diff --git a/CMakeLists.txt b/CMakeLists.txt
index feca4ab..73e0a26 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,9 +5,6 @@
     project("mbed TLS" C)
 endif()
 
-option(USE_PKCS11_HELPER_LIBRARY "Build mbed TLS with the pkcs11-helper library." OFF)
-option(ENABLE_ZLIB_SUPPORT "Build mbed TLS with zlib library." OFF)
-
 option(ENABLE_PROGRAMS "Build mbed TLS programs." ON)
 
 option(UNSAFE_BUILD "Allow unsafe builds. These builds ARE NOT SECURE." OFF)
@@ -170,14 +167,6 @@
 include_directories(include/)
 include_directories(library/)
 
-if(ENABLE_ZLIB_SUPPORT)
-    find_package(ZLIB)
-
-    if(ZLIB_FOUND)
-        include_directories(${ZLIB_INCLUDE_DIR})
-    endif(ZLIB_FOUND)
-endif(ENABLE_ZLIB_SUPPORT)
-
 add_subdirectory(library)
 add_subdirectory(include)
 
diff --git a/ChangeLog b/ChangeLog
deleted file mode 100644
index 5093c4e..0000000
--- a/ChangeLog
+++ /dev/null
@@ -1,3312 +0,0 @@
-mbed TLS ChangeLog (Sorted per branch, date)
-
-= mbed TLS x.x.x branch released xxxx-xx-xx
-
-Features
-   * Add the Any Policy certificate policy oid, as defined in
-     rfc 5280 section 4.2.1.4.
-   * It is now possible to use NIST key wrap mode via the mbedtls_cipher API.
-     Contributed by Jack Lloyd and Fortanix Inc.
-   * Add the Wi-SUN Field Area Network (FAN) device extended key usage.
-   * Add the oid certificate policy x509 extension.
-
-Bugfix
-   * Fix private key DER output in the key_app_writer example. File contents
-     were shifted by one byte, creating an invalid ASN.1 tag. Fixed by
-     Christian Walther in #2239.
-   * Fix potential memory leak in X.509 self test. Found and fixed by
-     Junhwan Park, #2106.
-   * Reduce stack usage of hkdf tests. Fixes #2195.
-   * Fix 1-byte buffer overflow in mbedtls_mpi_write_string() when
-     used with negative inputs. Found by Guido Vranken in #2404. Credit to
-     OSS-Fuzz.
-   * Fix bugs in the AEAD test suite which would be exposed by ciphers which
-     either used both encrypt and decrypt key schedules, or which perform padding.
-     GCM and CCM were not affected. Fixed by Jack Lloyd.
-   * Fix incorrect default port number in ssl_mail_client example's usage.
-     Found and fixed by irwir. #2337
-   * Add psa_util.h to test/cpp_dummy_build to fix build_default_make_gcc_and_cxx.
-     Fixed by Peter Kolbus (Garmin). #2579
-
-Changes
-   * Server's RSA certificate in certs.c was SHA-1 signed. In the default
-     mbedTLS configuration only SHA-2 signed certificates are accepted.
-     This certificate is used in the demo server programs, which lead the
-     client programs to fail at the peer's certificate verification
-     due to an unacceptable hash signature. The certificate has been
-     updated to one that is SHA-256 signed. Fix contributed by
-     Illya Gerasymchuk.
-   * Return from various debugging routines immediately if the
-     provided SSL context is unset.
-   * Remove dead code from bignum.c in the default configuration.
-     Found by Coverity, reported and fixed by Peter Kolbus (Garmin). Fixes #2309.
-   * Add test for minimal value of MBEDTLS_MPI_WINDOW_SIZE to all.sh.
-     Contributed by Peter Kolbus (Garmin).
-
-= mbed TLS 2.17.0 branch released 2019-03-19
-
-Features
-   * Add a new X.509 API call `mbedtls_x509_parse_der_nocopy()`
-     which allows copy-less parsing of DER encoded X.509 CRTs,
-     at the cost of additional lifetime constraints on the input
-     buffer, but at the benefit of reduced RAM consumption.
-   * Add a new function mbedtls_asn1_write_named_bitstring() to write ASN.1
-     named bitstring in DER as required by RFC 5280 Appendix B.
-   * Add MBEDTLS_REMOVE_3DES_CIPHERSUITES to allow removing 3DES ciphersuites
-     from the default list (enabled by default). See
-     https://sweet32.info/SWEET32_CCS16.pdf.
-
-API Changes
-   * Add a new X.509 API call `mbedtls_x509_parse_der_nocopy()`.
-     See the Features section for more information.
-   * Allow to opt in to the removal the API mbedtls_ssl_get_peer_cert()
-     for the benefit of saving RAM, by disabling the new compile-time
-     option MBEDTLS_SSL_KEEP_PEER_CERTIFICATE (enabled by default for
-     API stability). Disabling this option makes mbedtls_ssl_get_peer_cert()
-     always return NULL, and removes the peer_cert field from the
-     mbedtls_ssl_session structure which otherwise stores the peer's
-     certificate.
-
-Security
-   * Make mbedtls_ecdh_get_params return an error if the second key
-     belongs to a different group from the first. Before, if an application
-     passed keys that belonged to different group, the first key's data was
-     interpreted according to the second group, which could lead to either
-     an error or a meaningless output from mbedtls_ecdh_get_params. In the
-     latter case, this could expose at most 5 bits of the private key.
-
-Bugfix
-   * Fix a compilation issue with mbedtls_ecp_restart_ctx not being defined
-     when MBEDTLS_ECP_ALT is defined. Reported by jwhui. Fixes #2242.
-   * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
-     Raised as a comment in #1996.
-   * Reduce the stack consumption of mbedtls_mpi_fill_random() which could
-     previously lead to a stack overflow on constrained targets.
-   * Add `MBEDTLS_SELF_TEST` for the mbedtls_self_test functions
-     in the header files, which missed the precompilation check. #971
-   * Fix returning the value 1 when mbedtls_ecdsa_genkey failed.
-   * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
-   * Remove the mbedtls namespacing from the header file, to fix a "file not found"
-     build error. Fixed by Haijun Gu #2319.
-   * Fix signed-to-unsigned integer conversion warning
-     in X.509 module. Fixes #2212.
-   * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
-     Fixes #2190.
-   * Fix false failure in all.sh when backup files exist in include/mbedtls
-     (e.g. config.h.bak). Fixed by Peter Kolbus (Garmin) #2407.
-   * Ensure that unused bits are zero when writing ASN.1 bitstrings when using
-     mbedtls_asn1_write_bitstring().
-   * Fix issue when writing the named bitstrings in KeyUsage and NsCertType
-     extensions in CSRs and CRTs that caused these bitstrings to not be encoded
-     correctly as trailing zeroes were not accounted for as unused bits in the
-     leading content octet. Fixes #1610.
-
-Changes
-   * Reduce RAM consumption during session renegotiation by not storing
-     the peer CRT chain and session ticket twice.
-   * Include configuration file in all header files that use configuration,
-     instead of relying on other header files that they include.
-     Inserted as an enhancement for #1371
-   * Add support for alternative CSR headers, as used by Microsoft and defined
-     in RFC 7468. Found by Michael Ernst. Fixes #767.
-   * Correct many misspellings. Fixed by MisterDA #2371.
-   * Provide an abstraction of vsnprintf to allow alternative implementations
-     for platforms that don't provide it. Based on contributions by Joris Aerts
-     and Nathaniel Wesley Filardo.
-   * Fix clobber list in MIPS assembly for large integer multiplication.
-     Previously, this could lead to functionally incorrect assembly being
-     produced by some optimizing compilers, showing up as failures in
-     e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
-     by Aurelien Jarno and submitted by Jeffrey Martin.
-   * Reduce the complexity of the timing tests. They were assuming more than the
-     underlying OS actually guarantees.
-   * Fix configuration queries in ssl-opt.h. #2030
-   * Ensure that ssl-opt.h can be run in OS X. #2029
-   * Re-enable certain interoperability tests in ssl-opt.sh which had previously
-     been disabled for lack of a sufficiently recent version of GnuTLS on the CI.
-   * Ciphersuites based on 3DES now have the lowest priority by default when
-     they are enabled.
-
-= mbed TLS 2.16.0 branch released 2018-12-21
-
-Features
-   * Add a new config.h option of MBEDTLS_CHECK_PARAMS that enables validation
-     of parameters in the API. This allows detection of obvious misuses of the
-     API, such as passing NULL pointers. The API of existing functions hasn't
-     changed, but requirements on parameters have been made more explicit in
-     the documentation. See the corresponding API documentation for each
-     function to see for which parameter values it is defined. This feature is
-     disabled by default. See its API documentation in config.h for additional
-     steps you have to take when enabling it.
-
-API Changes
-   * The following functions in the random generator modules have been
-     deprecated and replaced as shown below. The new functions change
-     the return type from void to int to allow returning error codes when
-     using MBEDTLS_<MODULE>_ALT for the underlying AES or message digest
-     primitive. Fixes #1798.
-     mbedtls_ctr_drbg_update() -> mbedtls_ctr_drbg_update_ret()
-     mbedtls_hmac_drbg_update() -> mbedtls_hmac_drbg_update_ret()
-   * Extend ECDH interface to enable alternative implementations.
-   * Deprecate error codes of the form MBEDTLS_ERR_xxx_INVALID_KEY_LENGTH for
-     ARIA, CAMELLIA and Blowfish. These error codes will be replaced by
-     the more generic per-module error codes MBEDTLS_ERR_xxx_BAD_INPUT_DATA.
-   * Additional parameter validation checks have been added for the following
-     modules - AES, ARIA, Blowfish, CAMELLIA, CCM, GCM, DHM, ECP, ECDSA, ECDH,
-     ECJPAKE, SHA, Chacha20 and Poly1305, cipher, pk, RSA, and MPI.
-     Where modules have had parameter validation added, existing parameter
-     checks may have changed. Some modules, such as Chacha20 had existing
-     parameter validation whereas other modules had little. This has now been
-     changed so that the same level of validation is present in all modules, and
-     that it is now optional with the MBEDTLS_CHECK_PARAMS flag which by default
-     is off. That means that checks which were previously present by default
-     will no longer be.
-
-New deprecations
-   * Deprecate mbedtls_ctr_drbg_update and mbedtls_hmac_drbg_update
-     in favor of functions that can return an error code.
-
-Bugfix
-   * Fix for Clang, which was reporting a warning for the bignum.c inline
-     assembly for AMD64 targets creating string literals greater than those
-     permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482.
-   * Fix runtime error in `mbedtls_platform_entropy_poll()` when run
-     through qemu user emulation. Reported and fix suggested by randombit
-     in #1212. Fixes #1212.
-   * Fix an unsafe bounds check when restoring an SSL session from a ticket.
-     This could lead to a buffer overflow, but only in case ticket authentication
-     was broken. Reported and fix suggested by Guido Vranken in #659.
-   * Add explicit integer to enumeration type casts to example program
-     programs/pkey/gen_key which previously led to compilation failure
-     on some toolchains. Reported by phoenixmcallister. Fixes #2170.
-   * Fix double initialization of ECC hardware that made some accelerators
-     hang.
-   * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence
-     of check for certificate/key matching. Reported by Attila Molnar, #507.
-
- = mbed TLS 2.15.1 branch released 2018-11-30
-
- Changes
-    * Update the Mbed Crypto submodule to version 0.1.0b2.
-
- = mbed TLS 2.15.0 branch released 2018-11-23
-
- Features
-    * Add an experimental build option, USE_CRYPTO_SUBMODULE, to enable use of
-      Mbed Crypto as the source of the cryptography implementation.
-    * Add an experimental configuration option, MBEDTLS_PSA_CRYPTO_C, to enable
-      the PSA Crypto API from Mbed Crypto when additionally used with the
-      USE_CRYPTO_SUBMODULE build option.
-
- Changes
-    * Add unit tests for AES-GCM when called through mbedtls_cipher_auth_xxx()
-      from the cipher abstraction layer. Fixes #2198.
-
-= mbed TLS 2.14.1 branch released 2018-11-30
-
-Security
-   * Fix timing variations and memory access variations in RSA PKCS#1 v1.5
-     decryption that could lead to a Bleichenbacher-style padding oracle
-     attack. In TLS, this affects servers that accept ciphersuites based on
-     RSA decryption (i.e. ciphersuites whose name contains RSA but not
-     (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute),  Robert Gillham
-     (University of Adelaide), Daniel Genkin (University of Michigan),
-     Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom
-     (University of Adelaide, Data61). The attack is described in more detail
-     in the paper available here: http://cat.eyalro.net/cat.pdf  CVE-2018-19608
-   * In mbedtls_mpi_write_binary(), don't leak the exact size of the number
-     via branching and memory access patterns. An attacker who could submit
-     a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing
-     of the decryption and not its result could nonetheless decrypt RSA
-     plaintexts and forge RSA signatures. Other asymmetric algorithms may
-     have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham,
-     Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom.
-   * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG
-     modules.
-
-API Changes
-   * The new functions mbedtls_ctr_drbg_update_ret() and
-     mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update()
-     and mbedtls_hmac_drbg_update() respectively, but the new functions
-     report errors whereas the old functions return void. We recommend that
-     applications use the new functions.
-
-= mbed TLS 2.14.0 branch released 2018-11-19
-
-Security
-   * Fix overly strict DN comparison when looking for CRLs belonging to a
-     particular CA. This previously led to ignoring CRLs when the CRL's issuer
-     name and the CA's subject name differed in their string encoding (e.g.,
-     one using PrintableString and the other UTF8String) or in the choice of
-     upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue
-     #1784.
-   * Fix a flawed bounds check in server PSK hint parsing. In case the
-     incoming message buffer was placed within the first 64KiB of address
-     space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker
-     to trigger a memory access up to 64KiB beyond the incoming message buffer,
-     potentially leading to an application crash or information disclosure.
-   * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The
-     previous settings for the number of rounds made it practical for an
-     adversary to construct non-primes that would be erroneously accepted as
-     primes with high probability. This does not have an impact on the
-     security of TLS, but can matter in other contexts with numbers chosen
-     potentially by an adversary that should be prime and can be validated.
-     For example, the number of rounds was enough to securely generate RSA key
-     pairs or Diffie-Hellman parameters, but was insufficient to validate
-     Diffie-Hellman parameters properly.
-     See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and
-     Kenneth G. Paterson and Juraj Somorovsky.
-
-Features
-   * Add support for temporarily suspending expensive ECC computations after
-     some configurable amount of operations. This is intended to be used in
-     constrained, single-threaded systems where ECC is time consuming and can
-     block other operations until they complete. This is disabled by default,
-     but can be enabled by MBEDTLS_ECP_RESTARTABLE at compile time and
-     configured by mbedtls_ecp_set_max_ops() at runtime. It applies to the new
-     xxx_restartable functions in ECP, ECDSA, PK and X.509 (CRL not supported
-     yet), and to existing functions in ECDH and SSL (currently only
-     implemented client-side, for ECDHE-ECDSA ciphersuites in TLS 1.2,
-     including client authentication).
-   * Add support for Arm CPU DSP extensions to accelerate asymmetric key
-     operations. On CPUs where the extensions are available, they can accelerate
-     MPI multiplications used in ECC and RSA cryptography. Contributed by
-     Aurelien Jarno.
-   * Extend RSASSA-PSS signature to allow a smaller salt size. Previously, PSS
-     signature always used a salt with the same length as the hash, and returned
-     an error if this was not possible. Now the salt size may be up to two bytes
-     shorter. This allows the library to support all hash and signature sizes
-     that comply with FIPS 186-4, including SHA-512 with a 1024-bit key.
-   * Add support for 128-bit keys in CTR_DRBG. Note that using keys shorter
-     than 256 bits limits the security of generated material to 128 bits.
-
-API Changes
-   * Add a common error code of `MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED` for
-     a feature that is not supported by underlying alternative
-     implementations implementing cryptographic primitives. This is useful for
-     hardware accelerators that don't implement all options or features.
-
-New deprecations
-   * All module specific errors following the form
-     MBEDTLS_ERR_XXX_FEATURE_UNAVAILABLE that indicate a feature is not
-     supported are deprecated and are now replaced by the new equivalent
-     platform error.
-   * All module specific generic hardware acceleration errors following the
-     form MBEDTLS_ERR_XXX_HW_ACCEL_FAILED that are deprecated and are replaced
-     by the equivalent plaform error.
-   * Deprecate the function mbedtls_mpi_is_prime() in favor of
-     mbedtls_mpi_is_prime_ext() which allows specifying the number of
-     Miller-Rabin rounds.
-
-Bugfix
-   * Fix wrong order of freeing in programs/ssl/ssl_server2 example
-     application leading to a memory leak in case both
-     MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
-     Fixes #2069.
-   * Fix a bug in the update function for SSL ticket keys which previously
-     invalidated keys of a lifetime of less than a 1s. Fixes #1968.
-   * Fix failure in hmac_drbg in the benchmark sample application, when
-     MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
-   * Fix a bug in the record decryption routine ssl_decrypt_buf()
-     which lead to accepting properly authenticated but improperly
-     padded records in case of CBC ciphersuites using Encrypt-then-MAC.
-   * Fix memory leak and freeing without initialization in the example
-     program programs/x509/cert_write. Fixes #1422.
-   * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is
-     MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes #1091.
-   * Zeroize memory used for buffering or reassembling handshake messages
-     after use.
-   * Use `mbedtls_platform_zeroize()` instead of `memset()` for zeroization
-     of sensitive data in the example programs aescrypt2 and crypt_and_hash.
-   * Change the default string format used for various X.509 DN attributes to
-     UTF8String. Previously, the use of the PrintableString format led to
-     wildcards and non-ASCII characters being unusable in some DN attributes.
-     Reported by raprepo in #1860 and by kevinpt in #468. Fix contributed by
-     Thomas-Dee.
-   * Fix compilation failure for configurations which use compile time
-     replacements of standard calloc/free functions through the macros
-     MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO.
-     Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706.
-
-Changes
-   * Removed support for Yotta as a build tool.
-   * Add tests for session resumption in DTLS.
-   * Close a test gap in (D)TLS between the client side and the server side:
-     test the handling of large packets and small packets on the client side
-     in the same way as on the server side.
-   * Change the dtls_client and dtls_server samples to work by default over
-     IPv6 and optionally by a build option over IPv4.
-   * Change the use of Windows threading to use Microsoft Visual C++ runtime
-     calls, rather than Win32 API calls directly. This is necessary to avoid
-     conflict with C runtime usage. Found and fixed by irwir.
-   * Remember the string format of X.509 DN attributes when replicating
-     X.509 DNs. Previously, DN attributes were always written in their default
-     string format (mostly PrintableString), which could lead to CRTs being
-     created which used PrintableStrings in the issuer field even though the
-     signing CA used UTF8Strings in its subject field; while X.509 compliant,
-     such CRTs were rejected in some applications, e.g. some versions of
-     Firefox, curl and GnuTLS. Reported in #1033 by Moschn. Fix contributed by
-     Thomas-Dee.
-   * Improve documentation of mbedtls_ssl_get_verify_result().
-     Fixes #517 reported by github-monoculture.
-   * Add MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR flag to mbedtls_mpi_gen_prime() and
-     use it to reduce error probability in RSA key generation to levels mandated
-     by FIPS-186-4.
-
-= mbed TLS 2.13.1 branch released 2018-09-06
-
-API Changes
-   * Extend the platform module with an abstraction mbedtls_platform_gmtime_r()
-     whose implementation should behave as a thread-safe version of gmtime().
-     This allows users to configure such an implementation at compile time when
-     the target system cannot be deduced automatically, by setting the option
-     MBEDTLS_PLATFORM_GMTIME_R_ALT. At this stage Mbed TLS is only able to
-     automatically select implementations for Windows and POSIX C libraries.
-
-Bugfix
-   * Fix build failures on platforms where only gmtime() is available but
-     neither gmtime_r() nor gmtime_s() are present. Fixes #1907.
-
-= mbed TLS 2.13.0 branch released 2018-08-31
-
-Security
-   * Fix an issue in the X.509 module which could lead to a buffer overread
-     during certificate extensions parsing. In case of receiving malformed
-     input (extensions length field equal to 0), an illegal read of one byte
-     beyond the input buffer is made. Found and analyzed by Nathan Crandall.
-
-Features
-   * Add support for fragmentation of outgoing DTLS handshake messages. This
-     is controlled by the maximum fragment length as set locally or negotiated
-     with the peer, as well as by a new per-connection MTU option, set using
-     mbedtls_ssl_set_mtu().
-   * Add support for auto-adjustment of MTU to a safe value during the
-     handshake when flights do not get through (RFC 6347, section 4.1.1.1,
-     last paragraph).
-   * Add support for packing multiple records within a single datagram,
-     enabled by default.
-   * Add support for buffering out-of-order handshake messages in DTLS.
-     The maximum amount of RAM used for this can be controlled by the
-     compile-time constant MBEDTLS_SSL_DTLS_MAX_BUFFERING defined
-     in mbedtls/config.h.
-
-API Changes
-   * Add function mbedtls_ssl_set_datagram_packing() to configure
-     the use of datagram packing (enabled by default).
-
-Bugfix
-   * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
-     failure in the function could lead to other buffers being leaked.
-   * Fixes an issue with MBEDTLS_CHACHAPOLY_C which would not compile if
-     MBEDTLS_ARC4_C and MBEDTLS_CIPHER_NULL_CIPHER weren't also defined. #1890
-   * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
-     Fix contributed by Espressif Systems.
-   * Add ecc extensions only if an ecc based ciphersuite is used.
-     This improves compliance to RFC 4492, and as a result, solves
-     interoperability issues with BouncyCastle. Raised by milenamil in #1157.
-   * Replace printf with mbedtls_printf in the ARIA module. Found by
-     TrinityTonic in #1908.
-   * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
-     and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
-   * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
-     with TLS versions 1.1 and earlier when the server requested authentication
-     without providing a list of CAs. This was due to an overly strict bounds
-     check in parsing the CertificateRequest message,
-     introduced in Mbed TLS 2.12.0. Fixes #1954.
-   * Fix a miscalculation of the maximum record expansion in
-     mbedtls_ssl_get_record_expansion() in case of ChachaPoly ciphersuites,
-     or CBC ciphersuites in (D)TLS versions 1.1 or higher. Fixes #1913, #1914.
-   * Fix undefined shifts with negative values in certificates parsing
-     (found by Catena cyber using oss-fuzz)
-   * Fix memory leak and free without initialization in pk_encrypt
-     and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
-   * Remove redundant else statement. Raised by irwir. Fixes #1776.
-
-Changes
-   * Copy headers preserving timestamps when doing a "make install".
-     Contributed by xueruini.
-   * Allow the forward declaration of public structs. Contributed by Dawid
-     Drozd. Fixes #1215 raised by randombit.
-   * Improve compatibility with some alternative CCM implementations by using
-     CCM test vectors from RAM.
-   * Add support for buffering of out-of-order handshake messages.
-   * Add warnings to the documentation of the HKDF module to reduce the risk
-     of misusing the mbedtls_hkdf_extract() and mbedtls_hkdf_expand()
-     functions. Fixes #1775. Reported by Brian J. Murray.
-
-= mbed TLS 2.12.0 branch released 2018-07-25
-
-Security
-   * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
-     in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
-     partially recover the plaintext of messages under some conditions by
-     exploiting timing measurements. With DTLS, the attacker could perform
-     this recovery by sending many messages in the same connection. With TLS
-     or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
-     worked if the same secret (for example a HTTP Cookie) has been repeatedly
-     sent over connections manipulated by the attacker. Connections using GCM
-     or CCM instead of CBC, using hash sizes other than SHA-384, or using
-     Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
-     caused by a miscalculation (for SHA-384) in a countermeasure to the
-     original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
-     Shamir.
-   * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
-     1.2, that allowed a local attacker, able to execute code on the local
-     machine as well as manipulate network packets, to partially recover the
-     plaintext of messages under some conditions by using a cache attack
-     targeting an internal MD/SHA buffer. With TLS or if
-     mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
-     the same secret (for example a HTTP Cookie) has been repeatedly sent over
-     connections manipulated by the attacker. Connections using GCM or CCM
-     instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
-     Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
-   * Add a counter-measure against a vulnerability in TLS ciphersuites based
-     on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
-     execute code on the local machine as well as manipulate network packets,
-     to partially recover the plaintext of messages under some conditions (see
-     previous entry) by using a cache attack targeting the SSL input record
-     buffer. Connections using GCM or CCM instead of CBC or using
-     Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
-     Eyal Ronen and Adi Shamir.
-
-Features
-   * Add new crypto primitives from RFC 7539: stream cipher Chacha20, one-time
-     authenticator Poly1305 and AEAD construct Chacha20-Poly1305. Contributed
-     by Daniel King.
-   * Add support for CHACHA20-POLY1305 ciphersuites from RFC 7905.
-   * Add platform support for the Haiku OS. (https://www.haiku-os.org).
-     Contributed by Augustin Cavalier.
-   * Make the receive and transmit buffers independent sizes, for situations
-     where the outgoing buffer can be fixed at a smaller size than the incoming
-     buffer, which can save some RAM. If buffer lengths are kept equal, there
-     is no functional difference. Contributed by Angus Gratton, and also
-     independently contributed again by Paul Sokolovsky.
-   * Add support for key wrapping modes based on AES as defined by
-     NIST SP 800-38F algorithms KW and KWP and by RFC 3394 and RFC 5649.
-
-Bugfix
-   * Fix the key_app_writer example which was writing a leading zero byte which
-     was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
-   * Fix compilation error on C++, because of a variable named new.
-     Found and fixed by Hirotaka Niisato in #1783.
-   * Fix "no symbols" warning issued by ranlib when building on Mac OS X. Fix
-     contributed by tabascoeye.
-   * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
-     return value. Found by @davidwu2000. #839
-   * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
-     Philippe Antoine. Fixes #1623.
-   * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
-     by Brendan Shanks. Part of a fix for #992.
-   * Fix compilation error when MBEDTLS_ARC4_C is disabled and
-     MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
-   * Added length checks to some TLS parsing functions. Found and fixed by
-     Philippe Antoine from Catena cyber. #1663.
-   * Fix the inline assembly for the MPI multiply helper function for i386 and
-     i386 with SSE2. Found by László Langó. Fixes #1550
-   * Fix namespacing in header files. Remove the `mbedtls` namespacing in
-     the `#include` in the header files. Resolves #857
-   * Fix compiler warning of 'use before initialisation' in
-     mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
-     Drozd. #1098
-   * Fix decryption for zero length messages (which contain all padding) when a
-     CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
-     such a message was wrongly reported as an invalid record and therefore lead
-     to the connection being terminated. Seen most often with OpenSSL using
-     TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
-     contributed by Espressif Systems. Fixes #1632
-   * Fix ssl_client2 example to send application data with 0-length content
-     when the request_size argument is set to 0 as stated in the documentation.
-     Fixes #1833.
-   * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
-     deep copy of the session, and the peer certificate is not lost. Fixes #926.
-   * Fix build using -std=c99. Fixed by Nick Wilson.
-
-Changes
-   * Fail when receiving a TLS alert message with an invalid length, or invalid
-     zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
-   * Change the default behaviour of mbedtls_hkdf_extract() to return an error
-     when calling with a NULL salt and non-zero salt_len. Contributed by
-     Brian J Murray
-   * Change the shebang line in Perl scripts to look up perl in the PATH.
-     Contributed by fbrosson.
-   * Allow overriding the time on Windows via the platform-time abstraction.
-     Fixed by Nick Wilson.
-   * Use gmtime_r/gmtime_s for thread-safety. Fixed by Nick Wilson.
-
-= mbed TLS 2.11.0 branch released 2018-06-18
-
-Features
-   * Add additional block mode, OFB (Output Feedback), to the AES module and
-     cipher abstraction module.
-   * Implement the HMAC-based extract-and-expand key derivation function
-     (HKDF) per RFC 5869. Contributed by Thomas Fossati.
-   * Add support for the CCM* block cipher mode as defined in IEEE Std. 802.15.4.
-   * Add support for the XTS block cipher mode with AES (AES-XTS).
-     Contributed by Aorimn in pull request #414.
-   * In TLS servers, support offloading private key operations to an external
-     cryptoprocessor. Private key operations can be asynchronous to allow
-     non-blocking operation of the TLS server stack.
-
-Bugfix
-   * Fix the cert_write example to handle certificates signed with elliptic
-     curves as well as RSA. Fixes #777 found by dbedev.
-   * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
-     used by user applications. Found and fixed by Fabio Alessandrelli.
-   * Fix compilation warnings with IAR toolchain, on 32 bit platform.
-     Reported by rahmanih in #683
-   * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
-
-Changes
-   * Changed CMake defaults for IAR to treat all compiler warnings as errors.
-   * Changed the Clang parameters used in the CMake build files to work for
-     versions later than 3.6. Versions of Clang earlier than this may no longer
-     work. Fixes #1072
-
-= mbed TLS 2.10.0 branch released 2018-06-06
-
-Features
-   * Add support for ARIA cipher (RFC 5794) and associated TLS ciphersuites
-     (RFC 6209). Disabled by default, see MBEDTLS_ARIA_C in config.h
-
-API Changes
-   * Extend the platform module with a util component that contains
-     functionality shared by multiple Mbed TLS modules. At this stage
-     platform_util.h (and its associated platform_util.c) only contain
-     mbedtls_platform_zeroize(), which is a critical function from a security
-     point of view. mbedtls_platform_zeroize() needs to be regularly tested
-     against compilers to ensure that calls to it are not removed from the
-     output binary as part of redundant code elimination optimizations.
-     Therefore, mbedtls_platform_zeroize() is moved to the platform module to
-     facilitate testing and maintenance.
-
-Bugfix
-   * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
-     build to fail. Found by zv-io. Fixes #1651.
-
-Changes
-   * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
-   * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
-     TrinityTonic. #1359.
-
-= mbed TLS 2.9.0 branch released 2018-04-30
-
-Security
-   * Fix an issue in the X.509 module which could lead to a buffer overread
-     during certificate validation. Additionally, the issue could also lead to
-     unnecessary callback checks being made or to some validation checks to be
-     omitted. The overread could be triggered remotely, while the other issues
-     would require a non DER-compliant certificate to be correctly signed by a
-     trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
-     luocm. Fixes #825.
-   * Fix the buffer length assertion in the ssl_parse_certificate_request()
-     function which led to an arbitrary overread of the message buffer. The
-     overreads could be caused by receiving a malformed message at the point
-     where an optional signature algorithms list is expected when the signature
-     algorithms section is too short. In builds with debug output, the overread
-     data is output with the debug data.
-   * Fix a client-side bug in the validation of the server's ciphersuite choice
-     which could potentially lead to the client accepting a ciphersuite it didn't
-     offer or a ciphersuite that cannot be used with the TLS or DTLS version
-     chosen by the server. This could lead to corruption of internal data
-     structures for some configurations.
-
-Features
-   * Add an option, MBEDTLS_AES_FEWER_TABLES, to dynamically compute smaller AES
-     tables during runtime, thereby reducing the RAM/ROM footprint by ~6KiB.
-     Suggested and contributed by jkivilin in pull request #394.
-   * Add initial support for Curve448 (RFC 7748). Only mbedtls_ecp_mul() and
-     ECDH primitive functions (mbedtls_ecdh_gen_public(),
-     mbedtls_ecdh_compute_shared()) are supported for now. Contributed by
-     Nicholas Wilson in pull request #348.
-
-API Changes
-   * Extend the public API with the function of mbedtls_net_poll() to allow user
-     applications to wait for a network context to become ready before reading
-     or writing.
-   * Add function mbedtls_ssl_check_pending() to the public API to allow
-     a check for whether more more data is pending to be processed in the
-     internal message buffers.
-     This function is necessary to determine when it is safe to idle on the
-     underlying transport in case event-driven IO is used.
-
-Bugfix
-   * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
-     contributed by Brian J Murray and David Brown.
-   * Add missing dependencies in test suites that led to build failures
-     in configurations that omit certain hashes or public-key algorithms.
-     Fixes #1040.
-   * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
-     #1353
-   * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
-     MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
-     Deomid Ryabkov. Fixes #1299, #1475.
-   * Fix the Makefile build process for building shared libraries on Mac OS X.
-     Fixed by mnacamura.
-   * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
-     unable to parse keys which had only the optional parameters field of the
-     ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
-   * Return the plaintext data more quickly on unpadded CBC decryption, as
-     stated in the mbedtls_cipher_update() documentation. Contributed by
-     Andy Leiserson.
-   * Fix overriding and ignoring return values when parsing and writing to
-     a file in pk_sign program. Found by kevlut in #1142.
-   * Restrict usage of error code MBEDTLS_ERR_SSL_WANT_READ to situations
-     where data needs to be fetched from the underlying transport in order
-     to make progress. Previously, this error code was also occasionally
-     returned when unexpected messages were being discarded, ignoring that
-     further messages could potentially already be pending to be processed
-     in the internal buffers; these cases led to deadlocks when event-driven
-     I/O was used. Found and reported by Hubert Mis in #772.
-   * Fix buffer length assertions in the ssl_parse_certificate_request()
-     function which leads to a potential one byte overread of the message
-     buffer.
-   * Fix invalid buffer sizes passed to zlib during record compression and
-     decompression.
-   * Fix the soversion of libmbedcrypto to match the soversion of the
-     maintained 2.7 branch. The soversion was increased in Mbed TLS
-     version 2.7.1 to reflect breaking changes in that release, but the
-     increment was missed in 2.8.0 and later releases outside of the 2.7 branch.
-
-Changes
-   * Remove some redundant code in bignum.c. Contributed by Alexey Skalozub.
-   * Support cmake builds where Mbed TLS is a subproject. Fix contributed
-     independently by Matthieu Volat and Arne Schwabe.
-   * Improve testing in configurations that omit certain hashes or
-     public-key algorithms. Includes contributions by Gert van Dijk.
-   * Improve negative testing of X.509 parsing.
-   * Do not define global mutexes around readdir() and gmtime() in
-     configurations where the feature is disabled. Found and fixed by Gergely
-     Budai.
-   * Harden the function mbedtls_ssl_config_free() against misuse, so that it
-     doesn't leak memory if the user doesn't use mbedtls_ssl_conf_psk() and
-     instead incorrectly manipulates the configuration structure directly.
-     Found and fix submitted by junyeonLEE in #1220.
-   * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
-     MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
-     without PBES2. Fixed by Marcos Del Sol Vives.
-   * Add the order of the base point as N in the mbedtls_ecp_group structure
-     for Curve25519 (other curves had it already). Contributed by Nicholas
-     Wilson #481
-   * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
-     Krylov.
-   * Improve the documentation of mbedtls_ssl_write(). Suggested by
-     Paul Sokolovsky in #1356.
-   * Add an option in the Makefile to support ar utilities where the operation
-     letter must not be prefixed by '-', such as LLVM. Found and fixed by
-     Alex Hixon.
-   * Allow configuring the shared library extension by setting the DLEXT
-     environment variable when using the project makefiles.
-   * Optimize unnecessary zeroing in mbedtls_mpi_copy. Based on a contribution
-     by Alexey Skalozub in #405.
-   * In the SSL module, when f_send, f_recv or f_recv_timeout report
-     transmitting more than the required length, return an error. Raised by
-     Sam O'Connor in #1245.
-   * Improve robustness of mbedtls_ssl_derive_keys against the use of
-     HMAC functions with non-HMAC ciphersuites. Independently contributed
-     by Jiayuan Chen in #1377. Fixes #1437.
-   * Improve security of RSA key generation by including criteria from
-     FIPS 186-4. Contributed by Jethro Beekman. #1380
-   * Declare functions in header files even when an alternative implementation
-     of the corresponding module is activated by defining the corresponding
-     MBEDTLS_XXX_ALT macro. This means that alternative implementations do
-     not need to copy the declarations, and ensures that they will have the
-     same API.
-   * Add platform setup and teardown calls in test suites.
-
-= mbed TLS 2.8.0 branch released 2018-03-16
-
-Default behavior changes
-   * The truncated HMAC extension now conforms to RFC 6066. This means
-     that when both sides of a TLS connection negotiate the truncated
-     HMAC extension, Mbed TLS can now interoperate with other
-     compliant implementations, but this breaks interoperability with
-     prior versions of Mbed TLS. To restore the old behavior, enable
-     the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
-     config.h. Found by Andreas Walz (ivESK, Offenburg University of
-     Applied Sciences).
-
-Security
-   * Fix implementation of the truncated HMAC extension. The previous
-     implementation allowed an offline 2^80 brute force attack on the
-     HMAC key of a single, uninterrupted connection (with no
-     resumption of the session).
-   * Verify results of RSA private key operations to defend
-     against Bellcore glitch attack.
-   * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
-     a crash on invalid input.
-   * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
-     crash on invalid input.
-   * Fix CRL parsing to reject CRLs containing unsupported critical
-     extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
-
-Features
-   * Extend PKCS#8 interface by introducing support for the entire SHA
-     algorithms family when encrypting private keys using PKCS#5 v2.0.
-     This allows reading encrypted PEM files produced by software that
-     uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
-     OpenVPN Inc. Fixes #1339
-   * Add support for public keys encoded in PKCS#1 format. #1122
-
-New deprecations
-   * Deprecate support for record compression (configuration option
-     MBEDTLS_ZLIB_SUPPORT).
-
-Bugfix
-   * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
-     Fixes #1358.
-   * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
-   * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
-     with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
-     In the context of SSL, this resulted in handshake failure. Reported by
-     daniel in the Mbed TLS forum. #1351
-   * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
-   * Fix setting version TLSv1 as minimal version, even if TLS 1
-     is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
-     and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
-     MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
-   * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
-     only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
-     Nick Wilson on issue #355
-   * In test_suite_pk, pass valid parameters when testing for hash length
-     overflow. #1179
-   * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
-     by Guido Vranken. #639
-   * Log correct number of ciphersuites used in Client Hello message. #918
-   * Fix X509 CRT parsing that would potentially accept an invalid tag when
-     parsing the subject alternative names.
-   * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
-     that could cause a key exchange to fail on valid data.
-   * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
-     could cause a key exchange to fail on valid data.
-   * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
-     MBEDTLS_DEPRECATED_REMOVED. #1388
-   * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
-     Found through fuzz testing.
-
-Changes
-   * Fix tag lengths and value ranges in the documentation of CCM encryption.
-     Contributed by Mathieu Briand.
-   * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
-   * Remove support for the library reference configuration for picocoin.
-   * MD functions deprecated in 2.7.0 are no longer inline, to provide
-     a migration path for those depending on the library's ABI.
-   * Clarify the documentation of mbedtls_ssl_setup.
-   * Use (void) when defining functions with no parameters. Contributed by
-     Joris Aerts. #678
-
-= mbed TLS 2.7.0 branch released 2018-02-03
-
-Security
-   * Fix a heap corruption issue in the implementation of the truncated HMAC
-     extension. When the truncated HMAC extension is enabled and CBC is used,
-     sending a malicious application packet could be used to selectively corrupt
-     6 bytes on the peer's heap, which could potentially lead to crash or remote
-     code execution. The issue could be triggered remotely from either side in
-     both TLS and DTLS. CVE-2018-0488
-   * Fix a buffer overflow in RSA-PSS verification when the hash was too large
-     for the key size, which could potentially lead to crash or remote code
-     execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
-     Qualcomm Technologies Inc. CVE-2018-0487
-   * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
-     zeros.
-   * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
-     64 KiB to the address of the SSL buffer and causing a wrap around.
-   * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
-     default enabled) maximum fragment length extension is disabled in the
-     config and the application data buffer passed to mbedtls_ssl_write
-     is larger than the internal message buffer (16384 bytes by default), the
-     latter overflows. The exploitability of this issue depends on whether the
-     application layer can be forced into sending such large packets. The issue
-     was independently reported by Tim Nordell via e-mail and by Florin Petriuc
-     and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
-     Fixes #707.
-   * Add a provision to prevent compiler optimizations breaking the time
-     constancy of mbedtls_ssl_safer_memcmp().
-   * Ensure that buffers are cleared after use if they contain sensitive data.
-     Changes were introduced in multiple places in the library.
-   * Set PEM buffer to zero before freeing it, to avoid decoded private keys
-     being leaked to memory after release.
-   * Fix dhm_check_range() failing to detect trivial subgroups and potentially
-     leaking 1 bit of the private key. Reported by prashantkspatil.
-   * Make mbedtls_mpi_read_binary() constant-time with respect to the input
-     data. Previously, trailing zero bytes were detected and omitted for the
-     sake of saving memory, but potentially leading to slight timing
-     differences. Reported by Marco Macchetti, Kudelski Group.
-   * Wipe stack buffer temporarily holding EC private exponent
-     after keypair generation.
-   * Fix a potential heap buffer over-read in ALPN extension parsing
-     (server-side). Could result in application crash, but only if an ALPN
-     name larger than 16 bytes had been configured on the server.
-   * Change default choice of DHE parameters from untrustworthy RFC 5114
-     to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
-     manner.
-
-Features
-   * Allow comments in test data files.
-   * The selftest program can execute a subset of the tests based on command
-     line arguments.
-   * New unit tests for timing. Improve the self-test to be more robust
-     when run on a heavily-loaded machine.
-   * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
-     MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
-   * Add support for alternative implementations of GCM, selected by the
-     configuration flag MBEDTLS_GCM_ALT.
-   * Add support for alternative implementations for ECDSA, controlled by new
-     configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
-     MBEDTLS_ECDSDA_GENKEY_AT in config.h.
-     The following functions from the ECDSA module can be replaced
-     with alternative implementation:
-     mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
-   * Add support for alternative implementation of ECDH, controlled by the
-     new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
-     MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
-     The following functions from the ECDH module can be replaced
-     with an alternative implementation:
-     mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
-   * Add support for alternative implementation of ECJPAKE, controlled by
-     the new configuration flag MBEDTLS_ECJPAKE_ALT.
-   * Add mechanism to provide alternative implementation of the DHM module.
-
-API Changes
-   * Extend RSA interface by multiple functions allowing structure-
-     independent setup and export of RSA contexts. Most notably,
-     mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
-     up RSA contexts from partial key material and having them completed to the
-     needs of the implementation automatically. This allows to setup private RSA
-     contexts from keys consisting of N,D,E only, even if P,Q are needed for the
-     purpose or CRT and/or blinding.
-   * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
-     implementations of the RSA interface declared in rsa.h.
-   * The following functions in the message digest modules (MD2, MD4, MD5,
-     SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
-     The new functions change the return type from void to int to allow
-     returning error codes when using MBEDTLS_<MODULE>_ALT.
-     mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
-     mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
-     mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
-     mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
-
-New deprecations
-   * Deprecate usage of RSA primitives with non-matching key-type
-     (e.g. signing with a public key).
-   * Direct manipulation of structure fields of RSA contexts is deprecated.
-     Users are advised to use the extended RSA API instead.
-   * Deprecate usage of message digest functions that return void
-     (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
-     mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
-     any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
-     that can return an error code.
-   * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
-     parameters from RFC 3526 or the newly added parameters from RFC 7919.
-   * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
-     Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
-     etc.
-   * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
-     from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
-     accepting DHM parameters in binary form, matching the new constants.
-
-Bugfix
-   * Fix ssl_parse_record_header() to silently discard invalid DTLS records
-     as recommended in RFC 6347 Section 4.1.2.7.
-   * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
-     Found by projectgus and Jethro Beekman, #836.
-   * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
-   * Parse signature algorithm extension when renegotiating. Previously,
-     renegotiated handshakes would only accept signatures using SHA-1
-     regardless of the peer's preferences, or fail if SHA-1 was disabled.
-   * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
-     dates on leap years with 100 and 400 intervals are handled correctly. Found
-     by Nicholas Wilson. #694
-   * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
-     accepted. Generating these signatures required the private key.
-   * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
-     Found independently by Florian in the mbed TLS forum and by Mishamax.
-     #878, #1019.
-   * Fix variable used before assignment compilation warnings with IAR
-     toolchain. Found by gkerrien38.
-   * Fix unchecked return codes from AES, DES and 3DES functions in
-     pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
-     If a call to one of the functions of the cryptographic primitive modules
-     failed, the error may not be noticed by the function
-     mbedtls_pem_read_buffer() causing it to return invalid values. Found by
-     Guido Vranken. #756
-   * Include configuration file in md.h, to fix compilation warnings.
-     Reported by aaronmdjones in #1001
-   * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
-     writing routines that prevented these functions to work with alternative
-     RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
-   * Don't print X.509 version tag for v1 CRT's, and omit extensions for
-     non-v3 CRT's.
-   * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
-   * Fix net_would_block() to avoid modification by errno through fcntl() call.
-     Found by nkolban. Fixes #845.
-   * Fix handling of handshake messages in mbedtls_ssl_read() in case
-     MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
-   * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
-     Reported by Yolan Romailler.
-   * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
-   * Fix incorrect unit in benchmark output. #850
-   * Add size-checks for record and handshake message content, securing
-     fragile yet non-exploitable code-paths.
-   * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
-     MilenkoMitrovic, #1104
-   * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
-   * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
-   * Fix possible memory leaks in mbedtls_gcm_self_test().
-   * Added missing return code checks in mbedtls_aes_self_test().
-   * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
-     RSA test suite where the failure of CTR DRBG initialization lead to
-     freeing an RSA context and several MPI's without proper initialization
-     beforehand.
-   * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
-   * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
-     Found and fixed by Martijn de Milliano.
-   * Fix an issue in the cipher decryption with the mode
-     MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
-     Note, this padding mode is not used by the TLS protocol. Found and fixed by
-     Micha Kraus.
-   * Fix the entropy.c module to not call mbedtls_sha256_starts() or
-     mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
-   * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
-     mbedtls_sha512_init() is called before operating on the relevant context
-     structure. Do not assume that zeroizing a context is a correct way to
-     reset it. Found independently by ccli8 on Github.
-   * In mbedtls_entropy_free(), properly free the message digest context.
-   * Fix status handshake status message in programs/ssl/dtls_client.c. Found
-     and fixed by muddog.
-
-Changes
-   * Extend cert_write example program by options to set the certificate version
-     and the message digest. Further, allow enabling/disabling of authority
-     identifier, subject identifier and basic constraints extensions.
-   * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
-     particular, don't require P,Q if neither CRT nor blinding are
-     used. Reported and fix proposed independently by satur9nine and sliai
-     on GitHub.
-   * Only run AES-192 self-test if AES-192 is available. Fixes #963.
-   * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
-     undeclared dependency of the RSA module on the ASN.1 module.
-   * Update all internal usage of deprecated message digest functions to the
-     new ones with return codes. In particular, this modifies the
-     mbedtls_md_info_t structure. Propagate errors from these functions
-     everywhere except some locations in the ssl_tls.c module.
-   * Improve CTR_DRBG error handling by propagating underlying AES errors.
-   * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
-     modules where the software implementation can be replaced by a hardware
-     implementation.
-   * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
-     throughout the library.
-
-= mbed TLS 2.6.0 branch released 2017-08-10
-
-Security
-   * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
-     mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
-     X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
-     (default: 8) intermediates, even when it was not trusted. This could be
-     triggered remotely from either side. (With authmode set to 'required'
-     (the default), the handshake was correctly aborted).
-   * Reliably wipe sensitive data after use in the AES example applications
-     programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
-     Found by Laurent Simon.
-
-Features
-   * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
-     and the context struct mbedtls_platform_context to perform
-     platform-specific setup and teardown operations. The macro
-     MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
-     by the user in a platform_alt.h file. These new functions are required in
-     some embedded environments to provide a means of initialising underlying
-     cryptographic acceleration hardware.
-
-API Changes
-   * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
-     API consistent with mbed TLS 2.5.0. Specifically removed the inline
-     qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
-     mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
-     by James Cowgill. #978
-   * Certificate verification functions now set flags to -1 in case the full
-     chain was not verified due to an internal error (including in the verify
-     callback) or chain length limitations.
-   * With authmode set to optional, the TLS handshake is now aborted if the
-     verification of the peer's certificate failed due to an overlong chain or
-     a fatal error in the verify callback.
-
-Bugfix
-   * Add a check if iv_len is zero in GCM, and return an error if it is zero.
-     Reported by roberto. #716
-   * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
-     to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
-     always be implemented by pthread support. #696
-   * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
-     in the case of an error. Found by redplait. #590
-   * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
-     Reported and fix suggested by guidovranken. #740
-   * Fix conditional preprocessor directives in bignum.h to enable 64-bit
-     compilation when using ARM Compiler 6.
-   * Fix a potential integer overflow in the version verification for DER
-     encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
-     to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
-     KNOX Security, Samsung Research America
-   * Fix potential integer overflow in the version verification for DER
-     encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
-     to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
-     KNOX Security, Samsung Research America
-   * Fix a potential integer overflow in the version verification for DER
-     encoded X.509 certificates. The overflow could enable maliciously
-     constructed certificates to bypass the certificate verification check.
-   * Fix a call to the libc function time() to call the platform abstraction
-     function mbedtls_time() instead. Found by wairua. #666
-   * Avoid shadowing of time and index functions through mbed TLS function
-     arguments. Found by inestlerode. #557.
-
-Changes
-   * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
-     64-bit division. This is useful on embedded platforms where 64-bit division
-     created a dependency on external libraries. #708
-   * Removed mutexes from ECP hardware accelerator code. Now all hardware
-     accelerator code in the library leaves concurrency handling to the
-     platform. Reported by Steven Cooreman. #863
-   * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
-     config-no-entropy.h to reduce the RAM footprint.
-   * Added a test script that can be hooked into git that verifies commits
-     before they are pushed.
-   * Improve documentation of PKCS1 decryption functions.
-
-= mbed TLS 2.5.1 released 2017-06-21
-
-Security
-   * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
-     The issue could only happen client-side with renegotiation enabled.
-     Could result in DoS (application crash) or information leak
-     (if the application layer sent data read from mbedtls_ssl_read()
-     back to the server or to a third party). Can be triggered remotely.
-   * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
-     certificate verification. SHA-1 can be turned back on with a compile-time
-     option if needed.
-   * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
-     detect it sometimes. Reported by Hugo Leisink. #810
-   * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
-     potential Bleichenbacher/BERserk-style attack.
-
-Bugfix
-   * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
-     valid C and they prevented the test from compiling in Visual Studio 2015
-     and with GCC using the -Wpedantic compilation option.
-   * Fix insufficient support for signature-hash-algorithm extension,
-     resulting in compatibility problems with Chrome. Found by hfloyrd. #823
-   * Fix behaviour that hid the original cause of fatal alerts in some cases
-     when sending the alert failed. The fix makes sure not to hide the error
-     that triggered the alert.
-   * Fix SSLv3 renegotiation behaviour and stop processing data received from
-     peer after sending a fatal alert to refuse a renegotiation attempt.
-     Previous behaviour was to keep processing data even after the alert has
-     been sent.
-   * Accept empty trusted CA chain in authentication mode
-     MBEDTLS_SSL_VERIFY_OPTIONAL. Found by Jethro Beekman. #864
-   * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
-     fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
-     reflect bad EC curves within verification result.
-   * Fix bug that caused the modular inversion function to accept the invalid
-     modulus 1 and therefore to hang. Found by blaufish. #641.
-   * Fix incorrect sign computation in modular exponentiation when the base is
-     a negative MPI. Previously the result was always negative. Found by Guido
-     Vranken.
-   * Fix a numerical underflow leading to stack overflow in mpi_read_file()
-     that was triggered uppon reading an empty line. Found by Guido Vranken.
-
-Changes
-   * Send fatal alerts in more cases. The previous behaviour was to skip
-     sending the fatal alert and just drop the connection.
-   * Clarify ECDSA documentation and improve the sample code to avoid
-     misunderstanding and potentially dangerous use of the API. Pointed out
-     by Jean-Philippe Aumasson.
-
-= mbed TLS 2.5.0 branch released 2017-05-17
-
-Security
-   * Wipe stack buffers in RSA private key operations
-     (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
-     Simon.
-   * Add exponent blinding to RSA private operations as a countermeasure
-     against side-channel attacks like the cache attack described in
-     https://arxiv.org/abs/1702.08719v2.
-     Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
-     Clémentine Maurice and Stefan Mangard.
-
-Features
-   * Add hardware acceleration support for the Elliptic Curve Point module.
-     This involved exposing parts of the internal interface to enable
-     replacing the core functions and adding and alternative, module level
-     replacement support for enabling the extension of the interface.
-   * Add a new configuration option to 'mbedtls_ssl_config' to enable
-     suppressing the CA list in Certificate Request messages. The default
-     behaviour has not changed, namely every configured CAs name is included.
-
-API Changes
-   * The following functions in the AES module have been deprecated and replaced
-     by the functions shown below. The new functions change the return type from
-     void to int to allow returning error codes when using MBEDTLS_AES_ALT,
-     MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
-     mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
-     mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
-
-Bugfix
-   * Remove macros from compat-1.3.h that correspond to deleted items from most
-     recent versions of the library. Found by Kyle Keen.
-   * Fixed issue in the Threading module that prevented mutexes from
-     initialising. Found by sznaider. #667 #843
-   * Add checks in the PK module for the RSA functions on 64-bit systems.
-     The PK and RSA modules use different types for passing hash length and
-     without these checks the type cast could lead to data loss. Found by Guido
-     Vranken.
-
-= mbed TLS 2.4.2 branch released 2017-03-08
-
-Security
-   * Add checks to prevent signature forgeries for very large messages while
-     using RSA through the PK module in 64-bit systems. The issue was caused by
-     some data loss when casting a size_t to an unsigned int value in the
-     functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
-     mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
-   * Fixed potential livelock during the parsing of a CRL in PEM format in
-     mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
-     characters after the footer could result in the execution of an infinite
-     loop. The issue can be triggered remotely. Found by Greg Zaverucha,
-     Microsoft.
-   * Removed MD5 from the allowed hash algorithms for CertificateRequest and
-     CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
-     Introduced by interoperability fix for #513.
-   * Fixed a bug that caused freeing a buffer that was allocated on the stack,
-     when verifying the validity of a key on secp224k1. This could be
-     triggered remotely for example with a maliciously constructed certificate
-     and potentially could lead to remote code execution on some platforms.
-     Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
-     team. #569 CVE-2017-2784
-
-Bugfix
-   * Fix output certificate verification flags set by x509_crt_verify_top() when
-     traversing a chain of trusted CA. The issue would cause both flags,
-     MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
-     set when the verification conditions are not met regardless of the cause.
-     Found by Harm Verhagen and inestlerode. #665 #561
-   * Fix the redefinition of macro ssl_set_bio to an undefined symbol
-     mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
-     Found by omlib-lin. #673
-   * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
-     x509_csr.c that are reported when building mbed TLS with a config.h that
-     does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
-   * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
-     would compare 64 bits of the record counter instead of 48 bits as indicated
-     in RFC 6347 Section 4.3.1. This could cause the execution of the
-     renegotiation routines at unexpected times when the protocol is DTLS. Found
-     by wariua. #687
-   * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
-     the input string in PEM format to extract the different components. Found
-     by Eyal Itkin.
-   * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
-     cause buffer bound checks to be bypassed. Found by Eyal Itkin.
-   * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
-     cause buffer bound checks to be bypassed. Found by Eyal Itkin.
-   * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
-     cause buffer bound checks to be bypassed. Found by Eyal Itkin.
-   * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
-     cause buffer bound checks to be bypassed. Found by Eyal Itkin.
-   * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
-     Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
-   * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
-     by missing calls to mbedtls_pem_free() in cases when a
-     MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
-     fix proposed by Guido Vranken. #722
-   * Fixed the templates used to generate project and solution files for Visual
-     Studio 2015 as well as the files themselves, to remove a build warning
-     generated in Visual Studio 2015. Reported by Steve Valliere. #742
-   * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
-     Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
-   * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
-     number to write in hexadecimal is negative and requires an odd number of
-     digits. Found and fixed by Guido Vranken.
-   * Fix unlisted DES configuration dependency in some pkparse test cases. Found
-     by inestlerode. #555
-
-= mbed TLS 2.4.1 branch released 2016-12-13
-
-Changes
-   * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
-     Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
-     Authentication – October  2016
-
-= mbed TLS 2.4.0 branch released 2016-10-17
-
-Security
-   * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
-     with RFC-5116 and could lead to session key recovery in very long TLS
-     sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
-     TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
-     https://eprint.iacr.org/2016/475.pdf
-   * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
-     mbedtls_x509write_csr_der() when the signature is copied to the buffer
-     without checking whether there is enough space in the destination. The
-     issue cannot be triggered remotely. Found by Jethro Beekman.
-
-Features
-   * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
-     NIST SP 800-38B, RFC-4493 and RFC-4615.
-   * Added hardware entropy selftest to verify that the hardware entropy source
-     is functioning correctly.
-   * Added a script to print build environment info for diagnostic use in test
-     scripts, which is also now called by all.sh.
-   * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
-     configure the maximum length of a file path that can be buffered when
-     calling mbedtls_x509_crt_parse_path().
-   * Added a configuration file config-no-entropy.h that configures the subset of
-     library features that do not require an entropy source.
-   * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
-     to configure the minimum number of bytes for entropy sources using the
-     mbedtls_hardware_poll() function.
-
-Bugfix
-   * Fix for platform time abstraction to avoid dependency issues where a build
-     may need time but not the standard C library abstraction, and added
-     configuration consistency checks to check_config.h
-   * Fix dependency issue in Makefile to allow parallel builds.
-   * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
-     when GCM is used. Found by udf2457. #441
-   * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
-     enabled unless others were also present. Found by David Fernandez. #428
-   * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
-     a contribution from Tobias Tangemann. #541
-   * Fixed cert_app.c sample program for debug output and for use when no root
-     certificates are provided.
-   * Fix conditional statement that would cause a 1 byte overread in
-     mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
-   * Fixed pthread implementation to avoid unintended double initialisations
-     and double frees. Found by Niklas Amnebratt.
-   * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
-     builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
-     by inestlerode. #559.
-   * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
-     data structure until after error checks are successful. Found by
-     subramanyam-c. #622
-   * Fix documentation and implementation missmatch for function arguments of
-     mbedtls_gcm_finish(). Found by cmiatpaar. #602
-   * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
-   * Fix potential byte overread when verifying malformed SERVER_HELLO in
-     ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
-   * Fix check for validity of date when parsing in mbedtls_x509_get_time().
-     Found by subramanyam-c. #626
-   * Fix compatibility issue with Internet Explorer client authentication,
-     where the limited hash choices prevented the client from sending its
-     certificate. Found by teumas. #513
-   * Fix compilation without MBEDTLS_SELF_TEST enabled.
-
-Changes
-   * Extended test coverage of special cases, and added new timing test suite.
-   * Removed self-tests from the basic-built-test.sh script, and added all
-     missing self-tests to the test suites, to ensure self-tests are only
-     executed once.
-   * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
-   * Added support for a Yotta specific configuration file -
-     through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
-   * Added optimization for code space for X.509/OID based on configured
-     features. Contributed by Aviv Palivoda.
-   * Renamed source file library/net.c to library/net_sockets.c to avoid
-     naming collision in projects which also have files with the common name
-     net.c. For consistency, the corresponding header file, net.h, is marked as
-     deprecated, and its contents moved to net_sockets.h.
-   * Changed the strategy for X.509 certificate parsing and validation, to no
-     longer disregard certificates with unrecognised fields.
-
-= mbed TLS 2.3.0 branch released 2016-06-28
-
-Security
-   * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
-     required by PKCS1 v2.2
-   * Fix potential integer overflow to buffer overflow in
-     mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
-     (not triggerable remotely in (D)TLS).
-   * Fix a potential integer underflow to buffer overread in
-     mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
-     SSL/TLS.
-
-Features
-   * Support for platform abstraction of the standard C library time()
-     function.
-
-Bugfix
-   * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
-     arguments where the same (in-place doubling). Found and fixed by Janos
-     Follath. #309
-   * Fix potential build failures related to the 'apidoc' target, introduced
-     in the previous patch release. Found by Robert Scheck. #390 #391
-   * Fix issue in Makefile that prevented building using armar. #386
-   * Fix memory leak that occurred only when ECJPAKE was enabled and ECDHE and
-     ECDSA was disabled in config.h . The leak didn't occur by default.
-   * Fix an issue that caused valid certificates to be rejected whenever an
-     expired or not yet valid certificate was parsed before a valid certificate
-     in the trusted certificate list.
-   * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
-     buffer after DER certificates to be included in the raw representation.
-   * Fix issue that caused a hang when generating RSA keys of odd bitlength
-   * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
-     dereference possible.
-   * Fix issue that caused a crash if invalid curves were passed to
-     mbedtls_ssl_conf_curves. #373
-   * Fix issue in ssl_fork_server which was preventing it from functioning. #429
-   * Fix memory leaks in test framework
-   * Fix test in ssl-opt.sh that does not run properly with valgrind
-   * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
-
-Changes
-   * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
-     don't use the optimized assembly for bignum multiplication. This removes
-     the need to pass -fomit-frame-pointer to avoid a build error with -O0.
-   * Disabled SSLv3 in the default configuration.
-   * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
-     Skalozub).
-   * Fix non-compliance server extension handling. Extensions for SSLv3 are now
-     ignored, as required by RFC6101.
-
-= mbed TLS 2.2.1 released 2016-01-05
-
-Security
-   * Fix potential double free when mbedtls_asn1_store_named_data() fails to
-     allocate memory. Only used for certificate generation, not triggerable
-     remotely in SSL/TLS. Found by Rafał Przywara. #367
-   * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
-     SLOTH attack on TLS 1.2 server authentication (other attacks from the
-     SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
-     https://www.mitls.org/pages/attacks/SLOTH
-
-Bugfix
-   * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
-   * Fix bug in certificate validation that caused valid chains to be rejected
-     when the first intermediate certificate has pathLenConstraint=0. Found by
-     Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
-   * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
-     JayaraghavendranK. #372
-   * Fix suboptimal handling of unexpected records that caused interop issues
-     with some peers over unreliable links. Avoid dropping an entire DTLS
-     datagram if a single record in a datagram is unexpected, instead only
-     drop the record and look at subsequent records (if any are present) in
-     the same datagram. Found by jeannotlapin. #345
-
-= mbed TLS 2.2.0 released 2015-11-04
-
-Security
-   * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
-     once and some allocation fails. Cannot be forced remotely. Found by Guido
-     Vranken, Intelworks.
-   * Fix potential heap corruption on Windows when
-     mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
-     triggered remotely. Found by Guido Vranken, Intelworks.
-   * Fix potential buffer overflow in some asn1_write_xxx() functions.
-     Cannot be triggered remotely unless you create X.509 certificates based
-     on untrusted input or write keys of untrusted origin. Found by Guido
-     Vranken, Intelworks.
-   * The X509 max_pathlen constraint was not enforced on intermediate
-     certificates. Found by Nicholas Wilson, fix and tests provided by
-     Janos Follath. #280 and #319
-
-Features
-   * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
-     Disabled by default as the specification might still change.
-   * Added a key extraction callback to accees the master secret and key
-     block. (Potential uses include EAP-TLS and Thread.)
-
-Bugfix
-   * Self-signed certificates were not excluded from pathlen counting,
-     resulting in some valid X.509 being incorrectly rejected. Found and fix
-     provided by Janos Follath. #319
-   * Fix build error with configurations where ECDHE-PSK is the only key
-     exchange. Found and fix provided by Chris Hammond. #270
-   * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
-     ECHD-ECDSA if the only key exchange. Multiple reports. #310
-   * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
-     not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
-   * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
-     size/curve against the profile. Before that, there was no way to set a
-     minimum key size for end-entity certificates with RSA keys. Found by
-     Matthew Page of Scannex Electronics Ltd.
-   * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
-     Found by Kurt Danielson. #292
-   * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
-   * Fix bug in ASN.1 encoding of booleans that caused generated CA
-     certificates to be rejected by some applications, including OS X
-     Keychain. Found and fixed by Jonathan Leroy, Inikup.
-
-Changes
-   * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
-     or -1.
-
-= mbed TLS 2.1.2 released 2015-10-06
-
-Security
-   * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
-     overflow of the hostname or session ticket. Found by Guido Vranken,
-     Intelworks.
-   * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
-     once in the same handhake and mbedtls_ssl_conf_psk() was used.
-     Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
-     remotely.
-   * Fix stack buffer overflow in pkcs12 decryption (used by
-     mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
-     Found by Guido Vranken, Intelworks. Not triggerable remotely.
-   * Fix potential buffer overflow in mbedtls_mpi_read_string().
-     Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
-     of TLS, but might be in other uses. On 32 bit machines, requires reading a
-     string of close to or larger than 1GB to exploit; on 64 bit machines, would
-     require reading a string of close to or larger than 2^62 bytes.
-   * Fix potential random memory allocation in mbedtls_pem_read_buffer()
-     on crafted PEM input data. Found and fix provided by Guido Vranken,
-     Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
-     accept PEM data from an untrusted source.
-   * Fix possible heap buffer overflow in base64_encoded() when the input
-     buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
-     Intelworks. Not trigerrable remotely in TLS.
-   * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
-     the same mbedtls_ssl_config object and memory allocation fails. Found by
-     Guido Vranken, Intelworks. Cannot be forced remotely.
-   * Fix potential heap buffer overflow in servers that perform client
-     authentication against a crafted CA cert. Cannot be triggered remotely
-     unless you allow third parties to pick trust CAs for client auth.
-     Found by Guido Vranken, Intelworks.
-
-Bugfix
-   * Fix compile error in net.c with musl libc. Found and patch provided by
-     zhasha (#278).
-   * Fix macroization of 'inline' keyword when building as C++. (#279)
-
-Changes
-   * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
-     domain names are compliant with RFC 1035.
-   * Fixed paths for check_config.h in example config files. (Found by bachp)
-     (#291)
-
-= mbed TLS 2.1.1 released 2015-09-17
-
-Security
-   * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
-     signatures. (Found by Florian Weimer, Red Hat.)
-     https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
-   * Fix possible client-side NULL pointer dereference (read) when the client
-     tries to continue the handshake after it failed (a misuse of the API).
-     (Found and patch provided by Fabian Foerg, Gotham Digital Science using
-     afl-fuzz.)
-
-Bugfix
-   * Fix warning when using a 64bit platform. (found by embedthis) (#275)
-   * Fix off-by-one error in parsing Supported Point Format extension that
-     caused some handshakes to fail.
-
-Changes
-   * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
-     use of mbedtls_x509_crt_profile_next. (found by NWilson)
-   * When a client initiates a reconnect from the same port as a live
-     connection, if cookie verification is available
-     (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
-     callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
-     detected and mbedtls_ssl_read() will return
-     MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
-     handshake with the same context. (See RFC 6347 section 4.2.8.)
-
-= mbed TLS 2.1.0 released 2015-09-04
-
-Features
-   * Added support for yotta as a build system.
-   * Primary open source license changed to Apache 2.0 license.
-
-Bugfix
-   * Fix segfault in the benchmark program when benchmarking DHM.
-   * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
-     Leisink).
-   * Fix bug when parsing a ServerHello without extensions (found by David
-     Sears).
-   * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
-     (found by Benoit Lecocq).
-   * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
-     installed (found by Rawi666).
-   * Fix compile error with armcc 5 with --gnu option.
-   * Fix bug in Makefile that caused programs not to be installed correctly
-     (found by robotanarchy) (#232).
-   * Fix bug in Makefile that prevented from installing without building the
-     tests (found by robotanarchy) (#232).
-   * Fix missing -static-libgcc when building shared libraries for Windows
-     with make.
-   * Fix link error when building shared libraries for Windows with make.
-   * Fix error when loading libmbedtls.so.
-   * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
-     be always used (found by dcb314) (#235)
-   * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
-     result trying to unlock an unlocked mutex on invalid input (found by
-     Fredrik Axelsson) (#257)
-   * Fix -Wshadow warnings (found by hnrkp) (#240)
-   * Fix memory corruption on client with overlong PSK identity, around
-     SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
-     Aleksandrs Saveljevs) (#238)
-   * Fix unused function warning when using MBEDTLS_MDx_ALT or
-     MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
-   * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
-
-Changes
-   * The PEM parser now accepts a trailing space at end of lines (#226).
-   * It is now possible to #include a user-provided configuration file at the
-     end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
-     compiler's command line.
-   * When verifying a certificate chain, if an intermediate certificate is
-     trusted, no later cert is checked. (suggested by hannes-landeholm)
-     (#220).
-   * Prepend a "thread identifier" to debug messages (issue pointed out by
-     Hugo Leisink) (#210).
-   * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
-     length.
-
-= mbed TLS 2.0.0 released 2015-07-13
-
-Features
-   * Support for DTLS 1.0 and 1.2 (RFC 6347).
-   * Ability to override core functions from MDx, SHAx, AES and DES modules
-     with custom implementation (eg hardware accelerated), complementing the
-     ability to override the whole module.
-   * New server-side implementation of session tickets that rotate keys to
-     preserve forward secrecy, and allows sharing across multiple contexts.
-   * Added a concept of X.509 cerificate verification profile that controls
-     which algorithms and key sizes (curves for ECDSA) are acceptable.
-   * Expanded configurability of security parameters in the SSL module with
-     mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
-   * Introduced a concept of presets for SSL security-relevant configuration
-     parameters.
-
-API Changes
-   * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
-     You now need to link to all of them if you use TLS for example.
-   * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
-     Some names have been further changed to make them more consistent.
-     Migration helpers scripts/rename.pl and include/mbedtls/compat-1.3.h are
-     provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
-   * Renamings of fields inside structures, not covered by the previous list:
-     mbedtls_cipher_info_t.key_length -> key_bitlen
-     mbedtls_cipher_context_t.key_length -> key_bitlen
-     mbedtls_ecp_curve_info.size -> bit_size
-   * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
-   * The following _init() functions that could return errors have
-     been split into an _init() that returns void and another function that
-     should generally be the first function called on this context after init:
-     mbedtls_ssl_init() -> mbedtls_ssl_setup()
-     mbedtls_ccm_init() -> mbedtls_ccm_setkey()
-     mbedtls_gcm_init() -> mbedtls_gcm_setkey()
-     mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
-     mbedtls_ctr_drbg_init()  -> mbedtls_ctr_drbg_seed()
-     Note that for mbedtls_ssl_setup(), you need to be done setting up the
-     ssl_config structure before calling it.
-   * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
-     ssl_set_session() and ssl_set_client_transport_id(), plus
-     ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
-     (see rename.pl and compat-1.3.h above) and their first argument's type
-     changed from ssl_context to ssl_config.
-   * ssl_set_bio() changed signature (contexts merged, order switched, one
-     additional callback for read-with-timeout).
-   * The following functions have been introduced and must be used in callback
-     implementations (SNI, PSK) instead of their *conf counterparts:
-     mbedtls_ssl_set_hs_own_cert()
-     mbedtls_ssl_set_hs_ca_chain()
-     mbedtls_ssl_set_hs_psk()
-   * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
-     using mbedtls_ssl_set_hostname().
-   * mbedtls_ssl_conf_session_cache() changed prototype (only one context
-     pointer, parameters reordered).
-   * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
-     place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
-   * The SSL debug callback gained two new arguments (file name, line number).
-   * Debug modes were removed.
-   * mbedtls_ssl_conf_truncated_hmac() now returns void.
-   * mbedtls_memory_buffer_alloc_init() now returns void.
-   * X.509 verification flags are now an uint32_t. Affect the signature of:
-     mbedtls_ssl_get_verify_result()
-     mbedtls_x509_ctr_verify_info()
-     mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
-     mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
-   * The following functions changed prototype to avoid an in-out length
-     parameter:
-     mbedtls_base64_encode()
-     mbedtls_base64_decode()
-     mbedtls_mpi_write_string()
-     mbedtls_dhm_calc_secret()
-   * In the NET module, all "int" and "int *" arguments for file descriptors
-     changed type to "mbedtls_net_context *".
-   * net_accept() gained new arguments for the size of the client_ip buffer.
-   * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
-     return void.
-   * ecdsa_write_signature() gained an additional md_alg argument and
-     ecdsa_write_signature_det() was deprecated.
-   * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
-   * Last argument of x509_crt_check_key_usage() and
-     mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
-   * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
-     available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
-   * Test certificates in certs.c are no longer guaranteed to be nul-terminated
-     strings; use the new *_len variables instead of strlen().
-   * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
-     mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
-     length parameter to include the terminating null byte for PEM input.
-   * Signature of mpi_mul_mpi() changed to make the last argument unsigned
-   * calloc() is now used instead of malloc() everywhere. API of platform
-     layer and the memory_buffer_alloc module changed accordingly.
-     (Thanks to Mansour Moufid for helping with the replacement.)
-   * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
-     (support for renegotiation now needs explicit enabling in config.h).
-   * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
-     in config.h
-   * net_connect() and net_bind() have a new 'proto' argument to choose
-     between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
-     Their 'port' argument type is changed to a string.
-   * Some constness fixes
-
-Removals
-   * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
-   * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
-     mbedtls_ecp_muladd().
-   * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
-     (use generic functions from md.h)
-   * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
-     waiting function.
-   * Removed test DHM parameters from the test certs module.
-   * Removed the PBKDF2 module (use PKCS5).
-   * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
-   * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
-   * Removed openssl.h (very partial OpenSSL compatibility layer).
-   * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
-   * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
-     been removed (compiler is required to support 32-bit operations).
-   * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
-   * Removed test program o_p_test, the script compat.sh does more.
-   * Removed test program ssl_test, superseded by ssl-opt.sh.
-   * Removed helper script active-config.pl
-
-New deprecations
-   * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
-     argument (allowing memory savings if HMAC is not used)
-
-Semi-API changes (technically public, morally private)
-   * Renamed a few headers to include _internal in the name. Those headers are
-     not supposed to be included by users.
-   * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
-   * Changed pk_info_t into an opaque structure.
-   * Changed cipher_base_t into an opaque structure.
-   * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
-   * x509_crt.key_usage changed from unsigned char to unsigned int.
-   * Removed r and s from ecdsa_context
-   * Removed mode from des_context and des3_context
-
-Default behavior changes
-   * The default minimum TLS version is now TLS 1.0.
-   * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
-     default ciphersuite list returned by ssl_list_ciphersuites()
-   * Support for receiving SSLv2 ClientHello is now disabled by default at
-     compile time.
-   * The default authmode for SSL/TLS clients is now REQUIRED.
-   * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
-     enabled in the default configuration, this is only noticeable if using a
-     custom config.h
-   * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
-   * A minimum RSA key size of 2048 bits is now enforced during ceritificate
-     chain verification.
-   * Negotiation of truncated HMAC is now disabled by default on server too.
-   * The following functions are now case-sensitive:
-     mbedtls_cipher_info_from_string()
-     mbedtls_ecp_curve_info_from_name()
-     mbedtls_md_info_from_string()
-     mbedtls_ssl_ciphersuite_from_string()
-     mbedtls_version_check_feature()
-
-Requirement changes
-   * The minimum MSVC version required is now 2010 (better C99 support).
-   * The NET layer now unconditionnaly relies on getaddrinfo() and select().
-   * Compiler is required to support C99 types such as long long and uint32_t.
-
-API changes from the 1.4 preview branch
-   * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
-     new prototype, and mbedtls_ssl_set_read_timeout().
-   * The following functions now return void:
-     mbedtls_ssl_conf_transport()
-     mbedtls_ssl_conf_max_version()
-     mbedtls_ssl_conf_min_version()
-   * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
-     instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
-     an example implementation, see mbedtls_timing_delay_context and
-     mbedtls_timing_set/get_delay().
-   * With UDP sockets, it is no longer necessary to call net_bind() again
-     after a successful net_accept().
-
-Changes
-   * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
-     thread-safe if MBEDTLS_THREADING_C is enabled.
-   * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
-     more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
-
-= mbed TLS 1.3 branch
-
-Security
-   * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
-     extendedKeyUsage on the leaf certificate was lost (results not accessible
-     via ssl_get_verify_results()).
-   * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
-     https://dl.acm.org/citation.cfm?id=2714625
-
-Features
-   * Improve ECC performance by using more efficient doubling formulas
-     (contributed by Peter Dettman).
-   * Add x509_crt_verify_info() to display certificate verification results.
-   * Add support for reading DH parameters with privateValueLength included
-     (contributed by Daniel Kahn Gillmor).
-   * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
-   * Add support for id-at-uniqueIdentifier in X.509 names.
-   * Add support for overriding snprintf() (except on Windows) and exit() in
-     the platform layer.
-   * Add an option to use macros instead of function pointers in the platform
-     layer (helps get rid of unwanted references).
-   * Improved Makefiles for Windows targets by fixing library targets and making
-     cross-compilation easier (thanks to Alon Bar-Lev).
-   * The benchmark program also prints heap usage for public-key primitives
-     if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
-   * New script ecc-heap.sh helps measuring the impact of ECC parameters on
-     speed and RAM (heap only for now) usage.
-   * New script memory.sh helps measuring the ROM and RAM requirements of two
-     reduced configurations (PSK-CCM and NSA suite B).
-   * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
-     warnings on use of deprecated functions (with GCC and Clang only).
-   * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
-     errors on use of deprecated functions.
-
-Bugfix
-   * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
-   * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
-   * Fix bug in entropy.c when THREADING_C is also enabled that caused
-     entropy_free() to crash (thanks to Rafał Przywara).
-   * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
-     once on the same context.
-   * Fix bug in ssl_mail_client when password is longer that username (found
-     by Bruno Pape).
-   * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
-     (detected by Clang's 3.6 UBSan).
-   * mpi_size() and mpi_msb() would segfault when called on an mpi that is
-     initialized but not set (found by pravic).
-   * Fix detection of support for getrandom() on Linux (reported by syzzer) by
-     doing it at runtime (using uname) rather that compile time.
-   * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
-   * Fix potential NULL pointer dereference (not trigerrable remotely) when
-     ssl_write() is called before the handshake is finished (introduced in
-     1.3.10) (first reported by Martin Blumenstingl).
-   * Fix bug in pk_parse_key() that caused some valid private EC keys to be
-     rejected.
-   * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
-   * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
-   * Fix hardclock() (only used in the benchmarking program) with some
-     versions of mingw64 (found by kxjhlele).
-   * Fix warnings from mingw64 in timing.c (found by kxjklele).
-   * Fix potential unintended sign extension in asn1_get_len() on 64-bit
-     platforms.
-   * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
-   * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
-     POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
-     in 1.3.10).
-   * Add missing extern "C" guard in aesni.h (reported by amir zamani).
-   * Add missing dependency on SHA-256 in some x509 programs (reported by
-     Gergely Budai).
-   * Fix bug related to ssl_set_curves(): the client didn't check that the
-     curve picked by the server was actually allowed.
-
-Changes
-   * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
-   * Remove potential sources of timing variations (some contributed by Pascal
-     Junod).
-   * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
-   * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
-   * compat-1.2.h and openssl.h are deprecated.
-   * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
-     more flexible (warning: OFLAGS is not used any more) (see the README)
-     (contributed by Alon Bar-Lev).
-   * ssl_set_own_cert() no longer calls pk_check_pair() since the
-     performance impact was bad for some users (this was introduced in 1.3.10).
-   * Move from SHA-1 to SHA-256 in example programs using signatures
-     (suggested by Thorsten Mühlfelder).
-   * Remove some unneeded inclusions of header files from the standard library
-     "minimize" others (eg use stddef.h if only size_t is needed).
-   * Change #include lines in test files to use double quotes instead of angle
-     brackets for uniformity with the rest of the code.
-   * Remove dependency on sscanf() in X.509 parsing modules.
-
-= mbed TLS 1.3.10 released 2015-02-09
-Security
-   * NULL pointer dereference in the buffer-based allocator when the buffer is
-     full and polarssl_free() is called (found by Mark Hasemeyer)
-     (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
-     not by default).
-   * Fix remotely-triggerable uninitialised pointer dereference caused by
-     crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
-     client certificate) (found using Codenomicon Defensics).
-   * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
-     (TLS server is not affected if it doesn't ask for a client certificate)
-     (found using Codenomicon Defensics).
-   * Fix potential stack overflow while parsing crafted X.509 certificates
-     (TLS server is not affected if it doesn't ask for a client certificate)
-     (found using Codenomicon Defensics).
-   * Fix timing difference that could theoretically lead to a
-     Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
-     (reported by Sebastian Schinzel).
-
-Features
-   * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
-   * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
-   * Add support for Encrypt-then-MAC (RFC 7366).
-   * Add function pk_check_pair() to test if public and private keys match.
-   * Add x509_crl_parse_der().
-   * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
-     length of an X.509 verification chain.
-   * Support for renegotiation can now be disabled at compile-time
-   * Support for 1/n-1 record splitting, a countermeasure against BEAST.
-   * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
-     for pre-1.2 clients when multiple certificates are available.
-   * Add support for getrandom() syscall on recent Linux kernels with Glibc or
-     a compatible enough libc (eg uClibc).
-   * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
-     while using the default ciphersuite list.
-   * Added new error codes and debug messages about selection of
-     ciphersuite/certificate.
-
-Bugfix
-   * Stack buffer overflow if ctr_drbg_update() is called with too large
-     add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
-   * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
-     if memory_buffer_alloc_init() was called with buf not aligned and len not
-     a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
-   * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
-     by Julian Ospald).
-   * Fix potential undefined behaviour in Camellia.
-   * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
-     multiple of 8 (found by Gergely Budai).
-   * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
-     Peter Vaskovic).
-   * Fix assembly selection for MIPS64 (thanks to James Cowgill).
-   * ssl_get_verify_result() now works even if the handshake was aborted due
-     to a failed verification (found by Fredrik Axelsson).
-   * Skip writing and parsing signature_algorithm extension if none of the
-     key exchanges enabled needs certificates. This fixes a possible interop
-     issue with some servers when a zero-length extension was sent. (Reported
-     by Peter Dettman.)
-   * On a 0-length input, base64_encode() did not correctly set output length
-     (found by Hendrik van den Boogaard).
-
-Changes
-   * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
-     switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
-   * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
-   * ssl_set_own_cert() now returns an error on key-certificate mismatch.
-   * Forbid repeated extensions in X.509 certificates.
-   * debug_print_buf() now prints a text view in addition to hexadecimal.
-   * A specific error is now returned when there are ciphersuites in common
-     but none of them is usable due to external factors such as no certificate
-     with a suitable (extended)KeyUsage or curve or no PSK set.
-   * It is now possible to disable negotiation of truncated HMAC server-side
-     at runtime with ssl_set_truncated_hmac().
-   * Example programs for SSL client and server now disable SSLv3 by default.
-   * Example programs for SSL client and server now disable RC4 by default.
-   * Use platform.h in all test suites and programs.
-
-= PolarSSL 1.3.9 released 2014-10-20
-Security
-   * Lowest common hash was selected from signature_algorithms extension in
-     TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
-   * Remotely-triggerable memory leak when parsing some X.509 certificates
-     (server is not affected if it doesn't ask for a client certificate)
-     (found using Codenomicon Defensics).
-   * Remotely-triggerable memory leak when parsing crafted ClientHello
-     (not affected if ECC support was compiled out) (found using Codenomicon
-     Defensics).
-
-Bugfix
-   * Support escaping of commas in x509_string_to_names()
-   * Fix compile error in ssl_pthread_server (found by Julian Ospald).
-   * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
-   * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
-   * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
-   * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
-     are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
-   * Remove non-existent file from VS projects (found by Peter Vaskovic).
-   * ssl_read() could return non-application data records on server while
-     renegotation was pending, and on client when a HelloRequest was received.
-   * Server-initiated renegotiation would fail with non-blocking I/O if the
-     write callback returned WANT_WRITE when requesting renegotiation.
-   * ssl_close_notify() could send more than one message in some circumstances
-     with non-blocking I/O.
-   * Fix compiler warnings on iOS (found by Sander Niemeijer).
-   * x509_crt_parse() did not increase total_failed on PEM error
-   * Fix compile error with armcc in mpi_is_prime()
-   * Fix potential bad read in parsing ServerHello (found by Adrien
-     Vialletelle).
-
-Changes
-   * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
-     standard defining how to use SHA-2 with SSL 3.0).
-   * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
-     ambiguous on how to encode some packets with SSL 3.0).
-   * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
-     RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
-   * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
-     POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
-   * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
-     RSA keys.
-   * Accept spaces at end of line or end of buffer in base64_decode().
-   * X.509 certificates with more than one AttributeTypeAndValue per
-     RelativeDistinguishedName are not accepted any more.
-
-= PolarSSL 1.3.8 released 2014-07-11
-Security
-   * Fix length checking for AEAD ciphersuites (found by Codenomicon).
-     It was possible to crash the server (and client) using crafted messages
-     when a GCM suite was chosen.
-
-Features
-   * Add CCM module and cipher mode to Cipher Layer
-   * Support for CCM and CCM_8 ciphersuites
-   * Support for parsing and verifying RSASSA-PSS signatures in the X.509
-     modules (certificates, CRLs and CSRs).
-   * Blowfish in the cipher layer now supports variable length keys.
-   * Add example config.h for PSK with CCM, optimized for low RAM usage.
-   * Optimize for RAM usage in example config.h for NSA Suite B profile.
-   * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
-     from the default list (inactive by default).
-   * Add server-side enforcement of sent renegotiation requests
-     (ssl_set_renegotiation_enforced())
-   * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
-     ciphersuites to use and save some memory if the list is small.
-
-Changes
-   * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
-     required on some platforms (e.g. OpenBSD)
-   * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
-     against unwanted compiler optimizations
-   * md_list() now returns hashes strongest first
-   * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
-     strongest offered by client.
-   * All public contexts have _init() and _free() functions now for simpler
-     usage pattern
-
-Bugfix
-   * Fix in debug_print_msg()
-   * Enforce alignment in the buffer allocator even if buffer is not aligned
-   * Remove less-than-zero checks on unsigned numbers
-   * Stricter check on SSL ClientHello internal sizes compared to actual packet
-     size (found by TrustInSoft)
-   * Fix WSAStartup() return value check (found by Peter Vaskovic)
-   * Other minor issues (found by Peter Vaskovic)
-   * Fix symlink command for cross compiling with CMake (found by Andre
-     Heinecke)
-   * Fix DER output of gen_key app (found by Gergely Budai)
-   * Very small records were incorrectly rejected when truncated HMAC was in
-     use with some ciphersuites and versions (RC4 in all versions, CBC with
-     versions < TLS 1.1).
-   * Very large records using more than 224 bytes of padding were incorrectly
-     rejected with CBC-based ciphersuites and TLS >= 1.1
-   * Very large records using less padding could cause a buffer overread of up
-     to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
-   * Restore ability to use a v1 cert as a CA if trusted locally. (This had
-     been removed in 1.3.6.)
-   * Restore ability to locally trust a self-signed cert that is not a proper
-     CA for use as an end entity certificate. (This had been removed in
-     1.3.6.)
-   * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
-   * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
-     interpret semicolons as comment delimiters (found by Barry K. Nathan).
-   * Fix off-by-one error in parsing Supported Point Format extension that
-     caused some handshakes to fail.
-   * Fix possible miscomputation of the premaster secret with DHE-PSK key
-     exchange that caused some handshakes to fail with other implementations.
-     (Failure rate <= 1/255 with common DHM moduli.)
-   * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
-   * Fix base64_decode() to return and check length correctly (in case of
-     tight buffers)
-   * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
-     by Hui Dong)
-
-= PolarSSL 1.3.7 released on 2014-05-02
-Features
-   * debug_set_log_mode() added to determine raw or full logging
-   * debug_set_threshold() added to ignore messages over threshold level
-   * version_check_feature() added to check for compile-time options at
-     run-time
-
-Changes
-   * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
-     checked and filled in the relevant module headers
-   * Debug module only outputs full lines instead of parts
-   * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
-   * AES-NI now compiles with "old" assemblers too
-   * Ciphersuites based on RC4 now have the lowest priority by default
-
-Bugfix
-   * Only iterate over actual certificates in ssl_write_certificate_request()
-     (found by Matthew Page)
-   * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
-     Karger)
-   * cert_write app should use subject of issuer certificate as issuer of cert
-   * Fix false reject in padding check in ssl_decrypt_buf() for CBC
-     ciphersuites, for full SSL frames of data.
-   * Improve interoperability by not writing extension length in ClientHello /
-     ServerHello when no extensions are present (found by Matthew Page)
-   * rsa_check_pubkey() now allows an E up to N
-   * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
-   * mpi_fill_random() was creating numbers larger than requested on
-     big-endian platform when size was not an integer number of limbs
-   * Fix dependencies issues in X.509 test suite.
-   * Some parts of ssl_tls.c were compiled even when the module was disabled.
-   * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
-   * Fix detection of Clang on some Apple platforms with CMake
-     (found by Barry K. Nathan)
-
-= PolarSSL 1.3.6 released on 2014-04-11
-
-Features
-   * Support for the ALPN SSL extension
-   * Add option 'use_dev_random' to gen_key application
-   * Enable verification of the keyUsage extension for CA and leaf
-     certificates (POLARSSL_X509_CHECK_KEY_USAGE)
-   * Enable verification of the extendedKeyUsage extension
-     (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
-
-Changes
-   * x509_crt_info() now prints information about parsed extensions as well
-   * pk_verify() now returns a specific error code when the signature is valid
-     but shorter than the supplied length.
-   * Use UTC time to check certificate validity.
-   * Reject certificates with times not in UTC, per RFC 5280.
-
-Security
-   * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
-     (Found by Watson Ladd.)
-   * The notAfter date of some certificates was no longer checked since 1.3.5.
-     This affects certificates in the user-supplied chain except the top
-     certificate. If the user-supplied chain contains only one certificates,
-     it is not affected (ie, its notAfter date is properly checked).
-   * Prevent potential NULL pointer dereference in ssl_read_record() (found by
-     TrustInSoft)
-
-Bugfix
-   * The length of various ClientKeyExchange messages was not properly checked.
-   * Some example server programs were not sending the close_notify alert.
-   * Potential memory leak in mpi_exp_mod() when error occurs during
-     calculation of RR.
-   * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
-   * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
-     Gergely Budai).
-   * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
-     (found by Gergely Budai)
-   * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
-     Shuo Chen).
-   * oid_get_numeric_string() used to truncate the output without returning an
-     error if the output buffer was just 1 byte too small.
-   * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
-   * Calling pk_debug() on an RSA-alt key would segfault.
-   * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
-   * Potential buffer overwrite in pem_write_buffer() because of low length
-     indication (found by Thijs Alkemade)
-   * EC curves constants, which should be only in ROM since 1.3.3, were also
-     stored in RAM due to missing 'const's (found by Gergely Budai).
-
-= PolarSSL 1.3.5 released on 2014-03-26
-Features
-   * HMAC-DRBG as a separate module
-   * Option to set the Curve preference order (disabled by default)
-   * Single Platform compatilibity layer (for memory / printf / fprintf)
-   * Ability to provide alternate timing implementation
-   * Ability to force the entropy module to use SHA-256 as its basis
-     (POLARSSL_ENTROPY_FORCE_SHA256)
-   * Testing script ssl-opt.sh added for testing 'live' ssl option
-     interoperability against OpenSSL and PolarSSL
-   * Support for reading EC keys that use SpecifiedECDomain in some cases.
-   * Entropy module now supports seed writing and reading
-
-Changes
-   * Deprecated the Memory layer
-   * entropy_add_source(), entropy_update_manual() and entropy_gather()
-     now thread-safe if POLARSSL_THREADING_C defined
-   * Improvements to the CMake build system, contributed by Julian Ospald.
-   * Work around a bug of the version of Clang shipped by Apple with Mavericks
-     that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
-   * Revamped the compat.sh interoperatibility script to include support for
-     testing against GnuTLS
-   * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
-   * Improvements to tests/Makefile, contributed by Oden Eriksson.
-
-Security
-   * Forbid change of server certificate during renegotiation to prevent
-     "triple handshake" attack when authentication mode is 'optional' (the
-     attack was already impossible when authentication is required).
-   * Check notBefore timestamp of certificates and CRLs from the future.
-   * Forbid sequence number wrapping
-   * Fixed possible buffer overflow with overlong PSK
-   * Possible remotely-triggered out-of-bounds memory access fixed (found by
-     TrustInSoft)
-
-Bugfix
-   * ecp_gen_keypair() does more tries to prevent failure because of
-     statistics
-   * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
-   * Fixed testing with out-of-source builds using cmake
-   * Fixed version-major intolerance in server
-   * Fixed CMake symlinking on out-of-source builds
-   * Fixed dependency issues in test suite
-   * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
-   * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
-     Alex Wilson.)
-   * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
-   * m_sleep() was sleeping twice too long on most Unix platforms.
-   * Fixed bug with session tickets and non-blocking I/O in the unlikely case
-     send() would return an EAGAIN error when sending the ticket.
-   * ssl_cache was leaking memory when reusing a timed out entry containing a
-     client certificate.
-   * ssl_srv was leaking memory when client presented a timed out ticket
-     containing a client certificate
-   * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
-     out_ctr failed
-   * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
-     of one of them failed
-   * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
-   * x509_get_current_time() uses localtime_r() to prevent thread issues
-
-= PolarSSL 1.3.4 released on 2014-01-27
-Features
-   * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
-   * Support for RIPEMD-160
-   * Support for AES CFB8 mode
-   * Support for deterministic ECDSA (RFC 6979)
-
-Bugfix
-   * Potential memory leak in bignum_selftest()
-   * Replaced expired test certificate
-   * ssl_mail_client now terminates lines with CRLF, instead of LF
-   * net module handles timeouts on blocking sockets better (found by Tilman
-     Sauerbeck)
-   * Assembly format fixes in bn_mul.h
-
-Security
-   * Missing MPI_CHK calls added around unguarded mpi calls (found by
-     TrustInSoft)
-
-= PolarSSL 1.3.3 released on 2013-12-31
-Features
-   * EC key generation support in gen_key app
-   * Support for adhering to client ciphersuite order preference
-     (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
-   * Support for Curve25519
-   * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
-   * Support for IPv6 in the NET module
-   * AES-NI support for AES, AES-GCM and AES key scheduling
-   * SSL Pthread-based server example added (ssl_pthread_server)
-
-Changes
-   * gen_prime() speedup
-   * Speedup of ECP multiplication operation
-   * Relaxed some SHA2 ciphersuite's version requirements
-   * Dropped use of readdir_r() instead of readdir() with threading support
-   * More constant-time checks in the RSA module
-   * Split off curves from ecp.c into ecp_curves.c
-   * Curves are now stored fully in ROM
-   * Memory usage optimizations in ECP module
-   * Removed POLARSSL_THREADING_DUMMY
-
-Bugfix
-   * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
-   * Fixed X.509 hostname comparison (with non-regular characters)
-   * SSL now gracefully handles missing RNG
-   * Missing defines / cases for RSA_PSK key exchange
-   * crypt_and_hash app checks MAC before final decryption
-   * Potential memory leak in ssl_ticket_keys_init()
-   * Memory leak in benchmark application
-   * Fixed x509_crt_parse_path() bug on Windows platforms
-   * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
-     TrustInSoft)
-   * Fixed potential overflow in certificate size verification in
-     ssl_write_certificate() (found by TrustInSoft)
-
-Security
-   * Possible remotely-triggered out-of-bounds memory access fixed (found by
-     TrustInSoft)
-
-= PolarSSL 1.3.2 released on 2013-11-04
-Features
-   * PK tests added to test framework
-   * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
-   * Support for Camellia-GCM mode and ciphersuites
-
-Changes
-   * Padding checks in cipher layer are now constant-time
-   * Value comparisons in SSL layer are now constant-time
-   * Support for serialNumber, postalAddress and postalCode in X509 names
-   * SSL Renegotiation was refactored
-
-Bugfix
-   * More stringent checks in cipher layer
-   * Server does not send out extensions not advertised by client
-   * Prevent possible alignment warnings on casting from char * to 'aligned *'
-   * Misc fixes and additions to dependency checks
-   * Const correctness
-   * cert_write with selfsign should use issuer_name as subject_name
-   * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
-   * Defines to handle UEFI environment under MSVC
-   * Server-side initiated renegotiations send HelloRequest
-
-= PolarSSL 1.3.1 released on 2013-10-15
-Features
-   * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
-   * Support for ECDHE-PSK key-exchange and ciphersuites
-   * Support for RSA-PSK key-exchange and ciphersuites
-
-Changes
-   * RSA blinding locks for a smaller amount of time
-   * TLS compression only allocates working buffer once
-   * Introduced POLARSSL_HAVE_READDIR_R for systems without it
-   * config.h is more script-friendly
-
-Bugfix
-   * Missing MSVC defines added
-   * Compile errors with POLARSSL_RSA_NO_CRT
-   * Header files with 'polarssl/'
-   * Const correctness
-   * Possible naming collision in dhm_context
-   * Better support for MSVC
-   * threading_set_alt() name
-   * Added missing x509write_crt_set_version()
-
-= PolarSSL 1.3.0 released on 2013-10-01
-Features
-   * Elliptic Curve Cryptography module added
-   * Elliptic Curve Diffie Hellman module added
-   * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
-    (ECDHE-based ciphersuites)
-   * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
-    (ECDSA-based ciphersuites)
-   * Ability to specify allowed ciphersuites based on the protocol version.
-   * PSK and DHE-PSK based ciphersuites added
-   * Memory allocation abstraction layer added
-   * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
-   * Threading abstraction layer added (dummy / pthread / alternate)
-   * Public Key abstraction layer added
-   * Parsing Elliptic Curve keys
-   * Parsing Elliptic Curve certificates
-   * Support for max_fragment_length extension (RFC 6066)
-   * Support for truncated_hmac extension (RFC 6066)
-   * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
-     (ISO/IEC 7816-4) padding and zero padding in the cipher layer
-   * Support for session tickets (RFC 5077)
-   * Certificate Request (CSR) generation with extensions (key_usage,
-     ns_cert_type)
-   * X509 Certificate writing with extensions (basic_constraints,
-     issuer_key_identifier, etc)
-   * Optional blinding for RSA, DHM and EC
-   * Support for multiple active certificate / key pairs in SSL servers for
-     the same host (Not to be confused with SNI!)
-
-Changes
-   * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
-     individually
-   * Introduced separate SSL Ciphersuites module that is based on
-     Cipher and MD information
-   * Internals for SSL module adapted to have separate IV pointer that is
-     dynamically set (Better support for hardware acceleration)
-   * Moved all OID functionality to a separate module. RSA function
-     prototypes for the RSA sign and verify functions changed as a result
-   * Split up the GCM module into a starts/update/finish cycle
-   * Client and server now filter sent and accepted ciphersuites on minimum
-     and maximum protocol version
-   * Ability to disable server_name extension (RFC 6066)
-   * Renamed error_strerror() to the less conflicting polarssl_strerror()
-     (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
-   * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
-   * All RSA operations require a random generator for blinding purposes
-   * X509 core refactored
-   * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
-   * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
-   * Support faulty X509 v1 certificates with extensions
-     (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
-
-Bugfix
-   * Fixed parse error in ssl_parse_certificate_request()
-   * zlib compression/decompression skipped on empty blocks
-   * Support for AIX header locations in net.c module
-   * Fixed file descriptor leaks
-
-Security
-   * RSA blinding on CRT operations to counter timing attacks
-     (found by Cyril Arnaud and Pierre-Alain Fouque)
-
-
-= Version 1.2.14 released 2015-05-??
-
-Security
-   * Fix potential invalid memory read in the server, that allows a client to
-     crash it remotely (found by Caj Larsson).
-   * Fix potential invalid memory read in certificate parsing, that allows a
-     client to crash the server remotely if client authentication is enabled
-     (found using Codenomicon Defensics).
-   * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
-     https://dl.acm.org/citation.cfm?id=2714625
-
-Bugfix
-   * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
-   * Fix hardclock() (only used in the benchmarking program) with some
-     versions of mingw64 (found by kxjhlele).
-   * Fix warnings from mingw64 in timing.c (found by kxjklele).
-   * Fix potential unintended sign extension in asn1_get_len() on 64-bit
-     platforms (found with Coverity Scan).
-
-= Version 1.2.13 released 2015-02-16
-Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
-      this will be made in the 1.2 branch at this point.
-
-Security
-   * Fix remotely-triggerable uninitialised pointer dereference caused by
-     crafted X.509 certificate (TLS server is not affected if it doesn't ask
-     for a client certificate) (found using Codenomicon Defensics).
-   * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
-     (TLS server is not affected if it doesn't ask for a client certificate)
-     (found using Codenomicon Defensics).
-   * Fix potential stack overflow while parsing crafted X.509 certificates
-     (TLS server is not affected if it doesn't ask for a client certificate)
-     found using Codenomicon Defensics).
-   * Fix buffer overread of size 1 when parsing crafted X.509 certificates
-     (TLS server is not affected if it doesn't ask for a client certificate).
-
-Bugfix
-   * Fix potential undefined behaviour in Camellia.
-   * Fix memory leaks in PKCS#5 and PKCS#12.
-   * Stack buffer overflow if ctr_drbg_update() is called with too large
-     add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
-   * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
-     in 1.2.12).
-   * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
-     Peter Vaskovic).
-   * Fix assembly selection for MIPS64 (thanks to James Cowgill).
-   * ssl_get_verify_result() now works even if the handshake was aborted due
-     to a failed verification (found by Fredrik Axelsson).
-   * Skip writing and parsing signature_algorithm extension if none of the
-     key exchanges enabled needs certificates. This fixes a possible interop
-     issue with some servers when a zero-length extension was sent. (Reported
-     by Peter Dettman.)
-   * On a 0-length input, base64_encode() did not correctly set output length
-     (found by Hendrik van den Boogaard).
-
-Changes
-   * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
-   * Forbid repeated extensions in X.509 certificates.
-   * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
-     length of an X.509 verification chain (default = 8).
-= Version 1.2.12 released 2014-10-24
-
-Security
-   * Remotely-triggerable memory leak when parsing some X.509 certificates
-     (server is not affected if it doesn't ask for a client certificate).
-     (Found using Codenomicon Defensics.)
-
-Bugfix
-   * Fix potential bad read in parsing ServerHello (found by Adrien
-     Vialletelle).
-   * ssl_close_notify() could send more than one message in some circumstances
-     with non-blocking I/O.
-   * x509_crt_parse() did not increase total_failed on PEM error
-   * Fix compiler warnings on iOS (found by Sander Niemeijer).
-   * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
-   * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
-   * ssl_read() could return non-application data records on server while
-     renegotation was pending, and on client when a HelloRequest was received.
-   * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
-
-Changes
-   * X.509 certificates with more than one AttributeTypeAndValue per
-     RelativeDistinguishedName are not accepted any more.
-   * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
-     POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
-   * Accept spaces at end of line or end of buffer in base64_decode().
-
-= Version 1.2.11 released 2014-07-11
-Features
-   * Entropy module now supports seed writing and reading
-
-Changes
-   * Introduced POLARSSL_HAVE_READDIR_R for systems without it
-   * Improvements to the CMake build system, contributed by Julian Ospald.
-   * Work around a bug of the version of Clang shipped by Apple with Mavericks
-     that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
-   * Improvements to tests/Makefile, contributed by Oden Eriksson.
-   * Use UTC time to check certificate validity.
-   * Reject certificates with times not in UTC, per RFC 5280.
-   * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
-     against unwanted compiler optimizations
-
-Security
-   * Forbid change of server certificate during renegotiation to prevent
-     "triple handshake" attack when authentication mode is optional (the
-     attack was already impossible when authentication is required).
-   * Check notBefore timestamp of certificates and CRLs from the future.
-   * Forbid sequence number wrapping
-   * Prevent potential NULL pointer dereference in ssl_read_record() (found by
-     TrustInSoft)
-   * Fix length checking for AEAD ciphersuites (found by Codenomicon).
-     It was possible to crash the server (and client) using crafted messages
-     when a GCM suite was chosen.
-
-Bugfix
-   * Fixed X.509 hostname comparison (with non-regular characters)
-   * SSL now gracefully handles missing RNG
-   * crypt_and_hash app checks MAC before final decryption
-   * Fixed x509_crt_parse_path() bug on Windows platforms
-   * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
-     TrustInSoft)
-   * Fixed potential overflow in certificate size verification in
-     ssl_write_certificate() (found by TrustInSoft)
-   * Fix ASM format in bn_mul.h
-   * Potential memory leak in bignum_selftest()
-   * Replaced expired test certificate
-   * ssl_mail_client now terminates lines with CRLF, instead of LF
-   * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
-   * Fixed testing with out-of-source builds using cmake
-   * Fixed version-major intolerance in server
-   * Fixed CMake symlinking on out-of-source builds
-   * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
-     Alex Wilson.)
-   * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
-     out_ctr failed
-   * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
-     of one of them failed
-   * x509_get_current_time() uses localtime_r() to prevent thread issues
-   * Some example server programs were not sending the close_notify alert.
-   * Potential memory leak in mpi_exp_mod() when error occurs during
-     calculation of RR.
-   * Improve interoperability by not writing extension length in ClientHello
-     when no extensions are present (found by Matthew Page)
-   * rsa_check_pubkey() now allows an E up to N
-   * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
-   * mpi_fill_random() was creating numbers larger than requested on
-     big-endian platform when size was not an integer number of limbs
-   * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
-   * Stricter check on SSL ClientHello internal sizes compared to actual packet
-     size (found by TrustInSoft)
-   * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
-   * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
-     interpret semicolons as comment delimiters (found by Barry K. Nathan).
-   * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
-   * Fix base64_decode() to return and check length correctly (in case of
-     tight buffers)
-
-= Version 1.2.10 released 2013-10-07
-Changes
-   * Changed RSA blinding to a slower but thread-safe version
-
-Bugfix
-   * Fixed memory leak in RSA as a result of introduction of blinding
-   * Fixed ssl_pkcs11_decrypt() prototype
-   * Fixed MSVC project files
-
-= Version 1.2.9 released 2013-10-01
-Changes
-   * x509_verify() now case insensitive for cn (RFC 6125 6.4)
-
-Bugfix
-   * Fixed potential memory leak when failing to resume a session
-   * Fixed potential file descriptor leaks (found by Remi Gacogne)
-   * Minor fixes
-
-Security
-   * Fixed potential heap buffer overflow on large hostname setting
-   * Fixed potential negative value misinterpretation in load_file()
-   * RSA blinding on CRT operations to counter timing attacks
-     (found by Cyril Arnaud and Pierre-Alain Fouque)
-
-= Version 1.2.8 released 2013-06-19
-Features
-   * Parsing of PKCS#8 encrypted private key files
-   * PKCS#12 PBE and derivation functions
-   * Centralized module option values in config.h to allow user-defined
-     settings without editing header files by using POLARSSL_CONFIG_OPTIONS
-
-Changes
-   * HAVEGE random generator disabled by default
-   * Internally split up x509parse_key() into a (PEM) handler function
-     and specific DER parser functions for the PKCS#1 and unencrypted
-     PKCS#8 private key formats
-   * Added mechanism to provide alternative implementations for all
-     symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
-     config.h)
-   * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
-     old PBKDF2 module
-
-Bugfix
-   * Secure renegotiation extension should only be sent in case client
-     supports secure renegotiation
-   * Fixed offset for cert_type list in ssl_parse_certificate_request()
-   * Fixed const correctness issues that have no impact on the ABI
-   * x509parse_crt() now better handles PEM error situations
-   * ssl_parse_certificate() now calls x509parse_crt_der() directly
-     instead of the x509parse_crt() wrapper that can also parse PEM
-     certificates
-   * x509parse_crtpath() is now reentrant and uses more portable stat()
-   * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
-   * Fixed values for 2-key Triple DES in cipher layer
-   * ssl_write_certificate_request() can handle empty ca_chain
-
-Security
-   * A possible DoS during the SSL Handshake, due to faulty parsing of
-     PEM-encoded certificates has been fixed (found by Jack Lloyd)
-
-= Version 1.2.7 released 2013-04-13
-Features
-   * Ability to specify allowed ciphersuites based on the protocol version.
-
-Changes
-   * Default Blowfish keysize is now 128-bits
-   * Test suites made smaller to accommodate Raspberry Pi
-
-Bugfix
-   * Fix for MPI assembly for ARM
-   * GCM adapted to support sizes > 2^29
-
-= Version 1.2.6 released 2013-03-11
-Bugfix
-   * Fixed memory leak in ssl_free() and ssl_reset() for active session
-   * Corrected GCM counter incrementation to use only 32-bits instead of
-     128-bits (found by Yawning Angel)
-   * Fixes for 64-bit compilation with MS Visual Studio
-   * Fixed net_bind() for specified IP addresses on little endian systems
-   * Fixed assembly code for ARM (Thumb and regular) for some compilers
-
-Changes
-   * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
-     rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
-     PKCS#1 v2.1 functions
-   * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
-     or rsa_rsaes_oaep_decrypt()
-   * Re-added handling for SSLv2 Client Hello when the define
-     POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
-   * The SSL session cache module (ssl_cache) now also retains peer_cert
-     information (not the entire chain)
-
-Security
-   * Removed further timing differences during SSL message decryption in
-     ssl_decrypt_buf()
-   * Removed timing differences due to bad padding from
-     rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
-     operations
-
-= Version 1.2.5 released 2013-02-02
-Changes
-   * Allow enabling of dummy error_strerror() to support some use-cases
-   * Debug messages about padding errors during SSL message decryption are
-     disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
-   * Sending of security-relevant alert messages that do not break
-     interoperability can be switched on/off with the flag
-     POLARSSL_SSL_ALL_ALERT_MESSAGES
-
-Security
-   * Removed timing differences during SSL message decryption in
-     ssl_decrypt_buf() due to badly formatted padding
-
-= Version 1.2.4 released 2013-01-25
-Changes
-   * More advanced SSL ciphersuite representation and moved to more dynamic
-     SSL core
-   * Added ssl_handshake_step() to allow single stepping the handshake process
-
-Bugfix
-   * Memory leak when using RSA_PKCS_V21 operations fixed
-   * Handle future version properly in ssl_write_certificate_request()
-   * Correctly handle CertificateRequest message in client for <= TLS 1.1
-     without DN list
-
-= Version 1.2.3 released 2012-11-26
-Bugfix
-   * Server not always sending correct CertificateRequest message
-
-= Version 1.2.2 released 2012-11-24
-Changes
-   * Added p_hw_data to ssl_context for context specific hardware acceleration
-     data
-   * During verify trust-CA is only checked for expiration and CRL presence
-
-Bugfixes
-   * Fixed client authentication compatibility
-   * Fixed dependency on POLARSSL_SHA4_C in SSL modules
-
-= Version 1.2.1 released 2012-11-20
-Changes
-   * Depth that the certificate verify callback receives is now numbered
-     bottom-up (Peer cert depth is 0)
-
-Bugfixes
-   * Fixes for MSVC6
-   * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
-   * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
-     Pégourié-Gonnard)
-   * Fixed possible segfault in mpi_shift_r() (found by Manuel
-     Pégourié-Gonnard)
-   * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
-
-= Version 1.2.0 released 2012-10-31
-Features
-   * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
-     ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
-     default!
-   * Added support for wildcard certificates
-   * Added support for multi-domain certificates through the X509 Subject
-     Alternative Name extension
-   * Added preliminary ASN.1 buffer writing support
-   * Added preliminary X509 Certificate Request writing support
-   * Added key_app_writer example application
-   * Added cert_req example application
-   * Added base Galois Counter Mode (GCM) for AES
-   * Added TLS 1.2 support (RFC 5246)
-   * Added GCM suites to TLS 1.2 (RFC 5288)
-   * Added commandline error code convertor (util/strerror)
-   * Added support for Hardware Acceleration hooking in SSL/TLS
-   * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
-     example application (programs/ssl/o_p_test) (requires OpenSSL)
-   * Added X509 CA Path support
-   * Added Thumb assembly optimizations
-   * Added DEFLATE compression support as per RFC3749 (requires zlib)
-   * Added blowfish algorithm (Generic and cipher layer)
-   * Added PKCS#5 PBKDF2 key derivation function
-   * Added Secure Renegotiation (RFC 5746)
-   * Added predefined DHM groups from RFC 5114
-   * Added simple SSL session cache implementation
-   * Added ServerName extension parsing (SNI) at server side
-   * Added option to add minimum accepted SSL/TLS protocol version
-
-Changes
-   * Removed redundant POLARSSL_DEBUG_MSG define
-   * AES code only check for Padlock once
-   * Fixed const-correctness mpi_get_bit()
-   * Documentation for mpi_lsb() and mpi_msb()
-   * Moved out_msg to out_hdr + 32 to support hardware acceleration
-   * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
-     to not match CN if subjectAltName extension is present (Closes ticket #56)
-   * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
-     POLARSSL_MODE_CFB, to also handle different block size CFB modes.
-   * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
-   * Revamped session resumption handling
-   * Generalized external private key implementation handling (like PKCS#11)
-     in SSL/TLS
-   * Revamped x509_verify() and the SSL f_vrfy callback implementations
-   * Moved from unsigned long to fixed width uint32_t types throughout code
-   * Renamed ciphersuites naming scheme to IANA reserved names
-
-Bugfix
-   * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
-     Hui Dong)
-   * Fixed potential heap corruption in x509_name allocation
-   * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
-   * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
-     #52)
-   * Handle encryption with private key and decryption with public key as per
-     RFC 2313
-   * Handle empty certificate subject names
-   * Prevent reading over buffer boundaries on X509 certificate parsing
-   * mpi_add_abs() now correctly handles adding short numbers to long numbers
-     with carry rollover (found by Ruslan Yushchenko)
-   * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
-   * Fixed MPI assembly for SPARC64 platform
-
-Security
-   * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
-     Vanderbeken)
-
-= Version 1.1.8 released on 2013-10-01
-Bugfix
-   * Fixed potential memory leak when failing to resume a session
-   * Fixed potential file descriptor leaks
-
-Security
-   * Potential buffer-overflow for ssl_read_record() (independently found by
-     both TrustInSoft and Paul Brodeur of Leviathan Security Group)
-   * Potential negative value misinterpretation in load_file()
-   * Potential heap buffer overflow on large hostname setting
-
-= Version 1.1.7 released on 2013-06-19
-Changes
-   * HAVEGE random generator disabled by default
-
-Bugfix
-   * x509parse_crt() now better handles PEM error situations
-   * ssl_parse_certificate() now calls x509parse_crt_der() directly
-     instead of the x509parse_crt() wrapper that can also parse PEM
-     certificates
-   * Fixed values for 2-key Triple DES in cipher layer
-   * ssl_write_certificate_request() can handle empty ca_chain
-
-Security
-   * A possible DoS during the SSL Handshake, due to faulty parsing of
-     PEM-encoded certificates has been fixed (found by Jack Lloyd)
-
-= Version 1.1.6 released on 2013-03-11
-Bugfix
-   * Fixed net_bind() for specified IP addresses on little endian systems
-
-Changes
-   * Allow enabling of dummy error_strerror() to support some use-cases
-   * Debug messages about padding errors during SSL message decryption are
-     disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
-
-Security
-   * Removed timing differences during SSL message decryption in
-     ssl_decrypt_buf()
-   * Removed timing differences due to bad padding from
-     rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
-     operations
-
-= Version 1.1.5 released on 2013-01-16
-Bugfix
-   * Fixed MPI assembly for SPARC64 platform
-   * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
-   * mpi_add_abs() now correctly handles adding short numbers to long numbers
-     with carry rollover
-   * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
-   * Prevent reading over buffer boundaries on X509 certificate parsing
-   * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
-     #52)
-   * Fixed possible segfault in mpi_shift_r() (found by Manuel
-     Pégourié-Gonnard)
-   * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
-     Pégourié-Gonnard)
-   * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
-   * Memory leak when using RSA_PKCS_V21 operations fixed
-   * Handle encryption with private key and decryption with public key as per
-     RFC 2313
-   * Fixes for MSVC6
-
-Security
-   * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
-     Vanderbeken)
-
-= Version 1.1.4 released on 2012-05-31
-Bugfix
-   * Correctly handle empty SSL/TLS packets (Found by James Yonan)
-   * Fixed potential heap corruption in x509_name allocation
-   * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
-
-= Version 1.1.3 released on 2012-04-29
-Bugfix
-   * Fixed random MPI generation to not generate more size than requested.
-
-= Version 1.1.2 released on 2012-04-26
-Bugfix
-   * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
-     Hui Dong)
-
-Security
-   * Fixed potential memory corruption on miscrafted client messages (found by
-     Frama-C team at CEA LIST)
-   * Fixed generation of DHM parameters to correct length (found by Ruslan
-     Yushchenko)
-
-= Version 1.1.1 released on 2012-01-23
-Bugfix
-   * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
-     (Closes ticket #47, found by Hugo Leisink)
-   * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
-   * Fixed multiple compiler warnings for VS6 and armcc
-   * Fixed bug in CTR_CRBG selftest
-
-= Version 1.1.0 released on 2011-12-22
-Features
-   * Added ssl_session_reset() to allow better multi-connection pools of
-     SSL contexts without needing to set all non-connection-specific
-     data and pointers again. Adapted ssl_server to use this functionality.
-   * Added ssl_set_max_version() to allow clients to offer a lower maximum
-     supported version to a server to help buggy server implementations.
-     (Closes ticket #36)
-   * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
-     introspection functions (Closes ticket #40)
-   * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
-   * Added a generic entropy accumulator that provides support for adding
-     custom entropy sources and added some generic and platform dependent
-     entropy sources
-
-Changes
-   * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
-   * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
-     encryption and private key for decryption. (Closes ticket #34)
-   * Inceased maximum size of ASN1 length reads to 32-bits.
-   * Added an EXPLICIT tag number parameter to x509_get_ext()
-   * Added a separate CRL entry extension parsing function
-   * Separated the ASN.1 parsing code from the X.509 specific parsing code.
-     So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
-   * Changed the defined key-length of DES ciphers in cipher.h to include the
-     parity bits, to prevent mistakes in copying data. (Closes ticket #33)
-   * Loads of minimal changes to better support WINCE as a build target
-     (Credits go to Marco Lizza)
-   * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
-     trade-off
-   * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
-     management (Closes ticket #44)
-   * Changed the used random function pointer to more flexible format. Renamed
-     havege_rand() to havege_random() to prevent mistakes. Lots of changes as
-     a consequence in library code and programs
-   * Moved all examples programs to use the new entropy and CTR_DRBG
-   * Added permissive certificate parsing to x509parse_crt() and
-     x509parse_crtfile(). With permissive parsing the parsing does not stop on
-     encountering a parse-error. Beware that the meaning of return values has
-     changed!
-   * All error codes are now negative. Even on mermory failures and IO errors.
-
-Bugfix
-   * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
-     ticket #37)
-   * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
-     before version numbers
-   * Allowed X509 key usage parsing to accept 4 byte values instead of the
-     standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
-   * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
-     smaller than the hash length. (Closes ticket #41)
-   * If certificate serial is longer than 32 octets, serial number is now
-     appended with '....' after first 28 octets
-   * Improved build support for s390x and sparc64 in bignum.h
-   * Fixed MS Visual C++ name clash with int64 in sha4.h
-   * Corrected removal of leading "00:" in printing serial numbers in
-     certificates and CRLs
-
-= Version 1.0.0 released on 2011-07-27
-Features
-   * Expanded cipher layer with support for CFB128 and CTR mode
-   * Added rsa_encrypt and rsa_decrypt simple example programs.
-
-Changes
-   * The generic cipher and message digest layer now have normal error
-     codes instead of integers
-
-Bugfix
-   * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
-     #18)
-
-= Version 0.99-pre5 released on 2011-05-26
-Features
-   * Added additional Cipher Block Modes to symmetric ciphers
-     (AES CTR, Camellia CTR, XTEA CBC) including the option to
-     enable and disable individual modes when needed
-   * Functions requiring File System functions can now be disabled
-     by undefining POLARSSL_FS_IO
-   * A error_strerror function() has been added to translate between
-     error codes and their description.
-   * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
-     functions.
-   * Added ssl_mail_client and ssl_fork_server as example programs.
-
-Changes
-   * Major argument / variable rewrite. Introduced use of size_t
-     instead of int for buffer lengths and loop variables for
-     better unsigned / signed use. Renamed internal bigint types
-     t_int and t_dbl to t_uint and t_udbl in the process
-   * mpi_init() and mpi_free() now only accept a single MPI
-     argument and do not accept variable argument lists anymore.
-   * The error codes have been remapped and combining error codes
-     is now done with a PLUS instead of an OR as error codes
-     used are negative.
-   * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
-     net_recv() now returns 0 on EOF instead of
-     POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
-     POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
-     ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
-     after the handshake.
-   * Network functions now return POLARSSL_ERR_NET_WANT_READ or
-     POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
-     POLARSSL_ERR_NET_TRY_AGAIN
-
-= Version 0.99-pre4 released on 2011-04-01
-Features
-   * Added support for PKCS#1 v2.1 encoding and thus support
-     for the RSAES-OAEP and RSASSA-PSS operations.
-   * Reading of Public Key files incorporated into default x509
-     functionality as well.
-   * Added mpi_fill_random() for centralized filling of big numbers
-     with random data (Fixed ticket #10)
-
-Changes
-   * Debug print of MPI now removes leading zero octets and
-     displays actual bit size of the value.
-   * x509parse_key() (and as a consequence x509parse_keyfile())
-     does not zeroize memory in advance anymore. Use rsa_init()
-     before parsing a key or keyfile!
-
-Bugfix
-   * Debug output of MPI's now the same independent of underlying
-     platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
-     Kiilerich and Mihai Militaru)
-   * Fixed bug in ssl_write() when flushing old data (Fixed ticket
-     #18, found by Nikolay Epifanov)
-   * Fixed proper handling of RSASSA-PSS verification with variable
-     length salt lengths
-
-= Version 0.99-pre3 released on 2011-02-28
-This release replaces version 0.99-pre2 which had possible copyright issues.
-Features
-   * Parsing PEM private keys encrypted with DES and AES
-     are now supported as well (Fixes ticket #5)
-   * Added crl_app program to allow easy reading and
-     printing of X509 CRLs from file
-
-Changes
-   * Parsing of PEM files moved to separate module (Fixes
-     ticket #13). Also possible to remove PEM support for
-     systems only using DER encoding
-
-Bugfixes
-   * Corrected parsing of UTCTime dates before 1990 and
-     after 1950
-   * Support more exotic OID's when parsing certificates
-     (found by Mads Kiilerich)
-   * Support more exotic name representations when parsing
-     certificates (found by Mads Kiilerich)
-   * Replaced the expired test certificates
-   * Do not bail out if no client certificate specified. Try
-     to negotiate anonymous connection (Fixes ticket #12,
-     found by Boris Krasnovskiy)
-
-Security fixes
-   * Fixed a possible Man-in-the-Middle attack on the
-     Diffie Hellman key exchange (thanks to Larry Highsmith,
-     Subreption LLC)
-
-= Version 0.99-pre1 released on 2011-01-30
-Features
-Note: Most of these features have been donated by Fox-IT
-   * Added Doxygen source code documentation parts
-   * Added reading of DHM context from memory and file
-   * Improved X509 certificate parsing to include extended
-     certificate fields, including Key Usage
-   * Improved certificate verification and verification
-     against the available CRLs
-   * Detection for DES weak keys and parity bits added
-   * Improvements to support integration in other
-     applications:
-       + Added generic message digest and cipher wrapper
-       + Improved information about current capabilities,
-         status, objects and configuration
-       + Added verification callback on certificate chain
-         verification to allow external blacklisting
-       + Additional example programs to show usage
-   * Added support for PKCS#11 through the use of the
-     libpkcs11-helper library
-
-Changes
-   * x509parse_time_expired() checks time in addition to
-     the existing date check
-   * The ciphers member of ssl_context and the cipher member
-     of ssl_session have been renamed to ciphersuites and
-     ciphersuite respectively. This clarifies the difference
-     with the generic cipher layer and is better naming
-     altogether
-
-= Version 0.14.0 released on 2010-08-16
-Features
-   * Added support for SSL_EDH_RSA_AES_128_SHA and
-     SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
-   * Added compile-time and run-time version information
-   * Expanded ssl_client2 arguments for more flexibility
-   * Added support for TLS v1.1
-
-Changes
-   * Made Makefile cleaner
-   * Removed dependency on rand() in rsa_pkcs1_encrypt().
-     Now using random fuction provided to function and
-     changed the prototype of rsa_pkcs1_encrypt(),
-     rsa_init() and rsa_gen_key().
-   * Some SSL defines were renamed in order to avoid
-     future confusion
-
-Bug fixes
-   * Fixed CMake out of source build for tests (found by
-     kkert)
-   * rsa_check_private() now supports PKCS1v2 keys as well
-   * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
-     generator
-
-= Version 0.13.1 released on 2010-03-24
-Bug fixes
-   * Fixed Makefile in library that was mistakenly merged
-   * Added missing const string fixes
-
-= Version 0.13.0 released on 2010-03-21
-Features
-   * Added option parsing for host and port selection to
-     ssl_client2
-   * Added support for GeneralizedTime in X509 parsing
-   * Added cert_app program to allow easy reading and
-     printing of X509 certificates from file or SSL
-     connection.
-
-Changes
-   * Added const correctness for main code base
-   * X509 signature algorithm determination is now
-     in a function to allow easy future expansion
-   * Changed symmetric cipher functions to
-     identical interface (returning int result values)
-   * Changed ARC4 to use separate input/output buffer
-   * Added reset function for HMAC context as speed-up
-     for specific use-cases
-
-Bug fixes
-   * Fixed bug resulting in failure to send the last
-     certificate in the chain in ssl_write_certificate() and
-     ssl_write_certificate_request() (found by fatbob)
-   * Added small fixes for compiler warnings on a Mac
-     (found by Frank de Brabander)
-   * Fixed algorithmic bug in mpi_is_prime() (found by
-     Smbat Tonoyan)
-
-= Version 0.12.1 released on 2009-10-04
-Changes
-   * Coverage test definitions now support 'depends_on'
-     tagging system.
-   * Tests requiring specific hashing algorithms now honor
-     the defines.
-
-Bug fixes
-   * Changed typo in #ifdef in x509parse.c (found
-     by Eduardo)
-
-= Version 0.12.0 released on 2009-07-28
-Features
-   * Added CMake makefiles as alternative to regular Makefiles.
-   * Added preliminary Code Coverage tests for AES, ARC4,
-     Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
-     Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
-     and X509parse.
-
-Changes
-   * Error codes are not (necessarily) negative. Keep
-     this is mind when checking for errors.
-   * RSA_RAW renamed to SIG_RSA_RAW for consistency.
-   * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
-   * Changed interface for AES and Camellia setkey functions
-     to indicate invalid key lengths.
-
-Bug fixes
-   * Fixed include location of endian.h on FreeBSD (found by
-     Gabriel)
-   * Fixed include location of endian.h and name clash on
-     Apples (found by Martin van Hensbergen)
-   * Fixed HMAC-MD2 by modifying md2_starts(), so that the
-     required HMAC ipad and opad variables are not cleared.
-     (found by code coverage tests)
-   * Prevented use of long long in bignum if
-     POLARSSL_HAVE_LONGLONG not defined (found by Giles
-     Bathgate).
-   * Fixed incorrect handling of negative strings in
-     mpi_read_string() (found by code coverage tests).
-   * Fixed segfault on handling empty rsa_context in
-     rsa_check_pubkey() and rsa_check_privkey() (found by
-     code coverage tests).
-   * Fixed incorrect handling of one single negative input
-     value in mpi_add_abs() (found by code coverage tests).
-   * Fixed incorrect handling of negative first input
-     value in mpi_sub_abs() (found by code coverage tests).
-   * Fixed incorrect handling of negative first input
-     value in mpi_mod_mpi() and mpi_mod_int(). Resulting
-     change also affects mpi_write_string() (found by code
-     coverage tests).
-   * Corrected is_prime() results for 0, 1 and 2 (found by
-     code coverage tests).
-   * Fixed Camellia and XTEA for 64-bit Windows systems.
-
-= Version 0.11.1 released on 2009-05-17
-   * Fixed missing functionality for SHA-224, SHA-256, SHA384,
-     SHA-512 in rsa_pkcs1_sign()
-
-= Version 0.11.0 released on 2009-05-03
-   * Fixed a bug in mpi_gcd() so that it also works when both
-     input numbers are even and added testcases to check
-     (found by Pierre Habouzit).
-   * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
-     one way hash functions with the PKCS#1 v1.5 signing and
-     verification.
-   * Fixed minor bug regarding mpi_gcd located within the
-     POLARSSL_GENPRIME block.
-   * Fixed minor memory leak in x509parse_crt() and added better
-     handling of 'full' certificate chains (found by Mathias
-     Olsson).
-   * Centralized file opening and reading for x509 files into
-     load_file()
-   * Made definition of net_htons() endian-clean for big endian
-     systems (Found by Gernot).
-   * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
-     padlock and timing code.
-   * Fixed an off-by-one buffer allocation in ssl_set_hostname()
-     responsible for crashes and unwanted behaviour.
-   * Added support for Certificate Revocation List (CRL) parsing.
-   * Added support for CRL revocation to x509parse_verify() and
-     SSL/TLS code.
-   * Fixed compatibility of XTEA and Camellia on a 64-bit system
-     (found by Felix von Leitner).
-
-= Version 0.10.0 released on 2009-01-12
-   * Migrated XySSL to PolarSSL
-   * Added XTEA symmetric cipher
-   * Added Camellia symmetric cipher
-   * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
-     SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
-   * Fixed dangerous bug that can cause a heap overflow in
-     rsa_pkcs1_decrypt (found by Christophe Devine)
-
-================================================================
-XySSL ChangeLog
-
-= Version 0.9 released on 2008-03-16
-
-    * Added support for ciphersuite: SSL_RSA_AES_128_SHA
-    * Enabled support for large files by default in aescrypt2.c
-    * Preliminary openssl wrapper contributed by David Barrett
-    * Fixed a bug in ssl_write() that caused the same payload to
-      be sent twice in non-blocking mode when send returns EAGAIN
-    * Fixed ssl_parse_client_hello(): session id and challenge must
-      not be swapped in the SSLv2 ClientHello (found by Greg Robson)
-    * Added user-defined callback debug function (Krystian Kolodziej)
-    * Before freeing a certificate, properly zero out all cert. data
-    * Fixed the "mode" parameter so that encryption/decryption are
-      not swapped on PadLock; also fixed compilation on older versions
-      of gcc (bug reported by David Barrett)
-    * Correctly handle the case in padlock_xcryptcbc() when input or
-      output data is non-aligned by falling back to the software
-      implementation, as VIA Nehemiah cannot handle non-aligned buffers
-    * Fixed a memory leak in x509parse_crt() which was reported by Greg
-      Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
-      Matthew Page who reported several bugs
-    * Fixed x509_get_ext() to accept some rare certificates which have
-      an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
-    * Added support on the client side for the TLS "hostname" extension
-      (patch contributed by David Patino)
-    * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
-      string is passed as the CN (bug reported by spoofy)
-    * Added an option to enable/disable the BN assembly code
-    * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
-    * Disabled obsolete hash functions by default (MD2, MD4); updated
-      selftest and benchmark to not test ciphers that have been disabled
-    * Updated x509parse_cert_info() to correctly display byte 0 of the
-      serial number, setup correct server port in the ssl client example
-    * Fixed a critical denial-of-service with X.509 cert. verification:
-      peer may cause xyssl to loop indefinitely by sending a certificate
-      for which the RSA signature check fails (bug reported by Benoit)
-    * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
-      HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
-    * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
-    * Modified ssl_parse_client_key_exchange() to protect against
-      Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
-      as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
-    * Updated rsa_gen_key() so that ctx->N is always nbits in size
-    * Fixed assembly PPC compilation errors on Mac OS X, thanks to
-      David Barrett and Dusan Semen
-
-= Version 0.8 released on 2007-10-20
-
-    * Modified the HMAC functions to handle keys larger
-      than 64 bytes, thanks to Stephane Desneux and gary ng
-    * Fixed ssl_read_record() to properly update the handshake
-      message digests, which fixes IE6/IE7 client authentication
-    * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
-    * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
-    * Added user-defined callbacks for handling I/O and sessions
-    * Added lots of debugging output in the SSL/TLS functions
-    * Added preliminary X.509 cert. writing by Pascal Vizeli
-    * Added preliminary support for the VIA PadLock routines
-    * Added AES-CFB mode of operation, contributed by chmike
-    * Added an SSL/TLS stress testing program (ssl_test.c)
-    * Updated the RSA PKCS#1 code to allow choosing between
-      RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
-    * Updated ssl_read() to skip 0-length records from OpenSSL
-    * Fixed the make install target to comply with *BSD make
-    * Fixed a bug in mpi_read_binary() on 64-bit platforms
-    * mpi_is_prime() speedups, thanks to Kevin McLaughlin
-    * Fixed a long standing memory leak in mpi_is_prime()
-    * Replaced realloc with malloc in mpi_grow(), and set
-      the sign of zero as positive in mpi_init() (reported
-      by Jonathan M. McCune)
-
-= Version 0.7 released on 2007-07-07
-
-    * Added support for the MicroBlaze soft-core processor
-    * Fixed a bug in ssl_tls.c which sometimes prevented SSL
-      connections from being established with non-blocking I/O
-    * Fixed a couple bugs in the VS6 and UNIX Makefiles
-    * Fixed the "PIC register ebx clobbered in asm" bug
-    * Added HMAC starts/update/finish support functions
-    * Added the SHA-224, SHA-384 and SHA-512 hash functions
-    * Fixed the net_set_*block routines, thanks to Andreas
-    * Added a few demonstration programs: md5sum, sha1sum,
-      dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
-    * Added new bignum import and export helper functions
-    * Rewrote README.txt in program/ssl/ca to better explain
-      how to create a test PKI
-
-= Version 0.6 released on 2007-04-01
-
-    * Ciphers used in SSL/TLS can now be disabled at compile
-      time, to reduce the memory footprint on embedded systems
-    * Added multiply assembly code for the TriCore and modified
-      havege_struct for this processor, thanks to David Patiño
-    * Added multiply assembly code for 64-bit PowerPCs,
-      thanks to Peking University and the OSU Open Source Lab
-    * Added experimental support of Quantum Cryptography
-    * Added support for autoconf, contributed by Arnaud Cornet
-    * Fixed "long long" compilation issues on IA-64 and PPC64
-    * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
-      was not being correctly defined on ARM and MIPS
-
-= Version 0.5 released on 2007-03-01
-
-    * Added multiply assembly code for SPARC and Alpha
-    * Added (beta) support for non-blocking I/O operations
-    * Implemented session resuming and client authentication
-    * Fixed some portability issues on WinCE, MINIX 3, Plan9
-      (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
-    * Improved the performance of the EDH key exchange
-    * Fixed a bug that caused valid packets with a payload
-      size of 16384 bytes to be rejected
-
-= Version 0.4 released on 2007-02-01
-
-    * Added support for Ephemeral Diffie-Hellman key exchange
-    * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
-    * Various improvement to the modular exponentiation code
-    * Rewrote the headers to generate the API docs with doxygen
-    * Fixed a bug in ssl_encrypt_buf (incorrect padding was
-      generated) and in ssl_parse_client_hello (max. client
-      version was not properly set), thanks to Didier Rebeix
-    * Fixed another bug in ssl_parse_client_hello: clients with
-      cipherlists larger than 96 bytes were incorrectly rejected
-    * Fixed a couple memory leak in x509_read.c
-
-= Version 0.3 released on 2007-01-01
-
-    * Added server-side SSLv3 and TLSv1.0 support
-    * Multiple fixes to enhance the compatibility with g++,
-      thanks to Xosé Antón Otero Ferreira
-    * Fixed a bug in the CBC code, thanks to dowst; also,
-      the bignum code is no longer dependent on long long
-    * Updated rsa_pkcs1_sign to handle arbitrary large inputs
-    * Updated timing.c for improved compatibility with i386
-      and 486 processors, thanks to Arnaud Cornet
-
-= Version 0.2 released on 2006-12-01
-
-    * Updated timing.c to support ARM and MIPS arch
-    * Updated the MPI code to support 8086 on MSVC 1.5
-    * Added the copyright notice at the top of havege.h
-    * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
-    * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
-    * Fixed a bug reported by Torsten Lauter in ssl_read_record
-    * Fixed a bug in rsa_check_privkey that would wrongly cause
-      valid RSA keys to be dismissed (thanks to oldwolf)
-    * Fixed a bug in mpi_is_prime that caused some primes to fail
-      the Miller-Rabin primality test
-
-    I'd also like to thank Younès Hafri for the CRUX linux port,
-    Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
-    who maintains the Debian package :-)
-
-= Version 0.1 released on 2006-11-01
diff --git a/Makefile b/Makefile
index 12d3008..803615f 100644
--- a/Makefile
+++ b/Makefile
@@ -28,8 +28,6 @@
 	cp -rp include/psa $(DESTDIR)/include
 
 	mkdir -p $(DESTDIR)/lib
-	cp -RP library/libmbedtls.*    $(DESTDIR)/lib
-	cp -RP library/libmbedx509.*   $(DESTDIR)/lib
 	cp -RP library/libmbedcrypto.* $(DESTDIR)/lib
 
 	mkdir -p $(DESTDIR)/bin
@@ -43,8 +41,6 @@
 
 uninstall:
 	rm -rf $(DESTDIR)/include/mbedtls
-	rm -f $(DESTDIR)/lib/libmbedtls.*
-	rm -f $(DESTDIR)/lib/libmbedx509.*
 	rm -f $(DESTDIR)/lib/libmbedcrypto.*
 
 	for p in programs/*/* ; do              \
diff --git a/configs/README.txt b/configs/README.txt
index 933fa7f..17682dd 100644
--- a/configs/README.txt
+++ b/configs/README.txt
@@ -1,8 +1,8 @@
 This directory contains example configuration files.
 
 The examples are generally focused on a particular usage case (eg, support for
-a restricted number of ciphersuites) and aim at minimizing resource usage for
-this target. They can be used as a basis for custom configurations.
+a restricted number of TLS ciphersuites) and aim at minimizing resource usage
+for this target. They can be used as a basis for custom configurations.
 
 These files are complete replacements for the default config.h. To use one of
 them, you can pick one of the following methods:
diff --git a/configs/config-ccm-psk-tls1_2.h b/configs/config-ccm-psk-tls1_2.h
deleted file mode 100644
index c9b58dd..0000000
--- a/configs/config-ccm-psk-tls1_2.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/**
- * \file config-ccm-psk-tls1_2.h
- *
- * \brief Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- * Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
- * Distinguishing features:
- * - no bignum, no PK, no X509
- * - fully modern and secure (provided the pre-shared keys have high entropy)
- * - very low record overhead with CCM-8
- * - optimized for low RAM usage
- *
- * See README.txt for usage instructions.
- */
-#ifndef MBEDTLS_CONFIG_H
-#define MBEDTLS_CONFIG_H
-
-/* System support */
-//#define MBEDTLS_HAVE_TIME /* Optionally used in Hello messages */
-/* Other MBEDTLS_HAVE_XXX flags irrelevant for this configuration */
-
-/* mbed TLS feature support */
-#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
-#define MBEDTLS_SSL_PROTO_TLS1_2
-
-/* mbed TLS modules */
-#define MBEDTLS_AES_C
-#define MBEDTLS_CCM_C
-#define MBEDTLS_CIPHER_C
-#define MBEDTLS_CTR_DRBG_C
-#define MBEDTLS_ENTROPY_C
-#define MBEDTLS_MD_C
-#define MBEDTLS_NET_C
-#define MBEDTLS_SHA256_C
-#define MBEDTLS_SSL_CLI_C
-#define MBEDTLS_SSL_SRV_C
-#define MBEDTLS_SSL_TLS_C
-
-/* Save RAM at the expense of ROM */
-#define MBEDTLS_AES_ROM_TABLES
-
-/* Save some RAM by adjusting to your exact needs */
-#define MBEDTLS_PSK_MAX_LEN    16 /* 128-bits keys are generally enough */
-
-/*
- * You should adjust this to the exact number of sources you're using: default
- * is the "platform_entropy_poll" source, but you may want to add other ones
- * Minimum is 2 for the entropy test suite.
- */
-#define MBEDTLS_ENTROPY_MAX_SOURCES 2
-
-/*
- * Use only CCM_8 ciphersuites, and
- * save ROM and a few bytes of RAM by specifying our own ciphersuite list
- */
-#define MBEDTLS_SSL_CIPHERSUITES                        \
-        MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8,             \
-        MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8
-
-/*
- * Save RAM at the expense of interoperability: do this only if you control
- * both ends of the connection!  (See comments in "mbedtls/ssl.h".)
- * The optimal size here depends on the typical size of records.
- */
-#define MBEDTLS_SSL_MAX_CONTENT_LEN             1024
-
-#include "mbedtls/check_config.h"
-
-#endif /* MBEDTLS_CONFIG_H */
diff --git a/configs/config-default.h b/configs/config-default.h
deleted file mode 100644
index e6abf24..0000000
--- a/configs/config-default.h
+++ /dev/null
@@ -1,3377 +0,0 @@
-/**
- * \file config.h
- *
- * \brief Configuration options (set of defines)
- *
- *  This set of compile-time options may be used to enable
- *  or disable features selectively, and reduce the global
- *  memory footprint.
- */
-/*
- *  Copyright (C) 2006-2018, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#ifndef MBEDTLS_CONFIG_H
-#define MBEDTLS_CONFIG_H
-
-#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE)
-#define _CRT_SECURE_NO_DEPRECATE 1
-#endif
-
-/**
- * \name SECTION: System support
- *
- * This section sets system specific settings.
- * \{
- */
-
-/**
- * \def MBEDTLS_HAVE_ASM
- *
- * The compiler has support for asm().
- *
- * Requires support for asm() in compiler.
- *
- * Used in:
- *      library/aria.c
- *      library/timing.c
- *      include/mbedtls/bn_mul.h
- *
- * Required by:
- *      MBEDTLS_AESNI_C
- *      MBEDTLS_PADLOCK_C
- *
- * Comment to disable the use of assembly code.
- */
-#define MBEDTLS_HAVE_ASM
-
-/**
- * \def MBEDTLS_NO_UDBL_DIVISION
- *
- * The platform lacks support for double-width integer division (64-bit
- * division on a 32-bit platform, 128-bit division on a 64-bit platform).
- *
- * Used in:
- *      include/mbedtls/bignum.h
- *      library/bignum.c
- *
- * The bignum code uses double-width division to speed up some operations.
- * Double-width division is often implemented in software that needs to
- * be linked with the program. The presence of a double-width integer
- * type is usually detected automatically through preprocessor macros,
- * but the automatic detection cannot know whether the code needs to
- * and can be linked with an implementation of division for that type.
- * By default division is assumed to be usable if the type is present.
- * Uncomment this option to prevent the use of double-width division.
- *
- * Note that division for the native integer type is always required.
- * Furthermore, a 64-bit type is always required even on a 32-bit
- * platform, but it need not support multiplication or division. In some
- * cases it is also desirable to disable some double-width operations. For
- * example, if double-width division is implemented in software, disabling
- * it can reduce code size in some embedded targets.
- */
-//#define MBEDTLS_NO_UDBL_DIVISION
-
-/**
- * \def MBEDTLS_NO_64BIT_MULTIPLICATION
- *
- * The platform lacks support for 32x32 -> 64-bit multiplication.
- *
- * Used in:
- *      library/poly1305.c
- *
- * Some parts of the library may use multiplication of two unsigned 32-bit
- * operands with a 64-bit result in order to speed up computations. On some
- * platforms, this is not available in hardware and has to be implemented in
- * software, usually in a library provided by the toolchain.
- *
- * Sometimes it is not desirable to have to link to that library. This option
- * removes the dependency of that library on platforms that lack a hardware
- * 64-bit multiplier by embedding a software implementation in Mbed TLS.
- *
- * Note that depending on the compiler, this may decrease performance compared
- * to using the library function provided by the toolchain.
- */
-//#define MBEDTLS_NO_64BIT_MULTIPLICATION
-
-/**
- * \def MBEDTLS_HAVE_SSE2
- *
- * CPU supports SSE2 instruction set.
- *
- * Uncomment if the CPU supports SSE2 (IA-32 specific).
- */
-//#define MBEDTLS_HAVE_SSE2
-
-/**
- * \def MBEDTLS_HAVE_TIME
- *
- * System has time.h and time().
- * The time does not need to be correct, only time differences are used,
- * by contrast with MBEDTLS_HAVE_TIME_DATE
- *
- * Defining MBEDTLS_HAVE_TIME allows you to specify MBEDTLS_PLATFORM_TIME_ALT,
- * MBEDTLS_PLATFORM_TIME_MACRO, MBEDTLS_PLATFORM_TIME_TYPE_MACRO and
- * MBEDTLS_PLATFORM_STD_TIME.
- *
- * Comment if your system does not support time functions
- */
-#define MBEDTLS_HAVE_TIME
-
-/**
- * \def MBEDTLS_HAVE_TIME_DATE
- *
- * System has time.h, time(), and an implementation for
- * mbedtls_platform_gmtime_r() (see below).
- * The time needs to be correct (not necessarily very accurate, but at least
- * the date should be correct). This is used to verify the validity period of
- * X.509 certificates.
- *
- * Comment if your system does not have a correct clock.
- *
- * \note mbedtls_platform_gmtime_r() is an abstraction in platform_util.h that
- * behaves similarly to the gmtime_r() function from the C standard. Refer to
- * the documentation for mbedtls_platform_gmtime_r() for more information.
- *
- * \note It is possible to configure an implementation for
- * mbedtls_platform_gmtime_r() at compile-time by using the macro
- * MBEDTLS_PLATFORM_GMTIME_R_ALT.
- */
-#define MBEDTLS_HAVE_TIME_DATE
-
-/**
- * \def MBEDTLS_PLATFORM_MEMORY
- *
- * Enable the memory allocation layer.
- *
- * By default mbed TLS uses the system-provided calloc() and free().
- * This allows different allocators (self-implemented or provided) to be
- * provided to the platform abstraction layer.
- *
- * Enabling MBEDTLS_PLATFORM_MEMORY without the
- * MBEDTLS_PLATFORM_{FREE,CALLOC}_MACROs will provide
- * "mbedtls_platform_set_calloc_free()" allowing you to set an alternative calloc() and
- * free() function pointer at runtime.
- *
- * Enabling MBEDTLS_PLATFORM_MEMORY and specifying
- * MBEDTLS_PLATFORM_{CALLOC,FREE}_MACROs will allow you to specify the
- * alternate function at compile time.
- *
- * Requires: MBEDTLS_PLATFORM_C
- *
- * Enable this layer to allow use of alternative memory allocators.
- */
-//#define MBEDTLS_PLATFORM_MEMORY
-
-/**
- * \def MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
- *
- * Do not assign standard functions in the platform layer (e.g. calloc() to
- * MBEDTLS_PLATFORM_STD_CALLOC and printf() to MBEDTLS_PLATFORM_STD_PRINTF)
- *
- * This makes sure there are no linking errors on platforms that do not support
- * these functions. You will HAVE to provide alternatives, either at runtime
- * via the platform_set_xxx() functions or at compile time by setting
- * the MBEDTLS_PLATFORM_STD_XXX defines, or enabling a
- * MBEDTLS_PLATFORM_XXX_MACRO.
- *
- * Requires: MBEDTLS_PLATFORM_C
- *
- * Uncomment to prevent default assignment of standard functions in the
- * platform layer.
- */
-//#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
-
-/**
- * \def MBEDTLS_PLATFORM_EXIT_ALT
- *
- * MBEDTLS_PLATFORM_XXX_ALT: Uncomment a macro to let mbed TLS support the
- * function in the platform abstraction layer.
- *
- * Example: In case you uncomment MBEDTLS_PLATFORM_PRINTF_ALT, mbed TLS will
- * provide a function "mbedtls_platform_set_printf()" that allows you to set an
- * alternative printf function pointer.
- *
- * All these define require MBEDTLS_PLATFORM_C to be defined!
- *
- * \note MBEDTLS_PLATFORM_SNPRINTF_ALT is required on Windows;
- * it will be enabled automatically by check_config.h
- *
- * \warning MBEDTLS_PLATFORM_XXX_ALT cannot be defined at the same time as
- * MBEDTLS_PLATFORM_XXX_MACRO!
- *
- * Requires: MBEDTLS_PLATFORM_TIME_ALT requires MBEDTLS_HAVE_TIME
- *
- * Uncomment a macro to enable alternate implementation of specific base
- * platform function
- */
-//#define MBEDTLS_PLATFORM_EXIT_ALT
-//#define MBEDTLS_PLATFORM_TIME_ALT
-//#define MBEDTLS_PLATFORM_FPRINTF_ALT
-//#define MBEDTLS_PLATFORM_PRINTF_ALT
-//#define MBEDTLS_PLATFORM_SNPRINTF_ALT
-//#define MBEDTLS_PLATFORM_VSNPRINTF_ALT
-//#define MBEDTLS_PLATFORM_NV_SEED_ALT
-//#define MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT
-
-/**
- * \def MBEDTLS_DEPRECATED_WARNING
- *
- * Mark deprecated functions so that they generate a warning if used.
- * Functions deprecated in one version will usually be removed in the next
- * version. You can enable this to help you prepare the transition to a new
- * major version by making sure your code is not using these functions.
- *
- * This only works with GCC and Clang. With other compilers, you may want to
- * use MBEDTLS_DEPRECATED_REMOVED
- *
- * Uncomment to get warnings on using deprecated functions.
- */
-//#define MBEDTLS_DEPRECATED_WARNING
-
-/**
- * \def MBEDTLS_DEPRECATED_REMOVED
- *
- * Remove deprecated functions so that they generate an error if used.
- * Functions deprecated in one version will usually be removed in the next
- * version. You can enable this to help you prepare the transition to a new
- * major version by making sure your code is not using these functions.
- *
- * Uncomment to get errors on using deprecated functions.
- */
-//#define MBEDTLS_DEPRECATED_REMOVED
-
-/**
- * \def MBEDTLS_CHECK_PARAMS
- *
- * This configuration option controls whether the library validates more of
- * the parameters passed to it.
- *
- * When this flag is not defined, the library only attempts to validate an
- * input parameter if: (1) they may come from the outside world (such as the
- * network, the filesystem, etc.) or (2) not validating them could result in
- * internal memory errors such as overflowing a buffer controlled by the
- * library. On the other hand, it doesn't attempt to validate parameters whose
- * values are fully controlled by the application (such as pointers).
- *
- * When this flag is defined, the library additionally attempts to validate
- * parameters that are fully controlled by the application, and should always
- * be valid if the application code is fully correct and trusted.
- *
- * For example, when a function accepts as input a pointer to a buffer that may
- * contain untrusted data, and its documentation mentions that this pointer
- * must not be NULL:
- * - the pointer is checked to be non-NULL only if this option is enabled
- * - the content of the buffer is always validated
- *
- * When this flag is defined, if a library function receives a parameter that
- * is invalid, it will:
- * - invoke the macro MBEDTLS_PARAM_FAILED() which by default expands to a
- *   call to the function mbedtls_param_failed()
- * - immediately return (with a specific error code unless the function
- *   returns void and can't communicate an error).
- *
- * When defining this flag, you also need to:
- * - either provide a definition of the function mbedtls_param_failed() in
- *   your application (see platform_util.h for its prototype) as the library
- *   calls that function, but does not provide a default definition for it,
- * - or provide a different definition of the macro MBEDTLS_PARAM_FAILED()
- *   below if the above mechanism is not flexible enough to suit your needs.
- *   See the documentation of this macro later in this file.
- *
- * Uncomment to enable validation of application-controlled parameters.
- */
-//#define MBEDTLS_CHECK_PARAMS
-
-/* \} name SECTION: System support */
-
-/**
- * \name SECTION: mbed TLS feature support
- *
- * This section sets support for features that are or are not needed
- * within the modules that are enabled.
- * \{
- */
-
-/**
- * \def MBEDTLS_TIMING_ALT
- *
- * Uncomment to provide your own alternate implementation for mbedtls_timing_hardclock(),
- * mbedtls_timing_get_timer(), mbedtls_set_alarm(), mbedtls_set/get_delay()
- *
- * Only works if you have MBEDTLS_TIMING_C enabled.
- *
- * You will need to provide a header "timing_alt.h" and an implementation at
- * compile time.
- */
-//#define MBEDTLS_TIMING_ALT
-
-/**
- * \def MBEDTLS_AES_ALT
- *
- * MBEDTLS__MODULE_NAME__ALT: Uncomment a macro to let mbed TLS use your
- * alternate core implementation of a symmetric crypto, an arithmetic or hash
- * module (e.g. platform specific assembly optimized implementations). Keep
- * in mind that the function prototypes should remain the same.
- *
- * This replaces the whole module. If you only want to replace one of the
- * functions, use one of the MBEDTLS__FUNCTION_NAME__ALT flags.
- *
- * Example: In case you uncomment MBEDTLS_AES_ALT, mbed TLS will no longer
- * provide the "struct mbedtls_aes_context" definition and omit the base
- * function declarations and implementations. "aes_alt.h" will be included from
- * "aes.h" to include the new function definitions.
- *
- * Uncomment a macro to enable alternate implementation of the corresponding
- * module.
- *
- * \warning   MD2, MD4, MD5, ARC4, DES and SHA-1 are considered weak and their
- *            use constitutes a security risk. If possible, we recommend
- *            avoiding dependencies on them, and considering stronger message
- *            digests and ciphers instead.
- *
- */
-//#define MBEDTLS_AES_ALT
-//#define MBEDTLS_ARC4_ALT
-//#define MBEDTLS_ARIA_ALT
-//#define MBEDTLS_BLOWFISH_ALT
-//#define MBEDTLS_CAMELLIA_ALT
-//#define MBEDTLS_CCM_ALT
-//#define MBEDTLS_CHACHA20_ALT
-//#define MBEDTLS_CHACHAPOLY_ALT
-//#define MBEDTLS_CMAC_ALT
-//#define MBEDTLS_DES_ALT
-//#define MBEDTLS_DHM_ALT
-//#define MBEDTLS_ECJPAKE_ALT
-//#define MBEDTLS_GCM_ALT
-//#define MBEDTLS_NIST_KW_ALT
-//#define MBEDTLS_MD2_ALT
-//#define MBEDTLS_MD4_ALT
-//#define MBEDTLS_MD5_ALT
-//#define MBEDTLS_POLY1305_ALT
-//#define MBEDTLS_RIPEMD160_ALT
-//#define MBEDTLS_RSA_ALT
-//#define MBEDTLS_SHA1_ALT
-//#define MBEDTLS_SHA256_ALT
-//#define MBEDTLS_SHA512_ALT
-//#define MBEDTLS_XTEA_ALT
-
-/*
- * When replacing the elliptic curve module, pleace consider, that it is
- * implemented with two .c files:
- *      - ecp.c
- *      - ecp_curves.c
- * You can replace them very much like all the other MBEDTLS__MODULE_NAME__ALT
- * macros as described above. The only difference is that you have to make sure
- * that you provide functionality for both .c files.
- */
-//#define MBEDTLS_ECP_ALT
-
-/**
- * \def MBEDTLS_MD2_PROCESS_ALT
- *
- * MBEDTLS__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use you
- * alternate core implementation of symmetric crypto or hash function. Keep in
- * mind that function prototypes should remain the same.
- *
- * This replaces only one function. The header file from mbed TLS is still
- * used, in contrast to the MBEDTLS__MODULE_NAME__ALT flags.
- *
- * Example: In case you uncomment MBEDTLS_SHA256_PROCESS_ALT, mbed TLS will
- * no longer provide the mbedtls_sha1_process() function, but it will still provide
- * the other function (using your mbedtls_sha1_process() function) and the definition
- * of mbedtls_sha1_context, so your implementation of mbedtls_sha1_process must be compatible
- * with this definition.
- *
- * \note Because of a signature change, the core AES encryption and decryption routines are
- *       currently named mbedtls_aes_internal_encrypt and mbedtls_aes_internal_decrypt,
- *       respectively. When setting up alternative implementations, these functions should
- *       be overridden, but the wrapper functions mbedtls_aes_decrypt and mbedtls_aes_encrypt
- *       must stay untouched.
- *
- * \note If you use the AES_xxx_ALT macros, then is is recommended to also set
- *       MBEDTLS_AES_ROM_TABLES in order to help the linker garbage-collect the AES
- *       tables.
- *
- * Uncomment a macro to enable alternate implementation of the corresponding
- * function.
- *
- * \warning   MD2, MD4, MD5, DES and SHA-1 are considered weak and their use
- *            constitutes a security risk. If possible, we recommend avoiding
- *            dependencies on them, and considering stronger message digests
- *            and ciphers instead.
- *
- */
-//#define MBEDTLS_MD2_PROCESS_ALT
-//#define MBEDTLS_MD4_PROCESS_ALT
-//#define MBEDTLS_MD5_PROCESS_ALT
-//#define MBEDTLS_RIPEMD160_PROCESS_ALT
-//#define MBEDTLS_SHA1_PROCESS_ALT
-//#define MBEDTLS_SHA256_PROCESS_ALT
-//#define MBEDTLS_SHA512_PROCESS_ALT
-//#define MBEDTLS_DES_SETKEY_ALT
-//#define MBEDTLS_DES_CRYPT_ECB_ALT
-//#define MBEDTLS_DES3_CRYPT_ECB_ALT
-//#define MBEDTLS_AES_SETKEY_ENC_ALT
-//#define MBEDTLS_AES_SETKEY_DEC_ALT
-//#define MBEDTLS_AES_ENCRYPT_ALT
-//#define MBEDTLS_AES_DECRYPT_ALT
-//#define MBEDTLS_ECDH_GEN_PUBLIC_ALT
-//#define MBEDTLS_ECDH_COMPUTE_SHARED_ALT
-//#define MBEDTLS_ECDSA_VERIFY_ALT
-//#define MBEDTLS_ECDSA_SIGN_ALT
-//#define MBEDTLS_ECDSA_GENKEY_ALT
-
-/**
- * \def MBEDTLS_ECP_INTERNAL_ALT
- *
- * Expose a part of the internal interface of the Elliptic Curve Point module.
- *
- * MBEDTLS_ECP__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use your
- * alternative core implementation of elliptic curve arithmetic. Keep in mind
- * that function prototypes should remain the same.
- *
- * This partially replaces one function. The header file from mbed TLS is still
- * used, in contrast to the MBEDTLS_ECP_ALT flag. The original implementation
- * is still present and it is used for group structures not supported by the
- * alternative.
- *
- * Any of these options become available by defining MBEDTLS_ECP_INTERNAL_ALT
- * and implementing the following functions:
- *      unsigned char mbedtls_internal_ecp_grp_capable(
- *          const mbedtls_ecp_group *grp )
- *      int  mbedtls_internal_ecp_init( const mbedtls_ecp_group *grp )
- *      void mbedtls_internal_ecp_free( const mbedtls_ecp_group *grp )
- * The mbedtls_internal_ecp_grp_capable function should return 1 if the
- * replacement functions implement arithmetic for the given group and 0
- * otherwise.
- * The functions mbedtls_internal_ecp_init and mbedtls_internal_ecp_free are
- * called before and after each point operation and provide an opportunity to
- * implement optimized set up and tear down instructions.
- *
- * Example: In case you uncomment MBEDTLS_ECP_INTERNAL_ALT and
- * MBEDTLS_ECP_DOUBLE_JAC_ALT, mbed TLS will still provide the ecp_double_jac
- * function, but will use your mbedtls_internal_ecp_double_jac if the group is
- * supported (your mbedtls_internal_ecp_grp_capable function returns 1 when
- * receives it as an argument). If the group is not supported then the original
- * implementation is used. The other functions and the definition of
- * mbedtls_ecp_group and mbedtls_ecp_point will not change, so your
- * implementation of mbedtls_internal_ecp_double_jac and
- * mbedtls_internal_ecp_grp_capable must be compatible with this definition.
- *
- * Uncomment a macro to enable alternate implementation of the corresponding
- * function.
- */
-/* Required for all the functions in this section */
-//#define MBEDTLS_ECP_INTERNAL_ALT
-/* Support for Weierstrass curves with Jacobi representation */
-//#define MBEDTLS_ECP_RANDOMIZE_JAC_ALT
-//#define MBEDTLS_ECP_ADD_MIXED_ALT
-//#define MBEDTLS_ECP_DOUBLE_JAC_ALT
-//#define MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT
-//#define MBEDTLS_ECP_NORMALIZE_JAC_ALT
-/* Support for curves with Montgomery arithmetic */
-//#define MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT
-//#define MBEDTLS_ECP_RANDOMIZE_MXZ_ALT
-//#define MBEDTLS_ECP_NORMALIZE_MXZ_ALT
-
-/**
- * \def MBEDTLS_TEST_NULL_ENTROPY
- *
- * Enables testing and use of mbed TLS without any configured entropy sources.
- * This permits use of the library on platforms before an entropy source has
- * been integrated (see for example the MBEDTLS_ENTROPY_HARDWARE_ALT or the
- * MBEDTLS_ENTROPY_NV_SEED switches).
- *
- * WARNING! This switch MUST be disabled in production builds, and is suitable
- * only for development.
- * Enabling the switch negates any security provided by the library.
- *
- * Requires MBEDTLS_ENTROPY_C, MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
- *
- */
-//#define MBEDTLS_TEST_NULL_ENTROPY
-
-/**
- * \def MBEDTLS_ENTROPY_HARDWARE_ALT
- *
- * Uncomment this macro to let mbed TLS use your own implementation of a
- * hardware entropy collector.
- *
- * Your function must be called \c mbedtls_hardware_poll(), have the same
- * prototype as declared in entropy_poll.h, and accept NULL as first argument.
- *
- * Uncomment to use your own hardware entropy collector.
- */
-//#define MBEDTLS_ENTROPY_HARDWARE_ALT
-
-/**
- * \def MBEDTLS_AES_ROM_TABLES
- *
- * Use precomputed AES tables stored in ROM.
- *
- * Uncomment this macro to use precomputed AES tables stored in ROM.
- * Comment this macro to generate AES tables in RAM at runtime.
- *
- * Tradeoff: Using precomputed ROM tables reduces RAM usage by ~8kb
- * (or ~2kb if \c MBEDTLS_AES_FEWER_TABLES is used) and reduces the
- * initialization time before the first AES operation can be performed.
- * It comes at the cost of additional ~8kb ROM use (resp. ~2kb if \c
- * MBEDTLS_AES_FEWER_TABLES below is used), and potentially degraded
- * performance if ROM access is slower than RAM access.
- *
- * This option is independent of \c MBEDTLS_AES_FEWER_TABLES.
- *
- */
-//#define MBEDTLS_AES_ROM_TABLES
-
-/**
- * \def MBEDTLS_AES_FEWER_TABLES
- *
- * Use less ROM/RAM for AES tables.
- *
- * Uncommenting this macro omits 75% of the AES tables from
- * ROM / RAM (depending on the value of \c MBEDTLS_AES_ROM_TABLES)
- * by computing their values on the fly during operations
- * (the tables are entry-wise rotations of one another).
- *
- * Tradeoff: Uncommenting this reduces the RAM / ROM footprint
- * by ~6kb but at the cost of more arithmetic operations during
- * runtime. Specifically, one has to compare 4 accesses within
- * different tables to 4 accesses with additional arithmetic
- * operations within the same table. The performance gain/loss
- * depends on the system and memory details.
- *
- * This option is independent of \c MBEDTLS_AES_ROM_TABLES.
- *
- */
-//#define MBEDTLS_AES_FEWER_TABLES
-
-/**
- * \def MBEDTLS_CAMELLIA_SMALL_MEMORY
- *
- * Use less ROM for the Camellia implementation (saves about 768 bytes).
- *
- * Uncomment this macro to use less memory for Camellia.
- */
-//#define MBEDTLS_CAMELLIA_SMALL_MEMORY
-
-/**
- * \def MBEDTLS_CIPHER_MODE_CBC
- *
- * Enable Cipher Block Chaining mode (CBC) for symmetric ciphers.
- */
-#define MBEDTLS_CIPHER_MODE_CBC
-
-/**
- * \def MBEDTLS_CIPHER_MODE_CFB
- *
- * Enable Cipher Feedback mode (CFB) for symmetric ciphers.
- */
-#define MBEDTLS_CIPHER_MODE_CFB
-
-/**
- * \def MBEDTLS_CIPHER_MODE_CTR
- *
- * Enable Counter Block Cipher mode (CTR) for symmetric ciphers.
- */
-#define MBEDTLS_CIPHER_MODE_CTR
-
-/**
- * \def MBEDTLS_CIPHER_MODE_OFB
- *
- * Enable Output Feedback mode (OFB) for symmetric ciphers.
- */
-#define MBEDTLS_CIPHER_MODE_OFB
-
-/**
- * \def MBEDTLS_CIPHER_MODE_XTS
- *
- * Enable Xor-encrypt-xor with ciphertext stealing mode (XTS) for AES.
- */
-#define MBEDTLS_CIPHER_MODE_XTS
-
-/**
- * \def MBEDTLS_CIPHER_NULL_CIPHER
- *
- * Enable NULL cipher.
- * Warning: Only do so when you know what you are doing. This allows for
- * encryption or channels without any security!
- *
- * Requires MBEDTLS_ENABLE_WEAK_CIPHERSUITES as well to enable
- * the following ciphersuites:
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA
- *      MBEDTLS_TLS_RSA_WITH_NULL_SHA256
- *      MBEDTLS_TLS_RSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_RSA_WITH_NULL_MD5
- *      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA
- *      MBEDTLS_TLS_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_PSK_WITH_NULL_SHA
- *
- * Uncomment this macro to enable the NULL cipher and ciphersuites
- */
-//#define MBEDTLS_CIPHER_NULL_CIPHER
-
-/**
- * \def MBEDTLS_CIPHER_PADDING_PKCS7
- *
- * MBEDTLS_CIPHER_PADDING_XXX: Uncomment or comment macros to add support for
- * specific padding modes in the cipher layer with cipher modes that support
- * padding (e.g. CBC)
- *
- * If you disable all padding modes, only full blocks can be used with CBC.
- *
- * Enable padding modes in the cipher layer.
- */
-#define MBEDTLS_CIPHER_PADDING_PKCS7
-#define MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS
-#define MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN
-#define MBEDTLS_CIPHER_PADDING_ZEROS
-
-/**
- * \def MBEDTLS_ENABLE_WEAK_CIPHERSUITES
- *
- * Enable weak ciphersuites in SSL / TLS.
- * Warning: Only do so when you know what you are doing. This allows for
- * channels with virtually no security at all!
- *
- * This enables the following ciphersuites:
- *      MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA
- *
- * Uncomment this macro to enable weak ciphersuites
- *
- * \warning   DES is considered a weak cipher and its use constitutes a
- *            security risk. We recommend considering stronger ciphers instead.
- */
-//#define MBEDTLS_ENABLE_WEAK_CIPHERSUITES
-
-/**
- * \def MBEDTLS_REMOVE_ARC4_CIPHERSUITES
- *
- * Remove RC4 ciphersuites by default in SSL / TLS.
- * This flag removes the ciphersuites based on RC4 from the default list as
- * returned by mbedtls_ssl_list_ciphersuites(). However, it is still possible to
- * enable (some of) them with mbedtls_ssl_conf_ciphersuites() by including them
- * explicitly.
- *
- * Uncomment this macro to remove RC4 ciphersuites by default.
- */
-#define MBEDTLS_REMOVE_ARC4_CIPHERSUITES
-
-/**
- * \def MBEDTLS_ECP_DP_SECP192R1_ENABLED
- *
- * MBEDTLS_ECP_XXXX_ENABLED: Enables specific curves within the Elliptic Curve
- * module.  By default all supported curves are enabled.
- *
- * Comment macros to disable the curve and functions for it
- */
-#define MBEDTLS_ECP_DP_SECP192R1_ENABLED
-#define MBEDTLS_ECP_DP_SECP224R1_ENABLED
-#define MBEDTLS_ECP_DP_SECP256R1_ENABLED
-#define MBEDTLS_ECP_DP_SECP384R1_ENABLED
-#define MBEDTLS_ECP_DP_SECP521R1_ENABLED
-#define MBEDTLS_ECP_DP_SECP192K1_ENABLED
-#define MBEDTLS_ECP_DP_SECP224K1_ENABLED
-#define MBEDTLS_ECP_DP_SECP256K1_ENABLED
-#define MBEDTLS_ECP_DP_BP256R1_ENABLED
-#define MBEDTLS_ECP_DP_BP384R1_ENABLED
-#define MBEDTLS_ECP_DP_BP512R1_ENABLED
-#define MBEDTLS_ECP_DP_CURVE25519_ENABLED
-#define MBEDTLS_ECP_DP_CURVE448_ENABLED
-
-/**
- * \def MBEDTLS_ECP_NIST_OPTIM
- *
- * Enable specific 'modulo p' routines for each NIST prime.
- * Depending on the prime and architecture, makes operations 4 to 8 times
- * faster on the corresponding curve.
- *
- * Comment this macro to disable NIST curves optimisation.
- */
-#define MBEDTLS_ECP_NIST_OPTIM
-
-/**
- * \def MBEDTLS_ECP_RESTARTABLE
- *
- * Enable "non-blocking" ECC operations that can return early and be resumed.
- *
- * This allows various functions to pause by returning
- * #MBEDTLS_ERR_ECP_IN_PROGRESS (or, for functions in the SSL module,
- * #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) and then be called later again in
- * order to further progress and eventually complete their operation. This is
- * controlled through mbedtls_ecp_set_max_ops() which limits the maximum
- * number of ECC operations a function may perform before pausing; see
- * mbedtls_ecp_set_max_ops() for more information.
- *
- * This is useful in non-threaded environments if you want to avoid blocking
- * for too long on ECC (and, hence, X.509 or SSL/TLS) operations.
- *
- * Uncomment this macro to enable restartable ECC computations.
- *
- * \note  This option only works with the default software implementation of
- *        elliptic curve functionality. It is incompatible with
- *        MBEDTLS_ECP_ALT, MBEDTLS_ECDH_XXX_ALT and MBEDTLS_ECDSA_XXX_ALT.
- */
-//#define MBEDTLS_ECP_RESTARTABLE
-
-/**
- * \def MBEDTLS_ECDSA_DETERMINISTIC
- *
- * Enable deterministic ECDSA (RFC 6979).
- * Standard ECDSA is "fragile" in the sense that lack of entropy when signing
- * may result in a compromise of the long-term signing key. This is avoided by
- * the deterministic variant.
- *
- * Requires: MBEDTLS_HMAC_DRBG_C
- *
- * Comment this macro to disable deterministic ECDSA.
- */
-#define MBEDTLS_ECDSA_DETERMINISTIC
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
- *
- * Enable the PSK based ciphersuite modes in SSL / TLS.
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED
- *
- * Enable the DHE-PSK based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_DHM_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA
- *
- * \warning    Using DHE constitutes a security risk as it
- *             is not possible to validate custom DH parameters.
- *             If possible, it is recommended users should consider
- *             preferring other methods of key exchange.
- *             See dhm.h for more details.
- *
- */
-#define MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
- *
- * Enable the ECDHE-PSK based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED
- *
- * Enable the RSA-PSK based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
- *
- * Enable the RSA-only based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
- */
-#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED
- *
- * Enable the DHE-RSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_DHM_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- *
- * \warning    Using DHE constitutes a security risk as it
- *             is not possible to validate custom DH parameters.
- *             If possible, it is recommended users should consider
- *             preferring other methods of key exchange.
- *             See dhm.h for more details.
- *
- */
-#define MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
- *
- * Enable the ECDHE-RSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
- *
- * Enable the ECDHE-ECDSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_ECDSA_C, MBEDTLS_X509_CRT_PARSE_C,
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED
- *
- * Enable the ECDH-ECDSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
- *
- * Enable the ECDH-RSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
- *
- * Enable the ECJPAKE based ciphersuite modes in SSL / TLS.
- *
- * \warning This is currently experimental. EC J-PAKE support is based on the
- * Thread v1.0.0 specification; incompatible changes to the specification
- * might still happen. For this reason, this is disabled by default.
- *
- * Requires: MBEDTLS_ECJPAKE_C
- *           MBEDTLS_SHA256_C
- *           MBEDTLS_ECP_DP_SECP256R1_ENABLED
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8
- */
-//#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
-
-/**
- * \def MBEDTLS_PK_PARSE_EC_EXTENDED
- *
- * Enhance support for reading EC keys using variants of SEC1 not allowed by
- * RFC 5915 and RFC 5480.
- *
- * Currently this means parsing the SpecifiedECDomain choice of EC
- * parameters (only known groups are supported, not arbitrary domains, to
- * avoid validation issues).
- *
- * Disable if you only need to support RFC 5915 + 5480 key formats.
- */
-#define MBEDTLS_PK_PARSE_EC_EXTENDED
-
-/**
- * \def MBEDTLS_ERROR_STRERROR_DUMMY
- *
- * Enable a dummy error function to make use of mbedtls_strerror() in
- * third party libraries easier when MBEDTLS_ERROR_C is disabled
- * (no effect when MBEDTLS_ERROR_C is enabled).
- *
- * You can safely disable this if MBEDTLS_ERROR_C is enabled, or if you're
- * not using mbedtls_strerror() or error_strerror() in your application.
- *
- * Disable if you run into name conflicts and want to really remove the
- * mbedtls_strerror()
- */
-#define MBEDTLS_ERROR_STRERROR_DUMMY
-
-/**
- * \def MBEDTLS_GENPRIME
- *
- * Enable the prime-number generation code.
- *
- * Requires: MBEDTLS_BIGNUM_C
- */
-#define MBEDTLS_GENPRIME
-
-/**
- * \def MBEDTLS_FS_IO
- *
- * Enable functions that use the filesystem.
- */
-#define MBEDTLS_FS_IO
-
-/**
- * \def MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
- *
- * Do not add default entropy sources. These are the platform specific,
- * mbedtls_timing_hardclock and HAVEGE based poll functions.
- *
- * This is useful to have more control over the added entropy sources in an
- * application.
- *
- * Uncomment this macro to prevent loading of default entropy functions.
- */
-//#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
-
-/**
- * \def MBEDTLS_NO_PLATFORM_ENTROPY
- *
- * Do not use built-in platform entropy functions.
- * This is useful if your platform does not support
- * standards like the /dev/urandom or Windows CryptoAPI.
- *
- * Uncomment this macro to disable the built-in platform entropy functions.
- */
-//#define MBEDTLS_NO_PLATFORM_ENTROPY
-
-/**
- * \def MBEDTLS_ENTROPY_FORCE_SHA256
- *
- * Force the entropy accumulator to use a SHA-256 accumulator instead of the
- * default SHA-512 based one (if both are available).
- *
- * Requires: MBEDTLS_SHA256_C
- *
- * On 32-bit systems SHA-256 can be much faster than SHA-512. Use this option
- * if you have performance concerns.
- *
- * This option is only useful if both MBEDTLS_SHA256_C and
- * MBEDTLS_SHA512_C are defined. Otherwise the available hash module is used.
- */
-//#define MBEDTLS_ENTROPY_FORCE_SHA256
-
-/**
- * \def MBEDTLS_ENTROPY_NV_SEED
- *
- * Enable the non-volatile (NV) seed file-based entropy source.
- * (Also enables the NV seed read/write functions in the platform layer)
- *
- * This is crucial (if not required) on systems that do not have a
- * cryptographic entropy source (in hardware or kernel) available.
- *
- * Requires: MBEDTLS_ENTROPY_C, MBEDTLS_PLATFORM_C
- *
- * \note The read/write functions that are used by the entropy source are
- *       determined in the platform layer, and can be modified at runtime and/or
- *       compile-time depending on the flags (MBEDTLS_PLATFORM_NV_SEED_*) used.
- *
- * \note If you use the default implementation functions that read a seedfile
- *       with regular fopen(), please make sure you make a seedfile with the
- *       proper name (defined in MBEDTLS_PLATFORM_STD_NV_SEED_FILE) and at
- *       least MBEDTLS_ENTROPY_BLOCK_SIZE bytes in size that can be read from
- *       and written to or you will get an entropy source error! The default
- *       implementation will only use the first MBEDTLS_ENTROPY_BLOCK_SIZE
- *       bytes from the file.
- *
- * \note The entropy collector will write to the seed file before entropy is
- *       given to an external source, to update it.
- */
-//#define MBEDTLS_ENTROPY_NV_SEED
-
-/**
- * \def MBEDTLS_MEMORY_DEBUG
- *
- * Enable debugging of buffer allocator memory issues. Automatically prints
- * (to stderr) all (fatal) messages on memory allocation issues. Enables
- * function for 'debug output' of allocated memory.
- *
- * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C
- *
- * Uncomment this macro to let the buffer allocator print out error messages.
- */
-//#define MBEDTLS_MEMORY_DEBUG
-
-/**
- * \def MBEDTLS_MEMORY_BACKTRACE
- *
- * Include backtrace information with each allocated block.
- *
- * Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C
- *           GLIBC-compatible backtrace() an backtrace_symbols() support
- *
- * Uncomment this macro to include backtrace information
- */
-//#define MBEDTLS_MEMORY_BACKTRACE
-
-/**
- * \def MBEDTLS_PK_RSA_ALT_SUPPORT
- *
- * Support external private RSA keys (eg from a HSM) in the PK layer.
- *
- * Comment this macro to disable support for external private RSA keys.
- */
-#define MBEDTLS_PK_RSA_ALT_SUPPORT
-
-/**
- * \def MBEDTLS_PKCS1_V15
- *
- * Enable support for PKCS#1 v1.5 encoding.
- *
- * Requires: MBEDTLS_RSA_C
- *
- * This enables support for PKCS#1 v1.5 operations.
- */
-#define MBEDTLS_PKCS1_V15
-
-/**
- * \def MBEDTLS_PKCS1_V21
- *
- * Enable support for PKCS#1 v2.1 encoding.
- *
- * Requires: MBEDTLS_MD_C, MBEDTLS_RSA_C
- *
- * This enables support for RSAES-OAEP and RSASSA-PSS operations.
- */
-#define MBEDTLS_PKCS1_V21
-
-/**
- * \def MBEDTLS_PSA_CRYPTO_SPM
- *
- * When MBEDTLS_PSA_CRYPTO_SPM is defined, the code is built for SPM (Secure
- * Partition Manager) integration which separates the code into two parts: a
- * NSPE (Non-Secure Process Environment) and an SPE (Secure Process
- * Environment).
- *
- * Module:  library/psa_crypto.c
- * Requires: MBEDTLS_PSA_CRYPTO_C
- *
- */
-//#define MBEDTLS_PSA_CRYPTO_SPM
-
-/**
- * \def MBEDTLS_PSA_HAS_ITS_IO
- *
- * Enable the non-volatile secure storage usage.
- *
- * This is crucial on systems that do not have a HW TRNG support.
- *
- */
-//#define MBEDTLS_PSA_HAS_ITS_IO
-
-/**
- * \def MBEDTLS_RSA_NO_CRT
- *
- * Do not use the Chinese Remainder Theorem
- * for the RSA private operation.
- *
- * Uncomment this macro to disable the use of CRT in RSA.
- *
- */
-//#define MBEDTLS_RSA_NO_CRT
-
-/**
- * \def MBEDTLS_SELF_TEST
- *
- * Enable the checkup functions (*_self_test).
- */
-#define MBEDTLS_SELF_TEST
-
-/**
- * \def MBEDTLS_SHA256_SMALLER
- *
- * Enable an implementation of SHA-256 that has lower ROM footprint but also
- * lower performance.
- *
- * The default implementation is meant to be a reasonnable compromise between
- * performance and size. This version optimizes more aggressively for size at
- * the expense of performance. Eg on Cortex-M4 it reduces the size of
- * mbedtls_sha256_process() from ~2KB to ~0.5KB for a performance hit of about
- * 30%.
- *
- * Uncomment to enable the smaller implementation of SHA256.
- */
-//#define MBEDTLS_SHA256_SMALLER
-
-/**
- * \def MBEDTLS_SSL_ALL_ALERT_MESSAGES
- *
- * Enable sending of alert messages in case of encountered errors as per RFC.
- * If you choose not to send the alert messages, mbed TLS can still communicate
- * with other servers, only debugging of failures is harder.
- *
- * The advantage of not sending alert messages, is that no information is given
- * about reasons for failures thus preventing adversaries of gaining intel.
- *
- * Enable sending of all alert messages
- */
-#define MBEDTLS_SSL_ALL_ALERT_MESSAGES
-
-/**
- * \def MBEDTLS_SSL_ASYNC_PRIVATE
- *
- * Enable asynchronous external private key operations in SSL. This allows
- * you to configure an SSL connection to call an external cryptographic
- * module to perform private key operations instead of performing the
- * operation inside the library.
- *
- */
-//#define MBEDTLS_SSL_ASYNC_PRIVATE
-
-/**
- * \def MBEDTLS_SSL_DEBUG_ALL
- *
- * Enable the debug messages in SSL module for all issues.
- * Debug messages have been disabled in some places to prevent timing
- * attacks due to (unbalanced) debugging function calls.
- *
- * If you need all error reporting you should enable this during debugging,
- * but remove this for production servers that should log as well.
- *
- * Uncomment this macro to report all debug messages on errors introducing
- * a timing side-channel.
- *
- */
-//#define MBEDTLS_SSL_DEBUG_ALL
-
-/** \def MBEDTLS_SSL_ENCRYPT_THEN_MAC
- *
- * Enable support for Encrypt-then-MAC, RFC 7366.
- *
- * This allows peers that both support it to use a more robust protection for
- * ciphersuites using CBC, providing deep resistance against timing attacks
- * on the padding or underlying cipher.
- *
- * This only affects CBC ciphersuites, and is useless if none is defined.
- *
- * Requires: MBEDTLS_SSL_PROTO_TLS1    or
- *           MBEDTLS_SSL_PROTO_TLS1_1  or
- *           MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Comment this macro to disable support for Encrypt-then-MAC
- */
-#define MBEDTLS_SSL_ENCRYPT_THEN_MAC
-
-/** \def MBEDTLS_SSL_EXTENDED_MASTER_SECRET
- *
- * Enable support for Extended Master Secret, aka Session Hash
- * (draft-ietf-tls-session-hash-02).
- *
- * This was introduced as "the proper fix" to the Triple Handshake familiy of
- * attacks, but it is recommended to always use it (even if you disable
- * renegotiation), since it actually fixes a more fundamental issue in the
- * original SSL/TLS design, and has implications beyond Triple Handshake.
- *
- * Requires: MBEDTLS_SSL_PROTO_TLS1    or
- *           MBEDTLS_SSL_PROTO_TLS1_1  or
- *           MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Comment this macro to disable support for Extended Master Secret.
- */
-#define MBEDTLS_SSL_EXTENDED_MASTER_SECRET
-
-/**
- * \def MBEDTLS_SSL_FALLBACK_SCSV
- *
- * Enable support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv-00).
- *
- * For servers, it is recommended to always enable this, unless you support
- * only one version of TLS, or know for sure that none of your clients
- * implements a fallback strategy.
- *
- * For clients, you only need this if you're using a fallback strategy, which
- * is not recommended in the first place, unless you absolutely need it to
- * interoperate with buggy (version-intolerant) servers.
- *
- * Comment this macro to disable support for FALLBACK_SCSV
- */
-#define MBEDTLS_SSL_FALLBACK_SCSV
-
-/**
- * \def MBEDTLS_SSL_HW_RECORD_ACCEL
- *
- * Enable hooking functions in SSL module for hardware acceleration of
- * individual records.
- *
- * Uncomment this macro to enable hooking functions.
- */
-//#define MBEDTLS_SSL_HW_RECORD_ACCEL
-
-/**
- * \def MBEDTLS_SSL_CBC_RECORD_SPLITTING
- *
- * Enable 1/n-1 record splitting for CBC mode in SSLv3 and TLS 1.0.
- *
- * This is a countermeasure to the BEAST attack, which also minimizes the risk
- * of interoperability issues compared to sending 0-length records.
- *
- * Comment this macro to disable 1/n-1 record splitting.
- */
-#define MBEDTLS_SSL_CBC_RECORD_SPLITTING
-
-/**
- * \def MBEDTLS_SSL_RENEGOTIATION
- *
- * Enable support for TLS renegotiation.
- *
- * The two main uses of renegotiation are (1) refresh keys on long-lived
- * connections and (2) client authentication after the initial handshake.
- * If you don't need renegotiation, it's probably better to disable it, since
- * it has been associated with security issues in the past and is easy to
- * misuse/misunderstand.
- *
- * Comment this to disable support for renegotiation.
- *
- * \note   Even if this option is disabled, both client and server are aware
- *         of the Renegotiation Indication Extension (RFC 5746) used to
- *         prevent the SSL renegotiation attack (see RFC 5746 Sect. 1).
- *         (See \c mbedtls_ssl_conf_legacy_renegotiation for the
- *          configuration of this extension).
- *
- */
-#define MBEDTLS_SSL_RENEGOTIATION
-
-/**
- * \def MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO
- *
- * Enable support for receiving and parsing SSLv2 Client Hello messages for the
- * SSL Server module (MBEDTLS_SSL_SRV_C).
- *
- * Uncomment this macro to enable support for SSLv2 Client Hello messages.
- */
-//#define MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO
-
-/**
- * \def MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE
- *
- * Pick the ciphersuite according to the client's preferences rather than ours
- * in the SSL Server module (MBEDTLS_SSL_SRV_C).
- *
- * Uncomment this macro to respect client's ciphersuite order
- */
-//#define MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE
-
-/**
- * \def MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
- *
- * Enable support for RFC 6066 max_fragment_length extension in SSL.
- *
- * Comment this macro to disable support for the max_fragment_length extension
- */
-#define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
-
-/**
- * \def MBEDTLS_SSL_PROTO_SSL3
- *
- * Enable support for SSL 3.0.
- *
- * Requires: MBEDTLS_MD5_C
- *           MBEDTLS_SHA1_C
- *
- * Comment this macro to disable support for SSL 3.0
- */
-//#define MBEDTLS_SSL_PROTO_SSL3
-
-/**
- * \def MBEDTLS_SSL_PROTO_TLS1
- *
- * Enable support for TLS 1.0.
- *
- * Requires: MBEDTLS_MD5_C
- *           MBEDTLS_SHA1_C
- *
- * Comment this macro to disable support for TLS 1.0
- */
-#define MBEDTLS_SSL_PROTO_TLS1
-
-/**
- * \def MBEDTLS_SSL_PROTO_TLS1_1
- *
- * Enable support for TLS 1.1 (and DTLS 1.0 if DTLS is enabled).
- *
- * Requires: MBEDTLS_MD5_C
- *           MBEDTLS_SHA1_C
- *
- * Comment this macro to disable support for TLS 1.1 / DTLS 1.0
- */
-#define MBEDTLS_SSL_PROTO_TLS1_1
-
-/**
- * \def MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Enable support for TLS 1.2 (and DTLS 1.2 if DTLS is enabled).
- *
- * Requires: MBEDTLS_SHA1_C or MBEDTLS_SHA256_C or MBEDTLS_SHA512_C
- *           (Depends on ciphersuites)
- *
- * Comment this macro to disable support for TLS 1.2 / DTLS 1.2
- */
-#define MBEDTLS_SSL_PROTO_TLS1_2
-
-/**
- * \def MBEDTLS_SSL_PROTO_DTLS
- *
- * Enable support for DTLS (all available versions).
- *
- * Enable this and MBEDTLS_SSL_PROTO_TLS1_1 to enable DTLS 1.0,
- * and/or this and MBEDTLS_SSL_PROTO_TLS1_2 to enable DTLS 1.2.
- *
- * Requires: MBEDTLS_SSL_PROTO_TLS1_1
- *        or MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Comment this macro to disable support for DTLS
- */
-#define MBEDTLS_SSL_PROTO_DTLS
-
-/**
- * \def MBEDTLS_SSL_ALPN
- *
- * Enable support for RFC 7301 Application Layer Protocol Negotiation.
- *
- * Comment this macro to disable support for ALPN.
- */
-#define MBEDTLS_SSL_ALPN
-
-/**
- * \def MBEDTLS_SSL_DTLS_ANTI_REPLAY
- *
- * Enable support for the anti-replay mechanism in DTLS.
- *
- * Requires: MBEDTLS_SSL_TLS_C
- *           MBEDTLS_SSL_PROTO_DTLS
- *
- * \warning Disabling this is often a security risk!
- * See mbedtls_ssl_conf_dtls_anti_replay() for details.
- *
- * Comment this to disable anti-replay in DTLS.
- */
-#define MBEDTLS_SSL_DTLS_ANTI_REPLAY
-
-/**
- * \def MBEDTLS_SSL_DTLS_HELLO_VERIFY
- *
- * Enable support for HelloVerifyRequest on DTLS servers.
- *
- * This feature is highly recommended to prevent DTLS servers being used as
- * amplifiers in DoS attacks against other hosts. It should always be enabled
- * unless you know for sure amplification cannot be a problem in the
- * environment in which your server operates.
- *
- * \warning Disabling this can ba a security risk! (see above)
- *
- * Requires: MBEDTLS_SSL_PROTO_DTLS
- *
- * Comment this to disable support for HelloVerifyRequest.
- */
-#define MBEDTLS_SSL_DTLS_HELLO_VERIFY
-
-/**
- * \def MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE
- *
- * Enable server-side support for clients that reconnect from the same port.
- *
- * Some clients unexpectedly close the connection and try to reconnect using the
- * same source port. This needs special support from the server to handle the
- * new connection securely, as described in section 4.2.8 of RFC 6347. This
- * flag enables that support.
- *
- * Requires: MBEDTLS_SSL_DTLS_HELLO_VERIFY
- *
- * Comment this to disable support for clients reusing the source port.
- */
-#define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE
-
-/**
- * \def MBEDTLS_SSL_DTLS_BADMAC_LIMIT
- *
- * Enable support for a limit of records with bad MAC.
- *
- * See mbedtls_ssl_conf_dtls_badmac_limit().
- *
- * Requires: MBEDTLS_SSL_PROTO_DTLS
- */
-#define MBEDTLS_SSL_DTLS_BADMAC_LIMIT
-
-/**
- * \def MBEDTLS_SSL_SESSION_TICKETS
- *
- * Enable support for RFC 5077 session tickets in SSL.
- * Client-side, provides full support for session tickets (maintenance of a
- * session store remains the responsibility of the application, though).
- * Server-side, you also need to provide callbacks for writing and parsing
- * tickets, including authenticated encryption and key management. Example
- * callbacks are provided by MBEDTLS_SSL_TICKET_C.
- *
- * Comment this macro to disable support for SSL session tickets
- */
-#define MBEDTLS_SSL_SESSION_TICKETS
-
-/**
- * \def MBEDTLS_SSL_EXPORT_KEYS
- *
- * Enable support for exporting key block and master secret.
- * This is required for certain users of TLS, e.g. EAP-TLS.
- *
- * Comment this macro to disable support for key export
- */
-#define MBEDTLS_SSL_EXPORT_KEYS
-
-/**
- * \def MBEDTLS_SSL_SERVER_NAME_INDICATION
- *
- * Enable support for RFC 6066 server name indication (SNI) in SSL.
- *
- * Requires: MBEDTLS_X509_CRT_PARSE_C
- *
- * Comment this macro to disable support for server name indication in SSL
- */
-#define MBEDTLS_SSL_SERVER_NAME_INDICATION
-
-/**
- * \def MBEDTLS_SSL_TRUNCATED_HMAC
- *
- * Enable support for RFC 6066 truncated HMAC in SSL.
- *
- * Comment this macro to disable support for truncated HMAC in SSL
- */
-#define MBEDTLS_SSL_TRUNCATED_HMAC
-
-/**
- * \def MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT
- *
- * Fallback to old (pre-2.7), non-conforming implementation of the truncated
- * HMAC extension which also truncates the HMAC key. Note that this option is
- * only meant for a transitory upgrade period and is likely to be removed in
- * a future version of the library.
- *
- * \warning The old implementation is non-compliant and has a security weakness
- *          (2^80 brute force attack on the HMAC key used for a single,
- *          uninterrupted connection). This should only be enabled temporarily
- *          when (1) the use of truncated HMAC is essential in order to save
- *          bandwidth, and (2) the peer is an Mbed TLS stack that doesn't use
- *          the fixed implementation yet (pre-2.7).
- *
- * \deprecated This option is deprecated and will likely be removed in a
- *             future version of Mbed TLS.
- *
- * Uncomment to fallback to old, non-compliant truncated HMAC implementation.
- *
- * Requires: MBEDTLS_SSL_TRUNCATED_HMAC
- */
-//#define MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT
-
-/**
- * \def MBEDTLS_THREADING_ALT
- *
- * Provide your own alternate threading implementation.
- *
- * Requires: MBEDTLS_THREADING_C
- *
- * Uncomment this to allow your own alternate threading implementation.
- */
-//#define MBEDTLS_THREADING_ALT
-
-/**
- * \def MBEDTLS_THREADING_PTHREAD
- *
- * Enable the pthread wrapper layer for the threading layer.
- *
- * Requires: MBEDTLS_THREADING_C
- *
- * Uncomment this to enable pthread mutexes.
- */
-//#define MBEDTLS_THREADING_PTHREAD
-
-/**
- * \def MBEDTLS_USE_PSA_CRYPTO
- *
- * Make the X.509 and TLS library use PSA for cryptographic operations, see
- * #MBEDTLS_PSA_CRYPTO_C.
- *
- * Note: this option is still in progress, the full X.509 and TLS modules are
- * not covered yet, but parts that are not ported to PSA yet will still work
- * as usual, so enabling this option should not break backwards compatibility.
- *
- * \warning  Support for PSA is still an experimental feature.
- *           Any public API that depends on this option may change
- *           at any time until this warning is removed.
- *
- * Requires: MBEDTLS_PSA_CRYPTO_C.
- */
-//#define MBEDTLS_USE_PSA_CRYPTO
-
-/**
- * \def MBEDTLS_VERSION_FEATURES
- *
- * Allow run-time checking of compile-time enabled features. Thus allowing users
- * to check at run-time if the library is for instance compiled with threading
- * support via mbedtls_version_check_feature().
- *
- * Requires: MBEDTLS_VERSION_C
- *
- * Comment this to disable run-time checking and save ROM space
- */
-#define MBEDTLS_VERSION_FEATURES
-
-/**
- * \def MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
- *
- * If set, the X509 parser will not break-off when parsing an X509 certificate
- * and encountering an extension in a v1 or v2 certificate.
- *
- * Uncomment to prevent an error.
- */
-//#define MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
-
-/**
- * \def MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
- *
- * If set, the X509 parser will not break-off when parsing an X509 certificate
- * and encountering an unknown critical extension.
- *
- * \warning Depending on your PKI use, enabling this can be a security risk!
- *
- * Uncomment to prevent an error.
- */
-//#define MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
-
-/**
- * \def MBEDTLS_X509_CHECK_KEY_USAGE
- *
- * Enable verification of the keyUsage extension (CA and leaf certificates).
- *
- * Disabling this avoids problems with mis-issued and/or misused
- * (intermediate) CA and leaf certificates.
- *
- * \warning Depending on your PKI use, disabling this can be a security risk!
- *
- * Comment to skip keyUsage checking for both CA and leaf certificates.
- */
-#define MBEDTLS_X509_CHECK_KEY_USAGE
-
-/**
- * \def MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
- *
- * Enable verification of the extendedKeyUsage extension (leaf certificates).
- *
- * Disabling this avoids problems with mis-issued and/or misused certificates.
- *
- * \warning Depending on your PKI use, disabling this can be a security risk!
- *
- * Comment to skip extendedKeyUsage checking for certificates.
- */
-#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
-
-/**
- * \def MBEDTLS_X509_RSASSA_PSS_SUPPORT
- *
- * Enable parsing and verification of X.509 certificates, CRLs and CSRS
- * signed with RSASSA-PSS (aka PKCS#1 v2.1).
- *
- * Comment this macro to disallow using RSASSA-PSS in certificates.
- */
-#define MBEDTLS_X509_RSASSA_PSS_SUPPORT
-
-/**
- * \def MBEDTLS_ZLIB_SUPPORT
- *
- * If set, the SSL/TLS module uses ZLIB to support compression and
- * decompression of packet data.
- *
- * \warning TLS-level compression MAY REDUCE SECURITY! See for example the
- * CRIME attack. Before enabling this option, you should examine with care if
- * CRIME or similar exploits may be applicable to your use case.
- *
- * \note Currently compression can't be used with DTLS.
- *
- * \deprecated This feature is deprecated and will be removed
- *             in the next major revision of the library.
- *
- * Used in: library/ssl_tls.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *
- * This feature requires zlib library and headers to be present.
- *
- * Uncomment to enable use of ZLIB
- */
-//#define MBEDTLS_ZLIB_SUPPORT
-/* \} name SECTION: mbed TLS feature support */
-
-/**
- * \name SECTION: mbed TLS modules
- *
- * This section enables or disables entire modules in mbed TLS
- * \{
- */
-
-/**
- * \def MBEDTLS_AESNI_C
- *
- * Enable AES-NI support on x86-64.
- *
- * Module:  library/aesni.c
- * Caller:  library/aes.c
- *
- * Requires: MBEDTLS_HAVE_ASM
- *
- * This modules adds support for the AES-NI instructions on x86-64
- */
-#define MBEDTLS_AESNI_C
-
-/**
- * \def MBEDTLS_AES_C
- *
- * Enable the AES block cipher.
- *
- * Module:  library/aes.c
- * Caller:  library/cipher.c
- *          library/pem.c
- *          library/ctr_drbg.c
- *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA
- *
- * PEM_PARSE uses AES for decrypting encrypted keys.
- */
-#define MBEDTLS_AES_C
-
-/**
- * \def MBEDTLS_ARC4_C
- *
- * Enable the ARCFOUR stream cipher.
- *
- * Module:  library/arc4.c
- * Caller:  library/cipher.c
- *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
- *      MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
- *
- * \warning   ARC4 is considered a weak cipher and its use constitutes a
- *            security risk. If possible, we recommend avoidng dependencies on
- *            it, and considering stronger ciphers instead.
- *
- */
-#define MBEDTLS_ARC4_C
-
-/**
- * \def MBEDTLS_ASN1_PARSE_C
- *
- * Enable the generic ASN1 parser.
- *
- * Module:  library/asn1.c
- * Caller:  library/x509.c
- *          library/dhm.c
- *          library/pkcs12.c
- *          library/pkcs5.c
- *          library/pkparse.c
- */
-#define MBEDTLS_ASN1_PARSE_C
-
-/**
- * \def MBEDTLS_ASN1_WRITE_C
- *
- * Enable the generic ASN1 writer.
- *
- * Module:  library/asn1write.c
- * Caller:  library/ecdsa.c
- *          library/pkwrite.c
- *          library/x509_create.c
- *          library/x509write_crt.c
- *          library/x509write_csr.c
- */
-#define MBEDTLS_ASN1_WRITE_C
-
-/**
- * \def MBEDTLS_BASE64_C
- *
- * Enable the Base64 module.
- *
- * Module:  library/base64.c
- * Caller:  library/pem.c
- *
- * This module is required for PEM support (required by X.509).
- */
-#define MBEDTLS_BASE64_C
-
-/**
- * \def MBEDTLS_BIGNUM_C
- *
- * Enable the multi-precision integer library.
- *
- * Module:  library/bignum.c
- * Caller:  library/dhm.c
- *          library/ecp.c
- *          library/ecdsa.c
- *          library/rsa.c
- *          library/rsa_internal.c
- *          library/ssl_tls.c
- *
- * This module is required for RSA, DHM and ECC (ECDH, ECDSA) support.
- */
-#define MBEDTLS_BIGNUM_C
-
-/**
- * \def MBEDTLS_BLOWFISH_C
- *
- * Enable the Blowfish block cipher.
- *
- * Module:  library/blowfish.c
- */
-#define MBEDTLS_BLOWFISH_C
-
-/**
- * \def MBEDTLS_CAMELLIA_C
- *
- * Enable the Camellia block cipher.
- *
- * Module:  library/camellia.c
- * Caller:  library/cipher.c
- *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256
- */
-#define MBEDTLS_CAMELLIA_C
-
-/**
- * \def MBEDTLS_ARIA_C
- *
- * Enable the ARIA block cipher.
- *
- * Module:  library/aria.c
- * Caller:  library/cipher.c
- *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *
- *      MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384
- */
-//#define MBEDTLS_ARIA_C
-
-/**
- * \def MBEDTLS_CCM_C
- *
- * Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher.
- *
- * Module:  library/ccm.c
- *
- * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
- *
- * This module enables the AES-CCM ciphersuites, if other requisites are
- * enabled as well.
- */
-#define MBEDTLS_CCM_C
-
-/**
- * \def MBEDTLS_CERTS_C
- *
- * Enable the test certificates.
- *
- * Module:  library/certs.c
- * Caller:
- *
- * This module is used for testing (ssl_client/server).
- */
-#define MBEDTLS_CERTS_C
-
-/**
- * \def MBEDTLS_CHACHA20_C
- *
- * Enable the ChaCha20 stream cipher.
- *
- * Module:  library/chacha20.c
- */
-#define MBEDTLS_CHACHA20_C
-
-/**
- * \def MBEDTLS_CHACHAPOLY_C
- *
- * Enable the ChaCha20-Poly1305 AEAD algorithm.
- *
- * Module:  library/chachapoly.c
- *
- * This module requires: MBEDTLS_CHACHA20_C, MBEDTLS_POLY1305_C
- */
-#define MBEDTLS_CHACHAPOLY_C
-
-/**
- * \def MBEDTLS_CIPHER_C
- *
- * Enable the generic cipher layer.
- *
- * Module:  library/cipher.c
- * Caller:  library/ssl_tls.c
- *
- * Uncomment to enable generic cipher wrappers.
- */
-#define MBEDTLS_CIPHER_C
-
-/**
- * \def MBEDTLS_CMAC_C
- *
- * Enable the CMAC (Cipher-based Message Authentication Code) mode for block
- * ciphers.
- *
- * Module:  library/cmac.c
- *
- * Requires: MBEDTLS_AES_C or MBEDTLS_DES_C
- *
- */
-//#define MBEDTLS_CMAC_C
-
-/**
- * \def MBEDTLS_CTR_DRBG_C
- *
- * Enable the CTR_DRBG AES-based random generator.
- * The CTR_DRBG generator uses AES-256 by default.
- * To use AES-128 instead, enable MBEDTLS_CTR_DRBG_USE_128_BIT_KEY below.
- *
- * Module:  library/ctr_drbg.c
- * Caller:
- *
- * Requires: MBEDTLS_AES_C
- *
- * This module provides the CTR_DRBG AES random number generator.
- */
-#define MBEDTLS_CTR_DRBG_C
-
-/**
- * \def MBEDTLS_DEBUG_C
- *
- * Enable the debug functions.
- *
- * Module:  library/debug.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *
- * This module provides debugging functions.
- */
-#define MBEDTLS_DEBUG_C
-
-/**
- * \def MBEDTLS_DES_C
- *
- * Enable the DES block cipher.
- *
- * Module:  library/des.c
- * Caller:  library/pem.c
- *          library/cipher.c
- *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
- *
- * PEM_PARSE uses DES/3DES for decrypting encrypted keys.
- *
- * \warning   DES is considered a weak cipher and its use constitutes a
- *            security risk. We recommend considering stronger ciphers instead.
- */
-#define MBEDTLS_DES_C
-
-/**
- * \def MBEDTLS_DHM_C
- *
- * Enable the Diffie-Hellman-Merkle module.
- *
- * Module:  library/dhm.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *
- * This module is used by the following key exchanges:
- *      DHE-RSA, DHE-PSK
- *
- * \warning    Using DHE constitutes a security risk as it
- *             is not possible to validate custom DH parameters.
- *             If possible, it is recommended users should consider
- *             preferring other methods of key exchange.
- *             See dhm.h for more details.
- *
- */
-#define MBEDTLS_DHM_C
-
-/**
- * \def MBEDTLS_ECDH_C
- *
- * Enable the elliptic curve Diffie-Hellman library.
- *
- * Module:  library/ecdh.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *
- * This module is used by the following key exchanges:
- *      ECDHE-ECDSA, ECDHE-RSA, DHE-PSK
- *
- * Requires: MBEDTLS_ECP_C
- */
-#define MBEDTLS_ECDH_C
-
-/**
- * \def MBEDTLS_ECDSA_C
- *
- * Enable the elliptic curve DSA library.
- *
- * Module:  library/ecdsa.c
- * Caller:
- *
- * This module is used by the following key exchanges:
- *      ECDHE-ECDSA
- *
- * Requires: MBEDTLS_ECP_C, MBEDTLS_ASN1_WRITE_C, MBEDTLS_ASN1_PARSE_C
- */
-#define MBEDTLS_ECDSA_C
-
-/**
- * \def MBEDTLS_ECJPAKE_C
- *
- * Enable the elliptic curve J-PAKE library.
- *
- * \warning This is currently experimental. EC J-PAKE support is based on the
- * Thread v1.0.0 specification; incompatible changes to the specification
- * might still happen. For this reason, this is disabled by default.
- *
- * Module:  library/ecjpake.c
- * Caller:
- *
- * This module is used by the following key exchanges:
- *      ECJPAKE
- *
- * Requires: MBEDTLS_ECP_C, MBEDTLS_MD_C
- */
-//#define MBEDTLS_ECJPAKE_C
-
-/**
- * \def MBEDTLS_ECP_C
- *
- * Enable the elliptic curve over GF(p) library.
- *
- * Module:  library/ecp.c
- * Caller:  library/ecdh.c
- *          library/ecdsa.c
- *          library/ecjpake.c
- *
- * Requires: MBEDTLS_BIGNUM_C and at least one MBEDTLS_ECP_DP_XXX_ENABLED
- */
-#define MBEDTLS_ECP_C
-
-/**
- * \def MBEDTLS_ENTROPY_C
- *
- * Enable the platform-specific entropy code.
- *
- * Module:  library/entropy.c
- * Caller:
- *
- * Requires: MBEDTLS_SHA512_C or MBEDTLS_SHA256_C
- *
- * This module provides a generic entropy pool
- */
-#define MBEDTLS_ENTROPY_C
-
-/**
- * \def MBEDTLS_ERROR_C
- *
- * Enable error code to error string conversion.
- *
- * Module:  library/error.c
- * Caller:
- *
- * This module enables mbedtls_strerror().
- */
-#define MBEDTLS_ERROR_C
-
-/**
- * \def MBEDTLS_GCM_C
- *
- * Enable the Galois/Counter Mode (GCM) for AES.
- *
- * Module:  library/gcm.c
- *
- * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
- *
- * This module enables the AES-GCM and CAMELLIA-GCM ciphersuites, if other
- * requisites are enabled as well.
- */
-#define MBEDTLS_GCM_C
-
-/**
- * \def MBEDTLS_HAVEGE_C
- *
- * Enable the HAVEGE random generator.
- *
- * Warning: the HAVEGE random generator is not suitable for virtualized
- *          environments
- *
- * Warning: the HAVEGE random generator is dependent on timing and specific
- *          processor traits. It is therefore not advised to use HAVEGE as
- *          your applications primary random generator or primary entropy pool
- *          input. As a secondary input to your entropy pool, it IS able add
- *          the (limited) extra entropy it provides.
- *
- * Module:  library/havege.c
- * Caller:
- *
- * Requires: MBEDTLS_TIMING_C
- *
- * Uncomment to enable the HAVEGE random generator.
- */
-//#define MBEDTLS_HAVEGE_C
-
-/**
- * \def MBEDTLS_HKDF_C
- *
- * Enable the HKDF algorithm (RFC 5869).
- *
- * Module:  library/hkdf.c
- * Caller:
- *
- * Requires: MBEDTLS_MD_C
- *
- * This module adds support for the Hashed Message Authentication Code
- * (HMAC)-based key derivation function (HKDF).
- */
-#define MBEDTLS_HKDF_C
-
-/**
- * \def MBEDTLS_HMAC_DRBG_C
- *
- * Enable the HMAC_DRBG random generator.
- *
- * Module:  library/hmac_drbg.c
- * Caller:
- *
- * Requires: MBEDTLS_MD_C
- *
- * Uncomment to enable the HMAC_DRBG random number geerator.
- */
-#define MBEDTLS_HMAC_DRBG_C
-
-/**
- * \def MBEDTLS_NIST_KW_C
- *
- * Enable the Key Wrapping mode for 128-bit block ciphers,
- * as defined in NIST SP 800-38F. Only KW and KWP modes
- * are supported. At the moment, only AES is approved by NIST.
- *
- * Module:  library/nist_kw.c
- *
- * Requires: MBEDTLS_AES_C and MBEDTLS_CIPHER_C
- */
-//#define MBEDTLS_NIST_KW_C
-
-/**
- * \def MBEDTLS_MD_C
- *
- * Enable the generic message digest layer.
- *
- * Module:  library/md.c
- * Caller:
- *
- * Uncomment to enable generic message digest wrappers.
- */
-#define MBEDTLS_MD_C
-
-/**
- * \def MBEDTLS_MD2_C
- *
- * Enable the MD2 hash algorithm.
- *
- * Module:  library/md2.c
- * Caller:
- *
- * Uncomment to enable support for (rare) MD2-signed X.509 certs.
- *
- * \warning   MD2 is considered a weak message digest and its use constitutes a
- *            security risk. If possible, we recommend avoiding dependencies on
- *            it, and considering stronger message digests instead.
- *
- */
-//#define MBEDTLS_MD2_C
-
-/**
- * \def MBEDTLS_MD4_C
- *
- * Enable the MD4 hash algorithm.
- *
- * Module:  library/md4.c
- * Caller:
- *
- * Uncomment to enable support for (rare) MD4-signed X.509 certs.
- *
- * \warning   MD4 is considered a weak message digest and its use constitutes a
- *            security risk. If possible, we recommend avoiding dependencies on
- *            it, and considering stronger message digests instead.
- *
- */
-//#define MBEDTLS_MD4_C
-
-/**
- * \def MBEDTLS_MD5_C
- *
- * Enable the MD5 hash algorithm.
- *
- * Module:  library/md5.c
- * Caller:  library/md.c
- *          library/pem.c
- *          library/ssl_tls.c
- *
- * This module is required for SSL/TLS up to version 1.1, and for TLS 1.2
- * depending on the handshake parameters. Further, it is used for checking
- * MD5-signed certificates, and for PBKDF1 when decrypting PEM-encoded
- * encrypted keys.
- *
- * \warning   MD5 is considered a weak message digest and its use constitutes a
- *            security risk. If possible, we recommend avoiding dependencies on
- *            it, and considering stronger message digests instead.
- *
- */
-#define MBEDTLS_MD5_C
-
-/**
- * \def MBEDTLS_MEMORY_BUFFER_ALLOC_C
- *
- * Enable the buffer allocator implementation that makes use of a (stack)
- * based buffer to 'allocate' dynamic memory. (replaces calloc() and free()
- * calls)
- *
- * Module:  library/memory_buffer_alloc.c
- *
- * Requires: MBEDTLS_PLATFORM_C
- *           MBEDTLS_PLATFORM_MEMORY (to use it within mbed TLS)
- *
- * Enable this module to enable the buffer memory allocator.
- */
-//#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
-
-/**
- * \def MBEDTLS_NET_C
- *
- * Enable the TCP and UDP over IPv6/IPv4 networking routines.
- *
- * \note This module only works on POSIX/Unix (including Linux, BSD and OS X)
- * and Windows. For other platforms, you'll want to disable it, and write your
- * own networking callbacks to be passed to \c mbedtls_ssl_set_bio().
- *
- * \note See also our Knowledge Base article about porting to a new
- * environment:
- * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
- *
- * Module:  library/net_sockets.c
- *
- * This module provides networking routines.
- */
-#define MBEDTLS_NET_C
-
-/**
- * \def MBEDTLS_OID_C
- *
- * Enable the OID database.
- *
- * Module:  library/oid.c
- * Caller:  library/asn1write.c
- *          library/pkcs5.c
- *          library/pkparse.c
- *          library/pkwrite.c
- *          library/rsa.c
- *          library/x509.c
- *          library/x509_create.c
- *          library/x509_crl.c
- *          library/x509_crt.c
- *          library/x509_csr.c
- *          library/x509write_crt.c
- *          library/x509write_csr.c
- *
- * This modules translates between OIDs and internal values.
- */
-#define MBEDTLS_OID_C
-
-/**
- * \def MBEDTLS_PADLOCK_C
- *
- * Enable VIA Padlock support on x86.
- *
- * Module:  library/padlock.c
- * Caller:  library/aes.c
- *
- * Requires: MBEDTLS_HAVE_ASM
- *
- * This modules adds support for the VIA PadLock on x86.
- */
-#define MBEDTLS_PADLOCK_C
-
-/**
- * \def MBEDTLS_PEM_PARSE_C
- *
- * Enable PEM decoding / parsing.
- *
- * Module:  library/pem.c
- * Caller:  library/dhm.c
- *          library/pkparse.c
- *          library/x509_crl.c
- *          library/x509_crt.c
- *          library/x509_csr.c
- *
- * Requires: MBEDTLS_BASE64_C
- *
- * This modules adds support for decoding / parsing PEM files.
- */
-#define MBEDTLS_PEM_PARSE_C
-
-/**
- * \def MBEDTLS_PEM_WRITE_C
- *
- * Enable PEM encoding / writing.
- *
- * Module:  library/pem.c
- * Caller:  library/pkwrite.c
- *          library/x509write_crt.c
- *          library/x509write_csr.c
- *
- * Requires: MBEDTLS_BASE64_C
- *
- * This modules adds support for encoding / writing PEM files.
- */
-#define MBEDTLS_PEM_WRITE_C
-
-/**
- * \def MBEDTLS_PK_C
- *
- * Enable the generic public (asymetric) key layer.
- *
- * Module:  library/pk.c
- * Caller:  library/ssl_tls.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *
- * Requires: MBEDTLS_RSA_C or MBEDTLS_ECP_C
- *
- * Uncomment to enable generic public key wrappers.
- */
-#define MBEDTLS_PK_C
-
-/**
- * \def MBEDTLS_PK_PARSE_C
- *
- * Enable the generic public (asymetric) key parser.
- *
- * Module:  library/pkparse.c
- * Caller:  library/x509_crt.c
- *          library/x509_csr.c
- *
- * Requires: MBEDTLS_PK_C
- *
- * Uncomment to enable generic public key parse functions.
- */
-#define MBEDTLS_PK_PARSE_C
-
-/**
- * \def MBEDTLS_PK_WRITE_C
- *
- * Enable the generic public (asymetric) key writer.
- *
- * Module:  library/pkwrite.c
- * Caller:  library/x509write.c
- *
- * Requires: MBEDTLS_PK_C
- *
- * Uncomment to enable generic public key write functions.
- */
-#define MBEDTLS_PK_WRITE_C
-
-/**
- * \def MBEDTLS_PKCS5_C
- *
- * Enable PKCS#5 functions.
- *
- * Module:  library/pkcs5.c
- *
- * Requires: MBEDTLS_MD_C
- *
- * This module adds support for the PKCS#5 functions.
- */
-#define MBEDTLS_PKCS5_C
-
-/**
- * \def MBEDTLS_PKCS11_C
- *
- * Enable wrapper for PKCS#11 smartcard support.
- *
- * Module:  library/pkcs11.c
- * Caller:  library/pk.c
- *
- * Requires: MBEDTLS_PK_C
- *
- * This module enables SSL/TLS PKCS #11 smartcard support.
- * Requires the presence of the PKCS#11 helper library (libpkcs11-helper)
- */
-//#define MBEDTLS_PKCS11_C
-
-/**
- * \def MBEDTLS_PKCS12_C
- *
- * Enable PKCS#12 PBE functions.
- * Adds algorithms for parsing PKCS#8 encrypted private keys
- *
- * Module:  library/pkcs12.c
- * Caller:  library/pkparse.c
- *
- * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_CIPHER_C, MBEDTLS_MD_C
- * Can use:  MBEDTLS_ARC4_C
- *
- * This module enables PKCS#12 functions.
- */
-#define MBEDTLS_PKCS12_C
-
-/**
- * \def MBEDTLS_PLATFORM_C
- *
- * Enable the platform abstraction layer that allows you to re-assign
- * functions like calloc(), free(), snprintf(), printf(), fprintf(), exit().
- *
- * Enabling MBEDTLS_PLATFORM_C enables to use of MBEDTLS_PLATFORM_XXX_ALT
- * or MBEDTLS_PLATFORM_XXX_MACRO directives, allowing the functions mentioned
- * above to be specified at runtime or compile time respectively.
- *
- * \note This abstraction layer must be enabled on Windows (including MSYS2)
- * as other module rely on it for a fixed snprintf implementation.
- *
- * Module:  library/platform.c
- * Caller:  Most other .c files
- *
- * This module enables abstraction of common (libc) functions.
- */
-#define MBEDTLS_PLATFORM_C
-
-/**
- * \def MBEDTLS_POLY1305_C
- *
- * Enable the Poly1305 MAC algorithm.
- *
- * Module:  library/poly1305.c
- * Caller:  library/chachapoly.c
- */
-#define MBEDTLS_POLY1305_C
-
-/**
- * \def MBEDTLS_PSA_CRYPTO_C
- *
- * Enable the Platform Security Architecture cryptography API.
- *
- * \note This option only has an effect when the build option
- * USE_CRYPTO_SUBMODULE is also in use.
- *
- * \warning This feature is experimental and available on an opt-in basis only.
- * PSA APIs are subject to change at any time. The implementation comes with
- * less assurance and support than the rest of Mbed TLS.
- *
- * Module:  crypto/library/psa_crypto.c
- *
- * Requires: MBEDTLS_CTR_DRBG_C, MBEDTLS_ENTROPY_C
- *
- */
-//#define MBEDTLS_PSA_CRYPTO_C
-
-/**
- * \def MBEDTLS_PSA_CRYPTO_STORAGE_C
- *
- * Enable the Platform Security Architecture persistent key storage.
- *
- * Module:  library/psa_crypto_storage.c
- *
- * Requires: MBEDTLS_PSA_CRYPTO_C and one of either
- * MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C or MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
- * (but not both)
- *
- */
-//#define MBEDTLS_PSA_CRYPTO_STORAGE_C
-
-/**
- * \def MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C
- *
- * Enable persistent key storage over files for the
- * Platform Security Architecture cryptography API.
- *
- * Module:  library/psa_crypto_storage_file.c
- *
- * Requires: MBEDTLS_PSA_CRYPTO_C, MBEDTLS_FS_IO
- *
- */
-//#define MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C
-
-/**
- * \def MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
- *
- * Enable persistent key storage over PSA ITS for the
- * Platform Security Architecture cryptography API.
- *
- * Module:  library/psa_crypto_storage_its.c
- *
- * Requires: MBEDTLS_PSA_CRYPTO_C, MBEDTLS_PSA_HAS_ITS_IO
- *
- */
-//#define MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
-
-/**
- * \def MBEDTLS_RIPEMD160_C
- *
- * Enable the RIPEMD-160 hash algorithm.
- *
- * Module:  library/ripemd160.c
- * Caller:  library/md.c
- *
- */
-#define MBEDTLS_RIPEMD160_C
-
-/**
- * \def MBEDTLS_RSA_C
- *
- * Enable the RSA public-key cryptosystem.
- *
- * Module:  library/rsa.c
- *          library/rsa_internal.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *          library/x509.c
- *
- * This module is used by the following key exchanges:
- *      RSA, DHE-RSA, ECDHE-RSA, RSA-PSK
- *
- * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C
- */
-#define MBEDTLS_RSA_C
-
-/**
- * \def MBEDTLS_SHA1_C
- *
- * Enable the SHA1 cryptographic hash algorithm.
- *
- * Module:  library/sha1.c
- * Caller:  library/md.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *          library/x509write_crt.c
- *
- * This module is required for SSL/TLS up to version 1.1, for TLS 1.2
- * depending on the handshake parameters, and for SHA1-signed certificates.
- *
- * \warning   SHA-1 is considered a weak message digest and its use constitutes
- *            a security risk. If possible, we recommend avoiding dependencies
- *            on it, and considering stronger message digests instead.
- *
- */
-#define MBEDTLS_SHA1_C
-
-/**
- * \def MBEDTLS_SHA256_C
- *
- * Enable the SHA-224 and SHA-256 cryptographic hash algorithms.
- *
- * Module:  library/sha256.c
- * Caller:  library/entropy.c
- *          library/md.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *
- * This module adds support for SHA-224 and SHA-256.
- * This module is required for the SSL/TLS 1.2 PRF function.
- */
-#define MBEDTLS_SHA256_C
-
-/**
- * \def MBEDTLS_SHA512_C
- *
- * Enable the SHA-384 and SHA-512 cryptographic hash algorithms.
- *
- * Module:  library/sha512.c
- * Caller:  library/entropy.c
- *          library/md.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *
- * This module adds support for SHA-384 and SHA-512.
- */
-#define MBEDTLS_SHA512_C
-
-/**
- * \def MBEDTLS_SSL_CACHE_C
- *
- * Enable simple SSL cache implementation.
- *
- * Module:  library/ssl_cache.c
- * Caller:
- *
- * Requires: MBEDTLS_SSL_CACHE_C
- */
-#define MBEDTLS_SSL_CACHE_C
-
-/**
- * \def MBEDTLS_SSL_COOKIE_C
- *
- * Enable basic implementation of DTLS cookies for hello verification.
- *
- * Module:  library/ssl_cookie.c
- * Caller:
- */
-#define MBEDTLS_SSL_COOKIE_C
-
-/**
- * \def MBEDTLS_SSL_TICKET_C
- *
- * Enable an implementation of TLS server-side callbacks for session tickets.
- *
- * Module:  library/ssl_ticket.c
- * Caller:
- *
- * Requires: MBEDTLS_CIPHER_C
- */
-#define MBEDTLS_SSL_TICKET_C
-
-/**
- * \def MBEDTLS_SSL_CLI_C
- *
- * Enable the SSL/TLS client code.
- *
- * Module:  library/ssl_cli.c
- * Caller:
- *
- * Requires: MBEDTLS_SSL_TLS_C
- *
- * This module is required for SSL/TLS client support.
- */
-#define MBEDTLS_SSL_CLI_C
-
-/**
- * \def MBEDTLS_SSL_SRV_C
- *
- * Enable the SSL/TLS server code.
- *
- * Module:  library/ssl_srv.c
- * Caller:
- *
- * Requires: MBEDTLS_SSL_TLS_C
- *
- * This module is required for SSL/TLS server support.
- */
-#define MBEDTLS_SSL_SRV_C
-
-/**
- * \def MBEDTLS_SSL_TLS_C
- *
- * Enable the generic SSL/TLS code.
- *
- * Module:  library/ssl_tls.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *
- * Requires: MBEDTLS_CIPHER_C, MBEDTLS_MD_C
- *           and at least one of the MBEDTLS_SSL_PROTO_XXX defines
- *
- * This module is required for SSL/TLS.
- */
-#define MBEDTLS_SSL_TLS_C
-
-/**
- * \def MBEDTLS_THREADING_C
- *
- * Enable the threading abstraction layer.
- * By default mbed TLS assumes it is used in a non-threaded environment or that
- * contexts are not shared between threads. If you do intend to use contexts
- * between threads, you will need to enable this layer to prevent race
- * conditions. See also our Knowledge Base article about threading:
- * https://tls.mbed.org/kb/development/thread-safety-and-multi-threading
- *
- * Module:  library/threading.c
- *
- * This allows different threading implementations (self-implemented or
- * provided).
- *
- * You will have to enable either MBEDTLS_THREADING_ALT or
- * MBEDTLS_THREADING_PTHREAD.
- *
- * Enable this layer to allow use of mutexes within mbed TLS
- */
-//#define MBEDTLS_THREADING_C
-
-/**
- * \def MBEDTLS_TIMING_C
- *
- * Enable the semi-portable timing interface.
- *
- * \note The provided implementation only works on POSIX/Unix (including Linux,
- * BSD and OS X) and Windows. On other platforms, you can either disable that
- * module and provide your own implementations of the callbacks needed by
- * \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and provide
- * your own implementation of the whole module by setting
- * \c MBEDTLS_TIMING_ALT in the current file.
- *
- * \note See also our Knowledge Base article about porting to a new
- * environment:
- * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
- *
- * Module:  library/timing.c
- * Caller:  library/havege.c
- *
- * This module is used by the HAVEGE random number generator.
- */
-#define MBEDTLS_TIMING_C
-
-/**
- * \def MBEDTLS_VERSION_C
- *
- * Enable run-time version information.
- *
- * Module:  library/version.c
- *
- * This module provides run-time version information.
- */
-#define MBEDTLS_VERSION_C
-
-/**
- * \def MBEDTLS_X509_USE_C
- *
- * Enable X.509 core for using certificates.
- *
- * Module:  library/x509.c
- * Caller:  library/x509_crl.c
- *          library/x509_crt.c
- *          library/x509_csr.c
- *
- * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_BIGNUM_C, MBEDTLS_OID_C,
- *           MBEDTLS_PK_PARSE_C
- *
- * This module is required for the X.509 parsing modules.
- */
-#define MBEDTLS_X509_USE_C
-
-/**
- * \def MBEDTLS_X509_CRT_PARSE_C
- *
- * Enable X.509 certificate parsing.
- *
- * Module:  library/x509_crt.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *
- * Requires: MBEDTLS_X509_USE_C
- *
- * This module is required for X.509 certificate parsing.
- */
-#define MBEDTLS_X509_CRT_PARSE_C
-
-/**
- * \def MBEDTLS_X509_CRL_PARSE_C
- *
- * Enable X.509 CRL parsing.
- *
- * Module:  library/x509_crl.c
- * Caller:  library/x509_crt.c
- *
- * Requires: MBEDTLS_X509_USE_C
- *
- * This module is required for X.509 CRL parsing.
- */
-#define MBEDTLS_X509_CRL_PARSE_C
-
-/**
- * \def MBEDTLS_X509_CSR_PARSE_C
- *
- * Enable X.509 Certificate Signing Request (CSR) parsing.
- *
- * Module:  library/x509_csr.c
- * Caller:  library/x509_crt_write.c
- *
- * Requires: MBEDTLS_X509_USE_C
- *
- * This module is used for reading X.509 certificate request.
- */
-#define MBEDTLS_X509_CSR_PARSE_C
-
-/**
- * \def MBEDTLS_X509_CREATE_C
- *
- * Enable X.509 core for creating certificates.
- *
- * Module:  library/x509_create.c
- *
- * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_WRITE_C
- *
- * This module is the basis for creating X.509 certificates and CSRs.
- */
-#define MBEDTLS_X509_CREATE_C
-
-/**
- * \def MBEDTLS_X509_CRT_WRITE_C
- *
- * Enable creating X.509 certificates.
- *
- * Module:  library/x509_crt_write.c
- *
- * Requires: MBEDTLS_X509_CREATE_C
- *
- * This module is required for X.509 certificate creation.
- */
-#define MBEDTLS_X509_CRT_WRITE_C
-
-/**
- * \def MBEDTLS_X509_CSR_WRITE_C
- *
- * Enable creating X.509 Certificate Signing Requests (CSR).
- *
- * Module:  library/x509_csr_write.c
- *
- * Requires: MBEDTLS_X509_CREATE_C
- *
- * This module is required for X.509 certificate request writing.
- */
-#define MBEDTLS_X509_CSR_WRITE_C
-
-/**
- * \def MBEDTLS_XTEA_C
- *
- * Enable the XTEA block cipher.
- *
- * Module:  library/xtea.c
- * Caller:
- */
-#define MBEDTLS_XTEA_C
-
-/* \} name SECTION: mbed TLS modules */
-
-/**
- * \name SECTION: Module configuration options
- *
- * This section allows for the setting of module specific sizes and
- * configuration options. The default values are already present in the
- * relevant header files and should suffice for the regular use cases.
- *
- * Our advice is to enable options and change their values here
- * only if you have a good reason and know the consequences.
- *
- * Please check the respective header file for documentation on these
- * parameters (to prevent duplicate documentation).
- * \{
- */
-
-/* MPI / BIGNUM options */
-//#define MBEDTLS_MPI_WINDOW_SIZE            6 /**< Maximum windows size used. */
-//#define MBEDTLS_MPI_MAX_SIZE            1024 /**< Maximum number of bytes for usable MPIs. */
-
-/* CTR_DRBG options */
-//#define MBEDTLS_CTR_DRBG_ENTROPY_LEN               48 /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */
-//#define MBEDTLS_CTR_DRBG_RESEED_INTERVAL        10000 /**< Interval before reseed is performed by default */
-//#define MBEDTLS_CTR_DRBG_MAX_INPUT                256 /**< Maximum number of additional input bytes */
-//#define MBEDTLS_CTR_DRBG_MAX_REQUEST             1024 /**< Maximum number of requested bytes per call */
-//#define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT           384 /**< Maximum size of (re)seed buffer */
-//#define MBEDTLS_CTR_DRBG_USE_128_BIT_KEY              /**< Use 128-bit key for CTR_DRBG - may reduce security (see ctr_drbg.h) */
-
-/* HMAC_DRBG options */
-//#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL   10000 /**< Interval before reseed is performed by default */
-//#define MBEDTLS_HMAC_DRBG_MAX_INPUT           256 /**< Maximum number of additional input bytes */
-//#define MBEDTLS_HMAC_DRBG_MAX_REQUEST        1024 /**< Maximum number of requested bytes per call */
-//#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT      384 /**< Maximum size of (re)seed buffer */
-
-/* ECP options */
-//#define MBEDTLS_ECP_MAX_BITS             521 /**< Maximum bit size of groups */
-//#define MBEDTLS_ECP_WINDOW_SIZE            6 /**< Maximum window size used */
-//#define MBEDTLS_ECP_FIXED_POINT_OPTIM      1 /**< Enable fixed-point speed-up */
-
-/* Entropy options */
-//#define MBEDTLS_ENTROPY_MAX_SOURCES                20 /**< Maximum number of sources supported */
-//#define MBEDTLS_ENTROPY_MAX_GATHER                128 /**< Maximum amount requested from entropy sources */
-//#define MBEDTLS_ENTROPY_MIN_HARDWARE               32 /**< Default minimum number of bytes required for the hardware entropy source mbedtls_hardware_poll() before entropy is released */
-
-/* Memory buffer allocator options */
-//#define MBEDTLS_MEMORY_ALIGN_MULTIPLE      4 /**< Align on multiples of this value */
-
-/* Platform options */
-//#define MBEDTLS_PLATFORM_STD_MEM_HDR   <stdlib.h> /**< Header to include if MBEDTLS_PLATFORM_NO_STD_FUNCTIONS is defined. Don't define if no header is needed. */
-//#define MBEDTLS_PLATFORM_STD_CALLOC        calloc /**< Default allocator to use, can be undefined */
-//#define MBEDTLS_PLATFORM_STD_FREE            free /**< Default free to use, can be undefined */
-//#define MBEDTLS_PLATFORM_STD_EXIT            exit /**< Default exit to use, can be undefined */
-//#define MBEDTLS_PLATFORM_STD_TIME            time /**< Default time to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */
-//#define MBEDTLS_PLATFORM_STD_FPRINTF      fprintf /**< Default fprintf to use, can be undefined */
-//#define MBEDTLS_PLATFORM_STD_PRINTF        printf /**< Default printf to use, can be undefined */
-/* Note: your snprintf must correctly zero-terminate the buffer! */
-//#define MBEDTLS_PLATFORM_STD_SNPRINTF    snprintf /**< Default snprintf to use, can be undefined */
-//#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS       0 /**< Default exit value to use, can be undefined */
-//#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE       1 /**< Default exit value to use, can be undefined */
-//#define MBEDTLS_PLATFORM_STD_NV_SEED_READ   mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */
-//#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE  mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */
-//#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE  "seedfile" /**< Seed file to read/write with default implementation */
-
-/* To Use Function Macros MBEDTLS_PLATFORM_C must be enabled */
-/* MBEDTLS_PLATFORM_XXX_MACRO and MBEDTLS_PLATFORM_XXX_ALT cannot both be defined */
-//#define MBEDTLS_PLATFORM_CALLOC_MACRO        calloc /**< Default allocator macro to use, can be undefined */
-//#define MBEDTLS_PLATFORM_FREE_MACRO            free /**< Default free macro to use, can be undefined */
-//#define MBEDTLS_PLATFORM_EXIT_MACRO            exit /**< Default exit macro to use, can be undefined */
-//#define MBEDTLS_PLATFORM_TIME_MACRO            time /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */
-//#define MBEDTLS_PLATFORM_TIME_TYPE_MACRO       time_t /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */
-//#define MBEDTLS_PLATFORM_FPRINTF_MACRO      fprintf /**< Default fprintf macro to use, can be undefined */
-//#define MBEDTLS_PLATFORM_PRINTF_MACRO        printf /**< Default printf macro to use, can be undefined */
-/* Note: your snprintf must correctly zero-terminate the buffer! */
-//#define MBEDTLS_PLATFORM_SNPRINTF_MACRO    snprintf /**< Default snprintf macro to use, can be undefined */
-//#define MBEDTLS_PLATFORM_VSNPRINTF_MACRO    vsnprintf /**< Default vsnprintf macro to use, can be undefined */
-//#define MBEDTLS_PLATFORM_NV_SEED_READ_MACRO   mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */
-//#define MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO  mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */
-
-/**
- * \brief       This macro is invoked by the library when an invalid parameter
- *              is detected that is only checked with MBEDTLS_CHECK_PARAMS
- *              (see the documentation of that option for context).
- *
- *              When you leave this undefined here, a default definition is
- *              provided that invokes the function mbedtls_param_failed(),
- *              which is declared in platform_util.h for the benefit of the
- *              library, but that you need to define in your application.
- *
- *              When you define this here, this replaces the default
- *              definition in platform_util.h (which no longer declares the
- *              function mbedtls_param_failed()) and it is your responsibility
- *              to make sure this macro expands to something suitable (in
- *              particular, that all the necessary declarations are visible
- *              from within the library - you can ensure that by providing
- *              them in this file next to the macro definition).
- *
- *              Note that you may define this macro to expand to nothing, in
- *              which case you don't have to worry about declarations or
- *              definitions. However, you will then be notified about invalid
- *              parameters only in non-void functions, and void function will
- *              just silently return early on invalid parameters, which
- *              partially negates the benefits of enabling
- *              #MBEDTLS_CHECK_PARAMS in the first place, so is discouraged.
- *
- * \param cond  The expression that should evaluate to true, but doesn't.
- */
-//#define MBEDTLS_PARAM_FAILED( cond )               assert( cond )
-
-/* SSL Cache options */
-//#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT       86400 /**< 1 day  */
-//#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES      50 /**< Maximum entries in cache */
-
-/* SSL options */
-
-/** \def MBEDTLS_SSL_MAX_CONTENT_LEN
- *
- * Maximum length (in bytes) of incoming and outgoing plaintext fragments.
- *
- * This determines the size of both the incoming and outgoing TLS I/O buffers
- * in such a way that both are capable of holding the specified amount of
- * plaintext data, regardless of the protection mechanism used.
- *
- * To configure incoming and outgoing I/O buffers separately, use
- * #MBEDTLS_SSL_IN_CONTENT_LEN and #MBEDTLS_SSL_OUT_CONTENT_LEN,
- * which overwrite the value set by this option.
- *
- * \note When using a value less than the default of 16KB on the client, it is
- *       recommended to use the Maximum Fragment Length (MFL) extension to
- *       inform the server about this limitation. On the server, there
- *       is no supported, standardized way of informing the client about
- *       restriction on the maximum size of incoming messages, and unless
- *       the limitation has been communicated by other means, it is recommended
- *       to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN
- *       while keeping the default value of 16KB for the incoming buffer.
- *
- * Uncomment to set the maximum plaintext size of both
- * incoming and outgoing I/O buffers.
- */
-//#define MBEDTLS_SSL_MAX_CONTENT_LEN             16384
-
-/** \def MBEDTLS_SSL_IN_CONTENT_LEN
- *
- * Maximum length (in bytes) of incoming plaintext fragments.
- *
- * This determines the size of the incoming TLS I/O buffer in such a way
- * that it is capable of holding the specified amount of plaintext data,
- * regardless of the protection mechanism used.
- *
- * If this option is undefined, it inherits its value from
- * #MBEDTLS_SSL_MAX_CONTENT_LEN.
- *
- * \note When using a value less than the default of 16KB on the client, it is
- *       recommended to use the Maximum Fragment Length (MFL) extension to
- *       inform the server about this limitation. On the server, there
- *       is no supported, standardized way of informing the client about
- *       restriction on the maximum size of incoming messages, and unless
- *       the limitation has been communicated by other means, it is recommended
- *       to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN
- *       while keeping the default value of 16KB for the incoming buffer.
- *
- * Uncomment to set the maximum plaintext size of the incoming I/O buffer
- * independently of the outgoing I/O buffer.
- */
-//#define MBEDTLS_SSL_IN_CONTENT_LEN              16384
-
-/** \def MBEDTLS_SSL_OUT_CONTENT_LEN
- *
- * Maximum length (in bytes) of outgoing plaintext fragments.
- *
- * This determines the size of the outgoing TLS I/O buffer in such a way
- * that it is capable of holding the specified amount of plaintext data,
- * regardless of the protection mechanism used.
- *
- * If this option undefined, it inherits its value from
- * #MBEDTLS_SSL_MAX_CONTENT_LEN.
- *
- * It is possible to save RAM by setting a smaller outward buffer, while keeping
- * the default inward 16384 byte buffer to conform to the TLS specification.
- *
- * The minimum required outward buffer size is determined by the handshake
- * protocol's usage. Handshaking will fail if the outward buffer is too small.
- * The specific size requirement depends on the configured ciphers and any
- * certificate data which is sent during the handshake.
- *
- * Uncomment to set the maximum plaintext size of the outgoing I/O buffer
- * independently of the incoming I/O buffer.
- */
-//#define MBEDTLS_SSL_OUT_CONTENT_LEN             16384
-
-/** \def MBEDTLS_SSL_DTLS_MAX_BUFFERING
- *
- * Maximum number of heap-allocated bytes for the purpose of
- * DTLS handshake message reassembly and future message buffering.
- *
- * This should be at least 9/8 * MBEDTLSSL_IN_CONTENT_LEN
- * to account for a reassembled handshake message of maximum size,
- * together with its reassembly bitmap.
- *
- * A value of 2 * MBEDTLS_SSL_IN_CONTENT_LEN (32768 by default)
- * should be sufficient for all practical situations as it allows
- * to reassembly a large handshake message (such as a certificate)
- * while buffering multiple smaller handshake messages.
- *
- */
-//#define MBEDTLS_SSL_DTLS_MAX_BUFFERING             32768
-
-//#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME     86400 /**< Lifetime of session tickets (if enabled) */
-//#define MBEDTLS_PSK_MAX_LEN               32 /**< Max size of TLS pre-shared keys, in bytes (default 256 bits) */
-//#define MBEDTLS_SSL_COOKIE_TIMEOUT        60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */
-
-/**
- * Complete list of ciphersuites to use, in order of preference.
- *
- * \warning No dependency checking is done on that field! This option can only
- * be used to restrict the set of available ciphersuites. It is your
- * responsibility to make sure the needed modules are active.
- *
- * Use this to save a few hundred bytes of ROM (default ordering of all
- * available ciphersuites) and a few to a few hundred bytes of RAM.
- *
- * The value below is only an example, not the default.
- */
-//#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
-
-/* X509 options */
-//#define MBEDTLS_X509_MAX_INTERMEDIATE_CA   8   /**< Maximum number of intermediate CAs in a verification chain. */
-//#define MBEDTLS_X509_MAX_FILE_PATH_LEN     512 /**< Maximum length of a path/filename string in bytes including the null terminator character ('\0'). */
-
-/**
- * Allow SHA-1 in the default TLS configuration for certificate signing.
- * Without this build-time option, SHA-1 support must be activated explicitly
- * through mbedtls_ssl_conf_cert_profile. Turning on this option is not
- * recommended because of it is possible to generate SHA-1 collisions, however
- * this may be safe for legacy infrastructure where additional controls apply.
- *
- * \warning   SHA-1 is considered a weak message digest and its use constitutes
- *            a security risk. If possible, we recommend avoiding dependencies
- *            on it, and considering stronger message digests instead.
- *
- */
-// #define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES
-
-/**
- * Allow SHA-1 in the default TLS configuration for TLS 1.2 handshake
- * signature and ciphersuite selection. Without this build-time option, SHA-1
- * support must be activated explicitly through mbedtls_ssl_conf_sig_hashes.
- * The use of SHA-1 in TLS <= 1.1 and in HMAC-SHA-1 is always allowed by
- * default. At the time of writing, there is no practical attack on the use
- * of SHA-1 in handshake signatures, hence this option is turned on by default
- * to preserve compatibility with existing peers, but the general
- * warning applies nonetheless:
- *
- * \warning   SHA-1 is considered a weak message digest and its use constitutes
- *            a security risk. If possible, we recommend avoiding dependencies
- *            on it, and considering stronger message digests instead.
- *
- */
-#define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE
-
-/**
- * Uncomment the macro to let mbed TLS use your alternate implementation of
- * mbedtls_platform_zeroize(). This replaces the default implementation in
- * platform_util.c.
- *
- * mbedtls_platform_zeroize() is a widely used function across the library to
- * zero a block of memory. The implementation is expected to be secure in the
- * sense that it has been written to prevent the compiler from removing calls
- * to mbedtls_platform_zeroize() as part of redundant code elimination
- * optimizations. However, it is difficult to guarantee that calls to
- * mbedtls_platform_zeroize() will not be optimized by the compiler as older
- * versions of the C language standards do not provide a secure implementation
- * of memset(). Therefore, MBEDTLS_PLATFORM_ZEROIZE_ALT enables users to
- * configure their own implementation of mbedtls_platform_zeroize(), for
- * example by using directives specific to their compiler, features from newer
- * C standards (e.g using memset_s() in C11) or calling a secure memset() from
- * their system (e.g explicit_bzero() in BSD).
- */
-//#define MBEDTLS_PLATFORM_ZEROIZE_ALT
-
-/**
- * Uncomment the macro to let Mbed TLS use your alternate implementation of
- * mbedtls_platform_gmtime_r(). This replaces the default implementation in
- * platform_util.c.
- *
- * gmtime() is not a thread-safe function as defined in the C standard. The
- * library will try to use safer implementations of this function, such as
- * gmtime_r() when available. However, if Mbed TLS cannot identify the target
- * system, the implementation of mbedtls_platform_gmtime_r() will default to
- * using the standard gmtime(). In this case, calls from the library to
- * gmtime() will be guarded by the global mutex mbedtls_threading_gmtime_mutex
- * if MBEDTLS_THREADING_C is enabled. We recommend that calls from outside the
- * library are also guarded with this mutex to avoid race conditions. However,
- * if the macro MBEDTLS_PLATFORM_GMTIME_R_ALT is defined, Mbed TLS will
- * unconditionally use the implementation for mbedtls_platform_gmtime_r()
- * supplied at compile time.
- */
-//#define MBEDTLS_PLATFORM_GMTIME_R_ALT
-
-/* \} name SECTION: Customisation configuration options */
-
-/* Target and application specific configurations
- *
- * Allow user to override any previous default.
- *
- */
-#if defined(MBEDTLS_USER_CONFIG_FILE)
-#include MBEDTLS_USER_CONFIG_FILE
-#endif
-
-#include "check_config.h"
-
-#endif /* MBEDTLS_CONFIG_H */
diff --git a/configs/config-mini-tls1_1.h b/configs/config-mini-tls1_1.h
deleted file mode 100644
index d4743bb..0000000
--- a/configs/config-mini-tls1_1.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/**
- * \file config-mini-tls1_1.h
- *
- * \brief Minimal configuration for TLS 1.1 (RFC 4346)
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- * Minimal configuration for TLS 1.1 (RFC 4346), implementing only the
- * required ciphersuite: MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
- *
- * See README.txt for usage instructions.
- */
-
-#ifndef MBEDTLS_CONFIG_H
-#define MBEDTLS_CONFIG_H
-
-/* System support */
-#define MBEDTLS_HAVE_ASM
-#define MBEDTLS_HAVE_TIME
-
-/* mbed TLS feature support */
-#define MBEDTLS_CIPHER_MODE_CBC
-#define MBEDTLS_PKCS1_V15
-#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
-#define MBEDTLS_SSL_PROTO_TLS1_1
-
-/* mbed TLS modules */
-#define MBEDTLS_AES_C
-#define MBEDTLS_ASN1_PARSE_C
-#define MBEDTLS_ASN1_WRITE_C
-#define MBEDTLS_BIGNUM_C
-#define MBEDTLS_CIPHER_C
-#define MBEDTLS_CTR_DRBG_C
-#define MBEDTLS_DES_C
-#define MBEDTLS_ENTROPY_C
-#define MBEDTLS_MD_C
-#define MBEDTLS_MD5_C
-#define MBEDTLS_NET_C
-#define MBEDTLS_OID_C
-#define MBEDTLS_PK_C
-#define MBEDTLS_PK_PARSE_C
-#define MBEDTLS_RSA_C
-#define MBEDTLS_SHA1_C
-#define MBEDTLS_SHA256_C
-#define MBEDTLS_SSL_CLI_C
-#define MBEDTLS_SSL_SRV_C
-#define MBEDTLS_SSL_TLS_C
-#define MBEDTLS_X509_CRT_PARSE_C
-#define MBEDTLS_X509_USE_C
-
-/* For test certificates */
-#define MBEDTLS_BASE64_C
-#define MBEDTLS_CERTS_C
-#define MBEDTLS_PEM_PARSE_C
-
-#include "mbedtls/check_config.h"
-
-#endif /* MBEDTLS_CONFIG_H */
diff --git a/configs/config-no-entropy.h b/configs/config-no-entropy.h
index 7d34ad5..6f44899 100644
--- a/configs/config-no-entropy.h
+++ b/configs/config-no-entropy.h
@@ -41,7 +41,6 @@
 /* mbed TLS feature support */
 #define MBEDTLS_CIPHER_MODE_CBC
 #define MBEDTLS_CIPHER_PADDING_PKCS7
-#define MBEDTLS_REMOVE_ARC4_CIPHERSUITES
 #define MBEDTLS_ECP_DP_SECP256R1_ENABLED
 #define MBEDTLS_ECP_DP_SECP384R1_ENABLED
 #define MBEDTLS_ECP_DP_CURVE25519_ENABLED
@@ -52,8 +51,6 @@
 #define MBEDTLS_PKCS1_V21
 #define MBEDTLS_SELF_TEST
 #define MBEDTLS_VERSION_FEATURES
-#define MBEDTLS_X509_CHECK_KEY_USAGE
-#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
 
 /* mbed TLS modules */
 #define MBEDTLS_AES_C
@@ -79,9 +76,6 @@
 #define MBEDTLS_SHA256_C
 #define MBEDTLS_SHA512_C
 #define MBEDTLS_VERSION_C
-#define MBEDTLS_X509_USE_C
-#define MBEDTLS_X509_CRT_PARSE_C
-#define MBEDTLS_X509_CRL_PARSE_C
 //#define MBEDTLS_CMAC_C
 
 /* Miscellaneous options */
diff --git a/configs/config-psa-crypto.h b/configs/config-psa-crypto.h
index 4873c36..97a1b2b 100644
--- a/configs/config-psa-crypto.h
+++ b/configs/config-psa-crypto.h
@@ -614,29 +614,10 @@
  * Warning: Only do so when you know what you are doing. This allows for
  * encryption or channels without any security!
  *
- * Requires MBEDTLS_ENABLE_WEAK_CIPHERSUITES as well to enable
- * the following ciphersuites:
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA
- *      MBEDTLS_TLS_RSA_WITH_NULL_SHA256
- *      MBEDTLS_TLS_RSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_RSA_WITH_NULL_MD5
- *      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA
- *      MBEDTLS_TLS_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_PSK_WITH_NULL_SHA
+ * This module is required to support the TLS ciphersuites that use the NULL
+ * cipher.
  *
- * Uncomment this macro to enable the NULL cipher and ciphersuites
+ * Uncomment this macro to enable the NULL cipher
  */
 //#define MBEDTLS_CIPHER_NULL_CIPHER
 
@@ -657,37 +638,6 @@
 #define MBEDTLS_CIPHER_PADDING_ZEROS
 
 /**
- * \def MBEDTLS_ENABLE_WEAK_CIPHERSUITES
- *
- * Enable weak ciphersuites in SSL / TLS.
- * Warning: Only do so when you know what you are doing. This allows for
- * channels with virtually no security at all!
- *
- * This enables the following ciphersuites:
- *      MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA
- *
- * Uncomment this macro to enable weak ciphersuites
- *
- * \warning   DES is considered a weak cipher and its use constitutes a
- *            security risk. We recommend considering stronger ciphers instead.
- */
-//#define MBEDTLS_ENABLE_WEAK_CIPHERSUITES
-
-/**
- * \def MBEDTLS_REMOVE_ARC4_CIPHERSUITES
- *
- * Remove RC4 ciphersuites by default in SSL / TLS.
- * This flag removes the ciphersuites based on RC4 from the default list as
- * returned by mbedtls_ssl_list_ciphersuites(). However, it is still possible to
- * enable (some of) them with mbedtls_ssl_conf_ciphersuites() by including them
- * explicitly.
- *
- * Uncomment this macro to remove RC4 ciphersuites by default.
- */
-#define MBEDTLS_REMOVE_ARC4_CIPHERSUITES
-
-/**
  * \def MBEDTLS_ECP_DP_SECP192R1_ENABLED
  *
  * MBEDTLS_ECP_XXXX_ENABLED: Enables specific curves within the Elliptic Curve
@@ -759,281 +709,6 @@
 #define MBEDTLS_ECDSA_DETERMINISTIC
 
 /**
- * \def MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
- *
- * Enable the PSK based ciphersuite modes in SSL / TLS.
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED
- *
- * Enable the DHE-PSK based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_DHM_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA
- *
- * \warning    Using DHE constitutes a security risk as it
- *             is not possible to validate custom DH parameters.
- *             If possible, it is recommended users should consider
- *             preferring other methods of key exchange.
- *             See dhm.h for more details.
- *
- */
-#define MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
- *
- * Enable the ECDHE-PSK based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED
- *
- * Enable the RSA-PSK based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
- *
- * Enable the RSA-only based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
- */
-#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED
- *
- * Enable the DHE-RSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_DHM_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- *
- * \warning    Using DHE constitutes a security risk as it
- *             is not possible to validate custom DH parameters.
- *             If possible, it is recommended users should consider
- *             preferring other methods of key exchange.
- *             See dhm.h for more details.
- *
- */
-#define MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
- *
- * Enable the ECDHE-RSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
- *
- * Enable the ECDHE-ECDSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_ECDSA_C, MBEDTLS_X509_CRT_PARSE_C,
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED
- *
- * Enable the ECDH-ECDSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
- *
- * Enable the ECDH-RSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
- *
- * Enable the ECJPAKE based ciphersuite modes in SSL / TLS.
- *
- * \warning This is currently experimental. EC J-PAKE support is based on the
- * Thread v1.0.0 specification; incompatible changes to the specification
- * might still happen. For this reason, this is disabled by default.
- *
- * Requires: MBEDTLS_ECJPAKE_C
- *           MBEDTLS_SHA256_C
- *           MBEDTLS_ECP_DP_SECP256R1_ENABLED
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8
- */
-//#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
-
-/**
  * \def MBEDTLS_PK_PARSE_EC_EXTENDED
  *
  * Enhance support for reading EC keys using variants of SEC1 not allowed by
@@ -1279,373 +954,6 @@
 //#define MBEDTLS_SHA256_SMALLER
 
 /**
- * \def MBEDTLS_SSL_ALL_ALERT_MESSAGES
- *
- * Enable sending of alert messages in case of encountered errors as per RFC.
- * If you choose not to send the alert messages, mbed TLS can still communicate
- * with other servers, only debugging of failures is harder.
- *
- * The advantage of not sending alert messages, is that no information is given
- * about reasons for failures thus preventing adversaries of gaining intel.
- *
- * Enable sending of all alert messages
- */
-#define MBEDTLS_SSL_ALL_ALERT_MESSAGES
-
-/**
- * \def MBEDTLS_SSL_ASYNC_PRIVATE
- *
- * Enable asynchronous external private key operations in SSL. This allows
- * you to configure an SSL connection to call an external cryptographic
- * module to perform private key operations instead of performing the
- * operation inside the library.
- *
- */
-//#define MBEDTLS_SSL_ASYNC_PRIVATE
-
-/**
- * \def MBEDTLS_SSL_DEBUG_ALL
- *
- * Enable the debug messages in SSL module for all issues.
- * Debug messages have been disabled in some places to prevent timing
- * attacks due to (unbalanced) debugging function calls.
- *
- * If you need all error reporting you should enable this during debugging,
- * but remove this for production servers that should log as well.
- *
- * Uncomment this macro to report all debug messages on errors introducing
- * a timing side-channel.
- *
- */
-//#define MBEDTLS_SSL_DEBUG_ALL
-
-/** \def MBEDTLS_SSL_ENCRYPT_THEN_MAC
- *
- * Enable support for Encrypt-then-MAC, RFC 7366.
- *
- * This allows peers that both support it to use a more robust protection for
- * ciphersuites using CBC, providing deep resistance against timing attacks
- * on the padding or underlying cipher.
- *
- * This only affects CBC ciphersuites, and is useless if none is defined.
- *
- * Requires: MBEDTLS_SSL_PROTO_TLS1    or
- *           MBEDTLS_SSL_PROTO_TLS1_1  or
- *           MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Comment this macro to disable support for Encrypt-then-MAC
- */
-#define MBEDTLS_SSL_ENCRYPT_THEN_MAC
-
-/** \def MBEDTLS_SSL_EXTENDED_MASTER_SECRET
- *
- * Enable support for Extended Master Secret, aka Session Hash
- * (draft-ietf-tls-session-hash-02).
- *
- * This was introduced as "the proper fix" to the Triple Handshake familiy of
- * attacks, but it is recommended to always use it (even if you disable
- * renegotiation), since it actually fixes a more fundamental issue in the
- * original SSL/TLS design, and has implications beyond Triple Handshake.
- *
- * Requires: MBEDTLS_SSL_PROTO_TLS1    or
- *           MBEDTLS_SSL_PROTO_TLS1_1  or
- *           MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Comment this macro to disable support for Extended Master Secret.
- */
-#define MBEDTLS_SSL_EXTENDED_MASTER_SECRET
-
-/**
- * \def MBEDTLS_SSL_FALLBACK_SCSV
- *
- * Enable support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv-00).
- *
- * For servers, it is recommended to always enable this, unless you support
- * only one version of TLS, or know for sure that none of your clients
- * implements a fallback strategy.
- *
- * For clients, you only need this if you're using a fallback strategy, which
- * is not recommended in the first place, unless you absolutely need it to
- * interoperate with buggy (version-intolerant) servers.
- *
- * Comment this macro to disable support for FALLBACK_SCSV
- */
-#define MBEDTLS_SSL_FALLBACK_SCSV
-
-/**
- * \def MBEDTLS_SSL_HW_RECORD_ACCEL
- *
- * Enable hooking functions in SSL module for hardware acceleration of
- * individual records.
- *
- * Uncomment this macro to enable hooking functions.
- */
-//#define MBEDTLS_SSL_HW_RECORD_ACCEL
-
-/**
- * \def MBEDTLS_SSL_CBC_RECORD_SPLITTING
- *
- * Enable 1/n-1 record splitting for CBC mode in SSLv3 and TLS 1.0.
- *
- * This is a countermeasure to the BEAST attack, which also minimizes the risk
- * of interoperability issues compared to sending 0-length records.
- *
- * Comment this macro to disable 1/n-1 record splitting.
- */
-#define MBEDTLS_SSL_CBC_RECORD_SPLITTING
-
-/**
- * \def MBEDTLS_SSL_RENEGOTIATION
- *
- * Enable support for TLS renegotiation.
- *
- * The two main uses of renegotiation are (1) refresh keys on long-lived
- * connections and (2) client authentication after the initial handshake.
- * If you don't need renegotiation, it's probably better to disable it, since
- * it has been associated with security issues in the past and is easy to
- * misuse/misunderstand.
- *
- * Comment this to disable support for renegotiation.
- *
- * \note   Even if this option is disabled, both client and server are aware
- *         of the Renegotiation Indication Extension (RFC 5746) used to
- *         prevent the SSL renegotiation attack (see RFC 5746 Sect. 1).
- *         (See \c mbedtls_ssl_conf_legacy_renegotiation for the
- *          configuration of this extension).
- *
- */
-#define MBEDTLS_SSL_RENEGOTIATION
-
-/**
- * \def MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO
- *
- * Enable support for receiving and parsing SSLv2 Client Hello messages for the
- * SSL Server module (MBEDTLS_SSL_SRV_C).
- *
- * Uncomment this macro to enable support for SSLv2 Client Hello messages.
- */
-//#define MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO
-
-/**
- * \def MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE
- *
- * Pick the ciphersuite according to the client's preferences rather than ours
- * in the SSL Server module (MBEDTLS_SSL_SRV_C).
- *
- * Uncomment this macro to respect client's ciphersuite order
- */
-//#define MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE
-
-/**
- * \def MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
- *
- * Enable support for RFC 6066 max_fragment_length extension in SSL.
- *
- * Comment this macro to disable support for the max_fragment_length extension
- */
-#define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
-
-/**
- * \def MBEDTLS_SSL_PROTO_SSL3
- *
- * Enable support for SSL 3.0.
- *
- * Requires: MBEDTLS_MD5_C
- *           MBEDTLS_SHA1_C
- *
- * Comment this macro to disable support for SSL 3.0
- */
-//#define MBEDTLS_SSL_PROTO_SSL3
-
-/**
- * \def MBEDTLS_SSL_PROTO_TLS1
- *
- * Enable support for TLS 1.0.
- *
- * Requires: MBEDTLS_MD5_C
- *           MBEDTLS_SHA1_C
- *
- * Comment this macro to disable support for TLS 1.0
- */
-#define MBEDTLS_SSL_PROTO_TLS1
-
-/**
- * \def MBEDTLS_SSL_PROTO_TLS1_1
- *
- * Enable support for TLS 1.1 (and DTLS 1.0 if DTLS is enabled).
- *
- * Requires: MBEDTLS_MD5_C
- *           MBEDTLS_SHA1_C
- *
- * Comment this macro to disable support for TLS 1.1 / DTLS 1.0
- */
-#define MBEDTLS_SSL_PROTO_TLS1_1
-
-/**
- * \def MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Enable support for TLS 1.2 (and DTLS 1.2 if DTLS is enabled).
- *
- * Requires: MBEDTLS_SHA1_C or MBEDTLS_SHA256_C or MBEDTLS_SHA512_C
- *           (Depends on ciphersuites)
- *
- * Comment this macro to disable support for TLS 1.2 / DTLS 1.2
- */
-#define MBEDTLS_SSL_PROTO_TLS1_2
-
-/**
- * \def MBEDTLS_SSL_PROTO_DTLS
- *
- * Enable support for DTLS (all available versions).
- *
- * Enable this and MBEDTLS_SSL_PROTO_TLS1_1 to enable DTLS 1.0,
- * and/or this and MBEDTLS_SSL_PROTO_TLS1_2 to enable DTLS 1.2.
- *
- * Requires: MBEDTLS_SSL_PROTO_TLS1_1
- *        or MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Comment this macro to disable support for DTLS
- */
-#define MBEDTLS_SSL_PROTO_DTLS
-
-/**
- * \def MBEDTLS_SSL_ALPN
- *
- * Enable support for RFC 7301 Application Layer Protocol Negotiation.
- *
- * Comment this macro to disable support for ALPN.
- */
-#define MBEDTLS_SSL_ALPN
-
-/**
- * \def MBEDTLS_SSL_DTLS_ANTI_REPLAY
- *
- * Enable support for the anti-replay mechanism in DTLS.
- *
- * Requires: MBEDTLS_SSL_TLS_C
- *           MBEDTLS_SSL_PROTO_DTLS
- *
- * \warning Disabling this is often a security risk!
- * See mbedtls_ssl_conf_dtls_anti_replay() for details.
- *
- * Comment this to disable anti-replay in DTLS.
- */
-#define MBEDTLS_SSL_DTLS_ANTI_REPLAY
-
-/**
- * \def MBEDTLS_SSL_DTLS_HELLO_VERIFY
- *
- * Enable support for HelloVerifyRequest on DTLS servers.
- *
- * This feature is highly recommended to prevent DTLS servers being used as
- * amplifiers in DoS attacks against other hosts. It should always be enabled
- * unless you know for sure amplification cannot be a problem in the
- * environment in which your server operates.
- *
- * \warning Disabling this can ba a security risk! (see above)
- *
- * Requires: MBEDTLS_SSL_PROTO_DTLS
- *
- * Comment this to disable support for HelloVerifyRequest.
- */
-#define MBEDTLS_SSL_DTLS_HELLO_VERIFY
-
-/**
- * \def MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE
- *
- * Enable server-side support for clients that reconnect from the same port.
- *
- * Some clients unexpectedly close the connection and try to reconnect using the
- * same source port. This needs special support from the server to handle the
- * new connection securely, as described in section 4.2.8 of RFC 6347. This
- * flag enables that support.
- *
- * Requires: MBEDTLS_SSL_DTLS_HELLO_VERIFY
- *
- * Comment this to disable support for clients reusing the source port.
- */
-#define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE
-
-/**
- * \def MBEDTLS_SSL_DTLS_BADMAC_LIMIT
- *
- * Enable support for a limit of records with bad MAC.
- *
- * See mbedtls_ssl_conf_dtls_badmac_limit().
- *
- * Requires: MBEDTLS_SSL_PROTO_DTLS
- */
-#define MBEDTLS_SSL_DTLS_BADMAC_LIMIT
-
-/**
- * \def MBEDTLS_SSL_SESSION_TICKETS
- *
- * Enable support for RFC 5077 session tickets in SSL.
- * Client-side, provides full support for session tickets (maintenance of a
- * session store remains the responsibility of the application, though).
- * Server-side, you also need to provide callbacks for writing and parsing
- * tickets, including authenticated encryption and key management. Example
- * callbacks are provided by MBEDTLS_SSL_TICKET_C.
- *
- * Comment this macro to disable support for SSL session tickets
- */
-#define MBEDTLS_SSL_SESSION_TICKETS
-
-/**
- * \def MBEDTLS_SSL_EXPORT_KEYS
- *
- * Enable support for exporting key block and master secret.
- * This is required for certain users of TLS, e.g. EAP-TLS.
- *
- * Comment this macro to disable support for key export
- */
-#define MBEDTLS_SSL_EXPORT_KEYS
-
-/**
- * \def MBEDTLS_SSL_SERVER_NAME_INDICATION
- *
- * Enable support for RFC 6066 server name indication (SNI) in SSL.
- *
- * Requires: MBEDTLS_X509_CRT_PARSE_C
- *
- * Comment this macro to disable support for server name indication in SSL
- */
-#define MBEDTLS_SSL_SERVER_NAME_INDICATION
-
-/**
- * \def MBEDTLS_SSL_TRUNCATED_HMAC
- *
- * Enable support for RFC 6066 truncated HMAC in SSL.
- *
- * Comment this macro to disable support for truncated HMAC in SSL
- */
-#define MBEDTLS_SSL_TRUNCATED_HMAC
-
-/**
- * \def MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT
- *
- * Fallback to old (pre-2.7), non-conforming implementation of the truncated
- * HMAC extension which also truncates the HMAC key. Note that this option is
- * only meant for a transitory upgrade period and is likely to be removed in
- * a future version of the library.
- *
- * \warning The old implementation is non-compliant and has a security weakness
- *          (2^80 brute force attack on the HMAC key used for a single,
- *          uninterrupted connection). This should only be enabled temporarily
- *          when (1) the use of truncated HMAC is essential in order to save
- *          bandwidth, and (2) the peer is an Mbed TLS stack that doesn't use
- *          the fixed implementation yet (pre-2.7).
- *
- * \deprecated This option is deprecated and will likely be removed in a
- *             future version of Mbed TLS.
- *
- * Uncomment to fallback to old, non-compliant truncated HMAC implementation.
- *
- * Requires: MBEDTLS_SSL_TRUNCATED_HMAC
- */
-//#define MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT
-
-/**
  * \def MBEDTLS_THREADING_ALT
  *
  * Provide your own alternate threading implementation.
@@ -1698,89 +1006,6 @@
  */
 #define MBEDTLS_VERSION_FEATURES
 
-/**
- * \def MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
- *
- * If set, the X509 parser will not break-off when parsing an X509 certificate
- * and encountering an extension in a v1 or v2 certificate.
- *
- * Uncomment to prevent an error.
- */
-//#define MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
-
-/**
- * \def MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
- *
- * If set, the X509 parser will not break-off when parsing an X509 certificate
- * and encountering an unknown critical extension.
- *
- * \warning Depending on your PKI use, enabling this can be a security risk!
- *
- * Uncomment to prevent an error.
- */
-//#define MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
-
-/**
- * \def MBEDTLS_X509_CHECK_KEY_USAGE
- *
- * Enable verification of the keyUsage extension (CA and leaf certificates).
- *
- * Disabling this avoids problems with mis-issued and/or misused
- * (intermediate) CA and leaf certificates.
- *
- * \warning Depending on your PKI use, disabling this can be a security risk!
- *
- * Comment to skip keyUsage checking for both CA and leaf certificates.
- */
-#define MBEDTLS_X509_CHECK_KEY_USAGE
-
-/**
- * \def MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
- *
- * Enable verification of the extendedKeyUsage extension (leaf certificates).
- *
- * Disabling this avoids problems with mis-issued and/or misused certificates.
- *
- * \warning Depending on your PKI use, disabling this can be a security risk!
- *
- * Comment to skip extendedKeyUsage checking for certificates.
- */
-#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
-
-/**
- * \def MBEDTLS_X509_RSASSA_PSS_SUPPORT
- *
- * Enable parsing and verification of X.509 certificates, CRLs and CSRS
- * signed with RSASSA-PSS (aka PKCS#1 v2.1).
- *
- * Comment this macro to disallow using RSASSA-PSS in certificates.
- */
-#define MBEDTLS_X509_RSASSA_PSS_SUPPORT
-
-/**
- * \def MBEDTLS_ZLIB_SUPPORT
- *
- * If set, the SSL/TLS module uses ZLIB to support compression and
- * decompression of packet data.
- *
- * \warning TLS-level compression MAY REDUCE SECURITY! See for example the
- * CRIME attack. Before enabling this option, you should examine with care if
- * CRIME or similar exploits may be applicable to your use case.
- *
- * \note Currently compression can't be used with DTLS.
- *
- * \deprecated This feature is deprecated and will be removed
- *             in the next major revision of the library.
- *
- * Used in: library/ssl_tls.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *
- * This feature requires zlib library and headers to be present.
- *
- * Uncomment to enable use of ZLIB
- */
-//#define MBEDTLS_ZLIB_SUPPORT
 /* \} name SECTION: mbed TLS feature support */
 
 /**
@@ -1814,66 +1039,8 @@
  *          library/pem.c
  *          library/ctr_drbg.c
  *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA
+ * This module is required to support the TLS ciphersuites that use the AES
+ * cipher.
  *
  * PEM_PARSE uses AES for decrypting encrypted keys.
  */
@@ -1887,18 +1054,8 @@
  * Module:  library/arc4.c
  * Caller:  library/cipher.c
  *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
- *      MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
+ * This module is required to support the TLS ciphersuites that use the ARC4
+ * cipher.
  *
  * \warning   ARC4 is considered a weak cipher and its use constitutes a
  *            security risk. If possible, we recommend avoidng dependencies on
@@ -1913,8 +1070,7 @@
  * Enable the generic ASN1 parser.
  *
  * Module:  library/asn1.c
- * Caller:  library/x509.c
- *          library/dhm.c
+ * Caller:  library/dhm.c
  *          library/pkcs12.c
  *          library/pkcs5.c
  *          library/pkparse.c
@@ -1929,9 +1085,6 @@
  * Module:  library/asn1write.c
  * Caller:  library/ecdsa.c
  *          library/pkwrite.c
- *          library/x509_create.c
- *          library/x509write_crt.c
- *          library/x509write_csr.c
  */
 #define MBEDTLS_ASN1_WRITE_C
 
@@ -1958,7 +1111,6 @@
  *          library/ecdsa.c
  *          library/rsa.c
  *          library/rsa_internal.c
- *          library/ssl_tls.c
  *
  * This module is required for RSA, DHM and ECC (ECDH, ECDSA) support.
  */
@@ -1981,50 +1133,8 @@
  * Module:  library/camellia.c
  * Caller:  library/cipher.c
  *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256
+ * This module is required to support the TLS ciphersuites that use the
+ * Camellia cipher.
  */
 #define MBEDTLS_CAMELLIA_C
 
@@ -2036,47 +1146,8 @@
  * Module:  library/aria.c
  * Caller:  library/cipher.c
  *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *
- *      MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384
+ * This module is required to support the TLS ciphersuites that use the
+ * ARIA cipher.
  */
 //#define MBEDTLS_ARIA_C
 
@@ -2089,24 +1160,11 @@
  *
  * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
  *
- * This module enables the AES-CCM ciphersuites, if other requisites are
- * enabled as well.
+ * This module is required to support AES-CCM ciphersuites in TLS.
  */
 #define MBEDTLS_CCM_C
 
 /**
- * \def MBEDTLS_CERTS_C
- *
- * Enable the test certificates.
- *
- * Module:  library/certs.c
- * Caller:
- *
- * This module is used for testing (ssl_client/server).
- */
-#define MBEDTLS_CERTS_C
-
-/**
  * \def MBEDTLS_CHACHA20_C
  *
  * Enable the ChaCha20 stream cipher.
@@ -2132,7 +1190,6 @@
  * Enable the generic cipher layer.
  *
  * Module:  library/cipher.c
- * Caller:  library/ssl_tls.c
  *
  * Uncomment to enable generic cipher wrappers.
  */
@@ -2168,20 +1225,6 @@
 #define MBEDTLS_CTR_DRBG_C
 
 /**
- * \def MBEDTLS_DEBUG_C
- *
- * Enable the debug functions.
- *
- * Module:  library/debug.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *
- * This module provides debugging functions.
- */
-#define MBEDTLS_DEBUG_C
-
-/**
  * \def MBEDTLS_DES_C
  *
  * Enable the DES block cipher.
@@ -2190,18 +1233,8 @@
  * Caller:  library/pem.c
  *          library/cipher.c
  *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
+ * This module is required to support the TLS ciphersuites that use the DES
+ * cipher.
  *
  * PEM_PARSE uses DES/3DES for decrypting encrypted keys.
  *
@@ -2216,8 +1249,6 @@
  * Enable the Diffie-Hellman-Merkle module.
  *
  * Module:  library/dhm.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
  *
  * This module is used by the following key exchanges:
  *      DHE-RSA, DHE-PSK
@@ -2237,8 +1268,6 @@
  * Enable the elliptic curve Diffie-Hellman library.
  *
  * Module:  library/ecdh.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
  *
  * This module is used by the following key exchanges:
  *      ECDHE-ECDSA, ECDHE-RSA, DHE-PSK
@@ -2330,8 +1359,7 @@
  *
  * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
  *
- * This module enables the AES-GCM and CAMELLIA-GCM ciphersuites, if other
- * requisites are enabled as well.
+ * This module is required to support the TLS ciphersuites that use GCM.
  */
 #define MBEDTLS_GCM_C
 
@@ -2454,7 +1482,6 @@
  * Module:  library/md5.c
  * Caller:  library/md.c
  *          library/pem.c
- *          library/ssl_tls.c
  *
  * This module is required for SSL/TLS up to version 1.1, and for TLS 1.2
  * depending on the handshake parameters. Further, it is used for checking
@@ -2485,25 +1512,6 @@
 //#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
 
 /**
- * \def MBEDTLS_NET_C
- *
- * Enable the TCP and UDP over IPv6/IPv4 networking routines.
- *
- * \note This module only works on POSIX/Unix (including Linux, BSD and OS X)
- * and Windows. For other platforms, you'll want to disable it, and write your
- * own networking callbacks to be passed to \c mbedtls_ssl_set_bio().
- *
- * \note See also our Knowledge Base article about porting to a new
- * environment:
- * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
- *
- * Module:  library/net_sockets.c
- *
- * This module provides networking routines.
- */
-#define MBEDTLS_NET_C
-
-/**
  * \def MBEDTLS_OID_C
  *
  * Enable the OID database.
@@ -2514,13 +1522,6 @@
  *          library/pkparse.c
  *          library/pkwrite.c
  *          library/rsa.c
- *          library/x509.c
- *          library/x509_create.c
- *          library/x509_crl.c
- *          library/x509_crt.c
- *          library/x509_csr.c
- *          library/x509write_crt.c
- *          library/x509write_csr.c
  *
  * This modules translates between OIDs and internal values.
  */
@@ -2548,9 +1549,6 @@
  * Module:  library/pem.c
  * Caller:  library/dhm.c
  *          library/pkparse.c
- *          library/x509_crl.c
- *          library/x509_crt.c
- *          library/x509_csr.c
  *
  * Requires: MBEDTLS_BASE64_C
  *
@@ -2565,8 +1563,6 @@
  *
  * Module:  library/pem.c
  * Caller:  library/pkwrite.c
- *          library/x509write_crt.c
- *          library/x509write_csr.c
  *
  * Requires: MBEDTLS_BASE64_C
  *
@@ -2580,9 +1576,6 @@
  * Enable the generic public (asymetric) key layer.
  *
  * Module:  library/pk.c
- * Caller:  library/ssl_tls.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
  *
  * Requires: MBEDTLS_RSA_C or MBEDTLS_ECP_C
  *
@@ -2596,8 +1589,6 @@
  * Enable the generic public (asymetric) key parser.
  *
  * Module:  library/pkparse.c
- * Caller:  library/x509_crt.c
- *          library/x509_csr.c
  *
  * Requires: MBEDTLS_PK_C
  *
@@ -2611,7 +1602,6 @@
  * Enable the generic public (asymetric) key writer.
  *
  * Module:  library/pkwrite.c
- * Caller:  library/x509write.c
  *
  * Requires: MBEDTLS_PK_C
  *
@@ -2633,21 +1623,6 @@
 #define MBEDTLS_PKCS5_C
 
 /**
- * \def MBEDTLS_PKCS11_C
- *
- * Enable wrapper for PKCS#11 smartcard support.
- *
- * Module:  library/pkcs11.c
- * Caller:  library/pk.c
- *
- * Requires: MBEDTLS_PK_C
- *
- * This module enables SSL/TLS PKCS #11 smartcard support.
- * Requires the presence of the PKCS#11 helper library (libpkcs11-helper)
- */
-//#define MBEDTLS_PKCS11_C
-
-/**
  * \def MBEDTLS_PKCS12_C
  *
  * Enable PKCS#12 PBE functions.
@@ -2748,10 +1723,6 @@
  *
  * Module:  library/rsa.c
  *          library/rsa_internal.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *          library/x509.c
  *
  * This module is used by the following key exchanges:
  *      RSA, DHE-RSA, ECDHE-RSA, RSA-PSK
@@ -2767,10 +1738,6 @@
  *
  * Module:  library/sha1.c
  * Caller:  library/md.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *          library/x509write_crt.c
  *
  * This module is required for SSL/TLS up to version 1.1, for TLS 1.2
  * depending on the handshake parameters, and for SHA1-signed certificates.
@@ -2790,9 +1757,6 @@
  * Module:  library/sha256.c
  * Caller:  library/entropy.c
  *          library/md.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
  *
  * This module adds support for SHA-224 and SHA-256.
  * This module is required for the SSL/TLS 1.2 PRF function.
@@ -2807,92 +1771,12 @@
  * Module:  library/sha512.c
  * Caller:  library/entropy.c
  *          library/md.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
  *
  * This module adds support for SHA-384 and SHA-512.
  */
 #define MBEDTLS_SHA512_C
 
 /**
- * \def MBEDTLS_SSL_CACHE_C
- *
- * Enable simple SSL cache implementation.
- *
- * Module:  library/ssl_cache.c
- * Caller:
- *
- * Requires: MBEDTLS_SSL_CACHE_C
- */
-#define MBEDTLS_SSL_CACHE_C
-
-/**
- * \def MBEDTLS_SSL_COOKIE_C
- *
- * Enable basic implementation of DTLS cookies for hello verification.
- *
- * Module:  library/ssl_cookie.c
- * Caller:
- */
-#define MBEDTLS_SSL_COOKIE_C
-
-/**
- * \def MBEDTLS_SSL_TICKET_C
- *
- * Enable an implementation of TLS server-side callbacks for session tickets.
- *
- * Module:  library/ssl_ticket.c
- * Caller:
- *
- * Requires: MBEDTLS_CIPHER_C
- */
-#define MBEDTLS_SSL_TICKET_C
-
-/**
- * \def MBEDTLS_SSL_CLI_C
- *
- * Enable the SSL/TLS client code.
- *
- * Module:  library/ssl_cli.c
- * Caller:
- *
- * Requires: MBEDTLS_SSL_TLS_C
- *
- * This module is required for SSL/TLS client support.
- */
-#define MBEDTLS_SSL_CLI_C
-
-/**
- * \def MBEDTLS_SSL_SRV_C
- *
- * Enable the SSL/TLS server code.
- *
- * Module:  library/ssl_srv.c
- * Caller:
- *
- * Requires: MBEDTLS_SSL_TLS_C
- *
- * This module is required for SSL/TLS server support.
- */
-#define MBEDTLS_SSL_SRV_C
-
-/**
- * \def MBEDTLS_SSL_TLS_C
- *
- * Enable the generic SSL/TLS code.
- *
- * Module:  library/ssl_tls.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *
- * Requires: MBEDTLS_CIPHER_C, MBEDTLS_MD_C
- *           and at least one of the MBEDTLS_SSL_PROTO_XXX defines
- *
- * This module is required for SSL/TLS.
- */
-#define MBEDTLS_SSL_TLS_C
-
-/**
  * \def MBEDTLS_THREADING_C
  *
  * Enable the threading abstraction layer.
@@ -2921,9 +1805,9 @@
  *
  * \note The provided implementation only works on POSIX/Unix (including Linux,
  * BSD and OS X) and Windows. On other platforms, you can either disable that
- * module and provide your own implementations of the callbacks needed by
- * \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and provide
- * your own implementation of the whole module by setting
+ * module and provide your own implementations of the callbacks needed by Mbed
+ * TLS's \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and
+ * provide your own implementation of the whole module by setting
  * \c MBEDTLS_TIMING_ALT in the current file.
  *
  * \note See also our Knowledge Base article about porting to a new
@@ -2949,106 +1833,6 @@
 #define MBEDTLS_VERSION_C
 
 /**
- * \def MBEDTLS_X509_USE_C
- *
- * Enable X.509 core for using certificates.
- *
- * Module:  library/x509.c
- * Caller:  library/x509_crl.c
- *          library/x509_crt.c
- *          library/x509_csr.c
- *
- * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_BIGNUM_C, MBEDTLS_OID_C,
- *           MBEDTLS_PK_PARSE_C
- *
- * This module is required for the X.509 parsing modules.
- */
-#define MBEDTLS_X509_USE_C
-
-/**
- * \def MBEDTLS_X509_CRT_PARSE_C
- *
- * Enable X.509 certificate parsing.
- *
- * Module:  library/x509_crt.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *
- * Requires: MBEDTLS_X509_USE_C
- *
- * This module is required for X.509 certificate parsing.
- */
-#define MBEDTLS_X509_CRT_PARSE_C
-
-/**
- * \def MBEDTLS_X509_CRL_PARSE_C
- *
- * Enable X.509 CRL parsing.
- *
- * Module:  library/x509_crl.c
- * Caller:  library/x509_crt.c
- *
- * Requires: MBEDTLS_X509_USE_C
- *
- * This module is required for X.509 CRL parsing.
- */
-#define MBEDTLS_X509_CRL_PARSE_C
-
-/**
- * \def MBEDTLS_X509_CSR_PARSE_C
- *
- * Enable X.509 Certificate Signing Request (CSR) parsing.
- *
- * Module:  library/x509_csr.c
- * Caller:  library/x509_crt_write.c
- *
- * Requires: MBEDTLS_X509_USE_C
- *
- * This module is used for reading X.509 certificate request.
- */
-#define MBEDTLS_X509_CSR_PARSE_C
-
-/**
- * \def MBEDTLS_X509_CREATE_C
- *
- * Enable X.509 core for creating certificates.
- *
- * Module:  library/x509_create.c
- *
- * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_WRITE_C
- *
- * This module is the basis for creating X.509 certificates and CSRs.
- */
-#define MBEDTLS_X509_CREATE_C
-
-/**
- * \def MBEDTLS_X509_CRT_WRITE_C
- *
- * Enable creating X.509 certificates.
- *
- * Module:  library/x509_crt_write.c
- *
- * Requires: MBEDTLS_X509_CREATE_C
- *
- * This module is required for X.509 certificate creation.
- */
-#define MBEDTLS_X509_CRT_WRITE_C
-
-/**
- * \def MBEDTLS_X509_CSR_WRITE_C
- *
- * Enable creating X.509 Certificate Signing Requests (CSR).
- *
- * Module:  library/x509_csr_write.c
- *
- * Requires: MBEDTLS_X509_CREATE_C
- *
- * This module is required for X.509 certificate request writing.
- */
-#define MBEDTLS_X509_CSR_WRITE_C
-
-/**
  * \def MBEDTLS_XTEA_C
  *
  * Enable the XTEA block cipher.
@@ -3138,187 +1922,6 @@
 //#define MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO  mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */
 
 /**
- * \brief       This macro is invoked by the library when an invalid parameter
- *              is detected that is only checked with MBEDTLS_CHECK_PARAMS
- *              (see the documentation of that option for context).
- *
- *              When you leave this undefined here, a default definition is
- *              provided that invokes the function mbedtls_param_failed(),
- *              which is declared in platform_util.h for the benefit of the
- *              library, but that you need to define in your application.
- *
- *              When you define this here, this replaces the default
- *              definition in platform_util.h (which no longer declares the
- *              function mbedtls_param_failed()) and it is your responsibility
- *              to make sure this macro expands to something suitable (in
- *              particular, that all the necessary declarations are visible
- *              from within the library - you can ensure that by providing
- *              them in this file next to the macro definition).
- *
- *              Note that you may define this macro to expand to nothing, in
- *              which case you don't have to worry about declarations or
- *              definitions. However, you will then be notified about invalid
- *              parameters only in non-void functions, and void function will
- *              just silently return early on invalid parameters, which
- *              partially negates the benefits of enabling
- *              #MBEDTLS_CHECK_PARAMS in the first place, so is discouraged.
- *
- * \param cond  The expression that should evaluate to true, but doesn't.
- */
-//#define MBEDTLS_PARAM_FAILED( cond )               assert( cond )
-
-/* SSL Cache options */
-//#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT       86400 /**< 1 day  */
-//#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES      50 /**< Maximum entries in cache */
-
-/* SSL options */
-
-/** \def MBEDTLS_SSL_MAX_CONTENT_LEN
- *
- * Maximum length (in bytes) of incoming and outgoing plaintext fragments.
- *
- * This determines the size of both the incoming and outgoing TLS I/O buffers
- * in such a way that both are capable of holding the specified amount of
- * plaintext data, regardless of the protection mechanism used.
- *
- * To configure incoming and outgoing I/O buffers separately, use
- * #MBEDTLS_SSL_IN_CONTENT_LEN and #MBEDTLS_SSL_OUT_CONTENT_LEN,
- * which overwrite the value set by this option.
- *
- * \note When using a value less than the default of 16KB on the client, it is
- *       recommended to use the Maximum Fragment Length (MFL) extension to
- *       inform the server about this limitation. On the server, there
- *       is no supported, standardized way of informing the client about
- *       restriction on the maximum size of incoming messages, and unless
- *       the limitation has been communicated by other means, it is recommended
- *       to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN
- *       while keeping the default value of 16KB for the incoming buffer.
- *
- * Uncomment to set the maximum plaintext size of both
- * incoming and outgoing I/O buffers.
- */
-//#define MBEDTLS_SSL_MAX_CONTENT_LEN             16384
-
-/** \def MBEDTLS_SSL_IN_CONTENT_LEN
- *
- * Maximum length (in bytes) of incoming plaintext fragments.
- *
- * This determines the size of the incoming TLS I/O buffer in such a way
- * that it is capable of holding the specified amount of plaintext data,
- * regardless of the protection mechanism used.
- *
- * If this option is undefined, it inherits its value from
- * #MBEDTLS_SSL_MAX_CONTENT_LEN.
- *
- * \note When using a value less than the default of 16KB on the client, it is
- *       recommended to use the Maximum Fragment Length (MFL) extension to
- *       inform the server about this limitation. On the server, there
- *       is no supported, standardized way of informing the client about
- *       restriction on the maximum size of incoming messages, and unless
- *       the limitation has been communicated by other means, it is recommended
- *       to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN
- *       while keeping the default value of 16KB for the incoming buffer.
- *
- * Uncomment to set the maximum plaintext size of the incoming I/O buffer
- * independently of the outgoing I/O buffer.
- */
-//#define MBEDTLS_SSL_IN_CONTENT_LEN              16384
-
-/** \def MBEDTLS_SSL_OUT_CONTENT_LEN
- *
- * Maximum length (in bytes) of outgoing plaintext fragments.
- *
- * This determines the size of the outgoing TLS I/O buffer in such a way
- * that it is capable of holding the specified amount of plaintext data,
- * regardless of the protection mechanism used.
- *
- * If this option undefined, it inherits its value from
- * #MBEDTLS_SSL_MAX_CONTENT_LEN.
- *
- * It is possible to save RAM by setting a smaller outward buffer, while keeping
- * the default inward 16384 byte buffer to conform to the TLS specification.
- *
- * The minimum required outward buffer size is determined by the handshake
- * protocol's usage. Handshaking will fail if the outward buffer is too small.
- * The specific size requirement depends on the configured ciphers and any
- * certificate data which is sent during the handshake.
- *
- * Uncomment to set the maximum plaintext size of the outgoing I/O buffer
- * independently of the incoming I/O buffer.
- */
-//#define MBEDTLS_SSL_OUT_CONTENT_LEN             16384
-
-/** \def MBEDTLS_SSL_DTLS_MAX_BUFFERING
- *
- * Maximum number of heap-allocated bytes for the purpose of
- * DTLS handshake message reassembly and future message buffering.
- *
- * This should be at least 9/8 * MBEDTLSSL_IN_CONTENT_LEN
- * to account for a reassembled handshake message of maximum size,
- * together with its reassembly bitmap.
- *
- * A value of 2 * MBEDTLS_SSL_IN_CONTENT_LEN (32768 by default)
- * should be sufficient for all practical situations as it allows
- * to reassembly a large handshake message (such as a certificate)
- * while buffering multiple smaller handshake messages.
- *
- */
-//#define MBEDTLS_SSL_DTLS_MAX_BUFFERING             32768
-
-//#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME     86400 /**< Lifetime of session tickets (if enabled) */
-//#define MBEDTLS_PSK_MAX_LEN               32 /**< Max size of TLS pre-shared keys, in bytes (default 256 bits) */
-//#define MBEDTLS_SSL_COOKIE_TIMEOUT        60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */
-
-/**
- * Complete list of ciphersuites to use, in order of preference.
- *
- * \warning No dependency checking is done on that field! This option can only
- * be used to restrict the set of available ciphersuites. It is your
- * responsibility to make sure the needed modules are active.
- *
- * Use this to save a few hundred bytes of ROM (default ordering of all
- * available ciphersuites) and a few to a few hundred bytes of RAM.
- *
- * The value below is only an example, not the default.
- */
-//#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
-
-/* X509 options */
-//#define MBEDTLS_X509_MAX_INTERMEDIATE_CA   8   /**< Maximum number of intermediate CAs in a verification chain. */
-//#define MBEDTLS_X509_MAX_FILE_PATH_LEN     512 /**< Maximum length of a path/filename string in bytes including the null terminator character ('\0'). */
-
-/**
- * Allow SHA-1 in the default TLS configuration for certificate signing.
- * Without this build-time option, SHA-1 support must be activated explicitly
- * through mbedtls_ssl_conf_cert_profile. Turning on this option is not
- * recommended because of it is possible to generate SHA-1 collisions, however
- * this may be safe for legacy infrastructure where additional controls apply.
- *
- * \warning   SHA-1 is considered a weak message digest and its use constitutes
- *            a security risk. If possible, we recommend avoiding dependencies
- *            on it, and considering stronger message digests instead.
- *
- */
-// #define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES
-
-/**
- * Allow SHA-1 in the default TLS configuration for TLS 1.2 handshake
- * signature and ciphersuite selection. Without this build-time option, SHA-1
- * support must be activated explicitly through mbedtls_ssl_conf_sig_hashes.
- * The use of SHA-1 in TLS <= 1.1 and in HMAC-SHA-1 is always allowed by
- * default. At the time of writing, there is no practical attack on the use
- * of SHA-1 in handshake signatures, hence this option is turned on by default
- * to preserve compatibility with existing peers, but the general
- * warning applies nonetheless:
- *
- * \warning   SHA-1 is considered a weak message digest and its use constitutes
- *            a security risk. If possible, we recommend avoiding dependencies
- *            on it, and considering stronger message digests instead.
- *
- */
-#define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE
-
-/**
  * Uncomment the macro to let mbed TLS use your alternate implementation of
  * mbedtls_platform_zeroize(). This replaces the default implementation in
  * platform_util.c.
diff --git a/configs/config-suite-b.h b/configs/config-suite-b.h
index 18e2c40..4faaa77 100644
--- a/configs/config-suite-b.h
+++ b/configs/config-suite-b.h
@@ -22,7 +22,8 @@
  *  This file is part of mbed TLS (https://tls.mbed.org)
  */
 /*
- * Minimal configuration for TLS NSA Suite B Profile (RFC 6460)
+ * Minimal configuration for the crypto required for TLS NSA Suite B Profile
+ * (RFC 6460)
  *
  * Distinguishing features:
  * - no RSA or classic DH, fully based on ECC
@@ -45,8 +46,6 @@
 /* mbed TLS feature support */
 #define MBEDTLS_ECP_DP_SECP256R1_ENABLED
 #define MBEDTLS_ECP_DP_SECP384R1_ENABLED
-#define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
-#define MBEDTLS_SSL_PROTO_TLS1_2
 
 /* mbed TLS modules */
 #define MBEDTLS_AES_C
@@ -67,15 +66,9 @@
 #define MBEDTLS_PK_PARSE_C
 #define MBEDTLS_SHA256_C
 #define MBEDTLS_SHA512_C
-#define MBEDTLS_SSL_CLI_C
-#define MBEDTLS_SSL_SRV_C
-#define MBEDTLS_SSL_TLS_C
-#define MBEDTLS_X509_CRT_PARSE_C
-#define MBEDTLS_X509_USE_C
 
 /* For test certificates */
 #define MBEDTLS_BASE64_C
-#define MBEDTLS_CERTS_C
 #define MBEDTLS_PEM_PARSE_C
 
 /* Save RAM at the expense of ROM */
@@ -99,19 +92,6 @@
  */
 #define MBEDTLS_ENTROPY_MAX_SOURCES 2
 
-/* Save ROM and a few bytes of RAM by specifying our own ciphersuite list */
-#define MBEDTLS_SSL_CIPHERSUITES                        \
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,    \
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
-
-/*
- * Save RAM at the expense of interoperability: do this only if you control
- * both ends of the connection!  (See coments in "mbedtls/ssl.h".)
- * The minimum size here depends on the certificate chain used as well as the
- * typical size of records.
- */
-#define MBEDTLS_SSL_MAX_CONTENT_LEN             1024
-
 #include "mbedtls/check_config.h"
 
 #endif /* MBEDTLS_CONFIG_H */
diff --git a/configs/config-thread.h b/configs/config-thread.h
deleted file mode 100644
index f729a03..0000000
--- a/configs/config-thread.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/**
- * \file config-thread.h
- *
- * \brief Minimal configuration for using TLS as part of Thread
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-/*
- * Minimal configuration for using TLS a part of Thread
- * http://threadgroup.org/
- *
- * Distinguishing features:
- * - no RSA or classic DH, fully based on ECC
- * - no X.509
- * - support for experimental EC J-PAKE key exchange
- *
- * See README.txt for usage instructions.
- */
-
-#ifndef MBEDTLS_CONFIG_H
-#define MBEDTLS_CONFIG_H
-
-/* System support */
-#define MBEDTLS_HAVE_ASM
-
-/* mbed TLS feature support */
-#define MBEDTLS_AES_ROM_TABLES
-#define MBEDTLS_ECP_DP_SECP256R1_ENABLED
-#define MBEDTLS_ECP_NIST_OPTIM
-#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
-#define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
-#define MBEDTLS_SSL_PROTO_TLS1_2
-#define MBEDTLS_SSL_PROTO_DTLS
-#define MBEDTLS_SSL_DTLS_ANTI_REPLAY
-#define MBEDTLS_SSL_DTLS_HELLO_VERIFY
-#define MBEDTLS_SSL_EXPORT_KEYS
-
-/* mbed TLS modules */
-#define MBEDTLS_AES_C
-#define MBEDTLS_ASN1_PARSE_C
-#define MBEDTLS_ASN1_WRITE_C
-#define MBEDTLS_BIGNUM_C
-#define MBEDTLS_CCM_C
-#define MBEDTLS_CIPHER_C
-#define MBEDTLS_CTR_DRBG_C
-#define MBEDTLS_CMAC_C
-#define MBEDTLS_ECJPAKE_C
-#define MBEDTLS_ECP_C
-#define MBEDTLS_ENTROPY_C
-#define MBEDTLS_HMAC_DRBG_C
-#define MBEDTLS_MD_C
-#define MBEDTLS_OID_C
-#define MBEDTLS_PK_C
-#define MBEDTLS_PK_PARSE_C
-#define MBEDTLS_SHA256_C
-#define MBEDTLS_SSL_COOKIE_C
-#define MBEDTLS_SSL_CLI_C
-#define MBEDTLS_SSL_SRV_C
-#define MBEDTLS_SSL_TLS_C
-
-/* Save RAM at the expense of ROM */
-#define MBEDTLS_AES_ROM_TABLES
-
-/* Save RAM by adjusting to our exact needs */
-#define MBEDTLS_ECP_MAX_BITS             256
-#define MBEDTLS_MPI_MAX_SIZE              32 // 256 bits is 32 bytes
-
-/* Save ROM and a few bytes of RAM by specifying our own ciphersuite list */
-#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8
-
-#include "mbedtls/check_config.h"
-
-#endif /* MBEDTLS_CONFIG_H */
diff --git a/doxygen/input/doc_mainpage.h b/doxygen/input/doc_mainpage.h
index 4eff836..2a637d1 100644
--- a/doxygen/input/doc_mainpage.h
+++ b/doxygen/input/doc_mainpage.h
@@ -5,7 +5,7 @@
  */
 /*
  *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
+ *  Copyright (C) 2006-2019, ARM Limited, All Rights Reserved
  *  SPDX-License-Identifier: Apache-2.0
  *
  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
@@ -24,73 +24,26 @@
  */
 
 /**
- * @mainpage mbed TLS v2.17.0 source code documentation
+ * @mainpage Mbed Crypto v0.1.0 source code documentation
  *
  * This documentation describes the internal structure of mbed TLS.  It was
  * automatically generated from specially formatted comment blocks in
  * mbed TLS's source code using Doxygen.  (See
  * http://www.stack.nl/~dimitri/doxygen/ for more information on Doxygen)
  *
- * mbed TLS has a simple setup: it provides the ingredients for an SSL/TLS
- * implementation. These ingredients are listed as modules in the
- * \ref mainpage_modules "Modules section". This "Modules section" introduces
- * the high-level module concepts used throughout this documentation.\n
- * Some examples of mbed TLS usage can be found in the \ref mainpage_examples
- * "Examples section".
+ * Mbed Crypto provides an implementation of the PSA Crypto API. The library is
+ * comprised of a number of independent modules, listed in the \ref
+ * mainpage_modules "Modules section". This "Modules section" introduces the
+ * high-level module concepts used throughout this documentation.
  *
  * @section mainpage_modules Modules
  *
- * mbed TLS supports SSLv3 up to TLSv1.2 communication by providing the
- * following:
- * - TCP/IP communication functions: listen, connect, accept, read/write.
- * - SSL/TLS communication functions: init, handshake, read/write.
- * - X.509 functions: CRT, CRL and key handling
+ * Mbed Crypto provides the following modules:
  * - Random number generation
  * - Hashing
  * - Encryption/decryption
  *
  * Above functions are split up neatly into logical interfaces. These can be
- * used separately to provide any of the above functions or to mix-and-match
- * into an SSL server/client solution that utilises a X.509 PKI. Examples of
- * such implementations are amply provided with the source code.
+ * used separately to provide any of the above functions or to mix-and-match.
  *
- * Note that mbed TLS does not provide a control channel or (multiple) session
- * handling without additional work from the developer.
- *
- * @section mainpage_examples Examples
- *
- * Example server setup:
- *
- * \b Prerequisites:
- * - X.509 certificate and private key
- * - session handling functions
- *
- * \b Setup:
- * - Load your certificate and your private RSA key (X.509 interface)
- * - Setup the listening TCP socket (TCP/IP interface)
- * - Accept incoming client connection (TCP/IP interface)
- * - Initialise as an SSL-server (SSL/TLS interface)
- *   - Set parameters, e.g. authentication, ciphers, CA-chain, key exchange
- *   - Set callback functions RNG, IO, session handling
- * - Perform an SSL-handshake (SSL/TLS interface)
- * - Read/write data (SSL/TLS interface)
- * - Close and cleanup (all interfaces)
- *
- * Example client setup:
- *
- * \b Prerequisites:
- * - X.509 certificate and private key
- * - X.509 trusted CA certificates
- *
- * \b Setup:
- * - Load the trusted CA certificates (X.509 interface)
- * - Load your certificate and your private RSA key (X.509 interface)
- * - Setup a TCP/IP connection (TCP/IP interface)
- * - Initialise as an SSL-client (SSL/TLS interface)
- *   - Set parameters, e.g. authentication mode, ciphers, CA-chain, session
- *   - Set callback functions RNG, IO
- * - Perform an SSL-handshake (SSL/TLS interface)
- * - Verify the server certificate (SSL/TLS interface)
- * - Write/read data (SSL/TLS interface)
- * - Close and cleanup (all interfaces)
  */
diff --git a/doxygen/input/doc_ssltls.h b/doxygen/input/doc_ssltls.h
deleted file mode 100644
index 4addfb3..0000000
--- a/doxygen/input/doc_ssltls.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/**
- * \file doc_ssltls.h
- *
- * \brief SSL/TLS communication module documentation file.
- */
-/*
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-/**
- * @addtogroup ssltls_communication_module SSL/TLS communication module
- *
- * The SSL/TLS communication module provides the means to create an SSL/TLS
- * communication channel.
- *
- * The basic provisions are:
- * - initialise an SSL/TLS context (see \c mbedtls_ssl_init()).
- * - perform an SSL/TLS handshake (see \c mbedtls_ssl_handshake()).
- * - read/write (see \c mbedtls_ssl_read() and \c mbedtls_ssl_write()).
- * - notify a peer that connection is being closed (see \c mbedtls_ssl_close_notify()).
- *
- * Many aspects of such a channel are set through parameters and callback
- * functions:
- * - the endpoint role: client or server.
- * - the authentication mode. Should verification take place.
- * - the Host-to-host communication channel. A TCP/IP module is provided.
- * - the random number generator (RNG).
- * - the ciphers to use for encryption/decryption.
- * - session control functions.
- * - X.509 parameters for certificate-handling and key exchange.
- *
- * This module can be used to create an SSL/TLS server and client and to provide a basic
- * framework to setup and communicate through an SSL/TLS communication channel.\n
- * Note that you need to provide for several aspects yourself as mentioned above.
- */
diff --git a/doxygen/input/doc_tcpip.h b/doxygen/input/doc_tcpip.h
deleted file mode 100644
index 95f4586..0000000
--- a/doxygen/input/doc_tcpip.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/**
- * \file doc_tcpip.h
- *
- * \brief TCP/IP communication module documentation file.
- */
-/*
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-/**
- * @addtogroup tcpip_communication_module TCP/IP communication module
- *
- * The TCP/IP communication module provides for a channel of
- * communication for the \link ssltls_communication_module SSL/TLS communication
- * module\endlink to use.
- * In the TCP/IP-model it provides for communication up to the Transport
- * (or Host-to-host) layer.
- * SSL/TLS resides on top of that, in the Application layer, and makes use of
- * its basic provisions:
- * - listening on a port (see \c mbedtls_net_bind()).
- * - accepting a connection (through \c mbedtls_net_accept()).
- * - read/write (through \c mbedtls_net_recv()/\c mbedtls_net_send()).
- * - close a connection (through \c mbedtls_net_close()).
- *
- * This way you have the means to, for example, implement and use an UDP or
- * IPSec communication solution as a basis.
- *
- * This module can be used at server- and clientside to provide a basic
- * means of communication over the internet.
- */
diff --git a/doxygen/input/doc_x509.h b/doxygen/input/doc_x509.h
deleted file mode 100644
index 9b52569..0000000
--- a/doxygen/input/doc_x509.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/**
- * \file doc_x509.h
- *
- * \brief X.509 module documentation file.
- */
-/*
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-/**
- * @addtogroup x509_module X.509 module
- *
- * The X.509 module provides X.509 support for reading, writing and verification
- * of certificates.
- * In summary:
- *   - X.509 certificate (CRT) reading (see \c mbedtls_x509_crt_parse(),
- *     \c mbedtls_x509_crt_parse_der(), \c mbedtls_x509_crt_parse_file()).
- *   - X.509 certificate revocation list (CRL) reading (see
- *     \c mbedtls_x509_crl_parse(), \c mbedtls_x509_crl_parse_der(),
- *     and \c mbedtls_x509_crl_parse_file()).
- *   - X.509 certificate signature verification (see \c
- *     mbedtls_x509_crt_verify() and \c mbedtls_x509_crt_verify_with_profile().
- *   - X.509 certificate writing and certificate request writing (see
- *     \c mbedtls_x509write_crt_der() and \c mbedtls_x509write_csr_der()).
- *
- * This module can be used to build a certificate authority (CA) chain and
- * verify its signature. It is also used to generate Certificate Signing
- * Requests and X.509 certificates just as a CA would do.
- */
diff --git a/doxygen/mbedtls.doxyfile b/doxygen/mbedtls.doxyfile
index ce58d6b..1822369 100644
--- a/doxygen/mbedtls.doxyfile
+++ b/doxygen/mbedtls.doxyfile
@@ -1618,7 +1618,6 @@
                          P2MP \
                          P2MP_SERVER \
                          USE_CRYPTO \
-                         USE_SSL \
                          ENABLE_PLUGIN \
                          ENABLE_MANAGEMENT \
                          ENABLE_OCC \
diff --git a/include/mbedtls/asn1write.h b/include/mbedtls/asn1write.h
index dc81782..8aa01b4 100644
--- a/include/mbedtls/asn1write.h
+++ b/include/mbedtls/asn1write.h
@@ -33,11 +33,12 @@
 #include "asn1.h"
 
 #define MBEDTLS_ASN1_CHK_ADD(g, f)                      \
-    do {                                                \
-        if( ( ret = f ) < 0 )                           \
+    do                                                  \
+    {                                                   \
+        if( ( ret = (f) ) < 0 )                         \
             return( ret );                              \
         else                                            \
-            g += ret;                                   \
+            (g) += ret;                                 \
     } while( 0 )
 
 #ifdef __cplusplus
diff --git a/include/mbedtls/bignum.h b/include/mbedtls/bignum.h
index c4d7686..a04a145 100644
--- a/include/mbedtls/bignum.h
+++ b/include/mbedtls/bignum.h
@@ -46,7 +46,12 @@
 #define MBEDTLS_ERR_MPI_NOT_ACCEPTABLE                    -0x000E  /**< The input arguments are not acceptable. */
 #define MBEDTLS_ERR_MPI_ALLOC_FAILED                      -0x0010  /**< Memory allocation failed. */
 
-#define MBEDTLS_MPI_CHK(f) do { if( ( ret = f ) != 0 ) goto cleanup; } while( 0 )
+#define MBEDTLS_MPI_CHK(f)       \
+    do                           \
+    {                            \
+        if( ( ret = (f) ) != 0 ) \
+            goto cleanup;        \
+    } while( 0 )
 
 /*
  * Maximum size MPIs are allowed to grow to in number of limbs.
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 0fa74f0..78bf131 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -57,9 +57,8 @@
 #endif
 #endif /* _WIN32 */
 
-#if defined(TARGET_LIKE_MBED) && \
-    ( defined(MBEDTLS_NET_C) || defined(MBEDTLS_TIMING_C) )
-#error "The NET and TIMING modules are not available for mbed OS - please use the network and timing functions provided by mbed OS"
+#if defined(TARGET_LIKE_MBED) && defined(MBEDTLS_TIMING_C)
+#error "The TIMING module is not available for mbed OS - please use the timing functions provided by Mbed OS"
 #endif
 
 #if defined(MBEDTLS_DEPRECATED_WARNING) && \
@@ -83,10 +82,6 @@
 #error "MBEDTLS_DHM_C defined, but not all prerequisites"
 #endif
 
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT) && !defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-#error "MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT defined, but not all prerequisites"
-#endif
-
 #if defined(MBEDTLS_CMAC_C) && \
     !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_DES_C)
 #error "MBEDTLS_CMAC_C defined, but not all prerequisites"
@@ -182,7 +177,7 @@
 #endif
 
 #if defined(MBEDTLS_GCM_C) && (                                        \
-        !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) )
+        !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) && !defined(MBEDTLS_ARIA_C) )
 #error "MBEDTLS_GCM_C defined, but not all prerequisites"
 #endif
 
@@ -230,69 +225,6 @@
 #error "MBEDTLS_HMAC_DRBG_C defined, but not all prerequisites"
 #endif
 
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) &&                 \
-    ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) )
-#error "MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) &&                 \
-    ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) )
-#error "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) && !defined(MBEDTLS_DHM_C)
-#error "MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) &&                     \
-    !defined(MBEDTLS_ECDH_C)
-#error "MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) &&                   \
-    ( !defined(MBEDTLS_DHM_C) || !defined(MBEDTLS_RSA_C) ||           \
-      !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) )
-#error "MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) &&                 \
-    ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_RSA_C) ||          \
-      !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) )
-#error "MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) &&                 \
-    ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_ECDSA_C) ||          \
-      !defined(MBEDTLS_X509_CRT_PARSE_C) )
-#error "MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) &&                   \
-    ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \
-      !defined(MBEDTLS_PKCS1_V15) )
-#error "MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) &&                       \
-    ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \
-      !defined(MBEDTLS_PKCS1_V15) )
-#error "MBEDTLS_KEY_EXCHANGE_RSA_ENABLED defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) &&                    \
-    ( !defined(MBEDTLS_ECJPAKE_C) || !defined(MBEDTLS_SHA256_C) ||      \
-      !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) )
-#error "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) &&        \
-    !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) &&              \
-    ( !defined(MBEDTLS_SHA256_C) &&                             \
-      !defined(MBEDTLS_SHA512_C) &&                             \
-      !defined(MBEDTLS_SHA1_C) )
-#error "!MBEDTLS_SSL_KEEP_PEER_CERTIFICATE requires MBEDTLS_SHA512_C, MBEDTLS_SHA256_C or MBEDTLS_SHA1_C"
-#endif
-
 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) &&                          \
     ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
 #error "MBEDTLS_MEMORY_BUFFER_ALLOC_C defined, but not all prerequisites"
@@ -323,10 +255,6 @@
 #error "MBEDTLS_PK_WRITE_C defined, but not all prerequisites"
 #endif
 
-#if defined(MBEDTLS_PKCS11_C) && !defined(MBEDTLS_PK_C)
-#error "MBEDTLS_PKCS11_C defined, but not all prerequisites"
-#endif
-
 #if defined(MBEDTLS_PLATFORM_EXIT_ALT) && !defined(MBEDTLS_PLATFORM_C)
 #error "MBEDTLS_PLATFORM_EXIT_ALT defined, but not all prerequisites"
 #endif
@@ -561,119 +489,6 @@
 #error "MBEDTLS_RSA_C defined, but none of the PKCS1 versions enabled"
 #endif
 
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) &&                        \
-    ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_PKCS1_V21) )
-#error "MBEDTLS_X509_RSASSA_PSS_SUPPORT defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) && ( !defined(MBEDTLS_MD5_C) ||     \
-    !defined(MBEDTLS_SHA1_C) )
-#error "MBEDTLS_SSL_PROTO_SSL3 defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1) && ( !defined(MBEDTLS_MD5_C) ||     \
-    !defined(MBEDTLS_SHA1_C) )
-#error "MBEDTLS_SSL_PROTO_TLS1 defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_1) && ( !defined(MBEDTLS_MD5_C) ||     \
-    !defined(MBEDTLS_SHA1_C) )
-#error "MBEDTLS_SSL_PROTO_TLS1_1 defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && ( !defined(MBEDTLS_SHA1_C) &&     \
-    !defined(MBEDTLS_SHA256_C) && !defined(MBEDTLS_SHA512_C) )
-#error "MBEDTLS_SSL_PROTO_TLS1_2 defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)     && \
-    !defined(MBEDTLS_SSL_PROTO_TLS1_1)  && \
-    !defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#error "MBEDTLS_SSL_PROTO_DTLS defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_CLI_C) && !defined(MBEDTLS_SSL_TLS_C)
-#error "MBEDTLS_SSL_CLI_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_TLS_C) && ( !defined(MBEDTLS_CIPHER_C) ||     \
-    !defined(MBEDTLS_MD_C) )
-#error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_SRV_C) && !defined(MBEDTLS_SSL_TLS_C)
-#error "MBEDTLS_SSL_SRV_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_TLS_C) && (!defined(MBEDTLS_SSL_PROTO_SSL3) && \
-    !defined(MBEDTLS_SSL_PROTO_TLS1) && !defined(MBEDTLS_SSL_PROTO_TLS1_1) && \
-    !defined(MBEDTLS_SSL_PROTO_TLS1_2))
-#error "MBEDTLS_SSL_TLS_C defined, but no protocols are active"
-#endif
-
-#if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1) && !defined(MBEDTLS_SSL_PROTO_TLS1))
-#error "Illegal protocol selection"
-#endif
-
-#if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_TLS1) && \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2) && !defined(MBEDTLS_SSL_PROTO_TLS1_1))
-#error "Illegal protocol selection"
-#endif
-
-#if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2) && (!defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    !defined(MBEDTLS_SSL_PROTO_TLS1_1)))
-#error "Illegal protocol selection"
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && !defined(MBEDTLS_SSL_PROTO_DTLS)
-#error "MBEDTLS_SSL_DTLS_HELLO_VERIFY  defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && \
-    !defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-#error "MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE  defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) &&                              \
-    ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
-#error "MBEDTLS_SSL_DTLS_ANTI_REPLAY  defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) &&                              \
-    ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
-#error "MBEDTLS_SSL_DTLS_BADMAC_LIMIT  defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) &&   \
-    !defined(MBEDTLS_SSL_PROTO_TLS1)   &&      \
-    !defined(MBEDTLS_SSL_PROTO_TLS1_1) &&      \
-    !defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#error "MBEDTLS_SSL_ENCRYPT_THEN_MAC defined, but not all prerequsites"
-#endif
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \
-    !defined(MBEDTLS_SSL_PROTO_TLS1)   &&          \
-    !defined(MBEDTLS_SSL_PROTO_TLS1_1) &&          \
-    !defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#error "MBEDTLS_SSL_EXTENDED_MASTER_SECRET defined, but not all prerequsites"
-#endif
-
-#if defined(MBEDTLS_SSL_TICKET_C) && !defined(MBEDTLS_CIPHER_C)
-#error "MBEDTLS_SSL_TICKET_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) && \
-    !defined(MBEDTLS_SSL_PROTO_SSL3) && !defined(MBEDTLS_SSL_PROTO_TLS1)
-#error "MBEDTLS_SSL_CBC_RECORD_SPLITTING defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && \
-        !defined(MBEDTLS_X509_CRT_PARSE_C)
-#error "MBEDTLS_SSL_SERVER_NAME_INDICATION defined, but not all prerequisites"
-#endif
-
 #if defined(MBEDTLS_THREADING_PTHREAD)
 #if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL)
 #error "MBEDTLS_THREADING_PTHREAD defined, but not all prerequisites"
@@ -701,38 +516,6 @@
 #error "MBEDTLS_VERSION_FEATURES defined, but not all prerequisites"
 #endif
 
-#if defined(MBEDTLS_X509_USE_C) && ( !defined(MBEDTLS_BIGNUM_C) ||  \
-    !defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_PARSE_C) ||      \
-    !defined(MBEDTLS_PK_PARSE_C) )
-#error "MBEDTLS_X509_USE_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_X509_CREATE_C) && ( !defined(MBEDTLS_BIGNUM_C) ||  \
-    !defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_WRITE_C) ||       \
-    !defined(MBEDTLS_PK_WRITE_C) )
-#error "MBEDTLS_X509_CREATE_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
-#error "MBEDTLS_X509_CRT_PARSE_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_X509_CRL_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
-#error "MBEDTLS_X509_CRL_PARSE_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_X509_CSR_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
-#error "MBEDTLS_X509_CSR_PARSE_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_X509_CRT_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) )
-#error "MBEDTLS_X509_CRT_WRITE_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_X509_CSR_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) )
-#error "MBEDTLS_X509_CSR_WRITE_C defined, but not all prerequisites"
-#endif
-
 #if defined(MBEDTLS_HAVE_INT32) && defined(MBEDTLS_HAVE_INT64)
 #error "MBEDTLS_HAVE_INT32 and MBEDTLS_HAVE_INT64 cannot be defined simultaneously"
 #endif /* MBEDTLS_HAVE_INT32 && MBEDTLS_HAVE_INT64 */
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index fd7d744..56ad01c 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -614,29 +614,10 @@
  * Warning: Only do so when you know what you are doing. This allows for
  * encryption or channels without any security!
  *
- * Requires MBEDTLS_ENABLE_WEAK_CIPHERSUITES as well to enable
- * the following ciphersuites:
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA
- *      MBEDTLS_TLS_RSA_WITH_NULL_SHA256
- *      MBEDTLS_TLS_RSA_WITH_NULL_SHA
- *      MBEDTLS_TLS_RSA_WITH_NULL_MD5
- *      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA
- *      MBEDTLS_TLS_PSK_WITH_NULL_SHA384
- *      MBEDTLS_TLS_PSK_WITH_NULL_SHA256
- *      MBEDTLS_TLS_PSK_WITH_NULL_SHA
+ * This module is required to support the TLS ciphersuites that use the NULL
+ * cipher.
  *
- * Uncomment this macro to enable the NULL cipher and ciphersuites
+ * Uncomment this macro to enable the NULL cipher
  */
 //#define MBEDTLS_CIPHER_NULL_CIPHER
 
@@ -657,57 +638,6 @@
 #define MBEDTLS_CIPHER_PADDING_ZEROS
 
 /**
- * \def MBEDTLS_ENABLE_WEAK_CIPHERSUITES
- *
- * Enable weak ciphersuites in SSL / TLS.
- * Warning: Only do so when you know what you are doing. This allows for
- * channels with virtually no security at all!
- *
- * This enables the following ciphersuites:
- *      MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA
- *
- * Uncomment this macro to enable weak ciphersuites
- *
- * \warning   DES is considered a weak cipher and its use constitutes a
- *            security risk. We recommend considering stronger ciphers instead.
- */
-//#define MBEDTLS_ENABLE_WEAK_CIPHERSUITES
-
-/**
- * \def MBEDTLS_REMOVE_ARC4_CIPHERSUITES
- *
- * Remove RC4 ciphersuites by default in SSL / TLS.
- * This flag removes the ciphersuites based on RC4 from the default list as
- * returned by mbedtls_ssl_list_ciphersuites(). However, it is still possible to
- * enable (some of) them with mbedtls_ssl_conf_ciphersuites() by including them
- * explicitly.
- *
- * Uncomment this macro to remove RC4 ciphersuites by default.
- */
-#define MBEDTLS_REMOVE_ARC4_CIPHERSUITES
-
-/**
- * \def MBEDTLS_REMOVE_3DES_CIPHERSUITES
- *
- * Remove 3DES ciphersuites by default in SSL / TLS.
- * This flag removes the ciphersuites based on 3DES from the default list as
- * returned by mbedtls_ssl_list_ciphersuites(). However, it is still possible
- * to enable (some of) them with mbedtls_ssl_conf_ciphersuites() by including
- * them explicitly.
- *
- * A man-in-the-browser attacker can recover authentication tokens sent through
- * a TLS connection using a 3DES based cipher suite (see "On the Practical
- * (In-)Security of 64-bit Block Ciphers" by Karthikeyan Bhargavan and Gaëtan
- * Leurent, see https://sweet32.info/SWEET32_CCS16.pdf). If this attack falls
- * in your threat model or you are unsure, then you should keep this option
- * enabled to remove 3DES based cipher suites.
- *
- * Comment this macro to keep 3DES in the default ciphersuite list.
- */
-#define MBEDTLS_REMOVE_3DES_CIPHERSUITES
-
-/**
  * \def MBEDTLS_ECP_DP_SECP192R1_ENABLED
  *
  * MBEDTLS_ECP_XXXX_ENABLED: Enables specific curves within the Elliptic Curve
@@ -808,281 +738,6 @@
 #define MBEDTLS_ECDSA_DETERMINISTIC
 
 /**
- * \def MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
- *
- * Enable the PSK based ciphersuite modes in SSL / TLS.
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED
- *
- * Enable the DHE-PSK based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_DHM_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA
- *
- * \warning    Using DHE constitutes a security risk as it
- *             is not possible to validate custom DH parameters.
- *             If possible, it is recommended users should consider
- *             preferring other methods of key exchange.
- *             See dhm.h for more details.
- *
- */
-#define MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
- *
- * Enable the ECDHE-PSK based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED
- *
- * Enable the RSA-PSK based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
- *
- * Enable the RSA-only based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
- */
-#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED
- *
- * Enable the DHE-RSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_DHM_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- *
- * \warning    Using DHE constitutes a security risk as it
- *             is not possible to validate custom DH parameters.
- *             If possible, it is recommended users should consider
- *             preferring other methods of key exchange.
- *             See dhm.h for more details.
- *
- */
-#define MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
- *
- * Enable the ECDHE-RSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
- *           MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
- *
- * Enable the ECDHE-ECDSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_ECDSA_C, MBEDTLS_X509_CRT_PARSE_C,
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED
- *
- * Enable the ECDH-ECDSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
- *
- * Enable the ECDH-RSA based ciphersuite modes in SSL / TLS.
- *
- * Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384
- */
-#define MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
-
-/**
- * \def MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
- *
- * Enable the ECJPAKE based ciphersuite modes in SSL / TLS.
- *
- * \warning This is currently experimental. EC J-PAKE support is based on the
- * Thread v1.0.0 specification; incompatible changes to the specification
- * might still happen. For this reason, this is disabled by default.
- *
- * Requires: MBEDTLS_ECJPAKE_C
- *           MBEDTLS_SHA256_C
- *           MBEDTLS_ECP_DP_SECP256R1_ENABLED
- *
- * This enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8
- */
-//#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
-
-/**
  * \def MBEDTLS_PK_PARSE_EC_EXTENDED
  *
  * Enhance support for reading EC keys using variants of SEC1 not allowed by
@@ -1328,395 +983,6 @@
 //#define MBEDTLS_SHA256_SMALLER
 
 /**
- * \def MBEDTLS_SSL_ALL_ALERT_MESSAGES
- *
- * Enable sending of alert messages in case of encountered errors as per RFC.
- * If you choose not to send the alert messages, mbed TLS can still communicate
- * with other servers, only debugging of failures is harder.
- *
- * The advantage of not sending alert messages, is that no information is given
- * about reasons for failures thus preventing adversaries of gaining intel.
- *
- * Enable sending of all alert messages
- */
-#define MBEDTLS_SSL_ALL_ALERT_MESSAGES
-
-/**
- * \def MBEDTLS_SSL_ASYNC_PRIVATE
- *
- * Enable asynchronous external private key operations in SSL. This allows
- * you to configure an SSL connection to call an external cryptographic
- * module to perform private key operations instead of performing the
- * operation inside the library.
- *
- */
-//#define MBEDTLS_SSL_ASYNC_PRIVATE
-
-/**
- * \def MBEDTLS_SSL_DEBUG_ALL
- *
- * Enable the debug messages in SSL module for all issues.
- * Debug messages have been disabled in some places to prevent timing
- * attacks due to (unbalanced) debugging function calls.
- *
- * If you need all error reporting you should enable this during debugging,
- * but remove this for production servers that should log as well.
- *
- * Uncomment this macro to report all debug messages on errors introducing
- * a timing side-channel.
- *
- */
-//#define MBEDTLS_SSL_DEBUG_ALL
-
-/** \def MBEDTLS_SSL_ENCRYPT_THEN_MAC
- *
- * Enable support for Encrypt-then-MAC, RFC 7366.
- *
- * This allows peers that both support it to use a more robust protection for
- * ciphersuites using CBC, providing deep resistance against timing attacks
- * on the padding or underlying cipher.
- *
- * This only affects CBC ciphersuites, and is useless if none is defined.
- *
- * Requires: MBEDTLS_SSL_PROTO_TLS1    or
- *           MBEDTLS_SSL_PROTO_TLS1_1  or
- *           MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Comment this macro to disable support for Encrypt-then-MAC
- */
-#define MBEDTLS_SSL_ENCRYPT_THEN_MAC
-
-/** \def MBEDTLS_SSL_EXTENDED_MASTER_SECRET
- *
- * Enable support for Extended Master Secret, aka Session Hash
- * (draft-ietf-tls-session-hash-02).
- *
- * This was introduced as "the proper fix" to the Triple Handshake familiy of
- * attacks, but it is recommended to always use it (even if you disable
- * renegotiation), since it actually fixes a more fundamental issue in the
- * original SSL/TLS design, and has implications beyond Triple Handshake.
- *
- * Requires: MBEDTLS_SSL_PROTO_TLS1    or
- *           MBEDTLS_SSL_PROTO_TLS1_1  or
- *           MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Comment this macro to disable support for Extended Master Secret.
- */
-#define MBEDTLS_SSL_EXTENDED_MASTER_SECRET
-
-/**
- * \def MBEDTLS_SSL_FALLBACK_SCSV
- *
- * Enable support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv-00).
- *
- * For servers, it is recommended to always enable this, unless you support
- * only one version of TLS, or know for sure that none of your clients
- * implements a fallback strategy.
- *
- * For clients, you only need this if you're using a fallback strategy, which
- * is not recommended in the first place, unless you absolutely need it to
- * interoperate with buggy (version-intolerant) servers.
- *
- * Comment this macro to disable support for FALLBACK_SCSV
- */
-#define MBEDTLS_SSL_FALLBACK_SCSV
-
-/**
- * \def MBEDTLS_SSL_KEEP_PEER_CERTIFICATE
- *
- * This option controls the availability of the API mbedtls_ssl_get_peer_cert()
- * giving access to the peer's certificate after completion of the handshake.
- *
- * Unless you need mbedtls_ssl_peer_cert() in your application, it is
- * recommended to disable this option for reduced RAM usage.
- *
- * \note If this option is disabled, mbedtls_ssl_get_peer_cert() is still
- *       defined, but always returns \c NULL.
- *
- * \note This option has no influence on the protection against the
- *       triple handshake attack. Even if it is disabled, Mbed TLS will
- *       still ensure that certificates do not change during renegotiation,
- *       for exaple by keeping a hash of the peer's certificate.
- *
- * Comment this macro to disable storing the peer's certificate
- * after the handshake.
- */
-#define MBEDTLS_SSL_KEEP_PEER_CERTIFICATE
-
-/**
- * \def MBEDTLS_SSL_HW_RECORD_ACCEL
- *
- * Enable hooking functions in SSL module for hardware acceleration of
- * individual records.
- *
- * Uncomment this macro to enable hooking functions.
- */
-//#define MBEDTLS_SSL_HW_RECORD_ACCEL
-
-/**
- * \def MBEDTLS_SSL_CBC_RECORD_SPLITTING
- *
- * Enable 1/n-1 record splitting for CBC mode in SSLv3 and TLS 1.0.
- *
- * This is a countermeasure to the BEAST attack, which also minimizes the risk
- * of interoperability issues compared to sending 0-length records.
- *
- * Comment this macro to disable 1/n-1 record splitting.
- */
-#define MBEDTLS_SSL_CBC_RECORD_SPLITTING
-
-/**
- * \def MBEDTLS_SSL_RENEGOTIATION
- *
- * Enable support for TLS renegotiation.
- *
- * The two main uses of renegotiation are (1) refresh keys on long-lived
- * connections and (2) client authentication after the initial handshake.
- * If you don't need renegotiation, it's probably better to disable it, since
- * it has been associated with security issues in the past and is easy to
- * misuse/misunderstand.
- *
- * Comment this to disable support for renegotiation.
- *
- * \note   Even if this option is disabled, both client and server are aware
- *         of the Renegotiation Indication Extension (RFC 5746) used to
- *         prevent the SSL renegotiation attack (see RFC 5746 Sect. 1).
- *         (See \c mbedtls_ssl_conf_legacy_renegotiation for the
- *          configuration of this extension).
- *
- */
-#define MBEDTLS_SSL_RENEGOTIATION
-
-/**
- * \def MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO
- *
- * Enable support for receiving and parsing SSLv2 Client Hello messages for the
- * SSL Server module (MBEDTLS_SSL_SRV_C).
- *
- * Uncomment this macro to enable support for SSLv2 Client Hello messages.
- */
-//#define MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO
-
-/**
- * \def MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE
- *
- * Pick the ciphersuite according to the client's preferences rather than ours
- * in the SSL Server module (MBEDTLS_SSL_SRV_C).
- *
- * Uncomment this macro to respect client's ciphersuite order
- */
-//#define MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE
-
-/**
- * \def MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
- *
- * Enable support for RFC 6066 max_fragment_length extension in SSL.
- *
- * Comment this macro to disable support for the max_fragment_length extension
- */
-#define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
-
-/**
- * \def MBEDTLS_SSL_PROTO_SSL3
- *
- * Enable support for SSL 3.0.
- *
- * Requires: MBEDTLS_MD5_C
- *           MBEDTLS_SHA1_C
- *
- * Comment this macro to disable support for SSL 3.0
- */
-//#define MBEDTLS_SSL_PROTO_SSL3
-
-/**
- * \def MBEDTLS_SSL_PROTO_TLS1
- *
- * Enable support for TLS 1.0.
- *
- * Requires: MBEDTLS_MD5_C
- *           MBEDTLS_SHA1_C
- *
- * Comment this macro to disable support for TLS 1.0
- */
-#define MBEDTLS_SSL_PROTO_TLS1
-
-/**
- * \def MBEDTLS_SSL_PROTO_TLS1_1
- *
- * Enable support for TLS 1.1 (and DTLS 1.0 if DTLS is enabled).
- *
- * Requires: MBEDTLS_MD5_C
- *           MBEDTLS_SHA1_C
- *
- * Comment this macro to disable support for TLS 1.1 / DTLS 1.0
- */
-#define MBEDTLS_SSL_PROTO_TLS1_1
-
-/**
- * \def MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Enable support for TLS 1.2 (and DTLS 1.2 if DTLS is enabled).
- *
- * Requires: MBEDTLS_SHA1_C or MBEDTLS_SHA256_C or MBEDTLS_SHA512_C
- *           (Depends on ciphersuites)
- *
- * Comment this macro to disable support for TLS 1.2 / DTLS 1.2
- */
-#define MBEDTLS_SSL_PROTO_TLS1_2
-
-/**
- * \def MBEDTLS_SSL_PROTO_DTLS
- *
- * Enable support for DTLS (all available versions).
- *
- * Enable this and MBEDTLS_SSL_PROTO_TLS1_1 to enable DTLS 1.0,
- * and/or this and MBEDTLS_SSL_PROTO_TLS1_2 to enable DTLS 1.2.
- *
- * Requires: MBEDTLS_SSL_PROTO_TLS1_1
- *        or MBEDTLS_SSL_PROTO_TLS1_2
- *
- * Comment this macro to disable support for DTLS
- */
-#define MBEDTLS_SSL_PROTO_DTLS
-
-/**
- * \def MBEDTLS_SSL_ALPN
- *
- * Enable support for RFC 7301 Application Layer Protocol Negotiation.
- *
- * Comment this macro to disable support for ALPN.
- */
-#define MBEDTLS_SSL_ALPN
-
-/**
- * \def MBEDTLS_SSL_DTLS_ANTI_REPLAY
- *
- * Enable support for the anti-replay mechanism in DTLS.
- *
- * Requires: MBEDTLS_SSL_TLS_C
- *           MBEDTLS_SSL_PROTO_DTLS
- *
- * \warning Disabling this is often a security risk!
- * See mbedtls_ssl_conf_dtls_anti_replay() for details.
- *
- * Comment this to disable anti-replay in DTLS.
- */
-#define MBEDTLS_SSL_DTLS_ANTI_REPLAY
-
-/**
- * \def MBEDTLS_SSL_DTLS_HELLO_VERIFY
- *
- * Enable support for HelloVerifyRequest on DTLS servers.
- *
- * This feature is highly recommended to prevent DTLS servers being used as
- * amplifiers in DoS attacks against other hosts. It should always be enabled
- * unless you know for sure amplification cannot be a problem in the
- * environment in which your server operates.
- *
- * \warning Disabling this can ba a security risk! (see above)
- *
- * Requires: MBEDTLS_SSL_PROTO_DTLS
- *
- * Comment this to disable support for HelloVerifyRequest.
- */
-#define MBEDTLS_SSL_DTLS_HELLO_VERIFY
-
-/**
- * \def MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE
- *
- * Enable server-side support for clients that reconnect from the same port.
- *
- * Some clients unexpectedly close the connection and try to reconnect using the
- * same source port. This needs special support from the server to handle the
- * new connection securely, as described in section 4.2.8 of RFC 6347. This
- * flag enables that support.
- *
- * Requires: MBEDTLS_SSL_DTLS_HELLO_VERIFY
- *
- * Comment this to disable support for clients reusing the source port.
- */
-#define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE
-
-/**
- * \def MBEDTLS_SSL_DTLS_BADMAC_LIMIT
- *
- * Enable support for a limit of records with bad MAC.
- *
- * See mbedtls_ssl_conf_dtls_badmac_limit().
- *
- * Requires: MBEDTLS_SSL_PROTO_DTLS
- */
-#define MBEDTLS_SSL_DTLS_BADMAC_LIMIT
-
-/**
- * \def MBEDTLS_SSL_SESSION_TICKETS
- *
- * Enable support for RFC 5077 session tickets in SSL.
- * Client-side, provides full support for session tickets (maintenance of a
- * session store remains the responsibility of the application, though).
- * Server-side, you also need to provide callbacks for writing and parsing
- * tickets, including authenticated encryption and key management. Example
- * callbacks are provided by MBEDTLS_SSL_TICKET_C.
- *
- * Comment this macro to disable support for SSL session tickets
- */
-#define MBEDTLS_SSL_SESSION_TICKETS
-
-/**
- * \def MBEDTLS_SSL_EXPORT_KEYS
- *
- * Enable support for exporting key block and master secret.
- * This is required for certain users of TLS, e.g. EAP-TLS.
- *
- * Comment this macro to disable support for key export
- */
-#define MBEDTLS_SSL_EXPORT_KEYS
-
-/**
- * \def MBEDTLS_SSL_SERVER_NAME_INDICATION
- *
- * Enable support for RFC 6066 server name indication (SNI) in SSL.
- *
- * Requires: MBEDTLS_X509_CRT_PARSE_C
- *
- * Comment this macro to disable support for server name indication in SSL
- */
-#define MBEDTLS_SSL_SERVER_NAME_INDICATION
-
-/**
- * \def MBEDTLS_SSL_TRUNCATED_HMAC
- *
- * Enable support for RFC 6066 truncated HMAC in SSL.
- *
- * Comment this macro to disable support for truncated HMAC in SSL
- */
-#define MBEDTLS_SSL_TRUNCATED_HMAC
-
-/**
- * \def MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT
- *
- * Fallback to old (pre-2.7), non-conforming implementation of the truncated
- * HMAC extension which also truncates the HMAC key. Note that this option is
- * only meant for a transitory upgrade period and is likely to be removed in
- * a future version of the library.
- *
- * \warning The old implementation is non-compliant and has a security weakness
- *          (2^80 brute force attack on the HMAC key used for a single,
- *          uninterrupted connection). This should only be enabled temporarily
- *          when (1) the use of truncated HMAC is essential in order to save
- *          bandwidth, and (2) the peer is an Mbed TLS stack that doesn't use
- *          the fixed implementation yet (pre-2.7).
- *
- * \deprecated This option is deprecated and will likely be removed in a
- *             future version of Mbed TLS.
- *
- * Uncomment to fallback to old, non-compliant truncated HMAC implementation.
- *
- * Requires: MBEDTLS_SSL_TRUNCATED_HMAC
- */
-//#define MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT
-
-/**
  * \def MBEDTLS_THREADING_ALT
  *
  * Provide your own alternate threading implementation.
@@ -1769,108 +1035,6 @@
  */
 #define MBEDTLS_VERSION_FEATURES
 
-/**
- * \def MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
- *
- * If set, the X509 parser will not break-off when parsing an X509 certificate
- * and encountering an extension in a v1 or v2 certificate.
- *
- * Uncomment to prevent an error.
- */
-//#define MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
-
-/**
- * \def MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
- *
- * If set, the X509 parser will not break-off when parsing an X509 certificate
- * and encountering an unknown critical extension.
- *
- * \warning Depending on your PKI use, enabling this can be a security risk!
- *
- * Uncomment to prevent an error.
- */
-//#define MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
-
-/**
- * \def MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK
- *
- * If set, this enables the X.509 API `mbedtls_x509_crt_verify_with_ca_cb()`
- * and the SSL API `mbedtls_ssl_conf_ca_cb()` which allow users to configure
- * the set of trusted certificates through a callback instead of a linked
- * list.
- *
- * This is useful for example in environments where a large number of trusted
- * certificates is present and storing them in a linked list isn't efficient
- * enough, or when the set of trusted certificates changes frequently.
- *
- * See the documentation of `mbedtls_x509_crt_verify_with_ca_cb()` and
- * `mbedtls_ssl_conf_ca_cb()` for more information.
- *
- * Uncomment to enable trusted certificate callbacks.
- */
-//#define MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK
-
-/**
- * \def MBEDTLS_X509_CHECK_KEY_USAGE
- *
- * Enable verification of the keyUsage extension (CA and leaf certificates).
- *
- * Disabling this avoids problems with mis-issued and/or misused
- * (intermediate) CA and leaf certificates.
- *
- * \warning Depending on your PKI use, disabling this can be a security risk!
- *
- * Comment to skip keyUsage checking for both CA and leaf certificates.
- */
-#define MBEDTLS_X509_CHECK_KEY_USAGE
-
-/**
- * \def MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
- *
- * Enable verification of the extendedKeyUsage extension (leaf certificates).
- *
- * Disabling this avoids problems with mis-issued and/or misused certificates.
- *
- * \warning Depending on your PKI use, disabling this can be a security risk!
- *
- * Comment to skip extendedKeyUsage checking for certificates.
- */
-#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
-
-/**
- * \def MBEDTLS_X509_RSASSA_PSS_SUPPORT
- *
- * Enable parsing and verification of X.509 certificates, CRLs and CSRS
- * signed with RSASSA-PSS (aka PKCS#1 v2.1).
- *
- * Comment this macro to disallow using RSASSA-PSS in certificates.
- */
-#define MBEDTLS_X509_RSASSA_PSS_SUPPORT
-
-/**
- * \def MBEDTLS_ZLIB_SUPPORT
- *
- * If set, the SSL/TLS module uses ZLIB to support compression and
- * decompression of packet data.
- *
- * \warning TLS-level compression MAY REDUCE SECURITY! See for example the
- * CRIME attack. Before enabling this option, you should examine with care if
- * CRIME or similar exploits may be applicable to your use case.
- *
- * \note Currently compression can't be used with DTLS.
- *
- * \deprecated This feature is deprecated and will be removed
- *             in the next major revision of the library.
- *
- * Used in: library/ssl_tls.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *
- * This feature requires zlib library and headers to be present.
- *
- * Uncomment to enable use of ZLIB
- */
-//#define MBEDTLS_ZLIB_SUPPORT
 /* \} name SECTION: mbed TLS feature support */
 
 /**
@@ -1904,66 +1068,8 @@
  *          library/pem.c
  *          library/ctr_drbg.c
  *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA
+ * This module is required to support the TLS ciphersuites that use the AES
+ * cipher.
  *
  * PEM_PARSE uses AES for decrypting encrypted keys.
  */
@@ -1977,18 +1083,8 @@
  * Module:  library/arc4.c
  * Caller:  library/cipher.c
  *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
- *      MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
- *      MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
+ * This module is required to support the TLS ciphersuites that use the ARC4
+ * cipher.
  *
  * \warning   ARC4 is considered a weak cipher and its use constitutes a
  *            security risk. If possible, we recommend avoidng dependencies on
@@ -2003,8 +1099,7 @@
  * Enable the generic ASN1 parser.
  *
  * Module:  library/asn1.c
- * Caller:  library/x509.c
- *          library/dhm.c
+ * Caller:  library/dhm.c
  *          library/pkcs12.c
  *          library/pkcs5.c
  *          library/pkparse.c
@@ -2019,9 +1114,6 @@
  * Module:  library/asn1write.c
  * Caller:  library/ecdsa.c
  *          library/pkwrite.c
- *          library/x509_create.c
- *          library/x509write_crt.c
- *          library/x509write_csr.c
  */
 #define MBEDTLS_ASN1_WRITE_C
 
@@ -2048,7 +1140,6 @@
  *          library/ecdsa.c
  *          library/rsa.c
  *          library/rsa_internal.c
- *          library/ssl_tls.c
  *
  * This module is required for RSA, DHM and ECC (ECDH, ECDSA) support.
  */
@@ -2071,50 +1162,8 @@
  * Module:  library/camellia.c
  * Caller:  library/cipher.c
  *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256
+ * This module is required to support the TLS ciphersuites that use the
+ * Camellia cipher.
  */
 #define MBEDTLS_CAMELLIA_C
 
@@ -2126,47 +1175,8 @@
  * Module:  library/aria.c
  * Caller:  library/cipher.c
  *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *
- *      MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384
- *      MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256
- *      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384
+ * This module is required to support the TLS ciphersuites that use the
+ * ARIA cipher.
  */
 //#define MBEDTLS_ARIA_C
 
@@ -2179,24 +1189,11 @@
  *
  * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
  *
- * This module enables the AES-CCM ciphersuites, if other requisites are
- * enabled as well.
+ * This module is required to support AES-CCM ciphersuites in TLS.
  */
 #define MBEDTLS_CCM_C
 
 /**
- * \def MBEDTLS_CERTS_C
- *
- * Enable the test certificates.
- *
- * Module:  library/certs.c
- * Caller:
- *
- * This module is used for testing (ssl_client/server).
- */
-#define MBEDTLS_CERTS_C
-
-/**
  * \def MBEDTLS_CHACHA20_C
  *
  * Enable the ChaCha20 stream cipher.
@@ -2222,7 +1219,6 @@
  * Enable the generic cipher layer.
  *
  * Module:  library/cipher.c
- * Caller:  library/ssl_tls.c
  *
  * Uncomment to enable generic cipher wrappers.
  */
@@ -2258,20 +1254,6 @@
 #define MBEDTLS_CTR_DRBG_C
 
 /**
- * \def MBEDTLS_DEBUG_C
- *
- * Enable the debug functions.
- *
- * Module:  library/debug.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *
- * This module provides debugging functions.
- */
-#define MBEDTLS_DEBUG_C
-
-/**
  * \def MBEDTLS_DES_C
  *
  * Enable the DES block cipher.
@@ -2280,18 +1262,8 @@
  * Caller:  library/pem.c
  *          library/cipher.c
  *
- * This module enables the following ciphersuites (if other requisites are
- * enabled as well):
- *      MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA
- *      MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
+ * This module is required to support the TLS ciphersuites that use the DES
+ * cipher.
  *
  * PEM_PARSE uses DES/3DES for decrypting encrypted keys.
  *
@@ -2306,8 +1278,6 @@
  * Enable the Diffie-Hellman-Merkle module.
  *
  * Module:  library/dhm.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
  *
  * This module is used by the following key exchanges:
  *      DHE-RSA, DHE-PSK
@@ -2327,8 +1297,6 @@
  * Enable the elliptic curve Diffie-Hellman library.
  *
  * Module:  library/ecdh.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
  *
  * This module is used by the following key exchanges:
  *      ECDHE-ECDSA, ECDHE-RSA, DHE-PSK
@@ -2414,14 +1382,13 @@
 /**
  * \def MBEDTLS_GCM_C
  *
- * Enable the Galois/Counter Mode (GCM) for AES.
+ * Enable the Galois/Counter Mode (GCM).
  *
  * Module:  library/gcm.c
  *
- * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
+ * Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C or MBEDTLS_ARIA_C
  *
- * This module enables the AES-GCM and CAMELLIA-GCM ciphersuites, if other
- * requisites are enabled as well.
+ * This module is required to support the TLS ciphersuites that use GCM.
  */
 #define MBEDTLS_GCM_C
 
@@ -2544,7 +1511,6 @@
  * Module:  library/md5.c
  * Caller:  library/md.c
  *          library/pem.c
- *          library/ssl_tls.c
  *
  * This module is required for SSL/TLS up to version 1.1, and for TLS 1.2
  * depending on the handshake parameters. Further, it is used for checking
@@ -2575,25 +1541,6 @@
 //#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
 
 /**
- * \def MBEDTLS_NET_C
- *
- * Enable the TCP and UDP over IPv6/IPv4 networking routines.
- *
- * \note This module only works on POSIX/Unix (including Linux, BSD and OS X)
- * and Windows. For other platforms, you'll want to disable it, and write your
- * own networking callbacks to be passed to \c mbedtls_ssl_set_bio().
- *
- * \note See also our Knowledge Base article about porting to a new
- * environment:
- * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
- *
- * Module:  library/net_sockets.c
- *
- * This module provides networking routines.
- */
-#define MBEDTLS_NET_C
-
-/**
  * \def MBEDTLS_OID_C
  *
  * Enable the OID database.
@@ -2604,13 +1551,6 @@
  *          library/pkparse.c
  *          library/pkwrite.c
  *          library/rsa.c
- *          library/x509.c
- *          library/x509_create.c
- *          library/x509_crl.c
- *          library/x509_crt.c
- *          library/x509_csr.c
- *          library/x509write_crt.c
- *          library/x509write_csr.c
  *
  * This modules translates between OIDs and internal values.
  */
@@ -2638,9 +1578,6 @@
  * Module:  library/pem.c
  * Caller:  library/dhm.c
  *          library/pkparse.c
- *          library/x509_crl.c
- *          library/x509_crt.c
- *          library/x509_csr.c
  *
  * Requires: MBEDTLS_BASE64_C
  *
@@ -2655,8 +1592,6 @@
  *
  * Module:  library/pem.c
  * Caller:  library/pkwrite.c
- *          library/x509write_crt.c
- *          library/x509write_csr.c
  *
  * Requires: MBEDTLS_BASE64_C
  *
@@ -2670,9 +1605,6 @@
  * Enable the generic public (asymetric) key layer.
  *
  * Module:  library/pk.c
- * Caller:  library/ssl_tls.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
  *
  * Requires: MBEDTLS_RSA_C or MBEDTLS_ECP_C
  *
@@ -2686,8 +1618,6 @@
  * Enable the generic public (asymetric) key parser.
  *
  * Module:  library/pkparse.c
- * Caller:  library/x509_crt.c
- *          library/x509_csr.c
  *
  * Requires: MBEDTLS_PK_C
  *
@@ -2701,7 +1631,6 @@
  * Enable the generic public (asymetric) key writer.
  *
  * Module:  library/pkwrite.c
- * Caller:  library/x509write.c
  *
  * Requires: MBEDTLS_PK_C
  *
@@ -2723,21 +1652,6 @@
 #define MBEDTLS_PKCS5_C
 
 /**
- * \def MBEDTLS_PKCS11_C
- *
- * Enable wrapper for PKCS#11 smartcard support.
- *
- * Module:  library/pkcs11.c
- * Caller:  library/pk.c
- *
- * Requires: MBEDTLS_PK_C
- *
- * This module enables SSL/TLS PKCS #11 smartcard support.
- * Requires the presence of the PKCS#11 helper library (libpkcs11-helper)
- */
-//#define MBEDTLS_PKCS11_C
-
-/**
  * \def MBEDTLS_PKCS12_C
  *
  * Enable PKCS#12 PBE functions.
@@ -2838,10 +1752,6 @@
  *
  * Module:  library/rsa.c
  *          library/rsa_internal.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *          library/x509.c
  *
  * This module is used by the following key exchanges:
  *      RSA, DHE-RSA, ECDHE-RSA, RSA-PSK
@@ -2857,10 +1767,6 @@
  *
  * Module:  library/sha1.c
  * Caller:  library/md.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *          library/x509write_crt.c
  *
  * This module is required for SSL/TLS up to version 1.1, for TLS 1.2
  * depending on the handshake parameters, and for SHA1-signed certificates.
@@ -2880,9 +1786,6 @@
  * Module:  library/sha256.c
  * Caller:  library/entropy.c
  *          library/md.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
  *
  * This module adds support for SHA-224 and SHA-256.
  * This module is required for the SSL/TLS 1.2 PRF function.
@@ -2897,92 +1800,12 @@
  * Module:  library/sha512.c
  * Caller:  library/entropy.c
  *          library/md.c
- *          library/ssl_cli.c
- *          library/ssl_srv.c
  *
  * This module adds support for SHA-384 and SHA-512.
  */
 #define MBEDTLS_SHA512_C
 
 /**
- * \def MBEDTLS_SSL_CACHE_C
- *
- * Enable simple SSL cache implementation.
- *
- * Module:  library/ssl_cache.c
- * Caller:
- *
- * Requires: MBEDTLS_SSL_CACHE_C
- */
-#define MBEDTLS_SSL_CACHE_C
-
-/**
- * \def MBEDTLS_SSL_COOKIE_C
- *
- * Enable basic implementation of DTLS cookies for hello verification.
- *
- * Module:  library/ssl_cookie.c
- * Caller:
- */
-#define MBEDTLS_SSL_COOKIE_C
-
-/**
- * \def MBEDTLS_SSL_TICKET_C
- *
- * Enable an implementation of TLS server-side callbacks for session tickets.
- *
- * Module:  library/ssl_ticket.c
- * Caller:
- *
- * Requires: MBEDTLS_CIPHER_C
- */
-#define MBEDTLS_SSL_TICKET_C
-
-/**
- * \def MBEDTLS_SSL_CLI_C
- *
- * Enable the SSL/TLS client code.
- *
- * Module:  library/ssl_cli.c
- * Caller:
- *
- * Requires: MBEDTLS_SSL_TLS_C
- *
- * This module is required for SSL/TLS client support.
- */
-#define MBEDTLS_SSL_CLI_C
-
-/**
- * \def MBEDTLS_SSL_SRV_C
- *
- * Enable the SSL/TLS server code.
- *
- * Module:  library/ssl_srv.c
- * Caller:
- *
- * Requires: MBEDTLS_SSL_TLS_C
- *
- * This module is required for SSL/TLS server support.
- */
-#define MBEDTLS_SSL_SRV_C
-
-/**
- * \def MBEDTLS_SSL_TLS_C
- *
- * Enable the generic SSL/TLS code.
- *
- * Module:  library/ssl_tls.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *
- * Requires: MBEDTLS_CIPHER_C, MBEDTLS_MD_C
- *           and at least one of the MBEDTLS_SSL_PROTO_XXX defines
- *
- * This module is required for SSL/TLS.
- */
-#define MBEDTLS_SSL_TLS_C
-
-/**
  * \def MBEDTLS_THREADING_C
  *
  * Enable the threading abstraction layer.
@@ -3011,9 +1834,9 @@
  *
  * \note The provided implementation only works on POSIX/Unix (including Linux,
  * BSD and OS X) and Windows. On other platforms, you can either disable that
- * module and provide your own implementations of the callbacks needed by
- * \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and provide
- * your own implementation of the whole module by setting
+ * module and provide your own implementations of the callbacks needed by Mbed
+ * TLS's \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and
+ * provide your own implementation of the whole module by setting
  * \c MBEDTLS_TIMING_ALT in the current file.
  *
  * \note See also our Knowledge Base article about porting to a new
@@ -3039,106 +1862,6 @@
 #define MBEDTLS_VERSION_C
 
 /**
- * \def MBEDTLS_X509_USE_C
- *
- * Enable X.509 core for using certificates.
- *
- * Module:  library/x509.c
- * Caller:  library/x509_crl.c
- *          library/x509_crt.c
- *          library/x509_csr.c
- *
- * Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_BIGNUM_C, MBEDTLS_OID_C,
- *           MBEDTLS_PK_PARSE_C
- *
- * This module is required for the X.509 parsing modules.
- */
-#define MBEDTLS_X509_USE_C
-
-/**
- * \def MBEDTLS_X509_CRT_PARSE_C
- *
- * Enable X.509 certificate parsing.
- *
- * Module:  library/x509_crt.c
- * Caller:  library/ssl_cli.c
- *          library/ssl_srv.c
- *          library/ssl_tls.c
- *
- * Requires: MBEDTLS_X509_USE_C
- *
- * This module is required for X.509 certificate parsing.
- */
-#define MBEDTLS_X509_CRT_PARSE_C
-
-/**
- * \def MBEDTLS_X509_CRL_PARSE_C
- *
- * Enable X.509 CRL parsing.
- *
- * Module:  library/x509_crl.c
- * Caller:  library/x509_crt.c
- *
- * Requires: MBEDTLS_X509_USE_C
- *
- * This module is required for X.509 CRL parsing.
- */
-#define MBEDTLS_X509_CRL_PARSE_C
-
-/**
- * \def MBEDTLS_X509_CSR_PARSE_C
- *
- * Enable X.509 Certificate Signing Request (CSR) parsing.
- *
- * Module:  library/x509_csr.c
- * Caller:  library/x509_crt_write.c
- *
- * Requires: MBEDTLS_X509_USE_C
- *
- * This module is used for reading X.509 certificate request.
- */
-#define MBEDTLS_X509_CSR_PARSE_C
-
-/**
- * \def MBEDTLS_X509_CREATE_C
- *
- * Enable X.509 core for creating certificates.
- *
- * Module:  library/x509_create.c
- *
- * Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_WRITE_C
- *
- * This module is the basis for creating X.509 certificates and CSRs.
- */
-#define MBEDTLS_X509_CREATE_C
-
-/**
- * \def MBEDTLS_X509_CRT_WRITE_C
- *
- * Enable creating X.509 certificates.
- *
- * Module:  library/x509_crt_write.c
- *
- * Requires: MBEDTLS_X509_CREATE_C
- *
- * This module is required for X.509 certificate creation.
- */
-#define MBEDTLS_X509_CRT_WRITE_C
-
-/**
- * \def MBEDTLS_X509_CSR_WRITE_C
- *
- * Enable creating X.509 Certificate Signing Requests (CSR).
- *
- * Module:  library/x509_csr_write.c
- *
- * Requires: MBEDTLS_X509_CREATE_C
- *
- * This module is required for X.509 certificate request writing.
- */
-#define MBEDTLS_X509_CSR_WRITE_C
-
-/**
  * \def MBEDTLS_XTEA_C
  *
  * Enable the XTEA block cipher.
@@ -3228,187 +1951,6 @@
 //#define MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO  mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */
 
 /**
- * \brief       This macro is invoked by the library when an invalid parameter
- *              is detected that is only checked with MBEDTLS_CHECK_PARAMS
- *              (see the documentation of that option for context).
- *
- *              When you leave this undefined here, a default definition is
- *              provided that invokes the function mbedtls_param_failed(),
- *              which is declared in platform_util.h for the benefit of the
- *              library, but that you need to define in your application.
- *
- *              When you define this here, this replaces the default
- *              definition in platform_util.h (which no longer declares the
- *              function mbedtls_param_failed()) and it is your responsibility
- *              to make sure this macro expands to something suitable (in
- *              particular, that all the necessary declarations are visible
- *              from within the library - you can ensure that by providing
- *              them in this file next to the macro definition).
- *
- *              Note that you may define this macro to expand to nothing, in
- *              which case you don't have to worry about declarations or
- *              definitions. However, you will then be notified about invalid
- *              parameters only in non-void functions, and void function will
- *              just silently return early on invalid parameters, which
- *              partially negates the benefits of enabling
- *              #MBEDTLS_CHECK_PARAMS in the first place, so is discouraged.
- *
- * \param cond  The expression that should evaluate to true, but doesn't.
- */
-//#define MBEDTLS_PARAM_FAILED( cond )               assert( cond )
-
-/* SSL Cache options */
-//#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT       86400 /**< 1 day  */
-//#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES      50 /**< Maximum entries in cache */
-
-/* SSL options */
-
-/** \def MBEDTLS_SSL_MAX_CONTENT_LEN
- *
- * Maximum length (in bytes) of incoming and outgoing plaintext fragments.
- *
- * This determines the size of both the incoming and outgoing TLS I/O buffers
- * in such a way that both are capable of holding the specified amount of
- * plaintext data, regardless of the protection mechanism used.
- *
- * To configure incoming and outgoing I/O buffers separately, use
- * #MBEDTLS_SSL_IN_CONTENT_LEN and #MBEDTLS_SSL_OUT_CONTENT_LEN,
- * which overwrite the value set by this option.
- *
- * \note When using a value less than the default of 16KB on the client, it is
- *       recommended to use the Maximum Fragment Length (MFL) extension to
- *       inform the server about this limitation. On the server, there
- *       is no supported, standardized way of informing the client about
- *       restriction on the maximum size of incoming messages, and unless
- *       the limitation has been communicated by other means, it is recommended
- *       to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN
- *       while keeping the default value of 16KB for the incoming buffer.
- *
- * Uncomment to set the maximum plaintext size of both
- * incoming and outgoing I/O buffers.
- */
-//#define MBEDTLS_SSL_MAX_CONTENT_LEN             16384
-
-/** \def MBEDTLS_SSL_IN_CONTENT_LEN
- *
- * Maximum length (in bytes) of incoming plaintext fragments.
- *
- * This determines the size of the incoming TLS I/O buffer in such a way
- * that it is capable of holding the specified amount of plaintext data,
- * regardless of the protection mechanism used.
- *
- * If this option is undefined, it inherits its value from
- * #MBEDTLS_SSL_MAX_CONTENT_LEN.
- *
- * \note When using a value less than the default of 16KB on the client, it is
- *       recommended to use the Maximum Fragment Length (MFL) extension to
- *       inform the server about this limitation. On the server, there
- *       is no supported, standardized way of informing the client about
- *       restriction on the maximum size of incoming messages, and unless
- *       the limitation has been communicated by other means, it is recommended
- *       to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN
- *       while keeping the default value of 16KB for the incoming buffer.
- *
- * Uncomment to set the maximum plaintext size of the incoming I/O buffer
- * independently of the outgoing I/O buffer.
- */
-//#define MBEDTLS_SSL_IN_CONTENT_LEN              16384
-
-/** \def MBEDTLS_SSL_OUT_CONTENT_LEN
- *
- * Maximum length (in bytes) of outgoing plaintext fragments.
- *
- * This determines the size of the outgoing TLS I/O buffer in such a way
- * that it is capable of holding the specified amount of plaintext data,
- * regardless of the protection mechanism used.
- *
- * If this option undefined, it inherits its value from
- * #MBEDTLS_SSL_MAX_CONTENT_LEN.
- *
- * It is possible to save RAM by setting a smaller outward buffer, while keeping
- * the default inward 16384 byte buffer to conform to the TLS specification.
- *
- * The minimum required outward buffer size is determined by the handshake
- * protocol's usage. Handshaking will fail if the outward buffer is too small.
- * The specific size requirement depends on the configured ciphers and any
- * certificate data which is sent during the handshake.
- *
- * Uncomment to set the maximum plaintext size of the outgoing I/O buffer
- * independently of the incoming I/O buffer.
- */
-//#define MBEDTLS_SSL_OUT_CONTENT_LEN             16384
-
-/** \def MBEDTLS_SSL_DTLS_MAX_BUFFERING
- *
- * Maximum number of heap-allocated bytes for the purpose of
- * DTLS handshake message reassembly and future message buffering.
- *
- * This should be at least 9/8 * MBEDTLSSL_IN_CONTENT_LEN
- * to account for a reassembled handshake message of maximum size,
- * together with its reassembly bitmap.
- *
- * A value of 2 * MBEDTLS_SSL_IN_CONTENT_LEN (32768 by default)
- * should be sufficient for all practical situations as it allows
- * to reassembly a large handshake message (such as a certificate)
- * while buffering multiple smaller handshake messages.
- *
- */
-//#define MBEDTLS_SSL_DTLS_MAX_BUFFERING             32768
-
-//#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME     86400 /**< Lifetime of session tickets (if enabled) */
-//#define MBEDTLS_PSK_MAX_LEN               32 /**< Max size of TLS pre-shared keys, in bytes (default 256 bits) */
-//#define MBEDTLS_SSL_COOKIE_TIMEOUT        60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */
-
-/**
- * Complete list of ciphersuites to use, in order of preference.
- *
- * \warning No dependency checking is done on that field! This option can only
- * be used to restrict the set of available ciphersuites. It is your
- * responsibility to make sure the needed modules are active.
- *
- * Use this to save a few hundred bytes of ROM (default ordering of all
- * available ciphersuites) and a few to a few hundred bytes of RAM.
- *
- * The value below is only an example, not the default.
- */
-//#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
-
-/* X509 options */
-//#define MBEDTLS_X509_MAX_INTERMEDIATE_CA   8   /**< Maximum number of intermediate CAs in a verification chain. */
-//#define MBEDTLS_X509_MAX_FILE_PATH_LEN     512 /**< Maximum length of a path/filename string in bytes including the null terminator character ('\0'). */
-
-/**
- * Allow SHA-1 in the default TLS configuration for certificate signing.
- * Without this build-time option, SHA-1 support must be activated explicitly
- * through mbedtls_ssl_conf_cert_profile. Turning on this option is not
- * recommended because of it is possible to generate SHA-1 collisions, however
- * this may be safe for legacy infrastructure where additional controls apply.
- *
- * \warning   SHA-1 is considered a weak message digest and its use constitutes
- *            a security risk. If possible, we recommend avoiding dependencies
- *            on it, and considering stronger message digests instead.
- *
- */
-// #define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES
-
-/**
- * Allow SHA-1 in the default TLS configuration for TLS 1.2 handshake
- * signature and ciphersuite selection. Without this build-time option, SHA-1
- * support must be activated explicitly through mbedtls_ssl_conf_sig_hashes.
- * The use of SHA-1 in TLS <= 1.1 and in HMAC-SHA-1 is always allowed by
- * default. At the time of writing, there is no practical attack on the use
- * of SHA-1 in handshake signatures, hence this option is turned on by default
- * to preserve compatibility with existing peers, but the general
- * warning applies nonetheless:
- *
- * \warning   SHA-1 is considered a weak message digest and its use constitutes
- *            a security risk. If possible, we recommend avoiding dependencies
- *            on it, and considering stronger message digests instead.
- *
- */
-#define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE
-
-/**
  * Uncomment the macro to let mbed TLS use your alternate implementation of
  * mbedtls_platform_zeroize(). This replaces the default implementation in
  * platform_util.c.
diff --git a/include/mbedtls/debug.h b/include/mbedtls/debug.h
deleted file mode 100644
index 736444b..0000000
--- a/include/mbedtls/debug.h
+++ /dev/null
@@ -1,265 +0,0 @@
-/**
- * \file debug.h
- *
- * \brief Functions for controlling and providing debug output from the library.
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_DEBUG_H
-#define MBEDTLS_DEBUG_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "ssl.h"
-
-#if defined(MBEDTLS_ECP_C)
-#include "ecp.h"
-#endif
-
-#if defined(MBEDTLS_DEBUG_C)
-
-#define MBEDTLS_DEBUG_STRIP_PARENS( ... )   __VA_ARGS__
-
-#define MBEDTLS_SSL_DEBUG_MSG( level, args )                    \
-    mbedtls_debug_print_msg( ssl, level, __FILE__, __LINE__,    \
-                             MBEDTLS_DEBUG_STRIP_PARENS args )
-
-#define MBEDTLS_SSL_DEBUG_RET( level, text, ret )                \
-    mbedtls_debug_print_ret( ssl, level, __FILE__, __LINE__, text, ret )
-
-#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len )           \
-    mbedtls_debug_print_buf( ssl, level, __FILE__, __LINE__, text, buf, len )
-
-#if defined(MBEDTLS_BIGNUM_C)
-#define MBEDTLS_SSL_DEBUG_MPI( level, text, X )                  \
-    mbedtls_debug_print_mpi( ssl, level, __FILE__, __LINE__, text, X )
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-#define MBEDTLS_SSL_DEBUG_ECP( level, text, X )                  \
-    mbedtls_debug_print_ecp( ssl, level, __FILE__, __LINE__, text, X )
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt )                \
-    mbedtls_debug_print_crt( ssl, level, __FILE__, __LINE__, text, crt )
-#endif
-
-#if defined(MBEDTLS_ECDH_C)
-#define MBEDTLS_SSL_DEBUG_ECDH( level, ecdh, attr )               \
-    mbedtls_debug_printf_ecdh( ssl, level, __FILE__, __LINE__, ecdh, attr )
-#endif
-
-#else /* MBEDTLS_DEBUG_C */
-
-#define MBEDTLS_SSL_DEBUG_MSG( level, args )            do { } while( 0 )
-#define MBEDTLS_SSL_DEBUG_RET( level, text, ret )       do { } while( 0 )
-#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len )  do { } while( 0 )
-#define MBEDTLS_SSL_DEBUG_MPI( level, text, X )         do { } while( 0 )
-#define MBEDTLS_SSL_DEBUG_ECP( level, text, X )         do { } while( 0 )
-#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt )       do { } while( 0 )
-#define MBEDTLS_SSL_DEBUG_ECDH( level, ecdh, attr )     do { } while( 0 )
-
-#endif /* MBEDTLS_DEBUG_C */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \brief   Set the threshold error level to handle globally all debug output.
- *          Debug messages that have a level over the threshold value are
- *          discarded.
- *          (Default value: 0 = No debug )
- *
- * \param threshold     theshold level of messages to filter on. Messages at a
- *                      higher level will be discarded.
- *                          - Debug levels
- *                              - 0 No debug
- *                              - 1 Error
- *                              - 2 State change
- *                              - 3 Informational
- *                              - 4 Verbose
- */
-void mbedtls_debug_set_threshold( int threshold );
-
-/**
- * \brief    Print a message to the debug output. This function is always used
- *          through the MBEDTLS_SSL_DEBUG_MSG() macro, which supplies the ssl
- *          context, file and line number parameters.
- *
- * \param ssl       SSL context
- * \param level     error level of the debug message
- * \param file      file the message has occurred in
- * \param line      line number the message has occurred at
- * \param format    format specifier, in printf format
- * \param ...       variables used by the format specifier
- *
- * \attention       This function is intended for INTERNAL usage within the
- *                  library only.
- */
-void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
-                              const char *file, int line,
-                              const char *format, ... );
-
-/**
- * \brief   Print the return value of a function to the debug output. This
- *          function is always used through the MBEDTLS_SSL_DEBUG_RET() macro,
- *          which supplies the ssl context, file and line number parameters.
- *
- * \param ssl       SSL context
- * \param level     error level of the debug message
- * \param file      file the error has occurred in
- * \param line      line number the error has occurred in
- * \param text      the name of the function that returned the error
- * \param ret       the return code value
- *
- * \attention       This function is intended for INTERNAL usage within the
- *                  library only.
- */
-void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level,
-                      const char *file, int line,
-                      const char *text, int ret );
-
-/**
- * \brief   Output a buffer of size len bytes to the debug output. This function
- *          is always used through the MBEDTLS_SSL_DEBUG_BUF() macro,
- *          which supplies the ssl context, file and line number parameters.
- *
- * \param ssl       SSL context
- * \param level     error level of the debug message
- * \param file      file the error has occurred in
- * \param line      line number the error has occurred in
- * \param text      a name or label for the buffer being dumped. Normally the
- *                  variable or buffer name
- * \param buf       the buffer to be outputted
- * \param len       length of the buffer
- *
- * \attention       This function is intended for INTERNAL usage within the
- *                  library only.
- */
-void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
-                      const char *file, int line, const char *text,
-                      const unsigned char *buf, size_t len );
-
-#if defined(MBEDTLS_BIGNUM_C)
-/**
- * \brief   Print a MPI variable to the debug output. This function is always
- *          used through the MBEDTLS_SSL_DEBUG_MPI() macro, which supplies the
- *          ssl context, file and line number parameters.
- *
- * \param ssl       SSL context
- * \param level     error level of the debug message
- * \param file      file the error has occurred in
- * \param line      line number the error has occurred in
- * \param text      a name or label for the MPI being output. Normally the
- *                  variable name
- * \param X         the MPI variable
- *
- * \attention       This function is intended for INTERNAL usage within the
- *                  library only.
- */
-void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level,
-                      const char *file, int line,
-                      const char *text, const mbedtls_mpi *X );
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-/**
- * \brief   Print an ECP point to the debug output. This function is always
- *          used through the MBEDTLS_SSL_DEBUG_ECP() macro, which supplies the
- *          ssl context, file and line number parameters.
- *
- * \param ssl       SSL context
- * \param level     error level of the debug message
- * \param file      file the error has occurred in
- * \param line      line number the error has occurred in
- * \param text      a name or label for the ECP point being output. Normally the
- *                  variable name
- * \param X         the ECP point
- *
- * \attention       This function is intended for INTERNAL usage within the
- *                  library only.
- */
-void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level,
-                      const char *file, int line,
-                      const char *text, const mbedtls_ecp_point *X );
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/**
- * \brief   Print a X.509 certificate structure to the debug output. This
- *          function is always used through the MBEDTLS_SSL_DEBUG_CRT() macro,
- *          which supplies the ssl context, file and line number parameters.
- *
- * \param ssl       SSL context
- * \param level     error level of the debug message
- * \param file      file the error has occurred in
- * \param line      line number the error has occurred in
- * \param text      a name or label for the certificate being output
- * \param crt       X.509 certificate structure
- *
- * \attention       This function is intended for INTERNAL usage within the
- *                  library only.
- */
-void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level,
-                      const char *file, int line,
-                      const char *text, const mbedtls_x509_crt *crt );
-#endif
-
-#if defined(MBEDTLS_ECDH_C)
-typedef enum
-{
-    MBEDTLS_DEBUG_ECDH_Q,
-    MBEDTLS_DEBUG_ECDH_QP,
-    MBEDTLS_DEBUG_ECDH_Z,
-} mbedtls_debug_ecdh_attr;
-
-/**
- * \brief   Print a field of the ECDH structure in the SSL context to the debug
- *          output. This function is always used through the
- *          MBEDTLS_SSL_DEBUG_ECDH() macro, which supplies the ssl context, file
- *          and line number parameters.
- *
- * \param ssl       SSL context
- * \param level     error level of the debug message
- * \param file      file the error has occurred in
- * \param line      line number the error has occurred in
- * \param ecdh      the ECDH context
- * \param attr      the identifier of the attribute being output
- *
- * \attention       This function is intended for INTERNAL usage within the
- *                  library only.
- */
-void mbedtls_debug_printf_ecdh( const mbedtls_ssl_context *ssl, int level,
-                                const char *file, int line,
-                                const mbedtls_ecdh_context *ecdh,
-                                mbedtls_debug_ecdh_attr attr );
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* debug.h */
-
diff --git a/include/mbedtls/dhm.h b/include/mbedtls/dhm.h
index 98cd4e2..49eb6a4 100644
--- a/include/mbedtls/dhm.h
+++ b/include/mbedtls/dhm.h
@@ -298,7 +298,6 @@
 void mbedtls_dhm_free( mbedtls_dhm_context *ctx );
 
 #if defined(MBEDTLS_ASN1_PARSE_C)
-/** \ingroup x509_module */
 /**
  * \brief             This function parses DHM parameters in PEM or DER format.
  *
@@ -317,7 +316,6 @@
                            size_t dhminlen );
 
 #if defined(MBEDTLS_FS_IO)
-/** \ingroup x509_module */
 /**
  * \brief          This function loads and parses DHM parameters from a file.
  *
diff --git a/include/mbedtls/net.h b/include/mbedtls/net.h
deleted file mode 100644
index 8cead58..0000000
--- a/include/mbedtls/net.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/**
- * \file net.h
- *
- * \brief Deprecated header file that includes net_sockets.h
- *
- * \deprecated Superseded by mbedtls/net_sockets.h
- */
-/*
- *  Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if !defined(MBEDTLS_DEPRECATED_REMOVED)
-#include "net_sockets.h"
-#if defined(MBEDTLS_DEPRECATED_WARNING)
-#warning "Deprecated header file: Superseded by mbedtls/net_sockets.h"
-#endif /* MBEDTLS_DEPRECATED_WARNING */
-#endif /* !MBEDTLS_DEPRECATED_REMOVED */
diff --git a/include/mbedtls/net_sockets.h b/include/mbedtls/net_sockets.h
deleted file mode 100644
index 4c7ef00..0000000
--- a/include/mbedtls/net_sockets.h
+++ /dev/null
@@ -1,271 +0,0 @@
-/**
- * \file net_sockets.h
- *
- * \brief   Network sockets abstraction layer to integrate Mbed TLS into a
- *          BSD-style sockets API.
- *
- *          The network sockets module provides an example integration of the
- *          Mbed TLS library into a BSD sockets implementation. The module is
- *          intended to be an example of how Mbed TLS can be integrated into a
- *          networking stack, as well as to be Mbed TLS's network integration
- *          for its supported platforms.
- *
- *          The module is intended only to be used with the Mbed TLS library and
- *          is not intended to be used by third party application software
- *          directly.
- *
- *          The supported platforms are as follows:
- *              * Microsoft Windows and Windows CE
- *              * POSIX/Unix platforms including Linux, OS X
- *
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_NET_SOCKETS_H
-#define MBEDTLS_NET_SOCKETS_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "ssl.h"
-
-#include <stddef.h>
-#include <stdint.h>
-
-#define MBEDTLS_ERR_NET_SOCKET_FAILED                     -0x0042  /**< Failed to open a socket. */
-#define MBEDTLS_ERR_NET_CONNECT_FAILED                    -0x0044  /**< The connection to the given server / port failed. */
-#define MBEDTLS_ERR_NET_BIND_FAILED                       -0x0046  /**< Binding of the socket failed. */
-#define MBEDTLS_ERR_NET_LISTEN_FAILED                     -0x0048  /**< Could not listen on the socket. */
-#define MBEDTLS_ERR_NET_ACCEPT_FAILED                     -0x004A  /**< Could not accept the incoming connection. */
-#define MBEDTLS_ERR_NET_RECV_FAILED                       -0x004C  /**< Reading information from the socket failed. */
-#define MBEDTLS_ERR_NET_SEND_FAILED                       -0x004E  /**< Sending information through the socket failed. */
-#define MBEDTLS_ERR_NET_CONN_RESET                        -0x0050  /**< Connection was reset by peer. */
-#define MBEDTLS_ERR_NET_UNKNOWN_HOST                      -0x0052  /**< Failed to get an IP address for the given hostname. */
-#define MBEDTLS_ERR_NET_BUFFER_TOO_SMALL                  -0x0043  /**< Buffer is too small to hold the data. */
-#define MBEDTLS_ERR_NET_INVALID_CONTEXT                   -0x0045  /**< The context is invalid, eg because it was free()ed. */
-#define MBEDTLS_ERR_NET_POLL_FAILED                       -0x0047  /**< Polling the net context failed. */
-#define MBEDTLS_ERR_NET_BAD_INPUT_DATA                    -0x0049  /**< Input invalid. */
-
-#define MBEDTLS_NET_LISTEN_BACKLOG         10 /**< The backlog that listen() should use. */
-
-#define MBEDTLS_NET_PROTO_TCP 0 /**< The TCP transport protocol */
-#define MBEDTLS_NET_PROTO_UDP 1 /**< The UDP transport protocol */
-
-#define MBEDTLS_NET_POLL_READ  1 /**< Used in \c mbedtls_net_poll to check for pending data  */
-#define MBEDTLS_NET_POLL_WRITE 2 /**< Used in \c mbedtls_net_poll to check if write possible */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * Wrapper type for sockets.
- *
- * Currently backed by just a file descriptor, but might be more in the future
- * (eg two file descriptors for combined IPv4 + IPv6 support, or additional
- * structures for hand-made UDP demultiplexing).
- */
-typedef struct mbedtls_net_context
-{
-    int fd;             /**< The underlying file descriptor                 */
-}
-mbedtls_net_context;
-
-/**
- * \brief          Initialize a context
- *                 Just makes the context ready to be used or freed safely.
- *
- * \param ctx      Context to initialize
- */
-void mbedtls_net_init( mbedtls_net_context *ctx );
-
-/**
- * \brief          Initiate a connection with host:port in the given protocol
- *
- * \param ctx      Socket to use
- * \param host     Host to connect to
- * \param port     Port to connect to
- * \param proto    Protocol: MBEDTLS_NET_PROTO_TCP or MBEDTLS_NET_PROTO_UDP
- *
- * \return         0 if successful, or one of:
- *                      MBEDTLS_ERR_NET_SOCKET_FAILED,
- *                      MBEDTLS_ERR_NET_UNKNOWN_HOST,
- *                      MBEDTLS_ERR_NET_CONNECT_FAILED
- *
- * \note           Sets the socket in connected mode even with UDP.
- */
-int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host, const char *port, int proto );
-
-/**
- * \brief          Create a receiving socket on bind_ip:port in the chosen
- *                 protocol. If bind_ip == NULL, all interfaces are bound.
- *
- * \param ctx      Socket to use
- * \param bind_ip  IP to bind to, can be NULL
- * \param port     Port number to use
- * \param proto    Protocol: MBEDTLS_NET_PROTO_TCP or MBEDTLS_NET_PROTO_UDP
- *
- * \return         0 if successful, or one of:
- *                      MBEDTLS_ERR_NET_SOCKET_FAILED,
- *                      MBEDTLS_ERR_NET_BIND_FAILED,
- *                      MBEDTLS_ERR_NET_LISTEN_FAILED
- *
- * \note           Regardless of the protocol, opens the sockets and binds it.
- *                 In addition, make the socket listening if protocol is TCP.
- */
-int mbedtls_net_bind( mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto );
-
-/**
- * \brief           Accept a connection from a remote client
- *
- * \param bind_ctx  Relevant socket
- * \param client_ctx Will contain the connected client socket
- * \param client_ip Will contain the client IP address, can be NULL
- * \param buf_size  Size of the client_ip buffer
- * \param ip_len    Will receive the size of the client IP written,
- *                  can be NULL if client_ip is null
- *
- * \return          0 if successful, or
- *                  MBEDTLS_ERR_NET_ACCEPT_FAILED, or
- *                  MBEDTLS_ERR_NET_BUFFER_TOO_SMALL if buf_size is too small,
- *                  MBEDTLS_ERR_SSL_WANT_READ if bind_fd was set to
- *                  non-blocking and accept() would block.
- */
-int mbedtls_net_accept( mbedtls_net_context *bind_ctx,
-                        mbedtls_net_context *client_ctx,
-                        void *client_ip, size_t buf_size, size_t *ip_len );
-
-/**
- * \brief          Check and wait for the context to be ready for read/write
- *
- * \param ctx      Socket to check
- * \param rw       Bitflag composed of MBEDTLS_NET_POLL_READ and
- *                 MBEDTLS_NET_POLL_WRITE specifying the events
- *                 to wait for:
- *                 - If MBEDTLS_NET_POLL_READ is set, the function
- *                   will return as soon as the net context is available
- *                   for reading.
- *                 - If MBEDTLS_NET_POLL_WRITE is set, the function
- *                   will return as soon as the net context is available
- *                   for writing.
- * \param timeout  Maximal amount of time to wait before returning,
- *                 in milliseconds. If \c timeout is zero, the
- *                 function returns immediately. If \c timeout is
- *                 -1u, the function blocks potentially indefinitely.
- *
- * \return         Bitmask composed of MBEDTLS_NET_POLL_READ/WRITE
- *                 on success or timeout, or a negative return code otherwise.
- */
-int mbedtls_net_poll( mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout );
-
-/**
- * \brief          Set the socket blocking
- *
- * \param ctx      Socket to set
- *
- * \return         0 if successful, or a non-zero error code
- */
-int mbedtls_net_set_block( mbedtls_net_context *ctx );
-
-/**
- * \brief          Set the socket non-blocking
- *
- * \param ctx      Socket to set
- *
- * \return         0 if successful, or a non-zero error code
- */
-int mbedtls_net_set_nonblock( mbedtls_net_context *ctx );
-
-/**
- * \brief          Portable usleep helper
- *
- * \param usec     Amount of microseconds to sleep
- *
- * \note           Real amount of time slept will not be less than
- *                 select()'s timeout granularity (typically, 10ms).
- */
-void mbedtls_net_usleep( unsigned long usec );
-
-/**
- * \brief          Read at most 'len' characters. If no error occurs,
- *                 the actual amount read is returned.
- *
- * \param ctx      Socket
- * \param buf      The buffer to write to
- * \param len      Maximum length of the buffer
- *
- * \return         the number of bytes received,
- *                 or a non-zero error code; with a non-blocking socket,
- *                 MBEDTLS_ERR_SSL_WANT_READ indicates read() would block.
- */
-int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len );
-
-/**
- * \brief          Write at most 'len' characters. If no error occurs,
- *                 the actual amount read is returned.
- *
- * \param ctx      Socket
- * \param buf      The buffer to read from
- * \param len      The length of the buffer
- *
- * \return         the number of bytes sent,
- *                 or a non-zero error code; with a non-blocking socket,
- *                 MBEDTLS_ERR_SSL_WANT_WRITE indicates write() would block.
- */
-int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len );
-
-/**
- * \brief          Read at most 'len' characters, blocking for at most
- *                 'timeout' seconds. If no error occurs, the actual amount
- *                 read is returned.
- *
- * \param ctx      Socket
- * \param buf      The buffer to write to
- * \param len      Maximum length of the buffer
- * \param timeout  Maximum number of milliseconds to wait for data
- *                 0 means no timeout (wait forever)
- *
- * \return         the number of bytes received,
- *                 or a non-zero error code:
- *                 MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out,
- *                 MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal.
- *
- * \note           This function will block (until data becomes available or
- *                 timeout is reached) even if the socket is set to
- *                 non-blocking. Handling timeouts with non-blocking reads
- *                 requires a different strategy.
- */
-int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf, size_t len,
-                      uint32_t timeout );
-
-/**
- * \brief          Gracefully shutdown the connection and free associated data
- *
- * \param ctx      The context to free
- */
-void mbedtls_net_free( mbedtls_net_context *ctx );
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* net_sockets.h */
diff --git a/include/mbedtls/padlock.h b/include/mbedtls/padlock.h
index f05b72b..721a5d4 100644
--- a/include/mbedtls/padlock.h
+++ b/include/mbedtls/padlock.h
@@ -59,7 +59,7 @@
 #define MBEDTLS_PADLOCK_PHE 0x0C00
 #define MBEDTLS_PADLOCK_PMM 0x3000
 
-#define MBEDTLS_PADLOCK_ALIGN16(x) (uint32_t *) (16 + ((int32_t) x & ~15))
+#define MBEDTLS_PADLOCK_ALIGN16(x) (uint32_t *) (16 + ((int32_t) (x) & ~15))
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/include/mbedtls/pkcs11.h b/include/mbedtls/pkcs11.h
deleted file mode 100644
index 02427dd..0000000
--- a/include/mbedtls/pkcs11.h
+++ /dev/null
@@ -1,175 +0,0 @@
-/**
- * \file pkcs11.h
- *
- * \brief Wrapper for PKCS#11 library libpkcs11-helper
- *
- * \author Adriaan de Jong <dejong@fox-it.com>
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_PKCS11_H
-#define MBEDTLS_PKCS11_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PKCS11_C)
-
-#include "x509_crt.h"
-
-#include <pkcs11-helper-1.0/pkcs11h-certificate.h>
-
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * Context for PKCS #11 private keys.
- */
-typedef struct mbedtls_pkcs11_context
-{
-        pkcs11h_certificate_t pkcs11h_cert;
-        int len;
-} mbedtls_pkcs11_context;
-
-/**
- * Initialize a mbedtls_pkcs11_context.
- * (Just making memory references valid.)
- */
-void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx );
-
-/**
- * Fill in a mbed TLS certificate, based on the given PKCS11 helper certificate.
- *
- * \param cert          X.509 certificate to fill
- * \param pkcs11h_cert  PKCS #11 helper certificate
- *
- * \return              0 on success.
- */
-int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11h_cert );
-
-/**
- * Set up a mbedtls_pkcs11_context storing the given certificate. Note that the
- * mbedtls_pkcs11_context will take over control of the certificate, freeing it when
- * done.
- *
- * \param priv_key      Private key structure to fill.
- * \param pkcs11_cert   PKCS #11 helper certificate
- *
- * \return              0 on success
- */
-int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key,
-        pkcs11h_certificate_t pkcs11_cert );
-
-/**
- * Free the contents of the given private key context. Note that the structure
- * itself is not freed.
- *
- * \param priv_key      Private key structure to cleanup
- */
-void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key );
-
-/**
- * \brief          Do an RSA private key decrypt, then remove the message
- *                 padding
- *
- * \param ctx      PKCS #11 context
- * \param mode     must be MBEDTLS_RSA_PRIVATE, for compatibility with rsa.c's signature
- * \param input    buffer holding the encrypted data
- * \param output   buffer that will hold the plaintext
- * \param olen     will contain the plaintext length
- * \param output_max_len    maximum length of the output buffer
- *
- * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note           The output buffer must be as large as the size
- *                 of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
- *                 an error is thrown.
- */
-int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx,
-                       int mode, size_t *olen,
-                       const unsigned char *input,
-                       unsigned char *output,
-                       size_t output_max_len );
-
-/**
- * \brief          Do a private RSA to sign a message digest
- *
- * \param ctx      PKCS #11 context
- * \param mode     must be MBEDTLS_RSA_PRIVATE, for compatibility with rsa.c's signature
- * \param md_alg   a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
- * \param hashlen  message digest length (for MBEDTLS_MD_NONE only)
- * \param hash     buffer holding the message digest
- * \param sig      buffer that will hold the ciphertext
- *
- * \return         0 if the signing operation was successful,
- *                 or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note           The "sig" buffer must be as large as the size
- *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
- */
-int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx,
-                    int mode,
-                    mbedtls_md_type_t md_alg,
-                    unsigned int hashlen,
-                    const unsigned char *hash,
-                    unsigned char *sig );
-
-/**
- * SSL/TLS wrappers for PKCS#11 functions
- */
-static inline int mbedtls_ssl_pkcs11_decrypt( void *ctx, int mode, size_t *olen,
-                        const unsigned char *input, unsigned char *output,
-                        size_t output_max_len )
-{
-    return mbedtls_pkcs11_decrypt( (mbedtls_pkcs11_context *) ctx, mode, olen, input, output,
-                           output_max_len );
-}
-
-static inline int mbedtls_ssl_pkcs11_sign( void *ctx,
-                     int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
-                     int mode, mbedtls_md_type_t md_alg, unsigned int hashlen,
-                     const unsigned char *hash, unsigned char *sig )
-{
-    ((void) f_rng);
-    ((void) p_rng);
-    return mbedtls_pkcs11_sign( (mbedtls_pkcs11_context *) ctx, mode, md_alg,
-                        hashlen, hash, sig );
-}
-
-static inline size_t mbedtls_ssl_pkcs11_key_len( void *ctx )
-{
-    return ( (mbedtls_pkcs11_context *) ctx )->len;
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* MBEDTLS_PKCS11_C */
-
-#endif /* MBEDTLS_PKCS11_H */
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
deleted file mode 100644
index 135be05..0000000
--- a/include/mbedtls/ssl.h
+++ /dev/null
@@ -1,3494 +0,0 @@
-/**
- * \file ssl.h
- *
- * \brief SSL/TLS functions.
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_SSL_H
-#define MBEDTLS_SSL_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "bignum.h"
-#include "ecp.h"
-
-#include "ssl_ciphersuites.h"
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#include "x509_crt.h"
-#include "x509_crl.h"
-#endif
-
-#if defined(MBEDTLS_DHM_C)
-#include "dhm.h"
-#endif
-
-#if defined(MBEDTLS_ECDH_C)
-#include "ecdh.h"
-#endif
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-
-#if defined(MBEDTLS_DEPRECATED_WARNING)
-#warning "Record compression support via MBEDTLS_ZLIB_SUPPORT is deprecated and will be removed in the next major revision of the library"
-#endif
-
-#if defined(MBEDTLS_DEPRECATED_REMOVED)
-#error "Record compression support via MBEDTLS_ZLIB_SUPPORT is deprecated and cannot be used if MBEDTLS_DEPRECATED_REMOVED is set"
-#endif
-
-#include "zlib.h"
-#endif
-
-#if defined(MBEDTLS_HAVE_TIME)
-#include "platform_time.h"
-#endif
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "psa/crypto.h"
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-/*
- * SSL Error codes
- */
-#define MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE               -0x7080  /**< The requested feature is not available. */
-#define MBEDTLS_ERR_SSL_BAD_INPUT_DATA                    -0x7100  /**< Bad input parameters to function. */
-#define MBEDTLS_ERR_SSL_INVALID_MAC                       -0x7180  /**< Verification of the message MAC failed. */
-#define MBEDTLS_ERR_SSL_INVALID_RECORD                    -0x7200  /**< An invalid SSL record was received. */
-#define MBEDTLS_ERR_SSL_CONN_EOF                          -0x7280  /**< The connection indicated an EOF. */
-#define MBEDTLS_ERR_SSL_UNKNOWN_CIPHER                    -0x7300  /**< An unknown cipher was received. */
-#define MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN                  -0x7380  /**< The server has no ciphersuites in common with the client. */
-#define MBEDTLS_ERR_SSL_NO_RNG                            -0x7400  /**< No RNG was provided to the SSL module. */
-#define MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE             -0x7480  /**< No client certification received from the client, but required by the authentication mode. */
-#define MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE             -0x7500  /**< Our own certificate(s) is/are too large to send in an SSL message. */
-#define MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED              -0x7580  /**< The own certificate is not set, but needed by the server. */
-#define MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED              -0x7600  /**< The own private key or pre-shared key is not set, but needed. */
-#define MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED                 -0x7680  /**< No CA Chain is set, but required to operate. */
-#define MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE                -0x7700  /**< An unexpected message was received from our peer. */
-#define MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE               -0x7780  /**< A fatal alert message was received from our peer. */
-#define MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED                -0x7800  /**< Verification of our peer failed. */
-#define MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY                 -0x7880  /**< The peer notified us that the connection is going to be closed. */
-#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO               -0x7900  /**< Processing of the ClientHello handshake message failed. */
-#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO               -0x7980  /**< Processing of the ServerHello handshake message failed. */
-#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE                -0x7A00  /**< Processing of the Certificate handshake message failed. */
-#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST        -0x7A80  /**< Processing of the CertificateRequest handshake message failed. */
-#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE        -0x7B00  /**< Processing of the ServerKeyExchange handshake message failed. */
-#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE          -0x7B80  /**< Processing of the ServerHelloDone handshake message failed. */
-#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE        -0x7C00  /**< Processing of the ClientKeyExchange handshake message failed. */
-#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP     -0x7C80  /**< Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public. */
-#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS     -0x7D00  /**< Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret. */
-#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY         -0x7D80  /**< Processing of the CertificateVerify handshake message failed. */
-#define MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC         -0x7E00  /**< Processing of the ChangeCipherSpec handshake message failed. */
-#define MBEDTLS_ERR_SSL_BAD_HS_FINISHED                   -0x7E80  /**< Processing of the Finished handshake message failed. */
-#define MBEDTLS_ERR_SSL_ALLOC_FAILED                      -0x7F00  /**< Memory allocation failed */
-#define MBEDTLS_ERR_SSL_HW_ACCEL_FAILED                   -0x7F80  /**< Hardware acceleration function returned with error */
-#define MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH              -0x6F80  /**< Hardware acceleration function skipped / left alone data */
-#define MBEDTLS_ERR_SSL_COMPRESSION_FAILED                -0x6F00  /**< Processing of the compression / decompression failed */
-#define MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION           -0x6E80  /**< Handshake protocol not within min/max boundaries */
-#define MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET         -0x6E00  /**< Processing of the NewSessionTicket handshake message failed. */
-#define MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED            -0x6D80  /**< Session ticket has expired. */
-#define MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH                  -0x6D00  /**< Public key type mismatch (eg, asked for RSA key exchange and presented EC key) */
-#define MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY                  -0x6C80  /**< Unknown identity received (eg, PSK identity) */
-#define MBEDTLS_ERR_SSL_INTERNAL_ERROR                    -0x6C00  /**< Internal error (eg, unexpected failure in lower-level module) */
-#define MBEDTLS_ERR_SSL_COUNTER_WRAPPING                  -0x6B80  /**< A counter would wrap (eg, too many messages exchanged). */
-#define MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO       -0x6B00  /**< Unexpected message at ServerHello in renegotiation. */
-#define MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED             -0x6A80  /**< DTLS client must retry for hello verification */
-#define MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL                  -0x6A00  /**< A buffer is too small to receive or write a message */
-#define MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE             -0x6980  /**< None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages). */
-#define MBEDTLS_ERR_SSL_WANT_READ                         -0x6900  /**< No data of requested type currently available on underlying transport. */
-#define MBEDTLS_ERR_SSL_WANT_WRITE                        -0x6880  /**< Connection requires a write call. */
-#define MBEDTLS_ERR_SSL_TIMEOUT                           -0x6800  /**< The operation timed out. */
-#define MBEDTLS_ERR_SSL_CLIENT_RECONNECT                  -0x6780  /**< The client initiated a reconnect from the same port. */
-#define MBEDTLS_ERR_SSL_UNEXPECTED_RECORD                 -0x6700  /**< Record header looks valid but is not expected. */
-#define MBEDTLS_ERR_SSL_NON_FATAL                         -0x6680  /**< The alert message received indicates a non-fatal error. */
-#define MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH               -0x6600  /**< Couldn't set the hash for verifying CertificateVerify */
-#define MBEDTLS_ERR_SSL_CONTINUE_PROCESSING               -0x6580  /**< Internal-only message signaling that further message-processing should be done */
-#define MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS                 -0x6500  /**< The asynchronous operation is not completed yet. */
-#define MBEDTLS_ERR_SSL_EARLY_MESSAGE                     -0x6480  /**< Internal-only message signaling that a message arrived early. */
-#define MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS                -0x7000  /**< A cryptographic operation is in progress. Try again later. */
-
-/*
- * Various constants
- */
-#define MBEDTLS_SSL_MAJOR_VERSION_3             3
-#define MBEDTLS_SSL_MINOR_VERSION_0             0   /*!< SSL v3.0 */
-#define MBEDTLS_SSL_MINOR_VERSION_1             1   /*!< TLS v1.0 */
-#define MBEDTLS_SSL_MINOR_VERSION_2             2   /*!< TLS v1.1 */
-#define MBEDTLS_SSL_MINOR_VERSION_3             3   /*!< TLS v1.2 */
-
-#define MBEDTLS_SSL_TRANSPORT_STREAM            0   /*!< TLS      */
-#define MBEDTLS_SSL_TRANSPORT_DATAGRAM          1   /*!< DTLS     */
-
-#define MBEDTLS_SSL_MAX_HOST_NAME_LEN           255 /*!< Maximum host name defined in RFC 1035 */
-
-/* RFC 6066 section 4, see also mfl_code_to_length in ssl_tls.c
- * NONE must be zero so that memset()ing structure to zero works */
-#define MBEDTLS_SSL_MAX_FRAG_LEN_NONE           0   /*!< don't use this extension   */
-#define MBEDTLS_SSL_MAX_FRAG_LEN_512            1   /*!< MaxFragmentLength 2^9      */
-#define MBEDTLS_SSL_MAX_FRAG_LEN_1024           2   /*!< MaxFragmentLength 2^10     */
-#define MBEDTLS_SSL_MAX_FRAG_LEN_2048           3   /*!< MaxFragmentLength 2^11     */
-#define MBEDTLS_SSL_MAX_FRAG_LEN_4096           4   /*!< MaxFragmentLength 2^12     */
-#define MBEDTLS_SSL_MAX_FRAG_LEN_INVALID        5   /*!< first invalid value        */
-
-#define MBEDTLS_SSL_IS_CLIENT                   0
-#define MBEDTLS_SSL_IS_SERVER                   1
-
-#define MBEDTLS_SSL_IS_NOT_FALLBACK             0
-#define MBEDTLS_SSL_IS_FALLBACK                 1
-
-#define MBEDTLS_SSL_EXTENDED_MS_DISABLED        0
-#define MBEDTLS_SSL_EXTENDED_MS_ENABLED         1
-
-#define MBEDTLS_SSL_ETM_DISABLED                0
-#define MBEDTLS_SSL_ETM_ENABLED                 1
-
-#define MBEDTLS_SSL_COMPRESS_NULL               0
-#define MBEDTLS_SSL_COMPRESS_DEFLATE            1
-
-#define MBEDTLS_SSL_VERIFY_NONE                 0
-#define MBEDTLS_SSL_VERIFY_OPTIONAL             1
-#define MBEDTLS_SSL_VERIFY_REQUIRED             2
-#define MBEDTLS_SSL_VERIFY_UNSET                3 /* Used only for sni_authmode */
-
-#define MBEDTLS_SSL_LEGACY_RENEGOTIATION        0
-#define MBEDTLS_SSL_SECURE_RENEGOTIATION        1
-
-#define MBEDTLS_SSL_RENEGOTIATION_DISABLED      0
-#define MBEDTLS_SSL_RENEGOTIATION_ENABLED       1
-
-#define MBEDTLS_SSL_ANTI_REPLAY_DISABLED        0
-#define MBEDTLS_SSL_ANTI_REPLAY_ENABLED         1
-
-#define MBEDTLS_SSL_RENEGOTIATION_NOT_ENFORCED  -1
-#define MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT  16
-
-#define MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION     0
-#define MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION  1
-#define MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE      2
-
-#define MBEDTLS_SSL_TRUNC_HMAC_DISABLED         0
-#define MBEDTLS_SSL_TRUNC_HMAC_ENABLED          1
-#define MBEDTLS_SSL_TRUNCATED_HMAC_LEN          10  /* 80 bits, rfc 6066 section 7 */
-
-#define MBEDTLS_SSL_SESSION_TICKETS_DISABLED     0
-#define MBEDTLS_SSL_SESSION_TICKETS_ENABLED      1
-
-#define MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED    0
-#define MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED     1
-
-#define MBEDTLS_SSL_ARC4_ENABLED                0
-#define MBEDTLS_SSL_ARC4_DISABLED               1
-
-#define MBEDTLS_SSL_PRESET_DEFAULT              0
-#define MBEDTLS_SSL_PRESET_SUITEB               2
-
-#define MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED       1
-#define MBEDTLS_SSL_CERT_REQ_CA_LIST_DISABLED      0
-
-/*
- * Default range for DTLS retransmission timer value, in milliseconds.
- * RFC 6347 4.2.4.1 says from 1 second to 60 seconds.
- */
-#define MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MIN    1000
-#define MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MAX   60000
-
-/**
- * \name SECTION: Module settings
- *
- * The configuration options you can set for this module are in this section.
- * Either change them in config.h or define them on the compiler command line.
- * \{
- */
-
-#if !defined(MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME)
-#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME     86400 /**< Lifetime of session tickets (if enabled) */
-#endif
-
-/*
- * Maximum fragment length in bytes,
- * determines the size of each of the two internal I/O buffers.
- *
- * Note: the RFC defines the default size of SSL / TLS messages. If you
- * change the value here, other clients / servers may not be able to
- * communicate with you anymore. Only change this value if you control
- * both sides of the connection and have it reduced at both sides, or
- * if you're using the Max Fragment Length extension and you know all your
- * peers are using it too!
- */
-#if !defined(MBEDTLS_SSL_MAX_CONTENT_LEN)
-#define MBEDTLS_SSL_MAX_CONTENT_LEN         16384   /**< Size of the input / output buffer */
-#endif
-
-#if !defined(MBEDTLS_SSL_IN_CONTENT_LEN)
-#define MBEDTLS_SSL_IN_CONTENT_LEN MBEDTLS_SSL_MAX_CONTENT_LEN
-#endif
-
-#if !defined(MBEDTLS_SSL_OUT_CONTENT_LEN)
-#define MBEDTLS_SSL_OUT_CONTENT_LEN MBEDTLS_SSL_MAX_CONTENT_LEN
-#endif
-
-/*
- * Maximum number of heap-allocated bytes for the purpose of
- * DTLS handshake message reassembly and future message buffering.
- */
-#if !defined(MBEDTLS_SSL_DTLS_MAX_BUFFERING)
-#define MBEDTLS_SSL_DTLS_MAX_BUFFERING 32768
-#endif
-
-/* \} name SECTION: Module settings */
-
-/*
- * Length of the verify data for secure renegotiation
- */
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-#define MBEDTLS_SSL_VERIFY_DATA_MAX_LEN 36
-#else
-#define MBEDTLS_SSL_VERIFY_DATA_MAX_LEN 12
-#endif
-
-/*
- * Signaling ciphersuite values (SCSV)
- */
-#define MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO    0xFF   /**< renegotiation info ext */
-#define MBEDTLS_SSL_FALLBACK_SCSV_VALUE         0x5600 /**< RFC 7507 section 2 */
-
-/*
- * Supported Signature and Hash algorithms (For TLS 1.2)
- * RFC 5246 section 7.4.1.4.1
- */
-#define MBEDTLS_SSL_HASH_NONE                0
-#define MBEDTLS_SSL_HASH_MD5                 1
-#define MBEDTLS_SSL_HASH_SHA1                2
-#define MBEDTLS_SSL_HASH_SHA224              3
-#define MBEDTLS_SSL_HASH_SHA256              4
-#define MBEDTLS_SSL_HASH_SHA384              5
-#define MBEDTLS_SSL_HASH_SHA512              6
-
-#define MBEDTLS_SSL_SIG_ANON                 0
-#define MBEDTLS_SSL_SIG_RSA                  1
-#define MBEDTLS_SSL_SIG_ECDSA                3
-
-/*
- * Client Certificate Types
- * RFC 5246 section 7.4.4 plus RFC 4492 section 5.5
- */
-#define MBEDTLS_SSL_CERT_TYPE_RSA_SIGN       1
-#define MBEDTLS_SSL_CERT_TYPE_ECDSA_SIGN    64
-
-/*
- * Message, alert and handshake types
- */
-#define MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC     20
-#define MBEDTLS_SSL_MSG_ALERT                  21
-#define MBEDTLS_SSL_MSG_HANDSHAKE              22
-#define MBEDTLS_SSL_MSG_APPLICATION_DATA       23
-
-#define MBEDTLS_SSL_ALERT_LEVEL_WARNING         1
-#define MBEDTLS_SSL_ALERT_LEVEL_FATAL           2
-
-#define MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY           0  /* 0x00 */
-#define MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE    10  /* 0x0A */
-#define MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC        20  /* 0x14 */
-#define MBEDTLS_SSL_ALERT_MSG_DECRYPTION_FAILED     21  /* 0x15 */
-#define MBEDTLS_SSL_ALERT_MSG_RECORD_OVERFLOW       22  /* 0x16 */
-#define MBEDTLS_SSL_ALERT_MSG_DECOMPRESSION_FAILURE 30  /* 0x1E */
-#define MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE     40  /* 0x28 */
-#define MBEDTLS_SSL_ALERT_MSG_NO_CERT               41  /* 0x29 */
-#define MBEDTLS_SSL_ALERT_MSG_BAD_CERT              42  /* 0x2A */
-#define MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT      43  /* 0x2B */
-#define MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED          44  /* 0x2C */
-#define MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED          45  /* 0x2D */
-#define MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN          46  /* 0x2E */
-#define MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER     47  /* 0x2F */
-#define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA            48  /* 0x30 */
-#define MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED         49  /* 0x31 */
-#define MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR          50  /* 0x32 */
-#define MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR         51  /* 0x33 */
-#define MBEDTLS_SSL_ALERT_MSG_EXPORT_RESTRICTION    60  /* 0x3C */
-#define MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION      70  /* 0x46 */
-#define MBEDTLS_SSL_ALERT_MSG_INSUFFICIENT_SECURITY 71  /* 0x47 */
-#define MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR        80  /* 0x50 */
-#define MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK 86  /* 0x56 */
-#define MBEDTLS_SSL_ALERT_MSG_USER_CANCELED         90  /* 0x5A */
-#define MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION     100  /* 0x64 */
-#define MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT      110  /* 0x6E */
-#define MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME    112  /* 0x70 */
-#define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY 115  /* 0x73 */
-#define MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL 120 /* 0x78 */
-
-#define MBEDTLS_SSL_HS_HELLO_REQUEST            0
-#define MBEDTLS_SSL_HS_CLIENT_HELLO             1
-#define MBEDTLS_SSL_HS_SERVER_HELLO             2
-#define MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST     3
-#define MBEDTLS_SSL_HS_NEW_SESSION_TICKET       4
-#define MBEDTLS_SSL_HS_CERTIFICATE             11
-#define MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE     12
-#define MBEDTLS_SSL_HS_CERTIFICATE_REQUEST     13
-#define MBEDTLS_SSL_HS_SERVER_HELLO_DONE       14
-#define MBEDTLS_SSL_HS_CERTIFICATE_VERIFY      15
-#define MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE     16
-#define MBEDTLS_SSL_HS_FINISHED                20
-
-/*
- * TLS extensions
- */
-#define MBEDTLS_TLS_EXT_SERVERNAME                   0
-#define MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME          0
-
-#define MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH          1
-
-#define MBEDTLS_TLS_EXT_TRUNCATED_HMAC               4
-
-#define MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES   10
-#define MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS     11
-
-#define MBEDTLS_TLS_EXT_SIG_ALG                     13
-
-#define MBEDTLS_TLS_EXT_ALPN                        16
-
-#define MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC            22 /* 0x16 */
-#define MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET  0x0017 /* 23 */
-
-#define MBEDTLS_TLS_EXT_SESSION_TICKET              35
-
-#define MBEDTLS_TLS_EXT_ECJPAKE_KKPP               256 /* experimental */
-
-#define MBEDTLS_TLS_EXT_RENEGOTIATION_INFO      0xFF01
-
-/*
- * Size defines
- */
-#if !defined(MBEDTLS_PSK_MAX_LEN)
-#define MBEDTLS_PSK_MAX_LEN            32 /* 256 bits */
-#endif
-
-/* Dummy type used only for its size */
-union mbedtls_ssl_premaster_secret
-{
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-    unsigned char _pms_rsa[48];                         /* RFC 5246 8.1.1 */
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
-    unsigned char _pms_dhm[MBEDTLS_MPI_MAX_SIZE];      /* RFC 5246 8.1.2 */
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)    || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)  || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)     || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-    unsigned char _pms_ecdh[MBEDTLS_ECP_MAX_BYTES];    /* RFC 4492 5.10 */
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-    unsigned char _pms_psk[4 + 2 * MBEDTLS_PSK_MAX_LEN];       /* RFC 4279 2 */
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-    unsigned char _pms_dhe_psk[4 + MBEDTLS_MPI_MAX_SIZE
-                                 + MBEDTLS_PSK_MAX_LEN];       /* RFC 4279 3 */
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-    unsigned char _pms_rsa_psk[52 + MBEDTLS_PSK_MAX_LEN];      /* RFC 4279 4 */
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-    unsigned char _pms_ecdhe_psk[4 + MBEDTLS_ECP_MAX_BYTES
-                                   + MBEDTLS_PSK_MAX_LEN];     /* RFC 5489 2 */
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    unsigned char _pms_ecjpake[32];     /* Thread spec: SHA-256 output */
-#endif
-};
-
-#define MBEDTLS_PREMASTER_SIZE     sizeof( union mbedtls_ssl_premaster_secret )
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * SSL state machine
- */
-typedef enum
-{
-    MBEDTLS_SSL_HELLO_REQUEST,
-    MBEDTLS_SSL_CLIENT_HELLO,
-    MBEDTLS_SSL_SERVER_HELLO,
-    MBEDTLS_SSL_SERVER_CERTIFICATE,
-    MBEDTLS_SSL_SERVER_KEY_EXCHANGE,
-    MBEDTLS_SSL_CERTIFICATE_REQUEST,
-    MBEDTLS_SSL_SERVER_HELLO_DONE,
-    MBEDTLS_SSL_CLIENT_CERTIFICATE,
-    MBEDTLS_SSL_CLIENT_KEY_EXCHANGE,
-    MBEDTLS_SSL_CERTIFICATE_VERIFY,
-    MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC,
-    MBEDTLS_SSL_CLIENT_FINISHED,
-    MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC,
-    MBEDTLS_SSL_SERVER_FINISHED,
-    MBEDTLS_SSL_FLUSH_BUFFERS,
-    MBEDTLS_SSL_HANDSHAKE_WRAPUP,
-    MBEDTLS_SSL_HANDSHAKE_OVER,
-    MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET,
-    MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT,
-}
-mbedtls_ssl_states;
-
-/**
- * \brief          Callback type: send data on the network.
- *
- * \note           That callback may be either blocking or non-blocking.
- *
- * \param ctx      Context for the send callback (typically a file descriptor)
- * \param buf      Buffer holding the data to send
- * \param len      Length of the data to send
- *
- * \return         The callback must return the number of bytes sent if any,
- *                 or a non-zero error code.
- *                 If performing non-blocking I/O, \c MBEDTLS_ERR_SSL_WANT_WRITE
- *                 must be returned when the operation would block.
- *
- * \note           The callback is allowed to send fewer bytes than requested.
- *                 It must always return the number of bytes actually sent.
- */
-typedef int mbedtls_ssl_send_t( void *ctx,
-                                const unsigned char *buf,
-                                size_t len );
-
-/**
- * \brief          Callback type: receive data from the network.
- *
- * \note           That callback may be either blocking or non-blocking.
- *
- * \param ctx      Context for the receive callback (typically a file
- *                 descriptor)
- * \param buf      Buffer to write the received data to
- * \param len      Length of the receive buffer
- *
- * \return         The callback must return the number of bytes received,
- *                 or a non-zero error code.
- *                 If performing non-blocking I/O, \c MBEDTLS_ERR_SSL_WANT_READ
- *                 must be returned when the operation would block.
- *
- * \note           The callback may receive fewer bytes than the length of the
- *                 buffer. It must always return the number of bytes actually
- *                 received and written to the buffer.
- */
-typedef int mbedtls_ssl_recv_t( void *ctx,
-                                unsigned char *buf,
-                                size_t len );
-
-/**
- * \brief          Callback type: receive data from the network, with timeout
- *
- * \note           That callback must block until data is received, or the
- *                 timeout delay expires, or the operation is interrupted by a
- *                 signal.
- *
- * \param ctx      Context for the receive callback (typically a file descriptor)
- * \param buf      Buffer to write the received data to
- * \param len      Length of the receive buffer
- * \param timeout  Maximum nomber of millisecondes to wait for data
- *                 0 means no timeout (potentially waiting forever)
- *
- * \return         The callback must return the number of bytes received,
- *                 or a non-zero error code:
- *                 \c MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out,
- *                 \c MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal.
- *
- * \note           The callback may receive fewer bytes than the length of the
- *                 buffer. It must always return the number of bytes actually
- *                 received and written to the buffer.
- */
-typedef int mbedtls_ssl_recv_timeout_t( void *ctx,
-                                        unsigned char *buf,
-                                        size_t len,
-                                        uint32_t timeout );
-/**
- * \brief          Callback type: set a pair of timers/delays to watch
- *
- * \param ctx      Context pointer
- * \param int_ms   Intermediate delay in milliseconds
- * \param fin_ms   Final delay in milliseconds
- *                 0 cancels the current timer.
- *
- * \note           This callback must at least store the necessary information
- *                 for the associated \c mbedtls_ssl_get_timer_t callback to
- *                 return correct information.
- *
- * \note           If using a event-driven style of programming, an event must
- *                 be generated when the final delay is passed. The event must
- *                 cause a call to \c mbedtls_ssl_handshake() with the proper
- *                 SSL context to be scheduled. Care must be taken to ensure
- *                 that at most one such call happens at a time.
- *
- * \note           Only one timer at a time must be running. Calling this
- *                 function while a timer is running must cancel it. Cancelled
- *                 timers must not generate any event.
- */
-typedef void mbedtls_ssl_set_timer_t( void * ctx,
-                                      uint32_t int_ms,
-                                      uint32_t fin_ms );
-
-/**
- * \brief          Callback type: get status of timers/delays
- *
- * \param ctx      Context pointer
- *
- * \return         This callback must return:
- *                 -1 if cancelled (fin_ms == 0),
- *                  0 if none of the delays have passed,
- *                  1 if only the intermediate delay has passed,
- *                  2 if the final delay has passed.
- */
-typedef int mbedtls_ssl_get_timer_t( void * ctx );
-
-/* Defined below */
-typedef struct mbedtls_ssl_session mbedtls_ssl_session;
-typedef struct mbedtls_ssl_context mbedtls_ssl_context;
-typedef struct mbedtls_ssl_config  mbedtls_ssl_config;
-
-/* Defined in ssl_internal.h */
-typedef struct mbedtls_ssl_transform mbedtls_ssl_transform;
-typedef struct mbedtls_ssl_handshake_params mbedtls_ssl_handshake_params;
-typedef struct mbedtls_ssl_sig_hash_set_t mbedtls_ssl_sig_hash_set_t;
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-typedef struct mbedtls_ssl_key_cert mbedtls_ssl_key_cert;
-#endif
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-typedef struct mbedtls_ssl_flight_item mbedtls_ssl_flight_item;
-#endif
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/**
- * \brief           Callback type: start external signature operation.
- *
- *                  This callback is called during an SSL handshake to start
- *                  a signature decryption operation using an
- *                  external processor. The parameter \p cert contains
- *                  the public key; it is up to the callback function to
- *                  determine how to access the associated private key.
- *
- *                  This function typically sends or enqueues a request, and
- *                  does not wait for the operation to complete. This allows
- *                  the handshake step to be non-blocking.
- *
- *                  The parameters \p ssl and \p cert are guaranteed to remain
- *                  valid throughout the handshake. On the other hand, this
- *                  function must save the contents of \p hash if the value
- *                  is needed for later processing, because the \p hash buffer
- *                  is no longer valid after this function returns.
- *
- *                  This function may call mbedtls_ssl_set_async_operation_data()
- *                  to store an operation context for later retrieval
- *                  by the resume or cancel callback.
- *
- * \note            For RSA signatures, this function must produce output
- *                  that is consistent with PKCS#1 v1.5 in the same way as
- *                  mbedtls_rsa_pkcs1_sign(). Before the private key operation,
- *                  apply the padding steps described in RFC 8017, section 9.2
- *                  "EMSA-PKCS1-v1_5" as follows.
- *                  - If \p md_alg is #MBEDTLS_MD_NONE, apply the PKCS#1 v1.5
- *                    encoding, treating \p hash as the DigestInfo to be
- *                    padded. In other words, apply EMSA-PKCS1-v1_5 starting
- *                    from step 3, with `T = hash` and `tLen = hash_len`.
- *                  - If `md_alg != MBEDTLS_MD_NONE`, apply the PKCS#1 v1.5
- *                    encoding, treating \p hash as the hash to be encoded and
- *                    padded. In other words, apply EMSA-PKCS1-v1_5 starting
- *                    from step 2, with `digestAlgorithm` obtained by calling
- *                    mbedtls_oid_get_oid_by_md() on \p md_alg.
- *
- * \note            For ECDSA signatures, the output format is the DER encoding
- *                  `Ecdsa-Sig-Value` defined in
- *                  [RFC 4492 section 5.4](https://tools.ietf.org/html/rfc4492#section-5.4).
- *
- * \param ssl             The SSL connection instance. It should not be
- *                        modified other than via
- *                        mbedtls_ssl_set_async_operation_data().
- * \param cert            Certificate containing the public key.
- *                        In simple cases, this is one of the pointers passed to
- *                        mbedtls_ssl_conf_own_cert() when configuring the SSL
- *                        connection. However, if other callbacks are used, this
- *                        property may not hold. For example, if an SNI callback
- *                        is registered with mbedtls_ssl_conf_sni(), then
- *                        this callback determines what certificate is used.
- * \param md_alg          Hash algorithm.
- * \param hash            Buffer containing the hash. This buffer is
- *                        no longer valid when the function returns.
- * \param hash_len        Size of the \c hash buffer in bytes.
- *
- * \return          0 if the operation was started successfully and the SSL
- *                  stack should call the resume callback immediately.
- * \return          #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation
- *                  was started successfully and the SSL stack should return
- *                  immediately without calling the resume callback yet.
- * \return          #MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH if the external
- *                  processor does not support this key. The SSL stack will
- *                  use the private key object instead.
- * \return          Any other error indicates a fatal failure and is
- *                  propagated up the call chain. The callback should
- *                  use \c MBEDTLS_ERR_PK_xxx error codes, and <b>must not</b>
- *                  use \c MBEDTLS_ERR_SSL_xxx error codes except as
- *                  directed in the documentation of this callback.
- */
-typedef int mbedtls_ssl_async_sign_t( mbedtls_ssl_context *ssl,
-                                      mbedtls_x509_crt *cert,
-                                      mbedtls_md_type_t md_alg,
-                                      const unsigned char *hash,
-                                      size_t hash_len );
-
-/**
- * \brief           Callback type: start external decryption operation.
- *
- *                  This callback is called during an SSL handshake to start
- *                  an RSA decryption operation using an
- *                  external processor. The parameter \p cert contains
- *                  the public key; it is up to the callback function to
- *                  determine how to access the associated private key.
- *
- *                  This function typically sends or enqueues a request, and
- *                  does not wait for the operation to complete. This allows
- *                  the handshake step to be non-blocking.
- *
- *                  The parameters \p ssl and \p cert are guaranteed to remain
- *                  valid throughout the handshake. On the other hand, this
- *                  function must save the contents of \p input if the value
- *                  is needed for later processing, because the \p input buffer
- *                  is no longer valid after this function returns.
- *
- *                  This function may call mbedtls_ssl_set_async_operation_data()
- *                  to store an operation context for later retrieval
- *                  by the resume or cancel callback.
- *
- * \warning         RSA decryption as used in TLS is subject to a potential
- *                  timing side channel attack first discovered by Bleichenbacher
- *                  in 1998. This attack can be remotely exploitable
- *                  in practice. To avoid this attack, you must ensure that
- *                  if the callback performs an RSA decryption, the time it
- *                  takes to execute and return the result does not depend
- *                  on whether the RSA decryption succeeded or reported
- *                  invalid padding.
- *
- * \param ssl             The SSL connection instance. It should not be
- *                        modified other than via
- *                        mbedtls_ssl_set_async_operation_data().
- * \param cert            Certificate containing the public key.
- *                        In simple cases, this is one of the pointers passed to
- *                        mbedtls_ssl_conf_own_cert() when configuring the SSL
- *                        connection. However, if other callbacks are used, this
- *                        property may not hold. For example, if an SNI callback
- *                        is registered with mbedtls_ssl_conf_sni(), then
- *                        this callback determines what certificate is used.
- * \param input           Buffer containing the input ciphertext. This buffer
- *                        is no longer valid when the function returns.
- * \param input_len       Size of the \p input buffer in bytes.
- *
- * \return          0 if the operation was started successfully and the SSL
- *                  stack should call the resume callback immediately.
- * \return          #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation
- *                  was started successfully and the SSL stack should return
- *                  immediately without calling the resume callback yet.
- * \return          #MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH if the external
- *                  processor does not support this key. The SSL stack will
- *                  use the private key object instead.
- * \return          Any other error indicates a fatal failure and is
- *                  propagated up the call chain. The callback should
- *                  use \c MBEDTLS_ERR_PK_xxx error codes, and <b>must not</b>
- *                  use \c MBEDTLS_ERR_SSL_xxx error codes except as
- *                  directed in the documentation of this callback.
- */
-typedef int mbedtls_ssl_async_decrypt_t( mbedtls_ssl_context *ssl,
-                                         mbedtls_x509_crt *cert,
-                                         const unsigned char *input,
-                                         size_t input_len );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-/**
- * \brief           Callback type: resume external operation.
- *
- *                  This callback is called during an SSL handshake to resume
- *                  an external operation started by the
- *                  ::mbedtls_ssl_async_sign_t or
- *                  ::mbedtls_ssl_async_decrypt_t callback.
- *
- *                  This function typically checks the status of a pending
- *                  request or causes the request queue to make progress, and
- *                  does not wait for the operation to complete. This allows
- *                  the handshake step to be non-blocking.
- *
- *                  This function may call mbedtls_ssl_get_async_operation_data()
- *                  to retrieve an operation context set by the start callback.
- *                  It may call mbedtls_ssl_set_async_operation_data() to modify
- *                  this context.
- *
- *                  Note that when this function returns a status other than
- *                  #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, it must free any
- *                  resources associated with the operation.
- *
- * \param ssl             The SSL connection instance. It should not be
- *                        modified other than via
- *                        mbedtls_ssl_set_async_operation_data().
- * \param output          Buffer containing the output (signature or decrypted
- *                        data) on success.
- * \param output_len      On success, number of bytes written to \p output.
- * \param output_size     Size of the \p output buffer in bytes.
- *
- * \return          0 if output of the operation is available in the
- *                  \p output buffer.
- * \return          #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation
- *                  is still in progress. Subsequent requests for progress
- *                  on the SSL connection will call the resume callback
- *                  again.
- * \return          Any other error means that the operation is aborted.
- *                  The SSL handshake is aborted. The callback should
- *                  use \c MBEDTLS_ERR_PK_xxx error codes, and <b>must not</b>
- *                  use \c MBEDTLS_ERR_SSL_xxx error codes except as
- *                  directed in the documentation of this callback.
- */
-typedef int mbedtls_ssl_async_resume_t( mbedtls_ssl_context *ssl,
-                                        unsigned char *output,
-                                        size_t *output_len,
-                                        size_t output_size );
-
-/**
- * \brief           Callback type: cancel external operation.
- *
- *                  This callback is called if an SSL connection is closed
- *                  while an asynchronous operation is in progress. Note that
- *                  this callback is not called if the
- *                  ::mbedtls_ssl_async_resume_t callback has run and has
- *                  returned a value other than
- *                  #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, since in that case
- *                  the asynchronous operation has already completed.
- *
- *                  This function may call mbedtls_ssl_get_async_operation_data()
- *                  to retrieve an operation context set by the start callback.
- *
- * \param ssl             The SSL connection instance. It should not be
- *                        modified.
- */
-typedef void mbedtls_ssl_async_cancel_t( mbedtls_ssl_context *ssl );
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED) &&        \
-    !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-#define MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN  48
-#if defined(MBEDTLS_SHA256_C)
-#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA256
-#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN  32
-#elif defined(MBEDTLS_SHA512_C)
-#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA384
-#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN  48
-#elif defined(MBEDTLS_SHA1_C)
-#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE MBEDTLS_MD_SHA1
-#define MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN  20
-#else
-/* This is already checked in check_config.h, but be sure. */
-#error "Bad configuration - need SHA-1, SHA-256 or SHA-512 enabled to compute digest of peer CRT."
-#endif
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED &&
-          !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-/*
- * This structure is used for storing current session data.
- */
-struct mbedtls_ssl_session
-{
-#if defined(MBEDTLS_HAVE_TIME)
-    mbedtls_time_t start;       /*!< starting time      */
-#endif
-    int ciphersuite;            /*!< chosen ciphersuite */
-    int compression;            /*!< chosen compression */
-    size_t id_len;              /*!< session id length  */
-    unsigned char id[32];       /*!< session identifier */
-    unsigned char master[48];   /*!< the master secret  */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    mbedtls_x509_crt *peer_cert;       /*!< peer X.509 cert chain */
-#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    /*! The digest of the peer's end-CRT. This must be kept to detect CRT
-     *  changes during renegotiation, mitigating the triple handshake attack. */
-    unsigned char *peer_cert_digest;
-    size_t peer_cert_digest_len;
-    mbedtls_md_type_t peer_cert_digest_type;
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-    uint32_t verify_result;          /*!<  verification result     */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
-    unsigned char *ticket;      /*!< RFC 5077 session ticket */
-    size_t ticket_len;          /*!< session ticket length   */
-    uint32_t ticket_lifetime;   /*!< ticket lifetime hint    */
-#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    unsigned char mfl_code;     /*!< MaxFragmentLength negotiated by peer */
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    int trunc_hmac;             /*!< flag for truncated hmac activation   */
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    int encrypt_then_mac;       /*!< flag for EtM activation                */
-#endif
-};
-
-/**
- * SSL/TLS configuration to be shared between mbedtls_ssl_context structures.
- */
-struct mbedtls_ssl_config
-{
-    /* Group items by size (largest first) to minimize padding overhead */
-
-    /*
-     * Pointers
-     */
-
-    const int *ciphersuite_list[4]; /*!< allowed ciphersuites per version   */
-
-    /** Callback for printing debug output                                  */
-    void (*f_dbg)(void *, int, const char *, int, const char *);
-    void *p_dbg;                    /*!< context for the debug function     */
-
-    /** Callback for getting (pseudo-)random numbers                        */
-    int  (*f_rng)(void *, unsigned char *, size_t);
-    void *p_rng;                    /*!< context for the RNG function       */
-
-    /** Callback to retrieve a session from the cache                       */
-    int (*f_get_cache)(void *, mbedtls_ssl_session *);
-    /** Callback to store a session into the cache                          */
-    int (*f_set_cache)(void *, const mbedtls_ssl_session *);
-    void *p_cache;                  /*!< context for cache callbacks        */
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    /** Callback for setting cert according to SNI extension                */
-    int (*f_sni)(void *, mbedtls_ssl_context *, const unsigned char *, size_t);
-    void *p_sni;                    /*!< context for SNI callback           */
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    /** Callback to customize X.509 certificate chain verification          */
-    int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *);
-    void *p_vrfy;                   /*!< context for X.509 verify calllback */
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    /** Callback to retrieve PSK key from identity                          */
-    int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, size_t);
-    void *p_psk;                    /*!< context for PSK callback           */
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
-    /** Callback to create & write a cookie for ClientHello veirifcation    */
-    int (*f_cookie_write)( void *, unsigned char **, unsigned char *,
-                           const unsigned char *, size_t );
-    /** Callback to verify validity of a ClientHello cookie                 */
-    int (*f_cookie_check)( void *, const unsigned char *, size_t,
-                           const unsigned char *, size_t );
-    void *p_cookie;                 /*!< context for the cookie callbacks   */
-#endif
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_SRV_C)
-    /** Callback to create & write a session ticket                         */
-    int (*f_ticket_write)( void *, const mbedtls_ssl_session *,
-            unsigned char *, const unsigned char *, size_t *, uint32_t * );
-    /** Callback to parse a session ticket into a session structure         */
-    int (*f_ticket_parse)( void *, mbedtls_ssl_session *, unsigned char *, size_t);
-    void *p_ticket;                 /*!< context for the ticket callbacks   */
-#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_SRV_C */
-
-#if defined(MBEDTLS_SSL_EXPORT_KEYS)
-    /** Callback to export key block and master secret                      */
-    int (*f_export_keys)( void *, const unsigned char *,
-            const unsigned char *, size_t, size_t, size_t );
-    void *p_export_keys;            /*!< context for key export callback    */
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    const mbedtls_x509_crt_profile *cert_profile; /*!< verification profile */
-    mbedtls_ssl_key_cert *key_cert; /*!< own certificate/key pair(s)        */
-    mbedtls_x509_crt *ca_chain;     /*!< trusted CAs                        */
-    mbedtls_x509_crl *ca_crl;       /*!< trusted CAs CRLs                   */
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    mbedtls_x509_crt_ca_cb_t f_ca_cb;
-    void *p_ca_cb;
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_ssl_async_sign_t *f_async_sign_start; /*!< start asynchronous signature operation */
-    mbedtls_ssl_async_decrypt_t *f_async_decrypt_start; /*!< start asynchronous decryption operation */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-    mbedtls_ssl_async_resume_t *f_async_resume; /*!< resume asynchronous operation */
-    mbedtls_ssl_async_cancel_t *f_async_cancel; /*!< cancel asynchronous operation */
-    void *p_async_config_data; /*!< Configuration data set by mbedtls_ssl_conf_async_private_cb(). */
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-    const int *sig_hashes;          /*!< allowed signature hashes           */
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-    const mbedtls_ecp_group_id *curve_list; /*!< allowed curves             */
-#endif
-
-#if defined(MBEDTLS_DHM_C)
-    mbedtls_mpi dhm_P;              /*!< prime modulus for DHM              */
-    mbedtls_mpi dhm_G;              /*!< generator for DHM                  */
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_key_handle_t psk_opaque; /*!< PSA key slot holding opaque PSK.
-                                  *   This field should only be set via
-                                  *   mbedtls_ssl_conf_psk_opaque().
-                                  *   If either no PSK or a raw PSK have
-                                  *   been configured, this has value \c 0. */
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-    unsigned char *psk;      /*!< The raw pre-shared key. This field should
-                              *   only be set via mbedtls_ssl_conf_psk().
-                              *   If either no PSK or an opaque PSK
-                              *   have been configured, this has value NULL. */
-    size_t         psk_len;  /*!< The length of the raw pre-shared key.
-                              *   This field should only be set via
-                              *   mbedtls_ssl_conf_psk().
-                              *   Its value is non-zero if and only if
-                              *   \c psk is not \c NULL. */
-
-    unsigned char *psk_identity;    /*!< The PSK identity for PSK negotiation.
-                                     *   This field should only be set via
-                                     *   mbedtls_ssl_conf_psk().
-                                     *   This is set if and only if either
-                                     *   \c psk or \c psk_opaque are set. */
-    size_t         psk_identity_len;/*!< The length of PSK identity.
-                                     *   This field should only be set via
-                                     *   mbedtls_ssl_conf_psk().
-                                     *   Its value is non-zero if and only if
-                                     *   \c psk is not \c NULL or \c psk_opaque
-                                     *   is not \c 0. */
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-#if defined(MBEDTLS_SSL_ALPN)
-    const char **alpn_list;         /*!< ordered list of protocols          */
-#endif
-
-    /*
-     * Numerical settings (int then char)
-     */
-
-    uint32_t read_timeout;          /*!< timeout for mbedtls_ssl_read (ms)  */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    uint32_t hs_timeout_min;        /*!< initial value of the handshake
-                                         retransmission timeout (ms)        */
-    uint32_t hs_timeout_max;        /*!< maximum value of the handshake
-                                         retransmission timeout (ms)        */
-#endif
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    int renego_max_records;         /*!< grace period for renegotiation     */
-    unsigned char renego_period[8]; /*!< value of the record counters
-                                         that triggers renegotiation        */
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-    unsigned int badmac_limit;      /*!< limit of records with a bad MAC    */
-#endif
-
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C)
-    unsigned int dhm_min_bitlen;    /*!< min. bit length of the DHM prime   */
-#endif
-
-    unsigned char max_major_ver;    /*!< max. major version used            */
-    unsigned char max_minor_ver;    /*!< max. minor version used            */
-    unsigned char min_major_ver;    /*!< min. major version used            */
-    unsigned char min_minor_ver;    /*!< min. minor version used            */
-
-    /*
-     * Flags (bitfields)
-     */
-
-    unsigned int endpoint : 1;      /*!< 0: client, 1: server               */
-    unsigned int transport : 1;     /*!< stream (TLS) or datagram (DTLS)    */
-    unsigned int authmode : 2;      /*!< MBEDTLS_SSL_VERIFY_XXX             */
-    /* needed even with renego disabled for LEGACY_BREAK_HANDSHAKE          */
-    unsigned int allow_legacy_renegotiation : 2 ; /*!< MBEDTLS_LEGACY_XXX   */
-#if defined(MBEDTLS_ARC4_C)
-    unsigned int arc4_disabled : 1; /*!< blacklist RC4 ciphersuites?        */
-#endif
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    unsigned int mfl_code : 3;      /*!< desired fragment length            */
-#endif
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    unsigned int encrypt_then_mac : 1 ; /*!< negotiate encrypt-then-mac?    */
-#endif
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    unsigned int extended_ms : 1;   /*!< negotiate extended master secret?  */
-#endif
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    unsigned int anti_replay : 1;   /*!< detect and prevent replay?         */
-#endif
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-    unsigned int cbc_record_splitting : 1;  /*!< do cbc record splitting    */
-#endif
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    unsigned int disable_renegotiation : 1; /*!< disable renegotiation?     */
-#endif
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    unsigned int trunc_hmac : 1;    /*!< negotiate truncated hmac?          */
-#endif
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    unsigned int session_tickets : 1;   /*!< use session tickets?           */
-#endif
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C)
-    unsigned int fallback : 1;      /*!< is this a fallback?                */
-#endif
-#if defined(MBEDTLS_SSL_SRV_C)
-    unsigned int cert_req_ca_list : 1;  /*!< enable sending CA list in
-                                          Certificate Request messages?     */
-#endif
-};
-
-
-struct mbedtls_ssl_context
-{
-    const mbedtls_ssl_config *conf; /*!< configuration information          */
-
-    /*
-     * Miscellaneous
-     */
-    int state;                  /*!< SSL handshake: current state     */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    int renego_status;          /*!< Initial, in progress, pending?   */
-    int renego_records_seen;    /*!< Records since renego request, or with DTLS,
-                                  number of retransmissions of request if
-                                  renego_max_records is < 0           */
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-    int major_ver;              /*!< equal to  MBEDTLS_SSL_MAJOR_VERSION_3    */
-    int minor_ver;              /*!< either 0 (SSL3) or 1 (TLS1.0)    */
-
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-    unsigned badmac_seen;       /*!< records with a bad MAC received    */
-#endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    /** Callback to customize X.509 certificate chain verification          */
-    int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *);
-    void *p_vrfy;                   /*!< context for X.509 verify callback */
-#endif
-
-    mbedtls_ssl_send_t *f_send; /*!< Callback for network send */
-    mbedtls_ssl_recv_t *f_recv; /*!< Callback for network receive */
-    mbedtls_ssl_recv_timeout_t *f_recv_timeout;
-                                /*!< Callback for network receive with timeout */
-
-    void *p_bio;                /*!< context for I/O operations   */
-
-    /*
-     * Session layer
-     */
-    mbedtls_ssl_session *session_in;            /*!<  current session data (in)   */
-    mbedtls_ssl_session *session_out;           /*!<  current session data (out)  */
-    mbedtls_ssl_session *session;               /*!<  negotiated session data     */
-    mbedtls_ssl_session *session_negotiate;     /*!<  session data in negotiation */
-
-    mbedtls_ssl_handshake_params *handshake;    /*!<  params required only during
-                                              the handshake process        */
-
-    /*
-     * Record layer transformations
-     */
-    mbedtls_ssl_transform *transform_in;        /*!<  current transform params (in)   */
-    mbedtls_ssl_transform *transform_out;       /*!<  current transform params (in)   */
-    mbedtls_ssl_transform *transform;           /*!<  negotiated transform params     */
-    mbedtls_ssl_transform *transform_negotiate; /*!<  transform params in negotiation */
-
-    /*
-     * Timers
-     */
-    void *p_timer;              /*!< context for the timer callbacks */
-
-    mbedtls_ssl_set_timer_t *f_set_timer;       /*!< set timer callback */
-    mbedtls_ssl_get_timer_t *f_get_timer;       /*!< get timer callback */
-
-    /*
-     * Record layer (incoming data)
-     */
-    unsigned char *in_buf;      /*!< input buffer                     */
-    unsigned char *in_ctr;      /*!< 64-bit incoming message counter
-                                     TLS: maintained by us
-                                     DTLS: read from peer             */
-    unsigned char *in_hdr;      /*!< start of record header           */
-    unsigned char *in_len;      /*!< two-bytes message length field   */
-    unsigned char *in_iv;       /*!< ivlen-byte IV                    */
-    unsigned char *in_msg;      /*!< message contents (in_iv+ivlen)   */
-    unsigned char *in_offt;     /*!< read offset in application data  */
-
-    int in_msgtype;             /*!< record header: message type      */
-    size_t in_msglen;           /*!< record header: message length    */
-    size_t in_left;             /*!< amount of data read so far       */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    uint16_t in_epoch;          /*!< DTLS epoch for incoming records  */
-    size_t next_record_offset;  /*!< offset of the next record in datagram
-                                     (equal to in_left if none)       */
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    uint64_t in_window_top;     /*!< last validated record seq_num    */
-    uint64_t in_window;         /*!< bitmask for replay detection     */
-#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
-
-    size_t in_hslen;            /*!< current handshake message length,
-                                     including the handshake header   */
-    int nb_zero;                /*!< # of 0-length encrypted messages */
-
-    int keep_current_message;   /*!< drop or reuse current message
-                                     on next call to record layer? */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    uint8_t disable_datagram_packing;  /*!< Disable packing multiple records
-                                        *   within a single datagram.  */
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    /*
-     * Record layer (outgoing data)
-     */
-    unsigned char *out_buf;     /*!< output buffer                    */
-    unsigned char *out_ctr;     /*!< 64-bit outgoing message counter  */
-    unsigned char *out_hdr;     /*!< start of record header           */
-    unsigned char *out_len;     /*!< two-bytes message length field   */
-    unsigned char *out_iv;      /*!< ivlen-byte IV                    */
-    unsigned char *out_msg;     /*!< message contents (out_iv+ivlen)  */
-
-    int out_msgtype;            /*!< record header: message type      */
-    size_t out_msglen;          /*!< record header: message length    */
-    size_t out_left;            /*!< amount of data not yet written   */
-
-    unsigned char cur_out_ctr[8]; /*!<  Outgoing record sequence  number. */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    uint16_t mtu;               /*!< path mtu, used to fragment outgoing messages */
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    unsigned char *compress_buf;        /*!<  zlib data buffer        */
-#endif /* MBEDTLS_ZLIB_SUPPORT */
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-    signed char split_done;     /*!< current record already splitted? */
-#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */
-
-    /*
-     * PKI layer
-     */
-    int client_auth;                    /*!<  flag for client auth.   */
-
-    /*
-     * User settings
-     */
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    char *hostname;             /*!< expected peer CN for verification
-                                     (and SNI if available)                 */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_ALPN)
-    const char *alpn_chosen;    /*!<  negotiated protocol                   */
-#endif /* MBEDTLS_SSL_ALPN */
-
-    /*
-     * Information for DTLS hello verify
-     */
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
-    unsigned char  *cli_id;         /*!<  transport-level ID of the client  */
-    size_t          cli_id_len;     /*!<  length of cli_id                  */
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */
-
-    /*
-     * Secure renegotiation
-     */
-    /* needed to know when to send extension on server */
-    int secure_renegotiation;           /*!<  does peer support legacy or
-                                              secure renegotiation           */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    size_t verify_data_len;             /*!<  length of verify data stored   */
-    char own_verify_data[MBEDTLS_SSL_VERIFY_DATA_MAX_LEN]; /*!<  previous handshake verify data */
-    char peer_verify_data[MBEDTLS_SSL_VERIFY_DATA_MAX_LEN]; /*!<  previous handshake verify data */
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-};
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-
-#define MBEDTLS_SSL_CHANNEL_OUTBOUND    0
-#define MBEDTLS_SSL_CHANNEL_INBOUND     1
-
-extern int (*mbedtls_ssl_hw_record_init)(mbedtls_ssl_context *ssl,
-                const unsigned char *key_enc, const unsigned char *key_dec,
-                size_t keylen,
-                const unsigned char *iv_enc,  const unsigned char *iv_dec,
-                size_t ivlen,
-                const unsigned char *mac_enc, const unsigned char *mac_dec,
-                size_t maclen);
-extern int (*mbedtls_ssl_hw_record_activate)(mbedtls_ssl_context *ssl, int direction);
-extern int (*mbedtls_ssl_hw_record_reset)(mbedtls_ssl_context *ssl);
-extern int (*mbedtls_ssl_hw_record_write)(mbedtls_ssl_context *ssl);
-extern int (*mbedtls_ssl_hw_record_read)(mbedtls_ssl_context *ssl);
-extern int (*mbedtls_ssl_hw_record_finish)(mbedtls_ssl_context *ssl);
-#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
-
-/**
- * \brief               Return the name of the ciphersuite associated with the
- *                      given ID
- *
- * \param ciphersuite_id SSL ciphersuite ID
- *
- * \return              a string containing the ciphersuite name
- */
-const char *mbedtls_ssl_get_ciphersuite_name( const int ciphersuite_id );
-
-/**
- * \brief               Return the ID of the ciphersuite associated with the
- *                      given name
- *
- * \param ciphersuite_name SSL ciphersuite name
- *
- * \return              the ID with the ciphersuite or 0 if not found
- */
-int mbedtls_ssl_get_ciphersuite_id( const char *ciphersuite_name );
-
-/**
- * \brief          Initialize an SSL context
- *                 Just makes the context ready for mbedtls_ssl_setup() or
- *                 mbedtls_ssl_free()
- *
- * \param ssl      SSL context
- */
-void mbedtls_ssl_init( mbedtls_ssl_context *ssl );
-
-/**
- * \brief          Set up an SSL context for use
- *
- * \note           No copy of the configuration context is made, it can be
- *                 shared by many mbedtls_ssl_context structures.
- *
- * \warning        The conf structure will be accessed during the session.
- *                 It must not be modified or freed as long as the session
- *                 is active.
- *
- * \warning        This function must be called exactly once per context.
- *                 Calling mbedtls_ssl_setup again is not supported, even
- *                 if no session is active.
- *
- * \param ssl      SSL context
- * \param conf     SSL configuration to use
- *
- * \return         0 if successful, or MBEDTLS_ERR_SSL_ALLOC_FAILED if
- *                 memory allocation failed
- */
-int mbedtls_ssl_setup( mbedtls_ssl_context *ssl,
-                       const mbedtls_ssl_config *conf );
-
-/**
- * \brief          Reset an already initialized SSL context for re-use
- *                 while retaining application-set variables, function
- *                 pointers and data.
- *
- * \param ssl      SSL context
- * \return         0 if successful, or MBEDTLS_ERR_SSL_ALLOC_FAILED,
-                   MBEDTLS_ERR_SSL_HW_ACCEL_FAILED or
- *                 MBEDTLS_ERR_SSL_COMPRESSION_FAILED
- */
-int mbedtls_ssl_session_reset( mbedtls_ssl_context *ssl );
-
-/**
- * \brief          Set the current endpoint type
- *
- * \param conf     SSL configuration
- * \param endpoint must be MBEDTLS_SSL_IS_CLIENT or MBEDTLS_SSL_IS_SERVER
- */
-void mbedtls_ssl_conf_endpoint( mbedtls_ssl_config *conf, int endpoint );
-
-/**
- * \brief           Set the transport type (TLS or DTLS).
- *                  Default: TLS
- *
- * \note            For DTLS, you must either provide a recv callback that
- *                  doesn't block, or one that handles timeouts, see
- *                  \c mbedtls_ssl_set_bio(). You also need to provide timer
- *                  callbacks with \c mbedtls_ssl_set_timer_cb().
- *
- * \param conf      SSL configuration
- * \param transport transport type:
- *                  MBEDTLS_SSL_TRANSPORT_STREAM for TLS,
- *                  MBEDTLS_SSL_TRANSPORT_DATAGRAM for DTLS.
- */
-void mbedtls_ssl_conf_transport( mbedtls_ssl_config *conf, int transport );
-
-/**
- * \brief          Set the certificate verification mode
- *                 Default: NONE on server, REQUIRED on client
- *
- * \param conf     SSL configuration
- * \param authmode can be:
- *
- *  MBEDTLS_SSL_VERIFY_NONE:      peer certificate is not checked
- *                        (default on server)
- *                        (insecure on client)
- *
- *  MBEDTLS_SSL_VERIFY_OPTIONAL:  peer certificate is checked, however the
- *                        handshake continues even if verification failed;
- *                        mbedtls_ssl_get_verify_result() can be called after the
- *                        handshake is complete.
- *
- *  MBEDTLS_SSL_VERIFY_REQUIRED:  peer *must* present a valid certificate,
- *                        handshake is aborted if verification failed.
- *                        (default on client)
- *
- * \note On client, MBEDTLS_SSL_VERIFY_REQUIRED is the recommended mode.
- * With MBEDTLS_SSL_VERIFY_OPTIONAL, the user needs to call mbedtls_ssl_get_verify_result() at
- * the right time(s), which may not be obvious, while REQUIRED always perform
- * the verification as soon as possible. For example, REQUIRED was protecting
- * against the "triple handshake" attack even before it was found.
- */
-void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *conf, int authmode );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/**
- * \brief          Set the verification callback (Optional).
- *
- *                 If set, the provided verify callback is called for each
- *                 certificate in the peer's CRT chain, including the trusted
- *                 root. For more information, please see the documentation of
- *                 \c mbedtls_x509_crt_verify().
- *
- * \note           For per context callbacks and contexts, please use
- *                 mbedtls_ssl_set_verify() instead.
- *
- * \param conf     The SSL configuration to use.
- * \param f_vrfy   The verification callback to use during CRT verification.
- * \param p_vrfy   The opaque context to be passed to the callback.
- */
-void mbedtls_ssl_conf_verify( mbedtls_ssl_config *conf,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-/**
- * \brief          Set the random number generator callback
- *
- * \param conf     SSL configuration
- * \param f_rng    RNG function
- * \param p_rng    RNG parameter
- */
-void mbedtls_ssl_conf_rng( mbedtls_ssl_config *conf,
-                  int (*f_rng)(void *, unsigned char *, size_t),
-                  void *p_rng );
-
-/**
- * \brief          Set the debug callback
- *
- *                 The callback has the following argument:
- *                 void *           opaque context for the callback
- *                 int              debug level
- *                 const char *     file name
- *                 int              line number
- *                 const char *     message
- *
- * \param conf     SSL configuration
- * \param f_dbg    debug function
- * \param p_dbg    debug parameter
- */
-void mbedtls_ssl_conf_dbg( mbedtls_ssl_config *conf,
-                  void (*f_dbg)(void *, int, const char *, int, const char *),
-                  void  *p_dbg );
-
-/**
- * \brief          Set the underlying BIO callbacks for write, read and
- *                 read-with-timeout.
- *
- * \param ssl      SSL context
- * \param p_bio    parameter (context) shared by BIO callbacks
- * \param f_send   write callback
- * \param f_recv   read callback
- * \param f_recv_timeout blocking read callback with timeout.
- *
- * \note           One of f_recv or f_recv_timeout can be NULL, in which case
- *                 the other is used. If both are non-NULL, f_recv_timeout is
- *                 used and f_recv is ignored (as if it were NULL).
- *
- * \note           The two most common use cases are:
- *                 - non-blocking I/O, f_recv != NULL, f_recv_timeout == NULL
- *                 - blocking I/O, f_recv == NULL, f_recv_timout != NULL
- *
- * \note           For DTLS, you need to provide either a non-NULL
- *                 f_recv_timeout callback, or a f_recv that doesn't block.
- *
- * \note           See the documentations of \c mbedtls_ssl_sent_t,
- *                 \c mbedtls_ssl_recv_t and \c mbedtls_ssl_recv_timeout_t for
- *                 the conventions those callbacks must follow.
- *
- * \note           On some platforms, net_sockets.c provides
- *                 \c mbedtls_net_send(), \c mbedtls_net_recv() and
- *                 \c mbedtls_net_recv_timeout() that are suitable to be used
- *                 here.
- */
-void mbedtls_ssl_set_bio( mbedtls_ssl_context *ssl,
-                          void *p_bio,
-                          mbedtls_ssl_send_t *f_send,
-                          mbedtls_ssl_recv_t *f_recv,
-                          mbedtls_ssl_recv_timeout_t *f_recv_timeout );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-/**
- * \brief          Set the Maximum Tranport Unit (MTU).
- *                 Special value: 0 means unset (no limit).
- *                 This represents the maximum size of a datagram payload
- *                 handled by the transport layer (usually UDP) as determined
- *                 by the network link and stack. In practice, this controls
- *                 the maximum size datagram the DTLS layer will pass to the
- *                 \c f_send() callback set using \c mbedtls_ssl_set_bio().
- *
- * \note           The limit on datagram size is converted to a limit on
- *                 record payload by subtracting the current overhead of
- *                 encapsulation and encryption/authentication if any.
- *
- * \note           This can be called at any point during the connection, for
- *                 example when a Path Maximum Transfer Unit (PMTU)
- *                 estimate becomes available from other sources,
- *                 such as lower (or higher) protocol layers.
- *
- * \note           This setting only controls the size of the packets we send,
- *                 and does not restrict the size of the datagrams we're
- *                 willing to receive. Client-side, you can request the
- *                 server to use smaller records with \c
- *                 mbedtls_ssl_conf_max_frag_len().
- *
- * \note           If both a MTU and a maximum fragment length have been
- *                 configured (or negotiated with the peer), the resulting
- *                 lower limit on record payload (see first note) is used.
- *
- * \note           This can only be used to decrease the maximum size
- *                 of datagrams (hence records, see first note) sent. It
- *                 cannot be used to increase the maximum size of records over
- *                 the limit set by #MBEDTLS_SSL_OUT_CONTENT_LEN.
- *
- * \note           Values lower than the current record layer expansion will
- *                 result in an error when trying to send data.
- *
- * \note           Using record compression together with a non-zero MTU value
- *                 will result in an error when trying to send data.
- *
- * \param ssl      SSL context
- * \param mtu      Value of the path MTU in bytes
- */
-void mbedtls_ssl_set_mtu( mbedtls_ssl_context *ssl, uint16_t mtu );
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/**
- * \brief          Set a connection-specific verification callback (optional).
- *
- *                 If set, the provided verify callback is called for each
- *                 certificate in the peer's CRT chain, including the trusted
- *                 root. For more information, please see the documentation of
- *                 \c mbedtls_x509_crt_verify().
- *
- * \note           This call is analogous to mbedtls_ssl_conf_verify() but
- *                 binds the verification callback and context to an SSL context
- *                 as opposed to an SSL configuration.
- *                 If mbedtls_ssl_conf_verify() and mbedtls_ssl_set_verify()
- *                 are both used, mbedtls_ssl_set_verify() takes precedence.
- *
- * \param ssl      The SSL context to use.
- * \param f_vrfy   The verification callback to use during CRT verification.
- * \param p_vrfy   The opaque context to be passed to the callback.
- */
-void mbedtls_ssl_set_verify( mbedtls_ssl_context *ssl,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-/**
- * \brief          Set the timeout period for mbedtls_ssl_read()
- *                 (Default: no timeout.)
- *
- * \param conf     SSL configuration context
- * \param timeout  Timeout value in milliseconds.
- *                 Use 0 for no timeout (default).
- *
- * \note           With blocking I/O, this will only work if a non-NULL
- *                 \c f_recv_timeout was set with \c mbedtls_ssl_set_bio().
- *                 With non-blocking I/O, this will only work if timer
- *                 callbacks were set with \c mbedtls_ssl_set_timer_cb().
- *
- * \note           With non-blocking I/O, you may also skip this function
- *                 altogether and handle timeouts at the application layer.
- */
-void mbedtls_ssl_conf_read_timeout( mbedtls_ssl_config *conf, uint32_t timeout );
-
-/**
- * \brief          Set the timer callbacks (Mandatory for DTLS.)
- *
- * \param ssl      SSL context
- * \param p_timer  parameter (context) shared by timer callbacks
- * \param f_set_timer   set timer callback
- * \param f_get_timer   get timer callback. Must return:
- *
- * \note           See the documentation of \c mbedtls_ssl_set_timer_t and
- *                 \c mbedtls_ssl_get_timer_t for the conventions this pair of
- *                 callbacks must follow.
- *
- * \note           On some platforms, timing.c provides
- *                 \c mbedtls_timing_set_delay() and
- *                 \c mbedtls_timing_get_delay() that are suitable for using
- *                 here, except if using an event-driven style.
- *
- * \note           See also the "DTLS tutorial" article in our knowledge base.
- *                 https://tls.mbed.org/kb/how-to/dtls-tutorial
- */
-void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *ssl,
-                               void *p_timer,
-                               mbedtls_ssl_set_timer_t *f_set_timer,
-                               mbedtls_ssl_get_timer_t *f_get_timer );
-
-/**
- * \brief           Callback type: generate and write session ticket
- *
- * \note            This describes what a callback implementation should do.
- *                  This callback should generate an encrypted and
- *                  authenticated ticket for the session and write it to the
- *                  output buffer. Here, ticket means the opaque ticket part
- *                  of the NewSessionTicket structure of RFC 5077.
- *
- * \param p_ticket  Context for the callback
- * \param session   SSL session to be written in the ticket
- * \param start     Start of the output buffer
- * \param end       End of the output buffer
- * \param tlen      On exit, holds the length written
- * \param lifetime  On exit, holds the lifetime of the ticket in seconds
- *
- * \return          0 if successful, or
- *                  a specific MBEDTLS_ERR_XXX code.
- */
-typedef int mbedtls_ssl_ticket_write_t( void *p_ticket,
-                                        const mbedtls_ssl_session *session,
-                                        unsigned char *start,
-                                        const unsigned char *end,
-                                        size_t *tlen,
-                                        uint32_t *lifetime );
-
-#if defined(MBEDTLS_SSL_EXPORT_KEYS)
-/**
- * \brief           Callback type: Export key block and master secret
- *
- * \note            This is required for certain uses of TLS, e.g. EAP-TLS
- *                  (RFC 5216) and Thread. The key pointers are ephemeral and
- *                  therefore must not be stored. The master secret and keys
- *                  should not be used directly except as an input to a key
- *                  derivation function.
- *
- * \param p_expkey  Context for the callback
- * \param ms        Pointer to master secret (fixed length: 48 bytes)
- * \param kb        Pointer to key block, see RFC 5246 section 6.3
- *                  (variable length: 2 * maclen + 2 * keylen + 2 * ivlen).
- * \param maclen    MAC length
- * \param keylen    Key length
- * \param ivlen     IV length
- *
- * \return          0 if successful, or
- *                  a specific MBEDTLS_ERR_XXX code.
- */
-typedef int mbedtls_ssl_export_keys_t( void *p_expkey,
-                                const unsigned char *ms,
-                                const unsigned char *kb,
-                                size_t maclen,
-                                size_t keylen,
-                                size_t ivlen );
-#endif /* MBEDTLS_SSL_EXPORT_KEYS */
-
-/**
- * \brief           Callback type: parse and load session ticket
- *
- * \note            This describes what a callback implementation should do.
- *                  This callback should parse a session ticket as generated
- *                  by the corresponding mbedtls_ssl_ticket_write_t function,
- *                  and, if the ticket is authentic and valid, load the
- *                  session.
- *
- * \note            The implementation is allowed to modify the first len
- *                  bytes of the input buffer, eg to use it as a temporary
- *                  area for the decrypted ticket contents.
- *
- * \param p_ticket  Context for the callback
- * \param session   SSL session to be loaded
- * \param buf       Start of the buffer containing the ticket
- * \param len       Length of the ticket.
- *
- * \return          0 if successful, or
- *                  MBEDTLS_ERR_SSL_INVALID_MAC if not authentic, or
- *                  MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED if expired, or
- *                  any other non-zero code for other failures.
- */
-typedef int mbedtls_ssl_ticket_parse_t( void *p_ticket,
-                                        mbedtls_ssl_session *session,
-                                        unsigned char *buf,
-                                        size_t len );
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_SRV_C)
-/**
- * \brief           Configure SSL session ticket callbacks (server only).
- *                  (Default: none.)
- *
- * \note            On server, session tickets are enabled by providing
- *                  non-NULL callbacks.
- *
- * \note            On client, use \c mbedtls_ssl_conf_session_tickets().
- *
- * \param conf      SSL configuration context
- * \param f_ticket_write    Callback for writing a ticket
- * \param f_ticket_parse    Callback for parsing a ticket
- * \param p_ticket          Context shared by the two callbacks
- */
-void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *conf,
-        mbedtls_ssl_ticket_write_t *f_ticket_write,
-        mbedtls_ssl_ticket_parse_t *f_ticket_parse,
-        void *p_ticket );
-#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_SRV_C */
-
-#if defined(MBEDTLS_SSL_EXPORT_KEYS)
-/**
- * \brief           Configure key export callback.
- *                  (Default: none.)
- *
- * \note            See \c mbedtls_ssl_export_keys_t.
- *
- * \param conf      SSL configuration context
- * \param f_export_keys     Callback for exporting keys
- * \param p_export_keys     Context for the callback
- */
-void mbedtls_ssl_conf_export_keys_cb( mbedtls_ssl_config *conf,
-        mbedtls_ssl_export_keys_t *f_export_keys,
-        void *p_export_keys );
-#endif /* MBEDTLS_SSL_EXPORT_KEYS */
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-/**
- * \brief           Configure asynchronous private key operation callbacks.
- *
- * \param conf              SSL configuration context
- * \param f_async_sign      Callback to start a signature operation. See
- *                          the description of ::mbedtls_ssl_async_sign_t
- *                          for more information. This may be \c NULL if the
- *                          external processor does not support any signature
- *                          operation; in this case the private key object
- *                          associated with the certificate will be used.
- * \param f_async_decrypt   Callback to start a decryption operation. See
- *                          the description of ::mbedtls_ssl_async_decrypt_t
- *                          for more information. This may be \c NULL if the
- *                          external processor does not support any decryption
- *                          operation; in this case the private key object
- *                          associated with the certificate will be used.
- * \param f_async_resume    Callback to resume an asynchronous operation. See
- *                          the description of ::mbedtls_ssl_async_resume_t
- *                          for more information. This may not be \c NULL unless
- *                          \p f_async_sign and \p f_async_decrypt are both
- *                          \c NULL.
- * \param f_async_cancel    Callback to cancel an asynchronous operation. See
- *                          the description of ::mbedtls_ssl_async_cancel_t
- *                          for more information. This may be \c NULL if
- *                          no cleanup is needed.
- * \param config_data       A pointer to configuration data which can be
- *                          retrieved with
- *                          mbedtls_ssl_conf_get_async_config_data(). The
- *                          library stores this value without dereferencing it.
- */
-void mbedtls_ssl_conf_async_private_cb( mbedtls_ssl_config *conf,
-                                        mbedtls_ssl_async_sign_t *f_async_sign,
-                                        mbedtls_ssl_async_decrypt_t *f_async_decrypt,
-                                        mbedtls_ssl_async_resume_t *f_async_resume,
-                                        mbedtls_ssl_async_cancel_t *f_async_cancel,
-                                        void *config_data );
-
-/**
- * \brief           Retrieve the configuration data set by
- *                  mbedtls_ssl_conf_async_private_cb().
- *
- * \param conf      SSL configuration context
- * \return          The configuration data set by
- *                  mbedtls_ssl_conf_async_private_cb().
- */
-void *mbedtls_ssl_conf_get_async_config_data( const mbedtls_ssl_config *conf );
-
-/**
- * \brief           Retrieve the asynchronous operation user context.
- *
- * \note            This function may only be called while a handshake
- *                  is in progress.
- *
- * \param ssl       The SSL context to access.
- *
- * \return          The asynchronous operation user context that was last
- *                  set during the current handshake. If
- *                  mbedtls_ssl_set_async_operation_data() has not yet been
- *                  called during the current handshake, this function returns
- *                  \c NULL.
- */
-void *mbedtls_ssl_get_async_operation_data( const mbedtls_ssl_context *ssl );
-
-/**
- * \brief           Retrieve the asynchronous operation user context.
- *
- * \note            This function may only be called while a handshake
- *                  is in progress.
- *
- * \param ssl       The SSL context to access.
- * \param ctx       The new value of the asynchronous operation user context.
- *                  Call mbedtls_ssl_get_async_operation_data() later during the
- *                  same handshake to retrieve this value.
- */
-void mbedtls_ssl_set_async_operation_data( mbedtls_ssl_context *ssl,
-                                 void *ctx );
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-/**
- * \brief          Callback type: generate a cookie
- *
- * \param ctx      Context for the callback
- * \param p        Buffer to write to,
- *                 must be updated to point right after the cookie
- * \param end      Pointer to one past the end of the output buffer
- * \param info     Client ID info that was passed to
- *                 \c mbedtls_ssl_set_client_transport_id()
- * \param ilen     Length of info in bytes
- *
- * \return         The callback must return 0 on success,
- *                 or a negative error code.
- */
-typedef int mbedtls_ssl_cookie_write_t( void *ctx,
-                                unsigned char **p, unsigned char *end,
-                                const unsigned char *info, size_t ilen );
-
-/**
- * \brief          Callback type: verify a cookie
- *
- * \param ctx      Context for the callback
- * \param cookie   Cookie to verify
- * \param clen     Length of cookie
- * \param info     Client ID info that was passed to
- *                 \c mbedtls_ssl_set_client_transport_id()
- * \param ilen     Length of info in bytes
- *
- * \return         The callback must return 0 if cookie is valid,
- *                 or a negative error code.
- */
-typedef int mbedtls_ssl_cookie_check_t( void *ctx,
-                                const unsigned char *cookie, size_t clen,
-                                const unsigned char *info, size_t ilen );
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
-/**
- * \brief           Register callbacks for DTLS cookies
- *                  (Server only. DTLS only.)
- *
- *                  Default: dummy callbacks that fail, in order to force you to
- *                  register working callbacks (and initialize their context).
- *
- *                  To disable HelloVerifyRequest, register NULL callbacks.
- *
- * \warning         Disabling hello verification allows your server to be used
- *                  for amplification in DoS attacks against other hosts.
- *                  Only disable if you known this can't happen in your
- *                  particular environment.
- *
- * \note            See comments on \c mbedtls_ssl_handshake() about handling
- *                  the MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED that is expected
- *                  on the first handshake attempt when this is enabled.
- *
- * \note            This is also necessary to handle client reconnection from
- *                  the same port as described in RFC 6347 section 4.2.8 (only
- *                  the variant with cookies is supported currently). See
- *                  comments on \c mbedtls_ssl_read() for details.
- *
- * \param conf              SSL configuration
- * \param f_cookie_write    Cookie write callback
- * \param f_cookie_check    Cookie check callback
- * \param p_cookie          Context for both callbacks
- */
-void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *conf,
-                           mbedtls_ssl_cookie_write_t *f_cookie_write,
-                           mbedtls_ssl_cookie_check_t *f_cookie_check,
-                           void *p_cookie );
-
-/**
- * \brief          Set client's transport-level identification info.
- *                 (Server only. DTLS only.)
- *
- *                 This is usually the IP address (and port), but could be
- *                 anything identify the client depending on the underlying
- *                 network stack. Used for HelloVerifyRequest with DTLS.
- *                 This is *not* used to route the actual packets.
- *
- * \param ssl      SSL context
- * \param info     Transport-level info identifying the client (eg IP + port)
- * \param ilen     Length of info in bytes
- *
- * \note           An internal copy is made, so the info buffer can be reused.
- *
- * \return         0 on success,
- *                 MBEDTLS_ERR_SSL_BAD_INPUT_DATA if used on client,
- *                 MBEDTLS_ERR_SSL_ALLOC_FAILED if out of memory.
- */
-int mbedtls_ssl_set_client_transport_id( mbedtls_ssl_context *ssl,
-                                 const unsigned char *info,
-                                 size_t ilen );
-
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-/**
- * \brief          Enable or disable anti-replay protection for DTLS.
- *                 (DTLS only, no effect on TLS.)
- *                 Default: enabled.
- *
- * \param conf     SSL configuration
- * \param mode     MBEDTLS_SSL_ANTI_REPLAY_ENABLED or MBEDTLS_SSL_ANTI_REPLAY_DISABLED.
- *
- * \warning        Disabling this is a security risk unless the application
- *                 protocol handles duplicated packets in a safe way. You
- *                 should not disable this without careful consideration.
- *                 However, if your application already detects duplicated
- *                 packets and needs information about them to adjust its
- *                 transmission strategy, then you'll want to disable this.
- */
-void mbedtls_ssl_conf_dtls_anti_replay( mbedtls_ssl_config *conf, char mode );
-#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
-
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-/**
- * \brief          Set a limit on the number of records with a bad MAC
- *                 before terminating the connection.
- *                 (DTLS only, no effect on TLS.)
- *                 Default: 0 (disabled).
- *
- * \param conf     SSL configuration
- * \param limit    Limit, or 0 to disable.
- *
- * \note           If the limit is N, then the connection is terminated when
- *                 the Nth non-authentic record is seen.
- *
- * \note           Records with an invalid header are not counted, only the
- *                 ones going through the authentication-decryption phase.
- *
- * \note           This is a security trade-off related to the fact that it's
- *                 often relatively easy for an active attacker ot inject UDP
- *                 datagrams. On one hand, setting a low limit here makes it
- *                 easier for such an attacker to forcibly terminated a
- *                 connection. On the other hand, a high limit or no limit
- *                 might make us waste resources checking authentication on
- *                 many bogus packets.
- */
-void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *conf, unsigned limit );
-#endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-
-/**
- * \brief          Allow or disallow packing of multiple handshake records
- *                 within a single datagram.
- *
- * \param ssl           The SSL context to configure.
- * \param allow_packing This determines whether datagram packing may
- *                      be used or not. A value of \c 0 means that every
- *                      record will be sent in a separate datagram; a
- *                      value of \c 1 means that, if space permits,
- *                      multiple handshake messages (including CCS) belonging to
- *                      a single flight may be packed within a single datagram.
- *
- * \note           This is enabled by default and should only be disabled
- *                 for test purposes, or if datagram packing causes
- *                 interoperability issues with peers that don't support it.
- *
- * \note           Allowing datagram packing reduces the network load since
- *                 there's less overhead if multiple messages share the same
- *                 datagram. Also, it increases the handshake efficiency
- *                 since messages belonging to a single datagram will not
- *                 be reordered in transit, and so future message buffering
- *                 or flight retransmission (if no buffering is used) as
- *                 means to deal with reordering are needed less frequently.
- *
- * \note           Application records are not affected by this option and
- *                 are currently always sent in separate datagrams.
- *
- */
-void mbedtls_ssl_set_datagram_packing( mbedtls_ssl_context *ssl,
-                                       unsigned allow_packing );
-
-/**
- * \brief          Set retransmit timeout values for the DTLS handshake.
- *                 (DTLS only, no effect on TLS.)
- *
- * \param conf     SSL configuration
- * \param min      Initial timeout value in milliseconds.
- *                 Default: 1000 (1 second).
- * \param max      Maximum timeout value in milliseconds.
- *                 Default: 60000 (60 seconds).
- *
- * \note           Default values are from RFC 6347 section 4.2.4.1.
- *
- * \note           The 'min' value should typically be slightly above the
- *                 expected round-trip time to your peer, plus whatever time
- *                 it takes for the peer to process the message. For example,
- *                 if your RTT is about 600ms and you peer needs up to 1s to
- *                 do the cryptographic operations in the handshake, then you
- *                 should set 'min' slightly above 1600. Lower values of 'min'
- *                 might cause spurious resends which waste network resources,
- *                 while larger value of 'min' will increase overall latency
- *                 on unreliable network links.
- *
- * \note           The more unreliable your network connection is, the larger
- *                 your max / min ratio needs to be in order to achieve
- *                 reliable handshakes.
- *
- * \note           Messages are retransmitted up to log2(ceil(max/min)) times.
- *                 For example, if min = 1s and max = 5s, the retransmit plan
- *                 goes: send ... 1s -> resend ... 2s -> resend ... 4s ->
- *                 resend ... 5s -> give up and return a timeout error.
- */
-void mbedtls_ssl_conf_handshake_timeout( mbedtls_ssl_config *conf, uint32_t min, uint32_t max );
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-#if defined(MBEDTLS_SSL_SRV_C)
-/**
- * \brief          Set the session cache callbacks (server-side only)
- *                 If not set, no session resuming is done (except if session
- *                 tickets are enabled too).
- *
- *                 The session cache has the responsibility to check for stale
- *                 entries based on timeout. See RFC 5246 for recommendations.
- *
- *                 Warning: session.peer_cert is cleared by the SSL/TLS layer on
- *                 connection shutdown, so do not cache the pointer! Either set
- *                 it to NULL or make a full copy of the certificate.
- *
- *                 The get callback is called once during the initial handshake
- *                 to enable session resuming. The get function has the
- *                 following parameters: (void *parameter, mbedtls_ssl_session *session)
- *                 If a valid entry is found, it should fill the master of
- *                 the session object with the cached values and return 0,
- *                 return 1 otherwise. Optionally peer_cert can be set as well
- *                 if it is properly present in cache entry.
- *
- *                 The set callback is called once during the initial handshake
- *                 to enable session resuming after the entire handshake has
- *                 been finished. The set function has the following parameters:
- *                 (void *parameter, const mbedtls_ssl_session *session). The function
- *                 should create a cache entry for future retrieval based on
- *                 the data in the session structure and should keep in mind
- *                 that the mbedtls_ssl_session object presented (and all its referenced
- *                 data) is cleared by the SSL/TLS layer when the connection is
- *                 terminated. It is recommended to add metadata to determine if
- *                 an entry is still valid in the future. Return 0 if
- *                 successfully cached, return 1 otherwise.
- *
- * \param conf           SSL configuration
- * \param p_cache        parmater (context) for both callbacks
- * \param f_get_cache    session get callback
- * \param f_set_cache    session set callback
- */
-void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *conf,
-        void *p_cache,
-        int (*f_get_cache)(void *, mbedtls_ssl_session *),
-        int (*f_set_cache)(void *, const mbedtls_ssl_session *) );
-#endif /* MBEDTLS_SSL_SRV_C */
-
-#if defined(MBEDTLS_SSL_CLI_C)
-/**
- * \brief          Request resumption of session (client-side only)
- *                 Session data is copied from presented session structure.
- *
- * \param ssl      SSL context
- * \param session  session context
- *
- * \return         0 if successful,
- *                 MBEDTLS_ERR_SSL_ALLOC_FAILED if memory allocation failed,
- *                 MBEDTLS_ERR_SSL_BAD_INPUT_DATA if used server-side or
- *                 arguments are otherwise invalid
- *
- * \sa             mbedtls_ssl_get_session()
- */
-int mbedtls_ssl_set_session( mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session );
-#endif /* MBEDTLS_SSL_CLI_C */
-
-/**
- * \brief               Set the list of allowed ciphersuites and the preference
- *                      order. First in the list has the highest preference.
- *                      (Overrides all version-specific lists)
- *
- *                      The ciphersuites array is not copied, and must remain
- *                      valid for the lifetime of the ssl_config.
- *
- *                      Note: The server uses its own preferences
- *                      over the preference of the client unless
- *                      MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE is defined!
- *
- * \param conf          SSL configuration
- * \param ciphersuites  0-terminated list of allowed ciphersuites
- */
-void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf,
-                                   const int *ciphersuites );
-
-/**
- * \brief               Set the list of allowed ciphersuites and the
- *                      preference order for a specific version of the protocol.
- *                      (Only useful on the server side)
- *
- *                      The ciphersuites array is not copied, and must remain
- *                      valid for the lifetime of the ssl_config.
- *
- * \param conf          SSL configuration
- * \param ciphersuites  0-terminated list of allowed ciphersuites
- * \param major         Major version number (only MBEDTLS_SSL_MAJOR_VERSION_3
- *                      supported)
- * \param minor         Minor version number (MBEDTLS_SSL_MINOR_VERSION_0,
- *                      MBEDTLS_SSL_MINOR_VERSION_1 and MBEDTLS_SSL_MINOR_VERSION_2,
- *                      MBEDTLS_SSL_MINOR_VERSION_3 supported)
- *
- * \note                With DTLS, use MBEDTLS_SSL_MINOR_VERSION_2 for DTLS 1.0
- *                      and MBEDTLS_SSL_MINOR_VERSION_3 for DTLS 1.2
- */
-void mbedtls_ssl_conf_ciphersuites_for_version( mbedtls_ssl_config *conf,
-                                       const int *ciphersuites,
-                                       int major, int minor );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/**
- * \brief          Set the X.509 security profile used for verification
- *
- * \note           The restrictions are enforced for all certificates in the
- *                 chain. However, signatures in the handshake are not covered
- *                 by this setting but by \b mbedtls_ssl_conf_sig_hashes().
- *
- * \param conf     SSL configuration
- * \param profile  Profile to use
- */
-void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf,
-                                    const mbedtls_x509_crt_profile *profile );
-
-/**
- * \brief          Set the data required to verify peer certificate
- *
- * \note           See \c mbedtls_x509_crt_verify() for notes regarding the
- *                 parameters ca_chain (maps to trust_ca for that function)
- *                 and ca_crl.
- *
- * \param conf     SSL configuration
- * \param ca_chain trusted CA chain (meaning all fully trusted top-level CAs)
- * \param ca_crl   trusted CA CRLs
- */
-void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *conf,
-                               mbedtls_x509_crt *ca_chain,
-                               mbedtls_x509_crl *ca_crl );
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-/**
- * \brief          Set the trusted certificate callback.
- *
- *                 This API allows to register the set of trusted certificates
- *                 through a callback, instead of a linked list as configured
- *                 by mbedtls_ssl_conf_ca_chain().
- *
- *                 This is useful for example in contexts where a large number
- *                 of CAs are used, and the inefficiency of maintaining them
- *                 in a linked list cannot be tolerated. It is also useful when
- *                 the set of trusted CAs needs to be modified frequently.
- *
- *                 See the documentation of `mbedtls_x509_crt_ca_cb_t` for
- *                 more information.
- *
- * \param conf     The SSL configuration to register the callback with.
- * \param f_ca_cb  The trusted certificate callback to use when verifying
- *                 certificate chains.
- * \param p_ca_cb  The context to be passed to \p f_ca_cb (for example,
- *                 a reference to a trusted CA database).
- *
- * \note           This API is incompatible with mbedtls_ssl_conf_ca_chain():
- *                 Any call to this function overwrites the values set through
- *                 earlier calls to mbedtls_ssl_conf_ca_chain() or
- *                 mbedtls_ssl_conf_ca_cb().
- *
- * \note           This API is incompatible with CA indication in
- *                 CertificateRequest messages: A server-side SSL context which
- *                 is bound to an SSL configuration that uses a CA callback
- *                 configured via mbedtls_ssl_conf_ca_cb(), and which requires
- *                 client authentication, will send an empty CA list in the
- *                 corresponding CertificateRequest message.
- *
- * \note           This API is incompatible with mbedtls_ssl_set_hs_ca_chain():
- *                 If an SSL context is bound to an SSL configuration which uses
- *                 CA callbacks configured via mbedtls_ssl_conf_ca_cb(), then
- *                 calls to mbedtls_ssl_set_hs_ca_chain() have no effect.
- *
- * \note           The use of this API disables the use of restartable ECC
- *                 during X.509 CRT signature verification (but doesn't affect
- *                 other uses).
- *
- * \warning        This API is incompatible with the use of CRLs. Any call to
- *                 mbedtls_ssl_conf_ca_cb() unsets CRLs configured through
- *                 earlier calls to mbedtls_ssl_conf_ca_chain().
- *
- * \warning        In multi-threaded environments, the callback \p f_ca_cb
- *                 must be thread-safe, and it is the user's responsibility
- *                 to guarantee this (for example through a mutex
- *                 contained in the callback context pointed to by \p p_ca_cb).
- */
-void mbedtls_ssl_conf_ca_cb( mbedtls_ssl_config *conf,
-                             mbedtls_x509_crt_ca_cb_t f_ca_cb,
-                             void *p_ca_cb );
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-
-/**
- * \brief          Set own certificate chain and private key
- *
- * \note           own_cert should contain in order from the bottom up your
- *                 certificate chain. The top certificate (self-signed)
- *                 can be omitted.
- *
- * \note           On server, this function can be called multiple times to
- *                 provision more than one cert/key pair (eg one ECDSA, one
- *                 RSA with SHA-256, one RSA with SHA-1). An adequate
- *                 certificate will be selected according to the client's
- *                 advertised capabilities. In case multiple certificates are
- *                 adequate, preference is given to the one set by the first
- *                 call to this function, then second, etc.
- *
- * \note           On client, only the first call has any effect. That is,
- *                 only one client certificate can be provisioned. The
- *                 server's preferences in its CertficateRequest message will
- *                 be ignored and our only cert will be sent regardless of
- *                 whether it matches those preferences - the server can then
- *                 decide what it wants to do with it.
- *
- * \note           The provided \p pk_key needs to match the public key in the
- *                 first certificate in \p own_cert, or all handshakes using
- *                 that certificate will fail. It is your responsibility
- *                 to ensure that; this function will not perform any check.
- *                 You may use mbedtls_pk_check_pair() in order to perform
- *                 this check yourself, but be aware that this function can
- *                 be computationally expensive on some key types.
- *
- * \param conf     SSL configuration
- * \param own_cert own public certificate chain
- * \param pk_key   own private key
- *
- * \return         0 on success or MBEDTLS_ERR_SSL_ALLOC_FAILED
- */
-int mbedtls_ssl_conf_own_cert( mbedtls_ssl_config *conf,
-                              mbedtls_x509_crt *own_cert,
-                              mbedtls_pk_context *pk_key );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-/**
- * \brief          Configure a pre-shared key (PSK) and identity
- *                 to be used in PSK-based ciphersuites.
- *
- * \note           This is mainly useful for clients. Servers will usually
- *                 want to use \c mbedtls_ssl_conf_psk_cb() instead.
- *
- * \warning        Currently, clients can only register a single pre-shared key.
- *                 Calling this function or mbedtls_ssl_conf_psk_opaque() more
- *                 than once will overwrite values configured in previous calls.
- *                 Support for setting multiple PSKs on clients and selecting
- *                 one based on the identity hint is not a planned feature,
- *                 but feedback is welcomed.
- *
- * \param conf     The SSL configuration to register the PSK with.
- * \param psk      The pointer to the pre-shared key to use.
- * \param psk_len  The length of the pre-shared key in bytes.
- * \param psk_identity      The pointer to the pre-shared key identity.
- * \param psk_identity_len  The length of the pre-shared key identity
- *                          in bytes.
- *
- * \note           The PSK and its identity are copied internally and
- *                 hence need not be preserved by the caller for the lifetime
- *                 of the SSL configuration.
- *
- * \return         \c 0 if successful.
- * \return         An \c MBEDTLS_ERR_SSL_XXX error code on failure.
- */
-int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf,
-                const unsigned char *psk, size_t psk_len,
-                const unsigned char *psk_identity, size_t psk_identity_len );
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-/**
- * \brief          Configure an opaque pre-shared key (PSK) and identity
- *                 to be used in PSK-based ciphersuites.
- *
- * \note           This is mainly useful for clients. Servers will usually
- *                 want to use \c mbedtls_ssl_conf_psk_cb() instead.
- *
- * \warning        Currently, clients can only register a single pre-shared key.
- *                 Calling this function or mbedtls_ssl_conf_psk() more than
- *                 once will overwrite values configured in previous calls.
- *                 Support for setting multiple PSKs on clients and selecting
- *                 one based on the identity hint is not a planned feature,
- *                 but feedback is welcomed.
- *
- * \param conf     The SSL configuration to register the PSK with.
- * \param psk      The identifier of the key slot holding the PSK.
- *                 Until \p conf is destroyed or this function is successfully
- *                 called again, the key slot \p psk must be populated with a
- *                 key of type PSA_ALG_CATEGORY_KEY_DERIVATION whose policy
- *                 allows its use for the key derivation algorithm applied
- *                 in the handshake.
- * \param psk_identity      The pointer to the pre-shared key identity.
- * \param psk_identity_len  The length of the pre-shared key identity
- *                          in bytes.
- *
- * \note           The PSK identity hint is copied internally and hence need
- *                 not be preserved by the caller for the lifetime of the
- *                 SSL configuration.
- *
- * \return         \c 0 if successful.
- * \return         An \c MBEDTLS_ERR_SSL_XXX error code on failure.
- */
-int mbedtls_ssl_conf_psk_opaque( mbedtls_ssl_config *conf,
-                                 psa_key_handle_t psk,
-                                 const unsigned char *psk_identity,
-                                 size_t psk_identity_len );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-/**
- * \brief          Set the pre-shared Key (PSK) for the current handshake.
- *
- * \note           This should only be called inside the PSK callback,
- *                 i.e. the function passed to \c mbedtls_ssl_conf_psk_cb().
- *
- * \param ssl      The SSL context to configure a PSK for.
- * \param psk      The pointer to the pre-shared key.
- * \param psk_len  The length of the pre-shared key in bytes.
- *
- * \return         \c 0 if successful.
- * \return         An \c MBEDTLS_ERR_SSL_XXX error code on failure.
- */
-int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *ssl,
-                            const unsigned char *psk, size_t psk_len );
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-/**
- * \brief          Set an opaque pre-shared Key (PSK) for the current handshake.
- *
- * \note           This should only be called inside the PSK callback,
- *                 i.e. the function passed to \c mbedtls_ssl_conf_psk_cb().
- *
- * \param ssl      The SSL context to configure a PSK for.
- * \param psk      The identifier of the key slot holding the PSK.
- *                 For the duration of the current handshake, the key slot
- *                 must be populated with a key of type
- *                 PSA_ALG_CATEGORY_KEY_DERIVATION whose policy allows its
- *                 use for the key derivation algorithm
- *                 applied in the handshake.
-  *
- * \return         \c 0 if successful.
- * \return         An \c MBEDTLS_ERR_SSL_XXX error code on failure.
- */
-int mbedtls_ssl_set_hs_psk_opaque( mbedtls_ssl_context *ssl,
-                                   psa_key_handle_t psk );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-/**
- * \brief          Set the PSK callback (server-side only).
- *
- *                 If set, the PSK callback is called for each
- *                 handshake where a PSK-based ciphersuite was negotiated.
- *                 The caller provides the identity received and wants to
- *                 receive the actual PSK data and length.
- *
- *                 The callback has the following parameters:
- *                 - \c void*: The opaque pointer \p p_psk.
- *                 - \c mbedtls_ssl_context*: The SSL context to which
- *                                            the operation applies.
- *                 - \c const unsigned char*: The PSK identity
- *                                            selected by the client.
- *                 - \c size_t: The length of the PSK identity
- *                              selected by the client.
- *
- *                 If a valid PSK identity is found, the callback should use
- *                 \c mbedtls_ssl_set_hs_psk() or
- *                 \c mbedtls_ssl_set_hs_psk_opaque()
- *                 on the SSL context to set the correct PSK and return \c 0.
- *                 Any other return value will result in a denied PSK identity.
- *
- * \note           If you set a PSK callback using this function, then you
- *                 don't need to set a PSK key and identity using
- *                 \c mbedtls_ssl_conf_psk().
- *
- * \param conf     The SSL configuration to register the callback with.
- * \param f_psk    The callback for selecting and setting the PSK based
- *                 in the PSK identity chosen by the client.
- * \param p_psk    A pointer to an opaque structure to be passed to
- *                 the callback, for example a PSK store.
- */
-void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *conf,
-                     int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *,
-                                  size_t),
-                     void *p_psk );
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C)
-
-#if !defined(MBEDTLS_DEPRECATED_REMOVED)
-
-#if defined(MBEDTLS_DEPRECATED_WARNING)
-#define MBEDTLS_DEPRECATED    __attribute__((deprecated))
-#else
-#define MBEDTLS_DEPRECATED
-#endif
-
-/**
- * \brief          Set the Diffie-Hellman public P and G values,
- *                 read as hexadecimal strings (server-side only)
- *                 (Default values: MBEDTLS_DHM_RFC3526_MODP_2048_[PG])
- *
- * \param conf     SSL configuration
- * \param dhm_P    Diffie-Hellman-Merkle modulus
- * \param dhm_G    Diffie-Hellman-Merkle generator
- *
- * \deprecated     Superseded by \c mbedtls_ssl_conf_dh_param_bin.
- *
- * \return         0 if successful
- */
-MBEDTLS_DEPRECATED int mbedtls_ssl_conf_dh_param( mbedtls_ssl_config *conf,
-                                                  const char *dhm_P,
-                                                  const char *dhm_G );
-
-#endif /* MBEDTLS_DEPRECATED_REMOVED */
-
-/**
- * \brief          Set the Diffie-Hellman public P and G values
- *                 from big-endian binary presentations.
- *                 (Default values: MBEDTLS_DHM_RFC3526_MODP_2048_[PG]_BIN)
- *
- * \param conf     SSL configuration
- * \param dhm_P    Diffie-Hellman-Merkle modulus in big-endian binary form
- * \param P_len    Length of DHM modulus
- * \param dhm_G    Diffie-Hellman-Merkle generator in big-endian binary form
- * \param G_len    Length of DHM generator
- *
- * \return         0 if successful
- */
-int mbedtls_ssl_conf_dh_param_bin( mbedtls_ssl_config *conf,
-                                   const unsigned char *dhm_P, size_t P_len,
-                                   const unsigned char *dhm_G,  size_t G_len );
-
-/**
- * \brief          Set the Diffie-Hellman public P and G values,
- *                 read from existing context (server-side only)
- *
- * \param conf     SSL configuration
- * \param dhm_ctx  Diffie-Hellman-Merkle context
- *
- * \return         0 if successful
- */
-int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx );
-#endif /* MBEDTLS_DHM_C && defined(MBEDTLS_SSL_SRV_C) */
-
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C)
-/**
- * \brief          Set the minimum length for Diffie-Hellman parameters.
- *                 (Client-side only.)
- *                 (Default: 1024 bits.)
- *
- * \param conf     SSL configuration
- * \param bitlen   Minimum bit length of the DHM prime
- */
-void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *conf,
-                                      unsigned int bitlen );
-#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_CLI_C */
-
-#if defined(MBEDTLS_ECP_C)
-/**
- * \brief          Set the allowed curves in order of preference.
- *                 (Default: all defined curves.)
- *
- *                 On server: this only affects selection of the ECDHE curve;
- *                 the curves used for ECDH and ECDSA are determined by the
- *                 list of available certificates instead.
- *
- *                 On client: this affects the list of curves offered for any
- *                 use. The server can override our preference order.
- *
- *                 Both sides: limits the set of curves accepted for use in
- *                 ECDHE and in the peer's end-entity certificate.
- *
- * \note           This has no influence on which curves are allowed inside the
- *                 certificate chains, see \c mbedtls_ssl_conf_cert_profile()
- *                 for that. For the end-entity certificate however, the key
- *                 will be accepted only if it is allowed both by this list
- *                 and by the cert profile.
- *
- * \note           This list should be ordered by decreasing preference
- *                 (preferred curve first).
- *
- * \param conf     SSL configuration
- * \param curves   Ordered list of allowed curves,
- *                 terminated by MBEDTLS_ECP_DP_NONE.
- */
-void mbedtls_ssl_conf_curves( mbedtls_ssl_config *conf,
-                              const mbedtls_ecp_group_id *curves );
-#endif /* MBEDTLS_ECP_C */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-/**
- * \brief          Set the allowed hashes for signatures during the handshake.
- *                 (Default: all available hashes except MD5.)
- *
- * \note           This only affects which hashes are offered and can be used
- *                 for signatures during the handshake. Hashes for message
- *                 authentication and the TLS PRF are controlled by the
- *                 ciphersuite, see \c mbedtls_ssl_conf_ciphersuites(). Hashes
- *                 used for certificate signature are controlled by the
- *                 verification profile, see \c mbedtls_ssl_conf_cert_profile().
- *
- * \note           This list should be ordered by decreasing preference
- *                 (preferred hash first).
- *
- * \param conf     SSL configuration
- * \param hashes   Ordered list of allowed signature hashes,
- *                 terminated by \c MBEDTLS_MD_NONE.
- */
-void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf,
-                                  const int *hashes );
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/**
- * \brief          Set or reset the hostname to check against the received
- *                 server certificate. It sets the ServerName TLS extension,
- *                 too, if that extension is enabled. (client-side only)
- *
- * \param ssl      SSL context
- * \param hostname the server hostname, may be NULL to clear hostname
-
- * \note           Maximum hostname length MBEDTLS_SSL_MAX_HOST_NAME_LEN.
- *
- * \return         0 if successful, MBEDTLS_ERR_SSL_ALLOC_FAILED on
- *                 allocation failure, MBEDTLS_ERR_SSL_BAD_INPUT_DATA on
- *                 too long input hostname.
- *
- *                 Hostname set to the one provided on success (cleared
- *                 when NULL). On allocation failure hostname is cleared.
- *                 On too long input failure, old hostname is unchanged.
- */
-int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-/**
- * \brief          Set own certificate and key for the current handshake
- *
- * \note           Same as \c mbedtls_ssl_conf_own_cert() but for use within
- *                 the SNI callback.
- *
- * \param ssl      SSL context
- * \param own_cert own public certificate chain
- * \param pk_key   own private key
- *
- * \return         0 on success or MBEDTLS_ERR_SSL_ALLOC_FAILED
- */
-int mbedtls_ssl_set_hs_own_cert( mbedtls_ssl_context *ssl,
-                                 mbedtls_x509_crt *own_cert,
-                                 mbedtls_pk_context *pk_key );
-
-/**
- * \brief          Set the data required to verify peer certificate for the
- *                 current handshake
- *
- * \note           Same as \c mbedtls_ssl_conf_ca_chain() but for use within
- *                 the SNI callback.
- *
- * \param ssl      SSL context
- * \param ca_chain trusted CA chain (meaning all fully trusted top-level CAs)
- * \param ca_crl   trusted CA CRLs
- */
-void mbedtls_ssl_set_hs_ca_chain( mbedtls_ssl_context *ssl,
-                                  mbedtls_x509_crt *ca_chain,
-                                  mbedtls_x509_crl *ca_crl );
-
-/**
- * \brief          Set authmode for the current handshake.
- *
- * \note           Same as \c mbedtls_ssl_conf_authmode() but for use within
- *                 the SNI callback.
- *
- * \param ssl      SSL context
- * \param authmode MBEDTLS_SSL_VERIFY_NONE, MBEDTLS_SSL_VERIFY_OPTIONAL or
- *                 MBEDTLS_SSL_VERIFY_REQUIRED
- */
-void mbedtls_ssl_set_hs_authmode( mbedtls_ssl_context *ssl,
-                                  int authmode );
-
-/**
- * \brief          Set server side ServerName TLS extension callback
- *                 (optional, server-side only).
- *
- *                 If set, the ServerName callback is called whenever the
- *                 server receives a ServerName TLS extension from the client
- *                 during a handshake. The ServerName callback has the
- *                 following parameters: (void *parameter, mbedtls_ssl_context *ssl,
- *                 const unsigned char *hostname, size_t len). If a suitable
- *                 certificate is found, the callback must set the
- *                 certificate(s) and key(s) to use with \c
- *                 mbedtls_ssl_set_hs_own_cert() (can be called repeatedly),
- *                 and may optionally adjust the CA and associated CRL with \c
- *                 mbedtls_ssl_set_hs_ca_chain() as well as the client
- *                 authentication mode with \c mbedtls_ssl_set_hs_authmode(),
- *                 then must return 0. If no matching name is found, the
- *                 callback must either set a default cert, or
- *                 return non-zero to abort the handshake at this point.
- *
- * \param conf     SSL configuration
- * \param f_sni    verification function
- * \param p_sni    verification parameter
- */
-void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf,
-                  int (*f_sni)(void *, mbedtls_ssl_context *, const unsigned char *,
-                               size_t),
-                  void *p_sni );
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-/**
- * \brief          Set the EC J-PAKE password for current handshake.
- *
- * \note           An internal copy is made, and destroyed as soon as the
- *                 handshake is completed, or when the SSL context is reset or
- *                 freed.
- *
- * \note           The SSL context needs to be already set up. The right place
- *                 to call this function is between \c mbedtls_ssl_setup() or
- *                 \c mbedtls_ssl_reset() and \c mbedtls_ssl_handshake().
- *
- * \param ssl      SSL context
- * \param pw       EC J-PAKE password (pre-shared secret)
- * \param pw_len   length of pw in bytes
- *
- * \return         0 on success, or a negative error code.
- */
-int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *ssl,
-                                         const unsigned char *pw,
-                                         size_t pw_len );
-#endif /*MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_SSL_ALPN)
-/**
- * \brief          Set the supported Application Layer Protocols.
- *
- * \param conf     SSL configuration
- * \param protos   Pointer to a NULL-terminated list of supported protocols,
- *                 in decreasing preference order. The pointer to the list is
- *                 recorded by the library for later reference as required, so
- *                 the lifetime of the table must be atleast as long as the
- *                 lifetime of the SSL configuration structure.
- *
- * \return         0 on success, or MBEDTLS_ERR_SSL_BAD_INPUT_DATA.
- */
-int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *conf, const char **protos );
-
-/**
- * \brief          Get the name of the negotiated Application Layer Protocol.
- *                 This function should be called after the handshake is
- *                 completed.
- *
- * \param ssl      SSL context
- *
- * \return         Protcol name, or NULL if no protocol was negotiated.
- */
-const char *mbedtls_ssl_get_alpn_protocol( const mbedtls_ssl_context *ssl );
-#endif /* MBEDTLS_SSL_ALPN */
-
-/**
- * \brief          Set the maximum supported version sent from the client side
- *                 and/or accepted at the server side
- *                 (Default: MBEDTLS_SSL_MAX_MAJOR_VERSION, MBEDTLS_SSL_MAX_MINOR_VERSION)
- *
- * \note           This ignores ciphersuites from higher versions.
- *
- * \note           With DTLS, use MBEDTLS_SSL_MINOR_VERSION_2 for DTLS 1.0 and
- *                 MBEDTLS_SSL_MINOR_VERSION_3 for DTLS 1.2
- *
- * \param conf     SSL configuration
- * \param major    Major version number (only MBEDTLS_SSL_MAJOR_VERSION_3 supported)
- * \param minor    Minor version number (MBEDTLS_SSL_MINOR_VERSION_0,
- *                 MBEDTLS_SSL_MINOR_VERSION_1 and MBEDTLS_SSL_MINOR_VERSION_2,
- *                 MBEDTLS_SSL_MINOR_VERSION_3 supported)
- */
-void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *conf, int major, int minor );
-
-/**
- * \brief          Set the minimum accepted SSL/TLS protocol version
- *                 (Default: TLS 1.0)
- *
- * \note           Input outside of the SSL_MAX_XXXXX_VERSION and
- *                 SSL_MIN_XXXXX_VERSION range is ignored.
- *
- * \note           MBEDTLS_SSL_MINOR_VERSION_0 (SSL v3) should be avoided.
- *
- * \note           With DTLS, use MBEDTLS_SSL_MINOR_VERSION_2 for DTLS 1.0 and
- *                 MBEDTLS_SSL_MINOR_VERSION_3 for DTLS 1.2
- *
- * \param conf     SSL configuration
- * \param major    Major version number (only MBEDTLS_SSL_MAJOR_VERSION_3 supported)
- * \param minor    Minor version number (MBEDTLS_SSL_MINOR_VERSION_0,
- *                 MBEDTLS_SSL_MINOR_VERSION_1 and MBEDTLS_SSL_MINOR_VERSION_2,
- *                 MBEDTLS_SSL_MINOR_VERSION_3 supported)
- */
-void mbedtls_ssl_conf_min_version( mbedtls_ssl_config *conf, int major, int minor );
-
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C)
-/**
- * \brief          Set the fallback flag (client-side only).
- *                 (Default: MBEDTLS_SSL_IS_NOT_FALLBACK).
- *
- * \note           Set to MBEDTLS_SSL_IS_FALLBACK when preparing a fallback
- *                 connection, that is a connection with max_version set to a
- *                 lower value than the value you're willing to use. Such
- *                 fallback connections are not recommended but are sometimes
- *                 necessary to interoperate with buggy (version-intolerant)
- *                 servers.
- *
- * \warning        You should NOT set this to MBEDTLS_SSL_IS_FALLBACK for
- *                 non-fallback connections! This would appear to work for a
- *                 while, then cause failures when the server is upgraded to
- *                 support a newer TLS version.
- *
- * \param conf     SSL configuration
- * \param fallback MBEDTLS_SSL_IS_NOT_FALLBACK or MBEDTLS_SSL_IS_FALLBACK
- */
-void mbedtls_ssl_conf_fallback( mbedtls_ssl_config *conf, char fallback );
-#endif /* MBEDTLS_SSL_FALLBACK_SCSV && MBEDTLS_SSL_CLI_C */
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-/**
- * \brief           Enable or disable Encrypt-then-MAC
- *                  (Default: MBEDTLS_SSL_ETM_ENABLED)
- *
- * \note            This should always be enabled, it is a security
- *                  improvement, and should not cause any interoperability
- *                  issue (used only if the peer supports it too).
- *
- * \param conf      SSL configuration
- * \param etm       MBEDTLS_SSL_ETM_ENABLED or MBEDTLS_SSL_ETM_DISABLED
- */
-void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm );
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-/**
- * \brief           Enable or disable Extended Master Secret negotiation.
- *                  (Default: MBEDTLS_SSL_EXTENDED_MS_ENABLED)
- *
- * \note            This should always be enabled, it is a security fix to the
- *                  protocol, and should not cause any interoperability issue
- *                  (used only if the peer supports it too).
- *
- * \param conf      SSL configuration
- * \param ems       MBEDTLS_SSL_EXTENDED_MS_ENABLED or MBEDTLS_SSL_EXTENDED_MS_DISABLED
- */
-void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems );
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-
-#if defined(MBEDTLS_ARC4_C)
-/**
- * \brief          Disable or enable support for RC4
- *                 (Default: MBEDTLS_SSL_ARC4_DISABLED)
- *
- * \warning        Use of RC4 in DTLS/TLS has been prohibited by RFC 7465
- *                 for security reasons. Use at your own risk.
- *
- * \note           This function is deprecated and will likely be removed in
- *                 a future version of the library.
- *                 RC4 is disabled by default at compile time and needs to be
- *                 actively enabled for use with legacy systems.
- *
- * \param conf     SSL configuration
- * \param arc4     MBEDTLS_SSL_ARC4_ENABLED or MBEDTLS_SSL_ARC4_DISABLED
- */
-void mbedtls_ssl_conf_arc4_support( mbedtls_ssl_config *conf, char arc4 );
-#endif /* MBEDTLS_ARC4_C */
-
-#if defined(MBEDTLS_SSL_SRV_C)
-/**
- * \brief          Whether to send a list of acceptable CAs in
- *                 CertificateRequest messages.
- *                 (Default: do send)
- *
- * \param conf     SSL configuration
- * \param cert_req_ca_list   MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED or
- *                          MBEDTLS_SSL_CERT_REQ_CA_LIST_DISABLED
- */
-void mbedtls_ssl_conf_cert_req_ca_list( mbedtls_ssl_config *conf,
-                                          char cert_req_ca_list );
-#endif /* MBEDTLS_SSL_SRV_C */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-/**
- * \brief          Set the maximum fragment length to emit and/or negotiate
- *                 (Default: the smaller of MBEDTLS_SSL_IN_CONTENT_LEN and
- *                 MBEDTLS_SSL_OUT_CONTENT_LEN, usually 2^14 bytes)
- *                 (Server: set maximum fragment length to emit,
- *                 usually negotiated by the client during handshake
- *                 (Client: set maximum fragment length to emit *and*
- *                 negotiate with the server during handshake)
- *
- * \note           With TLS, this currently only affects ApplicationData (sent
- *                 with \c mbedtls_ssl_read()), not handshake messages.
- *                 With DTLS, this affects both ApplicationData and handshake.
- *
- * \note           This sets the maximum length for a record's payload,
- *                 excluding record overhead that will be added to it, see
- *                 \c mbedtls_ssl_get_record_expansion().
- *
- * \note           For DTLS, it is also possible to set a limit for the total
- *                 size of daragrams passed to the transport layer, including
- *                 record overhead, see \c mbedtls_ssl_set_mtu().
- *
- * \param conf     SSL configuration
- * \param mfl_code Code for maximum fragment length (allowed values:
- *                 MBEDTLS_SSL_MAX_FRAG_LEN_512,  MBEDTLS_SSL_MAX_FRAG_LEN_1024,
- *                 MBEDTLS_SSL_MAX_FRAG_LEN_2048, MBEDTLS_SSL_MAX_FRAG_LEN_4096)
- *
- * \return         0 if successful or MBEDTLS_ERR_SSL_BAD_INPUT_DATA
- */
-int mbedtls_ssl_conf_max_frag_len( mbedtls_ssl_config *conf, unsigned char mfl_code );
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-/**
- * \brief          Activate negotiation of truncated HMAC
- *                 (Default: MBEDTLS_SSL_TRUNC_HMAC_DISABLED)
- *
- * \param conf     SSL configuration
- * \param truncate Enable or disable (MBEDTLS_SSL_TRUNC_HMAC_ENABLED or
- *                                    MBEDTLS_SSL_TRUNC_HMAC_DISABLED)
- */
-void mbedtls_ssl_conf_truncated_hmac( mbedtls_ssl_config *conf, int truncate );
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-/**
- * \brief          Enable / Disable 1/n-1 record splitting
- *                 (Default: MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED)
- *
- * \note           Only affects SSLv3 and TLS 1.0, not higher versions.
- *                 Does not affect non-CBC ciphersuites in any version.
- *
- * \param conf     SSL configuration
- * \param split    MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED or
- *                 MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED
- */
-void mbedtls_ssl_conf_cbc_record_splitting( mbedtls_ssl_config *conf, char split );
-#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
-/**
- * \brief          Enable / Disable session tickets (client only).
- *                 (Default: MBEDTLS_SSL_SESSION_TICKETS_ENABLED.)
- *
- * \note           On server, use \c mbedtls_ssl_conf_session_tickets_cb().
- *
- * \param conf     SSL configuration
- * \param use_tickets   Enable or disable (MBEDTLS_SSL_SESSION_TICKETS_ENABLED or
- *                                         MBEDTLS_SSL_SESSION_TICKETS_DISABLED)
- */
-void mbedtls_ssl_conf_session_tickets( mbedtls_ssl_config *conf, int use_tickets );
-#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-/**
- * \brief          Enable / Disable renegotiation support for connection when
- *                 initiated by peer
- *                 (Default: MBEDTLS_SSL_RENEGOTIATION_DISABLED)
- *
- * \warning        It is recommended to always disable renegotation unless you
- *                 know you need it and you know what you're doing. In the
- *                 past, there have been several issues associated with
- *                 renegotiation or a poor understanding of its properties.
- *
- * \note           Server-side, enabling renegotiation also makes the server
- *                 susceptible to a resource DoS by a malicious client.
- *
- * \param conf    SSL configuration
- * \param renegotiation     Enable or disable (MBEDTLS_SSL_RENEGOTIATION_ENABLED or
- *                                             MBEDTLS_SSL_RENEGOTIATION_DISABLED)
- */
-void mbedtls_ssl_conf_renegotiation( mbedtls_ssl_config *conf, int renegotiation );
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-/**
- * \brief          Prevent or allow legacy renegotiation.
- *                 (Default: MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION)
- *
- *                 MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION allows connections to
- *                 be established even if the peer does not support
- *                 secure renegotiation, but does not allow renegotiation
- *                 to take place if not secure.
- *                 (Interoperable and secure option)
- *
- *                 MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION allows renegotiations
- *                 with non-upgraded peers. Allowing legacy renegotiation
- *                 makes the connection vulnerable to specific man in the
- *                 middle attacks. (See RFC 5746)
- *                 (Most interoperable and least secure option)
- *
- *                 MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE breaks off connections
- *                 if peer does not support secure renegotiation. Results
- *                 in interoperability issues with non-upgraded peers
- *                 that do not support renegotiation altogether.
- *                 (Most secure option, interoperability issues)
- *
- * \param conf     SSL configuration
- * \param allow_legacy  Prevent or allow (SSL_NO_LEGACY_RENEGOTIATION,
- *                                        SSL_ALLOW_LEGACY_RENEGOTIATION or
- *                                        MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE)
- */
-void mbedtls_ssl_conf_legacy_renegotiation( mbedtls_ssl_config *conf, int allow_legacy );
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-/**
- * \brief          Enforce renegotiation requests.
- *                 (Default: enforced, max_records = 16)
- *
- *                 When we request a renegotiation, the peer can comply or
- *                 ignore the request. This function allows us to decide
- *                 whether to enforce our renegotiation requests by closing
- *                 the connection if the peer doesn't comply.
- *
- *                 However, records could already be in transit from the peer
- *                 when the request is emitted. In order to increase
- *                 reliability, we can accept a number of records before the
- *                 expected handshake records.
- *
- *                 The optimal value is highly dependent on the specific usage
- *                 scenario.
- *
- * \note           With DTLS and server-initiated renegotiation, the
- *                 HelloRequest is retransmited every time mbedtls_ssl_read() times
- *                 out or receives Application Data, until:
- *                 - max_records records have beens seen, if it is >= 0, or
- *                 - the number of retransmits that would happen during an
- *                 actual handshake has been reached.
- *                 Please remember the request might be lost a few times
- *                 if you consider setting max_records to a really low value.
- *
- * \warning        On client, the grace period can only happen during
- *                 mbedtls_ssl_read(), as opposed to mbedtls_ssl_write() and mbedtls_ssl_renegotiate()
- *                 which always behave as if max_record was 0. The reason is,
- *                 if we receive application data from the server, we need a
- *                 place to write it, which only happens during mbedtls_ssl_read().
- *
- * \param conf     SSL configuration
- * \param max_records Use MBEDTLS_SSL_RENEGOTIATION_NOT_ENFORCED if you don't want to
- *                 enforce renegotiation, or a non-negative value to enforce
- *                 it but allow for a grace period of max_records records.
- */
-void mbedtls_ssl_conf_renegotiation_enforced( mbedtls_ssl_config *conf, int max_records );
-
-/**
- * \brief          Set record counter threshold for periodic renegotiation.
- *                 (Default: 2^48 - 1)
- *
- *                 Renegotiation is automatically triggered when a record
- *                 counter (outgoing or ingoing) crosses the defined
- *                 threshold. The default value is meant to prevent the
- *                 connection from being closed when the counter is about to
- *                 reached its maximal value (it is not allowed to wrap).
- *
- *                 Lower values can be used to enforce policies such as "keys
- *                 must be refreshed every N packets with cipher X".
- *
- *                 The renegotiation period can be disabled by setting
- *                 conf->disable_renegotiation to
- *                 MBEDTLS_SSL_RENEGOTIATION_DISABLED.
- *
- * \note           When the configured transport is
- *                 MBEDTLS_SSL_TRANSPORT_DATAGRAM the maximum renegotiation
- *                 period is 2^48 - 1, and for MBEDTLS_SSL_TRANSPORT_STREAM,
- *                 the maximum renegotiation period is 2^64 - 1.
- *
- * \param conf     SSL configuration
- * \param period   The threshold value: a big-endian 64-bit number.
- */
-void mbedtls_ssl_conf_renegotiation_period( mbedtls_ssl_config *conf,
-                                   const unsigned char period[8] );
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-/**
- * \brief          Check if there is data already read from the
- *                 underlying transport but not yet processed.
- *
- * \param ssl      SSL context
- *
- * \return         0 if nothing's pending, 1 otherwise.
- *
- * \note           This is different in purpose and behaviour from
- *                 \c mbedtls_ssl_get_bytes_avail in that it considers
- *                 any kind of unprocessed data, not only unread
- *                 application data. If \c mbedtls_ssl_get_bytes
- *                 returns a non-zero value, this function will
- *                 also signal pending data, but the converse does
- *                 not hold. For example, in DTLS there might be
- *                 further records waiting to be processed from
- *                 the current underlying transport's datagram.
- *
- * \note           If this function returns 1 (data pending), this
- *                 does not imply that a subsequent call to
- *                 \c mbedtls_ssl_read will provide any data;
- *                 e.g., the unprocessed data might turn out
- *                 to be an alert or a handshake message.
- *
- * \note           This function is useful in the following situation:
- *                 If the SSL/TLS module successfully returns from an
- *                 operation - e.g. a handshake or an application record
- *                 read - and you're awaiting incoming data next, you
- *                 must not immediately idle on the underlying transport
- *                 to have data ready, but you need to check the value
- *                 of this function first. The reason is that the desired
- *                 data might already be read but not yet processed.
- *                 If, in contrast, a previous call to the SSL/TLS module
- *                 returned MBEDTLS_ERR_SSL_WANT_READ, it is not necessary
- *                 to call this function, as the latter error code entails
- *                 that all internal data has been processed.
- *
- */
-int mbedtls_ssl_check_pending( const mbedtls_ssl_context *ssl );
-
-/**
- * \brief          Return the number of application data bytes
- *                 remaining to be read from the current record.
- *
- * \param ssl      SSL context
- *
- * \return         How many bytes are available in the application
- *                 data record read buffer.
- *
- * \note           When working over a datagram transport, this is
- *                 useful to detect the current datagram's boundary
- *                 in case \c mbedtls_ssl_read has written the maximal
- *                 amount of data fitting into the input buffer.
- *
- */
-size_t mbedtls_ssl_get_bytes_avail( const mbedtls_ssl_context *ssl );
-
-/**
- * \brief          Return the result of the certificate verification
- *
- * \param ssl      The SSL context to use.
- *
- * \return         \c 0 if the certificate verification was successful.
- * \return         \c -1u if the result is not available. This may happen
- *                 e.g. if the handshake aborts early, or a verification
- *                 callback returned a fatal error.
- * \return         A bitwise combination of \c MBEDTLS_X509_BADCERT_XXX
- *                 and \c MBEDTLS_X509_BADCRL_XXX failure flags; see x509.h.
- */
-uint32_t mbedtls_ssl_get_verify_result( const mbedtls_ssl_context *ssl );
-
-/**
- * \brief          Return the name of the current ciphersuite
- *
- * \param ssl      SSL context
- *
- * \return         a string containing the ciphersuite name
- */
-const char *mbedtls_ssl_get_ciphersuite( const mbedtls_ssl_context *ssl );
-
-/**
- * \brief          Return the current SSL version (SSLv3/TLSv1/etc)
- *
- * \param ssl      SSL context
- *
- * \return         a string containing the SSL version
- */
-const char *mbedtls_ssl_get_version( const mbedtls_ssl_context *ssl );
-
-/**
- * \brief          Return the (maximum) number of bytes added by the record
- *                 layer: header + encryption/MAC overhead (inc. padding)
- *
- * \note           This function is not available (always returns an error)
- *                 when record compression is enabled.
- *
- * \param ssl      SSL context
- *
- * \return         Current maximum record expansion in bytes, or
- *                 MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE if compression is
- *                 enabled, which makes expansion much less predictable
- */
-int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl );
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-/**
- * \brief          Return the maximum fragment length (payload, in bytes).
- *                 This is the value negotiated with peer if any,
- *                 or the locally configured value.
- *
- * \sa             mbedtls_ssl_conf_max_frag_len()
- * \sa             mbedtls_ssl_get_max_record_payload()
- *
- * \param ssl      SSL context
- *
- * \return         Current maximum fragment length.
- */
-size_t mbedtls_ssl_get_max_frag_len( const mbedtls_ssl_context *ssl );
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-/**
- * \brief          Return the current maximum outgoing record payload in bytes.
- *                 This takes into account the config.h setting \c
- *                 MBEDTLS_SSL_OUT_CONTENT_LEN, the configured and negotiated
- *                 max fragment length extension if used, and for DTLS the
- *                 path MTU as configured and current record expansion.
- *
- * \note           With DTLS, \c mbedtls_ssl_write() will return an error if
- *                 called with a larger length value.
- *                 With TLS, \c mbedtls_ssl_write() will fragment the input if
- *                 necessary and return the number of bytes written; it is up
- *                 to the caller to call \c mbedtls_ssl_write() again in
- *                 order to send the remaining bytes if any.
- *
- * \note           This function is not available (always returns an error)
- *                 when record compression is enabled.
- *
- * \sa             mbedtls_ssl_set_mtu()
- * \sa             mbedtls_ssl_get_max_frag_len()
- * \sa             mbedtls_ssl_get_record_expansion()
- *
- * \param ssl      SSL context
- *
- * \return         Current maximum payload for an outgoing record,
- *                 or a negative error code.
- */
-int mbedtls_ssl_get_max_out_record_payload( const mbedtls_ssl_context *ssl );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/**
- * \brief          Return the peer certificate from the current connection.
- *
- * \param  ssl     The SSL context to use. This must be initialized and setup.
- *
- * \return         The current peer certificate, if available.
- *                 The returned certificate is owned by the SSL context and
- *                 is valid only until the next call to the SSL API.
- * \return         \c NULL if no peer certificate is available. This might
- *                 be because the chosen ciphersuite doesn't use CRTs
- *                 (PSK-based ciphersuites, for example), or because
- *                 #MBEDTLS_SSL_KEEP_PEER_CERTIFICATE has been disabled,
- *                 allowing the stack to free the peer's CRT to save memory.
- *
- * \note           For one-time inspection of the peer's certificate during
- *                 the handshake, consider registering an X.509 CRT verification
- *                 callback through mbedtls_ssl_conf_verify() instead of calling
- *                 this function. Using mbedtls_ssl_conf_verify() also comes at
- *                 the benefit of allowing you to influence the verification
- *                 process, for example by masking expected and tolerated
- *                 verification failures.
- *
- * \warning        You must not use the pointer returned by this function
- *                 after any further call to the SSL API, including
- *                 mbedtls_ssl_read() and mbedtls_ssl_write(); this is
- *                 because the pointer might change during renegotiation,
- *                 which happens transparently to the user.
- *                 If you want to use the certificate across API calls,
- *                 you must make a copy.
- */
-const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert( const mbedtls_ssl_context *ssl );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_CLI_C)
-/**
- * \brief          Save session in order to resume it later (client-side only)
- *                 Session data is copied to presented session structure.
- *
- *
- * \param ssl      SSL context
- * \param session  session context
- *
- * \return         0 if successful,
- *                 MBEDTLS_ERR_SSL_ALLOC_FAILED if memory allocation failed,
- *                 MBEDTLS_ERR_SSL_BAD_INPUT_DATA if used server-side or
- *                 arguments are otherwise invalid.
- *
- * \note           Only the server certificate is copied, and not the full chain,
- *                 so you should not attempt to validate the certificate again
- *                 by calling \c mbedtls_x509_crt_verify() on it.
- *                 Instead, you should use the results from the verification
- *                 in the original handshake by calling \c mbedtls_ssl_get_verify_result()
- *                 after loading the session again into a new SSL context
- *                 using \c mbedtls_ssl_set_session().
- *
- * \note           Once the session object is not needed anymore, you should
- *                 free it by calling \c mbedtls_ssl_session_free().
- *
- * \sa             mbedtls_ssl_set_session()
- */
-int mbedtls_ssl_get_session( const mbedtls_ssl_context *ssl, mbedtls_ssl_session *session );
-#endif /* MBEDTLS_SSL_CLI_C */
-
-/**
- * \brief          Perform the SSL handshake
- *
- * \param ssl      SSL context
- *
- * \return         \c 0 if successful.
- * \return         #MBEDTLS_ERR_SSL_WANT_READ or #MBEDTLS_ERR_SSL_WANT_WRITE
- *                 if the handshake is incomplete and waiting for data to
- *                 be available for reading from or writing to the underlying
- *                 transport - in this case you must call this function again
- *                 when the underlying transport is ready for the operation.
- * \return         #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if an asynchronous
- *                 operation is in progress (see
- *                 mbedtls_ssl_conf_async_private_cb()) - in this case you
- *                 must call this function again when the operation is ready.
- * \return         #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS if a cryptographic
- *                 operation is in progress (see mbedtls_ecp_set_max_ops()) -
- *                 in this case you must call this function again to complete
- *                 the handshake when you're done attending other tasks.
- * \return         #MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED if DTLS is in use
- *                 and the client did not demonstrate reachability yet - in
- *                 this case you must stop using the context (see below).
- * \return         Another SSL error code - in this case you must stop using
- *                 the context (see below).
- *
- * \warning        If this function returns something other than
- *                 \c 0,
- *                 #MBEDTLS_ERR_SSL_WANT_READ,
- *                 #MBEDTLS_ERR_SSL_WANT_WRITE,
- *                 #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or
- *                 #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS,
- *                 you must stop using the SSL context for reading or writing,
- *                 and either free it or call \c mbedtls_ssl_session_reset()
- *                 on it before re-using it for a new connection; the current
- *                 connection must be closed.
- *
- * \note           If DTLS is in use, then you may choose to handle
- *                 #MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED specially for logging
- *                 purposes, as it is an expected return value rather than an
- *                 actual error, but you still need to reset/free the context.
- *
- * \note           Remarks regarding event-driven DTLS:
- *                 If the function returns #MBEDTLS_ERR_SSL_WANT_READ, no datagram
- *                 from the underlying transport layer is currently being processed,
- *                 and it is safe to idle until the timer or the underlying transport
- *                 signal a new event. This is not true for a successful handshake,
- *                 in which case the datagram of the underlying transport that is
- *                 currently being processed might or might not contain further
- *                 DTLS records.
- */
-int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl );
-
-/**
- * \brief          Perform a single step of the SSL handshake
- *
- * \note           The state of the context (ssl->state) will be at
- *                 the next state after this function returns \c 0. Do not
- *                 call this function if state is MBEDTLS_SSL_HANDSHAKE_OVER.
- *
- * \param ssl      SSL context
- *
- * \return         See mbedtls_ssl_handshake().
- *
- * \warning        If this function returns something other than \c 0,
- *                 #MBEDTLS_ERR_SSL_WANT_READ, #MBEDTLS_ERR_SSL_WANT_WRITE,
- *                 #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or
- *                 #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS, you must stop using
- *                 the SSL context for reading or writing, and either free it
- *                 or call \c mbedtls_ssl_session_reset() on it before
- *                 re-using it for a new connection; the current connection
- *                 must be closed.
- */
-int mbedtls_ssl_handshake_step( mbedtls_ssl_context *ssl );
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-/**
- * \brief          Initiate an SSL renegotiation on the running connection.
- *                 Client: perform the renegotiation right now.
- *                 Server: request renegotiation, which will be performed
- *                 during the next call to mbedtls_ssl_read() if honored by
- *                 client.
- *
- * \param ssl      SSL context
- *
- * \return         0 if successful, or any mbedtls_ssl_handshake() return
- *                 value except #MBEDTLS_ERR_SSL_CLIENT_RECONNECT that can't
- *                 happen during a renegotiation.
- *
- * \warning        If this function returns something other than \c 0,
- *                 #MBEDTLS_ERR_SSL_WANT_READ, #MBEDTLS_ERR_SSL_WANT_WRITE,
- *                 #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or
- *                 #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS, you must stop using
- *                 the SSL context for reading or writing, and either free it
- *                 or call \c mbedtls_ssl_session_reset() on it before
- *                 re-using it for a new connection; the current connection
- *                 must be closed.
- *
- */
-int mbedtls_ssl_renegotiate( mbedtls_ssl_context *ssl );
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-/**
- * \brief          Read at most 'len' application data bytes
- *
- * \param ssl      SSL context
- * \param buf      buffer that will hold the data
- * \param len      maximum number of bytes to read
- *
- * \return         The (positive) number of bytes read if successful.
- * \return         \c 0 if the read end of the underlying transport was closed
- *                 - in this case you must stop using the context (see below).
- * \return         #MBEDTLS_ERR_SSL_WANT_READ or #MBEDTLS_ERR_SSL_WANT_WRITE
- *                 if the handshake is incomplete and waiting for data to
- *                 be available for reading from or writing to the underlying
- *                 transport - in this case you must call this function again
- *                 when the underlying transport is ready for the operation.
- * \return         #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if an asynchronous
- *                 operation is in progress (see
- *                 mbedtls_ssl_conf_async_private_cb()) - in this case you
- *                 must call this function again when the operation is ready.
- * \return         #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS if a cryptographic
- *                 operation is in progress (see mbedtls_ecp_set_max_ops()) -
- *                 in this case you must call this function again to complete
- *                 the handshake when you're done attending other tasks.
- * \return         #MBEDTLS_ERR_SSL_CLIENT_RECONNECT if we're at the server
- *                 side of a DTLS connection and the client is initiating a
- *                 new connection using the same source port. See below.
- * \return         Another SSL error code - in this case you must stop using
- *                 the context (see below).
- *
- * \warning        If this function returns something other than
- *                 a positive value,
- *                 #MBEDTLS_ERR_SSL_WANT_READ,
- *                 #MBEDTLS_ERR_SSL_WANT_WRITE,
- *                 #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS,
- *                 #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS or
- *                 #MBEDTLS_ERR_SSL_CLIENT_RECONNECT,
- *                 you must stop using the SSL context for reading or writing,
- *                 and either free it or call \c mbedtls_ssl_session_reset()
- *                 on it before re-using it for a new connection; the current
- *                 connection must be closed.
- *
- * \note           When this function returns #MBEDTLS_ERR_SSL_CLIENT_RECONNECT
- *                 (which can only happen server-side), it means that a client
- *                 is initiating a new connection using the same source port.
- *                 You can either treat that as a connection close and wait
- *                 for the client to resend a ClientHello, or directly
- *                 continue with \c mbedtls_ssl_handshake() with the same
- *                 context (as it has been reset internally). Either way, you
- *                 must make sure this is seen by the application as a new
- *                 connection: application state, if any, should be reset, and
- *                 most importantly the identity of the client must be checked
- *                 again. WARNING: not validating the identity of the client
- *                 again, or not transmitting the new identity to the
- *                 application layer, would allow authentication bypass!
- *
- * \note           Remarks regarding event-driven DTLS:
- *                 - If the function returns #MBEDTLS_ERR_SSL_WANT_READ, no datagram
- *                   from the underlying transport layer is currently being processed,
- *                   and it is safe to idle until the timer or the underlying transport
- *                   signal a new event.
- *                 - This function may return MBEDTLS_ERR_SSL_WANT_READ even if data was
- *                   initially available on the underlying transport, as this data may have
- *                   been only e.g. duplicated messages or a renegotiation request.
- *                   Therefore, you must be prepared to receive MBEDTLS_ERR_SSL_WANT_READ even
- *                   when reacting to an incoming-data event from the underlying transport.
- *                 - On success, the datagram of the underlying transport that is currently
- *                   being processed may contain further DTLS records. You should call
- *                   \c mbedtls_ssl_check_pending to check for remaining records.
- *
- */
-int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len );
-
-/**
- * \brief          Try to write exactly 'len' application data bytes
- *
- * \warning        This function will do partial writes in some cases. If the
- *                 return value is non-negative but less than length, the
- *                 function must be called again with updated arguments:
- *                 buf + ret, len - ret (if ret is the return value) until
- *                 it returns a value equal to the last 'len' argument.
- *
- * \param ssl      SSL context
- * \param buf      buffer holding the data
- * \param len      how many bytes must be written
- *
- * \return         The (non-negative) number of bytes actually written if
- *                 successful (may be less than \p len).
- * \return         #MBEDTLS_ERR_SSL_WANT_READ or #MBEDTLS_ERR_SSL_WANT_WRITE
- *                 if the handshake is incomplete and waiting for data to
- *                 be available for reading from or writing to the underlying
- *                 transport - in this case you must call this function again
- *                 when the underlying transport is ready for the operation.
- * \return         #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if an asynchronous
- *                 operation is in progress (see
- *                 mbedtls_ssl_conf_async_private_cb()) - in this case you
- *                 must call this function again when the operation is ready.
- * \return         #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS if a cryptographic
- *                 operation is in progress (see mbedtls_ecp_set_max_ops()) -
- *                 in this case you must call this function again to complete
- *                 the handshake when you're done attending other tasks.
- * \return         Another SSL error code - in this case you must stop using
- *                 the context (see below).
- *
- * \warning        If this function returns something other than
- *                 a non-negative value,
- *                 #MBEDTLS_ERR_SSL_WANT_READ,
- *                 #MBEDTLS_ERR_SSL_WANT_WRITE,
- *                 #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS or
- *                 #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS,
- *                 you must stop using the SSL context for reading or writing,
- *                 and either free it or call \c mbedtls_ssl_session_reset()
- *                 on it before re-using it for a new connection; the current
- *                 connection must be closed.
- *
- * \note           When this function returns #MBEDTLS_ERR_SSL_WANT_WRITE/READ,
- *                 it must be called later with the *same* arguments,
- *                 until it returns a value greater that or equal to 0. When
- *                 the function returns #MBEDTLS_ERR_SSL_WANT_WRITE there may be
- *                 some partial data in the output buffer, however this is not
- *                 yet sent.
- *
- * \note           If the requested length is greater than the maximum
- *                 fragment length (either the built-in limit or the one set
- *                 or negotiated with the peer), then:
- *                 - with TLS, less bytes than requested are written.
- *                 - with DTLS, MBEDTLS_ERR_SSL_BAD_INPUT_DATA is returned.
- *                 \c mbedtls_ssl_get_max_frag_len() may be used to query the
- *                 active maximum fragment length.
- *
- * \note           Attempting to write 0 bytes will result in an empty TLS
- *                 application record being sent.
- */
-int mbedtls_ssl_write( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len );
-
-/**
- * \brief           Send an alert message
- *
- * \param ssl       SSL context
- * \param level     The alert level of the message
- *                  (MBEDTLS_SSL_ALERT_LEVEL_WARNING or MBEDTLS_SSL_ALERT_LEVEL_FATAL)
- * \param message   The alert message (SSL_ALERT_MSG_*)
- *
- * \return          0 if successful, or a specific SSL error code.
- *
- * \note           If this function returns something other than 0 or
- *                 MBEDTLS_ERR_SSL_WANT_READ/WRITE, you must stop using
- *                 the SSL context for reading or writing, and either free it or
- *                 call \c mbedtls_ssl_session_reset() on it before re-using it
- *                 for a new connection; the current connection must be closed.
- */
-int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *ssl,
-                            unsigned char level,
-                            unsigned char message );
-/**
- * \brief          Notify the peer that the connection is being closed
- *
- * \param ssl      SSL context
- *
- * \return          0 if successful, or a specific SSL error code.
- *
- * \note           If this function returns something other than 0 or
- *                 MBEDTLS_ERR_SSL_WANT_READ/WRITE, you must stop using
- *                 the SSL context for reading or writing, and either free it or
- *                 call \c mbedtls_ssl_session_reset() on it before re-using it
- *                 for a new connection; the current connection must be closed.
- */
-int mbedtls_ssl_close_notify( mbedtls_ssl_context *ssl );
-
-/**
- * \brief          Free referenced items in an SSL context and clear memory
- *
- * \param ssl      SSL context
- */
-void mbedtls_ssl_free( mbedtls_ssl_context *ssl );
-
-/**
- * \brief          Initialize an SSL configuration context
- *                 Just makes the context ready for
- *                 mbedtls_ssl_config_defaults() or mbedtls_ssl_config_free().
- *
- * \note           You need to call mbedtls_ssl_config_defaults() unless you
- *                 manually set all of the relevant fields yourself.
- *
- * \param conf     SSL configuration context
- */
-void mbedtls_ssl_config_init( mbedtls_ssl_config *conf );
-
-/**
- * \brief          Load reasonnable default SSL configuration values.
- *                 (You need to call mbedtls_ssl_config_init() first.)
- *
- * \param conf     SSL configuration context
- * \param endpoint MBEDTLS_SSL_IS_CLIENT or MBEDTLS_SSL_IS_SERVER
- * \param transport MBEDTLS_SSL_TRANSPORT_STREAM for TLS, or
- *                  MBEDTLS_SSL_TRANSPORT_DATAGRAM for DTLS
- * \param preset   a MBEDTLS_SSL_PRESET_XXX value
- *
- * \note           See \c mbedtls_ssl_conf_transport() for notes on DTLS.
- *
- * \return         0 if successful, or
- *                 MBEDTLS_ERR_XXX_ALLOC_FAILED on memory allocation error.
- */
-int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf,
-                                 int endpoint, int transport, int preset );
-
-/**
- * \brief          Free an SSL configuration context
- *
- * \param conf     SSL configuration context
- */
-void mbedtls_ssl_config_free( mbedtls_ssl_config *conf );
-
-/**
- * \brief          Initialize SSL session structure
- *
- * \param session  SSL session
- */
-void mbedtls_ssl_session_init( mbedtls_ssl_session *session );
-
-/**
- * \brief          Free referenced items in an SSL session including the
- *                 peer certificate and clear memory
- *
- * \note           A session object can be freed even if the SSL context
- *                 that was used to retrieve the session is still in use.
- *
- * \param session  SSL session
- */
-void mbedtls_ssl_session_free( mbedtls_ssl_session *session );
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ssl.h */
diff --git a/include/mbedtls/ssl_cache.h b/include/mbedtls/ssl_cache.h
deleted file mode 100644
index 84254d3..0000000
--- a/include/mbedtls/ssl_cache.h
+++ /dev/null
@@ -1,151 +0,0 @@
-/**
- * \file ssl_cache.h
- *
- * \brief SSL session cache implementation
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_SSL_CACHE_H
-#define MBEDTLS_SSL_CACHE_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "ssl.h"
-
-#if defined(MBEDTLS_THREADING_C)
-#include "threading.h"
-#endif
-
-/**
- * \name SECTION: Module settings
- *
- * The configuration options you can set for this module are in this section.
- * Either change them in config.h or define them on the compiler command line.
- * \{
- */
-
-#if !defined(MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT)
-#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT       86400   /*!< 1 day  */
-#endif
-
-#if !defined(MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES)
-#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES      50   /*!< Maximum entries in cache */
-#endif
-
-/* \} name SECTION: Module settings */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct mbedtls_ssl_cache_context mbedtls_ssl_cache_context;
-typedef struct mbedtls_ssl_cache_entry mbedtls_ssl_cache_entry;
-
-/**
- * \brief   This structure is used for storing cache entries
- */
-struct mbedtls_ssl_cache_entry
-{
-#if defined(MBEDTLS_HAVE_TIME)
-    mbedtls_time_t timestamp;           /*!< entry timestamp    */
-#endif
-    mbedtls_ssl_session session;        /*!< entry session      */
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && \
-    defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    mbedtls_x509_buf peer_cert;         /*!< entry peer_cert    */
-#endif
-    mbedtls_ssl_cache_entry *next;      /*!< chain pointer      */
-};
-
-/**
- * \brief Cache context
- */
-struct mbedtls_ssl_cache_context
-{
-    mbedtls_ssl_cache_entry *chain;     /*!< start of the chain     */
-    int timeout;                /*!< cache entry timeout    */
-    int max_entries;            /*!< maximum entries        */
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_threading_mutex_t mutex;    /*!< mutex                  */
-#endif
-};
-
-/**
- * \brief          Initialize an SSL cache context
- *
- * \param cache    SSL cache context
- */
-void mbedtls_ssl_cache_init( mbedtls_ssl_cache_context *cache );
-
-/**
- * \brief          Cache get callback implementation
- *                 (Thread-safe if MBEDTLS_THREADING_C is enabled)
- *
- * \param data     SSL cache context
- * \param session  session to retrieve entry for
- */
-int mbedtls_ssl_cache_get( void *data, mbedtls_ssl_session *session );
-
-/**
- * \brief          Cache set callback implementation
- *                 (Thread-safe if MBEDTLS_THREADING_C is enabled)
- *
- * \param data     SSL cache context
- * \param session  session to store entry for
- */
-int mbedtls_ssl_cache_set( void *data, const mbedtls_ssl_session *session );
-
-#if defined(MBEDTLS_HAVE_TIME)
-/**
- * \brief          Set the cache timeout
- *                 (Default: MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT (1 day))
- *
- *                 A timeout of 0 indicates no timeout.
- *
- * \param cache    SSL cache context
- * \param timeout  cache entry timeout in seconds
- */
-void mbedtls_ssl_cache_set_timeout( mbedtls_ssl_cache_context *cache, int timeout );
-#endif /* MBEDTLS_HAVE_TIME */
-
-/**
- * \brief          Set the maximum number of cache entries
- *                 (Default: MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES (50))
- *
- * \param cache    SSL cache context
- * \param max      cache entry maximum
- */
-void mbedtls_ssl_cache_set_max_entries( mbedtls_ssl_cache_context *cache, int max );
-
-/**
- * \brief          Free referenced items in a cache context and clear memory
- *
- * \param cache    SSL cache context
- */
-void mbedtls_ssl_cache_free( mbedtls_ssl_cache_context *cache );
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ssl_cache.h */
diff --git a/include/mbedtls/ssl_ciphersuites.h b/include/mbedtls/ssl_ciphersuites.h
deleted file mode 100644
index 7126783..0000000
--- a/include/mbedtls/ssl_ciphersuites.h
+++ /dev/null
@@ -1,558 +0,0 @@
-/**
- * \file ssl_ciphersuites.h
- *
- * \brief SSL Ciphersuites for mbed TLS
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_SSL_CIPHERSUITES_H
-#define MBEDTLS_SSL_CIPHERSUITES_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "pk.h"
-#include "cipher.h"
-#include "md.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * Supported ciphersuites (Official IANA names)
- */
-#define MBEDTLS_TLS_RSA_WITH_NULL_MD5                    0x01   /**< Weak! */
-#define MBEDTLS_TLS_RSA_WITH_NULL_SHA                    0x02   /**< Weak! */
-
-#define MBEDTLS_TLS_RSA_WITH_RC4_128_MD5                 0x04
-#define MBEDTLS_TLS_RSA_WITH_RC4_128_SHA                 0x05
-#define MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA                 0x09   /**< Weak! Not in TLS 1.2 */
-
-#define MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA            0x0A
-
-#define MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA             0x15   /**< Weak! Not in TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA        0x16
-
-#define MBEDTLS_TLS_PSK_WITH_NULL_SHA                    0x2C   /**< Weak! */
-#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA                0x2D   /**< Weak! */
-#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA                0x2E   /**< Weak! */
-#define MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA             0x2F
-
-#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA         0x33
-#define MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA             0x35
-#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA         0x39
-
-#define MBEDTLS_TLS_RSA_WITH_NULL_SHA256                 0x3B   /**< Weak! */
-#define MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256          0x3C   /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256          0x3D   /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA        0x41
-#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA    0x45
-
-#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256      0x67   /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256      0x6B   /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA        0x84
-#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA    0x88
-
-#define MBEDTLS_TLS_PSK_WITH_RC4_128_SHA                 0x8A
-#define MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA            0x8B
-#define MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA             0x8C
-#define MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA             0x8D
-
-#define MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA             0x8E
-#define MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA        0x8F
-#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA         0x90
-#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA         0x91
-
-#define MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA             0x92
-#define MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA        0x93
-#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA         0x94
-#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA         0x95
-
-#define MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256          0x9C   /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384          0x9D   /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256      0x9E   /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384      0x9F   /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256          0xA8   /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384          0xA9   /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256      0xAA   /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384      0xAB   /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256      0xAC   /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384      0xAD   /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256          0xAE
-#define MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384          0xAF
-#define MBEDTLS_TLS_PSK_WITH_NULL_SHA256                 0xB0   /**< Weak! */
-#define MBEDTLS_TLS_PSK_WITH_NULL_SHA384                 0xB1   /**< Weak! */
-
-#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256      0xB2
-#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384      0xB3
-#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256             0xB4   /**< Weak! */
-#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384             0xB5   /**< Weak! */
-
-#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256      0xB6
-#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384      0xB7
-#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256             0xB8   /**< Weak! */
-#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384             0xB9   /**< Weak! */
-
-#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256     0xBA   /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xBE   /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256     0xC0   /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC4   /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA             0xC001 /**< Weak! */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA          0xC002 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA     0xC003 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA      0xC004 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA      0xC005 /**< Not in SSL3! */
-
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA            0xC006 /**< Weak! */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA         0xC007 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA    0xC008 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA     0xC009 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA     0xC00A /**< Not in SSL3! */
-
-#define MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA               0xC00B /**< Weak! */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA            0xC00C /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA       0xC00D /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA        0xC00E /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA        0xC00F /**< Not in SSL3! */
-
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA              0xC010 /**< Weak! */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA           0xC011 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA      0xC012 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA       0xC013 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA       0xC014 /**< Not in SSL3! */
-
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256  0xC023 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384  0xC024 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256   0xC025 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384   0xC026 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256    0xC027 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384    0xC028 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256     0xC029 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384     0xC02A /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256  0xC02B /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384  0xC02C /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256   0xC02D /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384   0xC02E /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256    0xC02F /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384    0xC030 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256     0xC031 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384     0xC032 /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA           0xC033 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA      0xC034 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA       0xC035 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA       0xC036 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256    0xC037 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384    0xC038 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA              0xC039 /**< Weak! No SSL3! */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256           0xC03A /**< Weak! No SSL3! */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384           0xC03B /**< Weak! No SSL3! */
-
-#define MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256         0xC03C /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384         0xC03D /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256     0xC044 /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384     0xC045 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 0xC048 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 0xC049 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256  0xC04A /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384  0xC04B /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256   0xC04C /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384   0xC04D /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256    0xC04E /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384    0xC04F /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256         0xC050 /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384         0xC051 /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256     0xC052 /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384     0xC053 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 0xC05C /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 0xC05D /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256  0xC05E /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384  0xC05F /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256   0xC060 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384   0xC061 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256    0xC062 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384    0xC063 /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256         0xC064 /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384         0xC065 /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256     0xC066 /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384     0xC067 /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256     0xC068 /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384     0xC069 /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256         0xC06A /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384         0xC06B /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256     0xC06C /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384     0xC06D /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256     0xC06E /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384     0xC06F /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256   0xC070 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384   0xC071 /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 0xC072 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 0xC073 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256  0xC074 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384  0xC075 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256   0xC076 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384   0xC077 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256    0xC078 /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384    0xC079 /**< Not in SSL3! */
-
-#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256         0xC07A /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384         0xC07B /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256     0xC07C /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384     0xC07D /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 0xC086 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 0xC087 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256  0xC088 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384  0xC089 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256   0xC08A /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384   0xC08B /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256    0xC08C /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384    0xC08D /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256       0xC08E /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384       0xC08F /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256   0xC090 /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384   0xC091 /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256   0xC092 /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384   0xC093 /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256       0xC094
-#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384       0xC095
-#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256   0xC096
-#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384   0xC097
-#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256   0xC098
-#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384   0xC099
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC09A /**< Not in SSL3! */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC09B /**< Not in SSL3! */
-
-#define MBEDTLS_TLS_RSA_WITH_AES_128_CCM                0xC09C  /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_WITH_AES_256_CCM                0xC09D  /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM            0xC09E  /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM            0xC09F  /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8              0xC0A0  /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8              0xC0A1  /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8          0xC0A2  /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8          0xC0A3  /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_AES_128_CCM                0xC0A4  /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_AES_256_CCM                0xC0A5  /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM            0xC0A6  /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM            0xC0A7  /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8              0xC0A8  /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8              0xC0A9  /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8          0xC0AA  /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8          0xC0AB  /**< TLS 1.2 */
-/* The last two are named with PSK_DHE in the RFC, which looks like a typo */
-
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM        0xC0AC  /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM        0xC0AD  /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8      0xC0AE  /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8      0xC0AF  /**< TLS 1.2 */
-
-#define MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8          0xC0FF  /**< experimental */
-
-/* RFC 7905 */
-#define MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256   0xCCA8 /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 0xCCA9 /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256     0xCCAA /**< TLS 1.2 */
-#define MBEDTLS_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256         0xCCAB /**< TLS 1.2 */
-#define MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256   0xCCAC /**< TLS 1.2 */
-#define MBEDTLS_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256     0xCCAD /**< TLS 1.2 */
-#define MBEDTLS_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256     0xCCAE /**< TLS 1.2 */
-
-/* Reminder: update mbedtls_ssl_premaster_secret when adding a new key exchange.
- * Reminder: update MBEDTLS_KEY_EXCHANGE__xxx below
- */
-typedef enum {
-    MBEDTLS_KEY_EXCHANGE_NONE = 0,
-    MBEDTLS_KEY_EXCHANGE_RSA,
-    MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-    MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-    MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-    MBEDTLS_KEY_EXCHANGE_PSK,
-    MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-    MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-    MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-    MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-    MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-    MBEDTLS_KEY_EXCHANGE_ECJPAKE,
-} mbedtls_key_exchange_type_t;
-
-/* Key exchanges using a certificate */
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)           || \
-    defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)       || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)     || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)   || \
-    defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)       || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)      || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-#define MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED
-#endif
-
-/* Key exchanges allowing client certificate requests */
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)           ||       \
-    defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)       ||       \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)      ||       \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)     ||       \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)    ||       \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
-#define MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED
-#endif
-
-/* Key exchanges involving server signature in ServerKeyExchange */
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)       || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)     || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
-#define MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED
-#endif
-
-/* Key exchanges using ECDH */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)      || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-#define MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED
-#endif
-
-/* Key exchanges that don't involve ephemeral keys */
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)           || \
-    defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)           || \
-    defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)       || \
-    defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED)
-#define MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED
-#endif
-
-/* Key exchanges that involve ephemeral keys */
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)       || \
-    defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)       || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)     || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)     || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)   || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-#define MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED
-#endif
-
-/* Key exchanges using a PSK */
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)           || \
-    defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)       || \
-    defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)       || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-#define MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED
-#endif
-
-/* Key exchanges using DHE */
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)       || \
-    defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-#define MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED
-#endif
-
-/* Key exchanges using ECDHE */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)     || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)   || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-#define MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED
-#endif
-
-typedef struct mbedtls_ssl_ciphersuite_t mbedtls_ssl_ciphersuite_t;
-
-#define MBEDTLS_CIPHERSUITE_WEAK       0x01    /**< Weak ciphersuite flag  */
-#define MBEDTLS_CIPHERSUITE_SHORT_TAG  0x02    /**< Short authentication tag,
-                                                     eg for CCM_8 */
-#define MBEDTLS_CIPHERSUITE_NODTLS     0x04    /**< Can't be used with DTLS */
-
-/**
- * \brief   This structure is used for storing ciphersuite information
- */
-struct mbedtls_ssl_ciphersuite_t
-{
-    int id;
-    const char * name;
-
-    mbedtls_cipher_type_t cipher;
-    mbedtls_md_type_t mac;
-    mbedtls_key_exchange_type_t key_exchange;
-
-    int min_major_ver;
-    int min_minor_ver;
-    int max_major_ver;
-    int max_minor_ver;
-
-    unsigned char flags;
-};
-
-const int *mbedtls_ssl_list_ciphersuites( void );
-
-const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_string( const char *ciphersuite_name );
-const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_id( int ciphersuite_id );
-
-#if defined(MBEDTLS_PK_C)
-mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_pk_alg( const mbedtls_ssl_ciphersuite_t *info );
-mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_alg( const mbedtls_ssl_ciphersuite_t *info );
-#endif
-
-int mbedtls_ssl_ciphersuite_uses_ec( const mbedtls_ssl_ciphersuite_t *info );
-int mbedtls_ssl_ciphersuite_uses_psk( const mbedtls_ssl_ciphersuite_t *info );
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED)
-static inline int mbedtls_ssl_ciphersuite_has_pfs( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_DHE_PSK:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
-        case MBEDTLS_KEY_EXCHANGE_ECJPAKE:
-            return( 1 );
-
-        default:
-            return( 0 );
-    }
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED)
-static inline int mbedtls_ssl_ciphersuite_no_pfs( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
-        case MBEDTLS_KEY_EXCHANGE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_PSK:
-        case MBEDTLS_KEY_EXCHANGE_RSA_PSK:
-            return( 1 );
-
-        default:
-            return( 0 );
-    }
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED)
-static inline int mbedtls_ssl_ciphersuite_uses_ecdh( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
-            return( 1 );
-
-        default:
-            return( 0 );
-    }
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED */
-
-static inline int mbedtls_ssl_ciphersuite_cert_req_allowed( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
-            return( 1 );
-
-        default:
-            return( 0 );
-    }
-}
-
-static inline int mbedtls_ssl_ciphersuite_uses_srv_cert( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_RSA_PSK:
-        case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
-            return( 1 );
-
-        default:
-            return( 0 );
-    }
-}
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED)
-static inline int mbedtls_ssl_ciphersuite_uses_dhe( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_DHE_PSK:
-            return( 1 );
-
-        default:
-            return( 0 );
-    }
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED) */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED)
-static inline int mbedtls_ssl_ciphersuite_uses_ecdhe( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK:
-            return( 1 );
-
-        default:
-            return( 0 );
-    }
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED) */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
-static inline int mbedtls_ssl_ciphersuite_uses_server_signature( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
-            return( 1 );
-
-        default:
-            return( 0 );
-    }
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ssl_ciphersuites.h */
diff --git a/include/mbedtls/ssl_cookie.h b/include/mbedtls/ssl_cookie.h
deleted file mode 100644
index e34760a..0000000
--- a/include/mbedtls/ssl_cookie.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/**
- * \file ssl_cookie.h
- *
- * \brief DTLS cookie callbacks implementation
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_SSL_COOKIE_H
-#define MBEDTLS_SSL_COOKIE_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "ssl.h"
-
-#if defined(MBEDTLS_THREADING_C)
-#include "threading.h"
-#endif
-
-/**
- * \name SECTION: Module settings
- *
- * The configuration options you can set for this module are in this section.
- * Either change them in config.h or define them on the compiler command line.
- * \{
- */
-#ifndef MBEDTLS_SSL_COOKIE_TIMEOUT
-#define MBEDTLS_SSL_COOKIE_TIMEOUT     60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */
-#endif
-
-/* \} name SECTION: Module settings */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \brief          Context for the default cookie functions.
- */
-typedef struct mbedtls_ssl_cookie_ctx
-{
-    mbedtls_md_context_t    hmac_ctx;   /*!< context for the HMAC portion   */
-#if !defined(MBEDTLS_HAVE_TIME)
-    unsigned long   serial;     /*!< serial number for expiration   */
-#endif
-    unsigned long   timeout;    /*!< timeout delay, in seconds if HAVE_TIME,
-                                     or in number of tickets issued */
-
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_threading_mutex_t mutex;
-#endif
-} mbedtls_ssl_cookie_ctx;
-
-/**
- * \brief          Initialize cookie context
- */
-void mbedtls_ssl_cookie_init( mbedtls_ssl_cookie_ctx *ctx );
-
-/**
- * \brief          Setup cookie context (generate keys)
- */
-int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx,
-                      int (*f_rng)(void *, unsigned char *, size_t),
-                      void *p_rng );
-
-/**
- * \brief          Set expiration delay for cookies
- *                 (Default MBEDTLS_SSL_COOKIE_TIMEOUT)
- *
- * \param ctx      Cookie contex
- * \param delay    Delay, in seconds if HAVE_TIME, or in number of cookies
- *                 issued in the meantime.
- *                 0 to disable expiration (NOT recommended)
- */
-void mbedtls_ssl_cookie_set_timeout( mbedtls_ssl_cookie_ctx *ctx, unsigned long delay );
-
-/**
- * \brief          Free cookie context
- */
-void mbedtls_ssl_cookie_free( mbedtls_ssl_cookie_ctx *ctx );
-
-/**
- * \brief          Generate cookie, see \c mbedtls_ssl_cookie_write_t
- */
-mbedtls_ssl_cookie_write_t mbedtls_ssl_cookie_write;
-
-/**
- * \brief          Verify cookie, see \c mbedtls_ssl_cookie_write_t
- */
-mbedtls_ssl_cookie_check_t mbedtls_ssl_cookie_check;
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ssl_cookie.h */
diff --git a/include/mbedtls/ssl_internal.h b/include/mbedtls/ssl_internal.h
deleted file mode 100644
index 5dde239..0000000
--- a/include/mbedtls/ssl_internal.h
+++ /dev/null
@@ -1,819 +0,0 @@
-/**
- * \file ssl_internal.h
- *
- * \brief Internal functions shared by the SSL modules
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_SSL_INTERNAL_H
-#define MBEDTLS_SSL_INTERNAL_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "ssl.h"
-#include "cipher.h"
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "psa/crypto.h"
-#endif
-
-#if defined(MBEDTLS_MD5_C)
-#include "md5.h"
-#endif
-
-#if defined(MBEDTLS_SHA1_C)
-#include "sha1.h"
-#endif
-
-#if defined(MBEDTLS_SHA256_C)
-#include "sha256.h"
-#endif
-
-#if defined(MBEDTLS_SHA512_C)
-#include "sha512.h"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-#include "ecjpake.h"
-#endif
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "psa/crypto.h"
-#include "psa_util.h"
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
-/* Determine minimum supported version */
-#define MBEDTLS_SSL_MIN_MAJOR_VERSION           MBEDTLS_SSL_MAJOR_VERSION_3
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-#define MBEDTLS_SSL_MIN_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_0
-#else
-#if defined(MBEDTLS_SSL_PROTO_TLS1)
-#define MBEDTLS_SSL_MIN_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_1
-#else
-#if defined(MBEDTLS_SSL_PROTO_TLS1_1)
-#define MBEDTLS_SSL_MIN_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_2
-#else
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#define MBEDTLS_SSL_MIN_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_3
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-#endif /* MBEDTLS_SSL_PROTO_TLS1_1 */
-#endif /* MBEDTLS_SSL_PROTO_TLS1   */
-#endif /* MBEDTLS_SSL_PROTO_SSL3   */
-
-#define MBEDTLS_SSL_MIN_VALID_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_1
-#define MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION MBEDTLS_SSL_MAJOR_VERSION_3
-
-/* Determine maximum supported version */
-#define MBEDTLS_SSL_MAX_MAJOR_VERSION           MBEDTLS_SSL_MAJOR_VERSION_3
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#define MBEDTLS_SSL_MAX_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_3
-#else
-#if defined(MBEDTLS_SSL_PROTO_TLS1_1)
-#define MBEDTLS_SSL_MAX_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_2
-#else
-#if defined(MBEDTLS_SSL_PROTO_TLS1)
-#define MBEDTLS_SSL_MAX_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_1
-#else
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-#define MBEDTLS_SSL_MAX_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_0
-#endif /* MBEDTLS_SSL_PROTO_SSL3   */
-#endif /* MBEDTLS_SSL_PROTO_TLS1   */
-#endif /* MBEDTLS_SSL_PROTO_TLS1_1 */
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-/* Shorthand for restartable ECC */
-#if defined(MBEDTLS_ECP_RESTARTABLE) && \
-    defined(MBEDTLS_SSL_CLI_C) && \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
-#define MBEDTLS_SSL__ECP_RESTARTABLE
-#endif
-
-#define MBEDTLS_SSL_INITIAL_HANDSHAKE           0
-#define MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS   1   /* In progress */
-#define MBEDTLS_SSL_RENEGOTIATION_DONE          2   /* Done or aborted */
-#define MBEDTLS_SSL_RENEGOTIATION_PENDING       3   /* Requested (server only) */
-
-/*
- * DTLS retransmission states, see RFC 6347 4.2.4
- *
- * The SENDING state is merged in PREPARING for initial sends,
- * but is distinct for resends.
- *
- * Note: initial state is wrong for server, but is not used anyway.
- */
-#define MBEDTLS_SSL_RETRANS_PREPARING       0
-#define MBEDTLS_SSL_RETRANS_SENDING         1
-#define MBEDTLS_SSL_RETRANS_WAITING         2
-#define MBEDTLS_SSL_RETRANS_FINISHED        3
-
-/*
- * Allow extra bytes for record, authentication and encryption overhead:
- * counter (8) + header (5) + IV(16) + MAC (16-48) + padding (0-256)
- * and allow for a maximum of 1024 of compression expansion if
- * enabled.
- */
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-#define MBEDTLS_SSL_COMPRESSION_ADD          1024
-#else
-#define MBEDTLS_SSL_COMPRESSION_ADD             0
-#endif
-
-#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_MODE_CBC)
-/* Ciphersuites using HMAC */
-#if defined(MBEDTLS_SHA512_C)
-#define MBEDTLS_SSL_MAC_ADD                 48  /* SHA-384 used for HMAC */
-#elif defined(MBEDTLS_SHA256_C)
-#define MBEDTLS_SSL_MAC_ADD                 32  /* SHA-256 used for HMAC */
-#else
-#define MBEDTLS_SSL_MAC_ADD                 20  /* SHA-1   used for HMAC */
-#endif
-#else
-/* AEAD ciphersuites: GCM and CCM use a 128 bits tag */
-#define MBEDTLS_SSL_MAC_ADD                 16
-#endif
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#define MBEDTLS_SSL_PADDING_ADD            256
-#else
-#define MBEDTLS_SSL_PADDING_ADD              0
-#endif
-
-#define MBEDTLS_SSL_PAYLOAD_OVERHEAD ( MBEDTLS_SSL_COMPRESSION_ADD +    \
-                                       MBEDTLS_MAX_IV_LENGTH +          \
-                                       MBEDTLS_SSL_MAC_ADD +            \
-                                       MBEDTLS_SSL_PADDING_ADD          \
-                                       )
-
-#define MBEDTLS_SSL_IN_PAYLOAD_LEN ( MBEDTLS_SSL_PAYLOAD_OVERHEAD + \
-                                     ( MBEDTLS_SSL_IN_CONTENT_LEN ) )
-
-#define MBEDTLS_SSL_OUT_PAYLOAD_LEN ( MBEDTLS_SSL_PAYLOAD_OVERHEAD + \
-                                      ( MBEDTLS_SSL_OUT_CONTENT_LEN ) )
-
-/* The maximum number of buffered handshake messages. */
-#define MBEDTLS_SSL_MAX_BUFFERED_HS 4
-
-/* Maximum length we can advertise as our max content length for
-   RFC 6066 max_fragment_length extension negotiation purposes
-   (the lesser of both sizes, if they are unequal.)
- */
-#define MBEDTLS_TLS_EXT_ADV_CONTENT_LEN (                            \
-        (MBEDTLS_SSL_IN_CONTENT_LEN > MBEDTLS_SSL_OUT_CONTENT_LEN)   \
-        ? ( MBEDTLS_SSL_OUT_CONTENT_LEN )                            \
-        : ( MBEDTLS_SSL_IN_CONTENT_LEN )                             \
-        )
-
-/*
- * Check that we obey the standard's message size bounds
- */
-
-#if MBEDTLS_SSL_MAX_CONTENT_LEN > 16384
-#error "Bad configuration - record content too large."
-#endif
-
-#if MBEDTLS_SSL_IN_CONTENT_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN
-#error "Bad configuration - incoming record content should not be larger than MBEDTLS_SSL_MAX_CONTENT_LEN."
-#endif
-
-#if MBEDTLS_SSL_OUT_CONTENT_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN
-#error "Bad configuration - outgoing record content should not be larger than MBEDTLS_SSL_MAX_CONTENT_LEN."
-#endif
-
-#if MBEDTLS_SSL_IN_PAYLOAD_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN + 2048
-#error "Bad configuration - incoming protected record payload too large."
-#endif
-
-#if MBEDTLS_SSL_OUT_PAYLOAD_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN + 2048
-#error "Bad configuration - outgoing protected record payload too large."
-#endif
-
-/* Calculate buffer sizes */
-
-/* Note: Even though the TLS record header is only 5 bytes
-   long, we're internally using 8 bytes to store the
-   implicit sequence number. */
-#define MBEDTLS_SSL_HEADER_LEN 13
-
-#define MBEDTLS_SSL_IN_BUFFER_LEN  \
-    ( ( MBEDTLS_SSL_HEADER_LEN ) + ( MBEDTLS_SSL_IN_PAYLOAD_LEN ) )
-
-#define MBEDTLS_SSL_OUT_BUFFER_LEN  \
-    ( ( MBEDTLS_SSL_HEADER_LEN ) + ( MBEDTLS_SSL_OUT_PAYLOAD_LEN ) )
-
-#ifdef MBEDTLS_ZLIB_SUPPORT
-/* Compression buffer holds both IN and OUT buffers, so should be size of the larger */
-#define MBEDTLS_SSL_COMPRESS_BUFFER_LEN (                               \
-        ( MBEDTLS_SSL_IN_BUFFER_LEN > MBEDTLS_SSL_OUT_BUFFER_LEN )      \
-        ? MBEDTLS_SSL_IN_BUFFER_LEN                                     \
-        : MBEDTLS_SSL_OUT_BUFFER_LEN                                    \
-        )
-#endif
-
-/*
- * TLS extension flags (for extensions with outgoing ServerHello content
- * that need it (e.g. for RENEGOTIATION_INFO the server already knows because
- * of state of the renegotiation flag, so no indicator is required)
- */
-#define MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT (1 << 0)
-#define MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK                 (1 << 1)
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-/*
- * Abstraction for a grid of allowed signature-hash-algorithm pairs.
- */
-struct mbedtls_ssl_sig_hash_set_t
-{
-    /* At the moment, we only need to remember a single suitable
-     * hash algorithm per signature algorithm. As long as that's
-     * the case - and we don't need a general lookup function -
-     * we can implement the sig-hash-set as a map from signatures
-     * to hash algorithms. */
-    mbedtls_md_type_t rsa;
-    mbedtls_md_type_t ecdsa;
-};
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
-          MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-/*
- * This structure contains the parameters only needed during handshake.
- */
-struct mbedtls_ssl_handshake_params
-{
-    /*
-     * Handshake specific crypto variables
-     */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-    mbedtls_ssl_sig_hash_set_t hash_algs;             /*!<  Set of suitable sig-hash pairs */
-#endif
-#if defined(MBEDTLS_DHM_C)
-    mbedtls_dhm_context dhm_ctx;                /*!<  DHM key exchange        */
-#endif
-#if defined(MBEDTLS_ECDH_C)
-    mbedtls_ecdh_context ecdh_ctx;              /*!<  ECDH key exchange       */
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_ecc_curve_t ecdh_psa_curve;
-    psa_key_handle_t ecdh_psa_privkey;
-    unsigned char ecdh_psa_peerkey[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH];
-    size_t ecdh_psa_peerkey_len;
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-#endif /* MBEDTLS_ECDH_C */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    mbedtls_ecjpake_context ecjpake_ctx;        /*!< EC J-PAKE key exchange */
-#if defined(MBEDTLS_SSL_CLI_C)
-    unsigned char *ecjpake_cache;               /*!< Cache for ClientHello ext */
-    size_t ecjpake_cache_len;                   /*!< Length of cached data */
-#endif
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    const mbedtls_ecp_curve_info **curves;      /*!<  Supported elliptic curves */
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_key_handle_t psk_opaque;        /*!< Opaque PSK from the callback   */
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    unsigned char *psk;                 /*!<  PSK from the callback         */
-    size_t psk_len;                     /*!<  Length of PSK from callback   */
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_ssl_key_cert *key_cert;     /*!< chosen key/cert pair (server)  */
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    int sni_authmode;                   /*!< authmode from SNI callback     */
-    mbedtls_ssl_key_cert *sni_key_cert; /*!< key/cert list from SNI         */
-    mbedtls_x509_crt *sni_ca_chain;     /*!< trusted CAs from SNI callback  */
-    mbedtls_x509_crl *sni_ca_crl;       /*!< trusted CAs CRLs from SNI      */
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    int ecrs_enabled;                   /*!< Handshake supports EC restart? */
-    mbedtls_x509_crt_restart_ctx ecrs_ctx;  /*!< restart context            */
-    enum { /* this complements ssl->state with info on intra-state operations */
-        ssl_ecrs_none = 0,              /*!< nothing going on (yet)         */
-        ssl_ecrs_crt_verify,            /*!< Certificate: crt_verify()      */
-        ssl_ecrs_ske_start_processing,  /*!< ServerKeyExchange: pk_verify() */
-        ssl_ecrs_cke_ecdh_calc_secret,  /*!< ClientKeyExchange: ECDH step 2 */
-        ssl_ecrs_crt_vrfy_sign,         /*!< CertificateVerify: pk_sign()   */
-    } ecrs_state;                       /*!< current (or last) operation    */
-    mbedtls_x509_crt *ecrs_peer_cert;   /*!< The peer's CRT chain.          */
-    size_t ecrs_n;                      /*!< place for saving a length      */
-#endif
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && \
-    !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    mbedtls_pk_context peer_pubkey;     /*!< The public key from the peer.  */
-#endif /* MBEDTLS_X509_CRT_PARSE_C && !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    unsigned int out_msg_seq;           /*!<  Outgoing handshake sequence number */
-    unsigned int in_msg_seq;            /*!<  Incoming handshake sequence number */
-
-    unsigned char *verify_cookie;       /*!<  Cli: HelloVerifyRequest cookie
-                                              Srv: unused                    */
-    unsigned char verify_cookie_len;    /*!<  Cli: cookie length
-                                              Srv: flag for sending a cookie */
-
-    uint32_t retransmit_timeout;        /*!<  Current value of timeout       */
-    unsigned char retransmit_state;     /*!<  Retransmission state           */
-    mbedtls_ssl_flight_item *flight;    /*!<  Current outgoing flight        */
-    mbedtls_ssl_flight_item *cur_msg;   /*!<  Current message in flight      */
-    unsigned char *cur_msg_p;           /*!<  Position in current message    */
-    unsigned int in_flight_start_seq;   /*!<  Minimum message sequence in the
-                                              flight being received          */
-    mbedtls_ssl_transform *alt_transform_out;   /*!<  Alternative transform for
-                                              resending messages             */
-    unsigned char alt_out_ctr[8];       /*!<  Alternative record epoch/counter
-                                              for resending messages         */
-
-    struct
-    {
-        size_t total_bytes_buffered; /*!< Cumulative size of heap allocated
-                                      *   buffers used for message buffering. */
-
-        uint8_t seen_ccs;               /*!< Indicates if a CCS message has
-                                         *   been seen in the current flight. */
-
-        struct mbedtls_ssl_hs_buffer
-        {
-            unsigned is_valid      : 1;
-            unsigned is_fragmented : 1;
-            unsigned is_complete   : 1;
-            unsigned char *data;
-            size_t data_len;
-        } hs[MBEDTLS_SSL_MAX_BUFFERED_HS];
-
-        struct
-        {
-            unsigned char *data;
-            size_t len;
-            unsigned epoch;
-        } future_record;
-
-    } buffering;
-
-    uint16_t mtu;                       /*!<  Handshake mtu, used to fragment outgoing messages */
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    /*
-     * Checksum contexts
-     */
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-       mbedtls_md5_context fin_md5;
-      mbedtls_sha1_context fin_sha1;
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_operation_t fin_sha256_psa;
-#else
-    mbedtls_sha256_context fin_sha256;
-#endif
-#endif
-#if defined(MBEDTLS_SHA512_C)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_operation_t fin_sha384_psa;
-#else
-    mbedtls_sha512_context fin_sha512;
-#endif
-#endif
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-    void (*update_checksum)(mbedtls_ssl_context *, const unsigned char *, size_t);
-    void (*calc_verify)(mbedtls_ssl_context *, unsigned char *);
-    void (*calc_finished)(mbedtls_ssl_context *, unsigned char *, int);
-    int  (*tls_prf)(const unsigned char *, size_t, const char *,
-                    const unsigned char *, size_t,
-                    unsigned char *, size_t);
-
-    size_t pmslen;                      /*!<  premaster length        */
-
-    unsigned char randbytes[64];        /*!<  random bytes            */
-    unsigned char premaster[MBEDTLS_PREMASTER_SIZE];
-                                        /*!<  premaster secret        */
-
-    int resume;                         /*!<  session resume indicator*/
-    int max_major_ver;                  /*!< max. major version client*/
-    int max_minor_ver;                  /*!< max. minor version client*/
-    int cli_exts;                       /*!< client extension presence*/
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    int new_session_ticket;             /*!< use NewSessionTicket?    */
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    int extended_ms;                    /*!< use Extended Master Secret? */
-#endif
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    unsigned int async_in_progress : 1; /*!< an asynchronous operation is in progress */
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    /** Asynchronous operation context. This field is meant for use by the
-     * asynchronous operation callbacks (mbedtls_ssl_config::f_async_sign_start,
-     * mbedtls_ssl_config::f_async_decrypt_start,
-     * mbedtls_ssl_config::f_async_resume, mbedtls_ssl_config::f_async_cancel).
-     * The library does not use it internally. */
-    void *user_async_ctx;
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-};
-
-typedef struct mbedtls_ssl_hs_buffer mbedtls_ssl_hs_buffer;
-
-/*
- * This structure contains a full set of runtime transform parameters
- * either in negotiation or active.
- */
-struct mbedtls_ssl_transform
-{
-    /*
-     * Session specific crypto layer
-     */
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
-                                        /*!<  Chosen cipersuite_info  */
-    unsigned int keylen;                /*!<  symmetric key length (bytes)  */
-    size_t minlen;                      /*!<  min. ciphertext length  */
-    size_t ivlen;                       /*!<  IV length               */
-    size_t fixed_ivlen;                 /*!<  Fixed part of IV (AEAD) */
-    size_t maclen;                      /*!<  MAC length              */
-
-    unsigned char iv_enc[16];           /*!<  IV (encryption)         */
-    unsigned char iv_dec[16];           /*!<  IV (decryption)         */
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    /* Needed only for SSL v3.0 secret */
-    unsigned char mac_enc[20];          /*!<  SSL v3.0 secret (enc)   */
-    unsigned char mac_dec[20];          /*!<  SSL v3.0 secret (dec)   */
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-
-    mbedtls_md_context_t md_ctx_enc;            /*!<  MAC (encryption)        */
-    mbedtls_md_context_t md_ctx_dec;            /*!<  MAC (decryption)        */
-
-    mbedtls_cipher_context_t cipher_ctx_enc;    /*!<  encryption context      */
-    mbedtls_cipher_context_t cipher_ctx_dec;    /*!<  decryption context      */
-
-    /*
-     * Session specific compression layer
-     */
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    z_stream ctx_deflate;               /*!<  compression context     */
-    z_stream ctx_inflate;               /*!<  decompression context   */
-#endif
-};
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/*
- * List of certificate + private key pairs
- */
-struct mbedtls_ssl_key_cert
-{
-    mbedtls_x509_crt *cert;                 /*!< cert                       */
-    mbedtls_pk_context *key;                /*!< private key                */
-    mbedtls_ssl_key_cert *next;             /*!< next key/cert pair         */
-};
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-/*
- * List of handshake messages kept around for resending
- */
-struct mbedtls_ssl_flight_item
-{
-    unsigned char *p;       /*!< message, including handshake headers   */
-    size_t len;             /*!< length of p                            */
-    unsigned char type;     /*!< type of the message: handshake or CCS  */
-    mbedtls_ssl_flight_item *next;  /*!< next handshake message(s)              */
-};
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-
-/* Find an entry in a signature-hash set matching a given hash algorithm. */
-mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find( mbedtls_ssl_sig_hash_set_t *set,
-                                                 mbedtls_pk_type_t sig_alg );
-/* Add a signature-hash-pair to a signature-hash set */
-void mbedtls_ssl_sig_hash_set_add( mbedtls_ssl_sig_hash_set_t *set,
-                                   mbedtls_pk_type_t sig_alg,
-                                   mbedtls_md_type_t md_alg );
-/* Allow exactly one hash algorithm for each signature. */
-void mbedtls_ssl_sig_hash_set_const_hash( mbedtls_ssl_sig_hash_set_t *set,
-                                          mbedtls_md_type_t md_alg );
-
-/* Setup an empty signature-hash set */
-static inline void mbedtls_ssl_sig_hash_set_init( mbedtls_ssl_sig_hash_set_t *set )
-{
-    mbedtls_ssl_sig_hash_set_const_hash( set, MBEDTLS_MD_NONE );
-}
-
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2) &&
-          MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-/**
- * \brief           Free referenced items in an SSL transform context and clear
- *                  memory
- *
- * \param transform SSL transform context
- */
-void mbedtls_ssl_transform_free( mbedtls_ssl_transform *transform );
-
-/**
- * \brief           Free referenced items in an SSL handshake context and clear
- *                  memory
- *
- * \param ssl       SSL context
- */
-void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl );
-
-int mbedtls_ssl_handshake_client_step( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_handshake_server_step( mbedtls_ssl_context *ssl );
-void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl );
-
-int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl );
-
-void mbedtls_ssl_reset_checksum( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl );
-
-int mbedtls_ssl_handle_message_type( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_prepare_handshake_record( mbedtls_ssl_context *ssl );
-void mbedtls_ssl_update_handshake_status( mbedtls_ssl_context *ssl );
-
-/**
- * \brief       Update record layer
- *
- *              This function roughly separates the implementation
- *              of the logic of (D)TLS from the implementation
- *              of the secure transport.
- *
- * \param  ssl              The SSL context to use.
- * \param  update_hs_digest This indicates if the handshake digest
- *                          should be automatically updated in case
- *                          a handshake message is found.
- *
- * \return      0 or non-zero error code.
- *
- * \note        A clarification on what is called 'record layer' here
- *              is in order, as many sensible definitions are possible:
- *
- *              The record layer takes as input an untrusted underlying
- *              transport (stream or datagram) and transforms it into
- *              a serially multiplexed, secure transport, which
- *              conceptually provides the following:
- *
- *              (1) Three datagram based, content-agnostic transports
- *                  for handshake, alert and CCS messages.
- *              (2) One stream- or datagram-based transport
- *                  for application data.
- *              (3) Functionality for changing the underlying transform
- *                  securing the contents.
- *
- *              The interface to this functionality is given as follows:
- *
- *              a Updating
- *                [Currently implemented by mbedtls_ssl_read_record]
- *
- *                Check if and on which of the four 'ports' data is pending:
- *                Nothing, a controlling datagram of type (1), or application
- *                data (2). In any case data is present, internal buffers
- *                provide access to the data for the user to process it.
- *                Consumption of type (1) datagrams is done automatically
- *                on the next update, invalidating that the internal buffers
- *                for previous datagrams, while consumption of application
- *                data (2) is user-controlled.
- *
- *              b Reading of application data
- *                [Currently manual adaption of ssl->in_offt pointer]
- *
- *                As mentioned in the last paragraph, consumption of data
- *                is different from the automatic consumption of control
- *                datagrams (1) because application data is treated as a stream.
- *
- *              c Tracking availability of application data
- *                [Currently manually through decreasing ssl->in_msglen]
- *
- *                For efficiency and to retain datagram semantics for
- *                application data in case of DTLS, the record layer
- *                provides functionality for checking how much application
- *                data is still available in the internal buffer.
- *
- *              d Changing the transformation securing the communication.
- *
- *              Given an opaque implementation of the record layer in the
- *              above sense, it should be possible to implement the logic
- *              of (D)TLS on top of it without the need to know anything
- *              about the record layer's internals. This is done e.g.
- *              in all the handshake handling functions, and in the
- *              application data reading function mbedtls_ssl_read.
- *
- * \note        The above tries to give a conceptual picture of the
- *              record layer, but the current implementation deviates
- *              from it in some places. For example, our implementation of
- *              the update functionality through mbedtls_ssl_read_record
- *              discards datagrams depending on the current state, which
- *              wouldn't fall under the record layer's responsibility
- *              following the above definition.
- *
- */
-int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl,
-                             unsigned update_hs_digest );
-int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want );
-
-int mbedtls_ssl_write_handshake_msg( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush );
-int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl );
-
-int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl );
-
-int mbedtls_ssl_parse_change_cipher_spec( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_write_change_cipher_spec( mbedtls_ssl_context *ssl );
-
-int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl );
-
-void mbedtls_ssl_optimize_checksum( mbedtls_ssl_context *ssl,
-                            const mbedtls_ssl_ciphersuite_t *ciphersuite_info );
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex );
-#endif
-
-#if defined(MBEDTLS_PK_C)
-unsigned char mbedtls_ssl_sig_from_pk( mbedtls_pk_context *pk );
-unsigned char mbedtls_ssl_sig_from_pk_alg( mbedtls_pk_type_t type );
-mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig );
-#endif
-
-mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash );
-unsigned char mbedtls_ssl_hash_from_md_alg( int md );
-int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md );
-
-#if defined(MBEDTLS_ECP_C)
-int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id );
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl,
-                                mbedtls_md_type_t md );
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-static inline mbedtls_pk_context *mbedtls_ssl_own_key( mbedtls_ssl_context *ssl )
-{
-    mbedtls_ssl_key_cert *key_cert;
-
-    if( ssl->handshake != NULL && ssl->handshake->key_cert != NULL )
-        key_cert = ssl->handshake->key_cert;
-    else
-        key_cert = ssl->conf->key_cert;
-
-    return( key_cert == NULL ? NULL : key_cert->key );
-}
-
-static inline mbedtls_x509_crt *mbedtls_ssl_own_cert( mbedtls_ssl_context *ssl )
-{
-    mbedtls_ssl_key_cert *key_cert;
-
-    if( ssl->handshake != NULL && ssl->handshake->key_cert != NULL )
-        key_cert = ssl->handshake->key_cert;
-    else
-        key_cert = ssl->conf->key_cert;
-
-    return( key_cert == NULL ? NULL : key_cert->cert );
-}
-
-/*
- * Check usage of a certificate wrt extensions:
- * keyUsage, extendedKeyUsage (later), and nSCertType (later).
- *
- * Warning: cert_endpoint is the endpoint of the cert (ie, of our peer when we
- * check a cert we received from them)!
- *
- * Return 0 if everything is OK, -1 if not.
- */
-int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert,
-                          const mbedtls_ssl_ciphersuite_t *ciphersuite,
-                          int cert_endpoint,
-                          uint32_t *flags );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-void mbedtls_ssl_write_version( int major, int minor, int transport,
-                        unsigned char ver[2] );
-void mbedtls_ssl_read_version( int *major, int *minor, int transport,
-                       const unsigned char ver[2] );
-
-static inline size_t mbedtls_ssl_hdr_len( const mbedtls_ssl_context *ssl )
-{
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        return( 13 );
-#else
-    ((void) ssl);
-#endif
-    return( 5 );
-}
-
-static inline size_t mbedtls_ssl_hs_hdr_len( const mbedtls_ssl_context *ssl )
-{
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        return( 12 );
-#else
-    ((void) ssl);
-#endif
-    return( 4 );
-}
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-void mbedtls_ssl_send_flight_completed( mbedtls_ssl_context *ssl );
-void mbedtls_ssl_recv_flight_completed( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_resend( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_flight_transmit( mbedtls_ssl_context *ssl );
-#endif
-
-/* Visible for testing purposes only */
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-int mbedtls_ssl_dtls_replay_check( mbedtls_ssl_context *ssl );
-void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl );
-#endif
-
-int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst,
-                              const mbedtls_ssl_session *src );
-
-/* constant-time buffer comparison */
-static inline int mbedtls_ssl_safer_memcmp( const void *a, const void *b, size_t n )
-{
-    size_t i;
-    volatile const unsigned char *A = (volatile const unsigned char *) a;
-    volatile const unsigned char *B = (volatile const unsigned char *) b;
-    volatile unsigned char diff = 0;
-
-    for( i = 0; i < n; i++ )
-    {
-        /* Read volatile data in order before computing diff.
-         * This avoids IAR compiler warning:
-         * 'the order of volatile accesses is undefined ..' */
-        unsigned char x = A[i], y = B[i];
-        diff |= x ^ y;
-    }
-
-    return( diff );
-}
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-int mbedtls_ssl_get_key_exchange_md_ssl_tls( mbedtls_ssl_context *ssl,
-                                        unsigned char *output,
-                                        unsigned char *data, size_t data_len );
-#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
-          MBEDTLS_SSL_PROTO_TLS1_1 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-/* The hash buffer must have at least MBEDTLS_MD_MAX_SIZE bytes of length. */
-int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
-                                            unsigned char *hash, size_t *hashlen,
-                                            unsigned char *data, size_t data_len,
-                                            mbedtls_md_type_t md_alg );
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
-          MBEDTLS_SSL_PROTO_TLS1_2 */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ssl_internal.h */
diff --git a/include/mbedtls/ssl_ticket.h b/include/mbedtls/ssl_ticket.h
deleted file mode 100644
index 774a007..0000000
--- a/include/mbedtls/ssl_ticket.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/**
- * \file ssl_ticket.h
- *
- * \brief TLS server ticket callbacks implementation
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_SSL_TICKET_H
-#define MBEDTLS_SSL_TICKET_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-/*
- * This implementation of the session ticket callbacks includes key
- * management, rotating the keys periodically in order to preserve forward
- * secrecy, when MBEDTLS_HAVE_TIME is defined.
- */
-
-#include "ssl.h"
-#include "cipher.h"
-
-#if defined(MBEDTLS_THREADING_C)
-#include "threading.h"
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \brief   Information for session ticket protection
- */
-typedef struct mbedtls_ssl_ticket_key
-{
-    unsigned char name[4];          /*!< random key identifier              */
-    uint32_t generation_time;       /*!< key generation timestamp (seconds) */
-    mbedtls_cipher_context_t ctx;   /*!< context for auth enc/decryption    */
-}
-mbedtls_ssl_ticket_key;
-
-/**
- * \brief   Context for session ticket handling functions
- */
-typedef struct mbedtls_ssl_ticket_context
-{
-    mbedtls_ssl_ticket_key keys[2]; /*!< ticket protection keys             */
-    unsigned char active;           /*!< index of the currently active key  */
-
-    uint32_t ticket_lifetime;       /*!< lifetime of tickets in seconds     */
-
-    /** Callback for getting (pseudo-)random numbers                        */
-    int  (*f_rng)(void *, unsigned char *, size_t);
-    void *p_rng;                    /*!< context for the RNG function       */
-
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_threading_mutex_t mutex;
-#endif
-}
-mbedtls_ssl_ticket_context;
-
-/**
- * \brief           Initialize a ticket context.
- *                  (Just make it ready for mbedtls_ssl_ticket_setup()
- *                  or mbedtls_ssl_ticket_free().)
- *
- * \param ctx       Context to be initialized
- */
-void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx );
-
-/**
- * \brief           Prepare context to be actually used
- *
- * \param ctx       Context to be set up
- * \param f_rng     RNG callback function
- * \param p_rng     RNG callback context
- * \param cipher    AEAD cipher to use for ticket protection.
- *                  Recommended value: MBEDTLS_CIPHER_AES_256_GCM.
- * \param lifetime  Tickets lifetime in seconds
- *                  Recommended value: 86400 (one day).
- *
- * \note            It is highly recommended to select a cipher that is at
- *                  least as strong as the the strongest ciphersuite
- *                  supported. Usually that means a 256-bit key.
- *
- * \note            The lifetime of the keys is twice the lifetime of tickets.
- *                  It is recommended to pick a reasonnable lifetime so as not
- *                  to negate the benefits of forward secrecy.
- *
- * \return          0 if successful,
- *                  or a specific MBEDTLS_ERR_XXX error code
- */
-int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx,
-    int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
-    mbedtls_cipher_type_t cipher,
-    uint32_t lifetime );
-
-/**
- * \brief           Implementation of the ticket write callback
- *
- * \note            See \c mbedtls_ssl_ticket_write_t for description
- */
-mbedtls_ssl_ticket_write_t mbedtls_ssl_ticket_write;
-
-/**
- * \brief           Implementation of the ticket parse callback
- *
- * \note            See \c mbedtls_ssl_ticket_parse_t for description
- */
-mbedtls_ssl_ticket_parse_t mbedtls_ssl_ticket_parse;
-
-/**
- * \brief           Free a context's content and zeroize it.
- *
- * \param ctx       Context to be cleaned up
- */
-void mbedtls_ssl_ticket_free( mbedtls_ssl_ticket_context *ctx );
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ssl_ticket.h */
diff --git a/include/mbedtls/x509.h b/include/mbedtls/x509.h
deleted file mode 100644
index b63e864..0000000
--- a/include/mbedtls/x509.h
+++ /dev/null
@@ -1,339 +0,0 @@
-/**
- * \file x509.h
- *
- * \brief X.509 generic defines and structures
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_X509_H
-#define MBEDTLS_X509_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "asn1.h"
-#include "pk.h"
-
-#if defined(MBEDTLS_RSA_C)
-#include "rsa.h"
-#endif
-
-/**
- * \addtogroup x509_module
- * \{
- */
-
-#if !defined(MBEDTLS_X509_MAX_INTERMEDIATE_CA)
-/**
- * Maximum number of intermediate CAs in a verification chain.
- * That is, maximum length of the chain, excluding the end-entity certificate
- * and the trusted root certificate.
- *
- * Set this to a low value to prevent an adversary from making you waste
- * resources verifying an overlong certificate chain.
- */
-#define MBEDTLS_X509_MAX_INTERMEDIATE_CA   8
-#endif
-
-/**
- * \name X509 Error codes
- * \{
- */
-#define MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE              -0x2080  /**< Unavailable feature, e.g. RSA hashing/encryption combination. */
-#define MBEDTLS_ERR_X509_UNKNOWN_OID                      -0x2100  /**< Requested OID is unknown. */
-#define MBEDTLS_ERR_X509_INVALID_FORMAT                   -0x2180  /**< The CRT/CRL/CSR format is invalid, e.g. different type expected. */
-#define MBEDTLS_ERR_X509_INVALID_VERSION                  -0x2200  /**< The CRT/CRL/CSR version element is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_SERIAL                   -0x2280  /**< The serial tag or value is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_ALG                      -0x2300  /**< The algorithm tag or value is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_NAME                     -0x2380  /**< The name tag or value is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_DATE                     -0x2400  /**< The date tag or value is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_SIGNATURE                -0x2480  /**< The signature tag or value invalid. */
-#define MBEDTLS_ERR_X509_INVALID_EXTENSIONS               -0x2500  /**< The extension tag or value is invalid. */
-#define MBEDTLS_ERR_X509_UNKNOWN_VERSION                  -0x2580  /**< CRT/CRL/CSR has an unsupported version number. */
-#define MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG                  -0x2600  /**< Signature algorithm (oid) is unsupported. */
-#define MBEDTLS_ERR_X509_SIG_MISMATCH                     -0x2680  /**< Signature algorithms do not match. (see \c ::mbedtls_x509_crt sig_oid) */
-#define MBEDTLS_ERR_X509_CERT_VERIFY_FAILED               -0x2700  /**< Certificate verification failed, e.g. CRL, CA or signature check failed. */
-#define MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT              -0x2780  /**< Format not recognized as DER or PEM. */
-#define MBEDTLS_ERR_X509_BAD_INPUT_DATA                   -0x2800  /**< Input invalid. */
-#define MBEDTLS_ERR_X509_ALLOC_FAILED                     -0x2880  /**< Allocation of memory failed. */
-#define MBEDTLS_ERR_X509_FILE_IO_ERROR                    -0x2900  /**< Read/write of file failed. */
-#define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL                 -0x2980  /**< Destination buffer is too small. */
-#define MBEDTLS_ERR_X509_FATAL_ERROR                      -0x3000  /**< A fatal error occurred, eg the chain is too long or the vrfy callback failed. */
-/* \} name */
-
-/**
- * \name X509 Verify codes
- * \{
- */
-/* Reminder: update x509_crt_verify_strings[] in library/x509_crt.c */
-#define MBEDTLS_X509_BADCERT_EXPIRED             0x01  /**< The certificate validity has expired. */
-#define MBEDTLS_X509_BADCERT_REVOKED             0x02  /**< The certificate has been revoked (is on a CRL). */
-#define MBEDTLS_X509_BADCERT_CN_MISMATCH         0x04  /**< The certificate Common Name (CN) does not match with the expected CN. */
-#define MBEDTLS_X509_BADCERT_NOT_TRUSTED         0x08  /**< The certificate is not correctly signed by the trusted CA. */
-#define MBEDTLS_X509_BADCRL_NOT_TRUSTED          0x10  /**< The CRL is not correctly signed by the trusted CA. */
-#define MBEDTLS_X509_BADCRL_EXPIRED              0x20  /**< The CRL is expired. */
-#define MBEDTLS_X509_BADCERT_MISSING             0x40  /**< Certificate was missing. */
-#define MBEDTLS_X509_BADCERT_SKIP_VERIFY         0x80  /**< Certificate verification was skipped. */
-#define MBEDTLS_X509_BADCERT_OTHER             0x0100  /**< Other reason (can be used by verify callback) */
-#define MBEDTLS_X509_BADCERT_FUTURE            0x0200  /**< The certificate validity starts in the future. */
-#define MBEDTLS_X509_BADCRL_FUTURE             0x0400  /**< The CRL is from the future */
-#define MBEDTLS_X509_BADCERT_KEY_USAGE         0x0800  /**< Usage does not match the keyUsage extension. */
-#define MBEDTLS_X509_BADCERT_EXT_KEY_USAGE     0x1000  /**< Usage does not match the extendedKeyUsage extension. */
-#define MBEDTLS_X509_BADCERT_NS_CERT_TYPE      0x2000  /**< Usage does not match the nsCertType extension. */
-#define MBEDTLS_X509_BADCERT_BAD_MD            0x4000  /**< The certificate is signed with an unacceptable hash. */
-#define MBEDTLS_X509_BADCERT_BAD_PK            0x8000  /**< The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA). */
-#define MBEDTLS_X509_BADCERT_BAD_KEY         0x010000  /**< The certificate is signed with an unacceptable key (eg bad curve, RSA too short). */
-#define MBEDTLS_X509_BADCRL_BAD_MD           0x020000  /**< The CRL is signed with an unacceptable hash. */
-#define MBEDTLS_X509_BADCRL_BAD_PK           0x040000  /**< The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA). */
-#define MBEDTLS_X509_BADCRL_BAD_KEY          0x080000  /**< The CRL is signed with an unacceptable key (eg bad curve, RSA too short). */
-
-/* \} name */
-/* \} addtogroup x509_module */
-
-/*
- * X.509 v3 Key Usage Extension flags
- * Reminder: update x509_info_key_usage() when adding new flags.
- */
-#define MBEDTLS_X509_KU_DIGITAL_SIGNATURE            (0x80)  /* bit 0 */
-#define MBEDTLS_X509_KU_NON_REPUDIATION              (0x40)  /* bit 1 */
-#define MBEDTLS_X509_KU_KEY_ENCIPHERMENT             (0x20)  /* bit 2 */
-#define MBEDTLS_X509_KU_DATA_ENCIPHERMENT            (0x10)  /* bit 3 */
-#define MBEDTLS_X509_KU_KEY_AGREEMENT                (0x08)  /* bit 4 */
-#define MBEDTLS_X509_KU_KEY_CERT_SIGN                (0x04)  /* bit 5 */
-#define MBEDTLS_X509_KU_CRL_SIGN                     (0x02)  /* bit 6 */
-#define MBEDTLS_X509_KU_ENCIPHER_ONLY                (0x01)  /* bit 7 */
-#define MBEDTLS_X509_KU_DECIPHER_ONLY              (0x8000)  /* bit 8 */
-
-/*
- * Netscape certificate types
- * (http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn3.html)
- */
-
-#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT         (0x80)  /* bit 0 */
-#define MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER         (0x40)  /* bit 1 */
-#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL              (0x20)  /* bit 2 */
-#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING     (0x10)  /* bit 3 */
-#define MBEDTLS_X509_NS_CERT_TYPE_RESERVED           (0x08)  /* bit 4 */
-#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CA             (0x04)  /* bit 5 */
-#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA           (0x02)  /* bit 6 */
-#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA  (0x01)  /* bit 7 */
-
-/*
- * X.509 extension types
- *
- * Comments refer to the status for using certificates. Status can be
- * different for writing certificates or reading CRLs or CSRs.
- *
- * Those are defined in oid.h as oid.c needs them in a data structure. Since
- * these were previously defined here, let's have aliases for compatibility.
- */
-#define MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_AUTHORITY_KEY_IDENTIFIER
-#define MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER   MBEDTLS_OID_X509_EXT_SUBJECT_KEY_IDENTIFIER
-#define MBEDTLS_X509_EXT_KEY_USAGE                MBEDTLS_OID_X509_EXT_KEY_USAGE
-#define MBEDTLS_X509_EXT_CERTIFICATE_POLICIES     MBEDTLS_OID_X509_EXT_CERTIFICATE_POLICIES
-#define MBEDTLS_X509_EXT_POLICY_MAPPINGS          MBEDTLS_OID_X509_EXT_POLICY_MAPPINGS
-#define MBEDTLS_X509_EXT_SUBJECT_ALT_NAME         MBEDTLS_OID_X509_EXT_SUBJECT_ALT_NAME         /* Supported (DNS) */
-#define MBEDTLS_X509_EXT_ISSUER_ALT_NAME          MBEDTLS_OID_X509_EXT_ISSUER_ALT_NAME
-#define MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS  MBEDTLS_OID_X509_EXT_SUBJECT_DIRECTORY_ATTRS
-#define MBEDTLS_X509_EXT_BASIC_CONSTRAINTS        MBEDTLS_OID_X509_EXT_BASIC_CONSTRAINTS        /* Supported */
-#define MBEDTLS_X509_EXT_NAME_CONSTRAINTS         MBEDTLS_OID_X509_EXT_NAME_CONSTRAINTS
-#define MBEDTLS_X509_EXT_POLICY_CONSTRAINTS       MBEDTLS_OID_X509_EXT_POLICY_CONSTRAINTS
-#define MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE       MBEDTLS_OID_X509_EXT_EXTENDED_KEY_USAGE
-#define MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS  MBEDTLS_OID_X509_EXT_CRL_DISTRIBUTION_POINTS
-#define MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY       MBEDTLS_OID_X509_EXT_INIHIBIT_ANYPOLICY
-#define MBEDTLS_X509_EXT_FRESHEST_CRL             MBEDTLS_OID_X509_EXT_FRESHEST_CRL
-#define MBEDTLS_X509_EXT_NS_CERT_TYPE             MBEDTLS_OID_X509_EXT_NS_CERT_TYPE
-
-/*
- * Storage format identifiers
- * Recognized formats: PEM and DER
- */
-#define MBEDTLS_X509_FORMAT_DER                 1
-#define MBEDTLS_X509_FORMAT_PEM                 2
-
-#define MBEDTLS_X509_MAX_DN_NAME_SIZE         256 /**< Maximum value size of a DN entry */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \addtogroup x509_module
- * \{ */
-
-/**
- * \name Structures for parsing X.509 certificates, CRLs and CSRs
- * \{
- */
-
-/**
- * Type-length-value structure that allows for ASN1 using DER.
- */
-typedef mbedtls_asn1_buf mbedtls_x509_buf;
-
-/**
- * Container for ASN1 bit strings.
- */
-typedef mbedtls_asn1_bitstring mbedtls_x509_bitstring;
-
-/**
- * Container for ASN1 named information objects.
- * It allows for Relative Distinguished Names (e.g. cn=localhost,ou=code,etc.).
- */
-typedef mbedtls_asn1_named_data mbedtls_x509_name;
-
-/**
- * Container for a sequence of ASN.1 items
- */
-typedef mbedtls_asn1_sequence mbedtls_x509_sequence;
-
-/** Container for date and time (precision in seconds). */
-typedef struct mbedtls_x509_time
-{
-    int year, mon, day;         /**< Date. */
-    int hour, min, sec;         /**< Time. */
-}
-mbedtls_x509_time;
-
-/** \} name Structures for parsing X.509 certificates, CRLs and CSRs */
-/** \} addtogroup x509_module */
-
-/**
- * \brief          Store the certificate DN in printable form into buf;
- *                 no more than size characters will be written.
- *
- * \param buf      Buffer to write to
- * \param size     Maximum size of buffer
- * \param dn       The X509 name to represent
- *
- * \return         The length of the string written (not including the
- *                 terminated nul byte), or a negative error code.
- */
-int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn );
-
-/**
- * \brief          Store the certificate serial in printable form into buf;
- *                 no more than size characters will be written.
- *
- * \param buf      Buffer to write to
- * \param size     Maximum size of buffer
- * \param serial   The X509 serial to represent
- *
- * \return         The length of the string written (not including the
- *                 terminated nul byte), or a negative error code.
- */
-int mbedtls_x509_serial_gets( char *buf, size_t size, const mbedtls_x509_buf *serial );
-
-/**
- * \brief          Check a given mbedtls_x509_time against the system time
- *                 and tell if it's in the past.
- *
- * \note           Intended usage is "if( is_past( valid_to ) ) ERROR".
- *                 Hence the return value of 1 if on internal errors.
- *
- * \param to       mbedtls_x509_time to check
- *
- * \return         1 if the given time is in the past or an error occurred,
- *                 0 otherwise.
- */
-int mbedtls_x509_time_is_past( const mbedtls_x509_time *to );
-
-/**
- * \brief          Check a given mbedtls_x509_time against the system time
- *                 and tell if it's in the future.
- *
- * \note           Intended usage is "if( is_future( valid_from ) ) ERROR".
- *                 Hence the return value of 1 if on internal errors.
- *
- * \param from     mbedtls_x509_time to check
- *
- * \return         1 if the given time is in the future or an error occurred,
- *                 0 otherwise.
- */
-int mbedtls_x509_time_is_future( const mbedtls_x509_time *from );
-
-#if defined(MBEDTLS_SELF_TEST)
-
-/**
- * \brief          Checkup routine
- *
- * \return         0 if successful, or 1 if the test failed
- */
-int mbedtls_x509_self_test( int verbose );
-
-#endif /* MBEDTLS_SELF_TEST */
-
-/*
- * Internal module functions. You probably do not want to use these unless you
- * know you do.
- */
-int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
-                   mbedtls_x509_name *cur );
-int mbedtls_x509_get_alg_null( unsigned char **p, const unsigned char *end,
-                       mbedtls_x509_buf *alg );
-int mbedtls_x509_get_alg( unsigned char **p, const unsigned char *end,
-                  mbedtls_x509_buf *alg, mbedtls_x509_buf *params );
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
-int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params,
-                                mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md,
-                                int *salt_len );
-#endif
-int mbedtls_x509_get_sig( unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig );
-int mbedtls_x509_get_sig_alg( const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params,
-                      mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg,
-                      void **sig_opts );
-int mbedtls_x509_get_time( unsigned char **p, const unsigned char *end,
-                   mbedtls_x509_time *t );
-int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end,
-                     mbedtls_x509_buf *serial );
-int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end,
-                  mbedtls_x509_buf *ext, int tag );
-int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid,
-                       mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg,
-                       const void *sig_opts );
-int mbedtls_x509_key_size_helper( char *buf, size_t buf_size, const char *name );
-int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name );
-int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
-                        int critical, const unsigned char *val,
-                        size_t val_len );
-int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start,
-                           mbedtls_asn1_named_data *first );
-int mbedtls_x509_write_names( unsigned char **p, unsigned char *start,
-                      mbedtls_asn1_named_data *first );
-int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start,
-                    const char *oid, size_t oid_len,
-                    unsigned char *sig, size_t size );
-
-#define MBEDTLS_X509_SAFE_SNPRINTF                          \
-    do {                                                    \
-        if( ret < 0 || (size_t) ret >= n )                  \
-            return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL );    \
-                                                            \
-        n -= (size_t) ret;                                  \
-        p += (size_t) ret;                                  \
-    } while( 0 )
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* x509.h */
diff --git a/include/mbedtls/x509_crl.h b/include/mbedtls/x509_crl.h
deleted file mode 100644
index fa838d6..0000000
--- a/include/mbedtls/x509_crl.h
+++ /dev/null
@@ -1,174 +0,0 @@
-/**
- * \file x509_crl.h
- *
- * \brief X.509 certificate revocation list parsing
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_X509_CRL_H
-#define MBEDTLS_X509_CRL_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "x509.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \addtogroup x509_module
- * \{ */
-
-/**
- * \name Structures and functions for parsing CRLs
- * \{
- */
-
-/**
- * Certificate revocation list entry.
- * Contains the CA-specific serial numbers and revocation dates.
- */
-typedef struct mbedtls_x509_crl_entry
-{
-    mbedtls_x509_buf raw;
-
-    mbedtls_x509_buf serial;
-
-    mbedtls_x509_time revocation_date;
-
-    mbedtls_x509_buf entry_ext;
-
-    struct mbedtls_x509_crl_entry *next;
-}
-mbedtls_x509_crl_entry;
-
-/**
- * Certificate revocation list structure.
- * Every CRL may have multiple entries.
- */
-typedef struct mbedtls_x509_crl
-{
-    mbedtls_x509_buf raw;           /**< The raw certificate data (DER). */
-    mbedtls_x509_buf tbs;           /**< The raw certificate body (DER). The part that is To Be Signed. */
-
-    int version;            /**< CRL version (1=v1, 2=v2) */
-    mbedtls_x509_buf sig_oid;       /**< CRL signature type identifier */
-
-    mbedtls_x509_buf issuer_raw;    /**< The raw issuer data (DER). */
-
-    mbedtls_x509_name issuer;       /**< The parsed issuer data (named information object). */
-
-    mbedtls_x509_time this_update;
-    mbedtls_x509_time next_update;
-
-    mbedtls_x509_crl_entry entry;   /**< The CRL entries containing the certificate revocation times for this CA. */
-
-    mbedtls_x509_buf crl_ext;
-
-    mbedtls_x509_buf sig_oid2;
-    mbedtls_x509_buf sig;
-    mbedtls_md_type_t sig_md;           /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */
-    mbedtls_pk_type_t sig_pk;           /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */
-    void *sig_opts;             /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */
-
-    struct mbedtls_x509_crl *next;
-}
-mbedtls_x509_crl;
-
-/**
- * \brief          Parse a DER-encoded CRL and append it to the chained list
- *
- * \param chain    points to the start of the chain
- * \param buf      buffer holding the CRL data in DER format
- * \param buflen   size of the buffer
- *                 (including the terminating null byte for PEM data)
- *
- * \return         0 if successful, or a specific X509 or PEM error code
- */
-int mbedtls_x509_crl_parse_der( mbedtls_x509_crl *chain,
-                        const unsigned char *buf, size_t buflen );
-/**
- * \brief          Parse one or more CRLs and append them to the chained list
- *
- * \note           Multiple CRLs are accepted only if using PEM format
- *
- * \param chain    points to the start of the chain
- * \param buf      buffer holding the CRL data in PEM or DER format
- * \param buflen   size of the buffer
- *                 (including the terminating null byte for PEM data)
- *
- * \return         0 if successful, or a specific X509 or PEM error code
- */
-int mbedtls_x509_crl_parse( mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen );
-
-#if defined(MBEDTLS_FS_IO)
-/**
- * \brief          Load one or more CRLs and append them to the chained list
- *
- * \note           Multiple CRLs are accepted only if using PEM format
- *
- * \param chain    points to the start of the chain
- * \param path     filename to read the CRLs from (in PEM or DER encoding)
- *
- * \return         0 if successful, or a specific X509 or PEM error code
- */
-int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path );
-#endif /* MBEDTLS_FS_IO */
-
-/**
- * \brief          Returns an informational string about the CRL.
- *
- * \param buf      Buffer to write to
- * \param size     Maximum size of buffer
- * \param prefix   A line prefix
- * \param crl      The X509 CRL to represent
- *
- * \return         The length of the string written (not including the
- *                 terminated nul byte), or a negative error code.
- */
-int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix,
-                   const mbedtls_x509_crl *crl );
-
-/**
- * \brief          Initialize a CRL (chain)
- *
- * \param crl      CRL chain to initialize
- */
-void mbedtls_x509_crl_init( mbedtls_x509_crl *crl );
-
-/**
- * \brief          Unallocate all CRL data
- *
- * \param crl      CRL chain to free
- */
-void mbedtls_x509_crl_free( mbedtls_x509_crl *crl );
-
-/* \} name */
-/* \} addtogroup x509_module */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* mbedtls_x509_crl.h */
diff --git a/include/mbedtls/x509_crt.h b/include/mbedtls/x509_crt.h
deleted file mode 100644
index eea2632..0000000
--- a/include/mbedtls/x509_crt.h
+++ /dev/null
@@ -1,921 +0,0 @@
-/**
- * \file x509_crt.h
- *
- * \brief X.509 certificate parsing and writing
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_X509_CRT_H
-#define MBEDTLS_X509_CRT_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "x509.h"
-#include "x509_crl.h"
-
-/**
- * \addtogroup x509_module
- * \{
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \name Structures and functions for parsing and writing X.509 certificates
- * \{
- */
-
-/**
- * Container for an X.509 certificate. The certificate may be chained.
- */
-typedef struct mbedtls_x509_crt
-{
-    int own_buffer;                     /**< Indicates if \c raw is owned
-                                         *   by the structure or not.        */
-    mbedtls_x509_buf raw;               /**< The raw certificate data (DER). */
-    mbedtls_x509_buf tbs;               /**< The raw certificate body (DER). The part that is To Be Signed. */
-
-    int version;                /**< The X.509 version. (1=v1, 2=v2, 3=v3) */
-    mbedtls_x509_buf serial;            /**< Unique id for certificate issued by a specific CA. */
-    mbedtls_x509_buf sig_oid;           /**< Signature algorithm, e.g. sha1RSA */
-
-    mbedtls_x509_buf issuer_raw;        /**< The raw issuer data (DER). Used for quick comparison. */
-    mbedtls_x509_buf subject_raw;       /**< The raw subject data (DER). Used for quick comparison. */
-
-    mbedtls_x509_name issuer;           /**< The parsed issuer data (named information object). */
-    mbedtls_x509_name subject;          /**< The parsed subject data (named information object). */
-
-    mbedtls_x509_time valid_from;       /**< Start time of certificate validity. */
-    mbedtls_x509_time valid_to;         /**< End time of certificate validity. */
-
-    mbedtls_x509_buf pk_raw;
-    mbedtls_pk_context pk;              /**< Container for the public key context. */
-
-    mbedtls_x509_buf issuer_id;         /**< Optional X.509 v2/v3 issuer unique identifier. */
-    mbedtls_x509_buf subject_id;        /**< Optional X.509 v2/v3 subject unique identifier. */
-    mbedtls_x509_buf v3_ext;            /**< Optional X.509 v3 extensions.  */
-    mbedtls_x509_sequence subject_alt_names;    /**< Optional list of Subject Alternative Names (Only dNSName supported). */
-
-    int ext_types;              /**< Bit string containing detected and parsed extensions */
-    int ca_istrue;              /**< Optional Basic Constraint extension value: 1 if this certificate belongs to a CA, 0 otherwise. */
-    int max_pathlen;            /**< Optional Basic Constraint extension value: The maximum path length to the root certificate. Path length is 1 higher than RFC 5280 'meaning', so 1+ */
-
-    unsigned int key_usage;     /**< Optional key usage extension value: See the values in x509.h */
-
-    mbedtls_x509_sequence ext_key_usage; /**< Optional list of extended key usage OIDs. */
-
-    unsigned char ns_cert_type; /**< Optional Netscape certificate type extension value: See the values in x509.h */
-
-    mbedtls_x509_buf sig;               /**< Signature: hash of the tbs part signed with the private key. */
-    mbedtls_md_type_t sig_md;           /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */
-    mbedtls_pk_type_t sig_pk;           /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */
-    void *sig_opts;             /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */
-
-    struct mbedtls_x509_crt *next;     /**< Next certificate in the CA-chain. */
-}
-mbedtls_x509_crt;
-
-/**
- * Build flag from an algorithm/curve identifier (pk, md, ecp)
- * Since 0 is always XXX_NONE, ignore it.
- */
-#define MBEDTLS_X509_ID_FLAG( id )   ( 1 << ( id - 1 ) )
-
-/**
- * Security profile for certificate verification.
- *
- * All lists are bitfields, built by ORing flags from MBEDTLS_X509_ID_FLAG().
- */
-typedef struct mbedtls_x509_crt_profile
-{
-    uint32_t allowed_mds;       /**< MDs for signatures         */
-    uint32_t allowed_pks;       /**< PK algs for signatures     */
-    uint32_t allowed_curves;    /**< Elliptic curves for ECDSA  */
-    uint32_t rsa_min_bitlen;    /**< Minimum size for RSA keys  */
-}
-mbedtls_x509_crt_profile;
-
-#define MBEDTLS_X509_CRT_VERSION_1              0
-#define MBEDTLS_X509_CRT_VERSION_2              1
-#define MBEDTLS_X509_CRT_VERSION_3              2
-
-#define MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN 32
-#define MBEDTLS_X509_RFC5280_UTC_TIME_LEN   15
-
-#if !defined( MBEDTLS_X509_MAX_FILE_PATH_LEN )
-#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512
-#endif
-
-/**
- * Container for writing a certificate (CRT)
- */
-typedef struct mbedtls_x509write_cert
-{
-    int version;
-    mbedtls_mpi serial;
-    mbedtls_pk_context *subject_key;
-    mbedtls_pk_context *issuer_key;
-    mbedtls_asn1_named_data *subject;
-    mbedtls_asn1_named_data *issuer;
-    mbedtls_md_type_t md_alg;
-    char not_before[MBEDTLS_X509_RFC5280_UTC_TIME_LEN + 1];
-    char not_after[MBEDTLS_X509_RFC5280_UTC_TIME_LEN + 1];
-    mbedtls_asn1_named_data *extensions;
-}
-mbedtls_x509write_cert;
-
-/**
- * Item in a verification chain: cert and flags for it
- */
-typedef struct {
-    mbedtls_x509_crt *crt;
-    uint32_t flags;
-} mbedtls_x509_crt_verify_chain_item;
-
-/**
- * Max size of verification chain: end-entity + intermediates + trusted root
- */
-#define MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE  ( MBEDTLS_X509_MAX_INTERMEDIATE_CA + 2 )
-
-/**
- * Verification chain as built by \c mbedtls_crt_verify_chain()
- */
-typedef struct
-{
-    mbedtls_x509_crt_verify_chain_item items[MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE];
-    unsigned len;
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    /* This stores the list of potential trusted signers obtained from
-     * the CA callback used for the CRT verification, if configured.
-     * We must track it somewhere because the callback passes its
-     * ownership to the caller. */
-    mbedtls_x509_crt *trust_ca_cb_result;
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-} mbedtls_x509_crt_verify_chain;
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-
-/**
- * \brief       Context for resuming X.509 verify operations
- */
-typedef struct
-{
-    /* for check_signature() */
-    mbedtls_pk_restart_ctx pk;
-
-    /* for find_parent_in() */
-    mbedtls_x509_crt *parent; /* non-null iff parent_in in progress */
-    mbedtls_x509_crt *fallback_parent;
-    int fallback_signature_is_good;
-
-    /* for find_parent() */
-    int parent_is_trusted; /* -1 if find_parent is not in progress */
-
-    /* for verify_chain() */
-    enum {
-        x509_crt_rs_none,
-        x509_crt_rs_find_parent,
-    } in_progress;  /* none if no operation is in progress */
-    int self_cnt;
-    mbedtls_x509_crt_verify_chain ver_chain;
-
-} mbedtls_x509_crt_restart_ctx;
-
-#else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
-
-/* Now we can declare functions that take a pointer to that */
-typedef void mbedtls_x509_crt_restart_ctx;
-
-#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/**
- * Default security profile. Should provide a good balance between security
- * and compatibility with current deployments.
- */
-extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_default;
-
-/**
- * Expected next default profile. Recommended for new deployments.
- * Currently targets a 128-bit security level, except for RSA-2048.
- */
-extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_next;
-
-/**
- * NSA Suite B profile.
- */
-extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_suiteb;
-
-/**
- * \brief          Parse a single DER formatted certificate and add it
- *                 to the end of the provided chained list.
- *
- * \param chain    The pointer to the start of the CRT chain to attach to.
- *                 When parsing the first CRT in a chain, this should point
- *                 to an instance of ::mbedtls_x509_crt initialized through
- *                 mbedtls_x509_crt_init().
- * \param buf      The buffer holding the DER encoded certificate.
- * \param buflen   The size in Bytes of \p buf.
- *
- * \note           This function makes an internal copy of the CRT buffer
- *                 \p buf. In particular, \p buf may be destroyed or reused
- *                 after this call returns. To avoid duplicating the CRT
- *                 buffer (at the cost of stricter lifetime constraints),
- *                 use mbedtls_x509_crt_parse_der_nocopy() instead.
- *
- * \return         \c 0 if successful.
- * \return         A negative error code on failure.
- */
-int mbedtls_x509_crt_parse_der( mbedtls_x509_crt *chain,
-                                const unsigned char *buf,
-                                size_t buflen );
-
-/**
- * \brief          Parse a single DER formatted certificate and add it
- *                 to the end of the provided chained list. This is a
- *                 variant of mbedtls_x509_crt_parse_der() which takes
- *                 temporary ownership of the CRT buffer until the CRT
- *                 is destroyed.
- *
- * \param chain    The pointer to the start of the CRT chain to attach to.
- *                 When parsing the first CRT in a chain, this should point
- *                 to an instance of ::mbedtls_x509_crt initialized through
- *                 mbedtls_x509_crt_init().
- * \param buf      The address of the readable buffer holding the DER encoded
- *                 certificate to use. On success, this buffer must be
- *                 retained and not be changed for the liftetime of the
- *                 CRT chain \p chain, that is, until \p chain is destroyed
- *                 through a call to mbedtls_x509_crt_free().
- * \param buflen   The size in Bytes of \p buf.
- *
- * \note           This call is functionally equivalent to
- *                 mbedtls_x509_crt_parse_der(), but it avoids creating a
- *                 copy of the input buffer at the cost of stronger lifetime
- *                 constraints. This is useful in constrained environments
- *                 where duplication of the CRT cannot be tolerated.
- *
- * \return         \c 0 if successful.
- * \return         A negative error code on failure.
- */
-int mbedtls_x509_crt_parse_der_nocopy( mbedtls_x509_crt *chain,
-                                       const unsigned char *buf,
-                                       size_t buflen );
-
-/**
- * \brief          Parse one DER-encoded or one or more concatenated PEM-encoded
- *                 certificates and add them to the chained list.
- *
- *                 For CRTs in PEM encoding, the function parses permissively:
- *                 if at least one certificate can be parsed, the function
- *                 returns the number of certificates for which parsing failed
- *                 (hence \c 0 if all certificates were parsed successfully).
- *                 If no certificate could be parsed, the function returns
- *                 the first (negative) error encountered during parsing.
- *
- *                 PEM encoded certificates may be interleaved by other data
- *                 such as human readable descriptions of their content, as
- *                 long as the certificates are enclosed in the PEM specific
- *                 '-----{BEGIN/END} CERTIFICATE-----' delimiters.
- *
- * \param chain    The chain to which to add the parsed certificates.
- * \param buf      The buffer holding the certificate data in PEM or DER format.
- *                 For certificates in PEM encoding, this may be a concatenation
- *                 of multiple certificates; for DER encoding, the buffer must
- *                 comprise exactly one certificate.
- * \param buflen   The size of \p buf, including the terminating \c NULL byte
- *                 in case of PEM encoded data.
- *
- * \return         \c 0 if all certificates were parsed successfully.
- * \return         The (positive) number of certificates that couldn't
- *                 be parsed if parsing was partly successful (see above).
- * \return         A negative X509 or PEM error code otherwise.
- *
- */
-int mbedtls_x509_crt_parse( mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen );
-
-#if defined(MBEDTLS_FS_IO)
-/**
- * \brief          Load one or more certificates and add them
- *                 to the chained list. Parses permissively. If some
- *                 certificates can be parsed, the result is the number
- *                 of failed certificates it encountered. If none complete
- *                 correctly, the first error is returned.
- *
- * \param chain    points to the start of the chain
- * \param path     filename to read the certificates from
- *
- * \return         0 if all certificates parsed successfully, a positive number
- *                 if partly successful or a specific X509 or PEM error code
- */
-int mbedtls_x509_crt_parse_file( mbedtls_x509_crt *chain, const char *path );
-
-/**
- * \brief          Load one or more certificate files from a path and add them
- *                 to the chained list. Parses permissively. If some
- *                 certificates can be parsed, the result is the number
- *                 of failed certificates it encountered. If none complete
- *                 correctly, the first error is returned.
- *
- * \param chain    points to the start of the chain
- * \param path     directory / folder to read the certificate files from
- *
- * \return         0 if all certificates parsed successfully, a positive number
- *                 if partly successful or a specific X509 or PEM error code
- */
-int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path );
-#endif /* MBEDTLS_FS_IO */
-
-/**
- * \brief          Returns an informational string about the
- *                 certificate.
- *
- * \param buf      Buffer to write to
- * \param size     Maximum size of buffer
- * \param prefix   A line prefix
- * \param crt      The X509 certificate to represent
- *
- * \return         The length of the string written (not including the
- *                 terminated nul byte), or a negative error code.
- */
-int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix,
-                   const mbedtls_x509_crt *crt );
-
-/**
- * \brief          Returns an informational string about the
- *                 verification status of a certificate.
- *
- * \param buf      Buffer to write to
- * \param size     Maximum size of buffer
- * \param prefix   A line prefix
- * \param flags    Verification flags created by mbedtls_x509_crt_verify()
- *
- * \return         The length of the string written (not including the
- *                 terminated nul byte), or a negative error code.
- */
-int mbedtls_x509_crt_verify_info( char *buf, size_t size, const char *prefix,
-                          uint32_t flags );
-
-/**
- * \brief          Verify a chain of certificates.
- *
- *                 The verify callback is a user-supplied callback that
- *                 can clear / modify / add flags for a certificate. If set,
- *                 the verification callback is called for each
- *                 certificate in the chain (from the trust-ca down to the
- *                 presented crt). The parameters for the callback are:
- *                 (void *parameter, mbedtls_x509_crt *crt, int certificate_depth,
- *                 int *flags). With the flags representing current flags for
- *                 that specific certificate and the certificate depth from
- *                 the bottom (Peer cert depth = 0).
- *
- *                 All flags left after returning from the callback
- *                 are also returned to the application. The function should
- *                 return 0 for anything (including invalid certificates)
- *                 other than fatal error, as a non-zero return code
- *                 immediately aborts the verification process. For fatal
- *                 errors, a specific error code should be used (different
- *                 from MBEDTLS_ERR_X509_CERT_VERIFY_FAILED which should not
- *                 be returned at this point), or MBEDTLS_ERR_X509_FATAL_ERROR
- *                 can be used if no better code is available.
- *
- * \note           In case verification failed, the results can be displayed
- *                 using \c mbedtls_x509_crt_verify_info()
- *
- * \note           Same as \c mbedtls_x509_crt_verify_with_profile() with the
- *                 default security profile.
- *
- * \note           It is your responsibility to provide up-to-date CRLs for
- *                 all trusted CAs. If no CRL is provided for the CA that was
- *                 used to sign the certificate, CRL verification is skipped
- *                 silently, that is *without* setting any flag.
- *
- * \note           The \c trust_ca list can contain two types of certificates:
- *                 (1) those of trusted root CAs, so that certificates
- *                 chaining up to those CAs will be trusted, and (2)
- *                 self-signed end-entity certificates to be trusted (for
- *                 specific peers you know) - in that case, the self-signed
- *                 certificate doesn't need to have the CA bit set.
- *
- * \param crt      The certificate chain to be verified.
- * \param trust_ca The list of trusted CAs.
- * \param ca_crl   The list of CRLs for trusted CAs.
- * \param cn       The expected Common Name. This may be \c NULL if the
- *                 CN need not be verified.
- * \param flags    The address at which to store the result of the verification.
- *                 If the verification couldn't be completed, the flag value is
- *                 set to (uint32_t) -1.
- * \param f_vrfy   The verification callback to use. See the documentation
- *                 of mbedtls_x509_crt_verify() for more information.
- * \param p_vrfy   The context to be passed to \p f_vrfy.
- *
- * \return         \c 0 if the chain is valid with respect to the
- *                 passed CN, CAs, CRLs and security profile.
- * \return         #MBEDTLS_ERR_X509_CERT_VERIFY_FAILED in case the
- *                 certificate chain verification failed. In this case,
- *                 \c *flags will have one or more
- *                 \c MBEDTLS_X509_BADCERT_XXX or \c MBEDTLS_X509_BADCRL_XXX
- *                 flags set.
- * \return         Another negative error code in case of a fatal error
- *                 encountered during the verification process.
- */
-int mbedtls_x509_crt_verify( mbedtls_x509_crt *crt,
-                     mbedtls_x509_crt *trust_ca,
-                     mbedtls_x509_crl *ca_crl,
-                     const char *cn, uint32_t *flags,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy );
-
-/**
- * \brief          Verify a chain of certificates with respect to
- *                 a configurable security profile.
- *
- * \note           Same as \c mbedtls_x509_crt_verify(), but with explicit
- *                 security profile.
- *
- * \note           The restrictions on keys (RSA minimum size, allowed curves
- *                 for ECDSA) apply to all certificates: trusted root,
- *                 intermediate CAs if any, and end entity certificate.
- *
- * \param crt      The certificate chain to be verified.
- * \param trust_ca The list of trusted CAs.
- * \param ca_crl   The list of CRLs for trusted CAs.
- * \param profile  The security profile to use for the verification.
- * \param cn       The expected Common Name. This may be \c NULL if the
- *                 CN need not be verified.
- * \param flags    The address at which to store the result of the verification.
- *                 If the verification couldn't be completed, the flag value is
- *                 set to (uint32_t) -1.
- * \param f_vrfy   The verification callback to use. See the documentation
- *                 of mbedtls_x509_crt_verify() for more information.
- * \param p_vrfy   The context to be passed to \p f_vrfy.
- *
- * \return         \c 0 if the chain is valid with respect to the
- *                 passed CN, CAs, CRLs and security profile.
- * \return         #MBEDTLS_ERR_X509_CERT_VERIFY_FAILED in case the
- *                 certificate chain verification failed. In this case,
- *                 \c *flags will have one or more
- *                 \c MBEDTLS_X509_BADCERT_XXX or \c MBEDTLS_X509_BADCRL_XXX
- *                 flags set.
- * \return         Another negative error code in case of a fatal error
- *                 encountered during the verification process.
- */
-int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt,
-                     mbedtls_x509_crt *trust_ca,
-                     mbedtls_x509_crl *ca_crl,
-                     const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy );
-
-/**
- * \brief          Restartable version of \c mbedtls_crt_verify_with_profile()
- *
- * \note           Performs the same job as \c mbedtls_crt_verify_with_profile()
- *                 but can return early and restart according to the limit
- *                 set with \c mbedtls_ecp_set_max_ops() to reduce blocking.
- *
- * \param crt      The certificate chain to be verified.
- * \param trust_ca The list of trusted CAs.
- * \param ca_crl   The list of CRLs for trusted CAs.
- * \param profile  The security profile to use for the verification.
- * \param cn       The expected Common Name. This may be \c NULL if the
- *                 CN need not be verified.
- * \param flags    The address at which to store the result of the verification.
- *                 If the verification couldn't be completed, the flag value is
- *                 set to (uint32_t) -1.
- * \param f_vrfy   The verification callback to use. See the documentation
- *                 of mbedtls_x509_crt_verify() for more information.
- * \param p_vrfy   The context to be passed to \p f_vrfy.
- * \param rs_ctx   The restart context to use. This may be set to \c NULL
- *                 to disable restartable ECC.
- *
- * \return         See \c mbedtls_crt_verify_with_profile(), or
- * \return         #MBEDTLS_ERR_ECP_IN_PROGRESS if maximum number of
- *                 operations was reached: see \c mbedtls_ecp_set_max_ops().
- */
-int mbedtls_x509_crt_verify_restartable( mbedtls_x509_crt *crt,
-                     mbedtls_x509_crt *trust_ca,
-                     mbedtls_x509_crl *ca_crl,
-                     const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy,
-                     mbedtls_x509_crt_restart_ctx *rs_ctx );
-
-/**
- * \brief               The type of trusted certificate callbacks.
- *
- *                      Callbacks of this type are passed to and used by the CRT
- *                      verification routine mbedtls_x509_crt_verify_with_ca_cb()
- *                      when looking for trusted signers of a given certificate.
- *
- *                      On success, the callback returns a list of trusted
- *                      certificates to be considered as potential signers
- *                      for the input certificate.
- *
- * \param p_ctx         An opaque context passed to the callback.
- * \param child         The certificate for which to search a potential signer.
- *                      This will point to a readable certificate.
- * \param candidate_cas The address at which to store the address of the first
- *                      entry in the generated linked list of candidate signers.
- *                      This will not be \c NULL.
- *
- * \note                The callback must only return a non-zero value on a
- *                      fatal error. If, in contrast, the search for a potential
- *                      signer completes without a single candidate, the
- *                      callback must return \c 0 and set \c *candidate_cas
- *                      to \c NULL.
- *
- * \return              \c 0 on success. In this case, \c *candidate_cas points
- *                      to a heap-allocated linked list of instances of
- *                      ::mbedtls_x509_crt, and ownership of this list is passed
- *                      to the caller.
- * \return              A negative error code on failure.
- */
-typedef int (*mbedtls_x509_crt_ca_cb_t)( void *p_ctx,
-                                         mbedtls_x509_crt const *child,
-                                         mbedtls_x509_crt **candidate_cas );
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-/**
- * \brief          Version of \c mbedtls_x509_crt_verify_with_profile() which
- *                 uses a callback to acquire the list of trusted CA
- *                 certificates.
- *
- * \param crt      The certificate chain to be verified.
- * \param f_ca_cb  The callback to be used to query for potential signers
- *                 of a given child certificate. See the documentation of
- *                 ::mbedtls_x509_crt_ca_cb_t for more information.
- * \param p_ca_cb  The opaque context to be passed to \p f_ca_cb.
- * \param profile  The security profile for the verification.
- * \param cn       The expected Common Name. This may be \c NULL if the
- *                 CN need not be verified.
- * \param flags    The address at which to store the result of the verification.
- *                 If the verification couldn't be completed, the flag value is
- *                 set to (uint32_t) -1.
- * \param f_vrfy   The verification callback to use. See the documentation
- *                 of mbedtls_x509_crt_verify() for more information.
- * \param p_vrfy   The context to be passed to \p f_vrfy.
- *
- * \return         See \c mbedtls_crt_verify_with_profile().
- */
-int mbedtls_x509_crt_verify_with_ca_cb( mbedtls_x509_crt *crt,
-                     mbedtls_x509_crt_ca_cb_t f_ca_cb,
-                     void *p_ca_cb,
-                     const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy );
-
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-
-#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
-/**
- * \brief          Check usage of certificate against keyUsage extension.
- *
- * \param crt      Leaf certificate used.
- * \param usage    Intended usage(s) (eg MBEDTLS_X509_KU_KEY_ENCIPHERMENT
- *                 before using the certificate to perform an RSA key
- *                 exchange).
- *
- * \note           Except for decipherOnly and encipherOnly, a bit set in the
- *                 usage argument means this bit MUST be set in the
- *                 certificate. For decipherOnly and encipherOnly, it means
- *                 that bit MAY be set.
- *
- * \return         0 is these uses of the certificate are allowed,
- *                 MBEDTLS_ERR_X509_BAD_INPUT_DATA if the keyUsage extension
- *                 is present but does not match the usage argument.
- *
- * \note           You should only call this function on leaf certificates, on
- *                 (intermediate) CAs the keyUsage extension is automatically
- *                 checked by \c mbedtls_x509_crt_verify().
- */
-int mbedtls_x509_crt_check_key_usage( const mbedtls_x509_crt *crt,
-                                      unsigned int usage );
-#endif /* MBEDTLS_X509_CHECK_KEY_USAGE) */
-
-#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
-/**
- * \brief           Check usage of certificate against extendedKeyUsage.
- *
- * \param crt       Leaf certificate used.
- * \param usage_oid Intended usage (eg MBEDTLS_OID_SERVER_AUTH or
- *                  MBEDTLS_OID_CLIENT_AUTH).
- * \param usage_len Length of usage_oid (eg given by MBEDTLS_OID_SIZE()).
- *
- * \return          0 if this use of the certificate is allowed,
- *                  MBEDTLS_ERR_X509_BAD_INPUT_DATA if not.
- *
- * \note            Usually only makes sense on leaf certificates.
- */
-int mbedtls_x509_crt_check_extended_key_usage( const mbedtls_x509_crt *crt,
-                                               const char *usage_oid,
-                                               size_t usage_len );
-#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */
-
-#if defined(MBEDTLS_X509_CRL_PARSE_C)
-/**
- * \brief          Verify the certificate revocation status
- *
- * \param crt      a certificate to be verified
- * \param crl      the CRL to verify against
- *
- * \return         1 if the certificate is revoked, 0 otherwise
- *
- */
-int mbedtls_x509_crt_is_revoked( const mbedtls_x509_crt *crt, const mbedtls_x509_crl *crl );
-#endif /* MBEDTLS_X509_CRL_PARSE_C */
-
-/**
- * \brief          Initialize a certificate (chain)
- *
- * \param crt      Certificate chain to initialize
- */
-void mbedtls_x509_crt_init( mbedtls_x509_crt *crt );
-
-/**
- * \brief          Unallocate all certificate data
- *
- * \param crt      Certificate chain to free
- */
-void mbedtls_x509_crt_free( mbedtls_x509_crt *crt );
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-/**
- * \brief           Initialize a restart context
- */
-void mbedtls_x509_crt_restart_init( mbedtls_x509_crt_restart_ctx *ctx );
-
-/**
- * \brief           Free the components of a restart context
- */
-void mbedtls_x509_crt_restart_free( mbedtls_x509_crt_restart_ctx *ctx );
-#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-/* \} name */
-/* \} addtogroup x509_module */
-
-#if defined(MBEDTLS_X509_CRT_WRITE_C)
-/**
- * \brief           Initialize a CRT writing context
- *
- * \param ctx       CRT context to initialize
- */
-void mbedtls_x509write_crt_init( mbedtls_x509write_cert *ctx );
-
-/**
- * \brief           Set the verion for a Certificate
- *                  Default: MBEDTLS_X509_CRT_VERSION_3
- *
- * \param ctx       CRT context to use
- * \param version   version to set (MBEDTLS_X509_CRT_VERSION_1, MBEDTLS_X509_CRT_VERSION_2 or
- *                                  MBEDTLS_X509_CRT_VERSION_3)
- */
-void mbedtls_x509write_crt_set_version( mbedtls_x509write_cert *ctx, int version );
-
-/**
- * \brief           Set the serial number for a Certificate.
- *
- * \param ctx       CRT context to use
- * \param serial    serial number to set
- *
- * \return          0 if successful
- */
-int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial );
-
-/**
- * \brief           Set the validity period for a Certificate
- *                  Timestamps should be in string format for UTC timezone
- *                  i.e. "YYYYMMDDhhmmss"
- *                  e.g. "20131231235959" for December 31st 2013
- *                       at 23:59:59
- *
- * \param ctx       CRT context to use
- * \param not_before    not_before timestamp
- * \param not_after     not_after timestamp
- *
- * \return          0 if timestamp was parsed successfully, or
- *                  a specific error code
- */
-int mbedtls_x509write_crt_set_validity( mbedtls_x509write_cert *ctx, const char *not_before,
-                                const char *not_after );
-
-/**
- * \brief           Set the issuer name for a Certificate
- *                  Issuer names should contain a comma-separated list
- *                  of OID types and values:
- *                  e.g. "C=UK,O=ARM,CN=mbed TLS CA"
- *
- * \param ctx           CRT context to use
- * \param issuer_name   issuer name to set
- *
- * \return          0 if issuer name was parsed successfully, or
- *                  a specific error code
- */
-int mbedtls_x509write_crt_set_issuer_name( mbedtls_x509write_cert *ctx,
-                                   const char *issuer_name );
-
-/**
- * \brief           Set the subject name for a Certificate
- *                  Subject names should contain a comma-separated list
- *                  of OID types and values:
- *                  e.g. "C=UK,O=ARM,CN=mbed TLS Server 1"
- *
- * \param ctx           CRT context to use
- * \param subject_name  subject name to set
- *
- * \return          0 if subject name was parsed successfully, or
- *                  a specific error code
- */
-int mbedtls_x509write_crt_set_subject_name( mbedtls_x509write_cert *ctx,
-                                    const char *subject_name );
-
-/**
- * \brief           Set the subject public key for the certificate
- *
- * \param ctx       CRT context to use
- * \param key       public key to include
- */
-void mbedtls_x509write_crt_set_subject_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key );
-
-/**
- * \brief           Set the issuer key used for signing the certificate
- *
- * \param ctx       CRT context to use
- * \param key       private key to sign with
- */
-void mbedtls_x509write_crt_set_issuer_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key );
-
-/**
- * \brief           Set the MD algorithm to use for the signature
- *                  (e.g. MBEDTLS_MD_SHA1)
- *
- * \param ctx       CRT context to use
- * \param md_alg    MD algorithm to use
- */
-void mbedtls_x509write_crt_set_md_alg( mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg );
-
-/**
- * \brief           Generic function to add to or replace an extension in the
- *                  CRT
- *
- * \param ctx       CRT context to use
- * \param oid       OID of the extension
- * \param oid_len   length of the OID
- * \param critical  if the extension is critical (per the RFC's definition)
- * \param val       value of the extension OCTET STRING
- * \param val_len   length of the value data
- *
- * \return          0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED
- */
-int mbedtls_x509write_crt_set_extension( mbedtls_x509write_cert *ctx,
-                                 const char *oid, size_t oid_len,
-                                 int critical,
-                                 const unsigned char *val, size_t val_len );
-
-/**
- * \brief           Set the basicConstraints extension for a CRT
- *
- * \param ctx       CRT context to use
- * \param is_ca     is this a CA certificate
- * \param max_pathlen   maximum length of certificate chains below this
- *                      certificate (only for CA certificates, -1 is
- *                      inlimited)
- *
- * \return          0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED
- */
-int mbedtls_x509write_crt_set_basic_constraints( mbedtls_x509write_cert *ctx,
-                                         int is_ca, int max_pathlen );
-
-#if defined(MBEDTLS_SHA1_C)
-/**
- * \brief           Set the subjectKeyIdentifier extension for a CRT
- *                  Requires that mbedtls_x509write_crt_set_subject_key() has been
- *                  called before
- *
- * \param ctx       CRT context to use
- *
- * \return          0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED
- */
-int mbedtls_x509write_crt_set_subject_key_identifier( mbedtls_x509write_cert *ctx );
-
-/**
- * \brief           Set the authorityKeyIdentifier extension for a CRT
- *                  Requires that mbedtls_x509write_crt_set_issuer_key() has been
- *                  called before
- *
- * \param ctx       CRT context to use
- *
- * \return          0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED
- */
-int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *ctx );
-#endif /* MBEDTLS_SHA1_C */
-
-/**
- * \brief           Set the Key Usage Extension flags
- *                  (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN)
- *
- * \param ctx       CRT context to use
- * \param key_usage key usage flags to set
- *
- * \return          0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED
- */
-int mbedtls_x509write_crt_set_key_usage( mbedtls_x509write_cert *ctx,
-                                         unsigned int key_usage );
-
-/**
- * \brief           Set the Netscape Cert Type flags
- *                  (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL)
- *
- * \param ctx           CRT context to use
- * \param ns_cert_type  Netscape Cert Type flags to set
- *
- * \return          0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED
- */
-int mbedtls_x509write_crt_set_ns_cert_type( mbedtls_x509write_cert *ctx,
-                                    unsigned char ns_cert_type );
-
-/**
- * \brief           Free the contents of a CRT write context
- *
- * \param ctx       CRT context to free
- */
-void mbedtls_x509write_crt_free( mbedtls_x509write_cert *ctx );
-
-/**
- * \brief           Write a built up certificate to a X509 DER structure
- *                  Note: data is written at the end of the buffer! Use the
- *                        return value to determine where you should start
- *                        using the buffer
- *
- * \param ctx       certificate to write away
- * \param buf       buffer to write to
- * \param size      size of the buffer
- * \param f_rng     RNG function (for signature, see note)
- * \param p_rng     RNG parameter
- *
- * \return          length of data written if successful, or a specific
- *                  error code
- *
- * \note            f_rng may be NULL if RSA is used for signature and the
- *                  signature is made offline (otherwise f_rng is desirable
- *                  for countermeasures against timing attacks).
- *                  ECDSA signatures always require a non-NULL f_rng.
- */
-int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng );
-
-#if defined(MBEDTLS_PEM_WRITE_C)
-/**
- * \brief           Write a built up certificate to a X509 PEM string
- *
- * \param ctx       certificate to write away
- * \param buf       buffer to write to
- * \param size      size of the buffer
- * \param f_rng     RNG function (for signature, see note)
- * \param p_rng     RNG parameter
- *
- * \return          0 if successful, or a specific error code
- *
- * \note            f_rng may be NULL if RSA is used for signature and the
- *                  signature is made offline (otherwise f_rng is desirable
- *                  for countermeasures against timing attacks).
- *                  ECDSA signatures always require a non-NULL f_rng.
- */
-int mbedtls_x509write_crt_pem( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng );
-#endif /* MBEDTLS_PEM_WRITE_C */
-#endif /* MBEDTLS_X509_CRT_WRITE_C */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* mbedtls_x509_crt.h */
diff --git a/include/mbedtls/x509_csr.h b/include/mbedtls/x509_csr.h
deleted file mode 100644
index a3c2804..0000000
--- a/include/mbedtls/x509_csr.h
+++ /dev/null
@@ -1,307 +0,0 @@
-/**
- * \file x509_csr.h
- *
- * \brief X.509 certificate signing request parsing and writing
- */
-/*
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-#ifndef MBEDTLS_X509_CSR_H
-#define MBEDTLS_X509_CSR_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "x509.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \addtogroup x509_module
- * \{ */
-
-/**
- * \name Structures and functions for X.509 Certificate Signing Requests (CSR)
- * \{
- */
-
-/**
- * Certificate Signing Request (CSR) structure.
- */
-typedef struct mbedtls_x509_csr
-{
-    mbedtls_x509_buf raw;           /**< The raw CSR data (DER). */
-    mbedtls_x509_buf cri;           /**< The raw CertificateRequestInfo body (DER). */
-
-    int version;            /**< CSR version (1=v1). */
-
-    mbedtls_x509_buf  subject_raw;  /**< The raw subject data (DER). */
-    mbedtls_x509_name subject;      /**< The parsed subject data (named information object). */
-
-    mbedtls_pk_context pk;          /**< Container for the public key context. */
-
-    mbedtls_x509_buf sig_oid;
-    mbedtls_x509_buf sig;
-    mbedtls_md_type_t sig_md;       /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */
-    mbedtls_pk_type_t sig_pk;       /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */
-    void *sig_opts;         /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */
-}
-mbedtls_x509_csr;
-
-/**
- * Container for writing a CSR
- */
-typedef struct mbedtls_x509write_csr
-{
-    mbedtls_pk_context *key;
-    mbedtls_asn1_named_data *subject;
-    mbedtls_md_type_t md_alg;
-    mbedtls_asn1_named_data *extensions;
-}
-mbedtls_x509write_csr;
-
-#if defined(MBEDTLS_X509_CSR_PARSE_C)
-/**
- * \brief          Load a Certificate Signing Request (CSR) in DER format
- *
- * \note           CSR attributes (if any) are currently silently ignored.
- *
- * \param csr      CSR context to fill
- * \param buf      buffer holding the CRL data
- * \param buflen   size of the buffer
- *
- * \return         0 if successful, or a specific X509 error code
- */
-int mbedtls_x509_csr_parse_der( mbedtls_x509_csr *csr,
-                        const unsigned char *buf, size_t buflen );
-
-/**
- * \brief          Load a Certificate Signing Request (CSR), DER or PEM format
- *
- * \note           See notes for \c mbedtls_x509_csr_parse_der()
- *
- * \param csr      CSR context to fill
- * \param buf      buffer holding the CRL data
- * \param buflen   size of the buffer
- *                 (including the terminating null byte for PEM data)
- *
- * \return         0 if successful, or a specific X509 or PEM error code
- */
-int mbedtls_x509_csr_parse( mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen );
-
-#if defined(MBEDTLS_FS_IO)
-/**
- * \brief          Load a Certificate Signing Request (CSR)
- *
- * \note           See notes for \c mbedtls_x509_csr_parse()
- *
- * \param csr      CSR context to fill
- * \param path     filename to read the CSR from
- *
- * \return         0 if successful, or a specific X509 or PEM error code
- */
-int mbedtls_x509_csr_parse_file( mbedtls_x509_csr *csr, const char *path );
-#endif /* MBEDTLS_FS_IO */
-
-/**
- * \brief          Returns an informational string about the
- *                 CSR.
- *
- * \param buf      Buffer to write to
- * \param size     Maximum size of buffer
- * \param prefix   A line prefix
- * \param csr      The X509 CSR to represent
- *
- * \return         The length of the string written (not including the
- *                 terminated nul byte), or a negative error code.
- */
-int mbedtls_x509_csr_info( char *buf, size_t size, const char *prefix,
-                   const mbedtls_x509_csr *csr );
-
-/**
- * \brief          Initialize a CSR
- *
- * \param csr      CSR to initialize
- */
-void mbedtls_x509_csr_init( mbedtls_x509_csr *csr );
-
-/**
- * \brief          Unallocate all CSR data
- *
- * \param csr      CSR to free
- */
-void mbedtls_x509_csr_free( mbedtls_x509_csr *csr );
-#endif /* MBEDTLS_X509_CSR_PARSE_C */
-
-/* \} name */
-/* \} addtogroup x509_module */
-
-#if defined(MBEDTLS_X509_CSR_WRITE_C)
-/**
- * \brief           Initialize a CSR context
- *
- * \param ctx       CSR context to initialize
- */
-void mbedtls_x509write_csr_init( mbedtls_x509write_csr *ctx );
-
-/**
- * \brief           Set the subject name for a CSR
- *                  Subject names should contain a comma-separated list
- *                  of OID types and values:
- *                  e.g. "C=UK,O=ARM,CN=mbed TLS Server 1"
- *
- * \param ctx           CSR context to use
- * \param subject_name  subject name to set
- *
- * \return          0 if subject name was parsed successfully, or
- *                  a specific error code
- */
-int mbedtls_x509write_csr_set_subject_name( mbedtls_x509write_csr *ctx,
-                                    const char *subject_name );
-
-/**
- * \brief           Set the key for a CSR (public key will be included,
- *                  private key used to sign the CSR when writing it)
- *
- * \param ctx       CSR context to use
- * \param key       Asymetric key to include
- */
-void mbedtls_x509write_csr_set_key( mbedtls_x509write_csr *ctx, mbedtls_pk_context *key );
-
-/**
- * \brief           Set the MD algorithm to use for the signature
- *                  (e.g. MBEDTLS_MD_SHA1)
- *
- * \param ctx       CSR context to use
- * \param md_alg    MD algorithm to use
- */
-void mbedtls_x509write_csr_set_md_alg( mbedtls_x509write_csr *ctx, mbedtls_md_type_t md_alg );
-
-/**
- * \brief           Set the Key Usage Extension flags
- *                  (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN)
- *
- * \param ctx       CSR context to use
- * \param key_usage key usage flags to set
- *
- * \return          0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED
- *
- * \note            The <code>decipherOnly</code> flag from the Key Usage
- *                  extension is represented by bit 8 (i.e.
- *                  <code>0x8000</code>), which cannot typically be represented
- *                  in an unsigned char. Therefore, the flag
- *                  <code>decipherOnly</code> (i.e.
- *                  #MBEDTLS_X509_KU_DECIPHER_ONLY) cannot be set using this
- *                  function.
- */
-int mbedtls_x509write_csr_set_key_usage( mbedtls_x509write_csr *ctx, unsigned char key_usage );
-
-/**
- * \brief           Set the Netscape Cert Type flags
- *                  (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL)
- *
- * \param ctx           CSR context to use
- * \param ns_cert_type  Netscape Cert Type flags to set
- *
- * \return          0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED
- */
-int mbedtls_x509write_csr_set_ns_cert_type( mbedtls_x509write_csr *ctx,
-                                    unsigned char ns_cert_type );
-
-/**
- * \brief           Generic function to add to or replace an extension in the
- *                  CSR
- *
- * \param ctx       CSR context to use
- * \param oid       OID of the extension
- * \param oid_len   length of the OID
- * \param val       value of the extension OCTET STRING
- * \param val_len   length of the value data
- *
- * \return          0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED
- */
-int mbedtls_x509write_csr_set_extension( mbedtls_x509write_csr *ctx,
-                                 const char *oid, size_t oid_len,
-                                 const unsigned char *val, size_t val_len );
-
-/**
- * \brief           Free the contents of a CSR context
- *
- * \param ctx       CSR context to free
- */
-void mbedtls_x509write_csr_free( mbedtls_x509write_csr *ctx );
-
-/**
- * \brief           Write a CSR (Certificate Signing Request) to a
- *                  DER structure
- *                  Note: data is written at the end of the buffer! Use the
- *                        return value to determine where you should start
- *                        using the buffer
- *
- * \param ctx       CSR to write away
- * \param buf       buffer to write to
- * \param size      size of the buffer
- * \param f_rng     RNG function (for signature, see note)
- * \param p_rng     RNG parameter
- *
- * \return          length of data written if successful, or a specific
- *                  error code
- *
- * \note            f_rng may be NULL if RSA is used for signature and the
- *                  signature is made offline (otherwise f_rng is desirable
- *                  for countermeasures against timing attacks).
- *                  ECDSA signatures always require a non-NULL f_rng.
- */
-int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng );
-
-#if defined(MBEDTLS_PEM_WRITE_C)
-/**
- * \brief           Write a CSR (Certificate Signing Request) to a
- *                  PEM string
- *
- * \param ctx       CSR to write away
- * \param buf       buffer to write to
- * \param size      size of the buffer
- * \param f_rng     RNG function (for signature, see note)
- * \param p_rng     RNG parameter
- *
- * \return          0 if successful, or a specific error code
- *
- * \note            f_rng may be NULL if RSA is used for signature and the
- *                  signature is made offline (otherwise f_rng is desirable
- *                  for countermeasures against timing attacks).
- *                  ECDSA signatures always require a non-NULL f_rng.
- */
-int mbedtls_x509write_csr_pem( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng );
-#endif /* MBEDTLS_PEM_WRITE_C */
-#endif /* MBEDTLS_X509_CSR_WRITE_C */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* mbedtls_x509_csr.h */
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 9039216..61bc13d 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -29,7 +29,6 @@
     ecp_curves.c
     entropy.c
     entropy_poll.c
-    error.c
     gcm.c
     havege.c
     hkdf.c
@@ -65,34 +64,26 @@
     sha512.c
     threading.c
     timing.c
-    version.c
-    version_features.c
     xtea.c
 )
 
-set(src_x509
-    certs.c
-    pkcs11.c
-    x509.c
-    x509_create.c
-    x509_crl.c
-    x509_crt.c
-    x509_csr.c
-    x509write_crt.c
-    x509write_csr.c
+# For files generated by the parent project (Mbed TLS) when building Mbed
+# Crypto as a submodule, ensure that the parent project instance is used.
+if(USE_CRYPTO_SUBMODULE)
+set(src_crypto
+    ${src_crypto}
+    ${CMAKE_SOURCE_DIR}/library/version.c
+    ${CMAKE_SOURCE_DIR}/library/version_features.c
+    ${CMAKE_SOURCE_DIR}/library/error.c
 )
-
-set(src_tls
-    debug.c
-    net_sockets.c
-    ssl_cache.c
-    ssl_ciphersuites.c
-    ssl_cli.c
-    ssl_cookie.c
-    ssl_srv.c
-    ssl_ticket.c
-    ssl_tls.c
+else()
+set(src_crypto
+    ${src_crypto}
+    version.c
+    version_features.c
+    error.c
 )
+endif()
 
 if(CMAKE_COMPILER_IS_GNUCC)
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wmissing-declarations -Wmissing-prototypes")
@@ -123,14 +114,6 @@
     set(libs ${libs} network)
 endif(HAIKU)
 
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
-if(ENABLE_ZLIB_SUPPORT)
-    set(libs ${libs} ${ZLIB_LIBRARIES})
-endif(ENABLE_ZLIB_SUPPORT)
-
 if(LINK_WITH_PTHREAD)
     set(libs ${libs} pthread)
 endif()
@@ -140,12 +123,8 @@
 endif(NOT USE_STATIC_MBEDTLS_LIBRARY AND NOT USE_SHARED_MBEDTLS_LIBRARY)
 
 if(USE_STATIC_MBEDTLS_LIBRARY AND USE_SHARED_MBEDTLS_LIBRARY)
-    set(mbedtls_static_target "mbedtls_static")
-    set(mbedx509_static_target "mbedx509_static")
     set(mbedcrypto_static_target "mbedcrypto_static")
 elseif(USE_STATIC_MBEDTLS_LIBRARY)
-    set(mbedtls_static_target "mbedtls")
-    set(mbedx509_static_target "mbedx509")
     set(mbedcrypto_static_target "mbedcrypto")
 endif()
 
@@ -157,23 +136,9 @@
         PUBLIC ${CMAKE_SOURCE_DIR}/include/
         PUBLIC ${CMAKE_SOURCE_DIR}/crypto/include/)
 
-    if(USE_CRYPTO_SUBMODULE)
-        install(TARGETS ${mbedcrypto_static_target}
-                DESTINATION ${LIB_INSTALL_DIR}
-                PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
-    else()
-        add_library(${mbedx509_static_target} STATIC ${src_x509})
-        set_target_properties(${mbedx509_static_target} PROPERTIES OUTPUT_NAME mbedx509)
-        target_link_libraries(${mbedx509_static_target} ${libs} ${mbedcrypto_static_target})
-
-        add_library(${mbedtls_static_target} STATIC ${src_tls})
-        set_target_properties(${mbedtls_static_target} PROPERTIES OUTPUT_NAME mbedtls)
-        target_link_libraries(${mbedtls_static_target} ${libs} ${mbedx509_static_target})
-
-        install(TARGETS ${mbedtls_static_target} ${mbedx509_static_target} ${mbedcrypto_static_target}
-                DESTINATION ${LIB_INSTALL_DIR}
-                PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
-    endif()
+    install(TARGETS ${mbedcrypto_static_target}
+            DESTINATION ${LIB_INSTALL_DIR}
+            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
 endif(USE_STATIC_MBEDTLS_LIBRARY)
 
 if(USE_SHARED_MBEDTLS_LIBRARY)
@@ -184,23 +149,9 @@
         PUBLIC ${CMAKE_SOURCE_DIR}/include/
         PUBLIC ${CMAKE_SOURCE_DIR}/crypto/include/)
 
-    if(USE_CRYPTO_SUBMODULE)
-        install(TARGETS mbedcrypto
-                DESTINATION ${LIB_INSTALL_DIR}
-                PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
-    else()
-        add_library(mbedx509 SHARED ${src_x509})
-        set_target_properties(mbedx509 PROPERTIES VERSION 2.16.0 SOVERSION 0)
-        target_link_libraries(mbedx509 ${libs} mbedcrypto)
-
-        add_library(mbedtls SHARED ${src_tls})
-        set_target_properties(mbedtls PROPERTIES VERSION 2.16.0 SOVERSION 12)
-        target_link_libraries(mbedtls ${libs} mbedx509)
-
-        install(TARGETS mbedtls mbedx509 mbedcrypto
-                DESTINATION ${LIB_INSTALL_DIR}
-                PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
-    endif()
+    install(TARGETS mbedcrypto
+            DESTINATION ${LIB_INSTALL_DIR}
+            PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
 endif(USE_SHARED_MBEDTLS_LIBRARY)
 
 if(USE_CRYPTO_SUBMODULE)
@@ -209,8 +160,8 @@
         add_dependencies(crypto_lib mbedcrypto_static)
     endif()
 else()
-    add_custom_target(lib DEPENDS mbedcrypto mbedx509 mbedtls)
+    add_custom_target(lib DEPENDS mbedcrypto)
     if(USE_STATIC_MBEDTLS_LIBRARY AND USE_SHARED_MBEDTLS_LIBRARY)
-        add_dependencies(lib mbedcrypto_static mbedx509_static mbedtls_static)
+        add_dependencies(lib mbedcrypto_static)
     endif()
 endif()
diff --git a/library/Makefile b/library/Makefile
index 6ed5e68..30bc96f 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -36,8 +36,6 @@
 endif
 endif
 
-SOEXT_TLS=so.12
-SOEXT_X509=so.0
 SOEXT_CRYPTO=so.3
 
 # Set AR_DASH= (empty string) to use an ar implementation that does not accept
@@ -73,7 +71,7 @@
 		dhm.o		ecdh.o		ecdsa.o		\
 		ecjpake.o	ecp.o				\
 		ecp_curves.o	entropy.o	entropy_poll.o	\
-		error.o		gcm.o		havege.o	\
+		gcm.o		havege.o			\
 		hkdf.o						\
 		hmac_drbg.o	md.o		md2.o		\
 		md4.o		md5.o		md_wrap.o	\
@@ -88,18 +86,20 @@
 		psa_its_file.o					\
 		ripemd160.o	rsa_internal.o	rsa.o  		\
 		sha1.o		sha256.o	sha512.o	\
-		threading.o	timing.o	version.o	\
-		version_features.o		xtea.o
+		threading.o	timing.o			\
+		xtea.o
 
-OBJS_X509=	certs.o		pkcs11.o	x509.o		\
-		x509_create.o	x509_crl.o	x509_crt.o	\
-		x509_csr.o	x509write_crt.o	x509write_csr.o
-
-OBJS_TLS=	debug.o		net_sockets.o		\
-		ssl_cache.o	ssl_ciphersuites.o	\
-		ssl_cli.o	ssl_cookie.o		\
-		ssl_srv.o	ssl_ticket.o		\
-		ssl_tls.o
+# For files generated by the parent project (Mbed TLS) when building Mbed
+# Crypto as a submodule, ensure that the parent project instance is used.
+ifeq ($(USE_CRYPTO_SUBMODULE), 1)
+OBJS_CRYPTO += ../../library/error.o
+OBJS_CRYPTO += ../../library/version.o
+OBJS_CRYPTO += ../../library/version_features.o
+else
+OBJS_CRYPTO += error.o
+OBJS_CRYPTO += version.o
+OBJS_CRYPTO += version_features.o
+endif
 
 .SILENT:
 
@@ -111,63 +111,9 @@
 all: shared static
 endif
 
-static: libmbedcrypto.a libmbedx509.a libmbedtls.a
+static: libmbedcrypto.a
 
-shared: libmbedcrypto.$(DLEXT) libmbedx509.$(DLEXT) libmbedtls.$(DLEXT)
-
-# tls
-libmbedtls.a: $(OBJS_TLS)
-	echo "  AR    $@"
-	$(AR) $(ARFLAGS) $@ $(OBJS_TLS)
-ifdef APPLE_BUILD
-ifneq ($(APPLE_BUILD),0)
-	echo "  RL    $@"
-	$(RL) $(RLFLAGS) $@
-endif
-endif
-
-libmbedtls.$(SOEXT_TLS): $(OBJS_TLS) libmbedx509.so
-	echo "  LD    $@"
-	$(CC) -shared -Wl,-soname,$@ -L. -lmbedcrypto -lmbedx509 $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_TLS)
-
-libmbedtls.so: libmbedtls.$(SOEXT_TLS)
-	echo "  LN    $@ -> $<"
-	ln -sf $< $@
-
-libmbedtls.dylib: $(OBJS_TLS) libmbedx509.dylib
-	echo "  LD    $@"
-	$(CC) -dynamiclib -L. -lmbedcrypto -lmbedx509 $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_TLS)
-
-libmbedtls.dll: $(OBJS_TLS) libmbedx509.dll
-	echo "  LD    $@"
-	$(CC) -shared -Wl,-soname,$@ -Wl,--out-implib,$@.a -o $@ $(OBJS_TLS) -lws2_32 -lwinmm -lgdi32 -L. -lmbedcrypto -lmbedx509 -static-libgcc $(LOCAL_LDFLAGS) $(LDFLAGS)
-
-# x509
-libmbedx509.a: $(OBJS_X509)
-	echo "  AR    $@"
-	$(AR) $(ARFLAGS) $@ $(OBJS_X509)
-ifdef APPLE_BUILD
-ifneq ($(APPLE_BUILD),0)
-	echo "  RL    $@"
-	$(RL) $(RLFLAGS) $@
-endif
-endif
-
-libmbedx509.$(SOEXT_X509): $(OBJS_X509) libmbedcrypto.so
-	echo "  LD    $@"
-	$(CC) -shared -Wl,-soname,$@ -L. -lmbedcrypto $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_X509)
-
-libmbedx509.so: libmbedx509.$(SOEXT_X509)
-	echo "  LN    $@ -> $<"
-	ln -sf $< $@
-
-libmbedx509.dylib: $(OBJS_X509) libmbedcrypto.dylib
-	echo "  LD    $@"
-	$(CC) -dynamiclib -L. -lmbedcrypto  $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_X509)
-
-libmbedx509.dll: $(OBJS_X509) libmbedcrypto.dll
-	echo "  LD    $@"
-	$(CC) -shared -Wl,-soname,$@ -Wl,--out-implib,$@.a -o $@ $(OBJS_X509) -lws2_32 -lwinmm -lgdi32 -L. -lmbedcrypto -static-libgcc $(LOCAL_LDFLAGS) $(LDFLAGS)
+shared: libmbedcrypto.$(DLEXT)
 
 # crypto
 libmbedcrypto.a: $(OBJS_CRYPTO)
@@ -198,7 +144,7 @@
 
 .c.o:
 	echo "  CC    $<"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) -c $<
+	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) -c $< -o $@
 
 clean:
 ifndef WINDOWS
diff --git a/library/aes.c b/library/aes.c
index 0543cd7..aff0a99 100644
--- a/library/aes.c
+++ b/library/aes.c
@@ -395,9 +395,9 @@
 /*
  * Tables generation code
  */
-#define ROTL8(x) ( ( x << 8 ) & 0xFFFFFFFF ) | ( x >> 24 )
-#define XTIME(x) ( ( x << 1 ) ^ ( ( x & 0x80 ) ? 0x1B : 0x00 ) )
-#define MUL(x,y) ( ( x && y ) ? pow[(log[x]+log[y]) % 255] : 0 )
+#define ROTL8(x) ( ( (x) << 8 ) & 0xFFFFFFFF ) | ( (x) >> 24 )
+#define XTIME(x) ( ( (x) << 1 ) ^ ( ( (x) & 0x80 ) ? 0x1B : 0x00 ) )
+#define MUL(x,y) ( ( (x) && (y) ) ? pow[(log[(x)]+log[(y)]) % 255] : 0 )
 
 static int aes_init_done = 0;
 
@@ -815,51 +815,53 @@
 
 #endif /* !MBEDTLS_AES_SETKEY_DEC_ALT */
 
-#define AES_FROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3)         \
-{                                                   \
-    X0 = *RK++ ^ AES_FT0( ( Y0       ) & 0xFF ) ^   \
-                 AES_FT1( ( Y1 >>  8 ) & 0xFF ) ^   \
-                 AES_FT2( ( Y2 >> 16 ) & 0xFF ) ^   \
-                 AES_FT3( ( Y3 >> 24 ) & 0xFF );    \
-                                                    \
-    X1 = *RK++ ^ AES_FT0( ( Y1       ) & 0xFF ) ^   \
-                 AES_FT1( ( Y2 >>  8 ) & 0xFF ) ^   \
-                 AES_FT2( ( Y3 >> 16 ) & 0xFF ) ^   \
-                 AES_FT3( ( Y0 >> 24 ) & 0xFF );    \
-                                                    \
-    X2 = *RK++ ^ AES_FT0( ( Y2       ) & 0xFF ) ^   \
-                 AES_FT1( ( Y3 >>  8 ) & 0xFF ) ^   \
-                 AES_FT2( ( Y0 >> 16 ) & 0xFF ) ^   \
-                 AES_FT3( ( Y1 >> 24 ) & 0xFF );    \
-                                                    \
-    X3 = *RK++ ^ AES_FT0( ( Y3       ) & 0xFF ) ^   \
-                 AES_FT1( ( Y0 >>  8 ) & 0xFF ) ^   \
-                 AES_FT2( ( Y1 >> 16 ) & 0xFF ) ^   \
-                 AES_FT3( ( Y2 >> 24 ) & 0xFF );    \
-}
+#define AES_FROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3)                     \
+    do                                                          \
+    {                                                           \
+        (X0) = *RK++ ^ AES_FT0( ( (Y0)       ) & 0xFF ) ^       \
+                       AES_FT1( ( (Y1) >>  8 ) & 0xFF ) ^       \
+                       AES_FT2( ( (Y2) >> 16 ) & 0xFF ) ^       \
+                       AES_FT3( ( (Y3) >> 24 ) & 0xFF );        \
+                                                                \
+        (X1) = *RK++ ^ AES_FT0( ( (Y1)       ) & 0xFF ) ^       \
+                       AES_FT1( ( (Y2) >>  8 ) & 0xFF ) ^       \
+                       AES_FT2( ( (Y3) >> 16 ) & 0xFF ) ^       \
+                       AES_FT3( ( (Y0) >> 24 ) & 0xFF );        \
+                                                                \
+        (X2) = *RK++ ^ AES_FT0( ( (Y2)       ) & 0xFF ) ^       \
+                       AES_FT1( ( (Y3) >>  8 ) & 0xFF ) ^       \
+                       AES_FT2( ( (Y0) >> 16 ) & 0xFF ) ^       \
+                       AES_FT3( ( (Y1) >> 24 ) & 0xFF );        \
+                                                                \
+        (X3) = *RK++ ^ AES_FT0( ( (Y3)       ) & 0xFF ) ^       \
+                       AES_FT1( ( (Y0) >>  8 ) & 0xFF ) ^       \
+                       AES_FT2( ( (Y1) >> 16 ) & 0xFF ) ^       \
+                       AES_FT3( ( (Y2) >> 24 ) & 0xFF );        \
+    } while( 0 )
 
-#define AES_RROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3)         \
-{                                                   \
-    X0 = *RK++ ^ AES_RT0( ( Y0       ) & 0xFF ) ^   \
-                 AES_RT1( ( Y3 >>  8 ) & 0xFF ) ^   \
-                 AES_RT2( ( Y2 >> 16 ) & 0xFF ) ^   \
-                 AES_RT3( ( Y1 >> 24 ) & 0xFF );    \
-                                                    \
-    X1 = *RK++ ^ AES_RT0( ( Y1       ) & 0xFF ) ^   \
-                 AES_RT1( ( Y0 >>  8 ) & 0xFF ) ^   \
-                 AES_RT2( ( Y3 >> 16 ) & 0xFF ) ^   \
-                 AES_RT3( ( Y2 >> 24 ) & 0xFF );    \
-                                                    \
-    X2 = *RK++ ^ AES_RT0( ( Y2       ) & 0xFF ) ^   \
-                 AES_RT1( ( Y1 >>  8 ) & 0xFF ) ^   \
-                 AES_RT2( ( Y0 >> 16 ) & 0xFF ) ^   \
-                 AES_RT3( ( Y3 >> 24 ) & 0xFF );    \
-                                                    \
-    X3 = *RK++ ^ AES_RT0( ( Y3       ) & 0xFF ) ^   \
-                 AES_RT1( ( Y2 >>  8 ) & 0xFF ) ^   \
-                 AES_RT2( ( Y1 >> 16 ) & 0xFF ) ^   \
-                 AES_RT3( ( Y0 >> 24 ) & 0xFF );    \
-}
+#define AES_RROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3)                 \
+    do                                                      \
+    {                                                       \
+        (X0) = *RK++ ^ AES_RT0( ( (Y0)       ) & 0xFF ) ^   \
+                       AES_RT1( ( (Y3) >>  8 ) & 0xFF ) ^   \
+                       AES_RT2( ( (Y2) >> 16 ) & 0xFF ) ^   \
+                       AES_RT3( ( (Y1) >> 24 ) & 0xFF );    \
+                                                            \
+        (X1) = *RK++ ^ AES_RT0( ( (Y1)       ) & 0xFF ) ^   \
+                       AES_RT1( ( (Y0) >>  8 ) & 0xFF ) ^   \
+                       AES_RT2( ( (Y3) >> 16 ) & 0xFF ) ^   \
+                       AES_RT3( ( (Y2) >> 24 ) & 0xFF );    \
+                                                            \
+        (X2) = *RK++ ^ AES_RT0( ( (Y2)       ) & 0xFF ) ^   \
+                       AES_RT1( ( (Y1) >>  8 ) & 0xFF ) ^   \
+                       AES_RT2( ( (Y0) >> 16 ) & 0xFF ) ^   \
+                       AES_RT3( ( (Y3) >> 24 ) & 0xFF );    \
+                                                            \
+        (X3) = *RK++ ^ AES_RT0( ( (Y3)       ) & 0xFF ) ^   \
+                       AES_RT1( ( (Y2) >>  8 ) & 0xFF ) ^   \
+                       AES_RT2( ( (Y1) >> 16 ) & 0xFF ) ^   \
+                       AES_RT3( ( (Y0) >> 24 ) & 0xFF );    \
+    } while( 0 )
 
 /*
  * AES-ECB block encryption
diff --git a/library/ccm.c b/library/ccm.c
index 2c87b3e..a7e360e 100644
--- a/library/ccm.c
+++ b/library/ccm.c
@@ -135,11 +135,17 @@
  * This avoids allocating one more 16 bytes buffer while allowing src == dst.
  */
 #define CTR_CRYPT( dst, src, len  )                                            \
-    if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctr, 16, b, &olen ) ) != 0 )  \
-        return( ret );                                                         \
-                                                                               \
-    for( i = 0; i < len; i++ )                                                 \
-        dst[i] = src[i] ^ b[i];
+    do                                                                  \
+    {                                                                   \
+        if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctr,       \
+                                           16, b, &olen ) ) != 0 )      \
+        {                                                               \
+            return( ret );                                              \
+        }                                                               \
+                                                                        \
+        for( i = 0; i < (len); i++ )                                    \
+            (dst)[i] = (src)[i] ^ b[i];                                 \
+    } while( 0 )
 
 /*
  * Authenticated encryption or decryption
diff --git a/library/certs.c b/library/certs.c
deleted file mode 100644
index b54ff61..0000000
--- a/library/certs.c
+++ /dev/null
@@ -1,436 +0,0 @@
-/*
- *  X.509 test certificates
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include "mbedtls/certs.h"
-
-#if defined(MBEDTLS_CERTS_C)
-
-#if defined(MBEDTLS_ECDSA_C)
-#define TEST_CA_CRT_EC                                                  \
-"-----BEGIN CERTIFICATE-----\r\n"                                       \
-"MIICUjCCAdegAwIBAgIJAMFD4n5iQ8zoMAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT\r\n"  \
-"Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF\r\n"  \
-"QyBDQTAeFw0xMzA5MjQxNTQ5NDhaFw0yMzA5MjIxNTQ5NDhaMD4xCzAJBgNVBAYT\r\n"  \
-"Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF\r\n"  \
-"QyBDQTB2MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBu\r\n"  \
-"ww5XUzM5WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiy\r\n"  \
-"aY7zQa0pw7RfdadHb9UZKVVpmlM7ILRmFmAzHqOBoDCBnTAdBgNVHQ4EFgQUnW0g\r\n"  \
-"JEkBPyvLeLUZvH4kydv7NnwwbgYDVR0jBGcwZYAUnW0gJEkBPyvLeLUZvH4kydv7\r\n"  \
-"NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UE\r\n"  \
-"AxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAwGA1UdEwQFMAMBAf8w\r\n"  \
-"CgYIKoZIzj0EAwIDaQAwZgIxAMO0YnNWKJUAfXgSJtJxexn4ipg+kv4znuR50v56\r\n"  \
-"t4d0PCu412mUC6Nnd7izvtE2MgIxAP1nnJQjZ8BWukszFQDG48wxCCyci9qpdSMv\r\n"  \
-"uCjn8pwUOkABXK8Mss90fzCfCEOtIA==\r\n"                                  \
-"-----END CERTIFICATE-----\r\n"
-const char mbedtls_test_ca_crt_ec[] = TEST_CA_CRT_EC;
-const size_t mbedtls_test_ca_crt_ec_len = sizeof( mbedtls_test_ca_crt_ec );
-
-const char mbedtls_test_ca_key_ec[] =
-"-----BEGIN EC PRIVATE KEY-----\r\n"
-"Proc-Type: 4,ENCRYPTED\r\n"
-"DEK-Info: DES-EDE3-CBC,307EAB469933D64E\r\n"
-"\r\n"
-"IxbrRmKcAzctJqPdTQLA4SWyBYYGYJVkYEna+F7Pa5t5Yg/gKADrFKcm6B72e7DG\r\n"
-"ihExtZI648s0zdYw6qSJ74vrPSuWDe5qm93BqsfVH9svtCzWHW0pm1p0KTBCFfUq\r\n"
-"UsuWTITwJImcnlAs1gaRZ3sAWm7cOUidL0fo2G0fYUFNcYoCSLffCFTEHBuPnagb\r\n"
-"a77x/sY1Bvii8S9/XhDTb6pTMx06wzrm\r\n"
-"-----END EC PRIVATE KEY-----\r\n";
-const size_t mbedtls_test_ca_key_ec_len = sizeof( mbedtls_test_ca_key_ec );
-
-const char mbedtls_test_ca_pwd_ec[] = "PolarSSLTest";
-const size_t mbedtls_test_ca_pwd_ec_len = sizeof( mbedtls_test_ca_pwd_ec ) - 1;
-
-const char mbedtls_test_srv_crt_ec[] =
-"-----BEGIN CERTIFICATE-----\r\n"
-"MIICHzCCAaWgAwIBAgIBCTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G\r\n"
-"A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN\r\n"
-"MTMwOTI0MTU1MjA0WhcNMjMwOTIyMTU1MjA0WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n"
-"A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG\r\n"
-"CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA\r\n"
-"2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgZ0wgZowCQYDVR0TBAIwADAd\r\n"
-"BgNVHQ4EFgQUUGGlj9QH2deCAQzlZX+MY0anE74wbgYDVR0jBGcwZYAUnW0gJEkB\r\n"
-"PyvLeLUZvH4kydv7NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xh\r\n"
-"clNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAoG\r\n"
-"CCqGSM49BAMCA2gAMGUCMQCaLFzXptui5WQN8LlO3ddh1hMxx6tzgLvT03MTVK2S\r\n"
-"C12r0Lz3ri/moSEpNZWqPjkCMCE2f53GXcYLqyfyJR078c/xNSUU5+Xxl7VZ414V\r\n"
-"fGa5kHvHARBPc8YAIVIqDvHH1Q==\r\n"
-"-----END CERTIFICATE-----\r\n";
-const size_t mbedtls_test_srv_crt_ec_len = sizeof( mbedtls_test_srv_crt_ec );
-
-const char mbedtls_test_srv_key_ec[] =
-"-----BEGIN EC PRIVATE KEY-----\r\n"
-"MHcCAQEEIPEqEyB2AnCoPL/9U/YDHvdqXYbIogTywwyp6/UfDw6noAoGCCqGSM49\r\n"
-"AwEHoUQDQgAEN8xW2XYJHlpyPsdZLf8gbu58+QaRdNCtFLX3aCJZYpJO5QDYIxH/\r\n"
-"6i/SNF1dFr2KiMJrdw1VzYoqDvoByLTt/w==\r\n"
-"-----END EC PRIVATE KEY-----\r\n";
-const size_t mbedtls_test_srv_key_ec_len = sizeof( mbedtls_test_srv_key_ec );
-
-const char mbedtls_test_cli_crt_ec[] =
-"-----BEGIN CERTIFICATE-----\r\n"
-"MIICLDCCAbKgAwIBAgIBDTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G\r\n"
-"A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN\r\n"
-"MTMwOTI0MTU1MjA0WhcNMjMwOTIyMTU1MjA0WjBBMQswCQYDVQQGEwJOTDERMA8G\r\n"
-"A1UEChMIUG9sYXJTU0wxHzAdBgNVBAMTFlBvbGFyU1NMIFRlc3QgQ2xpZW50IDIw\r\n"
-"WTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAARX5a6xc9/TrLuTuIH/Eq7u5lOszlVT\r\n"
-"9jQOzC7jYyUL35ji81xgNpbA1RgUcOV/n9VLRRjlsGzVXPiWj4dwo+THo4GdMIGa\r\n"
-"MAkGA1UdEwQCMAAwHQYDVR0OBBYEFHoAX4Zk/OBd5REQO7LmO8QmP8/iMG4GA1Ud\r\n"
-"IwRnMGWAFJ1tICRJAT8ry3i1Gbx+JMnb+zZ8oUKkQDA+MQswCQYDVQQGEwJOTDER\r\n"
-"MA8GA1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0GC\r\n"
-"CQDBQ+J+YkPM6DAKBggqhkjOPQQDAgNoADBlAjBKZQ17IIOimbmoD/yN7o89u3BM\r\n"
-"lgOsjnhw3fIOoLIWy2WOGsk/LGF++DzvrRzuNiACMQCd8iem1XS4JK7haj8xocpU\r\n"
-"LwjQje5PDGHfd3h9tP38Qknu5bJqws0md2KOKHyeV0U=\r\n"
-"-----END CERTIFICATE-----\r\n";
-const size_t mbedtls_test_cli_crt_ec_len = sizeof( mbedtls_test_cli_crt_ec );
-
-const char mbedtls_test_cli_key_ec[] =
-"-----BEGIN EC PRIVATE KEY-----\r\n"
-"MHcCAQEEIPb3hmTxZ3/mZI3vyk7p3U3wBf+WIop6hDhkFzJhmLcqoAoGCCqGSM49\r\n"
-"AwEHoUQDQgAEV+WusXPf06y7k7iB/xKu7uZTrM5VU/Y0Dswu42MlC9+Y4vNcYDaW\r\n"
-"wNUYFHDlf5/VS0UY5bBs1Vz4lo+HcKPkxw==\r\n"
-"-----END EC PRIVATE KEY-----\r\n";
-const size_t mbedtls_test_cli_key_ec_len = sizeof( mbedtls_test_cli_key_ec );
-#endif /* MBEDTLS_ECDSA_C */
-
-#if defined(MBEDTLS_RSA_C)
-#if defined(MBEDTLS_SHA256_C)
-#define TEST_CA_CRT_RSA_SHA256                                          \
-"-----BEGIN CERTIFICATE-----\r\n"                                       \
-"MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER\r\n"  \
-"MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n"  \
-"MTcwNTA0MTY1NzAxWhcNMjcwNTA1MTY1NzAxWjA7MQswCQYDVQQGEwJOTDERMA8G\r\n"  \
-"A1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G\r\n"  \
-"CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx\r\n"  \
-"mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny\r\n"  \
-"50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n\r\n"  \
-"YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL\r\n"  \
-"R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu\r\n"  \
-"KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj\r\n"  \
-"gZUwgZIwHQYDVR0OBBYEFLRa5KWz3tJS9rnVppUP6z68x/3/MGMGA1UdIwRcMFqA\r\n"  \
-"FLRa5KWz3tJS9rnVppUP6z68x/3/oT+kPTA7MQswCQYDVQQGEwJOTDERMA8GA1UE\r\n"  \
-"CgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0GCAQAwDAYDVR0T\r\n"  \
-"BAUwAwEB/zANBgkqhkiG9w0BAQsFAAOCAQEAHK/HHrTZMnnVMpde1io+voAtql7j\r\n"  \
-"4sRhLrjD7o3THtwRbDa2diCvpq0Sq23Ng2LMYoXsOxoL/RQK3iN7UKxV3MKPEr0w\r\n"  \
-"XQS+kKQqiT2bsfrjnWMVHZtUOMpm6FNqcdGm/Rss3vKda2lcKl8kUnq/ylc1+QbB\r\n"  \
-"G6A6tUvQcr2ZyWfVg+mM5XkhTrOOXus2OLikb4WwEtJTJRNE0f+yPODSUz0/vT57\r\n"  \
-"ApH0CnB80bYJshYHPHHymOtleAB8KSYtqm75g/YNobjnjB6cm4HkW3OZRVIl6fYY\r\n"  \
-"n20NRVA1Vjs6GAROr4NqW4k/+LofY9y0LLDE+p0oIEKXIsIvhPr39swxSA==\r\n"      \
-"-----END CERTIFICATE-----\r\n"
-
-static const char mbedtls_test_ca_crt_rsa_sha256[] = TEST_CA_CRT_RSA_SHA256;
-const char   mbedtls_test_ca_crt_rsa[]   = TEST_CA_CRT_RSA_SHA256;
-const size_t mbedtls_test_ca_crt_rsa_len = sizeof( mbedtls_test_ca_crt_rsa );
-#define TEST_CA_CRT_RSA_SOME
-#endif /* MBEDTLS_SHA256_C */
-
-#if !defined(TEST_CA_CRT_RSA_SOME) || defined(MBEDTLS_SHA1_C)
-#define TEST_CA_CRT_RSA_SHA1                                            \
-"-----BEGIN CERTIFICATE-----\r\n"                                       \
-"MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER\r\n"  \
-"MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n"  \
-"MTEwMjEyMTQ0NDAwWhcNMjEwMjEyMTQ0NDAwWjA7MQswCQYDVQQGEwJOTDERMA8G\r\n"  \
-"A1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G\r\n"  \
-"CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx\r\n"  \
-"mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny\r\n"  \
-"50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n\r\n"  \
-"YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL\r\n"  \
-"R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu\r\n"  \
-"KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj\r\n"  \
-"gZUwgZIwDAYDVR0TBAUwAwEB/zAdBgNVHQ4EFgQUtFrkpbPe0lL2udWmlQ/rPrzH\r\n"  \
-"/f8wYwYDVR0jBFwwWoAUtFrkpbPe0lL2udWmlQ/rPrzH/f+hP6Q9MDsxCzAJBgNV\r\n"  \
-"BAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEZMBcGA1UEAxMQUG9sYXJTU0wgVGVz\r\n"  \
-"dCBDQYIBADANBgkqhkiG9w0BAQUFAAOCAQEAuP1U2ABUkIslsCfdlc2i94QHHYeJ\r\n"  \
-"SsR4EdgHtdciUI5I62J6Mom+Y0dT/7a+8S6MVMCZP6C5NyNyXw1GWY/YR82XTJ8H\r\n"  \
-"DBJiCTok5DbZ6SzaONBzdWHXwWwmi5vg1dxn7YxrM9d0IjxM27WNKs4sDQhZBQkF\r\n"  \
-"pjmfs2cb4oPl4Y9T9meTx/lvdkRYEug61Jfn6cA+qHpyPYdTH+UshITnmp5/Ztkf\r\n"  \
-"m/UTSLBNFNHesiTZeH31NcxYGdHSme9Nc/gfidRa0FLOCfWxRlFqAI47zG9jAQCZ\r\n"  \
-"7Z2mCGDNMhjQc+BYcdnl0lPXjdDK6V0qCg1dVewhUBcW5gZKzV7e9+DpVA==\r\n"      \
-"-----END CERTIFICATE-----\r\n"
-
-static const char mbedtls_test_ca_crt_rsa_sha1[] = TEST_CA_CRT_RSA_SHA1;
-
-#if !defined (TEST_CA_CRT_RSA_SOME)
-const char   mbedtls_test_ca_crt_rsa[]   = TEST_CA_CRT_RSA_SHA1;
-const size_t mbedtls_test_ca_crt_rsa_len = sizeof( mbedtls_test_ca_crt_rsa );
-#endif /* !TEST_CA_CRT_RSA_SOME */
-#endif /* !TEST_CA_CRT_RSA_COME || MBEDTLS_SHA1_C */
-
-#if defined(MBEDTLS_SHA256_C)
-/* tests/data_files/server2-sha256.crt */
-#define TEST_SRV_CRT_RSA_SHA256                                          \
-"-----BEGIN CERTIFICATE-----\r\n"                                        \
-"MIIDNzCCAh+gAwIBAgIBAjANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER\r\n"   \
-"MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n"   \
-"MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n"   \
-"A1UECgwIUG9sYXJTU0wxEjAQBgNVBAMMCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN\r\n"   \
-"AQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTN\r\n"   \
-"owCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKz\r\n"   \
-"NtSj+uGxdtiQwWG0ZlI2oiZTqqt0Xgd9GYLbKtgfoNkNHC1JZvdbJXNG6AuKT2kM\r\n"   \
-"tQCQ4dqCEGZ9rlQri2V5kaHiYcPNQEkI7mgM8YuG0ka/0LiqEQMef1aoGh5EGA8P\r\n"   \
-"hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya\r\n"   \
-"HT4P6DSYW8tzS1KW2BGiLICIaTla0w+w3lkvEcf36hIBMJcCAwEAAaNNMEswCQYD\r\n"   \
-"VR0TBAIwADAdBgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwHwYDVR0jBBgw\r\n"   \
-"FoAUtFrkpbPe0lL2udWmlQ/rPrzH/f8wDQYJKoZIhvcNAQELBQADggEBAGGEshT5\r\n"   \
-"kvnRmLVScVeUEdwIrvW7ezbGbUvJ8VxeJ79/HSjlLiGbMc4uUathwtzEdi9R/4C5\r\n"   \
-"DXBNeEPTkbB+fhG1W06iHYj/Dp8+aaG7fuDxKVKHVZSqBnmQLn73ymyclZNHii5A\r\n"   \
-"3nTS8WUaHAzxN/rajOtoM7aH1P9tULpHrl+7HOeLMpxUnwI12ZqZaLIzxbcdJVcr\r\n"   \
-"ra2F00aXCGkYVLvyvbZIq7LC+yVysej5gCeQYD7VFOEks0jhFjrS06gP0/XnWv6v\r\n"   \
-"eBoPez9d+CCjkrhseiWzXOiriIMICX48EloO/DrsMRAtvlwq7EDz4QhILz6ffndm\r\n"   \
-"e4K1cVANRPN2o9Y=\r\n"                                                   \
-"-----END CERTIFICATE-----\r\n"
-
-const char mbedtls_test_srv_crt_rsa[]     =  TEST_SRV_CRT_RSA_SHA256;
-const size_t mbedtls_test_srv_crt_rsa_len = sizeof( mbedtls_test_srv_crt_rsa );
-#define TEST_SRV_CRT_RSA_SOME
-#endif /* MBEDTLS_SHA256_C */
-
-#if !defined(TEST_SRV_CRT_RSA_SOME) || defined(MBEDTLS_SHA1_C)
-/* tests/data_files/server2.crt */
-#define TEST_SRV_CRT_RSA_SHA1                                          \
-"-----BEGIN CERTIFICATE-----\r\n"                                      \
-"MIIDNzCCAh+gAwIBAgIBAjANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER\r\n" \
-"MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n" \
-"MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n" \
-"A1UECgwIUG9sYXJTU0wxEjAQBgNVBAMMCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN\r\n" \
-"AQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTN\r\n" \
-"owCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKz\r\n" \
-"NtSj+uGxdtiQwWG0ZlI2oiZTqqt0Xgd9GYLbKtgfoNkNHC1JZvdbJXNG6AuKT2kM\r\n" \
-"tQCQ4dqCEGZ9rlQri2V5kaHiYcPNQEkI7mgM8YuG0ka/0LiqEQMef1aoGh5EGA8P\r\n" \
-"hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya\r\n" \
-"HT4P6DSYW8tzS1KW2BGiLICIaTla0w+w3lkvEcf36hIBMJcCAwEAAaNNMEswCQYD\r\n" \
-"VR0TBAIwADAdBgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwHwYDVR0jBBgw\r\n" \
-"FoAUtFrkpbPe0lL2udWmlQ/rPrzH/f8wDQYJKoZIhvcNAQEFBQADggEBAAFzC0rF\r\n" \
-"y6De8WMcdgQrEw3AhBHFjzqnxZw1ene4IBSC7lTw8rBSy3jOWQdPUWn+0y/pCeeF\r\n" \
-"kti6sevFdl1hLemGtd4q+T9TKEKGg3ND4ARfB5AUZZ9uEHq8WBkiwus5clGS17Qd\r\n" \
-"dS/TOisB59tQruLx1E1bPLtBKyqk4koC5WAULJwfpswGSyWJTpYwIpxcWE3D2tBu\r\n" \
-"UB6MZfXZFzWmWEOyKbeoXjXe8GBCGgHLywvYDsGQ36HSGtEsAvR2QaTLSxWYcfk1\r\n" \
-"fbDn4jSWkb4yZy1r01UEigFQtONieGwRFaUqEcFJHJvEEGVgh9keaVlOj2vrwf5r\r\n" \
-"4mN4lW7gLdenN6g=\r\n"                                                 \
-"-----END CERTIFICATE-----\r\n";
-
-#if !defined(TEST_SRV_CRT_RSA_SOME)
-const char mbedtls_test_srv_crt_rsa[]     =  TEST_SRV_CRT_RSA_SHA1;
-const size_t mbedtls_test_srv_crt_rsa_len = sizeof( mbedtls_test_srv_crt_rsa );
-#endif /* TEST_SRV_CRT_RSA_SOME */
-#endif /* !TEST_CA_CRT_RSA_SOME || MBEDTLS_SHA1_C */
-
-const char mbedtls_test_ca_key_rsa[] =
-"-----BEGIN RSA PRIVATE KEY-----\r\n"
-"Proc-Type: 4,ENCRYPTED\r\n"
-"DEK-Info: DES-EDE3-CBC,A8A95B05D5B7206B\r\n"
-"\r\n"
-"9Qd9GeArejl1GDVh2lLV1bHt0cPtfbh5h/5zVpAVaFpqtSPMrElp50Rntn9et+JA\r\n"
-"7VOyboR+Iy2t/HU4WvA687k3Bppe9GwKHjHhtl//8xFKwZr3Xb5yO5JUP8AUctQq\r\n"
-"Nb8CLlZyuUC+52REAAthdWgsX+7dJO4yabzUcQ22Tp9JSD0hiL43BlkWYUNK3dAo\r\n"
-"PZlmiptjnzVTjg1MxsBSydZinWOLBV8/JQgxSPo2yD4uEfig28qbvQ2wNIn0pnAb\r\n"
-"GxnSAOazkongEGfvcjIIs+LZN9gXFhxcOh6kc4Q/c99B7QWETwLLkYgZ+z1a9VY9\r\n"
-"gEU7CwCxYCD+h9hY6FPmsK0/lC4O7aeRKpYq00rPPxs6i7phiexg6ax6yTMmArQq\r\n"
-"QmK3TAsJm8V/J5AWpLEV6jAFgRGymGGHnof0DXzVWZidrcZJWTNuGEX90nB3ee2w\r\n"
-"PXJEFWKoD3K3aFcSLdHYr3mLGxP7H9ThQai9VsycxZKS5kwvBKQ//YMrmFfwPk8x\r\n"
-"vTeY4KZMaUrveEel5tWZC94RSMKgxR6cyE1nBXyTQnDOGbfpNNgBKxyKbINWoOJU\r\n"
-"WJZAwlsQn+QzCDwpri7+sV1mS3gBE6UY7aQmnmiiaC2V3Hbphxct/en5QsfDOt1X\r\n"
-"JczSfpRWLlbPznZg8OQh/VgCMA58N5DjOzTIK7sJJ5r+94ZBTCpgAMbF588f0NTR\r\n"
-"KCe4yrxGJR7X02M4nvD4IwOlpsQ8xQxZtOSgXv4LkxvdU9XJJKWZ/XNKJeWztxSe\r\n"
-"Z1vdTc2YfsDBA2SEv33vxHx2g1vqtw8SjDRT2RaQSS0QuSaMJimdOX6mTOCBKk1J\r\n"
-"9Q5mXTrER+/LnK0jEmXsBXWA5bqqVZIyahXSx4VYZ7l7w/PHiUDtDgyRhMMKi4n2\r\n"
-"iQvQcWSQTjrpnlJbca1/DkpRt3YwrvJwdqb8asZU2VrNETh5x0QVefDRLFiVpif/\r\n"
-"tUaeAe/P1F8OkS7OIZDs1SUbv/sD2vMbhNkUoCms3/PvNtdnvgL4F0zhaDpKCmlT\r\n"
-"P8vx49E7v5CyRNmED9zZg4o3wmMqrQO93PtTug3Eu9oVx1zPQM1NVMyBa2+f29DL\r\n"
-"1nuTCeXdo9+ni45xx+jAI4DCwrRdhJ9uzZyC6962H37H6D+5naNvClFR1s6li1Gb\r\n"
-"nqPoiy/OBsEx9CaDGcqQBp5Wme/3XW+6z1ISOx+igwNTVCT14mHdBMbya0eIKft5\r\n"
-"X+GnwtgEMyCYyyWuUct8g4RzErcY9+yW9Om5Hzpx4zOuW4NPZgPDTgK+t2RSL/Yq\r\n"
-"rE1njrgeGYcVeG3f+OftH4s6fPbq7t1A5ZgUscbLMBqr9tK+OqygR4EgKBPsH6Cz\r\n"
-"L6zlv/2RV0qAHvVuDJcIDIgwY5rJtINEm32rhOeFNJwZS5MNIC1czXZx5//ugX7l\r\n"
-"I4sy5nbVhwSjtAk8Xg5dZbdTZ6mIrb7xqH+fdakZor1khG7bC2uIwibD3cSl2XkR\r\n"
-"wN48lslbHnqqagr6Xm1nNOSVl8C/6kbJEsMpLhAezfRtGwvOucoaE+WbeUNolGde\r\n"
-"P/eQiddSf0brnpiLJRh7qZrl9XuqYdpUqnoEdMAfotDOID8OtV7gt8a48ad8VPW2\r\n"
-"-----END RSA PRIVATE KEY-----\r\n";
-const size_t mbedtls_test_ca_key_rsa_len = sizeof( mbedtls_test_ca_key_rsa );
-
-const char mbedtls_test_ca_pwd_rsa[] = "PolarSSLTest";
-const size_t mbedtls_test_ca_pwd_rsa_len = sizeof( mbedtls_test_ca_pwd_rsa ) - 1;
-
-const char mbedtls_test_srv_key_rsa[] =
-"-----BEGIN RSA PRIVATE KEY-----\r\n"
-"MIIEpAIBAAKCAQEAwU2j3efNHdEE10lyuJmsDnjkOjxKzzoTFtBa5M2jAIin7h5r\r\n"
-"lqdStJDvLXJ6PiSa/LY0rCT1d+AmZIycsCh9odrqjObJHJa8/sEEUrM21KP64bF2\r\n"
-"2JDBYbRmUjaiJlOqq3ReB30Zgtsq2B+g2Q0cLUlm91slc0boC4pPaQy1AJDh2oIQ\r\n"
-"Zn2uVCuLZXmRoeJhw81ASQjuaAzxi4bSRr/QuKoRAx5/VqgaHkQYDw+Fi9qLRF7i\r\n"
-"GMZiL8dmjfpd2H3zJ4kpAcWQDj8n8TDISg7v1t7HxydrxwU9esQCPJodPg/oNJhb\r\n"
-"y3NLUpbYEaIsgIhpOVrTD7DeWS8Rx/fqEgEwlwIDAQABAoIBAQCXR0S8EIHFGORZ\r\n"
-"++AtOg6eENxD+xVs0f1IeGz57Tjo3QnXX7VBZNdj+p1ECvhCE/G7XnkgU5hLZX+G\r\n"
-"Z0jkz/tqJOI0vRSdLBbipHnWouyBQ4e/A1yIJdlBtqXxJ1KE/ituHRbNc4j4kL8Z\r\n"
-"/r6pvwnTI0PSx2Eqs048YdS92LT6qAv4flbNDxMn2uY7s4ycS4Q8w1JXnCeaAnYm\r\n"
-"WYI5wxO+bvRELR2Mcz5DmVnL8jRyml6l6582bSv5oufReFIbyPZbQWlXgYnpu6He\r\n"
-"GTc7E1zKYQGG/9+DQUl/1vQuCPqQwny0tQoX2w5tdYpdMdVm+zkLtbajzdTviJJa\r\n"
-"TWzL6lt5AoGBAN86+SVeJDcmQJcv4Eq6UhtRr4QGMiQMz0Sod6ettYxYzMgxtw28\r\n"
-"CIrgpozCc+UaZJLo7UxvC6an85r1b2nKPCLQFaggJ0H4Q0J/sZOhBIXaoBzWxveK\r\n"
-"nupceKdVxGsFi8CDy86DBfiyFivfBj+47BbaQzPBj7C4rK7UlLjab2rDAoGBAN2u\r\n"
-"AM2gchoFiu4v1HFL8D7lweEpi6ZnMJjnEu/dEgGQJFjwdpLnPbsj4c75odQ4Gz8g\r\n"
-"sw9lao9VVzbusoRE/JGI4aTdO0pATXyG7eG1Qu+5Yc1YGXcCrliA2xM9xx+d7f+s\r\n"
-"mPzN+WIEg5GJDYZDjAzHG5BNvi/FfM1C9dOtjv2dAoGAF0t5KmwbjWHBhcVqO4Ic\r\n"
-"BVvN3BIlc1ue2YRXEDlxY5b0r8N4XceMgKmW18OHApZxfl8uPDauWZLXOgl4uepv\r\n"
-"whZC3EuWrSyyICNhLY21Ah7hbIEBPF3L3ZsOwC+UErL+dXWLdB56Jgy3gZaBeW7b\r\n"
-"vDrEnocJbqCm7IukhXHOBK8CgYEAwqdHB0hqyNSzIOGY7v9abzB6pUdA3BZiQvEs\r\n"
-"3LjHVd4HPJ2x0N8CgrBIWOE0q8+0hSMmeE96WW/7jD3fPWwCR5zlXknxBQsfv0gP\r\n"
-"3BC5PR0Qdypz+d+9zfMf625kyit4T/hzwhDveZUzHnk1Cf+IG7Q+TOEnLnWAWBED\r\n"
-"ISOWmrUCgYAFEmRxgwAc/u+D6t0syCwAYh6POtscq9Y0i9GyWk89NzgC4NdwwbBH\r\n"
-"4AgahOxIxXx2gxJnq3yfkJfIjwf0s2DyP0kY2y6Ua1OeomPeY9mrIS4tCuDQ6LrE\r\n"
-"TB6l9VGoxJL4fyHnZb8L5gGvnB1bbD8cL6YPaDiOhcRseC9vBiEuVg==\r\n"
-"-----END RSA PRIVATE KEY-----\r\n";
-const size_t mbedtls_test_srv_key_rsa_len = sizeof( mbedtls_test_srv_key_rsa );
-
-/* tests/data_files/cli-rsa-sha256.crt */
-const char mbedtls_test_cli_crt_rsa[] =
-"-----BEGIN CERTIFICATE-----\r\n"
-"MIIDPzCCAiegAwIBAgIBBDANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER\r\n"
-"MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n"
-"MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA8MQswCQYDVQQGEwJOTDERMA8G\r\n"
-"A1UECgwIUG9sYXJTU0wxGjAYBgNVBAMMEVBvbGFyU1NMIENsaWVudCAyMIIBIjAN\r\n"
-"BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyHTEzLn5tXnpRdkUYLB9u5Pyax6f\r\n"
-"M60Nj4o8VmXl3ETZzGaFB9X4J7BKNdBjngpuG7fa8H6r7gwQk4ZJGDTzqCrSV/Uu\r\n"
-"1C93KYRhTYJQj6eVSHD1bk2y1RPD0hrt5kPqQhTrdOrA7R/UV06p86jt0uDBMHEw\r\n"
-"MjDV0/YI0FZPRo7yX/k9Z5GIMC5Cst99++UMd//sMcB4j7/Cf8qtbCHWjdmLao5v\r\n"
-"4Jv4EFbMs44TFeY0BGbH7vk2DmqV9gmaBmf0ZXH4yqSxJeD+PIs1BGe64E92hfx/\r\n"
-"/DZrtenNLQNiTrM9AM+vdqBpVoNq0qjU51Bx5rU2BXcFbXvI5MT9TNUhXwIDAQAB\r\n"
-"o00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBRxoQBzckAvVHZeM/xSj7zx3WtGITAf\r\n"
-"BgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQsFAAOC\r\n"
-"AQEAlHabem2Tu69VUN7EipwnQn1dIHdgvT5i+iQHpSxY1crPnBbAeSdAXwsVEqLQ\r\n"
-"gOOIAQD5VIITNuoGgo4i+4OpNh9u7ZkpRHla+/swsfrFWRRbBNP5Bcu74AGLstwU\r\n"
-"zM8gIkBiyfM1Q1qDQISV9trlCG6O8vh8dp/rbI3rfzo99BOHXgFCrzXjCuW4vDsF\r\n"
-"r+Dao26bX3sJ6UnEWg1H3o2x6PpUcvQ36h71/bz4TEbbUUEpe02V4QWuL+wrhHJL\r\n"
-"U7o3SVE3Og7jPF8sat0a50YUWhwEFI256m02KAXLg89ueUyYKEr6rNwhcvXJpvU9\r\n"
-"giIVvd0Sbjjnn7NC4VDbcXV8vw==\r\n"
-"-----END CERTIFICATE-----\r\n";
-const size_t mbedtls_test_cli_crt_rsa_len = sizeof( mbedtls_test_cli_crt_rsa );
-
-/* tests/data_files/cli-rsa.key */
-const char mbedtls_test_cli_key_rsa[] =
-"-----BEGIN RSA PRIVATE KEY-----\r\n"
-"MIIEpAIBAAKCAQEAyHTEzLn5tXnpRdkUYLB9u5Pyax6fM60Nj4o8VmXl3ETZzGaF\r\n"
-"B9X4J7BKNdBjngpuG7fa8H6r7gwQk4ZJGDTzqCrSV/Uu1C93KYRhTYJQj6eVSHD1\r\n"
-"bk2y1RPD0hrt5kPqQhTrdOrA7R/UV06p86jt0uDBMHEwMjDV0/YI0FZPRo7yX/k9\r\n"
-"Z5GIMC5Cst99++UMd//sMcB4j7/Cf8qtbCHWjdmLao5v4Jv4EFbMs44TFeY0BGbH\r\n"
-"7vk2DmqV9gmaBmf0ZXH4yqSxJeD+PIs1BGe64E92hfx//DZrtenNLQNiTrM9AM+v\r\n"
-"dqBpVoNq0qjU51Bx5rU2BXcFbXvI5MT9TNUhXwIDAQABAoIBAGdNtfYDiap6bzst\r\n"
-"yhCiI8m9TtrhZw4MisaEaN/ll3XSjaOG2dvV6xMZCMV+5TeXDHOAZnY18Yi18vzz\r\n"
-"4Ut2TnNFzizCECYNaA2fST3WgInnxUkV3YXAyP6CNxJaCmv2aA0yFr2kFVSeaKGt\r\n"
-"ymvljNp2NVkvm7Th8fBQBO7I7AXhz43k0mR7XmPgewe8ApZOG3hstkOaMvbWAvWA\r\n"
-"zCZupdDjZYjOJqlA4eEA4H8/w7F83r5CugeBE8LgEREjLPiyejrU5H1fubEY+h0d\r\n"
-"l5HZBJ68ybTXfQ5U9o/QKA3dd0toBEhhdRUDGzWtjvwkEQfqF1reGWj/tod/gCpf\r\n"
-"DFi6X0ECgYEA4wOv/pjSC3ty6TuOvKX2rOUiBrLXXv2JSxZnMoMiWI5ipLQt+RYT\r\n"
-"VPafL/m7Dn6MbwjayOkcZhBwk5CNz5A6Q4lJ64Mq/lqHznRCQQ2Mc1G8eyDF/fYL\r\n"
-"Ze2pLvwP9VD5jTc2miDfw+MnvJhywRRLcemDFP8k4hQVtm8PMp3ZmNECgYEA4gz7\r\n"
-"wzObR4gn8ibe617uQPZjWzUj9dUHYd+in1gwBCIrtNnaRn9I9U/Q6tegRYpii4ys\r\n"
-"c176NmU+umy6XmuSKV5qD9bSpZWG2nLFnslrN15Lm3fhZxoeMNhBaEDTnLT26yoi\r\n"
-"33gp0mSSWy94ZEqipms+ULF6sY1ZtFW6tpGFoy8CgYAQHhnnvJflIs2ky4q10B60\r\n"
-"ZcxFp3rtDpkp0JxhFLhiizFrujMtZSjYNm5U7KkgPVHhLELEUvCmOnKTt4ap/vZ0\r\n"
-"BxJNe1GZH3pW6SAvGDQpl9sG7uu/vTFP+lCxukmzxB0DrrDcvorEkKMom7ZCCRvW\r\n"
-"KZsZ6YeH2Z81BauRj218kQKBgQCUV/DgKP2985xDTT79N08jUo3hTP5MVYCCuj/+\r\n"
-"UeEw1TvZcx3LJby7P6Xad6a1/BqveaGyFKIfEFIaBUBItk801sDDpDaYc4gL00Xc\r\n"
-"7lFuBHOZkxJYlss5QrGpuOEl9ZwUt5IrFLBdYaKqNHzNVC1pCPfb/JyH6Dr2HUxq\r\n"
-"gxUwAQKBgQCcU6G2L8AG9d9c0UpOyL1tMvFe5Ttw0KjlQVdsh1MP6yigYo9DYuwu\r\n"
-"bHFVW2r0dBTqegP2/KTOxKzaHfC1qf0RGDsUoJCNJrd1cwoCLG8P2EF4w3OBrKqv\r\n"
-"8u4ytY0F+Vlanj5lm3TaoHSVF1+NWPyOTiwevIECGKwSxvlki4fDAA==\r\n"
-"-----END RSA PRIVATE KEY-----\r\n";
-const size_t mbedtls_test_cli_key_rsa_len = sizeof( mbedtls_test_cli_key_rsa );
-#endif /* MBEDTLS_RSA_C */
-
-#if defined(MBEDTLS_PEM_PARSE_C)
-/* Concatenation of all available CA certificates */
-const char mbedtls_test_cas_pem[] =
-#ifdef TEST_CA_CRT_RSA_SHA1
-    TEST_CA_CRT_RSA_SHA1
-#endif
-#ifdef TEST_CA_CRT_RSA_SHA256
-    TEST_CA_CRT_RSA_SHA256
-#endif
-#ifdef TEST_CA_CRT_EC
-    TEST_CA_CRT_EC
-#endif
-    "";
-const size_t mbedtls_test_cas_pem_len = sizeof( mbedtls_test_cas_pem );
-#endif
-
-/* List of all available CA certificates */
-const char * mbedtls_test_cas[] = {
-#if defined(TEST_CA_CRT_RSA_SHA1)
-    mbedtls_test_ca_crt_rsa_sha1,
-#endif
-#if defined(TEST_CA_CRT_RSA_SHA256)
-    mbedtls_test_ca_crt_rsa_sha256,
-#endif
-#if defined(MBEDTLS_ECDSA_C)
-    mbedtls_test_ca_crt_ec,
-#endif
-    NULL
-};
-const size_t mbedtls_test_cas_len[] = {
-#if defined(TEST_CA_CRT_RSA_SHA1)
-    sizeof( mbedtls_test_ca_crt_rsa_sha1 ),
-#endif
-#if defined(TEST_CA_CRT_RSA_SHA256)
-    sizeof( mbedtls_test_ca_crt_rsa_sha256 ),
-#endif
-#if defined(MBEDTLS_ECDSA_C)
-    sizeof( mbedtls_test_ca_crt_ec ),
-#endif
-    0
-};
-
-#if defined(MBEDTLS_RSA_C)
-const char *mbedtls_test_ca_crt  = mbedtls_test_ca_crt_rsa; /* SHA1 or SHA256 */
-const char *mbedtls_test_ca_key  = mbedtls_test_ca_key_rsa;
-const char *mbedtls_test_ca_pwd  = mbedtls_test_ca_pwd_rsa;
-const char *mbedtls_test_srv_crt = mbedtls_test_srv_crt_rsa;
-const char *mbedtls_test_srv_key = mbedtls_test_srv_key_rsa;
-const char *mbedtls_test_cli_crt = mbedtls_test_cli_crt_rsa;
-const char *mbedtls_test_cli_key = mbedtls_test_cli_key_rsa;
-const size_t mbedtls_test_ca_crt_len  = sizeof( mbedtls_test_ca_crt_rsa );
-const size_t mbedtls_test_ca_key_len  = sizeof( mbedtls_test_ca_key_rsa );
-const size_t mbedtls_test_ca_pwd_len  = sizeof( mbedtls_test_ca_pwd_rsa ) - 1;
-const size_t mbedtls_test_srv_crt_len = sizeof( mbedtls_test_srv_crt_rsa );
-const size_t mbedtls_test_srv_key_len = sizeof( mbedtls_test_srv_key_rsa );
-const size_t mbedtls_test_cli_crt_len = sizeof( mbedtls_test_cli_crt_rsa );
-const size_t mbedtls_test_cli_key_len = sizeof( mbedtls_test_cli_key_rsa );
-#else /* ! MBEDTLS_RSA_C, so MBEDTLS_ECDSA_C */
-const char *mbedtls_test_ca_crt  = mbedtls_test_ca_crt_ec;
-const char *mbedtls_test_ca_key  = mbedtls_test_ca_key_ec;
-const char *mbedtls_test_ca_pwd  = mbedtls_test_ca_pwd_ec;
-const char *mbedtls_test_srv_crt = mbedtls_test_srv_crt_ec;
-const char *mbedtls_test_srv_key = mbedtls_test_srv_key_ec;
-const char *mbedtls_test_cli_crt = mbedtls_test_cli_crt_ec;
-const char *mbedtls_test_cli_key = mbedtls_test_cli_key_ec;
-const size_t mbedtls_test_ca_crt_len  = sizeof( mbedtls_test_ca_crt_ec );
-const size_t mbedtls_test_ca_key_len  = sizeof( mbedtls_test_ca_key_ec );
-const size_t mbedtls_test_ca_pwd_len  = sizeof( mbedtls_test_ca_pwd_ec ) - 1;
-const size_t mbedtls_test_srv_crt_len = sizeof( mbedtls_test_srv_crt_ec );
-const size_t mbedtls_test_srv_key_len = sizeof( mbedtls_test_srv_key_ec );
-const size_t mbedtls_test_cli_crt_len = sizeof( mbedtls_test_cli_crt_ec );
-const size_t mbedtls_test_cli_key_len = sizeof( mbedtls_test_cli_key_ec );
-#endif /* MBEDTLS_RSA_C */
-
-#endif /* MBEDTLS_CERTS_C */
diff --git a/library/chacha20.c b/library/chacha20.c
index 0757163..8a3610f 100644
--- a/library/chacha20.c
+++ b/library/chacha20.c
@@ -60,14 +60,14 @@
     MBEDTLS_INTERNAL_VALIDATE( cond )
 
 #define BYTES_TO_U32_LE( data, offset )                           \
-    ( (uint32_t) data[offset]                                     \
-          | (uint32_t) ( (uint32_t) data[( offset ) + 1] << 8 )   \
-          | (uint32_t) ( (uint32_t) data[( offset ) + 2] << 16 )  \
-          | (uint32_t) ( (uint32_t) data[( offset ) + 3] << 24 )  \
+    ( (uint32_t) (data)[offset]                                   \
+      | (uint32_t) ( (uint32_t) (data)[( offset ) + 1] << 8 )     \
+      | (uint32_t) ( (uint32_t) (data)[( offset ) + 2] << 16 )    \
+      | (uint32_t) ( (uint32_t) (data)[( offset ) + 3] << 24 )    \
     )
 
 #define ROTL32( value, amount ) \
-        ( (uint32_t) ( value << amount ) | ( value >> ( 32 - amount ) ) )
+    ( (uint32_t) ( (value) << (amount) ) | ( (value) >> ( 32 - (amount) ) ) )
 
 #define CHACHA20_CTR_INDEX ( 12U )
 
diff --git a/library/debug.c b/library/debug.c
deleted file mode 100644
index 0c46c06..0000000
--- a/library/debug.c
+++ /dev/null
@@ -1,438 +0,0 @@
-/*
- *  Debugging routines
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_DEBUG_C)
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc      calloc
-#define mbedtls_free        free
-#define mbedtls_time_t      time_t
-#define mbedtls_snprintf    snprintf
-#define mbedtls_vsnprintf   vsnprintf
-#endif
-
-#include "mbedtls/debug.h"
-
-#include <stdarg.h>
-#include <stdio.h>
-#include <string.h>
-
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
-#define DEBUG_BUF_SIZE      512
-
-static int debug_threshold = 0;
-
-void mbedtls_debug_set_threshold( int threshold )
-{
-    debug_threshold = threshold;
-}
-
-/*
- * All calls to f_dbg must be made via this function
- */
-static inline void debug_send_line( const mbedtls_ssl_context *ssl, int level,
-                                    const char *file, int line,
-                                    const char *str )
-{
-    /*
-     * If in a threaded environment, we need a thread identifier.
-     * Since there is no portable way to get one, use the address of the ssl
-     * context instead, as it shouldn't be shared between threads.
-     */
-#if defined(MBEDTLS_THREADING_C)
-    char idstr[20 + DEBUG_BUF_SIZE]; /* 0x + 16 nibbles + ': ' */
-    mbedtls_snprintf( idstr, sizeof( idstr ), "%p: %s", (void*)ssl, str );
-    ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, idstr );
-#else
-    ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str );
-#endif
-}
-
-void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
-                              const char *file, int line,
-                              const char *format, ... )
-{
-    va_list argp;
-    char str[DEBUG_BUF_SIZE];
-    int ret;
-
-    if( NULL == ssl              ||
-        NULL == ssl->conf        ||
-        NULL == ssl->conf->f_dbg ||
-        level > debug_threshold )
-    {
-        return;
-    }
-
-    va_start( argp, format );
-    ret = mbedtls_vsnprintf( str, DEBUG_BUF_SIZE, format, argp );
-    va_end( argp );
-
-    if( ret >= 0 && ret < DEBUG_BUF_SIZE - 1 )
-    {
-        str[ret]     = '\n';
-        str[ret + 1] = '\0';
-    }
-
-    debug_send_line( ssl, level, file, line, str );
-}
-
-void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level,
-                      const char *file, int line,
-                      const char *text, int ret )
-{
-    char str[DEBUG_BUF_SIZE];
-
-    if( NULL == ssl              ||
-        NULL == ssl->conf        ||
-        NULL == ssl->conf->f_dbg ||
-        level > debug_threshold )
-    {
-        return;
-    }
-
-    /*
-     * With non-blocking I/O and examples that just retry immediately,
-     * the logs would be quickly flooded with WANT_READ, so ignore that.
-     * Don't ignore WANT_WRITE however, since is is usually rare.
-     */
-    if( ret == MBEDTLS_ERR_SSL_WANT_READ )
-        return;
-
-    mbedtls_snprintf( str, sizeof( str ), "%s() returned %d (-0x%04x)\n",
-              text, ret, -ret );
-
-    debug_send_line( ssl, level, file, line, str );
-}
-
-void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
-                      const char *file, int line, const char *text,
-                      const unsigned char *buf, size_t len )
-{
-    char str[DEBUG_BUF_SIZE];
-    char txt[17];
-    size_t i, idx = 0;
-
-    if( NULL == ssl              ||
-        NULL == ssl->conf        ||
-        NULL == ssl->conf->f_dbg ||
-        level > debug_threshold )
-    {
-        return;
-    }
-
-    mbedtls_snprintf( str + idx, sizeof( str ) - idx, "dumping '%s' (%u bytes)\n",
-              text, (unsigned int) len );
-
-    debug_send_line( ssl, level, file, line, str );
-
-    idx = 0;
-    memset( txt, 0, sizeof( txt ) );
-    for( i = 0; i < len; i++ )
-    {
-        if( i >= 4096 )
-            break;
-
-        if( i % 16 == 0 )
-        {
-            if( i > 0 )
-            {
-                mbedtls_snprintf( str + idx, sizeof( str ) - idx, "  %s\n", txt );
-                debug_send_line( ssl, level, file, line, str );
-
-                idx = 0;
-                memset( txt, 0, sizeof( txt ) );
-            }
-
-            idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, "%04x: ",
-                             (unsigned int) i );
-
-        }
-
-        idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x",
-                         (unsigned int) buf[i] );
-        txt[i % 16] = ( buf[i] > 31 && buf[i] < 127 ) ? buf[i] : '.' ;
-    }
-
-    if( len > 0 )
-    {
-        for( /* i = i */; i % 16 != 0; i++ )
-            idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, "   " );
-
-        mbedtls_snprintf( str + idx, sizeof( str ) - idx, "  %s\n", txt );
-        debug_send_line( ssl, level, file, line, str );
-    }
-}
-
-#if defined(MBEDTLS_ECP_C)
-void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level,
-                      const char *file, int line,
-                      const char *text, const mbedtls_ecp_point *X )
-{
-    char str[DEBUG_BUF_SIZE];
-
-    if( NULL == ssl              ||
-        NULL == ssl->conf        ||
-        NULL == ssl->conf->f_dbg ||
-        level > debug_threshold )
-    {
-        return;
-    }
-
-    mbedtls_snprintf( str, sizeof( str ), "%s(X)", text );
-    mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->X );
-
-    mbedtls_snprintf( str, sizeof( str ), "%s(Y)", text );
-    mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->Y );
-}
-#endif /* MBEDTLS_ECP_C */
-
-#if defined(MBEDTLS_BIGNUM_C)
-void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level,
-                      const char *file, int line,
-                      const char *text, const mbedtls_mpi *X )
-{
-    char str[DEBUG_BUF_SIZE];
-    int j, k, zeros = 1;
-    size_t i, n, idx = 0;
-
-    if( NULL == ssl              ||
-        NULL == ssl->conf        ||
-        NULL == ssl->conf->f_dbg ||
-        NULL == X                ||
-        level > debug_threshold )
-    {
-        return;
-    }
-
-    for( n = X->n - 1; n > 0; n-- )
-        if( X->p[n] != 0 )
-            break;
-
-    for( j = ( sizeof(mbedtls_mpi_uint) << 3 ) - 1; j >= 0; j-- )
-        if( ( ( X->p[n] >> j ) & 1 ) != 0 )
-            break;
-
-    mbedtls_snprintf( str + idx, sizeof( str ) - idx, "value of '%s' (%d bits) is:\n",
-              text, (int) ( ( n * ( sizeof(mbedtls_mpi_uint) << 3 ) ) + j + 1 ) );
-
-    debug_send_line( ssl, level, file, line, str );
-
-    idx = 0;
-    for( i = n + 1, j = 0; i > 0; i-- )
-    {
-        if( zeros && X->p[i - 1] == 0 )
-            continue;
-
-        for( k = sizeof( mbedtls_mpi_uint ) - 1; k >= 0; k-- )
-        {
-            if( zeros && ( ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF ) == 0 )
-                continue;
-            else
-                zeros = 0;
-
-            if( j % 16 == 0 )
-            {
-                if( j > 0 )
-                {
-                    mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" );
-                    debug_send_line( ssl, level, file, line, str );
-                    idx = 0;
-                }
-            }
-
-            idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x", (unsigned int)
-                             ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF );
-
-            j++;
-        }
-
-    }
-
-    if( zeros == 1 )
-        idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " 00" );
-
-    mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" );
-    debug_send_line( ssl, level, file, line, str );
-}
-#endif /* MBEDTLS_BIGNUM_C */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-static void debug_print_pk( const mbedtls_ssl_context *ssl, int level,
-                            const char *file, int line,
-                            const char *text, const mbedtls_pk_context *pk )
-{
-    size_t i;
-    mbedtls_pk_debug_item items[MBEDTLS_PK_DEBUG_MAX_ITEMS];
-    char name[16];
-
-    memset( items, 0, sizeof( items ) );
-
-    if( mbedtls_pk_debug( pk, items ) != 0 )
-    {
-        debug_send_line( ssl, level, file, line,
-                          "invalid PK context\n" );
-        return;
-    }
-
-    for( i = 0; i < MBEDTLS_PK_DEBUG_MAX_ITEMS; i++ )
-    {
-        if( items[i].type == MBEDTLS_PK_DEBUG_NONE )
-            return;
-
-        mbedtls_snprintf( name, sizeof( name ), "%s%s", text, items[i].name );
-        name[sizeof( name ) - 1] = '\0';
-
-        if( items[i].type == MBEDTLS_PK_DEBUG_MPI )
-            mbedtls_debug_print_mpi( ssl, level, file, line, name, items[i].value );
-        else
-#if defined(MBEDTLS_ECP_C)
-        if( items[i].type == MBEDTLS_PK_DEBUG_ECP )
-            mbedtls_debug_print_ecp( ssl, level, file, line, name, items[i].value );
-        else
-#endif
-            debug_send_line( ssl, level, file, line,
-                              "should not happen\n" );
-    }
-}
-
-static void debug_print_line_by_line( const mbedtls_ssl_context *ssl, int level,
-                                      const char *file, int line, const char *text )
-{
-    char str[DEBUG_BUF_SIZE];
-    const char *start, *cur;
-
-    start = text;
-    for( cur = text; *cur != '\0'; cur++ )
-    {
-        if( *cur == '\n' )
-        {
-            size_t len = cur - start + 1;
-            if( len > DEBUG_BUF_SIZE - 1 )
-                len = DEBUG_BUF_SIZE - 1;
-
-            memcpy( str, start, len );
-            str[len] = '\0';
-
-            debug_send_line( ssl, level, file, line, str );
-
-            start = cur + 1;
-        }
-    }
-}
-
-void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level,
-                      const char *file, int line,
-                      const char *text, const mbedtls_x509_crt *crt )
-{
-    char str[DEBUG_BUF_SIZE];
-    int i = 0;
-
-    if( NULL == ssl              ||
-        NULL == ssl->conf        ||
-        NULL == ssl->conf->f_dbg ||
-        NULL == crt              ||
-        level > debug_threshold )
-    {
-        return;
-    }
-
-    while( crt != NULL )
-    {
-        char buf[1024];
-
-        mbedtls_snprintf( str, sizeof( str ), "%s #%d:\n", text, ++i );
-        debug_send_line( ssl, level, file, line, str );
-
-        mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt );
-        debug_print_line_by_line( ssl, level, file, line, buf );
-
-        debug_print_pk( ssl, level, file, line, "crt->", &crt->pk );
-
-        crt = crt->next;
-    }
-}
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_ECDH_C)
-static void mbedtls_debug_printf_ecdh_internal( const mbedtls_ssl_context *ssl,
-                                                int level, const char *file,
-                                                int line,
-                                                const mbedtls_ecdh_context *ecdh,
-                                                mbedtls_debug_ecdh_attr attr )
-{
-#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
-    const mbedtls_ecdh_context* ctx = ecdh;
-#else
-    const mbedtls_ecdh_context_mbed* ctx = &ecdh->ctx.mbed_ecdh;
-#endif
-
-    switch( attr )
-    {
-        case MBEDTLS_DEBUG_ECDH_Q:
-            mbedtls_debug_print_ecp( ssl, level, file, line, "ECDH: Q",
-                                     &ctx->Q );
-            break;
-        case MBEDTLS_DEBUG_ECDH_QP:
-            mbedtls_debug_print_ecp( ssl, level, file, line, "ECDH: Qp",
-                                     &ctx->Qp );
-            break;
-        case MBEDTLS_DEBUG_ECDH_Z:
-            mbedtls_debug_print_mpi( ssl, level, file, line, "ECDH: z",
-                                     &ctx->z );
-            break;
-        default:
-            break;
-    }
-}
-
-void mbedtls_debug_printf_ecdh( const mbedtls_ssl_context *ssl, int level,
-                                const char *file, int line,
-                                const mbedtls_ecdh_context *ecdh,
-                                mbedtls_debug_ecdh_attr attr )
-{
-#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
-    mbedtls_debug_printf_ecdh_internal( ssl, level, file, line, ecdh, attr );
-#else
-    switch( ecdh->var )
-    {
-        default:
-            mbedtls_debug_printf_ecdh_internal( ssl, level, file, line, ecdh,
-                                                attr );
-    }
-#endif
-}
-#endif /* MBEDTLS_ECDH_C */
-
-#endif /* MBEDTLS_DEBUG_C */
diff --git a/library/des.c b/library/des.c
index ca9e071..8a33d82 100644
--- a/library/des.c
+++ b/library/des.c
@@ -257,50 +257,57 @@
 /*
  * Initial Permutation macro
  */
-#define DES_IP(X,Y)                                             \
-{                                                               \
-    T = ((X >>  4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T <<  4);   \
-    T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16);   \
-    T = ((Y >>  2) ^ X) & 0x33333333; X ^= T; Y ^= (T <<  2);   \
-    T = ((Y >>  8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T <<  8);   \
-    Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF;                    \
-    T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T;                   \
-    X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF;                    \
-}
+#define DES_IP(X,Y)                                                       \
+    do                                                                    \
+    {                                                                     \
+        T = (((X) >>  4) ^ (Y)) & 0x0F0F0F0F; (Y) ^= T; (X) ^= (T <<  4); \
+        T = (((X) >> 16) ^ (Y)) & 0x0000FFFF; (Y) ^= T; (X) ^= (T << 16); \
+        T = (((Y) >>  2) ^ (X)) & 0x33333333; (X) ^= T; (Y) ^= (T <<  2); \
+        T = (((Y) >>  8) ^ (X)) & 0x00FF00FF; (X) ^= T; (Y) ^= (T <<  8); \
+        (Y) = (((Y) << 1) | ((Y) >> 31)) & 0xFFFFFFFF;                    \
+        T = ((X) ^ (Y)) & 0xAAAAAAAA; (Y) ^= T; (X) ^= T;                 \
+        (X) = (((X) << 1) | ((X) >> 31)) & 0xFFFFFFFF;                    \
+    } while( 0 )
 
 /*
  * Final Permutation macro
  */
-#define DES_FP(X,Y)                                             \
-{                                                               \
-    X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF;                    \
-    T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T;                   \
-    Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF;                    \
-    T = ((Y >>  8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T <<  8);   \
-    T = ((Y >>  2) ^ X) & 0x33333333; X ^= T; Y ^= (T <<  2);   \
-    T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16);   \
-    T = ((X >>  4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T <<  4);   \
-}
+#define DES_FP(X,Y)                                                       \
+    do                                                                    \
+    {                                                                     \
+        (X) = (((X) << 31) | ((X) >> 1)) & 0xFFFFFFFF;                    \
+        T = ((X) ^ (Y)) & 0xAAAAAAAA; (X) ^= T; (Y) ^= T;                 \
+        (Y) = (((Y) << 31) | ((Y) >> 1)) & 0xFFFFFFFF;                    \
+        T = (((Y) >>  8) ^ (X)) & 0x00FF00FF; (X) ^= T; (Y) ^= (T <<  8); \
+        T = (((Y) >>  2) ^ (X)) & 0x33333333; (X) ^= T; (Y) ^= (T <<  2); \
+        T = (((X) >> 16) ^ (Y)) & 0x0000FFFF; (Y) ^= T; (X) ^= (T << 16); \
+        T = (((X) >>  4) ^ (Y)) & 0x0F0F0F0F; (Y) ^= T; (X) ^= (T <<  4); \
+    } while( 0 )
 
 /*
  * DES round macro
  */
-#define DES_ROUND(X,Y)                          \
-{                                               \
-    T = *SK++ ^ X;                              \
-    Y ^= SB8[ (T      ) & 0x3F ] ^              \
-         SB6[ (T >>  8) & 0x3F ] ^              \
-         SB4[ (T >> 16) & 0x3F ] ^              \
-         SB2[ (T >> 24) & 0x3F ];               \
-                                                \
-    T = *SK++ ^ ((X << 28) | (X >> 4));         \
-    Y ^= SB7[ (T      ) & 0x3F ] ^              \
-         SB5[ (T >>  8) & 0x3F ] ^              \
-         SB3[ (T >> 16) & 0x3F ] ^              \
-         SB1[ (T >> 24) & 0x3F ];               \
-}
+#define DES_ROUND(X,Y)                              \
+    do                                              \
+    {                                               \
+        T = *SK++ ^ (X);                            \
+        (Y) ^= SB8[ (T      ) & 0x3F ] ^            \
+               SB6[ (T >>  8) & 0x3F ] ^            \
+               SB4[ (T >> 16) & 0x3F ] ^            \
+               SB2[ (T >> 24) & 0x3F ];             \
+                                                    \
+        T = *SK++ ^ (((X) << 28) | ((X) >> 4));     \
+        (Y) ^= SB7[ (T      ) & 0x3F ] ^            \
+               SB5[ (T >>  8) & 0x3F ] ^            \
+               SB3[ (T >> 16) & 0x3F ] ^            \
+               SB1[ (T >> 24) & 0x3F ];             \
+    } while( 0 )
 
-#define SWAP(a,b) { uint32_t t = a; a = b; b = t; t = 0; }
+#define SWAP(a,b)                                       \
+    do                                                  \
+    {                                                   \
+        uint32_t t = (a); (a) = (b); (b) = t; t = 0;    \
+    } while( 0 )
 
 void mbedtls_des_init( mbedtls_des_context *ctx )
 {
diff --git a/library/ecp.c b/library/ecp.c
index e8df2fd..03f5fef 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -1073,25 +1073,29 @@
 #define INC_MUL_COUNT
 #endif
 
-#define MOD_MUL( N )    do { MBEDTLS_MPI_CHK( ecp_modp( &N, grp ) ); INC_MUL_COUNT } \
-                        while( 0 )
+#define MOD_MUL( N )                                                    \
+    do                                                                  \
+    {                                                                   \
+        MBEDTLS_MPI_CHK( ecp_modp( &(N), grp ) );                       \
+        INC_MUL_COUNT                                                   \
+    } while( 0 )
 
 /*
  * Reduce a mbedtls_mpi mod p in-place, to use after mbedtls_mpi_sub_mpi
  * N->s < 0 is a very fast test, which fails only if N is 0
  */
-#define MOD_SUB( N )                                \
-    while( N.s < 0 && mbedtls_mpi_cmp_int( &N, 0 ) != 0 )   \
-        MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &N, &N, &grp->P ) )
+#define MOD_SUB( N )                                                    \
+    while( (N).s < 0 && mbedtls_mpi_cmp_int( &(N), 0 ) != 0 )           \
+        MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &(N), &(N), &grp->P ) )
 
 /*
  * Reduce a mbedtls_mpi mod p in-place, to use after mbedtls_mpi_add_mpi and mbedtls_mpi_mul_int.
  * We known P, N and the result are positive, so sub_abs is correct, and
  * a bit faster.
  */
-#define MOD_ADD( N )                                \
-    while( mbedtls_mpi_cmp_mpi( &N, &grp->P ) >= 0 )        \
-        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( &N, &N, &grp->P ) )
+#define MOD_ADD( N )                                                    \
+    while( mbedtls_mpi_cmp_mpi( &(N), &grp->P ) >= 0 )                  \
+        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( &(N), &(N), &grp->P ) )
 
 #if defined(ECP_SHORTWEIERSTRASS)
 /*
diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index 731621d..282481d 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -51,11 +51,11 @@
  */
 #if defined(MBEDTLS_HAVE_INT32)
 
-#define BYTES_TO_T_UINT_4( a, b, c, d )             \
-    ( (mbedtls_mpi_uint) a <<  0 ) |                          \
-    ( (mbedtls_mpi_uint) b <<  8 ) |                          \
-    ( (mbedtls_mpi_uint) c << 16 ) |                          \
-    ( (mbedtls_mpi_uint) d << 24 )
+#define BYTES_TO_T_UINT_4( a, b, c, d )                       \
+    ( (mbedtls_mpi_uint) (a) <<  0 ) |                        \
+    ( (mbedtls_mpi_uint) (b) <<  8 ) |                        \
+    ( (mbedtls_mpi_uint) (c) << 16 ) |                        \
+    ( (mbedtls_mpi_uint) (d) << 24 )
 
 #define BYTES_TO_T_UINT_2( a, b )                   \
     BYTES_TO_T_UINT_4( a, b, 0, 0 )
@@ -67,14 +67,14 @@
 #else /* 64-bits */
 
 #define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
-    ( (mbedtls_mpi_uint) a <<  0 ) |                          \
-    ( (mbedtls_mpi_uint) b <<  8 ) |                          \
-    ( (mbedtls_mpi_uint) c << 16 ) |                          \
-    ( (mbedtls_mpi_uint) d << 24 ) |                          \
-    ( (mbedtls_mpi_uint) e << 32 ) |                          \
-    ( (mbedtls_mpi_uint) f << 40 ) |                          \
-    ( (mbedtls_mpi_uint) g << 48 ) |                          \
-    ( (mbedtls_mpi_uint) h << 56 )
+    ( (mbedtls_mpi_uint) (a) <<  0 ) |                        \
+    ( (mbedtls_mpi_uint) (b) <<  8 ) |                        \
+    ( (mbedtls_mpi_uint) (c) << 16 ) |                        \
+    ( (mbedtls_mpi_uint) (d) << 24 ) |                        \
+    ( (mbedtls_mpi_uint) (e) << 32 ) |                        \
+    ( (mbedtls_mpi_uint) (f) << 40 ) |                        \
+    ( (mbedtls_mpi_uint) (g) << 48 ) |                        \
+    ( (mbedtls_mpi_uint) (h) << 56 )
 
 #define BYTES_TO_T_UINT_4( a, b, c, d )             \
     BYTES_TO_T_UINT_8( a, b, c, d, 0, 0, 0, 0 )
@@ -890,7 +890,7 @@
 }
 
 #define WIDTH       8 / sizeof( mbedtls_mpi_uint )
-#define A( i )      N->p + i * WIDTH
+#define A( i )      N->p + (i) * WIDTH
 #define ADD( i )    add64( p, A( i ), &c )
 #define NEXT        p += WIDTH; carry64( p, &c )
 #define LAST        p += WIDTH; *p = c; while( ++p < end ) *p = 0
@@ -955,7 +955,8 @@
 #else                               /* 64-bit */
 
 #define MAX32       N->n * 2
-#define A( j ) j % 2 ? (uint32_t)( N->p[j/2] >> 32 ) : (uint32_t)( N->p[j/2] )
+#define A( j ) (j) % 2 ? (uint32_t)( N->p[(j)/2] >> 32 ) : \
+                         (uint32_t)( N->p[(j)/2] )
 #define STORE32                                   \
     if( i % 2 ) {                                 \
         N->p[i/2] &= 0x00000000FFFFFFFF;          \
@@ -989,20 +990,21 @@
  * Helpers for the main 'loop'
  * (see fix_negative for the motivation of C)
  */
-#define INIT( b )                                           \
-    int ret;                                                \
-    signed char c = 0, cc;                                  \
-    uint32_t cur;                                           \
-    size_t i = 0, bits = b;                                 \
-    mbedtls_mpi C;                                                  \
-    mbedtls_mpi_uint Cp[ b / 8 / sizeof( mbedtls_mpi_uint) + 1 ];               \
-                                                            \
-    C.s = 1;                                                \
-    C.n = b / 8 / sizeof( mbedtls_mpi_uint) + 1;                      \
-    C.p = Cp;                                               \
-    memset( Cp, 0, C.n * sizeof( mbedtls_mpi_uint ) );                \
-                                                            \
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( N, b * 2 / 8 / sizeof( mbedtls_mpi_uint ) ) ); \
+#define INIT( b )                                                       \
+    int ret;                                                            \
+    signed char c = 0, cc;                                              \
+    uint32_t cur;                                                       \
+    size_t i = 0, bits = (b);                                           \
+    mbedtls_mpi C;                                                      \
+    mbedtls_mpi_uint Cp[ (b) / 8 / sizeof( mbedtls_mpi_uint) + 1 ];     \
+                                                                        \
+    C.s = 1;                                                            \
+    C.n = (b) / 8 / sizeof( mbedtls_mpi_uint) + 1;                      \
+    C.p = Cp;                                                           \
+    memset( Cp, 0, C.n * sizeof( mbedtls_mpi_uint ) );                  \
+                                                                        \
+    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( N, (b) * 2 / 8 /                 \
+                                       sizeof( mbedtls_mpi_uint ) ) );  \
     LOAD32;
 
 #define NEXT                    \
diff --git a/library/error.c b/library/error.c
index c596f0b..7d7155b 100644
--- a/library/error.c
+++ b/library/error.c
@@ -137,10 +137,6 @@
 #include "mbedtls/md5.h"
 #endif
 
-#if defined(MBEDTLS_NET_C)
-#include "mbedtls/net_sockets.h"
-#endif
-
 #if defined(MBEDTLS_OID_C)
 #include "mbedtls/oid.h"
 #endif
@@ -193,18 +189,10 @@
 #include "mbedtls/sha512.h"
 #endif
 
-#if defined(MBEDTLS_SSL_TLS_C)
-#include "mbedtls/ssl.h"
-#endif
-
 #if defined(MBEDTLS_THREADING_C)
 #include "mbedtls/threading.h"
 #endif
 
-#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
-#include "mbedtls/x509.h"
-#endif
-
 #if defined(MBEDTLS_XTEA_C)
 #include "mbedtls/xtea.h"
 #endif
@@ -410,165 +398,6 @@
         if( use_ret == -(MBEDTLS_ERR_RSA_HW_ACCEL_FAILED) )
             mbedtls_snprintf( buf, buflen, "RSA - RSA hardware accelerator failed" );
 #endif /* MBEDTLS_RSA_C */
-
-#if defined(MBEDTLS_SSL_TLS_C)
-        if( use_ret == -(MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE) )
-            mbedtls_snprintf( buf, buflen, "SSL - The requested feature is not available" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_INPUT_DATA) )
-            mbedtls_snprintf( buf, buflen, "SSL - Bad input parameters to function" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_MAC) )
-            mbedtls_snprintf( buf, buflen, "SSL - Verification of the message MAC failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_RECORD) )
-            mbedtls_snprintf( buf, buflen, "SSL - An invalid SSL record was received" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_CONN_EOF) )
-            mbedtls_snprintf( buf, buflen, "SSL - The connection indicated an EOF" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_CIPHER) )
-            mbedtls_snprintf( buf, buflen, "SSL - An unknown cipher was received" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN) )
-            mbedtls_snprintf( buf, buflen, "SSL - The server has no ciphersuites in common with the client" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_NO_RNG) )
-            mbedtls_snprintf( buf, buflen, "SSL - No RNG was provided to the SSL module" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE) )
-            mbedtls_snprintf( buf, buflen, "SSL - No client certification received from the client, but required by the authentication mode" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE) )
-            mbedtls_snprintf( buf, buflen, "SSL - Our own certificate(s) is/are too large to send in an SSL message" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED) )
-            mbedtls_snprintf( buf, buflen, "SSL - The own certificate is not set, but needed by the server" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED) )
-            mbedtls_snprintf( buf, buflen, "SSL - The own private key or pre-shared key is not set, but needed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED) )
-            mbedtls_snprintf( buf, buflen, "SSL - No CA Chain is set, but required to operate" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE) )
-            mbedtls_snprintf( buf, buflen, "SSL - An unexpected message was received from our peer" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE) )
-        {
-            mbedtls_snprintf( buf, buflen, "SSL - A fatal alert message was received from our peer" );
-            return;
-        }
-        if( use_ret == -(MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED) )
-            mbedtls_snprintf( buf, buflen, "SSL - Verification of our peer failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) )
-            mbedtls_snprintf( buf, buflen, "SSL - The peer notified us that the connection is going to be closed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientHello handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHello handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the Certificate handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateRequest handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerKeyExchange handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHelloDone handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateVerify handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the ChangeCipherSpec handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_FINISHED) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the Finished handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_ALLOC_FAILED) )
-            mbedtls_snprintf( buf, buflen, "SSL - Memory allocation failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FAILED) )
-            mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function returned with error" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH) )
-            mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function skipped / left alone data" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_COMPRESSION_FAILED) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the compression / decompression failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION) )
-            mbedtls_snprintf( buf, buflen, "SSL - Handshake protocol not within min/max boundaries" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET) )
-            mbedtls_snprintf( buf, buflen, "SSL - Processing of the NewSessionTicket handshake message failed" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED) )
-            mbedtls_snprintf( buf, buflen, "SSL - Session ticket has expired" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH) )
-            mbedtls_snprintf( buf, buflen, "SSL - Public key type mismatch (eg, asked for RSA key exchange and presented EC key)" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY) )
-            mbedtls_snprintf( buf, buflen, "SSL - Unknown identity received (eg, PSK identity)" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_INTERNAL_ERROR) )
-            mbedtls_snprintf( buf, buflen, "SSL - Internal error (eg, unexpected failure in lower-level module)" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_COUNTER_WRAPPING) )
-            mbedtls_snprintf( buf, buflen, "SSL - A counter would wrap (eg, too many messages exchanged)" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO) )
-            mbedtls_snprintf( buf, buflen, "SSL - Unexpected message at ServerHello in renegotiation" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED) )
-            mbedtls_snprintf( buf, buflen, "SSL - DTLS client must retry for hello verification" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) )
-            mbedtls_snprintf( buf, buflen, "SSL - A buffer is too small to receive or write a message" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE) )
-            mbedtls_snprintf( buf, buflen, "SSL - None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages)" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_WANT_READ) )
-            mbedtls_snprintf( buf, buflen, "SSL - No data of requested type currently available on underlying transport" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_WANT_WRITE) )
-            mbedtls_snprintf( buf, buflen, "SSL - Connection requires a write call" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_TIMEOUT) )
-            mbedtls_snprintf( buf, buflen, "SSL - The operation timed out" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_CLIENT_RECONNECT) )
-            mbedtls_snprintf( buf, buflen, "SSL - The client initiated a reconnect from the same port" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_RECORD) )
-            mbedtls_snprintf( buf, buflen, "SSL - Record header looks valid but is not expected" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_NON_FATAL) )
-            mbedtls_snprintf( buf, buflen, "SSL - The alert message received indicates a non-fatal error" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH) )
-            mbedtls_snprintf( buf, buflen, "SSL - Couldn't set the hash for verifying CertificateVerify" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_CONTINUE_PROCESSING) )
-            mbedtls_snprintf( buf, buflen, "SSL - Internal-only message signaling that further message-processing should be done" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS) )
-            mbedtls_snprintf( buf, buflen, "SSL - The asynchronous operation is not completed yet" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_EARLY_MESSAGE) )
-            mbedtls_snprintf( buf, buflen, "SSL - Internal-only message signaling that a message arrived early" );
-        if( use_ret == -(MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) )
-            mbedtls_snprintf( buf, buflen, "SSL - A cryptographic operation is in progress. Try again later" );
-#endif /* MBEDTLS_SSL_TLS_C */
-
-#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
-        if( use_ret == -(MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE) )
-            mbedtls_snprintf( buf, buflen, "X509 - Unavailable feature, e.g. RSA hashing/encryption combination" );
-        if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_OID) )
-            mbedtls_snprintf( buf, buflen, "X509 - Requested OID is unknown" );
-        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_FORMAT) )
-            mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR format is invalid, e.g. different type expected" );
-        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_VERSION) )
-            mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR version element is invalid" );
-        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SERIAL) )
-            mbedtls_snprintf( buf, buflen, "X509 - The serial tag or value is invalid" );
-        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_ALG) )
-            mbedtls_snprintf( buf, buflen, "X509 - The algorithm tag or value is invalid" );
-        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_NAME) )
-            mbedtls_snprintf( buf, buflen, "X509 - The name tag or value is invalid" );
-        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_DATE) )
-            mbedtls_snprintf( buf, buflen, "X509 - The date tag or value is invalid" );
-        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SIGNATURE) )
-            mbedtls_snprintf( buf, buflen, "X509 - The signature tag or value invalid" );
-        if( use_ret == -(MBEDTLS_ERR_X509_INVALID_EXTENSIONS) )
-            mbedtls_snprintf( buf, buflen, "X509 - The extension tag or value is invalid" );
-        if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_VERSION) )
-            mbedtls_snprintf( buf, buflen, "X509 - CRT/CRL/CSR has an unsupported version number" );
-        if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG) )
-            mbedtls_snprintf( buf, buflen, "X509 - Signature algorithm (oid) is unsupported" );
-        if( use_ret == -(MBEDTLS_ERR_X509_SIG_MISMATCH) )
-            mbedtls_snprintf( buf, buflen, "X509 - Signature algorithms do not match. (see \\c ::mbedtls_x509_crt sig_oid)" );
-        if( use_ret == -(MBEDTLS_ERR_X509_CERT_VERIFY_FAILED) )
-            mbedtls_snprintf( buf, buflen, "X509 - Certificate verification failed, e.g. CRL, CA or signature check failed" );
-        if( use_ret == -(MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT) )
-            mbedtls_snprintf( buf, buflen, "X509 - Format not recognized as DER or PEM" );
-        if( use_ret == -(MBEDTLS_ERR_X509_BAD_INPUT_DATA) )
-            mbedtls_snprintf( buf, buflen, "X509 - Input invalid" );
-        if( use_ret == -(MBEDTLS_ERR_X509_ALLOC_FAILED) )
-            mbedtls_snprintf( buf, buflen, "X509 - Allocation of memory failed" );
-        if( use_ret == -(MBEDTLS_ERR_X509_FILE_IO_ERROR) )
-            mbedtls_snprintf( buf, buflen, "X509 - Read/write of file failed" );
-        if( use_ret == -(MBEDTLS_ERR_X509_BUFFER_TOO_SMALL) )
-            mbedtls_snprintf( buf, buflen, "X509 - Destination buffer is too small" );
-        if( use_ret == -(MBEDTLS_ERR_X509_FATAL_ERROR) )
-            mbedtls_snprintf( buf, buflen, "X509 - A fatal error occurred, eg the chain is too long or the vrfy callback failed" );
-#endif /* MBEDTLS_X509_USE_C || MBEDTLS_X509_CREATE_C */
         // END generated code
 
         if( strlen( buf ) == 0 )
@@ -790,35 +619,6 @@
         mbedtls_snprintf( buf, buflen, "MD5 - MD5 hardware accelerator failed" );
 #endif /* MBEDTLS_MD5_C */
 
-#if defined(MBEDTLS_NET_C)
-    if( use_ret == -(MBEDTLS_ERR_NET_SOCKET_FAILED) )
-        mbedtls_snprintf( buf, buflen, "NET - Failed to open a socket" );
-    if( use_ret == -(MBEDTLS_ERR_NET_CONNECT_FAILED) )
-        mbedtls_snprintf( buf, buflen, "NET - The connection to the given server / port failed" );
-    if( use_ret == -(MBEDTLS_ERR_NET_BIND_FAILED) )
-        mbedtls_snprintf( buf, buflen, "NET - Binding of the socket failed" );
-    if( use_ret == -(MBEDTLS_ERR_NET_LISTEN_FAILED) )
-        mbedtls_snprintf( buf, buflen, "NET - Could not listen on the socket" );
-    if( use_ret == -(MBEDTLS_ERR_NET_ACCEPT_FAILED) )
-        mbedtls_snprintf( buf, buflen, "NET - Could not accept the incoming connection" );
-    if( use_ret == -(MBEDTLS_ERR_NET_RECV_FAILED) )
-        mbedtls_snprintf( buf, buflen, "NET - Reading information from the socket failed" );
-    if( use_ret == -(MBEDTLS_ERR_NET_SEND_FAILED) )
-        mbedtls_snprintf( buf, buflen, "NET - Sending information through the socket failed" );
-    if( use_ret == -(MBEDTLS_ERR_NET_CONN_RESET) )
-        mbedtls_snprintf( buf, buflen, "NET - Connection was reset by peer" );
-    if( use_ret == -(MBEDTLS_ERR_NET_UNKNOWN_HOST) )
-        mbedtls_snprintf( buf, buflen, "NET - Failed to get an IP address for the given hostname" );
-    if( use_ret == -(MBEDTLS_ERR_NET_BUFFER_TOO_SMALL) )
-        mbedtls_snprintf( buf, buflen, "NET - Buffer is too small to hold the data" );
-    if( use_ret == -(MBEDTLS_ERR_NET_INVALID_CONTEXT) )
-        mbedtls_snprintf( buf, buflen, "NET - The context is invalid, eg because it was free()ed" );
-    if( use_ret == -(MBEDTLS_ERR_NET_POLL_FAILED) )
-        mbedtls_snprintf( buf, buflen, "NET - Polling the net context failed" );
-    if( use_ret == -(MBEDTLS_ERR_NET_BAD_INPUT_DATA) )
-        mbedtls_snprintf( buf, buflen, "NET - Input invalid" );
-#endif /* MBEDTLS_NET_C */
-
 #if defined(MBEDTLS_OID_C)
     if( use_ret == -(MBEDTLS_ERR_OID_NOT_FOUND) )
         mbedtls_snprintf( buf, buflen, "OID - OID is not found" );
diff --git a/library/havege.c b/library/havege.c
index 4dcac02..54f897c 100644
--- a/library/havege.c
+++ b/library/havege.c
@@ -54,7 +54,7 @@
  * ------------------------------------------------------------------------
  */
 
-#define SWAP(X,Y) { int *T = X; X = Y; Y = T; }
+#define SWAP(X,Y) { int *T = (X); (X) = (Y); (Y) = T; }
 
 #define TST1_ENTER if( PTEST & 1 ) { PTEST ^= 3; PTEST >>= 1;
 #define TST2_ENTER if( PTEST & 1 ) { PTEST ^= 3; PTEST >>= 1;
diff --git a/library/md4.c b/library/md4.c
index 3f8ddff..828fd42 100644
--- a/library/md4.c
+++ b/library/md4.c
@@ -137,15 +137,21 @@
     GET_UINT32_LE( X[14], data, 56 );
     GET_UINT32_LE( X[15], data, 60 );
 
-#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
+#define S(x,n) (((x) << (n)) | (((x) & 0xFFFFFFFF) >> (32 - (n))))
 
     A = ctx->state[0];
     B = ctx->state[1];
     C = ctx->state[2];
     D = ctx->state[3];
 
-#define F(x, y, z) ((x & y) | ((~x) & z))
-#define P(a,b,c,d,x,s) { a += F(b,c,d) + x; a = S(a,s); }
+#define F(x, y, z) (((x) & (y)) | ((~(x)) & (z)))
+#define P(a,b,c,d,x,s)                           \
+    do                                           \
+    {                                            \
+        (a) += F((b),(c),(d)) + (x);             \
+        (a) = S((a),(s));                        \
+    } while( 0 )
+
 
     P( A, B, C, D, X[ 0],  3 );
     P( D, A, B, C, X[ 1],  7 );
@@ -167,8 +173,13 @@
 #undef P
 #undef F
 
-#define F(x,y,z) ((x & y) | (x & z) | (y & z))
-#define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x5A827999; a = S(a,s); }
+#define F(x,y,z) (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
+#define P(a,b,c,d,x,s)                          \
+    do                                          \
+    {                                           \
+        (a) += F((b),(c),(d)) + (x) + 0x5A827999;       \
+        (a) = S((a),(s));                               \
+    } while( 0 )
 
     P( A, B, C, D, X[ 0],  3 );
     P( D, A, B, C, X[ 4],  5 );
@@ -190,8 +201,13 @@
 #undef P
 #undef F
 
-#define F(x,y,z) (x ^ y ^ z)
-#define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x6ED9EBA1; a = S(a,s); }
+#define F(x,y,z) ((x) ^ (y) ^ (z))
+#define P(a,b,c,d,x,s)                                  \
+    do                                                  \
+    {                                                   \
+        (a) += F((b),(c),(d)) + (x) + 0x6ED9EBA1;       \
+        (a) = S((a),(s));                               \
+    } while( 0 )
 
     P( A, B, C, D, X[ 0],  3 );
     P( D, A, B, C, X[ 8],  9 );
diff --git a/library/md5.c b/library/md5.c
index 2a740cd..a93da8a 100644
--- a/library/md5.c
+++ b/library/md5.c
@@ -136,19 +136,22 @@
     GET_UINT32_LE( X[14], data, 56 );
     GET_UINT32_LE( X[15], data, 60 );
 
-#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
+#define S(x,n)                                                          \
+    ( ( (x) << (n) ) | ( ( (x) & 0xFFFFFFFF) >> ( 32 - (n) ) ) )
 
-#define P(a,b,c,d,k,s,t)                                \
-{                                                       \
-    a += F(b,c,d) + X[k] + t; a = S(a,s) + b;           \
-}
+#define P(a,b,c,d,k,s,t)                                        \
+    do                                                          \
+    {                                                           \
+        (a) += F((b),(c),(d)) + X[(k)] + (t);                   \
+        (a) = S((a),(s)) + (b);                                 \
+    } while( 0 )
 
     A = ctx->state[0];
     B = ctx->state[1];
     C = ctx->state[2];
     D = ctx->state[3];
 
-#define F(x,y,z) (z ^ (x & (y ^ z)))
+#define F(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
 
     P( A, B, C, D,  0,  7, 0xD76AA478 );
     P( D, A, B, C,  1, 12, 0xE8C7B756 );
@@ -169,7 +172,7 @@
 
 #undef F
 
-#define F(x,y,z) (y ^ (z & (x ^ y)))
+#define F(x,y,z) ((y) ^ ((z) & ((x) ^ (y))))
 
     P( A, B, C, D,  1,  5, 0xF61E2562 );
     P( D, A, B, C,  6,  9, 0xC040B340 );
@@ -190,7 +193,7 @@
 
 #undef F
 
-#define F(x,y,z) (x ^ y ^ z)
+#define F(x,y,z) ((x) ^ (y) ^ (z))
 
     P( A, B, C, D,  5,  4, 0xFFFA3942 );
     P( D, A, B, C,  8, 11, 0x8771F681 );
@@ -211,7 +214,7 @@
 
 #undef F
 
-#define F(x,y,z) (y ^ (x | ~z))
+#define F(x,y,z) ((y) ^ ((x) | ~(z)))
 
     P( A, B, C, D,  0,  6, 0xF4292244 );
     P( D, A, B, C,  7, 10, 0x432AFF97 );
diff --git a/library/net_sockets.c b/library/net_sockets.c
deleted file mode 100644
index 816b130..0000000
--- a/library/net_sockets.c
+++ /dev/null
@@ -1,668 +0,0 @@
-/*
- *  TCP/IP or UDP/IP networking functions
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-/* Enable definition of getaddrinfo() even when compiling with -std=c99. Must
- * be set before config.h, which pulls in glibc's features.h indirectly.
- * Harmless on other platforms. */
-#define _POSIX_C_SOURCE 200112L
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_NET_C)
-
-#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
-    !defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && \
-    !defined(__HAIKU__)
-#error "This module only works on Unix and Windows, see MBEDTLS_NET_C in config.h"
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#endif
-
-#include "mbedtls/net_sockets.h"
-
-#include <string.h>
-
-#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
-    !defined(EFI32)
-
-#define IS_EINTR( ret ) ( ( ret ) == WSAEINTR )
-
-#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0501)
-#undef _WIN32_WINNT
-/* Enables getaddrinfo() & Co */
-#define _WIN32_WINNT 0x0501
-#endif
-
-#include <ws2tcpip.h>
-
-#include <winsock2.h>
-#include <windows.h>
-
-#if defined(_MSC_VER)
-#if defined(_WIN32_WCE)
-#pragma comment( lib, "ws2.lib" )
-#else
-#pragma comment( lib, "ws2_32.lib" )
-#endif
-#endif /* _MSC_VER */
-
-#define read(fd,buf,len)        recv( fd, (char*)( buf ), (int)( len ), 0 )
-#define write(fd,buf,len)       send( fd, (char*)( buf ), (int)( len ), 0 )
-#define close(fd)               closesocket(fd)
-
-static int wsa_init_done = 0;
-
-#else /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/time.h>
-#include <unistd.h>
-#include <signal.h>
-#include <fcntl.h>
-#include <netdb.h>
-#include <errno.h>
-
-#define IS_EINTR( ret ) ( ( ret ) == EINTR )
-
-#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
-
-/* Some MS functions want int and MSVC warns if we pass size_t,
- * but the standard functions use socklen_t, so cast only for MSVC */
-#if defined(_MSC_VER)
-#define MSVC_INT_CAST   (int)
-#else
-#define MSVC_INT_CAST
-#endif
-
-#include <stdio.h>
-
-#include <time.h>
-
-#include <stdint.h>
-
-/*
- * Prepare for using the sockets interface
- */
-static int net_prepare( void )
-{
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-    WSADATA wsaData;
-
-    if( wsa_init_done == 0 )
-    {
-        if( WSAStartup( MAKEWORD(2,0), &wsaData ) != 0 )
-            return( MBEDTLS_ERR_NET_SOCKET_FAILED );
-
-        wsa_init_done = 1;
-    }
-#else
-#if !defined(EFIX64) && !defined(EFI32)
-    signal( SIGPIPE, SIG_IGN );
-#endif
-#endif
-    return( 0 );
-}
-
-/*
- * Initialize a context
- */
-void mbedtls_net_init( mbedtls_net_context *ctx )
-{
-    ctx->fd = -1;
-}
-
-/*
- * Initiate a TCP connection with host:port and the given protocol
- */
-int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host,
-                         const char *port, int proto )
-{
-    int ret;
-    struct addrinfo hints, *addr_list, *cur;
-
-    if( ( ret = net_prepare() ) != 0 )
-        return( ret );
-
-    /* Do name resolution with both IPv6 and IPv4 */
-    memset( &hints, 0, sizeof( hints ) );
-    hints.ai_family = AF_UNSPEC;
-    hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
-    hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
-
-    if( getaddrinfo( host, port, &hints, &addr_list ) != 0 )
-        return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
-
-    /* Try the sockaddrs until a connection succeeds */
-    ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
-    for( cur = addr_list; cur != NULL; cur = cur->ai_next )
-    {
-        ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype,
-                            cur->ai_protocol );
-        if( ctx->fd < 0 )
-        {
-            ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
-            continue;
-        }
-
-        if( connect( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) == 0 )
-        {
-            ret = 0;
-            break;
-        }
-
-        close( ctx->fd );
-        ret = MBEDTLS_ERR_NET_CONNECT_FAILED;
-    }
-
-    freeaddrinfo( addr_list );
-
-    return( ret );
-}
-
-/*
- * Create a listening socket on bind_ip:port
- */
-int mbedtls_net_bind( mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto )
-{
-    int n, ret;
-    struct addrinfo hints, *addr_list, *cur;
-
-    if( ( ret = net_prepare() ) != 0 )
-        return( ret );
-
-    /* Bind to IPv6 and/or IPv4, but only in the desired protocol */
-    memset( &hints, 0, sizeof( hints ) );
-    hints.ai_family = AF_UNSPEC;
-    hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
-    hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
-    if( bind_ip == NULL )
-        hints.ai_flags = AI_PASSIVE;
-
-    if( getaddrinfo( bind_ip, port, &hints, &addr_list ) != 0 )
-        return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
-
-    /* Try the sockaddrs until a binding succeeds */
-    ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
-    for( cur = addr_list; cur != NULL; cur = cur->ai_next )
-    {
-        ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype,
-                            cur->ai_protocol );
-        if( ctx->fd < 0 )
-        {
-            ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
-            continue;
-        }
-
-        n = 1;
-        if( setsockopt( ctx->fd, SOL_SOCKET, SO_REUSEADDR,
-                        (const char *) &n, sizeof( n ) ) != 0 )
-        {
-            close( ctx->fd );
-            ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
-            continue;
-        }
-
-        if( bind( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) != 0 )
-        {
-            close( ctx->fd );
-            ret = MBEDTLS_ERR_NET_BIND_FAILED;
-            continue;
-        }
-
-        /* Listen only makes sense for TCP */
-        if( proto == MBEDTLS_NET_PROTO_TCP )
-        {
-            if( listen( ctx->fd, MBEDTLS_NET_LISTEN_BACKLOG ) != 0 )
-            {
-                close( ctx->fd );
-                ret = MBEDTLS_ERR_NET_LISTEN_FAILED;
-                continue;
-            }
-        }
-
-        /* Bind was successful */
-        ret = 0;
-        break;
-    }
-
-    freeaddrinfo( addr_list );
-
-    return( ret );
-
-}
-
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-/*
- * Check if the requested operation would be blocking on a non-blocking socket
- * and thus 'failed' with a negative return value.
- */
-static int net_would_block( const mbedtls_net_context *ctx )
-{
-    ((void) ctx);
-    return( WSAGetLastError() == WSAEWOULDBLOCK );
-}
-#else
-/*
- * Check if the requested operation would be blocking on a non-blocking socket
- * and thus 'failed' with a negative return value.
- *
- * Note: on a blocking socket this function always returns 0!
- */
-static int net_would_block( const mbedtls_net_context *ctx )
-{
-    int err = errno;
-
-    /*
-     * Never return 'WOULD BLOCK' on a non-blocking socket
-     */
-    if( ( fcntl( ctx->fd, F_GETFL ) & O_NONBLOCK ) != O_NONBLOCK )
-    {
-        errno = err;
-        return( 0 );
-    }
-
-    switch( errno = err )
-    {
-#if defined EAGAIN
-        case EAGAIN:
-#endif
-#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN
-        case EWOULDBLOCK:
-#endif
-            return( 1 );
-    }
-    return( 0 );
-}
-#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
-
-/*
- * Accept a connection from a remote client
- */
-int mbedtls_net_accept( mbedtls_net_context *bind_ctx,
-                        mbedtls_net_context *client_ctx,
-                        void *client_ip, size_t buf_size, size_t *ip_len )
-{
-    int ret;
-    int type;
-
-    struct sockaddr_storage client_addr;
-
-#if defined(__socklen_t_defined) || defined(_SOCKLEN_T) ||  \
-    defined(_SOCKLEN_T_DECLARED) || defined(__DEFINED_socklen_t)
-    socklen_t n = (socklen_t) sizeof( client_addr );
-    socklen_t type_len = (socklen_t) sizeof( type );
-#else
-    int n = (int) sizeof( client_addr );
-    int type_len = (int) sizeof( type );
-#endif
-
-    /* Is this a TCP or UDP socket? */
-    if( getsockopt( bind_ctx->fd, SOL_SOCKET, SO_TYPE,
-                    (void *) &type, &type_len ) != 0 ||
-        ( type != SOCK_STREAM && type != SOCK_DGRAM ) )
-    {
-        return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
-    }
-
-    if( type == SOCK_STREAM )
-    {
-        /* TCP: actual accept() */
-        ret = client_ctx->fd = (int) accept( bind_ctx->fd,
-                                             (struct sockaddr *) &client_addr, &n );
-    }
-    else
-    {
-        /* UDP: wait for a message, but keep it in the queue */
-        char buf[1] = { 0 };
-
-        ret = (int) recvfrom( bind_ctx->fd, buf, sizeof( buf ), MSG_PEEK,
-                        (struct sockaddr *) &client_addr, &n );
-
-#if defined(_WIN32)
-        if( ret == SOCKET_ERROR &&
-            WSAGetLastError() == WSAEMSGSIZE )
-        {
-            /* We know buf is too small, thanks, just peeking here */
-            ret = 0;
-        }
-#endif
-    }
-
-    if( ret < 0 )
-    {
-        if( net_would_block( bind_ctx ) != 0 )
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-
-        return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
-    }
-
-    /* UDP: hijack the listening socket to communicate with the client,
-     * then bind a new socket to accept new connections */
-    if( type != SOCK_STREAM )
-    {
-        struct sockaddr_storage local_addr;
-        int one = 1;
-
-        if( connect( bind_ctx->fd, (struct sockaddr *) &client_addr, n ) != 0 )
-            return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
-
-        client_ctx->fd = bind_ctx->fd;
-        bind_ctx->fd   = -1; /* In case we exit early */
-
-        n = sizeof( struct sockaddr_storage );
-        if( getsockname( client_ctx->fd,
-                         (struct sockaddr *) &local_addr, &n ) != 0 ||
-            ( bind_ctx->fd = (int) socket( local_addr.ss_family,
-                                           SOCK_DGRAM, IPPROTO_UDP ) ) < 0 ||
-            setsockopt( bind_ctx->fd, SOL_SOCKET, SO_REUSEADDR,
-                        (const char *) &one, sizeof( one ) ) != 0 )
-        {
-            return( MBEDTLS_ERR_NET_SOCKET_FAILED );
-        }
-
-        if( bind( bind_ctx->fd, (struct sockaddr *) &local_addr, n ) != 0 )
-        {
-            return( MBEDTLS_ERR_NET_BIND_FAILED );
-        }
-    }
-
-    if( client_ip != NULL )
-    {
-        if( client_addr.ss_family == AF_INET )
-        {
-            struct sockaddr_in *addr4 = (struct sockaddr_in *) &client_addr;
-            *ip_len = sizeof( addr4->sin_addr.s_addr );
-
-            if( buf_size < *ip_len )
-                return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
-
-            memcpy( client_ip, &addr4->sin_addr.s_addr, *ip_len );
-        }
-        else
-        {
-            struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) &client_addr;
-            *ip_len = sizeof( addr6->sin6_addr.s6_addr );
-
-            if( buf_size < *ip_len )
-                return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
-
-            memcpy( client_ip, &addr6->sin6_addr.s6_addr, *ip_len);
-        }
-    }
-
-    return( 0 );
-}
-
-/*
- * Set the socket blocking or non-blocking
- */
-int mbedtls_net_set_block( mbedtls_net_context *ctx )
-{
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-    u_long n = 0;
-    return( ioctlsocket( ctx->fd, FIONBIO, &n ) );
-#else
-    return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) & ~O_NONBLOCK ) );
-#endif
-}
-
-int mbedtls_net_set_nonblock( mbedtls_net_context *ctx )
-{
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-    u_long n = 1;
-    return( ioctlsocket( ctx->fd, FIONBIO, &n ) );
-#else
-    return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) | O_NONBLOCK ) );
-#endif
-}
-
-/*
- * Check if data is available on the socket
- */
-
-int mbedtls_net_poll( mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout )
-{
-    int ret;
-    struct timeval tv;
-
-    fd_set read_fds;
-    fd_set write_fds;
-
-    int fd = ctx->fd;
-
-    if( fd < 0 )
-        return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
-
-#if defined(__has_feature)
-#if __has_feature(memory_sanitizer)
-    /* Ensure that memory sanitizers consider read_fds and write_fds as
-     * initialized even on platforms such as Glibc/x86_64 where FD_ZERO
-     * is implemented in assembly. */
-    memset( &read_fds, 0, sizeof( read_fds ) );
-    memset( &write_fds, 0, sizeof( write_fds ) );
-#endif
-#endif
-
-    FD_ZERO( &read_fds );
-    if( rw & MBEDTLS_NET_POLL_READ )
-    {
-        rw &= ~MBEDTLS_NET_POLL_READ;
-        FD_SET( fd, &read_fds );
-    }
-
-    FD_ZERO( &write_fds );
-    if( rw & MBEDTLS_NET_POLL_WRITE )
-    {
-        rw &= ~MBEDTLS_NET_POLL_WRITE;
-        FD_SET( fd, &write_fds );
-    }
-
-    if( rw != 0 )
-        return( MBEDTLS_ERR_NET_BAD_INPUT_DATA );
-
-    tv.tv_sec  = timeout / 1000;
-    tv.tv_usec = ( timeout % 1000 ) * 1000;
-
-    do
-    {
-        ret = select( fd + 1, &read_fds, &write_fds, NULL,
-                      timeout == (uint32_t) -1 ? NULL : &tv );
-    }
-    while( IS_EINTR( ret ) );
-
-    if( ret < 0 )
-        return( MBEDTLS_ERR_NET_POLL_FAILED );
-
-    ret = 0;
-    if( FD_ISSET( fd, &read_fds ) )
-        ret |= MBEDTLS_NET_POLL_READ;
-    if( FD_ISSET( fd, &write_fds ) )
-        ret |= MBEDTLS_NET_POLL_WRITE;
-
-    return( ret );
-}
-
-/*
- * Portable usleep helper
- */
-void mbedtls_net_usleep( unsigned long usec )
-{
-#if defined(_WIN32)
-    Sleep( ( usec + 999 ) / 1000 );
-#else
-    struct timeval tv;
-    tv.tv_sec  = usec / 1000000;
-#if defined(__unix__) || defined(__unix) || \
-    ( defined(__APPLE__) && defined(__MACH__) )
-    tv.tv_usec = (suseconds_t) usec % 1000000;
-#else
-    tv.tv_usec = usec % 1000000;
-#endif
-    select( 0, NULL, NULL, NULL, &tv );
-#endif
-}
-
-/*
- * Read at most 'len' characters
- */
-int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len )
-{
-    int ret;
-    int fd = ((mbedtls_net_context *) ctx)->fd;
-
-    if( fd < 0 )
-        return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
-
-    ret = (int) read( fd, buf, len );
-
-    if( ret < 0 )
-    {
-        if( net_would_block( ctx ) != 0 )
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-        if( WSAGetLastError() == WSAECONNRESET )
-            return( MBEDTLS_ERR_NET_CONN_RESET );
-#else
-        if( errno == EPIPE || errno == ECONNRESET )
-            return( MBEDTLS_ERR_NET_CONN_RESET );
-
-        if( errno == EINTR )
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-#endif
-
-        return( MBEDTLS_ERR_NET_RECV_FAILED );
-    }
-
-    return( ret );
-}
-
-/*
- * Read at most 'len' characters, blocking for at most 'timeout' ms
- */
-int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf,
-                              size_t len, uint32_t timeout )
-{
-    int ret;
-    struct timeval tv;
-    fd_set read_fds;
-    int fd = ((mbedtls_net_context *) ctx)->fd;
-
-    if( fd < 0 )
-        return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
-
-    FD_ZERO( &read_fds );
-    FD_SET( fd, &read_fds );
-
-    tv.tv_sec  = timeout / 1000;
-    tv.tv_usec = ( timeout % 1000 ) * 1000;
-
-    ret = select( fd + 1, &read_fds, NULL, NULL, timeout == 0 ? NULL : &tv );
-
-    /* Zero fds ready means we timed out */
-    if( ret == 0 )
-        return( MBEDTLS_ERR_SSL_TIMEOUT );
-
-    if( ret < 0 )
-    {
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-        if( WSAGetLastError() == WSAEINTR )
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-#else
-        if( errno == EINTR )
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-#endif
-
-        return( MBEDTLS_ERR_NET_RECV_FAILED );
-    }
-
-    /* This call will not block */
-    return( mbedtls_net_recv( ctx, buf, len ) );
-}
-
-/*
- * Write at most 'len' characters
- */
-int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len )
-{
-    int ret;
-    int fd = ((mbedtls_net_context *) ctx)->fd;
-
-    if( fd < 0 )
-        return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
-
-    ret = (int) write( fd, buf, len );
-
-    if( ret < 0 )
-    {
-        if( net_would_block( ctx ) != 0 )
-            return( MBEDTLS_ERR_SSL_WANT_WRITE );
-
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-        if( WSAGetLastError() == WSAECONNRESET )
-            return( MBEDTLS_ERR_NET_CONN_RESET );
-#else
-        if( errno == EPIPE || errno == ECONNRESET )
-            return( MBEDTLS_ERR_NET_CONN_RESET );
-
-        if( errno == EINTR )
-            return( MBEDTLS_ERR_SSL_WANT_WRITE );
-#endif
-
-        return( MBEDTLS_ERR_NET_SEND_FAILED );
-    }
-
-    return( ret );
-}
-
-/*
- * Gracefully close the connection
- */
-void mbedtls_net_free( mbedtls_net_context *ctx )
-{
-    if( ctx->fd == -1 )
-        return;
-
-    shutdown( ctx->fd, 2 );
-    close( ctx->fd );
-
-    ctx->fd = -1;
-}
-
-#endif /* MBEDTLS_NET_C */
diff --git a/library/oid.c b/library/oid.c
index 2d22b11..9f40941 100644
--- a/library/oid.c
+++ b/library/oid.c
@@ -50,22 +50,24 @@
  * Macro to generate an internal function for oid_XXX_from_asn1() (used by
  * the other functions)
  */
-#define FN_OID_TYPED_FROM_ASN1( TYPE_T, NAME, LIST )                        \
-static const TYPE_T * oid_ ## NAME ## _from_asn1( const mbedtls_asn1_buf *oid )     \
-{                                                                           \
-    const TYPE_T *p = LIST;                                                 \
-    const mbedtls_oid_descriptor_t *cur = (const mbedtls_oid_descriptor_t *) p;             \
-    if( p == NULL || oid == NULL ) return( NULL );                          \
-    while( cur->asn1 != NULL ) {                                            \
-        if( cur->asn1_len == oid->len &&                                    \
-            memcmp( cur->asn1, oid->p, oid->len ) == 0 ) {                  \
-            return( p );                                                    \
-        }                                                                   \
-        p++;                                                                \
-        cur = (const mbedtls_oid_descriptor_t *) p;                                 \
-    }                                                                       \
-    return( NULL );                                                         \
-}
+#define FN_OID_TYPED_FROM_ASN1( TYPE_T, NAME, LIST )                    \
+    static const TYPE_T * oid_ ## NAME ## _from_asn1(                   \
+                                      const mbedtls_asn1_buf *oid )     \
+    {                                                                   \
+        const TYPE_T *p = (LIST);                                       \
+        const mbedtls_oid_descriptor_t *cur =                           \
+            (const mbedtls_oid_descriptor_t *) p;                       \
+        if( p == NULL || oid == NULL ) return( NULL );                  \
+        while( cur->asn1 != NULL ) {                                    \
+            if( cur->asn1_len == oid->len &&                            \
+                memcmp( cur->asn1, oid->p, oid->len ) == 0 ) {          \
+                return( p );                                            \
+            }                                                           \
+            p++;                                                        \
+            cur = (const mbedtls_oid_descriptor_t *) p;                 \
+        }                                                               \
+        return( NULL );                                                 \
+    }
 
 /*
  * Macro to generate a function for retrieving a single attribute from the
@@ -99,12 +101,13 @@
  */
 #define FN_OID_GET_ATTR2(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1,     \
                          ATTR2_TYPE, ATTR2)                                 \
-int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1, ATTR2_TYPE * ATTR2 )  \
+int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1,               \
+                                          ATTR2_TYPE * ATTR2 )              \
 {                                                                           \
     const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid );            \
-    if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND );                \
-    *ATTR1 = data->ATTR1;                                                   \
-    *ATTR2 = data->ATTR2;                                                   \
+    if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND );                 \
+    *(ATTR1) = data->ATTR1;                                                 \
+    *(ATTR2) = data->ATTR2;                                                 \
     return( 0 );                                                            \
 }
 
@@ -115,16 +118,16 @@
 #define FN_OID_GET_OID_BY_ATTR1(FN_NAME, TYPE_T, LIST, ATTR1_TYPE, ATTR1)   \
 int FN_NAME( ATTR1_TYPE ATTR1, const char **oid, size_t *olen )             \
 {                                                                           \
-    const TYPE_T *cur = LIST;                                               \
+    const TYPE_T *cur = (LIST);                                             \
     while( cur->descriptor.asn1 != NULL ) {                                 \
-        if( cur->ATTR1 == ATTR1 ) {                                         \
+        if( cur->ATTR1 == (ATTR1) ) {                                       \
             *oid = cur->descriptor.asn1;                                    \
             *olen = cur->descriptor.asn1_len;                               \
             return( 0 );                                                    \
         }                                                                   \
         cur++;                                                              \
     }                                                                       \
-    return( MBEDTLS_ERR_OID_NOT_FOUND );                                   \
+    return( MBEDTLS_ERR_OID_NOT_FOUND );                                    \
 }
 
 /*
@@ -136,9 +139,9 @@
 int FN_NAME( ATTR1_TYPE ATTR1, ATTR2_TYPE ATTR2, const char **oid ,         \
              size_t *olen )                                                 \
 {                                                                           \
-    const TYPE_T *cur = LIST;                                               \
+    const TYPE_T *cur = (LIST);                                             \
     while( cur->descriptor.asn1 != NULL ) {                                 \
-        if( cur->ATTR1 == ATTR1 && cur->ATTR2 == ATTR2 ) {                  \
+        if( cur->ATTR1 == (ATTR1) && cur->ATTR2 == (ATTR2) ) {              \
             *oid = cur->descriptor.asn1;                                    \
             *olen = cur->descriptor.asn1_len;                               \
             return( 0 );                                                    \
diff --git a/library/pkcs11.c b/library/pkcs11.c
deleted file mode 100644
index 0ea6425..0000000
--- a/library/pkcs11.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/**
- * \file pkcs11.c
- *
- * \brief Wrapper for PKCS#11 library libpkcs11-helper
- *
- * \author Adriaan de Jong <dejong@fox-it.com>
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#include "mbedtls/pkcs11.h"
-
-#if defined(MBEDTLS_PKCS11_C)
-
-#include "mbedtls/md.h"
-#include "mbedtls/oid.h"
-#include "mbedtls/x509_crt.h"
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
-
-#include <string.h>
-
-void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx )
-{
-    memset( ctx, 0, sizeof( mbedtls_pkcs11_context ) );
-}
-
-int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11_cert )
-{
-    int ret = 1;
-    unsigned char *cert_blob = NULL;
-    size_t cert_blob_size = 0;
-
-    if( cert == NULL )
-    {
-        ret = 2;
-        goto cleanup;
-    }
-
-    if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, NULL,
-                                                &cert_blob_size ) != CKR_OK )
-    {
-        ret = 3;
-        goto cleanup;
-    }
-
-    cert_blob = mbedtls_calloc( 1, cert_blob_size );
-    if( NULL == cert_blob )
-    {
-        ret = 4;
-        goto cleanup;
-    }
-
-    if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, cert_blob,
-                                                &cert_blob_size ) != CKR_OK )
-    {
-        ret = 5;
-        goto cleanup;
-    }
-
-    if( 0 != mbedtls_x509_crt_parse( cert, cert_blob, cert_blob_size ) )
-    {
-        ret = 6;
-        goto cleanup;
-    }
-
-    ret = 0;
-
-cleanup:
-    if( NULL != cert_blob )
-        mbedtls_free( cert_blob );
-
-    return( ret );
-}
-
-
-int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key,
-        pkcs11h_certificate_t pkcs11_cert )
-{
-    int ret = 1;
-    mbedtls_x509_crt cert;
-
-    mbedtls_x509_crt_init( &cert );
-
-    if( priv_key == NULL )
-        goto cleanup;
-
-    if( 0 != mbedtls_pkcs11_x509_cert_bind( &cert, pkcs11_cert ) )
-        goto cleanup;
-
-    priv_key->len = mbedtls_pk_get_len( &cert.pk );
-    priv_key->pkcs11h_cert = pkcs11_cert;
-
-    ret = 0;
-
-cleanup:
-    mbedtls_x509_crt_free( &cert );
-
-    return( ret );
-}
-
-void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key )
-{
-    if( NULL != priv_key )
-        pkcs11h_certificate_freeCertificate( priv_key->pkcs11h_cert );
-}
-
-int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx,
-                       int mode, size_t *olen,
-                       const unsigned char *input,
-                       unsigned char *output,
-                       size_t output_max_len )
-{
-    size_t input_len, output_len;
-
-    if( NULL == ctx )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-    if( MBEDTLS_RSA_PRIVATE != mode )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-    output_len = input_len = ctx->len;
-
-    if( input_len < 16 || input_len > output_max_len )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-    /* Determine size of output buffer */
-    if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
-            input_len, NULL, &output_len ) != CKR_OK )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-    }
-
-    if( output_len > output_max_len )
-        return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
-
-    if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
-            input_len, output, &output_len ) != CKR_OK )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-    }
-    *olen = output_len;
-    return( 0 );
-}
-
-int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx,
-                    int mode,
-                    mbedtls_md_type_t md_alg,
-                    unsigned int hashlen,
-                    const unsigned char *hash,
-                    unsigned char *sig )
-{
-    size_t sig_len = 0, asn_len = 0, oid_size = 0;
-    unsigned char *p = sig;
-    const char *oid;
-
-    if( NULL == ctx )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-    if( MBEDTLS_RSA_PRIVATE != mode )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-    if( md_alg != MBEDTLS_MD_NONE )
-    {
-        const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
-        if( md_info == NULL )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-        if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-        hashlen = mbedtls_md_get_size( md_info );
-        asn_len = 10 + oid_size;
-    }
-
-    sig_len = ctx->len;
-    if( hashlen > sig_len || asn_len > sig_len ||
-        hashlen + asn_len > sig_len )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-    }
-
-    if( md_alg != MBEDTLS_MD_NONE )
-    {
-        /*
-         * DigestInfo ::= SEQUENCE {
-         *   digestAlgorithm DigestAlgorithmIdentifier,
-         *   digest Digest }
-         *
-         * DigestAlgorithmIdentifier ::= AlgorithmIdentifier
-         *
-         * Digest ::= OCTET STRING
-         */
-        *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
-        *p++ = (unsigned char) ( 0x08 + oid_size + hashlen );
-        *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
-        *p++ = (unsigned char) ( 0x04 + oid_size );
-        *p++ = MBEDTLS_ASN1_OID;
-        *p++ = oid_size & 0xFF;
-        memcpy( p, oid, oid_size );
-        p += oid_size;
-        *p++ = MBEDTLS_ASN1_NULL;
-        *p++ = 0x00;
-        *p++ = MBEDTLS_ASN1_OCTET_STRING;
-        *p++ = hashlen;
-    }
-
-    memcpy( p, hash, hashlen );
-
-    if( pkcs11h_certificate_signAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, sig,
-            asn_len + hashlen, sig, &sig_len ) != CKR_OK )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-    }
-
-    return( 0 );
-}
-
-#endif /* defined(MBEDTLS_PKCS11_C) */
diff --git a/library/poly1305.c b/library/poly1305.c
index b274119..2b56c5f 100644
--- a/library/poly1305.c
+++ b/library/poly1305.c
@@ -58,10 +58,10 @@
 #define POLY1305_BLOCK_SIZE_BYTES ( 16U )
 
 #define BYTES_TO_U32_LE( data, offset )                           \
-    ( (uint32_t) data[offset]                                     \
-          | (uint32_t) ( (uint32_t) data[( offset ) + 1] << 8 )   \
-          | (uint32_t) ( (uint32_t) data[( offset ) + 2] << 16 )  \
-          | (uint32_t) ( (uint32_t) data[( offset ) + 3] << 24 )  \
+    ( (uint32_t) (data)[offset]                                     \
+          | (uint32_t) ( (uint32_t) (data)[( offset ) + 1] << 8 )   \
+          | (uint32_t) ( (uint32_t) (data)[( offset ) + 2] << 16 )  \
+          | (uint32_t) ( (uint32_t) (data)[( offset ) + 3] << 24 )  \
     )
 
 /*
diff --git a/library/ripemd160.c b/library/ripemd160.c
index bd25ada..0791ae4 100644
--- a/library/ripemd160.c
+++ b/library/ripemd160.c
@@ -147,22 +147,29 @@
     D = Dp = ctx->state[3];
     E = Ep = ctx->state[4];
 
-#define F1( x, y, z )   ( x ^ y ^ z )
-#define F2( x, y, z )   ( ( x & y ) | ( ~x & z ) )
-#define F3( x, y, z )   ( ( x | ~y ) ^ z )
-#define F4( x, y, z )   ( ( x & z ) | ( y & ~z ) )
-#define F5( x, y, z )   ( x ^ ( y | ~z ) )
+#define F1( x, y, z )   ( (x) ^ (y) ^ (z) )
+#define F2( x, y, z )   ( ( (x) & (y) ) | ( ~(x) & (z) ) )
+#define F3( x, y, z )   ( ( (x) | ~(y) ) ^ (z) )
+#define F4( x, y, z )   ( ( (x) & (z) ) | ( (y) & ~(z) ) )
+#define F5( x, y, z )   ( (x) ^ ( (y) | ~(z) ) )
 
-#define S( x, n ) ( ( x << n ) | ( x >> (32 - n) ) )
+#define S( x, n ) ( ( (x) << (n) ) | ( (x) >> (32 - (n)) ) )
 
-#define P( a, b, c, d, e, r, s, f, k )      \
-    a += f( b, c, d ) + X[r] + k;           \
-    a = S( a, s ) + e;                      \
-    c = S( c, 10 );
+#define P( a, b, c, d, e, r, s, f, k )                \
+    do                                                \
+    {                                                 \
+        (a) += f( (b), (c), (d) ) + X[r] + (k);       \
+        (a) = S( (a), (s) ) + (e);                    \
+        (c) = S( (c), 10 );                           \
+    } while( 0 )
 
-#define P2( a, b, c, d, e, r, s, rp, sp )   \
-    P( a, b, c, d, e, r, s, F, K );         \
-    P( a ## p, b ## p, c ## p, d ## p, e ## p, rp, sp, Fp, Kp );
+#define P2( a, b, c, d, e, r, s, rp, sp )                               \
+    do                                                                  \
+    {                                                                   \
+        P( (a), (b), (c), (d), (e), (r), (s), F, K );                   \
+        P( a ## p, b ## p, c ## p, d ## p, e ## p,                      \
+           (rp), (sp), Fp, Kp );                                        \
+    } while( 0 )
 
 #define F   F1
 #define K   0x00000000
diff --git a/library/sha1.c b/library/sha1.c
index e8d4096..355c83d 100644
--- a/library/sha1.c
+++ b/library/sha1.c
@@ -152,19 +152,21 @@
     GET_UINT32_BE( W[14], data, 56 );
     GET_UINT32_BE( W[15], data, 60 );
 
-#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
+#define S(x,n) (((x) << (n)) | (((x) & 0xFFFFFFFF) >> (32 - (n))))
 
-#define R(t)                                            \
-(                                                       \
-    temp = W[( t -  3 ) & 0x0F] ^ W[( t - 8 ) & 0x0F] ^ \
-           W[( t - 14 ) & 0x0F] ^ W[  t       & 0x0F],  \
-    ( W[t & 0x0F] = S(temp,1) )                         \
-)
+#define R(t)                                                    \
+    (                                                           \
+        temp = W[( (t) -  3 ) & 0x0F] ^ W[( (t) - 8 ) & 0x0F] ^ \
+               W[( (t) - 14 ) & 0x0F] ^ W[  (t)       & 0x0F],  \
+        ( W[(t) & 0x0F] = S(temp,1) )                           \
+    )
 
-#define P(a,b,c,d,e,x)                                  \
-{                                                       \
-    e += S(a,5) + F(b,c,d) + K + x; b = S(b,30);        \
-}
+#define P(a,b,c,d,e,x)                                          \
+    do                                                          \
+    {                                                           \
+        (e) += S((a),5) + F((b),(c),(d)) + K + (x);             \
+        (b) = S((b),30);                                        \
+    } while( 0 )
 
     A = ctx->state[0];
     B = ctx->state[1];
@@ -172,7 +174,7 @@
     D = ctx->state[3];
     E = ctx->state[4];
 
-#define F(x,y,z) (z ^ (x & (y ^ z)))
+#define F(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
 #define K 0x5A827999
 
     P( A, B, C, D, E, W[0]  );
@@ -199,7 +201,7 @@
 #undef K
 #undef F
 
-#define F(x,y,z) (x ^ y ^ z)
+#define F(x,y,z) ((x) ^ (y) ^ (z))
 #define K 0x6ED9EBA1
 
     P( A, B, C, D, E, R(20) );
@@ -226,7 +228,7 @@
 #undef K
 #undef F
 
-#define F(x,y,z) ((x & y) | (z & (x | y)))
+#define F(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
 #define K 0x8F1BBCDC
 
     P( A, B, C, D, E, R(40) );
@@ -253,7 +255,7 @@
 #undef K
 #undef F
 
-#define F(x,y,z) (x ^ y ^ z)
+#define F(x,y,z) ((x) ^ (y) ^ (z))
 #define K 0xCA62C1D6
 
     P( A, B, C, D, E, R(60) );
diff --git a/library/sha256.c b/library/sha256.c
index 8a540ad..2dc0e1a 100644
--- a/library/sha256.c
+++ b/library/sha256.c
@@ -172,8 +172,8 @@
     0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2,
 };
 
-#define  SHR(x,n) ((x & 0xFFFFFFFF) >> n)
-#define ROTR(x,n) (SHR(x,n) | (x << (32 - n)))
+#define  SHR(x,n) (((x) & 0xFFFFFFFF) >> (n))
+#define ROTR(x,n) (SHR(x,n) | ((x) << (32 - (n))))
 
 #define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^  SHR(x, 3))
 #define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^  SHR(x,10))
@@ -181,21 +181,22 @@
 #define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22))
 #define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25))
 
-#define F0(x,y,z) ((x & y) | (z & (x | y)))
-#define F1(x,y,z) (z ^ (x & (y ^ z)))
+#define F0(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
+#define F1(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
 
 #define R(t)                                    \
-(                                               \
-    W[t] = S1(W[t -  2]) + W[t -  7] +          \
-           S0(W[t - 15]) + W[t - 16]            \
-)
+    (                                           \
+        W[t] = S1(W[(t) -  2]) + W[(t) -  7] +  \
+               S0(W[(t) - 15]) + W[(t) - 16]    \
+    )
 
-#define P(a,b,c,d,e,f,g,h,x,K)                  \
-{                                               \
-    temp1 = h + S3(e) + F1(e,f,g) + K + x;      \
-    temp2 = S2(a) + F0(a,b,c);                  \
-    d += temp1; h = temp1 + temp2;              \
-}
+#define P(a,b,c,d,e,f,g,h,x,K)                          \
+    do                                                  \
+    {                                                   \
+        temp1 = (h) + S3(e) + F1((e),(f),(g)) + (K) + (x);      \
+        temp2 = S2(a) + F0((a),(b),(c));                        \
+        (d) += temp1; (h) = temp1 + temp2;              \
+    } while( 0 )
 
 int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
                                 const unsigned char data[64] )
diff --git a/library/sha512.c b/library/sha512.c
index 941ecda..bdd20b2 100644
--- a/library/sha512.c
+++ b/library/sha512.c
@@ -224,8 +224,8 @@
     SHA512_VALIDATE_RET( ctx != NULL );
     SHA512_VALIDATE_RET( (const unsigned char *)data != NULL );
 
-#define  SHR(x,n) (x >> n)
-#define ROTR(x,n) (SHR(x,n) | (x << (64 - n)))
+#define  SHR(x,n) ((x) >> (n))
+#define ROTR(x,n) (SHR((x),(n)) | ((x) << (64 - (n))))
 
 #define S0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^  SHR(x, 7))
 #define S1(x) (ROTR(x,19) ^ ROTR(x,61) ^  SHR(x, 6))
@@ -233,15 +233,16 @@
 #define S2(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
 #define S3(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
 
-#define F0(x,y,z) ((x & y) | (z & (x | y)))
-#define F1(x,y,z) (z ^ (x & (y ^ z)))
+#define F0(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
+#define F1(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
 
-#define P(a,b,c,d,e,f,g,h,x,K)                  \
-{                                               \
-    temp1 = h + S3(e) + F1(e,f,g) + K + x;      \
-    temp2 = S2(a) + F0(a,b,c);                  \
-    d += temp1; h = temp1 + temp2;              \
-}
+#define P(a,b,c,d,e,f,g,h,x,K)                                  \
+    do                                                          \
+    {                                                           \
+        temp1 = (h) + S3(e) + F1((e),(f),(g)) + (K) + (x);      \
+        temp2 = S2(a) + F0((a),(b),(c));                        \
+        (d) += temp1; (h) = temp1 + temp2;                      \
+    } while( 0 )
 
     for( i = 0; i < 16; i++ )
     {
diff --git a/library/ssl_cache.c b/library/ssl_cache.c
deleted file mode 100644
index 62a0a29..0000000
--- a/library/ssl_cache.c
+++ /dev/null
@@ -1,353 +0,0 @@
-/*
- *  SSL session cache implementation
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- * These session callbacks use a simple chained list
- * to store and retrieve the session information.
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
-
-#include "mbedtls/ssl_cache.h"
-#include "mbedtls/ssl_internal.h"
-
-#include <string.h>
-
-void mbedtls_ssl_cache_init( mbedtls_ssl_cache_context *cache )
-{
-    memset( cache, 0, sizeof( mbedtls_ssl_cache_context ) );
-
-    cache->timeout = MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT;
-    cache->max_entries = MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES;
-
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_init( &cache->mutex );
-#endif
-}
-
-int mbedtls_ssl_cache_get( void *data, mbedtls_ssl_session *session )
-{
-    int ret = 1;
-#if defined(MBEDTLS_HAVE_TIME)
-    mbedtls_time_t t = mbedtls_time( NULL );
-#endif
-    mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data;
-    mbedtls_ssl_cache_entry *cur, *entry;
-
-#if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_lock( &cache->mutex ) != 0 )
-        return( 1 );
-#endif
-
-    cur = cache->chain;
-    entry = NULL;
-
-    while( cur != NULL )
-    {
-        entry = cur;
-        cur = cur->next;
-
-#if defined(MBEDTLS_HAVE_TIME)
-        if( cache->timeout != 0 &&
-            (int) ( t - entry->timestamp ) > cache->timeout )
-            continue;
-#endif
-
-        if( session->ciphersuite != entry->session.ciphersuite ||
-            session->compression != entry->session.compression ||
-            session->id_len != entry->session.id_len )
-            continue;
-
-        if( memcmp( session->id, entry->session.id,
-                    entry->session.id_len ) != 0 )
-            continue;
-
-        ret = mbedtls_ssl_session_copy( session, &entry->session );
-        if( ret != 0 )
-        {
-            ret = 1;
-            goto exit;
-        }
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && \
-    defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-        /*
-         * Restore peer certificate (without rest of the original chain)
-         */
-        if( entry->peer_cert.p != NULL )
-        {
-            /* `session->peer_cert` is NULL after the call to
-             * mbedtls_ssl_session_copy(), because cache entries
-             * have the `peer_cert` field set to NULL. */
-
-            if( ( session->peer_cert = mbedtls_calloc( 1,
-                                 sizeof(mbedtls_x509_crt) ) ) == NULL )
-            {
-                ret = 1;
-                goto exit;
-            }
-
-            mbedtls_x509_crt_init( session->peer_cert );
-            if( mbedtls_x509_crt_parse( session->peer_cert, entry->peer_cert.p,
-                                entry->peer_cert.len ) != 0 )
-            {
-                mbedtls_free( session->peer_cert );
-                session->peer_cert = NULL;
-                ret = 1;
-                goto exit;
-            }
-        }
-#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-        ret = 0;
-        goto exit;
-    }
-
-exit:
-#if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &cache->mutex ) != 0 )
-        ret = 1;
-#endif
-
-    return( ret );
-}
-
-int mbedtls_ssl_cache_set( void *data, const mbedtls_ssl_session *session )
-{
-    int ret = 1;
-#if defined(MBEDTLS_HAVE_TIME)
-    mbedtls_time_t t = mbedtls_time( NULL ), oldest = 0;
-    mbedtls_ssl_cache_entry *old = NULL;
-#endif
-    mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data;
-    mbedtls_ssl_cache_entry *cur, *prv;
-    int count = 0;
-
-#if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &cache->mutex ) ) != 0 )
-        return( ret );
-#endif
-
-    cur = cache->chain;
-    prv = NULL;
-
-    while( cur != NULL )
-    {
-        count++;
-
-#if defined(MBEDTLS_HAVE_TIME)
-        if( cache->timeout != 0 &&
-            (int) ( t - cur->timestamp ) > cache->timeout )
-        {
-            cur->timestamp = t;
-            break; /* expired, reuse this slot, update timestamp */
-        }
-#endif
-
-        if( memcmp( session->id, cur->session.id, cur->session.id_len ) == 0 )
-            break; /* client reconnected, keep timestamp for session id */
-
-#if defined(MBEDTLS_HAVE_TIME)
-        if( oldest == 0 || cur->timestamp < oldest )
-        {
-            oldest = cur->timestamp;
-            old = cur;
-        }
-#endif
-
-        prv = cur;
-        cur = cur->next;
-    }
-
-    if( cur == NULL )
-    {
-#if defined(MBEDTLS_HAVE_TIME)
-        /*
-         * Reuse oldest entry if max_entries reached
-         */
-        if( count >= cache->max_entries )
-        {
-            if( old == NULL )
-            {
-                ret = 1;
-                goto exit;
-            }
-
-            cur = old;
-        }
-#else /* MBEDTLS_HAVE_TIME */
-        /*
-         * Reuse first entry in chain if max_entries reached,
-         * but move to last place
-         */
-        if( count >= cache->max_entries )
-        {
-            if( cache->chain == NULL )
-            {
-                ret = 1;
-                goto exit;
-            }
-
-            cur = cache->chain;
-            cache->chain = cur->next;
-            cur->next = NULL;
-            prv->next = cur;
-        }
-#endif /* MBEDTLS_HAVE_TIME */
-        else
-        {
-            /*
-             * max_entries not reached, create new entry
-             */
-            cur = mbedtls_calloc( 1, sizeof(mbedtls_ssl_cache_entry) );
-            if( cur == NULL )
-            {
-                ret = 1;
-                goto exit;
-            }
-
-            if( prv == NULL )
-                cache->chain = cur;
-            else
-                prv->next = cur;
-        }
-
-#if defined(MBEDTLS_HAVE_TIME)
-        cur->timestamp = t;
-#endif
-    }
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && \
-    defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    /*
-     * If we're reusing an entry, free its certificate first
-     */
-    if( cur->peer_cert.p != NULL )
-    {
-        mbedtls_free( cur->peer_cert.p );
-        memset( &cur->peer_cert, 0, sizeof(mbedtls_x509_buf) );
-    }
-#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-    /* Copy the entire session; this temporarily makes a copy of the
-     * X.509 CRT structure even though we only want to store the raw CRT.
-     * This inefficiency will go away as soon as we implement on-demand
-     * parsing of CRTs, in which case there's no need for the `peer_cert`
-     * field anymore in the first place, and we're done after this call. */
-    ret = mbedtls_ssl_session_copy( &cur->session, session );
-    if( ret != 0 )
-    {
-        ret = 1;
-        goto exit;
-    }
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && \
-    defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    /* If present, free the X.509 structure and only store the raw CRT data. */
-    if( cur->session.peer_cert != NULL )
-    {
-        cur->peer_cert.p =
-            mbedtls_calloc( 1, cur->session.peer_cert->raw.len );
-        if( cur->peer_cert.p == NULL )
-        {
-            ret = 1;
-            goto exit;
-        }
-
-        memcpy( cur->peer_cert.p,
-                cur->session.peer_cert->raw.p,
-                cur->session.peer_cert->raw.len );
-        cur->peer_cert.len = session->peer_cert->raw.len;
-
-        mbedtls_x509_crt_free( cur->session.peer_cert );
-        mbedtls_free( cur->session.peer_cert );
-        cur->session.peer_cert = NULL;
-    }
-#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-    ret = 0;
-
-exit:
-#if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &cache->mutex ) != 0 )
-        ret = 1;
-#endif
-
-    return( ret );
-}
-
-#if defined(MBEDTLS_HAVE_TIME)
-void mbedtls_ssl_cache_set_timeout( mbedtls_ssl_cache_context *cache, int timeout )
-{
-    if( timeout < 0 ) timeout = 0;
-
-    cache->timeout = timeout;
-}
-#endif /* MBEDTLS_HAVE_TIME */
-
-void mbedtls_ssl_cache_set_max_entries( mbedtls_ssl_cache_context *cache, int max )
-{
-    if( max < 0 ) max = 0;
-
-    cache->max_entries = max;
-}
-
-void mbedtls_ssl_cache_free( mbedtls_ssl_cache_context *cache )
-{
-    mbedtls_ssl_cache_entry *cur, *prv;
-
-    cur = cache->chain;
-
-    while( cur != NULL )
-    {
-        prv = cur;
-        cur = cur->next;
-
-        mbedtls_ssl_session_free( &prv->session );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && \
-    defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-        mbedtls_free( prv->peer_cert.p );
-#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-        mbedtls_free( prv );
-    }
-
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_free( &cache->mutex );
-#endif
-    cache->chain = NULL;
-}
-
-#endif /* MBEDTLS_SSL_CACHE_C */
diff --git a/library/ssl_ciphersuites.c b/library/ssl_ciphersuites.c
deleted file mode 100644
index 518f7dd..0000000
--- a/library/ssl_ciphersuites.c
+++ /dev/null
@@ -1,2373 +0,0 @@
-/**
- * \file ssl_ciphersuites.c
- *
- * \brief SSL ciphersuites for mbed TLS
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_SSL_TLS_C)
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#endif
-
-#include "mbedtls/ssl_ciphersuites.h"
-#include "mbedtls/ssl.h"
-
-#include <string.h>
-
-/*
- * Ordered from most preferred to least preferred in terms of security.
- *
- * Current rule (except RC4 and 3DES, weak and null which come last):
- * 1. By key exchange:
- *    Forward-secure non-PSK > forward-secure PSK > ECJPAKE > other non-PSK > other PSK
- * 2. By key length and cipher:
- *    ChaCha > AES-256 > Camellia-256 > ARIA-256 > AES-128 > Camellia-128 > ARIA-128
- * 3. By cipher mode when relevant GCM > CCM > CBC > CCM_8
- * 4. By hash function used when relevant
- * 5. By key exchange/auth again: EC > non-EC
- */
-static const int ciphersuite_preference[] =
-{
-#if defined(MBEDTLS_SSL_CIPHERSUITES)
-    MBEDTLS_SSL_CIPHERSUITES,
-#else
-    /* Chacha-Poly ephemeral suites */
-    MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
-    MBEDTLS_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
-
-    /* All AES-256 ephemeral suites */
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
-    MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM,
-    MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
-    MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
-    MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8,
-    MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8,
-
-    /* All CAMELLIA-256 ephemeral suites */
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384,
-    MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384,
-    MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256,
-    MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA,
-
-    /* All ARIA-256 ephemeral suites */
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384,
-    MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384,
-    MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384,
-
-    /* All AES-128 ephemeral suites */
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
-    MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
-    MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
-    MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
-    MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
-    MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8,
-
-    /* All CAMELLIA-128 ephemeral suites */
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256,
-    MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
-    MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
-    MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA,
-
-    /* All ARIA-128 ephemeral suites */
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256,
-    MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256,
-    MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256,
-
-    /* The PSK ephemeral suites */
-    MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
-    MBEDTLS_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
-    MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384,
-    MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384,
-    MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA,
-    MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA,
-    MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384,
-    MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384,
-    MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8,
-    MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384,
-    MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384,
-
-    MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256,
-    MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256,
-    MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA,
-    MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA,
-    MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256,
-    MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256,
-    MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8,
-    MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256,
-    MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256,
-
-    /* The ECJPAKE suite */
-    MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8,
-
-    /* All AES-256 suites */
-    MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384,
-    MBEDTLS_TLS_RSA_WITH_AES_256_CCM,
-    MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256,
-    MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA,
-    MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384,
-    MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,
-    MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8,
-
-    /* All CAMELLIA-256 suites */
-    MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384,
-    MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256,
-    MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA,
-    MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
-
-    /* All ARIA-256 suites */
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384,
-    MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384,
-    MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384,
-    MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384,
-
-    /* All AES-128 suites */
-    MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256,
-    MBEDTLS_TLS_RSA_WITH_AES_128_CCM,
-    MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256,
-    MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA,
-    MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256,
-    MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
-    MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8,
-
-    /* All CAMELLIA-128 suites */
-    MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256,
-    MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256,
-    MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA,
-    MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
-
-    /* All ARIA-128 suites */
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256,
-    MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256,
-    MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256,
-    MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256,
-
-    /* The RSA PSK suites */
-    MBEDTLS_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256,
-    MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384,
-    MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384,
-    MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA,
-    MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384,
-    MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384,
-    MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384,
-    MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384,
-
-    MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256,
-    MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256,
-    MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA,
-    MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256,
-    MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256,
-    MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256,
-    MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256,
-
-    /* The PSK suites */
-    MBEDTLS_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256,
-    MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384,
-    MBEDTLS_TLS_PSK_WITH_AES_256_CCM,
-    MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384,
-    MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA,
-    MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384,
-    MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384,
-    MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8,
-    MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384,
-    MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384,
-
-    MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256,
-    MBEDTLS_TLS_PSK_WITH_AES_128_CCM,
-    MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256,
-    MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA,
-    MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256,
-    MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256,
-    MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8,
-    MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256,
-    MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256,
-
-    /* 3DES suites */
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
-    MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA,
-    MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA,
-    MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA,
-    MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA,
-    MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA,
-    MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA,
-
-    /* RC4 suites */
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA,
-    MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA,
-    MBEDTLS_TLS_RSA_WITH_RC4_128_SHA,
-    MBEDTLS_TLS_RSA_WITH_RC4_128_MD5,
-    MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA,
-    MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA,
-    MBEDTLS_TLS_PSK_WITH_RC4_128_SHA,
-
-    /* Weak suites */
-    MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA,
-    MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA,
-
-    /* NULL suites */
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA,
-    MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256,
-    MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA,
-    MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384,
-    MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256,
-    MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA,
-
-    MBEDTLS_TLS_RSA_WITH_NULL_SHA256,
-    MBEDTLS_TLS_RSA_WITH_NULL_SHA,
-    MBEDTLS_TLS_RSA_WITH_NULL_MD5,
-    MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA,
-    MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA,
-    MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384,
-    MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256,
-    MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA,
-    MBEDTLS_TLS_PSK_WITH_NULL_SHA384,
-    MBEDTLS_TLS_PSK_WITH_NULL_SHA256,
-    MBEDTLS_TLS_PSK_WITH_NULL_SHA,
-
-#endif /* MBEDTLS_SSL_CIPHERSUITES */
-    0
-};
-
-static const mbedtls_ssl_ciphersuite_t ciphersuite_definitions[] =
-{
-#if defined(MBEDTLS_CHACHAPOLY_C) && \
-    defined(MBEDTLS_SHA256_C) && \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
-      "TLS-ECDHE-RSA-WITH-CHACHA20-POLY1305-SHA256",
-      MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
-      MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
-      "TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256",
-      MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
-      MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
-    { MBEDTLS_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
-      "TLS-DHE-RSA-WITH-CHACHA20-POLY1305-SHA256",
-      MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
-      MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-    { MBEDTLS_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256,
-      "TLS-PSK-WITH-CHACHA20-POLY1305-SHA256",
-      MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
-      MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
-      "TLS-ECDHE-PSK-WITH-CHACHA20-POLY1305-SHA256",
-      MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
-      MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-    { MBEDTLS_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
-      "TLS-DHE-PSK-WITH-CHACHA20-POLY1305-SHA256",
-      MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
-      MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-    { MBEDTLS_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256,
-      "TLS-RSA-PSK-WITH-CHACHA20-POLY1305-SHA256",
-      MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
-      MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#endif /* MBEDTLS_CHACHAPOLY_C &&
-          MBEDTLS_SHA256_C &&
-          MBEDTLS_SSL_PROTO_TLS1_2 */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
-#if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_SHA1_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_SHA1_C */
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, "TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256",
-      MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA384",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, "TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384",
-      MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_SHA512_C */
-#if defined(MBEDTLS_CCM_C)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM, "TLS-ECDHE-ECDSA-WITH-AES-256-CCM",
-      MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8, "TLS-ECDHE-ECDSA-WITH-AES-256-CCM-8",
-      MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM, "TLS-ECDHE-ECDSA-WITH-AES-128-CCM",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8, "TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-#endif /* MBEDTLS_CCM_C */
-#endif /* MBEDTLS_AES_C */
-
-#if defined(MBEDTLS_CAMELLIA_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_CAMELLIA_C */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-3DES-EDE-CBC-SHA",
-      MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-
-#if defined(MBEDTLS_ARC4_C)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, "TLS-ECDHE-ECDSA-WITH-RC4-128-SHA",
-      MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_NODTLS },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_ARC4_C */
-
-#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA, "TLS-ECDHE-ECDSA-WITH-NULL-SHA",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
-#if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_SHA1_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, "TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, "TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_SHA1_C */
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, "TLS-ECDHE-RSA-WITH-AES-128-GCM-SHA256",
-      MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA384",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, "TLS-ECDHE-RSA-WITH-AES-256-GCM-SHA384",
-      MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_AES_C */
-
-#if defined(MBEDTLS_CAMELLIA_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-RSA-WITH-CAMELLIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-RSA-WITH-CAMELLIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDHE-RSA-WITH-CAMELLIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDHE-RSA-WITH-CAMELLIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_CAMELLIA_C */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-RSA-WITH-3DES-EDE-CBC-SHA",
-      MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-
-#if defined(MBEDTLS_ARC4_C)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA, "TLS-ECDHE-RSA-WITH-RC4-128-SHA",
-      MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_NODTLS },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_ARC4_C */
-
-#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA, "TLS-ECDHE-RSA-WITH-NULL-SHA",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
-#if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_SHA512_C) && defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, "TLS-DHE-RSA-WITH-AES-256-GCM-SHA384",
-      MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C && MBEDTLS_GCM_C */
-
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, "TLS-DHE-RSA-WITH-AES-128-GCM-SHA256",
-      MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_GCM_C */
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, "TLS-DHE-RSA-WITH-AES-128-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, "TLS-DHE-RSA-WITH-AES-256-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA, "TLS-DHE-RSA-WITH-AES-128-CBC-SHA",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA, "TLS-DHE-RSA-WITH-AES-256-CBC-SHA",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_CCM_C)
-    { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM, "TLS-DHE-RSA-WITH-AES-256-CCM",
-      MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8, "TLS-DHE-RSA-WITH-AES-256-CCM-8",
-      MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-    { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM, "TLS-DHE-RSA-WITH-AES-128-CCM",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8, "TLS-DHE-RSA-WITH-AES-128-CCM-8",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-#endif /* MBEDTLS_CCM_C */
-#endif /* MBEDTLS_AES_C */
-
-#if defined(MBEDTLS_CAMELLIA_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-256-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA, "TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA, "TLS-DHE-RSA-WITH-CAMELLIA-256-CBC-SHA",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-DHE-RSA-WITH-CAMELLIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_CAMELLIA_C */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-DHE-RSA-WITH-3DES-EDE-CBC-SHA",
-      MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-#if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_SHA512_C) && defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384, "TLS-RSA-WITH-AES-256-GCM-SHA384",
-      MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C && MBEDTLS_GCM_C */
-
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256, "TLS-RSA-WITH-AES-128-GCM-SHA256",
-      MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_GCM_C */
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256, "TLS-RSA-WITH-AES-128-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256, "TLS-RSA-WITH-AES-256-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA1_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA, "TLS-RSA-WITH-AES-128-CBC-SHA",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA, "TLS-RSA-WITH-AES-256-CBC-SHA",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_SHA1_C */
-#if defined(MBEDTLS_CCM_C)
-    { MBEDTLS_TLS_RSA_WITH_AES_256_CCM, "TLS-RSA-WITH-AES-256-CCM",
-      MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8, "TLS-RSA-WITH-AES-256-CCM-8",
-      MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-    { MBEDTLS_TLS_RSA_WITH_AES_128_CCM, "TLS-RSA-WITH-AES-128-CCM",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8, "TLS-RSA-WITH-AES-128-CCM-8",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-#endif /* MBEDTLS_CCM_C */
-#endif /* MBEDTLS_AES_C */
-
-#if defined(MBEDTLS_CAMELLIA_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-RSA-WITH-CAMELLIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256, "TLS-RSA-WITH-CAMELLIA-256-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA, "TLS-RSA-WITH-CAMELLIA-128-CBC-SHA",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA, "TLS-RSA-WITH-CAMELLIA-256-CBC-SHA",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-RSA-WITH-CAMELLIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-RSA-WITH-CAMELLIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_CAMELLIA_C */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-RSA-WITH-3DES-EDE-CBC-SHA",
-      MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-
-#if defined(MBEDTLS_ARC4_C)
-#if defined(MBEDTLS_MD5_C)
-    { MBEDTLS_TLS_RSA_WITH_RC4_128_MD5, "TLS-RSA-WITH-RC4-128-MD5",
-      MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_MD5, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_NODTLS },
-#endif
-
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_RSA_WITH_RC4_128_SHA, "TLS-RSA-WITH-RC4-128-SHA",
-      MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_NODTLS },
-#endif
-#endif /* MBEDTLS_ARC4_C */
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)
-#if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_SHA1_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, "TLS-ECDH-RSA-WITH-AES-128-CBC-SHA",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, "TLS-ECDH-RSA-WITH-AES-256-CBC-SHA",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_SHA1_C */
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, "TLS-ECDH-RSA-WITH-AES-128-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, "TLS-ECDH-RSA-WITH-AES-128-GCM-SHA256",
-      MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, "TLS-ECDH-RSA-WITH-AES-256-CBC-SHA384",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, "TLS-ECDH-RSA-WITH-AES-256-GCM-SHA384",
-      MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_AES_C */
-
-#if defined(MBEDTLS_CAMELLIA_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDH-RSA-WITH-CAMELLIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDH-RSA-WITH-CAMELLIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDH-RSA-WITH-CAMELLIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDH-RSA-WITH-CAMELLIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_CAMELLIA_C */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDH-RSA-WITH-3DES-EDE-CBC-SHA",
-      MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-
-#if defined(MBEDTLS_ARC4_C)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA, "TLS-ECDH-RSA-WITH-RC4-128-SHA",
-      MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_NODTLS },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_ARC4_C */
-
-#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA, "TLS-ECDH-RSA-WITH-NULL-SHA",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-#if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_SHA1_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, "TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, "TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_SHA1_C */
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, "TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, "TLS-ECDH-ECDSA-WITH-AES-128-GCM-SHA256",
-      MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, "TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA384",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_GCM_C)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, "TLS-ECDH-ECDSA-WITH-AES-256-GCM-SHA384",
-      MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_AES_C */
-
-#if defined(MBEDTLS_CAMELLIA_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDH-ECDSA-WITH-CAMELLIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDH-ECDSA-WITH-CAMELLIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDH-ECDSA-WITH-CAMELLIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDH-ECDSA-WITH-CAMELLIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_CAMELLIA_C */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDH-ECDSA-WITH-3DES-EDE-CBC-SHA",
-      MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-
-#if defined(MBEDTLS_ARC4_C)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA, "TLS-ECDH-ECDSA-WITH-RC4-128-SHA",
-      MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_NODTLS },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_ARC4_C */
-
-#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA, "TLS-ECDH-ECDSA-WITH-NULL-SHA",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-#if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256, "TLS-PSK-WITH-AES-128-GCM-SHA256",
-      MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384, "TLS-PSK-WITH-AES-256-GCM-SHA384",
-      MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256, "TLS-PSK-WITH-AES-128-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384, "TLS-PSK-WITH-AES-256-CBC-SHA384",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA, "TLS-PSK-WITH-AES-128-CBC-SHA",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA, "TLS-PSK-WITH-AES-256-CBC-SHA",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_CCM_C)
-    { MBEDTLS_TLS_PSK_WITH_AES_256_CCM, "TLS-PSK-WITH-AES-256-CCM",
-      MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8, "TLS-PSK-WITH-AES-256-CCM-8",
-      MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-    { MBEDTLS_TLS_PSK_WITH_AES_128_CCM, "TLS-PSK-WITH-AES-128-CCM",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8, "TLS-PSK-WITH-AES-128-CCM-8",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-#endif /* MBEDTLS_CCM_C */
-#endif /* MBEDTLS_AES_C */
-
-#if defined(MBEDTLS_CAMELLIA_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-PSK-WITH-CAMELLIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-PSK-WITH-CAMELLIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-PSK-WITH-CAMELLIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-PSK-WITH-CAMELLIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_CAMELLIA_C */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-PSK-WITH-3DES-EDE-CBC-SHA",
-      MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-
-#if defined(MBEDTLS_ARC4_C)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_PSK_WITH_RC4_128_SHA, "TLS-PSK-WITH-RC4-128-SHA",
-      MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_NODTLS },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_ARC4_C */
-#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-#if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256, "TLS-DHE-PSK-WITH-AES-128-GCM-SHA256",
-      MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384, "TLS-DHE-PSK-WITH-AES-256-GCM-SHA384",
-      MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256, "TLS-DHE-PSK-WITH-AES-128-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384, "TLS-DHE-PSK-WITH-AES-256-CBC-SHA384",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA, "TLS-DHE-PSK-WITH-AES-128-CBC-SHA",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA, "TLS-DHE-PSK-WITH-AES-256-CBC-SHA",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#if defined(MBEDTLS_CCM_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM, "TLS-DHE-PSK-WITH-AES-256-CCM",
-      MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8, "TLS-DHE-PSK-WITH-AES-256-CCM-8",
-      MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-    { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM, "TLS-DHE-PSK-WITH-AES-128-CCM",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-    { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8, "TLS-DHE-PSK-WITH-AES-128-CCM-8",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-#endif /* MBEDTLS_CCM_C */
-#endif /* MBEDTLS_AES_C */
-
-#if defined(MBEDTLS_CAMELLIA_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-DHE-PSK-WITH-CAMELLIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-DHE-PSK-WITH-CAMELLIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-DHE-PSK-WITH-CAMELLIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-DHE-PSK-WITH-CAMELLIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_CAMELLIA_C */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-DHE-PSK-WITH-3DES-EDE-CBC-SHA",
-      MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-
-#if defined(MBEDTLS_ARC4_C)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA, "TLS-DHE-PSK-WITH-RC4-128-SHA",
-      MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_NODTLS },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_ARC4_C */
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-#if defined(MBEDTLS_AES_C)
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA384",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA, "TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA, "TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_AES_C */
-
-#if defined(MBEDTLS_CAMELLIA_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-PSK-WITH-CAMELLIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-PSK-WITH-CAMELLIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_CAMELLIA_C */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-PSK-WITH-3DES-EDE-CBC-SHA",
-      MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-
-#if defined(MBEDTLS_ARC4_C)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA, "TLS-ECDHE-PSK-WITH-RC4-128-SHA",
-      MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_NODTLS },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_ARC4_C */
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-#if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256, "TLS-RSA-PSK-WITH-AES-128-GCM-SHA256",
-      MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384, "TLS-RSA-PSK-WITH-AES-256-GCM-SHA384",
-      MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA256",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384, "TLS-RSA-PSK-WITH-AES-256-CBC-SHA384",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA",
-      MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-
-    { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA, "TLS-RSA-PSK-WITH-AES-256-CBC-SHA",
-      MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_AES_C */
-
-#if defined(MBEDTLS_CAMELLIA_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-RSA-PSK-WITH-CAMELLIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-RSA-PSK-WITH-CAMELLIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-#if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-RSA-PSK-WITH-CAMELLIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-RSA-PSK-WITH-CAMELLIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_CAMELLIA_C */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-RSA-PSK-WITH-3DES-EDE-CBC-SHA",
-      MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-
-#if defined(MBEDTLS_ARC4_C)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA, "TLS-RSA-PSK-WITH-RC4-128-SHA",
-      MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_NODTLS },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_ARC4_C */
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-#if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_CCM_C)
-    { MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8, "TLS-ECJPAKE-WITH-AES-128-CCM-8",
-      MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECJPAKE,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_SHORT_TAG },
-#endif /* MBEDTLS_CCM_C */
-#endif /* MBEDTLS_AES_C */
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_ENABLE_WEAK_CIPHERSUITES)
-#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-#if defined(MBEDTLS_MD5_C)
-    { MBEDTLS_TLS_RSA_WITH_NULL_MD5, "TLS-RSA-WITH-NULL-MD5",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_MD5, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_RSA_WITH_NULL_SHA, "TLS-RSA-WITH-NULL-SHA",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_RSA_WITH_NULL_SHA256, "TLS-RSA-WITH-NULL-SHA256",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_PSK_WITH_NULL_SHA, "TLS-PSK-WITH-NULL-SHA",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif /* MBEDTLS_SHA1_C */
-
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_PSK_WITH_NULL_SHA256, "TLS-PSK-WITH-NULL-SHA256",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_PSK_WITH_NULL_SHA384, "TLS-PSK-WITH-NULL-SHA384",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA, "TLS-DHE-PSK-WITH-NULL-SHA",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif /* MBEDTLS_SHA1_C */
-
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256, "TLS-DHE-PSK-WITH-NULL-SHA256",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384, "TLS-DHE-PSK-WITH-NULL-SHA384",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA, "TLS-ECDHE-PSK-WITH-NULL-SHA",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif /* MBEDTLS_SHA1_C */
-
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256, "TLS-ECDHE-PSK-WITH-NULL-SHA256",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384, "TLS-ECDHE-PSK-WITH-NULL-SHA384",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA, "TLS-RSA-PSK-WITH-NULL-SHA",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif /* MBEDTLS_SHA1_C */
-
-#if defined(MBEDTLS_SHA256_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256, "TLS-RSA-PSK-WITH-NULL-SHA256",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-
-#if defined(MBEDTLS_SHA512_C)
-    { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384, "TLS-RSA-PSK-WITH-NULL-SHA384",
-      MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
-#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
-
-#if defined(MBEDTLS_DES_C)
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA, "TLS-DHE-RSA-WITH-DES-CBC-SHA",
-      MBEDTLS_CIPHER_DES_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-#if defined(MBEDTLS_SHA1_C)
-    { MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA, "TLS-RSA-WITH-DES-CBC-SHA",
-      MBEDTLS_CIPHER_DES_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_CIPHERSUITE_WEAK },
-#endif /* MBEDTLS_SHA1_C */
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_DES_C */
-#endif /* MBEDTLS_ENABLE_WEAK_CIPHERSUITES */
-
-#if defined(MBEDTLS_ARIA_C)
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384,
-             "TLS-RSA-WITH-ARIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384,
-             "TLS-RSA-WITH-ARIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256,
-             "TLS-RSA-WITH-ARIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256,
-             "TLS-RSA-WITH-ARIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384,
-             "TLS-RSA-PSK-WITH-ARIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384,
-             "TLS-RSA-PSK-WITH-ARIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256,
-             "TLS-RSA-PSK-WITH-ARIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256,
-             "TLS-RSA-PSK-WITH-ARIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384,
-             "TLS-PSK-WITH-ARIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384,MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384,
-             "TLS-PSK-WITH-ARIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256,
-             "TLS-PSK-WITH-ARIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256,
-             "TLS-PSK-WITH-ARIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-
-#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)
-
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384,
-             "TLS-ECDH-RSA-WITH-ARIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384,
-             "TLS-ECDH-RSA-WITH-ARIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256,
-             "TLS-ECDH-RSA-WITH-ARIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256,
-             "TLS-ECDH-RSA-WITH-ARIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
-
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384,
-             "TLS-ECDHE-RSA-WITH-ARIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384,
-             "TLS-ECDHE-RSA-WITH-ARIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256,
-             "TLS-ECDHE-RSA-WITH-ARIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256,
-             "TLS-ECDHE-RSA-WITH-ARIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384,
-             "TLS-ECDHE-PSK-WITH-ARIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256,
-             "TLS-ECDHE-PSK-WITH-ARIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
-
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384,
-             "TLS-ECDHE-ECDSA-WITH-ARIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384,
-             "TLS-ECDHE-ECDSA-WITH-ARIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256,
-             "TLS-ECDHE-ECDSA-WITH-ARIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256,
-             "TLS-ECDHE-ECDSA-WITH-ARIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384,
-             "TLS-ECDH-ECDSA-WITH-ARIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384,
-             "TLS-ECDH-ECDSA-WITH-ARIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256,
-             "TLS-ECDH-ECDSA-WITH-ARIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256,
-             "TLS-ECDH-ECDSA-WITH-ARIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
-
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384,
-             "TLS-DHE-RSA-WITH-ARIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384,
-             "TLS-DHE-RSA-WITH-ARIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256,
-             "TLS-DHE-RSA-WITH-ARIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256,
-             "TLS-DHE-RSA-WITH-ARIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384,
-             "TLS-DHE-PSK-WITH-ARIA-256-GCM-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
-    { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384,
-             "TLS-DHE-PSK-WITH-ARIA-256-CBC-SHA384",
-      MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256,
-             "TLS-DHE-PSK-WITH-ARIA-128-GCM-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
-    { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256,
-             "TLS-DHE-PSK-WITH-ARIA-128-CBC-SHA256",
-      MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
-      0 },
-#endif
-
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-
-#endif /* MBEDTLS_ARIA_C */
-
-
-    { 0, "",
-      MBEDTLS_CIPHER_NONE, MBEDTLS_MD_NONE, MBEDTLS_KEY_EXCHANGE_NONE,
-      0, 0, 0, 0, 0 }
-};
-
-#if defined(MBEDTLS_SSL_CIPHERSUITES)
-const int *mbedtls_ssl_list_ciphersuites( void )
-{
-    return( ciphersuite_preference );
-}
-#else
-#define MAX_CIPHERSUITES    sizeof( ciphersuite_definitions     ) /         \
-                            sizeof( ciphersuite_definitions[0]  )
-static int supported_ciphersuites[MAX_CIPHERSUITES];
-static int supported_init = 0;
-
-static int ciphersuite_is_removed( const mbedtls_ssl_ciphersuite_t *cs_info )
-{
-    (void)cs_info;
-
-#if defined(MBEDTLS_REMOVE_ARC4_CIPHERSUITES)
-    if( cs_info->cipher == MBEDTLS_CIPHER_ARC4_128 )
-        return( 1 );
-#endif /* MBEDTLS_REMOVE_ARC4_CIPHERSUITES */
-
-#if defined(MBEDTLS_REMOVE_3DES_CIPHERSUITES)
-    if( cs_info->cipher == MBEDTLS_CIPHER_DES_EDE3_ECB ||
-        cs_info->cipher == MBEDTLS_CIPHER_DES_EDE3_CBC )
-    {
-        return( 1 );
-    }
-#endif /* MBEDTLS_REMOVE_3DES_CIPHERSUITES */
-
-    return( 0 );
-}
-
-const int *mbedtls_ssl_list_ciphersuites( void )
-{
-    /*
-     * On initial call filter out all ciphersuites not supported by current
-     * build based on presence in the ciphersuite_definitions.
-     */
-    if( supported_init == 0 )
-    {
-        const int *p;
-        int *q;
-
-        for( p = ciphersuite_preference, q = supported_ciphersuites;
-             *p != 0 && q < supported_ciphersuites + MAX_CIPHERSUITES - 1;
-             p++ )
-        {
-            const mbedtls_ssl_ciphersuite_t *cs_info;
-            if( ( cs_info = mbedtls_ssl_ciphersuite_from_id( *p ) ) != NULL &&
-                !ciphersuite_is_removed( cs_info ) )
-            {
-                *(q++) = *p;
-            }
-        }
-        *q = 0;
-
-        supported_init = 1;
-    }
-
-    return( supported_ciphersuites );
-}
-#endif /* MBEDTLS_SSL_CIPHERSUITES */
-
-const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_string(
-                                                const char *ciphersuite_name )
-{
-    const mbedtls_ssl_ciphersuite_t *cur = ciphersuite_definitions;
-
-    if( NULL == ciphersuite_name )
-        return( NULL );
-
-    while( cur->id != 0 )
-    {
-        if( 0 == strcmp( cur->name, ciphersuite_name ) )
-            return( cur );
-
-        cur++;
-    }
-
-    return( NULL );
-}
-
-const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_id( int ciphersuite )
-{
-    const mbedtls_ssl_ciphersuite_t *cur = ciphersuite_definitions;
-
-    while( cur->id != 0 )
-    {
-        if( cur->id == ciphersuite )
-            return( cur );
-
-        cur++;
-    }
-
-    return( NULL );
-}
-
-const char *mbedtls_ssl_get_ciphersuite_name( const int ciphersuite_id )
-{
-    const mbedtls_ssl_ciphersuite_t *cur;
-
-    cur = mbedtls_ssl_ciphersuite_from_id( ciphersuite_id );
-
-    if( cur == NULL )
-        return( "unknown" );
-
-    return( cur->name );
-}
-
-int mbedtls_ssl_get_ciphersuite_id( const char *ciphersuite_name )
-{
-    const mbedtls_ssl_ciphersuite_t *cur;
-
-    cur = mbedtls_ssl_ciphersuite_from_string( ciphersuite_name );
-
-    if( cur == NULL )
-        return( 0 );
-
-    return( cur->id );
-}
-
-#if defined(MBEDTLS_PK_C)
-mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_pk_alg( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_RSA_PSK:
-            return( MBEDTLS_PK_RSA );
-
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
-            return( MBEDTLS_PK_ECDSA );
-
-        case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
-            return( MBEDTLS_PK_ECKEY );
-
-        default:
-            return( MBEDTLS_PK_NONE );
-    }
-}
-
-mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_alg( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
-            return( MBEDTLS_PK_RSA );
-
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
-            return( MBEDTLS_PK_ECDSA );
-
-        default:
-            return( MBEDTLS_PK_NONE );
-    }
-}
-
-#endif /* MBEDTLS_PK_C */
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-int mbedtls_ssl_ciphersuite_uses_ec( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK:
-        case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
-        case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
-        case MBEDTLS_KEY_EXCHANGE_ECJPAKE:
-            return( 1 );
-
-        default:
-            return( 0 );
-    }
-}
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED*/
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-int mbedtls_ssl_ciphersuite_uses_psk( const mbedtls_ssl_ciphersuite_t *info )
-{
-    switch( info->key_exchange )
-    {
-        case MBEDTLS_KEY_EXCHANGE_PSK:
-        case MBEDTLS_KEY_EXCHANGE_RSA_PSK:
-        case MBEDTLS_KEY_EXCHANGE_DHE_PSK:
-        case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK:
-            return( 1 );
-
-        default:
-            return( 0 );
-    }
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-#endif /* MBEDTLS_SSL_TLS_C */
diff --git a/library/ssl_cli.c b/library/ssl_cli.c
deleted file mode 100644
index 4e5b3a6..0000000
--- a/library/ssl_cli.c
+++ /dev/null
@@ -1,3944 +0,0 @@
-/*
- *  SSLv3/TLSv1 client-side functions
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_SSL_CLI_C)
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
-
-#include "mbedtls/debug.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/ssl_internal.h"
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "mbedtls/psa_util.h"
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-#include <string.h>
-
-#include <stdint.h>
-
-#if defined(MBEDTLS_HAVE_TIME)
-#include "mbedtls/platform_time.h"
-#endif
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-#include "mbedtls/platform_util.h"
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-static int ssl_conf_has_static_psk( mbedtls_ssl_config const *conf )
-{
-    if( conf->psk_identity     == NULL ||
-        conf->psk_identity_len == 0     )
-    {
-        return( 0 );
-    }
-
-    if( conf->psk != NULL && conf->psk_len != 0 )
-        return( 1 );
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( conf->psk_opaque != 0 )
-        return( 1 );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-static int ssl_conf_has_static_raw_psk( mbedtls_ssl_config const *conf )
-{
-    if( conf->psk_identity     == NULL ||
-        conf->psk_identity_len == 0     )
-    {
-        return( 0 );
-    }
-
-    if( conf->psk != NULL && conf->psk_len != 0 )
-        return( 1 );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-static void ssl_write_hostname_ext( mbedtls_ssl_context *ssl,
-                                    unsigned char *buf,
-                                    size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-    size_t hostname_len;
-
-    *olen = 0;
-
-    if( ssl->hostname == NULL )
-        return;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding server name extension: %s",
-                   ssl->hostname ) );
-
-    hostname_len = strlen( ssl->hostname );
-
-    if( end < p || (size_t)( end - p ) < hostname_len + 9 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    /*
-     * Sect. 3, RFC 6066 (TLS Extensions Definitions)
-     *
-     * In order to provide any of the server names, clients MAY include an
-     * extension of type "server_name" in the (extended) client hello. The
-     * "extension_data" field of this extension SHALL contain
-     * "ServerNameList" where:
-     *
-     * struct {
-     *     NameType name_type;
-     *     select (name_type) {
-     *         case host_name: HostName;
-     *     } name;
-     * } ServerName;
-     *
-     * enum {
-     *     host_name(0), (255)
-     * } NameType;
-     *
-     * opaque HostName<1..2^16-1>;
-     *
-     * struct {
-     *     ServerName server_name_list<1..2^16-1>
-     * } ServerNameList;
-     *
-     */
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME      ) & 0xFF );
-
-    *p++ = (unsigned char)( ( (hostname_len + 5) >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( (hostname_len + 5)      ) & 0xFF );
-
-    *p++ = (unsigned char)( ( (hostname_len + 3) >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( (hostname_len + 3)      ) & 0xFF );
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME ) & 0xFF );
-    *p++ = (unsigned char)( ( hostname_len >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( hostname_len      ) & 0xFF );
-
-    memcpy( p, ssl->hostname, hostname_len );
-
-    *olen = hostname_len + 9;
-}
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-static void ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl,
-                                         unsigned char *buf,
-                                         size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-
-    *olen = 0;
-
-    /* We're always including an TLS_EMPTY_RENEGOTIATION_INFO_SCSV in the
-     * initial ClientHello, in which case also adding the renegotiation
-     * info extension is NOT RECOMMENDED as per RFC 5746 Section 3.4. */
-    if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-        return;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding renegotiation extension" ) );
-
-    if( end < p || (size_t)( end - p ) < 5 + ssl->verify_data_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    /*
-     * Secure renegotiation
-     */
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = ( ssl->verify_data_len + 1 ) & 0xFF;
-    *p++ = ssl->verify_data_len & 0xFF;
-
-    memcpy( p, ssl->own_verify_data, ssl->verify_data_len );
-
-    *olen = 5 + ssl->verify_data_len;
-}
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-/*
- * Only if we handle at least one key exchange that needs signatures.
- */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-static void ssl_write_signature_algorithms_ext( mbedtls_ssl_context *ssl,
-                                                unsigned char *buf,
-                                                size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-    size_t sig_alg_len = 0;
-    const int *md;
-#if defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C)
-    unsigned char *sig_alg_list = buf + 6;
-#endif
-
-    *olen = 0;
-
-    if( ssl->conf->max_minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
-        return;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding signature_algorithms extension" ) );
-
-    for( md = ssl->conf->sig_hashes; *md != MBEDTLS_MD_NONE; md++ )
-    {
-#if defined(MBEDTLS_ECDSA_C)
-        sig_alg_len += 2;
-#endif
-#if defined(MBEDTLS_RSA_C)
-        sig_alg_len += 2;
-#endif
-    }
-
-    if( end < p || (size_t)( end - p ) < sig_alg_len + 6 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    /*
-     * Prepare signature_algorithms extension (TLS 1.2)
-     */
-    sig_alg_len = 0;
-
-    for( md = ssl->conf->sig_hashes; *md != MBEDTLS_MD_NONE; md++ )
-    {
-#if defined(MBEDTLS_ECDSA_C)
-        sig_alg_list[sig_alg_len++] = mbedtls_ssl_hash_from_md_alg( *md );
-        sig_alg_list[sig_alg_len++] = MBEDTLS_SSL_SIG_ECDSA;
-#endif
-#if defined(MBEDTLS_RSA_C)
-        sig_alg_list[sig_alg_len++] = mbedtls_ssl_hash_from_md_alg( *md );
-        sig_alg_list[sig_alg_len++] = MBEDTLS_SSL_SIG_RSA;
-#endif
-    }
-
-    /*
-     * enum {
-     *     none(0), md5(1), sha1(2), sha224(3), sha256(4), sha384(5),
-     *     sha512(6), (255)
-     * } HashAlgorithm;
-     *
-     * enum { anonymous(0), rsa(1), dsa(2), ecdsa(3), (255) }
-     *   SignatureAlgorithm;
-     *
-     * struct {
-     *     HashAlgorithm hash;
-     *     SignatureAlgorithm signature;
-     * } SignatureAndHashAlgorithm;
-     *
-     * SignatureAndHashAlgorithm
-     *   supported_signature_algorithms<2..2^16-2>;
-     */
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SIG_ALG >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SIG_ALG      ) & 0xFF );
-
-    *p++ = (unsigned char)( ( ( sig_alg_len + 2 ) >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( ( sig_alg_len + 2 )      ) & 0xFF );
-
-    *p++ = (unsigned char)( ( sig_alg_len >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( sig_alg_len      ) & 0xFF );
-
-    *olen = 6 + sig_alg_len;
-}
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
-          MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-static void ssl_write_supported_elliptic_curves_ext( mbedtls_ssl_context *ssl,
-                                                     unsigned char *buf,
-                                                     size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-    unsigned char *elliptic_curve_list = p + 6;
-    size_t elliptic_curve_len = 0;
-    const mbedtls_ecp_curve_info *info;
-#if defined(MBEDTLS_ECP_C)
-    const mbedtls_ecp_group_id *grp_id;
-#else
-    ((void) ssl);
-#endif
-
-    *olen = 0;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding supported_elliptic_curves extension" ) );
-
-#if defined(MBEDTLS_ECP_C)
-    for( grp_id = ssl->conf->curve_list; *grp_id != MBEDTLS_ECP_DP_NONE; grp_id++ )
-#else
-    for( info = mbedtls_ecp_curve_list(); info->grp_id != MBEDTLS_ECP_DP_NONE; info++ )
-#endif
-    {
-#if defined(MBEDTLS_ECP_C)
-        info = mbedtls_ecp_curve_info_from_grp_id( *grp_id );
-#endif
-        if( info == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid curve in ssl configuration" ) );
-            return;
-        }
-
-        elliptic_curve_len += 2;
-    }
-
-    if( end < p || (size_t)( end - p ) < 6 + elliptic_curve_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    elliptic_curve_len = 0;
-
-#if defined(MBEDTLS_ECP_C)
-    for( grp_id = ssl->conf->curve_list; *grp_id != MBEDTLS_ECP_DP_NONE; grp_id++ )
-#else
-    for( info = mbedtls_ecp_curve_list(); info->grp_id != MBEDTLS_ECP_DP_NONE; info++ )
-#endif
-    {
-#if defined(MBEDTLS_ECP_C)
-        info = mbedtls_ecp_curve_info_from_grp_id( *grp_id );
-#endif
-        elliptic_curve_list[elliptic_curve_len++] = info->tls_id >> 8;
-        elliptic_curve_list[elliptic_curve_len++] = info->tls_id & 0xFF;
-    }
-
-    if( elliptic_curve_len == 0 )
-        return;
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES      ) & 0xFF );
-
-    *p++ = (unsigned char)( ( ( elliptic_curve_len + 2 ) >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( ( elliptic_curve_len + 2 )      ) & 0xFF );
-
-    *p++ = (unsigned char)( ( ( elliptic_curve_len     ) >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( ( elliptic_curve_len     )      ) & 0xFF );
-
-    *olen = 6 + elliptic_curve_len;
-}
-
-static void ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl,
-                                                   unsigned char *buf,
-                                                   size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-
-    *olen = 0;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding supported_point_formats extension" ) );
-
-    if( end < p || (size_t)( end - p ) < 6 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 2;
-
-    *p++ = 1;
-    *p++ = MBEDTLS_ECP_PF_UNCOMPRESSED;
-
-    *olen = 6;
-}
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
-          MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-static void ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl,
-                                        unsigned char *buf,
-                                        size_t *olen )
-{
-    int ret;
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-    size_t kkpp_len;
-
-    *olen = 0;
-
-    /* Skip costly extension if we can't use EC J-PAKE anyway */
-    if( mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 )
-        return;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding ecjpake_kkpp extension" ) );
-
-    if( end - p < 4 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP      ) & 0xFF );
-
-    /*
-     * We may need to send ClientHello multiple times for Hello verification.
-     * We don't want to compute fresh values every time (both for performance
-     * and consistency reasons), so cache the extension content.
-     */
-    if( ssl->handshake->ecjpake_cache == NULL ||
-        ssl->handshake->ecjpake_cache_len == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "generating new ecjpake parameters" ) );
-
-        ret = mbedtls_ecjpake_write_round_one( &ssl->handshake->ecjpake_ctx,
-                                        p + 2, end - p - 2, &kkpp_len,
-                                        ssl->conf->f_rng, ssl->conf->p_rng );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1 , "mbedtls_ecjpake_write_round_one", ret );
-            return;
-        }
-
-        ssl->handshake->ecjpake_cache = mbedtls_calloc( 1, kkpp_len );
-        if( ssl->handshake->ecjpake_cache == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "allocation failed" ) );
-            return;
-        }
-
-        memcpy( ssl->handshake->ecjpake_cache, p + 2, kkpp_len );
-        ssl->handshake->ecjpake_cache_len = kkpp_len;
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "re-using cached ecjpake parameters" ) );
-
-        kkpp_len = ssl->handshake->ecjpake_cache_len;
-
-        if( (size_t)( end - p - 2 ) < kkpp_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-            return;
-        }
-
-        memcpy( p + 2, ssl->handshake->ecjpake_cache, kkpp_len );
-    }
-
-    *p++ = (unsigned char)( ( kkpp_len >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( kkpp_len      ) & 0xFF );
-
-    *olen = kkpp_len + 4;
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-static void ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl,
-                                               unsigned char *buf,
-                                               size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-
-    *olen = 0;
-
-    if( ssl->conf->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE ) {
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding max_fragment_length extension" ) );
-
-    if( end < p || (size_t)( end - p ) < 5 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 1;
-
-    *p++ = ssl->conf->mfl_code;
-
-    *olen = 5;
-}
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-static void ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl,
-                                          unsigned char *buf, size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-
-    *olen = 0;
-
-    if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED )
-    {
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding truncated_hmac extension" ) );
-
-    if( end < p || (size_t)( end - p ) < 4 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 0x00;
-
-    *olen = 4;
-}
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
-                                       unsigned char *buf, size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-
-    *olen = 0;
-
-    if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED ||
-        ssl->conf->max_minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding encrypt_then_mac "
-                        "extension" ) );
-
-    if( end < p || (size_t)( end - p ) < 4 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 0x00;
-
-    *olen = 4;
-}
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl,
-                                       unsigned char *buf, size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-
-    *olen = 0;
-
-    if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
-        ssl->conf->max_minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding extended_master_secret "
-                        "extension" ) );
-
-    if( end < p || (size_t)( end - p ) < 4 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 0x00;
-
-    *olen = 4;
-}
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-static void ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl,
-                                          unsigned char *buf, size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-    size_t tlen = ssl->session_negotiate->ticket_len;
-
-    *olen = 0;
-
-    if( ssl->conf->session_tickets == MBEDTLS_SSL_SESSION_TICKETS_DISABLED )
-    {
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding session ticket extension" ) );
-
-    if( end < p || (size_t)( end - p ) < 4 + tlen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET      ) & 0xFF );
-
-    *p++ = (unsigned char)( ( tlen >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( tlen      ) & 0xFF );
-
-    *olen = 4;
-
-    if( ssl->session_negotiate->ticket == NULL || tlen == 0 )
-    {
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "sending session ticket of length %d", tlen ) );
-
-    memcpy( p, ssl->session_negotiate->ticket, tlen );
-
-    *olen += tlen;
-}
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-#if defined(MBEDTLS_SSL_ALPN)
-static void ssl_write_alpn_ext( mbedtls_ssl_context *ssl,
-                                unsigned char *buf, size_t *olen )
-{
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-    size_t alpnlen = 0;
-    const char **cur;
-
-    *olen = 0;
-
-    if( ssl->conf->alpn_list == NULL )
-    {
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding alpn extension" ) );
-
-    for( cur = ssl->conf->alpn_list; *cur != NULL; cur++ )
-        alpnlen += (unsigned char)( strlen( *cur ) & 0xFF ) + 1;
-
-    if( end < p || (size_t)( end - p ) < 6 + alpnlen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN      ) & 0xFF );
-
-    /*
-     * opaque ProtocolName<1..2^8-1>;
-     *
-     * struct {
-     *     ProtocolName protocol_name_list<2..2^16-1>
-     * } ProtocolNameList;
-     */
-
-    /* Skip writing extension and list length for now */
-    p += 4;
-
-    for( cur = ssl->conf->alpn_list; *cur != NULL; cur++ )
-    {
-        *p = (unsigned char)( strlen( *cur ) & 0xFF );
-        memcpy( p + 1, *cur, *p );
-        p += 1 + *p;
-    }
-
-    *olen = p - buf;
-
-    /* List length = olen - 2 (ext_type) - 2 (ext_len) - 2 (list_len) */
-    buf[4] = (unsigned char)( ( ( *olen - 6 ) >> 8 ) & 0xFF );
-    buf[5] = (unsigned char)( ( ( *olen - 6 )      ) & 0xFF );
-
-    /* Extension length = olen - 2 (ext_type) - 2 (ext_len) */
-    buf[2] = (unsigned char)( ( ( *olen - 4 ) >> 8 ) & 0xFF );
-    buf[3] = (unsigned char)( ( ( *olen - 4 )      ) & 0xFF );
-}
-#endif /* MBEDTLS_SSL_ALPN */
-
-/*
- * Generate random bytes for ClientHello
- */
-static int ssl_generate_random( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    unsigned char *p = ssl->handshake->randbytes;
-#if defined(MBEDTLS_HAVE_TIME)
-    mbedtls_time_t t;
-#endif
-
-    /*
-     * When responding to a verify request, MUST reuse random (RFC 6347 4.2.1)
-     */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake->verify_cookie != NULL )
-    {
-        return( 0 );
-    }
-#endif
-
-#if defined(MBEDTLS_HAVE_TIME)
-    t = mbedtls_time( NULL );
-    *p++ = (unsigned char)( t >> 24 );
-    *p++ = (unsigned char)( t >> 16 );
-    *p++ = (unsigned char)( t >>  8 );
-    *p++ = (unsigned char)( t       );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, current time: %lu", t ) );
-#else
-    if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 )
-        return( ret );
-
-    p += 4;
-#endif /* MBEDTLS_HAVE_TIME */
-
-    if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 28 ) ) != 0 )
-        return( ret );
-
-    return( 0 );
-}
-
-/**
- * \brief           Validate cipher suite against config in SSL context.
- *
- * \param suite_info    cipher suite to validate
- * \param ssl           SSL context
- * \param min_minor_ver Minimal minor version to accept a cipher suite
- * \param max_minor_ver Maximal minor version to accept a cipher suite
- *
- * \return          0 if valid, else 1
- */
-static int ssl_validate_ciphersuite( const mbedtls_ssl_ciphersuite_t * suite_info,
-                                     const mbedtls_ssl_context * ssl,
-                                     int min_minor_ver, int max_minor_ver )
-{
-    (void) ssl;
-    if( suite_info == NULL )
-        return( 1 );
-
-    if( suite_info->min_minor_ver > max_minor_ver ||
-            suite_info->max_minor_ver < min_minor_ver )
-        return( 1 );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-            ( suite_info->flags & MBEDTLS_CIPHERSUITE_NODTLS ) )
-        return( 1 );
-#endif
-
-#if defined(MBEDTLS_ARC4_C)
-    if( ssl->conf->arc4_disabled == MBEDTLS_SSL_ARC4_DISABLED &&
-            suite_info->cipher == MBEDTLS_CIPHER_ARC4_128 )
-        return( 1 );
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE &&
-            mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 )
-        return( 1 );
-#endif
-
-    /* Don't suggest PSK-based ciphersuite if no PSK is available. */
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    if( mbedtls_ssl_ciphersuite_uses_psk( suite_info ) &&
-        ssl_conf_has_static_psk( ssl->conf ) == 0 )
-    {
-        return( 1 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-    return( 0 );
-}
-
-static int ssl_write_client_hello( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    size_t i, n, olen, ext_len = 0;
-    unsigned char *buf;
-    unsigned char *p, *q;
-    unsigned char offer_compress;
-    const int *ciphersuites;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    int uses_ec = 0;
-#endif
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write client hello" ) );
-
-    if( ssl->conf->f_rng == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided") );
-        return( MBEDTLS_ERR_SSL_NO_RNG );
-    }
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
-#endif
-    {
-        ssl->major_ver = ssl->conf->min_major_ver;
-        ssl->minor_ver = ssl->conf->min_minor_ver;
-    }
-
-    if( ssl->conf->max_major_ver == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "configured max major version is invalid, "
-                            "consider using mbedtls_ssl_config_defaults()" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    /*
-     *     0  .   0   handshake type
-     *     1  .   3   handshake length
-     *     4  .   5   highest version supported
-     *     6  .   9   current UNIX time
-     *    10  .  37   random bytes
-     */
-    buf = ssl->out_msg;
-    p = buf + 4;
-
-    mbedtls_ssl_write_version( ssl->conf->max_major_ver, ssl->conf->max_minor_ver,
-                       ssl->conf->transport, p );
-    p += 2;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, max version: [%d:%d]",
-                   buf[4], buf[5] ) );
-
-    if( ( ret = ssl_generate_random( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "ssl_generate_random", ret );
-        return( ret );
-    }
-
-    memcpy( p, ssl->handshake->randbytes, 32 );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, random bytes", p, 32 );
-    p += 32;
-
-    /*
-     *    38  .  38   session id length
-     *    39  . 39+n  session id
-     *   39+n . 39+n  DTLS only: cookie length (1 byte)
-     *   40+n .  ..   DTSL only: cookie
-     *   ..   . ..    ciphersuitelist length (2 bytes)
-     *   ..   . ..    ciphersuitelist
-     *   ..   . ..    compression methods length (1 byte)
-     *   ..   . ..    compression methods
-     *   ..   . ..    extensions length (2 bytes)
-     *   ..   . ..    extensions
-     */
-    n = ssl->session_negotiate->id_len;
-
-    if( n < 16 || n > 32 ||
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-        ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ||
-#endif
-        ssl->handshake->resume == 0 )
-    {
-        n = 0;
-    }
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    /*
-     * RFC 5077 section 3.4: "When presenting a ticket, the client MAY
-     * generate and include a Session ID in the TLS ClientHello."
-     */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
-#endif
-    {
-        if( ssl->session_negotiate->ticket != NULL &&
-                ssl->session_negotiate->ticket_len != 0 )
-        {
-            ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->session_negotiate->id, 32 );
-
-            if( ret != 0 )
-                return( ret );
-
-            ssl->session_negotiate->id_len = n = 32;
-        }
-    }
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-    *p++ = (unsigned char) n;
-
-    for( i = 0; i < n; i++ )
-        *p++ = ssl->session_negotiate->id[i];
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, session id len.: %d", n ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3,   "client hello, session id", buf + 39, n );
-
-    /*
-     * DTLS cookie
-     */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        if( ssl->handshake->verify_cookie == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "no verify cookie to send" ) );
-            *p++ = 0;
-        }
-        else
-        {
-            MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, cookie",
-                              ssl->handshake->verify_cookie,
-                              ssl->handshake->verify_cookie_len );
-
-            *p++ = ssl->handshake->verify_cookie_len;
-            memcpy( p, ssl->handshake->verify_cookie,
-                       ssl->handshake->verify_cookie_len );
-            p += ssl->handshake->verify_cookie_len;
-        }
-    }
-#endif
-
-    /*
-     * Ciphersuite list
-     */
-    ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver];
-
-    /* Skip writing ciphersuite length for now */
-    n = 0;
-    q = p;
-    p += 2;
-
-    for( i = 0; ciphersuites[i] != 0; i++ )
-    {
-        ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( ciphersuites[i] );
-
-        if( ssl_validate_ciphersuite( ciphersuite_info, ssl,
-                                      ssl->conf->min_minor_ver,
-                                      ssl->conf->max_minor_ver ) != 0 )
-            continue;
-
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, add ciphersuite: %04x",
-                                    ciphersuites[i] ) );
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-        uses_ec |= mbedtls_ssl_ciphersuite_uses_ec( ciphersuite_info );
-#endif
-
-        n++;
-        *p++ = (unsigned char)( ciphersuites[i] >> 8 );
-        *p++ = (unsigned char)( ciphersuites[i]      );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, got %d ciphersuites (excluding SCSVs)", n ) );
-
-    /*
-     * Add TLS_EMPTY_RENEGOTIATION_INFO_SCSV
-     */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
-#endif
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "adding EMPTY_RENEGOTIATION_INFO_SCSV" ) );
-        *p++ = (unsigned char)( MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO >> 8 );
-        *p++ = (unsigned char)( MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO      );
-        n++;
-    }
-
-    /* Some versions of OpenSSL don't handle it correctly if not at end */
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
-    if( ssl->conf->fallback == MBEDTLS_SSL_IS_FALLBACK )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "adding FALLBACK_SCSV" ) );
-        *p++ = (unsigned char)( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 );
-        *p++ = (unsigned char)( MBEDTLS_SSL_FALLBACK_SCSV_VALUE      );
-        n++;
-    }
-#endif
-
-    *q++ = (unsigned char)( n >> 7 );
-    *q++ = (unsigned char)( n << 1 );
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    offer_compress = 1;
-#else
-    offer_compress = 0;
-#endif
-
-    /*
-     * We don't support compression with DTLS right now: if many records come
-     * in the same datagram, uncompressing one could overwrite the next one.
-     * We don't want to add complexity for handling that case unless there is
-     * an actual need for it.
-     */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        offer_compress = 0;
-#endif
-
-    if( offer_compress )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress len.: %d", 2 ) );
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress alg.: %d %d",
-                            MBEDTLS_SSL_COMPRESS_DEFLATE, MBEDTLS_SSL_COMPRESS_NULL ) );
-
-        *p++ = 2;
-        *p++ = MBEDTLS_SSL_COMPRESS_DEFLATE;
-        *p++ = MBEDTLS_SSL_COMPRESS_NULL;
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress len.: %d", 1 ) );
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress alg.: %d",
-                            MBEDTLS_SSL_COMPRESS_NULL ) );
-
-        *p++ = 1;
-        *p++ = MBEDTLS_SSL_COMPRESS_NULL;
-    }
-
-    // First write extensions, then the total length
-    //
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    ssl_write_hostname_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-    /* Note that TLS_EMPTY_RENEGOTIATION_INFO_SCSV is always added
-     * even if MBEDTLS_SSL_RENEGOTIATION is not defined. */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    ssl_write_renegotiation_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-    ssl_write_signature_algorithms_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( uses_ec )
-    {
-        ssl_write_supported_elliptic_curves_ext( ssl, p + 2 + ext_len, &olen );
-        ext_len += olen;
-
-        ssl_write_supported_point_formats_ext( ssl, p + 2 + ext_len, &olen );
-        ext_len += olen;
-    }
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    ssl_write_ecjpake_kkpp_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    ssl_write_max_fragment_length_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    ssl_write_truncated_hmac_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    ssl_write_encrypt_then_mac_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    ssl_write_extended_ms_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_ALPN)
-    ssl_write_alpn_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    ssl_write_session_ticket_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-    /* olen unused if all extensions are disabled */
-    ((void) olen);
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, total extension length: %d",
-                   ext_len ) );
-
-    if( ext_len > 0 )
-    {
-        *p++ = (unsigned char)( ( ext_len >> 8 ) & 0xFF );
-        *p++ = (unsigned char)( ( ext_len      ) & 0xFF );
-        p += ext_len;
-    }
-
-    ssl->out_msglen  = p - buf;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_CLIENT_HELLO;
-
-    ssl->state++;
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        mbedtls_ssl_send_flight_completed( ssl );
-#endif
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
-        return( ret );
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write client hello" ) );
-
-    return( 0 );
-}
-
-static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
-                                         const unsigned char *buf,
-                                         size_t len )
-{
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
-    {
-        /* Check verify-data in constant-time. The length OTOH is no secret */
-        if( len    != 1 + ssl->verify_data_len * 2 ||
-            buf[0] !=     ssl->verify_data_len * 2 ||
-            mbedtls_ssl_safer_memcmp( buf + 1,
-                          ssl->own_verify_data, ssl->verify_data_len ) != 0 ||
-            mbedtls_ssl_safer_memcmp( buf + 1 + ssl->verify_data_len,
-                          ssl->peer_verify_data, ssl->verify_data_len ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-        }
-    }
-    else
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-    {
-        if( len != 1 || buf[0] != 0x00 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-        }
-
-        ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
-    }
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl,
-                                              const unsigned char *buf,
-                                              size_t len )
-{
-    /*
-     * server should use the extension only if we did,
-     * and if so the server's value should match ours (and len is always 1)
-     */
-    if( ssl->conf->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE ||
-        len != 1 ||
-        buf[0] != ssl->conf->mfl_code )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching max fragment length extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl,
-                                         const unsigned char *buf,
-                                         size_t len )
-{
-    if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED ||
-        len != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching truncated HMAC extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    ((void) buf);
-
-    ssl->session_negotiate->trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
-                                         const unsigned char *buf,
-                                         size_t len )
-{
-    if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED ||
-        ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ||
-        len != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching encrypt-then-MAC extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    ((void) buf);
-
-    ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
-                                         const unsigned char *buf,
-                                         size_t len )
-{
-    if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
-        ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ||
-        len != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching extended master secret extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    ((void) buf);
-
-    ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl,
-                                         const unsigned char *buf,
-                                         size_t len )
-{
-    if( ssl->conf->session_tickets == MBEDTLS_SSL_SESSION_TICKETS_DISABLED ||
-        len != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching session ticket extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    ((void) buf);
-
-    ssl->handshake->new_session_ticket = 1;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-static int ssl_parse_supported_point_formats_ext( mbedtls_ssl_context *ssl,
-                                                  const unsigned char *buf,
-                                                  size_t len )
-{
-    size_t list_size;
-    const unsigned char *p;
-
-    if( len == 0 || (size_t)( buf[0] + 1 ) != len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-    list_size = buf[0];
-
-    p = buf + 1;
-    while( list_size > 0 )
-    {
-        if( p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED ||
-            p[0] == MBEDTLS_ECP_PF_COMPRESSED )
-        {
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C)
-            ssl->handshake->ecdh_ctx.point_format = p[0];
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-            ssl->handshake->ecjpake_ctx.point_format = p[0];
-#endif
-            MBEDTLS_SSL_DEBUG_MSG( 4, ( "point format selected: %d", p[0] ) );
-            return( 0 );
-        }
-
-        list_size--;
-        p++;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "no point format in common" ) );
-    mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                    MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-    return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-}
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
-          MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl,
-                                   const unsigned char *buf,
-                                   size_t len )
-{
-    int ret;
-
-    if( ssl->transform_negotiate->ciphersuite_info->key_exchange !=
-        MBEDTLS_KEY_EXCHANGE_ECJPAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip ecjpake kkpp extension" ) );
-        return( 0 );
-    }
-
-    /* If we got here, we no longer need our cached extension */
-    mbedtls_free( ssl->handshake->ecjpake_cache );
-    ssl->handshake->ecjpake_cache = NULL;
-    ssl->handshake->ecjpake_cache_len = 0;
-
-    if( ( ret = mbedtls_ecjpake_read_round_one( &ssl->handshake->ecjpake_ctx,
-                                                buf, len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( ret );
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_SSL_ALPN)
-static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl,
-                               const unsigned char *buf, size_t len )
-{
-    size_t list_len, name_len;
-    const char **p;
-
-    /* If we didn't send it, the server shouldn't send it */
-    if( ssl->conf->alpn_list == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching ALPN extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    /*
-     * opaque ProtocolName<1..2^8-1>;
-     *
-     * struct {
-     *     ProtocolName protocol_name_list<2..2^16-1>
-     * } ProtocolNameList;
-     *
-     * the "ProtocolNameList" MUST contain exactly one "ProtocolName"
-     */
-
-    /* Min length is 2 (list_len) + 1 (name_len) + 1 (name) */
-    if( len < 4 )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    list_len = ( buf[0] << 8 ) | buf[1];
-    if( list_len != len - 2 )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    name_len = buf[2];
-    if( name_len != list_len - 1 )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    /* Check that the server chosen protocol was in our list and save it */
-    for( p = ssl->conf->alpn_list; *p != NULL; p++ )
-    {
-        if( name_len == strlen( *p ) &&
-            memcmp( buf + 3, *p, name_len ) == 0 )
-        {
-            ssl->alpn_chosen = *p;
-            return( 0 );
-        }
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "ALPN extension: no matching protocol" ) );
-    mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                    MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-    return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-}
-#endif /* MBEDTLS_SSL_ALPN */
-
-/*
- * Parse HelloVerifyRequest.  Only called after verifying the HS type.
- */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl )
-{
-    const unsigned char *p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
-    int major_ver, minor_ver;
-    unsigned char cookie_len;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse hello verify request" ) );
-
-    /*
-     * struct {
-     *   ProtocolVersion server_version;
-     *   opaque cookie<0..2^8-1>;
-     * } HelloVerifyRequest;
-     */
-    MBEDTLS_SSL_DEBUG_BUF( 3, "server version", p, 2 );
-    mbedtls_ssl_read_version( &major_ver, &minor_ver, ssl->conf->transport, p );
-    p += 2;
-
-    /*
-     * Since the RFC is not clear on this point, accept DTLS 1.0 (TLS 1.1)
-     * even is lower than our min version.
-     */
-    if( major_ver < MBEDTLS_SSL_MAJOR_VERSION_3 ||
-        minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 ||
-        major_ver > ssl->conf->max_major_ver  ||
-        minor_ver > ssl->conf->max_minor_ver  )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server version" ) );
-
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
-
-        return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
-    }
-
-    cookie_len = *p++;
-    MBEDTLS_SSL_DEBUG_BUF( 3, "cookie", p, cookie_len );
-
-    if( ( ssl->in_msg + ssl->in_msglen ) - p < cookie_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1,
-            ( "cookie length does not match incoming message size" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                    MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    mbedtls_free( ssl->handshake->verify_cookie );
-
-    ssl->handshake->verify_cookie = mbedtls_calloc( 1, cookie_len );
-    if( ssl->handshake->verify_cookie  == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc failed (%d bytes)", cookie_len ) );
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    }
-
-    memcpy( ssl->handshake->verify_cookie, p, cookie_len );
-    ssl->handshake->verify_cookie_len = cookie_len;
-
-    /* Start over at ClientHello */
-    ssl->state = MBEDTLS_SSL_CLIENT_HELLO;
-    mbedtls_ssl_reset_checksum( ssl );
-
-    mbedtls_ssl_recv_flight_completed( ssl );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse hello verify request" ) );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
-{
-    int ret, i;
-    size_t n;
-    size_t ext_len;
-    unsigned char *buf, *ext;
-    unsigned char comp;
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    int accept_comp;
-#endif
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    int renegotiation_info_seen = 0;
-#endif
-    int handshake_failure = 0;
-    const mbedtls_ssl_ciphersuite_t *suite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server hello" ) );
-
-    buf = ssl->in_msg;
-
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        /* No alert on a read error. */
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-        return( ret );
-    }
-
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-        if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-        {
-            ssl->renego_records_seen++;
-
-            if( ssl->conf->renego_max_records >= 0 &&
-                ssl->renego_records_seen > ssl->conf->renego_max_records )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation requested, "
-                                    "but not honored by server" ) );
-                return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-            }
-
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-handshake message during renego" ) );
-
-            ssl->keep_current_message = 1;
-            return( MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO );
-        }
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        if( buf[0] == MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "received hello verify request" ) );
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello" ) );
-            return( ssl_parse_hello_verify_request( ssl ) );
-        }
-        else
-        {
-            /* We made it through the verification process */
-            mbedtls_free( ssl->handshake->verify_cookie );
-            ssl->handshake->verify_cookie = NULL;
-            ssl->handshake->verify_cookie_len = 0;
-        }
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    if( ssl->in_hslen < 38 + mbedtls_ssl_hs_hdr_len( ssl ) ||
-        buf[0] != MBEDTLS_SSL_HS_SERVER_HELLO )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    /*
-     *  0   .  1    server_version
-     *  2   . 33    random (maybe including 4 bytes of Unix time)
-     * 34   . 34    session_id length = n
-     * 35   . 34+n  session_id
-     * 35+n . 36+n  cipher_suite
-     * 37+n . 37+n  compression_method
-     *
-     * 38+n . 39+n  extensions length (optional)
-     * 40+n .  ..   extensions
-     */
-    buf += mbedtls_ssl_hs_hdr_len( ssl );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, version", buf + 0, 2 );
-    mbedtls_ssl_read_version( &ssl->major_ver, &ssl->minor_ver,
-                      ssl->conf->transport, buf + 0 );
-
-    if( ssl->major_ver < ssl->conf->min_major_ver ||
-        ssl->minor_ver < ssl->conf->min_minor_ver ||
-        ssl->major_ver > ssl->conf->max_major_ver ||
-        ssl->minor_ver > ssl->conf->max_minor_ver )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "server version out of bounds - "
-                            " min: [%d:%d], server: [%d:%d], max: [%d:%d]",
-                            ssl->conf->min_major_ver, ssl->conf->min_minor_ver,
-                            ssl->major_ver, ssl->minor_ver,
-                            ssl->conf->max_major_ver, ssl->conf->max_minor_ver ) );
-
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
-
-        return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu",
-                           ( (uint32_t) buf[2] << 24 ) |
-                           ( (uint32_t) buf[3] << 16 ) |
-                           ( (uint32_t) buf[4] <<  8 ) |
-                           ( (uint32_t) buf[5]       ) ) );
-
-    memcpy( ssl->handshake->randbytes + 32, buf + 2, 32 );
-
-    n = buf[34];
-
-    MBEDTLS_SSL_DEBUG_BUF( 3,   "server hello, random bytes", buf + 2, 32 );
-
-    if( n > 32 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    if( ssl->in_hslen > mbedtls_ssl_hs_hdr_len( ssl ) + 39 + n )
-    {
-        ext_len = ( ( buf[38 + n] <<  8 )
-                  | ( buf[39 + n]       ) );
-
-        if( ( ext_len > 0 && ext_len < 4 ) ||
-            ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + 40 + n + ext_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-        }
-    }
-    else if( ssl->in_hslen == mbedtls_ssl_hs_hdr_len( ssl ) + 38 + n )
-    {
-        ext_len = 0;
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    /* ciphersuite (used later) */
-    i = ( buf[35 + n] << 8 ) | buf[36 + n];
-
-    /*
-     * Read and check compression
-     */
-    comp = buf[37 + n];
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    /* See comments in ssl_write_client_hello() */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        accept_comp = 0;
-    else
-#endif
-        accept_comp = 1;
-
-    if( comp != MBEDTLS_SSL_COMPRESS_NULL &&
-        ( comp != MBEDTLS_SSL_COMPRESS_DEFLATE || accept_comp == 0 ) )
-#else /* MBEDTLS_ZLIB_SUPPORT */
-    if( comp != MBEDTLS_SSL_COMPRESS_NULL )
-#endif/* MBEDTLS_ZLIB_SUPPORT */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "server hello, bad compression: %d", comp ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-    }
-
-    /*
-     * Initialize update checksum functions
-     */
-    ssl->transform_negotiate->ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( i );
-
-    if( ssl->transform_negotiate->ciphersuite_info == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "ciphersuite info for %04x not found", i ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    mbedtls_ssl_optimize_checksum( ssl, ssl->transform_negotiate->ciphersuite_info );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3,   "server hello, session id", buf + 35, n );
-
-    /*
-     * Check if the session can be resumed
-     */
-    if( ssl->handshake->resume == 0 || n == 0 ||
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-        ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ||
-#endif
-        ssl->session_negotiate->ciphersuite != i ||
-        ssl->session_negotiate->compression != comp ||
-        ssl->session_negotiate->id_len != n ||
-        memcmp( ssl->session_negotiate->id, buf + 35, n ) != 0 )
-    {
-        ssl->state++;
-        ssl->handshake->resume = 0;
-#if defined(MBEDTLS_HAVE_TIME)
-        ssl->session_negotiate->start = mbedtls_time( NULL );
-#endif
-        ssl->session_negotiate->ciphersuite = i;
-        ssl->session_negotiate->compression = comp;
-        ssl->session_negotiate->id_len = n;
-        memcpy( ssl->session_negotiate->id, buf + 35, n );
-    }
-    else
-    {
-        ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC;
-
-        if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-            return( ret );
-        }
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "%s session has been resumed",
-                   ssl->handshake->resume ? "a" : "no" ) );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %04x", i ) );
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: %d", buf[37 + n] ) );
-
-    /*
-     * Perform cipher suite validation in same way as in ssl_write_client_hello.
-     */
-    i = 0;
-    while( 1 )
-    {
-        if( ssl->conf->ciphersuite_list[ssl->minor_ver][i] == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-        }
-
-        if( ssl->conf->ciphersuite_list[ssl->minor_ver][i++] ==
-            ssl->session_negotiate->ciphersuite )
-        {
-            break;
-        }
-    }
-
-    suite_info = mbedtls_ssl_ciphersuite_from_id( ssl->session_negotiate->ciphersuite );
-    if( ssl_validate_ciphersuite( suite_info, ssl, ssl->minor_ver, ssl->minor_ver ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %s", suite_info->name ) );
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA &&
-        ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        ssl->handshake->ecrs_enabled = 1;
-    }
-#endif
-
-    if( comp != MBEDTLS_SSL_COMPRESS_NULL
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-        && comp != MBEDTLS_SSL_COMPRESS_DEFLATE
-#endif
-      )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-    ssl->session_negotiate->compression = comp;
-
-    ext = buf + 40 + n;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "server hello, total extension length: %d", ext_len ) );
-
-    while( ext_len )
-    {
-        unsigned int ext_id   = ( ( ext[0] <<  8 )
-                                | ( ext[1]       ) );
-        unsigned int ext_size = ( ( ext[2] <<  8 )
-                                | ( ext[3]       ) );
-
-        if( ext_size + 4 > ext_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-        }
-
-        switch( ext_id )
-        {
-        case MBEDTLS_TLS_EXT_RENEGOTIATION_INFO:
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "found renegotiation extension" ) );
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-            renegotiation_info_seen = 1;
-#endif
-
-            if( ( ret = ssl_parse_renegotiation_info( ssl, ext + 4,
-                                                      ext_size ) ) != 0 )
-                return( ret );
-
-            break;
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-        case MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH:
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "found max_fragment_length extension" ) );
-
-            if( ( ret = ssl_parse_max_fragment_length_ext( ssl,
-                            ext + 4, ext_size ) ) != 0 )
-            {
-                return( ret );
-            }
-
-            break;
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-        case MBEDTLS_TLS_EXT_TRUNCATED_HMAC:
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "found truncated_hmac extension" ) );
-
-            if( ( ret = ssl_parse_truncated_hmac_ext( ssl,
-                            ext + 4, ext_size ) ) != 0 )
-            {
-                return( ret );
-            }
-
-            break;
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-        case MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC:
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "found encrypt_then_mac extension" ) );
-
-            if( ( ret = ssl_parse_encrypt_then_mac_ext( ssl,
-                            ext + 4, ext_size ) ) != 0 )
-            {
-                return( ret );
-            }
-
-            break;
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-        case MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET:
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "found extended_master_secret extension" ) );
-
-            if( ( ret = ssl_parse_extended_ms_ext( ssl,
-                            ext + 4, ext_size ) ) != 0 )
-            {
-                return( ret );
-            }
-
-            break;
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-        case MBEDTLS_TLS_EXT_SESSION_TICKET:
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "found session_ticket extension" ) );
-
-            if( ( ret = ssl_parse_session_ticket_ext( ssl,
-                            ext + 4, ext_size ) ) != 0 )
-            {
-                return( ret );
-            }
-
-            break;
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-        case MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS:
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported_point_formats extension" ) );
-
-            if( ( ret = ssl_parse_supported_point_formats_ext( ssl,
-                            ext + 4, ext_size ) ) != 0 )
-            {
-                return( ret );
-            }
-
-            break;
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
-          MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-        case MBEDTLS_TLS_EXT_ECJPAKE_KKPP:
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ecjpake_kkpp extension" ) );
-
-            if( ( ret = ssl_parse_ecjpake_kkpp( ssl,
-                            ext + 4, ext_size ) ) != 0 )
-            {
-                return( ret );
-            }
-
-            break;
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_SSL_ALPN)
-        case MBEDTLS_TLS_EXT_ALPN:
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "found alpn extension" ) );
-
-            if( ( ret = ssl_parse_alpn_ext( ssl, ext + 4, ext_size ) ) != 0 )
-                return( ret );
-
-            break;
-#endif /* MBEDTLS_SSL_ALPN */
-
-        default:
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)",
-                           ext_id ) );
-        }
-
-        ext_len -= 4 + ext_size;
-        ext += 4 + ext_size;
-
-        if( ext_len > 0 && ext_len < 4 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-        }
-    }
-
-    /*
-     * Renegotiation security checks
-     */
-    if( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
-        ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) );
-        handshake_failure = 1;
-    }
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
-             ssl->secure_renegotiation == MBEDTLS_SSL_SECURE_RENEGOTIATION &&
-             renegotiation_info_seen == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension missing (secure)" ) );
-        handshake_failure = 1;
-    }
-    else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
-             ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
-             ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation not allowed" ) );
-        handshake_failure = 1;
-    }
-    else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
-             ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
-             renegotiation_info_seen == 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension present (legacy)" ) );
-        handshake_failure = 1;
-    }
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-    if( handshake_failure == 1 )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello" ) );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) ||                       \
-    defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-static int ssl_parse_server_dh_params( mbedtls_ssl_context *ssl, unsigned char **p,
-                                       unsigned char *end )
-{
-    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-
-    /*
-     * Ephemeral DH parameters:
-     *
-     * struct {
-     *     opaque dh_p<1..2^16-1>;
-     *     opaque dh_g<1..2^16-1>;
-     *     opaque dh_Ys<1..2^16-1>;
-     * } ServerDHParams;
-     */
-    if( ( ret = mbedtls_dhm_read_params( &ssl->handshake->dhm_ctx, p, end ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 2, ( "mbedtls_dhm_read_params" ), ret );
-        return( ret );
-    }
-
-    if( ssl->handshake->dhm_ctx.len * 8 < ssl->conf->dhm_min_bitlen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "DHM prime too short: %d < %d",
-                                    ssl->handshake->dhm_ctx.len * 8,
-                                    ssl->conf->dhm_min_bitlen ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-    }
-
-    MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->handshake->dhm_ctx.P  );
-    MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->handshake->dhm_ctx.G  );
-    MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->handshake->dhm_ctx.GY );
-
-    return( ret );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||                     \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ||                   \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) ||                     \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||                      \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl )
-{
-    const mbedtls_ecp_curve_info *curve_info;
-    mbedtls_ecp_group_id grp_id;
-#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
-    grp_id = ssl->handshake->ecdh_ctx.grp.id;
-#else
-    grp_id = ssl->handshake->ecdh_ctx.grp_id;
-#endif
-
-    curve_info = mbedtls_ecp_curve_info_from_grp_id( grp_id );
-    if( curve_info == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDH curve: %s", curve_info->name ) );
-
-#if defined(MBEDTLS_ECP_C)
-    if( mbedtls_ssl_check_curve( ssl, grp_id ) != 0 )
-#else
-    if( ssl->handshake->ecdh_ctx.grp.nbits < 163 ||
-        ssl->handshake->ecdh_ctx.grp.nbits > 521 )
-#endif
-        return( -1 );
-
-    MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                            MBEDTLS_DEBUG_ECDH_QP );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO) &&                           \
-        ( defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||     \
-          defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) )
-static int ssl_parse_server_ecdh_params_psa( mbedtls_ssl_context *ssl,
-                                             unsigned char **p,
-                                             unsigned char *end )
-{
-    uint16_t tls_id;
-    uint8_t ecpoint_len;
-    mbedtls_ssl_handshake_params *handshake = ssl->handshake;
-
-    /*
-     * Parse ECC group
-     */
-
-    if( end - *p < 4 )
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-
-    /* First byte is curve_type; only named_curve is handled */
-    if( *(*p)++ != MBEDTLS_ECP_TLS_NAMED_CURVE )
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-
-    /* Next two bytes are the namedcurve value */
-    tls_id = *(*p)++;
-    tls_id <<= 8;
-    tls_id |= *(*p)++;
-
-    /* Convert EC group to PSA key type. */
-    if( ( handshake->ecdh_psa_curve =
-          mbedtls_psa_parse_tls_ecc_group( tls_id ) ) == 0 )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-    }
-
-    /*
-     * Put peer's ECDH public key in the format understood by PSA.
-     */
-
-    ecpoint_len = *(*p)++;
-    if( (size_t)( end - *p ) < ecpoint_len )
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-
-    if( mbedtls_psa_tls_ecpoint_to_psa_ec( handshake->ecdh_psa_curve,
-                                    *p, ecpoint_len,
-                                    handshake->ecdh_psa_peerkey,
-                                    sizeof( handshake->ecdh_psa_peerkey ),
-                                    &handshake->ecdh_psa_peerkey_len ) != 0 )
-    {
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-    }
-
-    *p += ecpoint_len;
-    return( 0 );
-}
-#endif /* MBEDTLS_USE_PSA_CRYPTO &&
-            ( MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
-              MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ) */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||                     \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ||                   \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-static int ssl_parse_server_ecdh_params( mbedtls_ssl_context *ssl,
-                                         unsigned char **p,
-                                         unsigned char *end )
-{
-    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-
-    /*
-     * Ephemeral ECDH parameters:
-     *
-     * struct {
-     *     ECParameters curve_params;
-     *     ECPoint      public;
-     * } ServerECDHParams;
-     */
-    if( ( ret = mbedtls_ecdh_read_params( &ssl->handshake->ecdh_ctx,
-                                  (const unsigned char **) p, end ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_read_params" ), ret );
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-        if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-            ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
-#endif
-        return( ret );
-    }
-
-    if( ssl_check_server_ecdh_params( ssl ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message (ECDHE curve)" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-    }
-
-    return( ret );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-static int ssl_parse_server_psk_hint( mbedtls_ssl_context *ssl,
-                                      unsigned char **p,
-                                      unsigned char *end )
-{
-    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-    size_t  len;
-    ((void) ssl);
-
-    /*
-     * PSK parameters:
-     *
-     * opaque psk_identity_hint<0..2^16-1>;
-     */
-    if( end - (*p) < 2 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message "
-                                    "(psk_identity_hint length)" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-    }
-    len = (*p)[0] << 8 | (*p)[1];
-    *p += 2;
-
-    if( end - (*p) < (int) len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message "
-                                    "(psk_identity_hint length)" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-    }
-
-    /*
-     * Note: we currently ignore the PKS identity hint, as we only allow one
-     * PSK to be provisionned on the client. This could be changed later if
-     * someone needs that feature.
-     */
-    *p += len;
-    ret = 0;
-
-    return( ret );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) ||                           \
-    defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-/*
- * Generate a pre-master secret and encrypt it with the server's RSA key
- */
-static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl,
-                                    size_t offset, size_t *olen,
-                                    size_t pms_offset )
-{
-    int ret;
-    size_t len_bytes = ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ? 0 : 2;
-    unsigned char *p = ssl->handshake->premaster + pms_offset;
-    mbedtls_pk_context * peer_pk;
-
-    if( offset + len_bytes > MBEDTLS_SSL_OUT_CONTENT_LEN )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small for encrypted pms" ) );
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-    }
-
-    /*
-     * Generate (part of) the pre-master as
-     *  struct {
-     *      ProtocolVersion client_version;
-     *      opaque random[46];
-     *  } PreMasterSecret;
-     */
-    mbedtls_ssl_write_version( ssl->conf->max_major_ver, ssl->conf->max_minor_ver,
-                       ssl->conf->transport, p );
-
-    if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p + 2, 46 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "f_rng", ret );
-        return( ret );
-    }
-
-    ssl->handshake->pmslen = 48;
-
-#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    peer_pk = &ssl->handshake->peer_pubkey;
-#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( ssl->session_negotiate->peer_cert == NULL )
-    {
-        /* Should never happen */
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-    peer_pk = &ssl->session_negotiate->peer_cert->pk;
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-    /*
-     * Now write it out, encrypted
-     */
-    if( ! mbedtls_pk_can_do( peer_pk, MBEDTLS_PK_RSA ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate key type mismatch" ) );
-        return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
-    }
-
-    if( ( ret = mbedtls_pk_encrypt( peer_pk,
-                            p, ssl->handshake->pmslen,
-                            ssl->out_msg + offset + len_bytes, olen,
-                            MBEDTLS_SSL_OUT_CONTENT_LEN - offset - len_bytes,
-                            ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_rsa_pkcs1_encrypt", ret );
-        return( ret );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( len_bytes == 2 )
-    {
-        ssl->out_msg[offset+0] = (unsigned char)( *olen >> 8 );
-        ssl->out_msg[offset+1] = (unsigned char)( *olen      );
-        *olen += 2;
-    }
-#endif
-
-#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    /* We don't need the peer's public key anymore. Free it. */
-    mbedtls_pk_free( peer_pk );
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    return( 0 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) ||                       \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||                     \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
-static int ssl_parse_signature_algorithm( mbedtls_ssl_context *ssl,
-                                          unsigned char **p,
-                                          unsigned char *end,
-                                          mbedtls_md_type_t *md_alg,
-                                          mbedtls_pk_type_t *pk_alg )
-{
-    ((void) ssl);
-    *md_alg = MBEDTLS_MD_NONE;
-    *pk_alg = MBEDTLS_PK_NONE;
-
-    /* Only in TLS 1.2 */
-    if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        return( 0 );
-    }
-
-    if( (*p) + 2 > end )
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-
-    /*
-     * Get hash algorithm
-     */
-    if( ( *md_alg = mbedtls_ssl_md_alg_from_hash( (*p)[0] ) ) == MBEDTLS_MD_NONE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Server used unsupported "
-                            "HashAlgorithm %d", *(p)[0] ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-    }
-
-    /*
-     * Get signature algorithm
-     */
-    if( ( *pk_alg = mbedtls_ssl_pk_alg_from_sig( (*p)[1] ) ) == MBEDTLS_PK_NONE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "server used unsupported "
-                            "SignatureAlgorithm %d", (*p)[1] ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-    }
-
-    /*
-     * Check if the hash is acceptable
-     */
-    if( mbedtls_ssl_check_sig_hash( ssl, *md_alg ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "server used HashAlgorithm %d that was not offered",
-                                    *(p)[0] ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "Server used SignatureAlgorithm %d", (*p)[1] ) );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "Server used HashAlgorithm %d", (*p)[0] ) );
-    *p += 2;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    const mbedtls_ecp_keypair *peer_key;
-    mbedtls_pk_context * peer_pk;
-
-#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    peer_pk = &ssl->handshake->peer_pubkey;
-#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( ssl->session_negotiate->peer_cert == NULL )
-    {
-        /* Should never happen */
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-    peer_pk = &ssl->session_negotiate->peer_cert->pk;
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-    if( ! mbedtls_pk_can_do( peer_pk, MBEDTLS_PK_ECKEY ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) );
-        return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
-    }
-
-    peer_key = mbedtls_pk_ec( *peer_pk );
-
-    if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx, peer_key,
-                                 MBEDTLS_ECDH_THEIRS ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret );
-        return( ret );
-    }
-
-    if( ssl_check_server_ecdh_params( ssl ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server certificate (ECDH curve)" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
-    }
-
-#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    /* We don't need the peer's public key anymore. Free it,
-     * so that more RAM is available for upcoming expensive
-     * operations like ECDHE. */
-    mbedtls_pk_free( peer_pk );
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-    return( ret );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||
-          MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
-
-static int ssl_parse_server_key_exchange( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-    unsigned char *p = NULL, *end = NULL;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server key exchange" ) );
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse server key exchange" ) );
-        ssl->state++;
-        return( 0 );
-    }
-    ((void) p);
-    ((void) end);
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA )
-    {
-        if( ( ret = ssl_get_ecdh_params_from_cert( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_ecdh_params_from_cert", ret );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-            return( ret );
-        }
-
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse server key exchange" ) );
-        ssl->state++;
-        return( 0 );
-    }
-    ((void) p);
-    ((void) end);
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    if( ssl->handshake->ecrs_enabled &&
-        ssl->handshake->ecrs_state == ssl_ecrs_ske_start_processing )
-    {
-        goto start_processing;
-    }
-#endif
-
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-        return( ret );
-    }
-
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-    }
-
-    /*
-     * ServerKeyExchange may be skipped with PSK and RSA-PSK when the server
-     * doesn't use a psk_identity_hint
-     */
-    if( ssl->in_msg[0] != MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE )
-    {
-        if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
-            ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
-        {
-            /* Current message is probably either
-             * CertificateRequest or ServerHelloDone */
-            ssl->keep_current_message = 1;
-            goto exit;
-        }
-
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key exchange message must "
-                                    "not be skipped" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-    }
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    if( ssl->handshake->ecrs_enabled )
-        ssl->handshake->ecrs_state = ssl_ecrs_ske_start_processing;
-
-start_processing:
-#endif
-    p   = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
-    end = ssl->in_msg + ssl->in_hslen;
-    MBEDTLS_SSL_DEBUG_BUF( 3,   "server key exchange", p, end - p );
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
-    {
-        if( ssl_parse_server_psk_hint( ssl, &p, end ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-        }
-    } /* FALLTROUGH */
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) ||                       \
-    defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
-        ; /* nothing more to do */
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) ||                       \
-    defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK )
-    {
-        if( ssl_parse_server_dh_params( ssl, &p, end ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-#if defined(MBEDTLS_USE_PSA_CRYPTO) &&                           \
-        ( defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||     \
-          defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) )
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA )
-    {
-        if( ssl_parse_server_ecdh_params_psa( ssl, &p, end ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-        }
-    }
-    else
-#endif /* MBEDTLS_USE_PSA_CRYPTO &&
-            ( MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
-              MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ) */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||                     \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) ||                     \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA )
-    {
-        if( ssl_parse_server_ecdh_params( ssl, &p, end ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
-    {
-        ret = mbedtls_ecjpake_read_round_two( &ssl->handshake->ecjpake_ctx,
-                                              p, end - p );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_two", ret );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
-    if( mbedtls_ssl_ciphersuite_uses_server_signature( ciphersuite_info ) )
-    {
-        size_t sig_len, hashlen;
-        unsigned char hash[64];
-        mbedtls_md_type_t md_alg = MBEDTLS_MD_NONE;
-        mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE;
-        unsigned char *params = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
-        size_t params_len = p - params;
-        void *rs_ctx = NULL;
-
-        mbedtls_pk_context * peer_pk;
-
-        /*
-         * Handle the digitally-signed structure
-         */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-        {
-            if( ssl_parse_signature_algorithm( ssl, &p, end,
-                                               &md_alg, &pk_alg ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-                return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-            }
-
-            if( pk_alg != mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ) )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-                return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-            }
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-        if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 )
-        {
-            pk_alg = mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info );
-
-            /* Default hash for ECDSA is SHA-1 */
-            if( pk_alg == MBEDTLS_PK_ECDSA && md_alg == MBEDTLS_MD_NONE )
-                md_alg = MBEDTLS_MD_SHA1;
-        }
-        else
-#endif
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        /*
-         * Read signature
-         */
-
-        if( p > end - 2 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-        }
-        sig_len = ( p[0] << 8 ) | p[1];
-        p += 2;
-
-        if( p != end - sig_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-        }
-
-        MBEDTLS_SSL_DEBUG_BUF( 3, "signature", p, sig_len );
-
-        /*
-         * Compute the hash that has been signed
-         */
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-        if( md_alg == MBEDTLS_MD_NONE )
-        {
-            hashlen = 36;
-            ret = mbedtls_ssl_get_key_exchange_md_ssl_tls( ssl, hash, params,
-                                                           params_len );
-            if( ret != 0 )
-                return( ret );
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
-          MBEDTLS_SSL_PROTO_TLS1_1 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        if( md_alg != MBEDTLS_MD_NONE )
-        {
-            ret = mbedtls_ssl_get_key_exchange_md_tls1_2( ssl, hash, &hashlen,
-                                                          params, params_len,
-                                                          md_alg );
-            if( ret != 0 )
-                return( ret );
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
-          MBEDTLS_SSL_PROTO_TLS1_2 */
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        MBEDTLS_SSL_DEBUG_BUF( 3, "parameters hash", hash, hashlen );
-
-#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-        peer_pk = &ssl->handshake->peer_pubkey;
-#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-        if( ssl->session_negotiate->peer_cert == NULL )
-        {
-            /* Should never happen */
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-        peer_pk = &ssl->session_negotiate->peer_cert->pk;
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-        /*
-         * Verify signature
-         */
-        if( !mbedtls_pk_can_do( peer_pk, pk_alg ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-            return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
-        }
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-        if( ssl->handshake->ecrs_enabled )
-            rs_ctx = &ssl->handshake->ecrs_ctx.pk;
-#endif
-
-        if( ( ret = mbedtls_pk_verify_restartable( peer_pk,
-                        md_alg, hash, hashlen, p, sig_len, rs_ctx ) ) != 0 )
-        {
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-            if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
-#endif
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR );
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret );
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-            if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-                ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
-#endif
-            return( ret );
-        }
-
-#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-        /* We don't need the peer's public key anymore. Free it,
-         * so that more RAM is available for upcoming expensive
-         * operations like ECDHE. */
-        mbedtls_pk_free( peer_pk );
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
-
-exit:
-    ssl->state++;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server key exchange" ) );
-
-    return( 0 );
-}
-
-#if ! defined(MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED)
-static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl )
-{
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate request" ) );
-
-    if( ! mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate request" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-}
-#else /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
-static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    unsigned char *buf;
-    size_t n = 0;
-    size_t cert_type_len = 0, dn_len = 0;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate request" ) );
-
-    if( ! mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate request" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-        return( ret );
-    }
-
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-    }
-
-    ssl->state++;
-    ssl->client_auth = ( ssl->in_msg[0] == MBEDTLS_SSL_HS_CERTIFICATE_REQUEST );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "got %s certificate request",
-                        ssl->client_auth ? "a" : "no" ) );
-
-    if( ssl->client_auth == 0 )
-    {
-        /* Current message is probably the ServerHelloDone */
-        ssl->keep_current_message = 1;
-        goto exit;
-    }
-
-    /*
-     *  struct {
-     *      ClientCertificateType certificate_types<1..2^8-1>;
-     *      SignatureAndHashAlgorithm
-     *        supported_signature_algorithms<2^16-1>; -- TLS 1.2 only
-     *      DistinguishedName certificate_authorities<0..2^16-1>;
-     *  } CertificateRequest;
-     *
-     *  Since we only support a single certificate on clients, let's just
-     *  ignore all the information that's supposed to help us pick a
-     *  certificate.
-     *
-     *  We could check that our certificate matches the request, and bail out
-     *  if it doesn't, but it's simpler to just send the certificate anyway,
-     *  and give the server the opportunity to decide if it should terminate
-     *  the connection when it doesn't like our certificate.
-     *
-     *  Same goes for the hash in TLS 1.2's signature_algorithms: at this
-     *  point we only have one hash available (see comments in
-     *  write_certificate_verify), so let's just use what we have.
-     *
-     *  However, we still minimally parse the message to check it is at least
-     *  superficially sane.
-     */
-    buf = ssl->in_msg;
-
-    /* certificate_types */
-    if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
-    }
-    cert_type_len = buf[mbedtls_ssl_hs_hdr_len( ssl )];
-    n = cert_type_len;
-
-    /*
-     * In the subsequent code there are two paths that read from buf:
-     *     * the length of the signature algorithms field (if minor version of
-     *       SSL is 3),
-     *     * distinguished name length otherwise.
-     * Both reach at most the index:
-     *    ...hdr_len + 2 + n,
-     * therefore the buffer length at this point must be greater than that
-     * regardless of the actual code path.
-     */
-    if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
-    }
-
-    /* supported_signature_algorithms */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        size_t sig_alg_len = ( ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 1 + n] <<  8 )
-                             | ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n]       ) );
-#if defined(MBEDTLS_DEBUG_C)
-        unsigned char* sig_alg;
-        size_t i;
-#endif
-
-        /*
-         * The furthest access in buf is in the loop few lines below:
-         *     sig_alg[i + 1],
-         * where:
-         *     sig_alg = buf + ...hdr_len + 3 + n,
-         *     max(i) = sig_alg_len - 1.
-         * Therefore the furthest access is:
-         *     buf[...hdr_len + 3 + n + sig_alg_len - 1 + 1],
-         * which reduces to:
-         *     buf[...hdr_len + 3 + n + sig_alg_len],
-         * which is one less than we need the buf to be.
-         */
-        if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n + sig_alg_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
-        }
-
-#if defined(MBEDTLS_DEBUG_C)
-        sig_alg = buf + mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n;
-        for( i = 0; i < sig_alg_len; i += 2 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "Supported Signature Algorithm found: %d"
-                                        ",%d", sig_alg[i], sig_alg[i + 1]  ) );
-        }
-#endif
-
-        n += 2 + sig_alg_len;
-    }
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-    /* certificate_authorities */
-    dn_len = ( ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 1 + n] <<  8 )
-             | ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n]       ) );
-
-    n += dn_len;
-    if( ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
-    }
-
-exit:
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate request" ) );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
-
-static int ssl_parse_server_hello_done( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server hello done" ) );
-
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-        return( ret );
-    }
-
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-    }
-
-    if( ssl->in_hslen  != mbedtls_ssl_hs_hdr_len( ssl ) ||
-        ssl->in_msg[0] != MBEDTLS_SSL_HS_SERVER_HELLO_DONE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE );
-    }
-
-    ssl->state++;
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        mbedtls_ssl_recv_flight_completed( ssl );
-#endif
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello done" ) );
-
-    return( 0 );
-}
-
-static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    size_t header_len;
-    size_t content_len;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write client key exchange" ) );
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA )
-    {
-        /*
-         * DHM key exchange -- send G^X mod P
-         */
-        content_len = ssl->handshake->dhm_ctx.len;
-
-        ssl->out_msg[4] = (unsigned char)( content_len >> 8 );
-        ssl->out_msg[5] = (unsigned char)( content_len      );
-        header_len = 6;
-
-        ret = mbedtls_dhm_make_public( &ssl->handshake->dhm_ctx,
-                           (int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ),
-                           &ssl->out_msg[header_len], content_len,
-                           ssl->conf->f_rng, ssl->conf->p_rng );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_public", ret );
-            return( ret );
-        }
-
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->handshake->dhm_ctx.X  );
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->handshake->dhm_ctx.GX );
-
-        if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx,
-                                   ssl->handshake->premaster,
-                                   MBEDTLS_PREMASTER_SIZE,
-                                   &ssl->handshake->pmslen,
-                                   ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret );
-            return( ret );
-        }
-
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K  );
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
-#if defined(MBEDTLS_USE_PSA_CRYPTO) &&                           \
-        ( defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||     \
-          defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) )
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA )
-    {
-        psa_status_t status;
-        psa_key_policy_t policy;
-
-        mbedtls_ssl_handshake_params *handshake = ssl->handshake;
-
-        unsigned char own_pubkey[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH];
-        size_t own_pubkey_len;
-        unsigned char *own_pubkey_ecpoint;
-        size_t own_pubkey_ecpoint_len;
-
-        psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
-
-        header_len = 4;
-
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Perform PSA-based ECDH computation." ) );
-
-        /*
-         * Generate EC private key for ECDHE exchange.
-         */
-
-        /* Allocate a new key slot for the private key. */
-
-        status = psa_allocate_key( &handshake->ecdh_psa_privkey );
-        if( status != PSA_SUCCESS )
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-
-        /* The master secret is obtained from the shared ECDH secret by
-         * applying the TLS 1.2 PRF with a specific salt and label. While
-         * the PSA Crypto API encourages combining key agreement schemes
-         * such as ECDH with fixed KDFs such as TLS 1.2 PRF, it does not
-         * yet support the provisioning of salt + label to the KDF.
-         * For the time being, we therefore need to split the computation
-         * of the ECDH secret and the application of the TLS 1.2 PRF. */
-        policy = psa_key_policy_init();
-        psa_key_policy_set_usage( &policy,
-                                  PSA_KEY_USAGE_DERIVE,
-                                  PSA_ALG_ECDH( PSA_ALG_SELECT_RAW ) );
-        status = psa_set_key_policy( handshake->ecdh_psa_privkey, &policy );
-        if( status != PSA_SUCCESS )
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-
-        /* Generate ECDH private key. */
-        status = psa_generate_key( handshake->ecdh_psa_privkey,
-                          PSA_KEY_TYPE_ECC_KEYPAIR( handshake->ecdh_psa_curve ),
-                          MBEDTLS_PSA_ECC_KEY_BITS_OF_CURVE( handshake->ecdh_psa_curve ),
-                          NULL, 0 );
-        if( status != PSA_SUCCESS )
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-
-        /* Export the public part of the ECDH private key from PSA
-         * and convert it to ECPoint format used in ClientKeyExchange. */
-        status = psa_export_public_key( handshake->ecdh_psa_privkey,
-                                        own_pubkey, sizeof( own_pubkey ),
-                                        &own_pubkey_len );
-        if( status != PSA_SUCCESS )
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-
-        if( mbedtls_psa_tls_psa_ec_to_ecpoint( own_pubkey,
-                                               own_pubkey_len,
-                                               &own_pubkey_ecpoint,
-                                               &own_pubkey_ecpoint_len ) != 0 )
-        {
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-
-        /* Copy ECPoint structure to outgoing message buffer. */
-        ssl->out_msg[header_len] = own_pubkey_ecpoint_len;
-        memcpy( ssl->out_msg + header_len + 1,
-                own_pubkey_ecpoint, own_pubkey_ecpoint_len );
-        content_len = own_pubkey_ecpoint_len + 1;
-
-        /* Compute ECDH shared secret. */
-        status = psa_key_agreement( &generator,
-                                    handshake->ecdh_psa_privkey,
-                                    handshake->ecdh_psa_peerkey,
-                                    handshake->ecdh_psa_peerkey_len,
-                                    PSA_ALG_ECDH( PSA_ALG_SELECT_RAW ) );
-        if( status != PSA_SUCCESS )
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-
-        /* The ECDH secret is the premaster secret used for key derivation. */
-
-        ssl->handshake->pmslen =
-            MBEDTLS_PSA_ECC_KEY_BYTES_OF_CURVE( handshake->ecdh_psa_curve );
-
-        status = psa_generator_read( &generator,
-                                     ssl->handshake->premaster,
-                                     ssl->handshake->pmslen );
-        if( status != PSA_SUCCESS )
-        {
-            psa_generator_abort( &generator );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-
-        status = psa_generator_abort( &generator );
-        if( status != PSA_SUCCESS )
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-
-        status = psa_destroy_key( handshake->ecdh_psa_privkey );
-        if( status != PSA_SUCCESS )
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        handshake->ecdh_psa_privkey = 0;
-    }
-    else
-#endif /* MBEDTLS_USE_PSA_CRYPTO &&
-            ( MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
-              MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ) */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||                     \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ||                   \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||                      \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA )
-    {
-        /*
-         * ECDH key exchange -- send client public value
-         */
-        header_len = 4;
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-        if( ssl->handshake->ecrs_enabled )
-        {
-            if( ssl->handshake->ecrs_state == ssl_ecrs_cke_ecdh_calc_secret )
-                goto ecdh_calc_secret;
-
-            mbedtls_ecdh_enable_restart( &ssl->handshake->ecdh_ctx );
-        }
-#endif
-
-        ret = mbedtls_ecdh_make_public( &ssl->handshake->ecdh_ctx,
-                                &content_len,
-                                &ssl->out_msg[header_len], 1000,
-                                ssl->conf->f_rng, ssl->conf->p_rng );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_public", ret );
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-            if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-                ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
-#endif
-            return( ret );
-        }
-
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_Q );
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-        if( ssl->handshake->ecrs_enabled )
-        {
-            ssl->handshake->ecrs_n = content_len;
-            ssl->handshake->ecrs_state = ssl_ecrs_cke_ecdh_calc_secret;
-        }
-
-ecdh_calc_secret:
-        if( ssl->handshake->ecrs_enabled )
-            content_len = ssl->handshake->ecrs_n;
-#endif
-        if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx,
-                                   &ssl->handshake->pmslen,
-                                   ssl->handshake->premaster,
-                                   MBEDTLS_MPI_MAX_SIZE,
-                                   ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret );
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-            if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-                ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
-#endif
-            return( ret );
-        }
-
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_Z );
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    if( mbedtls_ssl_ciphersuite_uses_psk( ciphersuite_info ) )
-    {
-        /*
-         * opaque psk_identity<0..2^16-1>;
-         */
-        if( ssl_conf_has_static_psk( ssl->conf ) == 0 )
-        {
-            /* We don't offer PSK suites if we don't have a PSK,
-             * and we check that the server's choice is among the
-             * ciphersuites we offered, so this should never happen. */
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        header_len = 4;
-        content_len = ssl->conf->psk_identity_len;
-
-        if( header_len + 2 + content_len > MBEDTLS_SSL_OUT_CONTENT_LEN )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "psk identity too long or "
-                                        "SSL buffer too short" ) );
-            return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-        }
-
-        ssl->out_msg[header_len++] = (unsigned char)( content_len >> 8 );
-        ssl->out_msg[header_len++] = (unsigned char)( content_len      );
-
-        memcpy( ssl->out_msg + header_len,
-                ssl->conf->psk_identity,
-                ssl->conf->psk_identity_len );
-        header_len += ssl->conf->psk_identity_len;
-
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-        if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK )
-        {
-            content_len = 0;
-        }
-        else
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-        if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
-        {
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-            /* Opaque PSKs are currently only supported for PSK-only suites. */
-            if( ssl_conf_has_static_raw_psk( ssl->conf ) == 0 )
-                return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-            if( ( ret = ssl_write_encrypted_pms( ssl, header_len,
-                                                 &content_len, 2 ) ) != 0 )
-                return( ret );
-        }
-        else
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-        if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK )
-        {
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-            /* Opaque PSKs are currently only supported for PSK-only suites. */
-            if( ssl_conf_has_static_raw_psk( ssl->conf ) == 0 )
-                return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-            /*
-             * ClientDiffieHellmanPublic public (DHM send G^X mod P)
-             */
-            content_len = ssl->handshake->dhm_ctx.len;
-
-            if( header_len + 2 + content_len >
-                MBEDTLS_SSL_OUT_CONTENT_LEN )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "psk identity or DHM size too long"
-                                            " or SSL buffer too short" ) );
-                return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-            }
-
-            ssl->out_msg[header_len++] = (unsigned char)( content_len >> 8 );
-            ssl->out_msg[header_len++] = (unsigned char)( content_len      );
-
-            ret = mbedtls_dhm_make_public( &ssl->handshake->dhm_ctx,
-                    (int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ),
-                    &ssl->out_msg[header_len], content_len,
-                    ssl->conf->f_rng, ssl->conf->p_rng );
-            if( ret != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_public", ret );
-                return( ret );
-            }
-        }
-        else
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-        if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
-        {
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-            /* Opaque PSKs are currently only supported for PSK-only suites. */
-            if( ssl_conf_has_static_raw_psk( ssl->conf ) == 0 )
-                return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-            /*
-             * ClientECDiffieHellmanPublic public;
-             */
-            ret = mbedtls_ecdh_make_public( &ssl->handshake->ecdh_ctx,
-                    &content_len,
-                    &ssl->out_msg[header_len],
-                    MBEDTLS_SSL_OUT_CONTENT_LEN - header_len,
-                    ssl->conf->f_rng, ssl->conf->p_rng );
-            if( ret != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_public", ret );
-                return( ret );
-            }
-
-            MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                    MBEDTLS_DEBUG_ECDH_Q );
-        }
-        else
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO) &&          \
-    defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-        if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK &&
-            ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 &&
-            ssl_conf_has_static_raw_psk( ssl->conf ) == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "skip PMS generation for opaque PSK" ) );
-        }
-        else
-#endif /* MBEDTLS_USE_PSA_CRYPTO &&
-          MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
-        if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
-                        ciphersuite_info->key_exchange ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
-            return( ret );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA )
-    {
-        header_len = 4;
-        if( ( ret = ssl_write_encrypted_pms( ssl, header_len,
-                                             &content_len, 0 ) ) != 0 )
-            return( ret );
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
-    {
-        header_len = 4;
-
-        ret = mbedtls_ecjpake_write_round_two( &ssl->handshake->ecjpake_ctx,
-                ssl->out_msg + header_len,
-                MBEDTLS_SSL_OUT_CONTENT_LEN - header_len,
-                &content_len,
-                ssl->conf->f_rng, ssl->conf->p_rng );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_write_round_two", ret );
-            return( ret );
-        }
-
-        ret = mbedtls_ecjpake_derive_secret( &ssl->handshake->ecjpake_ctx,
-                ssl->handshake->premaster, 32, &ssl->handshake->pmslen,
-                ssl->conf->f_rng, ssl->conf->p_rng );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_derive_secret", ret );
-            return( ret );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
-    {
-        ((void) ciphersuite_info);
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    ssl->out_msglen  = header_len + content_len;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE;
-
-    ssl->state++;
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write client key exchange" ) );
-
-    return( 0 );
-}
-
-#if !defined(MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED)
-static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
-{
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-    int ret;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate verify" ) );
-
-    if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
-        return( ret );
-    }
-
-    if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-}
-#else /* !MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
-static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
-{
-    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-    size_t n = 0, offset = 0;
-    unsigned char hash[48];
-    unsigned char *hash_start = hash;
-    mbedtls_md_type_t md_alg = MBEDTLS_MD_NONE;
-    unsigned int hashlen;
-    void *rs_ctx = NULL;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate verify" ) );
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    if( ssl->handshake->ecrs_enabled &&
-        ssl->handshake->ecrs_state == ssl_ecrs_crt_vrfy_sign )
-    {
-        goto sign;
-    }
-#endif
-
-    if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
-        return( ret );
-    }
-
-    if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-    if( ssl->client_auth == 0 || mbedtls_ssl_own_cert( ssl ) == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-    if( mbedtls_ssl_own_key( ssl ) == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key for certificate" ) );
-        return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
-    }
-
-    /*
-     * Make a signature of the handshake digests
-     */
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    if( ssl->handshake->ecrs_enabled )
-        ssl->handshake->ecrs_state = ssl_ecrs_crt_vrfy_sign;
-
-sign:
-#endif
-
-    ssl->handshake->calc_verify( ssl, hash );
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        /*
-         * digitally-signed struct {
-         *     opaque md5_hash[16];
-         *     opaque sha_hash[20];
-         * };
-         *
-         * md5_hash
-         *     MD5(handshake_messages);
-         *
-         * sha_hash
-         *     SHA(handshake_messages);
-         */
-        hashlen = 36;
-        md_alg = MBEDTLS_MD_NONE;
-
-        /*
-         * For ECDSA, default hash is SHA-1 only
-         */
-        if( mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_ECDSA ) )
-        {
-            hash_start += 16;
-            hashlen -= 16;
-            md_alg = MBEDTLS_MD_SHA1;
-        }
-    }
-    else
-#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
-          MBEDTLS_SSL_PROTO_TLS1_1 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        /*
-         * digitally-signed struct {
-         *     opaque handshake_messages[handshake_messages_length];
-         * };
-         *
-         * Taking shortcut here. We assume that the server always allows the
-         * PRF Hash function and has sent it in the allowed signature
-         * algorithms list received in the Certificate Request message.
-         *
-         * Until we encounter a server that does not, we will take this
-         * shortcut.
-         *
-         * Reason: Otherwise we should have running hashes for SHA512 and SHA224
-         *         in order to satisfy 'weird' needs from the server side.
-         */
-        if( ssl->transform_negotiate->ciphersuite_info->mac ==
-            MBEDTLS_MD_SHA384 )
-        {
-            md_alg = MBEDTLS_MD_SHA384;
-            ssl->out_msg[4] = MBEDTLS_SSL_HASH_SHA384;
-        }
-        else
-        {
-            md_alg = MBEDTLS_MD_SHA256;
-            ssl->out_msg[4] = MBEDTLS_SSL_HASH_SHA256;
-        }
-        ssl->out_msg[5] = mbedtls_ssl_sig_from_pk( mbedtls_ssl_own_key( ssl ) );
-
-        /* Info from md_alg will be used instead */
-        hashlen = 0;
-        offset = 2;
-    }
-    else
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    if( ssl->handshake->ecrs_enabled )
-        rs_ctx = &ssl->handshake->ecrs_ctx.pk;
-#endif
-
-    if( ( ret = mbedtls_pk_sign_restartable( mbedtls_ssl_own_key( ssl ),
-                         md_alg, hash_start, hashlen,
-                         ssl->out_msg + 6 + offset, &n,
-                         ssl->conf->f_rng, ssl->conf->p_rng, rs_ctx ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_sign", ret );
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-        if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-            ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
-#endif
-        return( ret );
-    }
-
-    ssl->out_msg[4 + offset] = (unsigned char)( n >> 8 );
-    ssl->out_msg[5 + offset] = (unsigned char)( n      );
-
-    ssl->out_msglen  = 6 + n + offset;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_CERTIFICATE_VERIFY;
-
-    ssl->state++;
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate verify" ) );
-
-    return( ret );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-static int ssl_parse_new_session_ticket( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    uint32_t lifetime;
-    size_t ticket_len;
-    unsigned char *ticket;
-    const unsigned char *msg;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse new session ticket" ) );
-
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-        return( ret );
-    }
-
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-    }
-
-    /*
-     * struct {
-     *     uint32 ticket_lifetime_hint;
-     *     opaque ticket<0..2^16-1>;
-     * } NewSessionTicket;
-     *
-     * 0  .  3   ticket_lifetime_hint
-     * 4  .  5   ticket_len (n)
-     * 6  .  5+n ticket content
-     */
-    if( ssl->in_msg[0] != MBEDTLS_SSL_HS_NEW_SESSION_TICKET ||
-        ssl->in_hslen < 6 + mbedtls_ssl_hs_hdr_len( ssl ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET );
-    }
-
-    msg = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
-
-    lifetime = ( ((uint32_t) msg[0]) << 24 ) | ( msg[1] << 16 ) |
-               ( msg[2] << 8 ) | ( msg[3] );
-
-    ticket_len = ( msg[4] << 8 ) | ( msg[5] );
-
-    if( ticket_len + 6 + mbedtls_ssl_hs_hdr_len( ssl ) != ssl->in_hslen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %d", ticket_len ) );
-
-    /* We're not waiting for a NewSessionTicket message any more */
-    ssl->handshake->new_session_ticket = 0;
-    ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC;
-
-    /*
-     * Zero-length ticket means the server changed his mind and doesn't want
-     * to send a ticket after all, so just forget it
-     */
-    if( ticket_len == 0 )
-        return( 0 );
-
-    if( ssl->session != NULL && ssl->session->ticket != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->session->ticket,
-                                  ssl->session->ticket_len );
-        mbedtls_free( ssl->session->ticket );
-        ssl->session->ticket = NULL;
-        ssl->session->ticket_len = 0;
-    }
-
-    mbedtls_platform_zeroize( ssl->session_negotiate->ticket,
-                              ssl->session_negotiate->ticket_len );
-    mbedtls_free( ssl->session_negotiate->ticket );
-    ssl->session_negotiate->ticket = NULL;
-    ssl->session_negotiate->ticket_len = 0;
-
-    if( ( ticket = mbedtls_calloc( 1, ticket_len ) ) == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "ticket alloc failed" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    }
-
-    memcpy( ticket, msg + 6, ticket_len );
-
-    ssl->session_negotiate->ticket = ticket;
-    ssl->session_negotiate->ticket_len = ticket_len;
-    ssl->session_negotiate->ticket_lifetime = lifetime;
-
-    /*
-     * RFC 5077 section 3.4:
-     * "If the client receives a session ticket from the server, then it
-     * discards any Session ID that was sent in the ServerHello."
-     */
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket in use, discarding session id" ) );
-    ssl->session_negotiate->id_len = 0;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse new session ticket" ) );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-/*
- * SSL handshake -- client side -- single step
- */
-int mbedtls_ssl_handshake_client_step( mbedtls_ssl_context *ssl )
-{
-    int ret = 0;
-
-    if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER || ssl->handshake == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "client state: %d", ssl->state ) );
-
-    if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-        return( ret );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING )
-    {
-        if( ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-            return( ret );
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    /* Change state now, so that it is right in mbedtls_ssl_read_record(), used
-     * by DTLS for dropping out-of-sequence ChangeCipherSpec records */
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    if( ssl->state == MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC &&
-        ssl->handshake->new_session_ticket != 0 )
-    {
-        ssl->state = MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET;
-    }
-#endif
-
-    switch( ssl->state )
-    {
-        case MBEDTLS_SSL_HELLO_REQUEST:
-            ssl->state = MBEDTLS_SSL_CLIENT_HELLO;
-            break;
-
-       /*
-        *  ==>   ClientHello
-        */
-       case MBEDTLS_SSL_CLIENT_HELLO:
-           ret = ssl_write_client_hello( ssl );
-           break;
-
-       /*
-        *  <==   ServerHello
-        *        Certificate
-        *      ( ServerKeyExchange  )
-        *      ( CertificateRequest )
-        *        ServerHelloDone
-        */
-       case MBEDTLS_SSL_SERVER_HELLO:
-           ret = ssl_parse_server_hello( ssl );
-           break;
-
-       case MBEDTLS_SSL_SERVER_CERTIFICATE:
-           ret = mbedtls_ssl_parse_certificate( ssl );
-           break;
-
-       case MBEDTLS_SSL_SERVER_KEY_EXCHANGE:
-           ret = ssl_parse_server_key_exchange( ssl );
-           break;
-
-       case MBEDTLS_SSL_CERTIFICATE_REQUEST:
-           ret = ssl_parse_certificate_request( ssl );
-           break;
-
-       case MBEDTLS_SSL_SERVER_HELLO_DONE:
-           ret = ssl_parse_server_hello_done( ssl );
-           break;
-
-       /*
-        *  ==> ( Certificate/Alert  )
-        *        ClientKeyExchange
-        *      ( CertificateVerify  )
-        *        ChangeCipherSpec
-        *        Finished
-        */
-       case MBEDTLS_SSL_CLIENT_CERTIFICATE:
-           ret = mbedtls_ssl_write_certificate( ssl );
-           break;
-
-       case MBEDTLS_SSL_CLIENT_KEY_EXCHANGE:
-           ret = ssl_write_client_key_exchange( ssl );
-           break;
-
-       case MBEDTLS_SSL_CERTIFICATE_VERIFY:
-           ret = ssl_write_certificate_verify( ssl );
-           break;
-
-       case MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC:
-           ret = mbedtls_ssl_write_change_cipher_spec( ssl );
-           break;
-
-       case MBEDTLS_SSL_CLIENT_FINISHED:
-           ret = mbedtls_ssl_write_finished( ssl );
-           break;
-
-       /*
-        *  <==   ( NewSessionTicket )
-        *        ChangeCipherSpec
-        *        Finished
-        */
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-       case MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET:
-           ret = ssl_parse_new_session_ticket( ssl );
-           break;
-#endif
-
-       case MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC:
-           ret = mbedtls_ssl_parse_change_cipher_spec( ssl );
-           break;
-
-       case MBEDTLS_SSL_SERVER_FINISHED:
-           ret = mbedtls_ssl_parse_finished( ssl );
-           break;
-
-       case MBEDTLS_SSL_FLUSH_BUFFERS:
-           MBEDTLS_SSL_DEBUG_MSG( 2, ( "handshake: done" ) );
-           ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
-           break;
-
-       case MBEDTLS_SSL_HANDSHAKE_WRAPUP:
-           mbedtls_ssl_handshake_wrapup( ssl );
-           break;
-
-       default:
-           MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) );
-           return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-   }
-
-    return( ret );
-}
-#endif /* MBEDTLS_SSL_CLI_C */
diff --git a/library/ssl_cookie.c b/library/ssl_cookie.c
deleted file mode 100644
index 56e9bdd..0000000
--- a/library/ssl_cookie.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- *  DTLS cookie callbacks implementation
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- * These session callbacks use a simple chained list
- * to store and retrieve the session information.
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_SSL_COOKIE_C)
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
-
-#include "mbedtls/ssl_cookie.h"
-#include "mbedtls/ssl_internal.h"
-#include "mbedtls/platform_util.h"
-
-#include <string.h>
-
-/*
- * If DTLS is in use, then at least one of SHA-1, SHA-256, SHA-512 is
- * available. Try SHA-256 first, 512 wastes resources since we need to stay
- * with max 32 bytes of cookie for DTLS 1.0
- */
-#if defined(MBEDTLS_SHA256_C)
-#define COOKIE_MD           MBEDTLS_MD_SHA224
-#define COOKIE_MD_OUTLEN    32
-#define COOKIE_HMAC_LEN     28
-#elif defined(MBEDTLS_SHA512_C)
-#define COOKIE_MD           MBEDTLS_MD_SHA384
-#define COOKIE_MD_OUTLEN    48
-#define COOKIE_HMAC_LEN     28
-#elif defined(MBEDTLS_SHA1_C)
-#define COOKIE_MD           MBEDTLS_MD_SHA1
-#define COOKIE_MD_OUTLEN    20
-#define COOKIE_HMAC_LEN     20
-#else
-#error "DTLS hello verify needs SHA-1 or SHA-2"
-#endif
-
-/*
- * Cookies are formed of a 4-bytes timestamp (or serial number) and
- * an HMAC of timestemp and client ID.
- */
-#define COOKIE_LEN      ( 4 + COOKIE_HMAC_LEN )
-
-void mbedtls_ssl_cookie_init( mbedtls_ssl_cookie_ctx *ctx )
-{
-    mbedtls_md_init( &ctx->hmac_ctx );
-#if !defined(MBEDTLS_HAVE_TIME)
-    ctx->serial = 0;
-#endif
-    ctx->timeout = MBEDTLS_SSL_COOKIE_TIMEOUT;
-
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_init( &ctx->mutex );
-#endif
-}
-
-void mbedtls_ssl_cookie_set_timeout( mbedtls_ssl_cookie_ctx *ctx, unsigned long delay )
-{
-    ctx->timeout = delay;
-}
-
-void mbedtls_ssl_cookie_free( mbedtls_ssl_cookie_ctx *ctx )
-{
-    mbedtls_md_free( &ctx->hmac_ctx );
-
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_free( &ctx->mutex );
-#endif
-
-    mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ssl_cookie_ctx ) );
-}
-
-int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx,
-                      int (*f_rng)(void *, unsigned char *, size_t),
-                      void *p_rng )
-{
-    int ret;
-    unsigned char key[COOKIE_MD_OUTLEN];
-
-    if( ( ret = f_rng( p_rng, key, sizeof( key ) ) ) != 0 )
-        return( ret );
-
-    ret = mbedtls_md_setup( &ctx->hmac_ctx, mbedtls_md_info_from_type( COOKIE_MD ), 1 );
-    if( ret != 0 )
-        return( ret );
-
-    ret = mbedtls_md_hmac_starts( &ctx->hmac_ctx, key, sizeof( key ) );
-    if( ret != 0 )
-        return( ret );
-
-    mbedtls_platform_zeroize( key, sizeof( key ) );
-
-    return( 0 );
-}
-
-/*
- * Generate the HMAC part of a cookie
- */
-static int ssl_cookie_hmac( mbedtls_md_context_t *hmac_ctx,
-                            const unsigned char time[4],
-                            unsigned char **p, unsigned char *end,
-                            const unsigned char *cli_id, size_t cli_id_len )
-{
-    unsigned char hmac_out[COOKIE_MD_OUTLEN];
-
-    if( (size_t)( end - *p ) < COOKIE_HMAC_LEN )
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-
-    if( mbedtls_md_hmac_reset(  hmac_ctx ) != 0 ||
-        mbedtls_md_hmac_update( hmac_ctx, time, 4 ) != 0 ||
-        mbedtls_md_hmac_update( hmac_ctx, cli_id, cli_id_len ) != 0 ||
-        mbedtls_md_hmac_finish( hmac_ctx, hmac_out ) != 0 )
-    {
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    memcpy( *p, hmac_out, COOKIE_HMAC_LEN );
-    *p += COOKIE_HMAC_LEN;
-
-    return( 0 );
-}
-
-/*
- * Generate cookie for DTLS ClientHello verification
- */
-int mbedtls_ssl_cookie_write( void *p_ctx,
-                      unsigned char **p, unsigned char *end,
-                      const unsigned char *cli_id, size_t cli_id_len )
-{
-    int ret;
-    mbedtls_ssl_cookie_ctx *ctx = (mbedtls_ssl_cookie_ctx *) p_ctx;
-    unsigned long t;
-
-    if( ctx == NULL || cli_id == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    if( (size_t)( end - *p ) < COOKIE_LEN )
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-
-#if defined(MBEDTLS_HAVE_TIME)
-    t = (unsigned long) mbedtls_time( NULL );
-#else
-    t = ctx->serial++;
-#endif
-
-    (*p)[0] = (unsigned char)( t >> 24 );
-    (*p)[1] = (unsigned char)( t >> 16 );
-    (*p)[2] = (unsigned char)( t >>  8 );
-    (*p)[3] = (unsigned char)( t       );
-    *p += 4;
-
-#if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + ret );
-#endif
-
-    ret = ssl_cookie_hmac( &ctx->hmac_ctx, *p - 4,
-                           p, end, cli_id, cli_id_len );
-
-#if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR +
-                MBEDTLS_ERR_THREADING_MUTEX_ERROR );
-#endif
-
-    return( ret );
-}
-
-/*
- * Check a cookie
- */
-int mbedtls_ssl_cookie_check( void *p_ctx,
-                      const unsigned char *cookie, size_t cookie_len,
-                      const unsigned char *cli_id, size_t cli_id_len )
-{
-    unsigned char ref_hmac[COOKIE_HMAC_LEN];
-    int ret = 0;
-    unsigned char *p = ref_hmac;
-    mbedtls_ssl_cookie_ctx *ctx = (mbedtls_ssl_cookie_ctx *) p_ctx;
-    unsigned long cur_time, cookie_time;
-
-    if( ctx == NULL || cli_id == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    if( cookie_len != COOKIE_LEN )
-        return( -1 );
-
-#if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + ret );
-#endif
-
-    if( ssl_cookie_hmac( &ctx->hmac_ctx, cookie,
-                         &p, p + sizeof( ref_hmac ),
-                         cli_id, cli_id_len ) != 0 )
-        ret = -1;
-
-#if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR +
-                MBEDTLS_ERR_THREADING_MUTEX_ERROR );
-#endif
-
-    if( ret != 0 )
-        return( ret );
-
-    if( mbedtls_ssl_safer_memcmp( cookie + 4, ref_hmac, sizeof( ref_hmac ) ) != 0 )
-        return( -1 );
-
-#if defined(MBEDTLS_HAVE_TIME)
-    cur_time = (unsigned long) mbedtls_time( NULL );
-#else
-    cur_time = ctx->serial;
-#endif
-
-    cookie_time = ( (unsigned long) cookie[0] << 24 ) |
-                  ( (unsigned long) cookie[1] << 16 ) |
-                  ( (unsigned long) cookie[2] <<  8 ) |
-                  ( (unsigned long) cookie[3]       );
-
-    if( ctx->timeout != 0 && cur_time - cookie_time > ctx->timeout )
-        return( -1 );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_COOKIE_C */
diff --git a/library/ssl_srv.c b/library/ssl_srv.c
deleted file mode 100644
index b8e10d6..0000000
--- a/library/ssl_srv.c
+++ /dev/null
@@ -1,4437 +0,0 @@
-/*
- *  SSLv3/TLSv1 server-side functions
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_SSL_SRV_C)
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
-
-#include "mbedtls/debug.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/ssl_internal.h"
-#include "mbedtls/platform_util.h"
-
-#include <string.h>
-
-#if defined(MBEDTLS_ECP_C)
-#include "mbedtls/ecp.h"
-#endif
-
-#if defined(MBEDTLS_HAVE_TIME)
-#include "mbedtls/platform_time.h"
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-int mbedtls_ssl_set_client_transport_id( mbedtls_ssl_context *ssl,
-                                 const unsigned char *info,
-                                 size_t ilen )
-{
-    if( ssl->conf->endpoint != MBEDTLS_SSL_IS_SERVER )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    mbedtls_free( ssl->cli_id );
-
-    if( ( ssl->cli_id = mbedtls_calloc( 1, ilen ) ) == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-
-    memcpy( ssl->cli_id, info, ilen );
-    ssl->cli_id_len = ilen;
-
-    return( 0 );
-}
-
-void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *conf,
-                           mbedtls_ssl_cookie_write_t *f_cookie_write,
-                           mbedtls_ssl_cookie_check_t *f_cookie_check,
-                           void *p_cookie )
-{
-    conf->f_cookie_write = f_cookie_write;
-    conf->f_cookie_check = f_cookie_check;
-    conf->p_cookie       = p_cookie;
-}
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-static int ssl_parse_servername_ext( mbedtls_ssl_context *ssl,
-                                     const unsigned char *buf,
-                                     size_t len )
-{
-    int ret;
-    size_t servername_list_size, hostname_len;
-    const unsigned char *p;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "parse ServerName extension" ) );
-
-    if( len < 2 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-    servername_list_size = ( ( buf[0] << 8 ) | ( buf[1] ) );
-    if( servername_list_size + 2 != len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    p = buf + 2;
-    while( servername_list_size > 2 )
-    {
-        hostname_len = ( ( p[1] << 8 ) | p[2] );
-        if( hostname_len + 3 > servername_list_size )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-        }
-
-        if( p[0] == MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME )
-        {
-            ret = ssl->conf->f_sni( ssl->conf->p_sni,
-                                    ssl, p + 3, hostname_len );
-            if( ret != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "ssl_sni_wrapper", ret );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                        MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-            return( 0 );
-        }
-
-        servername_list_size -= hostname_len + 3;
-        p += hostname_len + 3;
-    }
-
-    if( servername_list_size != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-static int ssl_conf_has_psk_or_cb( mbedtls_ssl_config const *conf )
-{
-    if( conf->f_psk != NULL )
-        return( 1 );
-
-    if( conf->psk_identity_len == 0 || conf->psk_identity == NULL )
-        return( 0 );
-
-    if( conf->psk != NULL && conf->psk_len != 0 )
-        return( 1 );
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( conf->psk_opaque != 0 )
-        return( 1 );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl )
-{
-    if( ssl->conf->f_psk != NULL )
-    {
-        /* If we've used a callback to select the PSK,
-         * the static configuration is irrelevant. */
-
-        if( ssl->handshake->psk_opaque != 0 )
-            return( 1 );
-
-        return( 0 );
-    }
-
-    if( ssl->conf->psk_opaque != 0 )
-        return( 1 );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
-                                         const unsigned char *buf,
-                                         size_t len )
-{
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
-    {
-        /* Check verify-data in constant-time. The length OTOH is no secret */
-        if( len    != 1 + ssl->verify_data_len ||
-            buf[0] !=     ssl->verify_data_len ||
-            mbedtls_ssl_safer_memcmp( buf + 1, ssl->peer_verify_data,
-                          ssl->verify_data_len ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-        }
-    }
-    else
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-    {
-        if( len != 1 || buf[0] != 0x0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-        }
-
-        ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
-    }
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-
-/*
- * Status of the implementation of signature-algorithms extension:
- *
- * Currently, we are only considering the signature-algorithm extension
- * to pick a ciphersuite which allows us to send the ServerKeyExchange
- * message with a signature-hash combination that the user allows.
- *
- * We do *not* check whether all certificates in our certificate
- * chain are signed with an allowed signature-hash pair.
- * This needs to be done at a later stage.
- *
- */
-static int ssl_parse_signature_algorithms_ext( mbedtls_ssl_context *ssl,
-                                               const unsigned char *buf,
-                                               size_t len )
-{
-    size_t sig_alg_list_size;
-
-    const unsigned char *p;
-    const unsigned char *end = buf + len;
-
-    mbedtls_md_type_t md_cur;
-    mbedtls_pk_type_t sig_cur;
-
-    if ( len < 2 ) {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-    sig_alg_list_size = ( ( buf[0] << 8 ) | ( buf[1] ) );
-    if( sig_alg_list_size + 2 != len ||
-        sig_alg_list_size % 2 != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    /* Currently we only guarantee signing the ServerKeyExchange message according
-     * to the constraints specified in this extension (see above), so it suffices
-     * to remember only one suitable hash for each possible signature algorithm.
-     *
-     * This will change when we also consider certificate signatures,
-     * in which case we will need to remember the whole signature-hash
-     * pair list from the extension.
-     */
-
-    for( p = buf + 2; p < end; p += 2 )
-    {
-        /* Silently ignore unknown signature or hash algorithms. */
-
-        if( ( sig_cur = mbedtls_ssl_pk_alg_from_sig( p[1] ) ) == MBEDTLS_PK_NONE )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext"
-                                        " unknown sig alg encoding %d", p[1] ) );
-            continue;
-        }
-
-        /* Check if we support the hash the user proposes */
-        md_cur = mbedtls_ssl_md_alg_from_hash( p[0] );
-        if( md_cur == MBEDTLS_MD_NONE )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext:"
-                                        " unknown hash alg encoding %d", p[0] ) );
-            continue;
-        }
-
-        if( mbedtls_ssl_check_sig_hash( ssl, md_cur ) == 0 )
-        {
-            mbedtls_ssl_sig_hash_set_add( &ssl->handshake->hash_algs, sig_cur, md_cur );
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext:"
-                                        " match sig %d and hash %d",
-                                        sig_cur, md_cur ) );
-        }
-        else
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext: "
-                                        "hash alg %d not supported", md_cur ) );
-        }
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
-          MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-static int ssl_parse_supported_elliptic_curves( mbedtls_ssl_context *ssl,
-                                                const unsigned char *buf,
-                                                size_t len )
-{
-    size_t list_size, our_size;
-    const unsigned char *p;
-    const mbedtls_ecp_curve_info *curve_info, **curves;
-
-    if ( len < 2 ) {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-    list_size = ( ( buf[0] << 8 ) | ( buf[1] ) );
-    if( list_size + 2 != len ||
-        list_size % 2 != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    /* Should never happen unless client duplicates the extension */
-    if( ssl->handshake->curves != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    /* Don't allow our peer to make us allocate too much memory,
-     * and leave room for a final 0 */
-    our_size = list_size / 2 + 1;
-    if( our_size > MBEDTLS_ECP_DP_MAX )
-        our_size = MBEDTLS_ECP_DP_MAX;
-
-    if( ( curves = mbedtls_calloc( our_size, sizeof( *curves ) ) ) == NULL )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    }
-
-    ssl->handshake->curves = curves;
-
-    p = buf + 2;
-    while( list_size > 0 && our_size > 1 )
-    {
-        curve_info = mbedtls_ecp_curve_info_from_tls_id( ( p[0] << 8 ) | p[1] );
-
-        if( curve_info != NULL )
-        {
-            *curves++ = curve_info;
-            our_size--;
-        }
-
-        list_size -= 2;
-        p += 2;
-    }
-
-    return( 0 );
-}
-
-static int ssl_parse_supported_point_formats( mbedtls_ssl_context *ssl,
-                                              const unsigned char *buf,
-                                              size_t len )
-{
-    size_t list_size;
-    const unsigned char *p;
-
-    if( len == 0 || (size_t)( buf[0] + 1 ) != len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-    list_size = buf[0];
-
-    p = buf + 1;
-    while( list_size > 0 )
-    {
-        if( p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED ||
-            p[0] == MBEDTLS_ECP_PF_COMPRESSED )
-        {
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C)
-            ssl->handshake->ecdh_ctx.point_format = p[0];
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-            ssl->handshake->ecjpake_ctx.point_format = p[0];
-#endif
-            MBEDTLS_SSL_DEBUG_MSG( 4, ( "point format selected: %d", p[0] ) );
-            return( 0 );
-        }
-
-        list_size--;
-        p++;
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
-          MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl,
-                                   const unsigned char *buf,
-                                   size_t len )
-{
-    int ret;
-
-    if( mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip ecjpake kkpp extension" ) );
-        return( 0 );
-    }
-
-    if( ( ret = mbedtls_ecjpake_read_round_one( &ssl->handshake->ecjpake_ctx,
-                                                buf, len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( ret );
-    }
-
-    /* Only mark the extension as OK when we're sure it is */
-    ssl->handshake->cli_exts |= MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl,
-                                              const unsigned char *buf,
-                                              size_t len )
-{
-    if( len != 1 || buf[0] >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    ssl->session_negotiate->mfl_code = buf[0];
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl,
-                                         const unsigned char *buf,
-                                         size_t len )
-{
-    if( len != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    ((void) buf);
-
-    if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED )
-        ssl->session_negotiate->trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
-                                      const unsigned char *buf,
-                                      size_t len )
-{
-    if( len != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    ((void) buf);
-
-    if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED &&
-        ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED;
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
-                                      const unsigned char *buf,
-                                      size_t len )
-{
-    if( len != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    ((void) buf);
-
-    if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED &&
-        ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl,
-                                         unsigned char *buf,
-                                         size_t len )
-{
-    int ret;
-    mbedtls_ssl_session session;
-
-    mbedtls_ssl_session_init( &session );
-
-    if( ssl->conf->f_ticket_parse == NULL ||
-        ssl->conf->f_ticket_write == NULL )
-    {
-        return( 0 );
-    }
-
-    /* Remember the client asked us to send a new ticket */
-    ssl->handshake->new_session_ticket = 1;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %d", len ) );
-
-    if( len == 0 )
-        return( 0 );
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket rejected: renegotiating" ) );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-    /*
-     * Failures are ok: just ignore the ticket and proceed.
-     */
-    if( ( ret = ssl->conf->f_ticket_parse( ssl->conf->p_ticket, &session,
-                                           buf, len ) ) != 0 )
-    {
-        mbedtls_ssl_session_free( &session );
-
-        if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket is not authentic" ) );
-        else if( ret == MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED )
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket is expired" ) );
-        else
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_ticket_parse", ret );
-
-        return( 0 );
-    }
-
-    /*
-     * Keep the session ID sent by the client, since we MUST send it back to
-     * inform them we're accepting the ticket  (RFC 5077 section 3.4)
-     */
-    session.id_len = ssl->session_negotiate->id_len;
-    memcpy( &session.id, ssl->session_negotiate->id, session.id_len );
-
-    mbedtls_ssl_session_free( ssl->session_negotiate );
-    memcpy( ssl->session_negotiate, &session, sizeof( mbedtls_ssl_session ) );
-
-    /* Zeroize instead of free as we copied the content */
-    mbedtls_platform_zeroize( &session, sizeof( mbedtls_ssl_session ) );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "session successfully restored from ticket" ) );
-
-    ssl->handshake->resume = 1;
-
-    /* Don't send a new ticket after all, this one is OK */
-    ssl->handshake->new_session_ticket = 0;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-#if defined(MBEDTLS_SSL_ALPN)
-static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl,
-                               const unsigned char *buf, size_t len )
-{
-    size_t list_len, cur_len, ours_len;
-    const unsigned char *theirs, *start, *end;
-    const char **ours;
-
-    /* If ALPN not configured, just ignore the extension */
-    if( ssl->conf->alpn_list == NULL )
-        return( 0 );
-
-    /*
-     * opaque ProtocolName<1..2^8-1>;
-     *
-     * struct {
-     *     ProtocolName protocol_name_list<2..2^16-1>
-     * } ProtocolNameList;
-     */
-
-    /* Min length is 2 (list_len) + 1 (name_len) + 1 (name) */
-    if( len < 4 )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    list_len = ( buf[0] << 8 ) | buf[1];
-    if( list_len != len - 2 )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    /*
-     * Validate peer's list (lengths)
-     */
-    start = buf + 2;
-    end = buf + len;
-    for( theirs = start; theirs != end; theirs += cur_len )
-    {
-        cur_len = *theirs++;
-
-        /* Current identifier must fit in list */
-        if( cur_len > (size_t)( end - theirs ) )
-        {
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-        }
-
-        /* Empty strings MUST NOT be included */
-        if( cur_len == 0 )
-        {
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-        }
-    }
-
-    /*
-     * Use our order of preference
-     */
-    for( ours = ssl->conf->alpn_list; *ours != NULL; ours++ )
-    {
-        ours_len = strlen( *ours );
-        for( theirs = start; theirs != end; theirs += cur_len )
-        {
-            cur_len = *theirs++;
-
-            if( cur_len == ours_len &&
-                memcmp( theirs, *ours, cur_len ) == 0 )
-            {
-                ssl->alpn_chosen = *ours;
-                return( 0 );
-            }
-        }
-    }
-
-    /* If we get there, no match was found */
-    mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                            MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL );
-    return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-}
-#endif /* MBEDTLS_SSL_ALPN */
-
-/*
- * Auxiliary functions for ServerHello parsing and related actions
- */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/*
- * Return 0 if the given key uses one of the acceptable curves, -1 otherwise
- */
-#if defined(MBEDTLS_ECDSA_C)
-static int ssl_check_key_curve( mbedtls_pk_context *pk,
-                                const mbedtls_ecp_curve_info **curves )
-{
-    const mbedtls_ecp_curve_info **crv = curves;
-    mbedtls_ecp_group_id grp_id = mbedtls_pk_ec( *pk )->grp.id;
-
-    while( *crv != NULL )
-    {
-        if( (*crv)->grp_id == grp_id )
-            return( 0 );
-        crv++;
-    }
-
-    return( -1 );
-}
-#endif /* MBEDTLS_ECDSA_C */
-
-/*
- * Try picking a certificate for this ciphersuite,
- * return 0 on success and -1 on failure.
- */
-static int ssl_pick_cert( mbedtls_ssl_context *ssl,
-                          const mbedtls_ssl_ciphersuite_t * ciphersuite_info )
-{
-    mbedtls_ssl_key_cert *cur, *list, *fallback = NULL;
-    mbedtls_pk_type_t pk_alg =
-        mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info );
-    uint32_t flags;
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    if( ssl->handshake->sni_key_cert != NULL )
-        list = ssl->handshake->sni_key_cert;
-    else
-#endif
-        list = ssl->conf->key_cert;
-
-    if( pk_alg == MBEDTLS_PK_NONE )
-        return( 0 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite requires certificate" ) );
-
-    if( list == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "server has no certificate" ) );
-        return( -1 );
-    }
-
-    for( cur = list; cur != NULL; cur = cur->next )
-    {
-        MBEDTLS_SSL_DEBUG_CRT( 3, "candidate certificate chain, certificate",
-                          cur->cert );
-
-        if( ! mbedtls_pk_can_do( &cur->cert->pk, pk_alg ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: key type" ) );
-            continue;
-        }
-
-        /*
-         * This avoids sending the client a cert it'll reject based on
-         * keyUsage or other extensions.
-         *
-         * It also allows the user to provision different certificates for
-         * different uses based on keyUsage, eg if they want to avoid signing
-         * and decrypting with the same RSA key.
-         */
-        if( mbedtls_ssl_check_cert_usage( cur->cert, ciphersuite_info,
-                                  MBEDTLS_SSL_IS_SERVER, &flags ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: "
-                                "(extended) key usage extension" ) );
-            continue;
-        }
-
-#if defined(MBEDTLS_ECDSA_C)
-        if( pk_alg == MBEDTLS_PK_ECDSA &&
-            ssl_check_key_curve( &cur->cert->pk, ssl->handshake->curves ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: elliptic curve" ) );
-            continue;
-        }
-#endif
-
-        /*
-         * Try to select a SHA-1 certificate for pre-1.2 clients, but still
-         * present them a SHA-higher cert rather than failing if it's the only
-         * one we got that satisfies the other conditions.
-         */
-        if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 &&
-            cur->cert->sig_md != MBEDTLS_MD_SHA1 )
-        {
-            if( fallback == NULL )
-                fallback = cur;
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate not preferred: "
-                                    "sha-2 with pre-TLS 1.2 client" ) );
-            continue;
-            }
-        }
-
-        /* If we get there, we got a winner */
-        break;
-    }
-
-    if( cur == NULL )
-        cur = fallback;
-
-    /* Do not update ssl->handshake->key_cert unless there is a match */
-    if( cur != NULL )
-    {
-        ssl->handshake->key_cert = cur;
-        MBEDTLS_SSL_DEBUG_CRT( 3, "selected certificate chain, certificate",
-                          ssl->handshake->key_cert->cert );
-        return( 0 );
-    }
-
-    return( -1 );
-}
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-/*
- * Check if a given ciphersuite is suitable for use with our config/keys/etc
- * Sets ciphersuite_info only if the suite matches.
- */
-static int ssl_ciphersuite_match( mbedtls_ssl_context *ssl, int suite_id,
-                                  const mbedtls_ssl_ciphersuite_t **ciphersuite_info )
-{
-    const mbedtls_ssl_ciphersuite_t *suite_info;
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-    mbedtls_pk_type_t sig_type;
-#endif
-
-    suite_info = mbedtls_ssl_ciphersuite_from_id( suite_id );
-    if( suite_info == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "trying ciphersuite: %s", suite_info->name ) );
-
-    if( suite_info->min_minor_ver > ssl->minor_ver ||
-        suite_info->max_minor_ver < ssl->minor_ver )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: version" ) );
-        return( 0 );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ( suite_info->flags & MBEDTLS_CIPHERSUITE_NODTLS ) )
-        return( 0 );
-#endif
-
-#if defined(MBEDTLS_ARC4_C)
-    if( ssl->conf->arc4_disabled == MBEDTLS_SSL_ARC4_DISABLED &&
-            suite_info->cipher == MBEDTLS_CIPHER_ARC4_128 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: rc4" ) );
-        return( 0 );
-    }
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE &&
-        ( ssl->handshake->cli_exts & MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK ) == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: ecjpake "
-                                    "not configured or ext missing" ) );
-        return( 0 );
-    }
-#endif
-
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C)
-    if( mbedtls_ssl_ciphersuite_uses_ec( suite_info ) &&
-        ( ssl->handshake->curves == NULL ||
-          ssl->handshake->curves[0] == NULL ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: "
-                            "no common elliptic curve" ) );
-        return( 0 );
-    }
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    /* If the ciphersuite requires a pre-shared key and we don't
-     * have one, skip it now rather than failing later */
-    if( mbedtls_ssl_ciphersuite_uses_psk( suite_info ) &&
-        ssl_conf_has_psk_or_cb( ssl->conf ) == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: no pre-shared key" ) );
-        return( 0 );
-    }
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-    /* If the ciphersuite requires signing, check whether
-     * a suitable hash algorithm is present. */
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        sig_type = mbedtls_ssl_get_ciphersuite_sig_alg( suite_info );
-        if( sig_type != MBEDTLS_PK_NONE &&
-            mbedtls_ssl_sig_hash_set_find( &ssl->handshake->hash_algs, sig_type ) == MBEDTLS_MD_NONE )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: no suitable hash algorithm "
-                                        "for signature algorithm %d", sig_type ) );
-            return( 0 );
-        }
-    }
-
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
-          MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    /*
-     * Final check: if ciphersuite requires us to have a
-     * certificate/key of a particular type:
-     * - select the appropriate certificate if we have one, or
-     * - try the next ciphersuite if we don't
-     * This must be done last since we modify the key_cert list.
-     */
-    if( ssl_pick_cert( ssl, suite_info ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: "
-                            "no suitable certificate" ) );
-        return( 0 );
-    }
-#endif
-
-    *ciphersuite_info = suite_info;
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
-static int ssl_parse_client_hello_v2( mbedtls_ssl_context *ssl )
-{
-    int ret, got_common_suite;
-    unsigned int i, j;
-    size_t n;
-    unsigned int ciph_len, sess_len, chal_len;
-    unsigned char *buf, *p;
-    const int *ciphersuites;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client hello v2" ) );
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "client hello v2 illegal for renegotiation" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-    buf = ssl->in_hdr;
-
-    MBEDTLS_SSL_DEBUG_BUF( 4, "record header", buf, 5 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, message type: %d",
-                   buf[2] ) );
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, message len.: %d",
-                   ( ( buf[0] & 0x7F ) << 8 ) | buf[1] ) );
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, max. version: [%d:%d]",
-                   buf[3], buf[4] ) );
-
-    /*
-     * SSLv2 Client Hello
-     *
-     * Record layer:
-     *     0  .   1   message length
-     *
-     * SSL layer:
-     *     2  .   2   message type
-     *     3  .   4   protocol version
-     */
-    if( buf[2] != MBEDTLS_SSL_HS_CLIENT_HELLO ||
-        buf[3] != MBEDTLS_SSL_MAJOR_VERSION_3 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    n = ( ( buf[0] << 8 ) | buf[1] ) & 0x7FFF;
-
-    if( n < 17 || n > 512 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    ssl->major_ver = MBEDTLS_SSL_MAJOR_VERSION_3;
-    ssl->minor_ver = ( buf[4] <= ssl->conf->max_minor_ver )
-                     ? buf[4]  : ssl->conf->max_minor_ver;
-
-    if( ssl->minor_ver < ssl->conf->min_minor_ver )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "client only supports ssl smaller than minimum"
-                            " [%d:%d] < [%d:%d]",
-                            ssl->major_ver, ssl->minor_ver,
-                            ssl->conf->min_major_ver, ssl->conf->min_minor_ver ) );
-
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
-        return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
-    }
-
-    ssl->handshake->max_major_ver = buf[3];
-    ssl->handshake->max_minor_ver = buf[4];
-
-    if( ( ret = mbedtls_ssl_fetch_input( ssl, 2 + n ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
-        return( ret );
-    }
-
-    ssl->handshake->update_checksum( ssl, buf + 2, n );
-
-    buf = ssl->in_msg;
-    n = ssl->in_left - 5;
-
-    /*
-     *    0  .   1   ciphersuitelist length
-     *    2  .   3   session id length
-     *    4  .   5   challenge length
-     *    6  .  ..   ciphersuitelist
-     *   ..  .  ..   session id
-     *   ..  .  ..   challenge
-     */
-    MBEDTLS_SSL_DEBUG_BUF( 4, "record contents", buf, n );
-
-    ciph_len = ( buf[0] << 8 ) | buf[1];
-    sess_len = ( buf[2] << 8 ) | buf[3];
-    chal_len = ( buf[4] << 8 ) | buf[5];
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciph_len: %d, sess_len: %d, chal_len: %d",
-                   ciph_len, sess_len, chal_len ) );
-
-    /*
-     * Make sure each parameter length is valid
-     */
-    if( ciph_len < 3 || ( ciph_len % 3 ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    if( sess_len > 32 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    if( chal_len < 8 || chal_len > 32 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    if( n != 6 + ciph_len + sess_len + chal_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist",
-                   buf + 6, ciph_len );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id",
-                   buf + 6 + ciph_len, sess_len );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, challenge",
-                   buf + 6 + ciph_len + sess_len, chal_len );
-
-    p = buf + 6 + ciph_len;
-    ssl->session_negotiate->id_len = sess_len;
-    memset( ssl->session_negotiate->id, 0,
-            sizeof( ssl->session_negotiate->id ) );
-    memcpy( ssl->session_negotiate->id, p, ssl->session_negotiate->id_len );
-
-    p += sess_len;
-    memset( ssl->handshake->randbytes, 0, 64 );
-    memcpy( ssl->handshake->randbytes + 32 - chal_len, p, chal_len );
-
-    /*
-     * Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV
-     */
-    for( i = 0, p = buf + 6; i < ciph_len; i += 3, p += 3 )
-    {
-        if( p[0] == 0 && p[1] == 0 && p[2] == MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "received TLS_EMPTY_RENEGOTIATION_INFO " ) );
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-            if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV "
-                                    "during renegotiation" ) );
-
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-            ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
-            break;
-        }
-    }
-
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
-    for( i = 0, p = buf + 6; i < ciph_len; i += 3, p += 3 )
-    {
-        if( p[0] == 0 &&
-            p[1] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ) & 0xff ) &&
-            p[2] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE      ) & 0xff ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "received FALLBACK_SCSV" ) );
-
-            if( ssl->minor_ver < ssl->conf->max_minor_ver )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "inapropriate fallback" ) );
-
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK );
-
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-
-            break;
-        }
-    }
-#endif /* MBEDTLS_SSL_FALLBACK_SCSV */
-
-    got_common_suite = 0;
-    ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver];
-    ciphersuite_info = NULL;
-#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
-    for( j = 0, p = buf + 6; j < ciph_len; j += 3, p += 3 )
-        for( i = 0; ciphersuites[i] != 0; i++ )
-#else
-    for( i = 0; ciphersuites[i] != 0; i++ )
-        for( j = 0, p = buf + 6; j < ciph_len; j += 3, p += 3 )
-#endif
-        {
-            if( p[0] != 0 ||
-                p[1] != ( ( ciphersuites[i] >> 8 ) & 0xFF ) ||
-                p[2] != ( ( ciphersuites[i]      ) & 0xFF ) )
-                continue;
-
-            got_common_suite = 1;
-
-            if( ( ret = ssl_ciphersuite_match( ssl, ciphersuites[i],
-                                               &ciphersuite_info ) ) != 0 )
-                return( ret );
-
-            if( ciphersuite_info != NULL )
-                goto have_ciphersuite_v2;
-        }
-
-    if( got_common_suite )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got ciphersuites in common, "
-                            "but none of them usable" ) );
-        return( MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE );
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) );
-        return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN );
-    }
-
-have_ciphersuite_v2:
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "selected ciphersuite: %s", ciphersuite_info->name ) );
-
-    ssl->session_negotiate->ciphersuite = ciphersuites[i];
-    ssl->transform_negotiate->ciphersuite_info = ciphersuite_info;
-
-    /*
-     * SSLv2 Client Hello relevant renegotiation security checks
-     */
-    if( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
-        ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    ssl->in_left = 0;
-    ssl->state++;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client hello v2" ) );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */
-
-/* This function doesn't alert on errors that happen early during
-   ClientHello parsing because they might indicate that the client is
-   not talking SSL/TLS at all and would not understand our alert. */
-static int ssl_parse_client_hello( mbedtls_ssl_context *ssl )
-{
-    int ret, got_common_suite;
-    size_t i, j;
-    size_t ciph_offset, comp_offset, ext_offset;
-    size_t msg_len, ciph_len, sess_len, comp_len, ext_len;
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    size_t cookie_offset, cookie_len;
-#endif
-    unsigned char *buf, *p, *ext;
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    int renegotiation_info_seen = 0;
-#endif
-    int handshake_failure = 0;
-    const int *ciphersuites;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
-    int major, minor;
-
-    /* If there is no signature-algorithm extension present,
-     * we need to fall back to the default values for allowed
-     * signature-hash pairs. */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-    int sig_hash_alg_ext_present = 0;
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
-          MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client hello" ) );
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-read_record_header:
-#endif
-    /*
-     * If renegotiating, then the input was read with mbedtls_ssl_read_record(),
-     * otherwise read it ourselves manually in order to support SSLv2
-     * ClientHello, which doesn't use the same record layer format.
-     */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
-#endif
-    {
-        if( ( ret = mbedtls_ssl_fetch_input( ssl, 5 ) ) != 0 )
-        {
-            /* No alert on a read error. */
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
-            return( ret );
-        }
-    }
-
-    buf = ssl->in_hdr;
-
-#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_STREAM )
-#endif
-        if( ( buf[0] & 0x80 ) != 0 )
-            return( ssl_parse_client_hello_v2( ssl ) );
-#endif
-
-    MBEDTLS_SSL_DEBUG_BUF( 4, "record header", buf, mbedtls_ssl_hdr_len( ssl ) );
-
-    /*
-     * SSLv3/TLS Client Hello
-     *
-     * Record layer:
-     *     0  .   0   message type
-     *     1  .   2   protocol version
-     *     3  .   11  DTLS: epoch + record sequence number
-     *     3  .   4   message length
-     */
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, message type: %d",
-                   buf[0] ) );
-
-    if( buf[0] != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, message len.: %d",
-                   ( ssl->in_len[0] << 8 ) | ssl->in_len[1] ) );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, protocol version: [%d:%d]",
-                   buf[1], buf[2] ) );
-
-    mbedtls_ssl_read_version( &major, &minor, ssl->conf->transport, buf + 1 );
-
-    /* According to RFC 5246 Appendix E.1, the version here is typically
-     * "{03,00}, the lowest version number supported by the client, [or] the
-     * value of ClientHello.client_version", so the only meaningful check here
-     * is the major version shouldn't be less than 3 */
-    if( major < MBEDTLS_SSL_MAJOR_VERSION_3 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    /* For DTLS if this is the initial handshake, remember the client sequence
-     * number to use it in our next message (RFC 6347 4.2.1) */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-        && ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE
-#endif
-        )
-    {
-        /* Epoch should be 0 for initial handshakes */
-        if( ssl->in_ctr[0] != 0 || ssl->in_ctr[1] != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-        }
-
-        memcpy( ssl->cur_out_ctr + 2, ssl->in_ctr + 2, 6 );
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-        if( mbedtls_ssl_dtls_replay_check( ssl ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "replayed record, discarding" ) );
-            ssl->next_record_offset = 0;
-            ssl->in_left = 0;
-            goto read_record_header;
-        }
-
-        /* No MAC to check yet, so we can update right now */
-        mbedtls_ssl_dtls_replay_update( ssl );
-#endif
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    msg_len = ( ssl->in_len[0] << 8 ) | ssl->in_len[1];
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
-    {
-        /* Set by mbedtls_ssl_read_record() */
-        msg_len = ssl->in_hslen;
-    }
-    else
-#endif
-    {
-        if( msg_len > MBEDTLS_SSL_IN_CONTENT_LEN )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-        }
-
-        if( ( ret = mbedtls_ssl_fetch_input( ssl,
-                       mbedtls_ssl_hdr_len( ssl ) + msg_len ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
-            return( ret );
-        }
-
-    /* Done reading this record, get ready for the next one */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-            ssl->next_record_offset = msg_len + mbedtls_ssl_hdr_len( ssl );
-        else
-#endif
-            ssl->in_left = 0;
-    }
-
-    buf = ssl->in_msg;
-
-    MBEDTLS_SSL_DEBUG_BUF( 4, "record contents", buf, msg_len );
-
-    ssl->handshake->update_checksum( ssl, buf, msg_len );
-
-    /*
-     * Handshake layer:
-     *     0  .   0   handshake type
-     *     1  .   3   handshake length
-     *     4  .   5   DTLS only: message seqence number
-     *     6  .   8   DTLS only: fragment offset
-     *     9  .  11   DTLS only: fragment length
-     */
-    if( msg_len < mbedtls_ssl_hs_hdr_len( ssl ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake type: %d", buf[0] ) );
-
-    if( buf[0] != MBEDTLS_SSL_HS_CLIENT_HELLO )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake len.: %d",
-                   ( buf[1] << 16 ) | ( buf[2] << 8 ) | buf[3] ) );
-
-    /* We don't support fragmentation of ClientHello (yet?) */
-    if( buf[1] != 0 ||
-        msg_len != mbedtls_ssl_hs_hdr_len( ssl ) + ( ( buf[2] << 8 ) | buf[3] ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        /*
-         * Copy the client's handshake message_seq on initial handshakes,
-         * check sequence number on renego.
-         */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-        if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-        {
-            /* This couldn't be done in ssl_prepare_handshake_record() */
-            unsigned int cli_msg_seq = ( ssl->in_msg[4] << 8 ) |
-                                         ssl->in_msg[5];
-
-            if( cli_msg_seq != ssl->handshake->in_msg_seq )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message_seq: "
-                                    "%d (expected %d)", cli_msg_seq,
-                                    ssl->handshake->in_msg_seq ) );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-
-            ssl->handshake->in_msg_seq++;
-        }
-        else
-#endif
-        {
-            unsigned int cli_msg_seq = ( ssl->in_msg[4] << 8 ) |
-                                         ssl->in_msg[5];
-            ssl->handshake->out_msg_seq = cli_msg_seq;
-            ssl->handshake->in_msg_seq  = cli_msg_seq + 1;
-        }
-
-        /*
-         * For now we don't support fragmentation, so make sure
-         * fragment_offset == 0 and fragment_length == length
-         */
-        if( ssl->in_msg[6] != 0 || ssl->in_msg[7] != 0 || ssl->in_msg[8] != 0 ||
-            memcmp( ssl->in_msg + 1, ssl->in_msg + 9, 3 ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "ClientHello fragmentation not supported" ) );
-            return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-        }
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    buf += mbedtls_ssl_hs_hdr_len( ssl );
-    msg_len -= mbedtls_ssl_hs_hdr_len( ssl );
-
-    /*
-     * ClientHello layer:
-     *     0  .   1   protocol version
-     *     2  .  33   random bytes (starting with 4 bytes of Unix time)
-     *    34  .  35   session id length (1 byte)
-     *    35  . 34+x  session id
-     *   35+x . 35+x  DTLS only: cookie length (1 byte)
-     *   36+x .  ..   DTLS only: cookie
-     *    ..  .  ..   ciphersuite list length (2 bytes)
-     *    ..  .  ..   ciphersuite list
-     *    ..  .  ..   compression alg. list length (1 byte)
-     *    ..  .  ..   compression alg. list
-     *    ..  .  ..   extensions length (2 bytes, optional)
-     *    ..  .  ..   extensions (optional)
-     */
-
-    /*
-     * Minimal length (with everything empty and extensions omitted) is
-     * 2 + 32 + 1 + 2 + 1 = 38 bytes. Check that first, so that we can
-     * read at least up to session id length without worrying.
-     */
-    if( msg_len < 38 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    /*
-     * Check and save the protocol version
-     */
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, version", buf, 2 );
-
-    mbedtls_ssl_read_version( &ssl->major_ver, &ssl->minor_ver,
-                      ssl->conf->transport, buf );
-
-    ssl->handshake->max_major_ver = ssl->major_ver;
-    ssl->handshake->max_minor_ver = ssl->minor_ver;
-
-    if( ssl->major_ver < ssl->conf->min_major_ver ||
-        ssl->minor_ver < ssl->conf->min_minor_ver )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "client only supports ssl smaller than minimum"
-                            " [%d:%d] < [%d:%d]",
-                            ssl->major_ver, ssl->minor_ver,
-                            ssl->conf->min_major_ver, ssl->conf->min_minor_ver ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
-        return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
-    }
-
-    if( ssl->major_ver > ssl->conf->max_major_ver )
-    {
-        ssl->major_ver = ssl->conf->max_major_ver;
-        ssl->minor_ver = ssl->conf->max_minor_ver;
-    }
-    else if( ssl->minor_ver > ssl->conf->max_minor_ver )
-        ssl->minor_ver = ssl->conf->max_minor_ver;
-
-    /*
-     * Save client random (inc. Unix time)
-     */
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, random bytes", buf + 2, 32 );
-
-    memcpy( ssl->handshake->randbytes, buf + 2, 32 );
-
-    /*
-     * Check the session ID length and save session ID
-     */
-    sess_len = buf[34];
-
-    if( sess_len > sizeof( ssl->session_negotiate->id ) ||
-        sess_len + 34 + 2 > msg_len ) /* 2 for cipherlist length field */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id", buf + 35, sess_len );
-
-    ssl->session_negotiate->id_len = sess_len;
-    memset( ssl->session_negotiate->id, 0,
-            sizeof( ssl->session_negotiate->id ) );
-    memcpy( ssl->session_negotiate->id, buf + 35,
-            ssl->session_negotiate->id_len );
-
-    /*
-     * Check the cookie length and content
-     */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        cookie_offset = 35 + sess_len;
-        cookie_len = buf[cookie_offset];
-
-        if( cookie_offset + 1 + cookie_len + 2 > msg_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-        }
-
-        MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, cookie",
-                       buf + cookie_offset + 1, cookie_len );
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-        if( ssl->conf->f_cookie_check != NULL
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-            && ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE
-#endif
-            )
-        {
-            if( ssl->conf->f_cookie_check( ssl->conf->p_cookie,
-                                     buf + cookie_offset + 1, cookie_len,
-                                     ssl->cli_id, ssl->cli_id_len ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification failed" ) );
-                ssl->handshake->verify_cookie_len = 1;
-            }
-            else
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification passed" ) );
-                ssl->handshake->verify_cookie_len = 0;
-            }
-        }
-        else
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
-        {
-            /* We know we didn't send a cookie, so it should be empty */
-            if( cookie_len != 0 )
-            {
-                /* This may be an attacker's probe, so don't send an alert */
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification skipped" ) );
-        }
-
-    /*
-     * Check the ciphersuitelist length (will be parsed later)
-     */
-        ciph_offset = cookie_offset + 1 + cookie_len;
-    }
-    else
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-        ciph_offset = 35 + sess_len;
-
-    ciph_len = ( buf[ciph_offset + 0] << 8 )
-             | ( buf[ciph_offset + 1]      );
-
-    if( ciph_len < 2 ||
-        ciph_len + 2 + ciph_offset + 1 > msg_len || /* 1 for comp. alg. len */
-        ( ciph_len % 2 ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist",
-                   buf + ciph_offset + 2,  ciph_len );
-
-    /*
-     * Check the compression algorithms length and pick one
-     */
-    comp_offset = ciph_offset + 2 + ciph_len;
-
-    comp_len = buf[comp_offset];
-
-    if( comp_len < 1 ||
-        comp_len > 16 ||
-        comp_len + comp_offset + 1 > msg_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, compression",
-                      buf + comp_offset + 1, comp_len );
-
-    ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_NULL;
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    for( i = 0; i < comp_len; ++i )
-    {
-        if( buf[comp_offset + 1 + i] == MBEDTLS_SSL_COMPRESS_DEFLATE )
-        {
-            ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_DEFLATE;
-            break;
-        }
-    }
-#endif
-
-    /* See comments in ssl_write_client_hello() */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_NULL;
-#endif
-
-    /* Do not parse the extensions if the protocol is SSLv3 */
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    if( ( ssl->major_ver != 3 ) || ( ssl->minor_ver != 0 ) )
-    {
-#endif
-        /*
-         * Check the extension length
-         */
-        ext_offset = comp_offset + 1 + comp_len;
-        if( msg_len > ext_offset )
-        {
-            if( msg_len < ext_offset + 2 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-
-            ext_len = ( buf[ext_offset + 0] << 8 )
-                    | ( buf[ext_offset + 1]      );
-
-            if( ( ext_len > 0 && ext_len < 4 ) ||
-                msg_len != ext_offset + 2 + ext_len )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-        }
-        else
-            ext_len = 0;
-
-        ext = buf + ext_offset + 2;
-        MBEDTLS_SSL_DEBUG_BUF( 3, "client hello extensions", ext, ext_len );
-
-        while( ext_len != 0 )
-        {
-            unsigned int ext_id;
-            unsigned int ext_size;
-            if ( ext_len < 4 ) {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                               MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-            ext_id   = ( ( ext[0] <<  8 ) | ( ext[1] ) );
-            ext_size = ( ( ext[2] <<  8 ) | ( ext[3] ) );
-
-            if( ext_size + 4 > ext_len )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-            switch( ext_id )
-            {
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-            case MBEDTLS_TLS_EXT_SERVERNAME:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ServerName extension" ) );
-                if( ssl->conf->f_sni == NULL )
-                    break;
-
-                ret = ssl_parse_servername_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-
-            case MBEDTLS_TLS_EXT_RENEGOTIATION_INFO:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found renegotiation extension" ) );
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-                renegotiation_info_seen = 1;
-#endif
-
-                ret = ssl_parse_renegotiation_info( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-            case MBEDTLS_TLS_EXT_SIG_ALG:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found signature_algorithms extension" ) );
-
-                ret = ssl_parse_signature_algorithms_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-
-                sig_hash_alg_ext_present = 1;
-                break;
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
-          MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-            case MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported elliptic curves extension" ) );
-
-                ret = ssl_parse_supported_elliptic_curves( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-
-            case MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported point formats extension" ) );
-                ssl->handshake->cli_exts |= MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT;
-
-                ret = ssl_parse_supported_point_formats( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
-          MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-            case MBEDTLS_TLS_EXT_ECJPAKE_KKPP:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ecjpake kkpp extension" ) );
-
-                ret = ssl_parse_ecjpake_kkpp( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-            case MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found max fragment length extension" ) );
-
-                ret = ssl_parse_max_fragment_length_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-            case MBEDTLS_TLS_EXT_TRUNCATED_HMAC:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found truncated hmac extension" ) );
-
-                ret = ssl_parse_truncated_hmac_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-            case MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found encrypt then mac extension" ) );
-
-                ret = ssl_parse_encrypt_then_mac_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-            case MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found extended master secret extension" ) );
-
-                ret = ssl_parse_extended_ms_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-            case MBEDTLS_TLS_EXT_SESSION_TICKET:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found session ticket extension" ) );
-
-                ret = ssl_parse_session_ticket_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-#if defined(MBEDTLS_SSL_ALPN)
-            case MBEDTLS_TLS_EXT_ALPN:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found alpn extension" ) );
-
-                ret = ssl_parse_alpn_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
-                break;
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-            default:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)",
-                               ext_id ) );
-            }
-
-            ext_len -= 4 + ext_size;
-            ext += 4 + ext_size;
-
-            if( ext_len > 0 && ext_len < 4 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-        }
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    }
-#endif
-
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
-    for( i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2 )
-    {
-        if( p[0] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ) & 0xff ) &&
-            p[1] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE      ) & 0xff ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "received FALLBACK_SCSV" ) );
-
-            if( ssl->minor_ver < ssl->conf->max_minor_ver )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "inapropriate fallback" ) );
-
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK );
-
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-
-            break;
-        }
-    }
-#endif /* MBEDTLS_SSL_FALLBACK_SCSV */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-
-    /*
-     * Try to fall back to default hash SHA1 if the client
-     * hasn't provided any preferred signature-hash combinations.
-     */
-    if( sig_hash_alg_ext_present == 0 )
-    {
-        mbedtls_md_type_t md_default = MBEDTLS_MD_SHA1;
-
-        if( mbedtls_ssl_check_sig_hash( ssl, md_default ) != 0 )
-            md_default = MBEDTLS_MD_NONE;
-
-        mbedtls_ssl_sig_hash_set_const_hash( &ssl->handshake->hash_algs, md_default );
-    }
-
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
-          MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-    /*
-     * Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV
-     */
-    for( i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2 )
-    {
-        if( p[0] == 0 && p[1] == MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "received TLS_EMPTY_RENEGOTIATION_INFO " ) );
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-            if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV "
-                                            "during renegotiation" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-            }
-#endif
-            ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
-            break;
-        }
-    }
-
-    /*
-     * Renegotiation security checks
-     */
-    if( ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION &&
-        ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) );
-        handshake_failure = 1;
-    }
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
-             ssl->secure_renegotiation == MBEDTLS_SSL_SECURE_RENEGOTIATION &&
-             renegotiation_info_seen == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension missing (secure)" ) );
-        handshake_failure = 1;
-    }
-    else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
-             ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
-             ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation not allowed" ) );
-        handshake_failure = 1;
-    }
-    else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
-             ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
-             renegotiation_info_seen == 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension present (legacy)" ) );
-        handshake_failure = 1;
-    }
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-    if( handshake_failure == 1 )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    /*
-     * Search for a matching ciphersuite
-     * (At the end because we need information from the EC-based extensions
-     * and certificate from the SNI callback triggered by the SNI extension.)
-     */
-    got_common_suite = 0;
-    ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver];
-    ciphersuite_info = NULL;
-#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
-    for( j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2 )
-        for( i = 0; ciphersuites[i] != 0; i++ )
-#else
-    for( i = 0; ciphersuites[i] != 0; i++ )
-        for( j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2 )
-#endif
-        {
-            if( p[0] != ( ( ciphersuites[i] >> 8 ) & 0xFF ) ||
-                p[1] != ( ( ciphersuites[i]      ) & 0xFF ) )
-                continue;
-
-            got_common_suite = 1;
-
-            if( ( ret = ssl_ciphersuite_match( ssl, ciphersuites[i],
-                                               &ciphersuite_info ) ) != 0 )
-                return( ret );
-
-            if( ciphersuite_info != NULL )
-                goto have_ciphersuite;
-        }
-
-    if( got_common_suite )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got ciphersuites in common, "
-                            "but none of them usable" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE );
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN );
-    }
-
-have_ciphersuite:
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "selected ciphersuite: %s", ciphersuite_info->name ) );
-
-    ssl->session_negotiate->ciphersuite = ciphersuites[i];
-    ssl->transform_negotiate->ciphersuite_info = ciphersuite_info;
-
-    ssl->state++;
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        mbedtls_ssl_recv_flight_completed( ssl );
-#endif
-
-    /* Debugging-only output for testsuite */
-#if defined(MBEDTLS_DEBUG_C)                         && \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)                && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        mbedtls_pk_type_t sig_alg = mbedtls_ssl_get_ciphersuite_sig_alg( ciphersuite_info );
-        if( sig_alg != MBEDTLS_PK_NONE )
-        {
-            mbedtls_md_type_t md_alg = mbedtls_ssl_sig_hash_set_find( &ssl->handshake->hash_algs,
-                                                                  sig_alg );
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext: %d",
-                                        mbedtls_ssl_hash_from_md_alg( md_alg ) ) );
-        }
-        else
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "no hash algorithm for signature algorithm "
-                                        "%d - should not happen", sig_alg ) );
-        }
-    }
-#endif
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client hello" ) );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-static void ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl,
-                                          unsigned char *buf,
-                                          size_t *olen )
-{
-    unsigned char *p = buf;
-
-    if( ssl->session_negotiate->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED )
-    {
-        *olen = 0;
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding truncated hmac extension" ) );
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 0x00;
-
-    *olen = 4;
-}
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
-                                            unsigned char *buf,
-                                            size_t *olen )
-{
-    unsigned char *p = buf;
-    const mbedtls_ssl_ciphersuite_t *suite = NULL;
-    const mbedtls_cipher_info_t *cipher = NULL;
-
-    if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED ||
-        ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        *olen = 0;
-        return;
-    }
-
-    /*
-     * RFC 7366: "If a server receives an encrypt-then-MAC request extension
-     * from a client and then selects a stream or Authenticated Encryption
-     * with Associated Data (AEAD) ciphersuite, it MUST NOT send an
-     * encrypt-then-MAC response extension back to the client."
-     */
-    if( ( suite = mbedtls_ssl_ciphersuite_from_id(
-                    ssl->session_negotiate->ciphersuite ) ) == NULL ||
-        ( cipher = mbedtls_cipher_info_from_type( suite->cipher ) ) == NULL ||
-        cipher->mode != MBEDTLS_MODE_CBC )
-    {
-        *olen = 0;
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding encrypt then mac extension" ) );
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 0x00;
-
-    *olen = 4;
-}
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl,
-                                       unsigned char *buf,
-                                       size_t *olen )
-{
-    unsigned char *p = buf;
-
-    if( ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
-        ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        *olen = 0;
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding extended master secret "
-                        "extension" ) );
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 0x00;
-
-    *olen = 4;
-}
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-static void ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl,
-                                          unsigned char *buf,
-                                          size_t *olen )
-{
-    unsigned char *p = buf;
-
-    if( ssl->handshake->new_session_ticket == 0 )
-    {
-        *olen = 0;
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding session ticket extension" ) );
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 0x00;
-
-    *olen = 4;
-}
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-static void ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl,
-                                         unsigned char *buf,
-                                         size_t *olen )
-{
-    unsigned char *p = buf;
-
-    if( ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION )
-    {
-        *olen = 0;
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, secure renegotiation extension" ) );
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO      ) & 0xFF );
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
-    {
-        *p++ = 0x00;
-        *p++ = ( ssl->verify_data_len * 2 + 1 ) & 0xFF;
-        *p++ = ssl->verify_data_len * 2 & 0xFF;
-
-        memcpy( p, ssl->peer_verify_data, ssl->verify_data_len );
-        p += ssl->verify_data_len;
-        memcpy( p, ssl->own_verify_data, ssl->verify_data_len );
-        p += ssl->verify_data_len;
-    }
-    else
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-    {
-        *p++ = 0x00;
-        *p++ = 0x01;
-        *p++ = 0x00;
-    }
-
-    *olen = p - buf;
-}
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-static void ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl,
-                                               unsigned char *buf,
-                                               size_t *olen )
-{
-    unsigned char *p = buf;
-
-    if( ssl->session_negotiate->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE )
-    {
-        *olen = 0;
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, max_fragment_length extension" ) );
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 1;
-
-    *p++ = ssl->session_negotiate->mfl_code;
-
-    *olen = 5;
-}
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-static void ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl,
-                                                   unsigned char *buf,
-                                                   size_t *olen )
-{
-    unsigned char *p = buf;
-    ((void) ssl);
-
-    if( ( ssl->handshake->cli_exts &
-          MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT ) == 0 )
-    {
-        *olen = 0;
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, supported_point_formats extension" ) );
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS      ) & 0xFF );
-
-    *p++ = 0x00;
-    *p++ = 2;
-
-    *p++ = 1;
-    *p++ = MBEDTLS_ECP_PF_UNCOMPRESSED;
-
-    *olen = 6;
-}
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-static void ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl,
-                                        unsigned char *buf,
-                                        size_t *olen )
-{
-    int ret;
-    unsigned char *p = buf;
-    const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-    size_t kkpp_len;
-
-    *olen = 0;
-
-    /* Skip costly computation if not needed */
-    if( ssl->transform_negotiate->ciphersuite_info->key_exchange !=
-        MBEDTLS_KEY_EXCHANGE_ECJPAKE )
-        return;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, ecjpake kkpp extension" ) );
-
-    if( end - p < 4 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
-        return;
-    }
-
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP      ) & 0xFF );
-
-    ret = mbedtls_ecjpake_write_round_one( &ssl->handshake->ecjpake_ctx,
-                                        p + 2, end - p - 2, &kkpp_len,
-                                        ssl->conf->f_rng, ssl->conf->p_rng );
-    if( ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1 , "mbedtls_ecjpake_write_round_one", ret );
-        return;
-    }
-
-    *p++ = (unsigned char)( ( kkpp_len >> 8 ) & 0xFF );
-    *p++ = (unsigned char)( ( kkpp_len      ) & 0xFF );
-
-    *olen = kkpp_len + 4;
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_SSL_ALPN )
-static void ssl_write_alpn_ext( mbedtls_ssl_context *ssl,
-                                unsigned char *buf, size_t *olen )
-{
-    if( ssl->alpn_chosen == NULL )
-    {
-        *olen = 0;
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding alpn extension" ) );
-
-    /*
-     * 0 . 1    ext identifier
-     * 2 . 3    ext length
-     * 4 . 5    protocol list length
-     * 6 . 6    protocol name length
-     * 7 . 7+n  protocol name
-     */
-    buf[0] = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN >> 8 ) & 0xFF );
-    buf[1] = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN      ) & 0xFF );
-
-    *olen = 7 + strlen( ssl->alpn_chosen );
-
-    buf[2] = (unsigned char)( ( ( *olen - 4 ) >> 8 ) & 0xFF );
-    buf[3] = (unsigned char)( ( ( *olen - 4 )      ) & 0xFF );
-
-    buf[4] = (unsigned char)( ( ( *olen - 6 ) >> 8 ) & 0xFF );
-    buf[5] = (unsigned char)( ( ( *olen - 6 )      ) & 0xFF );
-
-    buf[6] = (unsigned char)( ( ( *olen - 7 )      ) & 0xFF );
-
-    memcpy( buf + 7, ssl->alpn_chosen, *olen - 7 );
-}
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C */
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-static int ssl_write_hello_verify_request( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    unsigned char *p = ssl->out_msg + 4;
-    unsigned char *cookie_len_byte;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello verify request" ) );
-
-    /*
-     * struct {
-     *   ProtocolVersion server_version;
-     *   opaque cookie<0..2^8-1>;
-     * } HelloVerifyRequest;
-     */
-
-    /* The RFC is not clear on this point, but sending the actual negotiated
-     * version looks like the most interoperable thing to do. */
-    mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
-                       ssl->conf->transport, p );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "server version", p, 2 );
-    p += 2;
-
-    /* If we get here, f_cookie_check is not null */
-    if( ssl->conf->f_cookie_write == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "inconsistent cookie callbacks" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    /* Skip length byte until we know the length */
-    cookie_len_byte = p++;
-
-    if( ( ret = ssl->conf->f_cookie_write( ssl->conf->p_cookie,
-                                     &p, ssl->out_buf + MBEDTLS_SSL_OUT_BUFFER_LEN,
-                                     ssl->cli_id, ssl->cli_id_len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "f_cookie_write", ret );
-        return( ret );
-    }
-
-    *cookie_len_byte = (unsigned char)( p - ( cookie_len_byte + 1 ) );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "cookie sent", cookie_len_byte + 1, *cookie_len_byte );
-
-    ssl->out_msglen  = p - ssl->out_msg;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST;
-
-    ssl->state = MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT;
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
-        return( ret );
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello verify request" ) );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
-
-static int ssl_write_server_hello( mbedtls_ssl_context *ssl )
-{
-#if defined(MBEDTLS_HAVE_TIME)
-    mbedtls_time_t t;
-#endif
-    int ret;
-    size_t olen, ext_len = 0, n;
-    unsigned char *buf, *p;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server hello" ) );
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake->verify_cookie_len != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "client hello was not authenticated" ) );
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello" ) );
-
-        return( ssl_write_hello_verify_request( ssl ) );
-    }
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
-
-    if( ssl->conf->f_rng == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided") );
-        return( MBEDTLS_ERR_SSL_NO_RNG );
-    }
-
-    /*
-     *     0  .   0   handshake type
-     *     1  .   3   handshake length
-     *     4  .   5   protocol version
-     *     6  .   9   UNIX time()
-     *    10  .  37   random bytes
-     */
-    buf = ssl->out_msg;
-    p = buf + 4;
-
-    mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
-                       ssl->conf->transport, p );
-    p += 2;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen version: [%d:%d]",
-                        buf[4], buf[5] ) );
-
-#if defined(MBEDTLS_HAVE_TIME)
-    t = mbedtls_time( NULL );
-    *p++ = (unsigned char)( t >> 24 );
-    *p++ = (unsigned char)( t >> 16 );
-    *p++ = (unsigned char)( t >>  8 );
-    *p++ = (unsigned char)( t       );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu", t ) );
-#else
-    if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 )
-        return( ret );
-
-    p += 4;
-#endif /* MBEDTLS_HAVE_TIME */
-
-    if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 28 ) ) != 0 )
-        return( ret );
-
-    p += 28;
-
-    memcpy( ssl->handshake->randbytes + 32, buf + 6, 32 );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, random bytes", buf + 6, 32 );
-
-    /*
-     * Resume is 0  by default, see ssl_handshake_init().
-     * It may be already set to 1 by ssl_parse_session_ticket_ext().
-     * If not, try looking up session ID in our cache.
-     */
-    if( ssl->handshake->resume == 0 &&
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-        ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE &&
-#endif
-        ssl->session_negotiate->id_len != 0 &&
-        ssl->conf->f_get_cache != NULL &&
-        ssl->conf->f_get_cache( ssl->conf->p_cache, ssl->session_negotiate ) == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "session successfully restored from cache" ) );
-        ssl->handshake->resume = 1;
-    }
-
-    if( ssl->handshake->resume == 0 )
-    {
-        /*
-         * New session, create a new session id,
-         * unless we're about to issue a session ticket
-         */
-        ssl->state++;
-
-#if defined(MBEDTLS_HAVE_TIME)
-        ssl->session_negotiate->start = mbedtls_time( NULL );
-#endif
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-        if( ssl->handshake->new_session_ticket != 0 )
-        {
-            ssl->session_negotiate->id_len = n = 0;
-            memset( ssl->session_negotiate->id, 0, 32 );
-        }
-        else
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-        {
-            ssl->session_negotiate->id_len = n = 32;
-            if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->session_negotiate->id,
-                                    n ) ) != 0 )
-                return( ret );
-        }
-    }
-    else
-    {
-        /*
-         * Resuming a session
-         */
-        n = ssl->session_negotiate->id_len;
-        ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC;
-
-        if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
-            return( ret );
-        }
-    }
-
-    /*
-     *    38  .  38     session id length
-     *    39  . 38+n    session id
-     *   39+n . 40+n    chosen ciphersuite
-     *   41+n . 41+n    chosen compression alg.
-     *   42+n . 43+n    extensions length
-     *   44+n . 43+n+m  extensions
-     */
-    *p++ = (unsigned char) ssl->session_negotiate->id_len;
-    memcpy( p, ssl->session_negotiate->id, ssl->session_negotiate->id_len );
-    p += ssl->session_negotiate->id_len;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3,   "server hello, session id", buf + 39, n );
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "%s session has been resumed",
-                   ssl->handshake->resume ? "a" : "no" ) );
-
-    *p++ = (unsigned char)( ssl->session_negotiate->ciphersuite >> 8 );
-    *p++ = (unsigned char)( ssl->session_negotiate->ciphersuite      );
-    *p++ = (unsigned char)( ssl->session_negotiate->compression      );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %s",
-           mbedtls_ssl_get_ciphersuite_name( ssl->session_negotiate->ciphersuite ) ) );
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: 0x%02X",
-                   ssl->session_negotiate->compression ) );
-
-    /* Do not write the extensions if the protocol is SSLv3 */
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    if( ( ssl->major_ver != 3 ) || ( ssl->minor_ver != 0 ) )
-    {
-#endif
-
-    /*
-     *  First write extensions, then the total length
-     */
-    ssl_write_renegotiation_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    ssl_write_max_fragment_length_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    ssl_write_truncated_hmac_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    ssl_write_encrypt_then_mac_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    ssl_write_extended_ms_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    ssl_write_session_ticket_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if ( mbedtls_ssl_ciphersuite_uses_ec(
-         mbedtls_ssl_ciphersuite_from_id( ssl->session_negotiate->ciphersuite ) ) )
-    {
-        ssl_write_supported_point_formats_ext( ssl, p + 2 + ext_len, &olen );
-        ext_len += olen;
-    }
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    ssl_write_ecjpake_kkpp_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-#if defined(MBEDTLS_SSL_ALPN)
-    ssl_write_alpn_ext( ssl, p + 2 + ext_len, &olen );
-    ext_len += olen;
-#endif
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, total extension length: %d", ext_len ) );
-
-    if( ext_len > 0 )
-    {
-        *p++ = (unsigned char)( ( ext_len >> 8 ) & 0xFF );
-        *p++ = (unsigned char)( ( ext_len      ) & 0xFF );
-        p += ext_len;
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    }
-#endif
-
-    ssl->out_msglen  = p - buf;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_SERVER_HELLO;
-
-    ret = mbedtls_ssl_write_handshake_msg( ssl );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello" ) );
-
-    return( ret );
-}
-
-#if !defined(MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED)
-static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
-{
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) );
-
-    if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-}
-#else /* !MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
-static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
-{
-    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-    size_t dn_size, total_dn_size; /* excluding length bytes */
-    size_t ct_len, sa_len; /* including length bytes */
-    unsigned char *buf, *p;
-    const unsigned char * const end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
-    const mbedtls_x509_crt *crt;
-    int authmode;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) );
-
-    ssl->state++;
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    if( ssl->handshake->sni_authmode != MBEDTLS_SSL_VERIFY_UNSET )
-        authmode = ssl->handshake->sni_authmode;
-    else
-#endif
-        authmode = ssl->conf->authmode;
-
-    if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) ||
-        authmode == MBEDTLS_SSL_VERIFY_NONE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) );
-        return( 0 );
-    }
-
-    /*
-     *     0  .   0   handshake type
-     *     1  .   3   handshake length
-     *     4  .   4   cert type count
-     *     5  .. m-1  cert types
-     *     m  .. m+1  sig alg length (TLS 1.2 only)
-     *    m+1 .. n-1  SignatureAndHashAlgorithms (TLS 1.2 only)
-     *     n  .. n+1  length of all DNs
-     *    n+2 .. n+3  length of DN 1
-     *    n+4 .. ...  Distinguished Name #1
-     *    ... .. ...  length of DN 2, etc.
-     */
-    buf = ssl->out_msg;
-    p = buf + 4;
-
-    /*
-     * Supported certificate types
-     *
-     *     ClientCertificateType certificate_types<1..2^8-1>;
-     *     enum { (255) } ClientCertificateType;
-     */
-    ct_len = 0;
-
-#if defined(MBEDTLS_RSA_C)
-    p[1 + ct_len++] = MBEDTLS_SSL_CERT_TYPE_RSA_SIGN;
-#endif
-#if defined(MBEDTLS_ECDSA_C)
-    p[1 + ct_len++] = MBEDTLS_SSL_CERT_TYPE_ECDSA_SIGN;
-#endif
-
-    p[0] = (unsigned char) ct_len++;
-    p += ct_len;
-
-    sa_len = 0;
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    /*
-     * Add signature_algorithms for verify (TLS 1.2)
-     *
-     *     SignatureAndHashAlgorithm supported_signature_algorithms<2..2^16-2>;
-     *
-     *     struct {
-     *           HashAlgorithm hash;
-     *           SignatureAlgorithm signature;
-     *     } SignatureAndHashAlgorithm;
-     *
-     *     enum { (255) } HashAlgorithm;
-     *     enum { (255) } SignatureAlgorithm;
-     */
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        const int *cur;
-
-        /*
-         * Supported signature algorithms
-         */
-        for( cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++ )
-        {
-            unsigned char hash = mbedtls_ssl_hash_from_md_alg( *cur );
-
-            if( MBEDTLS_SSL_HASH_NONE == hash || mbedtls_ssl_set_calc_verify_md( ssl, hash ) )
-                continue;
-
-#if defined(MBEDTLS_RSA_C)
-            p[2 + sa_len++] = hash;
-            p[2 + sa_len++] = MBEDTLS_SSL_SIG_RSA;
-#endif
-#if defined(MBEDTLS_ECDSA_C)
-            p[2 + sa_len++] = hash;
-            p[2 + sa_len++] = MBEDTLS_SSL_SIG_ECDSA;
-#endif
-        }
-
-        p[0] = (unsigned char)( sa_len >> 8 );
-        p[1] = (unsigned char)( sa_len      );
-        sa_len += 2;
-        p += sa_len;
-    }
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-    /*
-     * DistinguishedName certificate_authorities<0..2^16-1>;
-     * opaque DistinguishedName<1..2^16-1>;
-     */
-    p += 2;
-
-    total_dn_size = 0;
-
-    if( ssl->conf->cert_req_ca_list ==  MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED )
-    {
-        /* NOTE: If trusted certificates are provisioned
-         *       via a CA callback (configured through
-         *       `mbedtls_ssl_conf_ca_cb()`, then the
-         *       CertificateRequest is currently left empty. */
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-        if( ssl->handshake->sni_ca_chain != NULL )
-            crt = ssl->handshake->sni_ca_chain;
-        else
-#endif
-            crt = ssl->conf->ca_chain;
-
-        while( crt != NULL && crt->version != 0 )
-        {
-            dn_size = crt->subject_raw.len;
-
-            if( end < p ||
-                (size_t)( end - p ) < dn_size ||
-                (size_t)( end - p ) < 2 + dn_size )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "skipping CAs: buffer too short" ) );
-                break;
-            }
-
-            *p++ = (unsigned char)( dn_size >> 8 );
-            *p++ = (unsigned char)( dn_size      );
-            memcpy( p, crt->subject_raw.p, dn_size );
-            p += dn_size;
-
-            MBEDTLS_SSL_DEBUG_BUF( 3, "requested DN", p - dn_size, dn_size );
-
-            total_dn_size += 2 + dn_size;
-            crt = crt->next;
-        }
-    }
-
-    ssl->out_msglen  = p - buf;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_CERTIFICATE_REQUEST;
-    ssl->out_msg[4 + ct_len + sa_len] = (unsigned char)( total_dn_size  >> 8 );
-    ssl->out_msg[5 + ct_len + sa_len] = (unsigned char)( total_dn_size       );
-
-    ret = mbedtls_ssl_write_handshake_msg( ssl );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate request" ) );
-
-    return( ret );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    if( ! mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_ECKEY ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) );
-        return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
-    }
-
-    if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx,
-                                 mbedtls_pk_ec( *mbedtls_ssl_own_key( ssl ) ),
-                                 MBEDTLS_ECDH_OURS ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret );
-        return( ret );
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||
-          MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) && \
-    defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-static int ssl_resume_server_key_exchange( mbedtls_ssl_context *ssl,
-                                           size_t *signature_len )
-{
-    /* Append the signature to ssl->out_msg, leaving 2 bytes for the
-     * signature length which will be added in ssl_write_server_key_exchange
-     * after the call to ssl_prepare_server_key_exchange.
-     * ssl_write_server_key_exchange also takes care of incrementing
-     * ssl->out_msglen. */
-    unsigned char *sig_start = ssl->out_msg + ssl->out_msglen + 2;
-    size_t sig_max_len = ( ssl->out_buf + MBEDTLS_SSL_OUT_CONTENT_LEN
-                           - sig_start );
-    int ret = ssl->conf->f_async_resume( ssl,
-                                         sig_start, signature_len, sig_max_len );
-    if( ret != MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
-    {
-        ssl->handshake->async_in_progress = 0;
-        mbedtls_ssl_set_async_operation_data( ssl, NULL );
-    }
-    MBEDTLS_SSL_DEBUG_RET( 2, "ssl_resume_server_key_exchange", ret );
-    return( ret );
-}
-#endif /* defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) &&
-          defined(MBEDTLS_SSL_ASYNC_PRIVATE) */
-
-/* Prepare the ServerKeyExchange message, up to and including
- * calculating the signature if any, but excluding formatting the
- * signature and sending the message. */
-static int ssl_prepare_server_key_exchange( mbedtls_ssl_context *ssl,
-                                            size_t *signature_len )
-{
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-                            ssl->transform_negotiate->ciphersuite_info;
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED)
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
-    unsigned char *dig_signed = NULL;
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED */
-
-    (void) ciphersuite_info; /* unused in some configurations */
-#if !defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
-    (void) signature_len;
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
-
-    ssl->out_msglen = 4; /* header (type:1, length:3) to be written later */
-
-    /*
-     *
-     * Part 1: Provide key exchange parameters for chosen ciphersuite.
-     *
-     */
-
-    /*
-     * - ECJPAKE key exchanges
-     */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
-    {
-        int ret;
-        size_t len = 0;
-
-        ret = mbedtls_ecjpake_write_round_two(
-            &ssl->handshake->ecjpake_ctx,
-            ssl->out_msg + ssl->out_msglen,
-            MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen, &len,
-            ssl->conf->f_rng, ssl->conf->p_rng );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_write_round_two", ret );
-            return( ret );
-        }
-
-        ssl->out_msglen += len;
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-    /*
-     * For (EC)DHE key exchanges with PSK, parameters are prefixed by support
-     * identity hint (RFC 4279, Sec. 3). Until someone needs this feature,
-     * we use empty support identity hints here.
-     **/
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)   || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
-    {
-        ssl->out_msg[ssl->out_msglen++] = 0x00;
-        ssl->out_msg[ssl->out_msglen++] = 0x00;
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
-
-    /*
-     * - DHE key exchanges
-     */
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED)
-    if( mbedtls_ssl_ciphersuite_uses_dhe( ciphersuite_info ) )
-    {
-        int ret;
-        size_t len = 0;
-
-        if( ssl->conf->dhm_P.p == NULL || ssl->conf->dhm_G.p == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "no DH parameters set" ) );
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-        }
-
-        /*
-         * Ephemeral DH parameters:
-         *
-         * struct {
-         *     opaque dh_p<1..2^16-1>;
-         *     opaque dh_g<1..2^16-1>;
-         *     opaque dh_Ys<1..2^16-1>;
-         * } ServerDHParams;
-         */
-        if( ( ret = mbedtls_dhm_set_group( &ssl->handshake->dhm_ctx,
-                                           &ssl->conf->dhm_P,
-                                           &ssl->conf->dhm_G ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_set_group", ret );
-            return( ret );
-        }
-
-        if( ( ret = mbedtls_dhm_make_params(
-                  &ssl->handshake->dhm_ctx,
-                  (int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ),
-                  ssl->out_msg + ssl->out_msglen, &len,
-                  ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_params", ret );
-            return( ret );
-        }
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
-        dig_signed = ssl->out_msg + ssl->out_msglen;
-#endif
-
-        ssl->out_msglen += len;
-
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->handshake->dhm_ctx.X  );
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->handshake->dhm_ctx.P  );
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->handshake->dhm_ctx.G  );
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->handshake->dhm_ctx.GX );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED */
-
-    /*
-     * - ECDHE key exchanges
-     */
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED)
-    if( mbedtls_ssl_ciphersuite_uses_ecdhe( ciphersuite_info ) )
-    {
-        /*
-         * Ephemeral ECDH parameters:
-         *
-         * struct {
-         *     ECParameters curve_params;
-         *     ECPoint      public;
-         * } ServerECDHParams;
-         */
-        const mbedtls_ecp_curve_info **curve = NULL;
-        const mbedtls_ecp_group_id *gid;
-        int ret;
-        size_t len = 0;
-
-        /* Match our preference list against the offered curves */
-        for( gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++ )
-            for( curve = ssl->handshake->curves; *curve != NULL; curve++ )
-                if( (*curve)->grp_id == *gid )
-                    goto curve_matching_done;
-
-curve_matching_done:
-        if( curve == NULL || *curve == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "no matching curve for ECDHE" ) );
-            return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN );
-        }
-
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDHE curve: %s", (*curve)->name ) );
-
-        if( ( ret = mbedtls_ecdh_setup( &ssl->handshake->ecdh_ctx,
-                                        (*curve)->grp_id ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecp_group_load", ret );
-            return( ret );
-        }
-
-        if( ( ret = mbedtls_ecdh_make_params(
-                  &ssl->handshake->ecdh_ctx, &len,
-                  ssl->out_msg + ssl->out_msglen,
-                  MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen,
-                  ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_params", ret );
-            return( ret );
-        }
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
-        dig_signed = ssl->out_msg + ssl->out_msglen;
-#endif
-
-        ssl->out_msglen += len;
-
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_Q );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED */
-
-    /*
-     *
-     * Part 2: For key exchanges involving the server signing the
-     *         exchange parameters, compute and add the signature here.
-     *
-     */
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
-    if( mbedtls_ssl_ciphersuite_uses_server_signature( ciphersuite_info ) )
-    {
-        size_t dig_signed_len = ssl->out_msg + ssl->out_msglen - dig_signed;
-        size_t hashlen = 0;
-        unsigned char hash[MBEDTLS_MD_MAX_SIZE];
-        int ret;
-
-        /*
-         * 2.1: Choose hash algorithm:
-         * A: For TLS 1.2, obey signature-hash-algorithm extension
-         *    to choose appropriate hash.
-         * B: For SSL3, TLS1.0, TLS1.1 and ECDHE_ECDSA, use SHA1
-         *    (RFC 4492, Sec. 5.4)
-         * C: Otherwise, use MD5 + SHA1 (RFC 4346, Sec. 7.4.3)
-         */
-
-        mbedtls_md_type_t md_alg;
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        mbedtls_pk_type_t sig_alg =
-            mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info );
-        if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-        {
-            /* A: For TLS 1.2, obey signature-hash-algorithm extension
-             *    (RFC 5246, Sec. 7.4.1.4.1). */
-            if( sig_alg == MBEDTLS_PK_NONE ||
-                ( md_alg = mbedtls_ssl_sig_hash_set_find( &ssl->handshake->hash_algs,
-                                                          sig_alg ) ) == MBEDTLS_MD_NONE )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                /* (... because we choose a cipher suite
-                 *      only if there is a matching hash.) */
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-            }
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-        if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA )
-        {
-            /* B: Default hash SHA1 */
-            md_alg = MBEDTLS_MD_SHA1;
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
-          MBEDTLS_SSL_PROTO_TLS1_1 */
-        {
-            /* C: MD5 + SHA1 */
-            md_alg = MBEDTLS_MD_NONE;
-        }
-
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "pick hash algorithm %d for signing", md_alg ) );
-
-        /*
-         * 2.2: Compute the hash to be signed
-         */
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-        if( md_alg == MBEDTLS_MD_NONE )
-        {
-            hashlen = 36;
-            ret = mbedtls_ssl_get_key_exchange_md_ssl_tls( ssl, hash,
-                                                           dig_signed,
-                                                           dig_signed_len );
-            if( ret != 0 )
-                return( ret );
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
-          MBEDTLS_SSL_PROTO_TLS1_1 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        if( md_alg != MBEDTLS_MD_NONE )
-        {
-            ret = mbedtls_ssl_get_key_exchange_md_tls1_2( ssl, hash, &hashlen,
-                                                          dig_signed,
-                                                          dig_signed_len,
-                                                          md_alg );
-            if( ret != 0 )
-                return( ret );
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
-          MBEDTLS_SSL_PROTO_TLS1_2 */
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        MBEDTLS_SSL_DEBUG_BUF( 3, "parameters hash", hash, hashlen );
-
-        /*
-         * 2.3: Compute and add the signature
-         */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-        {
-            /*
-             * For TLS 1.2, we need to specify signature and hash algorithm
-             * explicitly through a prefix to the signature.
-             *
-             * struct {
-             *    HashAlgorithm hash;
-             *    SignatureAlgorithm signature;
-             * } SignatureAndHashAlgorithm;
-             *
-             * struct {
-             *    SignatureAndHashAlgorithm algorithm;
-             *    opaque signature<0..2^16-1>;
-             * } DigitallySigned;
-             *
-             */
-
-            ssl->out_msg[ssl->out_msglen++] =
-                mbedtls_ssl_hash_from_md_alg( md_alg );
-            ssl->out_msg[ssl->out_msglen++] =
-                mbedtls_ssl_sig_from_pk_alg( sig_alg );
-        }
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        if( ssl->conf->f_async_sign_start != NULL )
-        {
-            ret = ssl->conf->f_async_sign_start( ssl,
-                                                 mbedtls_ssl_own_cert( ssl ),
-                                                 md_alg, hash, hashlen );
-            switch( ret )
-            {
-            case MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH:
-                /* act as if f_async_sign was null */
-                break;
-            case 0:
-                ssl->handshake->async_in_progress = 1;
-                return( ssl_resume_server_key_exchange( ssl, signature_len ) );
-            case MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS:
-                ssl->handshake->async_in_progress = 1;
-                return( MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS );
-            default:
-                MBEDTLS_SSL_DEBUG_RET( 1, "f_async_sign_start", ret );
-                return( ret );
-            }
-        }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-        if( mbedtls_ssl_own_key( ssl ) == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key" ) );
-            return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
-        }
-
-        /* Append the signature to ssl->out_msg, leaving 2 bytes for the
-         * signature length which will be added in ssl_write_server_key_exchange
-         * after the call to ssl_prepare_server_key_exchange.
-         * ssl_write_server_key_exchange also takes care of incrementing
-         * ssl->out_msglen. */
-        if( ( ret = mbedtls_pk_sign( mbedtls_ssl_own_key( ssl ),
-                                     md_alg, hash, hashlen,
-                                     ssl->out_msg + ssl->out_msglen + 2,
-                                     signature_len,
-                                     ssl->conf->f_rng,
-                                     ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_sign", ret );
-            return( ret );
-        }
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
-
-    return( 0 );
-}
-
-/* Prepare the ServerKeyExchange message and send it. For ciphersuites
- * that do not include a ServerKeyExchange message, do nothing. Either
- * way, if successful, move on to the next step in the SSL state
- * machine. */
-static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    size_t signature_len = 0;
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED)
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-                            ssl->transform_negotiate->ciphersuite_info;
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED */
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server key exchange" ) );
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED)
-    /* Extract static ECDH parameters and abort if ServerKeyExchange
-     * is not needed. */
-    if( mbedtls_ssl_ciphersuite_no_pfs( ciphersuite_info ) )
-    {
-        /* For suites involving ECDH, extract DH parameters
-         * from certificate at this point. */
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED)
-        if( mbedtls_ssl_ciphersuite_uses_ecdh( ciphersuite_info ) )
-        {
-            ssl_get_ecdh_params_from_cert( ssl );
-        }
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED */
-
-        /* Key exchanges not involving ephemeral keys don't use
-         * ServerKeyExchange, so end here. */
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write server key exchange" ) );
-        ssl->state++;
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) && \
-    defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    /* If we have already prepared the message and there is an ongoing
-     * signature operation, resume signing. */
-    if( ssl->handshake->async_in_progress != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "resuming signature operation" ) );
-        ret = ssl_resume_server_key_exchange( ssl, &signature_len );
-    }
-    else
-#endif /* defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) &&
-          defined(MBEDTLS_SSL_ASYNC_PRIVATE) */
-    {
-        /* ServerKeyExchange is needed. Prepare the message. */
-        ret = ssl_prepare_server_key_exchange( ssl, &signature_len );
-    }
-
-    if( ret != 0 )
-    {
-        /* If we're starting to write a new message, set ssl->out_msglen
-         * to 0. But if we're resuming after an asynchronous message,
-         * out_msglen is the amount of data written so far and mst be
-         * preserved. */
-        if( ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server key exchange (pending)" ) );
-        else
-            ssl->out_msglen = 0;
-        return( ret );
-    }
-
-    /* If there is a signature, write its length.
-     * ssl_prepare_server_key_exchange already wrote the signature
-     * itself at its proper place in the output buffer. */
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
-    if( signature_len != 0 )
-    {
-        ssl->out_msg[ssl->out_msglen++] = (unsigned char)( signature_len >> 8 );
-        ssl->out_msg[ssl->out_msglen++] = (unsigned char)( signature_len      );
-
-        MBEDTLS_SSL_DEBUG_BUF( 3, "my signature",
-                               ssl->out_msg + ssl->out_msglen,
-                               signature_len );
-
-        /* Skip over the already-written signature */
-        ssl->out_msglen += signature_len;
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
-
-    /* Add header and send. */
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE;
-
-    ssl->state++;
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server key exchange" ) );
-    return( 0 );
-}
-
-static int ssl_write_server_hello_done( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server hello done" ) );
-
-    ssl->out_msglen  = 4;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_SERVER_HELLO_DONE;
-
-    ssl->state++;
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        mbedtls_ssl_send_flight_completed( ssl );
-#endif
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
-        return( ret );
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello done" ) );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) ||                       \
-    defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-static int ssl_parse_client_dh_public( mbedtls_ssl_context *ssl, unsigned char **p,
-                                       const unsigned char *end )
-{
-    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-    size_t n;
-
-    /*
-     * Receive G^Y mod P, premaster = (G^Y)^X mod P
-     */
-    if( *p + 2 > end )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-    }
-
-    n = ( (*p)[0] << 8 ) | (*p)[1];
-    *p += 2;
-
-    if( *p + n > end )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-    }
-
-    if( ( ret = mbedtls_dhm_read_public( &ssl->handshake->dhm_ctx, *p, n ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_read_public", ret );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP );
-    }
-
-    *p += n;
-
-    MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->handshake->dhm_ctx.GY );
-
-    return( ret );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) ||                           \
-    defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-static int ssl_resume_decrypt_pms( mbedtls_ssl_context *ssl,
-                                   unsigned char *peer_pms,
-                                   size_t *peer_pmslen,
-                                   size_t peer_pmssize )
-{
-    int ret = ssl->conf->f_async_resume( ssl,
-                                         peer_pms, peer_pmslen, peer_pmssize );
-    if( ret != MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
-    {
-        ssl->handshake->async_in_progress = 0;
-        mbedtls_ssl_set_async_operation_data( ssl, NULL );
-    }
-    MBEDTLS_SSL_DEBUG_RET( 2, "ssl_decrypt_encrypted_pms", ret );
-    return( ret );
-}
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl,
-                                      const unsigned char *p,
-                                      const unsigned char *end,
-                                      unsigned char *peer_pms,
-                                      size_t *peer_pmslen,
-                                      size_t peer_pmssize )
-{
-    int ret;
-    mbedtls_pk_context *private_key = mbedtls_ssl_own_key( ssl );
-    mbedtls_pk_context *public_key = &mbedtls_ssl_own_cert( ssl )->pk;
-    size_t len = mbedtls_pk_get_len( public_key );
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    /* If we have already started decoding the message and there is an ongoing
-     * decryption operation, resume signing. */
-    if( ssl->handshake->async_in_progress != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "resuming decryption operation" ) );
-        return( ssl_resume_decrypt_pms( ssl,
-                                        peer_pms, peer_pmslen, peer_pmssize ) );
-    }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-    /*
-     * Prepare to decrypt the premaster using own private RSA key
-     */
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        if ( p + 2 > end ) {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-        }
-        if( *p++ != ( ( len >> 8 ) & 0xFF ) ||
-            *p++ != ( ( len      ) & 0xFF ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-        }
-    }
-#endif
-
-    if( p + len != end )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-    }
-
-    /*
-     * Decrypt the premaster secret
-     */
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    if( ssl->conf->f_async_decrypt_start != NULL )
-    {
-        ret = ssl->conf->f_async_decrypt_start( ssl,
-                                                mbedtls_ssl_own_cert( ssl ),
-                                                p, len );
-        switch( ret )
-        {
-        case MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH:
-            /* act as if f_async_decrypt_start was null */
-            break;
-        case 0:
-            ssl->handshake->async_in_progress = 1;
-            return( ssl_resume_decrypt_pms( ssl,
-                                            peer_pms,
-                                            peer_pmslen,
-                                            peer_pmssize ) );
-        case MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS:
-            ssl->handshake->async_in_progress = 1;
-            return( MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS );
-        default:
-            MBEDTLS_SSL_DEBUG_RET( 1, "f_async_decrypt_start", ret );
-            return( ret );
-        }
-    }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-    if( ! mbedtls_pk_can_do( private_key, MBEDTLS_PK_RSA ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no RSA private key" ) );
-        return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
-    }
-
-    ret = mbedtls_pk_decrypt( private_key, p, len,
-                              peer_pms, peer_pmslen, peer_pmssize,
-                              ssl->conf->f_rng, ssl->conf->p_rng );
-    return( ret );
-}
-
-static int ssl_parse_encrypted_pms( mbedtls_ssl_context *ssl,
-                                    const unsigned char *p,
-                                    const unsigned char *end,
-                                    size_t pms_offset )
-{
-    int ret;
-    unsigned char *pms = ssl->handshake->premaster + pms_offset;
-    unsigned char ver[2];
-    unsigned char fake_pms[48], peer_pms[48];
-    unsigned char mask;
-    size_t i, peer_pmslen;
-    unsigned int diff;
-
-    /* In case of a failure in decryption, the decryption may write less than
-     * 2 bytes of output, but we always read the first two bytes. It doesn't
-     * matter in the end because diff will be nonzero in that case due to
-     * peer_pmslen being less than 48, and we only care whether diff is 0.
-     * But do initialize peer_pms for robustness anyway. This also makes
-     * memory analyzers happy (don't access uninitialized memory, even
-     * if it's an unsigned char). */
-    peer_pms[0] = peer_pms[1] = ~0;
-
-    ret = ssl_decrypt_encrypted_pms( ssl, p, end,
-                                     peer_pms,
-                                     &peer_pmslen,
-                                     sizeof( peer_pms ) );
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    if ( ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
-        return( ret );
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-    mbedtls_ssl_write_version( ssl->handshake->max_major_ver,
-                               ssl->handshake->max_minor_ver,
-                               ssl->conf->transport, ver );
-
-    /* Avoid data-dependent branches while checking for invalid
-     * padding, to protect against timing-based Bleichenbacher-type
-     * attacks. */
-    diff  = (unsigned int) ret;
-    diff |= peer_pmslen ^ 48;
-    diff |= peer_pms[0] ^ ver[0];
-    diff |= peer_pms[1] ^ ver[1];
-
-    /* mask = diff ? 0xff : 0x00 using bit operations to avoid branches */
-    /* MSVC has a warning about unary minus on unsigned, but this is
-     * well-defined and precisely what we want to do here */
-#if defined(_MSC_VER)
-#pragma warning( push )
-#pragma warning( disable : 4146 )
-#endif
-    mask = - ( ( diff | - diff ) >> ( sizeof( unsigned int ) * 8 - 1 ) );
-#if defined(_MSC_VER)
-#pragma warning( pop )
-#endif
-
-    /*
-     * Protection against Bleichenbacher's attack: invalid PKCS#1 v1.5 padding
-     * must not cause the connection to end immediately; instead, send a
-     * bad_record_mac later in the handshake.
-     * To protect against timing-based variants of the attack, we must
-     * not have any branch that depends on whether the decryption was
-     * successful. In particular, always generate the fake premaster secret,
-     * regardless of whether it will ultimately influence the output or not.
-     */
-    ret = ssl->conf->f_rng( ssl->conf->p_rng, fake_pms, sizeof( fake_pms ) );
-    if( ret != 0 )
-    {
-        /* It's ok to abort on an RNG failure, since this does not reveal
-         * anything about the RSA decryption. */
-        return( ret );
-    }
-
-#if defined(MBEDTLS_SSL_DEBUG_ALL)
-    if( diff != 0 )
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-#endif
-
-    if( sizeof( ssl->handshake->premaster ) < pms_offset ||
-        sizeof( ssl->handshake->premaster ) - pms_offset < 48 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-    ssl->handshake->pmslen = 48;
-
-    /* Set pms to either the true or the fake PMS, without
-     * data-dependent branches. */
-    for( i = 0; i < ssl->handshake->pmslen; i++ )
-        pms[i] = ( mask & fake_pms[i] ) | ( (~mask) & peer_pms[i] );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned char **p,
-                                          const unsigned char *end )
-{
-    int ret = 0;
-    size_t n;
-
-    if( ssl_conf_has_psk_or_cb( ssl->conf ) == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no pre-shared key" ) );
-        return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
-    }
-
-    /*
-     * Receive client pre-shared key identity name
-     */
-    if( end - *p < 2 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-    }
-
-    n = ( (*p)[0] << 8 ) | (*p)[1];
-    *p += 2;
-
-    if( n < 1 || n > 65535 || n > (size_t) ( end - *p ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-    }
-
-    if( ssl->conf->f_psk != NULL )
-    {
-        if( ssl->conf->f_psk( ssl->conf->p_psk, ssl, *p, n ) != 0 )
-            ret = MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY;
-    }
-    else
-    {
-        /* Identity is not a big secret since clients send it in the clear,
-         * but treat it carefully anyway, just in case */
-        if( n != ssl->conf->psk_identity_len ||
-            mbedtls_ssl_safer_memcmp( ssl->conf->psk_identity, *p, n ) != 0 )
-        {
-            ret = MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY;
-        }
-    }
-
-    if( ret == MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY )
-    {
-        MBEDTLS_SSL_DEBUG_BUF( 3, "Unknown PSK identity", *p, n );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY );
-        return( MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY );
-    }
-
-    *p += n;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
-    unsigned char *p, *end;
-
-    ciphersuite_info = ssl->transform_negotiate->ciphersuite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client key exchange" ) );
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) && \
-    ( defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \
-      defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) )
-    if( ( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
-          ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA ) &&
-        ( ssl->handshake->async_in_progress != 0 ) )
-    {
-        /* We've already read a record and there is an asynchronous
-         * operation in progress to decrypt it. So skip reading the
-         * record. */
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "will resume decryption of previously-read record" ) );
-    }
-    else
-#endif
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-        return( ret );
-    }
-
-    p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
-    end = ssl->in_msg + ssl->in_hslen;
-
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-    }
-
-    if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-    }
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA )
-    {
-        if( ( ret = ssl_parse_client_dh_public( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_dh_public" ), ret );
-            return( ret );
-        }
-
-        if( p != end )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-        }
-
-        if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx,
-                                      ssl->handshake->premaster,
-                                      MBEDTLS_PREMASTER_SIZE,
-                                     &ssl->handshake->pmslen,
-                                      ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS );
-        }
-
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K  );
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||                     \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ||                   \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||                      \
-    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA )
-    {
-        if( ( ret = mbedtls_ecdh_read_public( &ssl->handshake->ecdh_ctx,
-                                      p, end - p) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_read_public", ret );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP );
-        }
-
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_QP );
-
-        if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx,
-                                      &ssl->handshake->pmslen,
-                                       ssl->handshake->premaster,
-                                       MBEDTLS_MPI_MAX_SIZE,
-                                       ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS );
-        }
-
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_Z );
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED ||
-          MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK )
-    {
-        if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
-            return( ret );
-        }
-
-        if( p != end )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-        }
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        /* For opaque PSKs, we perform the PSK-to-MS derivation atomatically
-         * and skip the intermediate PMS. */
-        if( ssl_use_opaque_psk( ssl ) == 1 )
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "skip PMS generation for opaque PSK" ) );
-        else
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-        if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
-                        ciphersuite_info->key_exchange ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
-            return( ret );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
-    {
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        if ( ssl->handshake->async_in_progress != 0 )
-        {
-            /* There is an asynchronous operation in progress to
-             * decrypt the encrypted premaster secret, so skip
-             * directly to resuming this operation. */
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "PSK identity already parsed" ) );
-            /* Update p to skip the PSK identity. ssl_parse_encrypted_pms
-             * won't actually use it, but maintain p anyway for robustness. */
-            p += ssl->conf->psk_identity_len + 2;
-        }
-        else
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-        if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
-            return( ret );
-        }
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        /* Opaque PSKs are currently only supported for PSK-only. */
-        if( ssl_use_opaque_psk( ssl ) == 1 )
-            return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-#endif
-
-        if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 2 ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_encrypted_pms" ), ret );
-            return( ret );
-        }
-
-        if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
-                        ciphersuite_info->key_exchange ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
-            return( ret );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK )
-    {
-        if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
-            return( ret );
-        }
-        if( ( ret = ssl_parse_client_dh_public( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_dh_public" ), ret );
-            return( ret );
-        }
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        /* Opaque PSKs are currently only supported for PSK-only. */
-        if( ssl_use_opaque_psk( ssl ) == 1 )
-            return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-#endif
-
-        if( p != end )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
-        }
-
-        if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
-                        ciphersuite_info->key_exchange ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
-            return( ret );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
-    {
-        if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
-            return( ret );
-        }
-
-        if( ( ret = mbedtls_ecdh_read_public( &ssl->handshake->ecdh_ctx,
-                                       p, end - p ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_read_public", ret );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP );
-        }
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        /* Opaque PSKs are currently only supported for PSK-only. */
-        if( ssl_use_opaque_psk( ssl ) == 1 )
-            return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-#endif
-
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_QP );
-
-        if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
-                        ciphersuite_info->key_exchange ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
-            return( ret );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA )
-    {
-        if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 0 ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_parse_encrypted_pms_secret" ), ret );
-            return( ret );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
-    {
-        ret = mbedtls_ecjpake_read_round_two( &ssl->handshake->ecjpake_ctx,
-                                              p, end - p );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_two", ret );
-            return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
-        }
-
-        ret = mbedtls_ecjpake_derive_secret( &ssl->handshake->ecjpake_ctx,
-                ssl->handshake->premaster, 32, &ssl->handshake->pmslen,
-                ssl->conf->f_rng, ssl->conf->p_rng );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_derive_secret", ret );
-            return( ret );
-        }
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
-        return( ret );
-    }
-
-    ssl->state++;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client key exchange" ) );
-
-    return( 0 );
-}
-
-#if !defined(MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED)
-static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
-{
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) );
-
-    if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-}
-#else /* !MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
-static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
-{
-    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-    size_t i, sig_len;
-    unsigned char hash[48];
-    unsigned char *hash_start = hash;
-    size_t hashlen;
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    mbedtls_pk_type_t pk_alg;
-#endif
-    mbedtls_md_type_t md_alg;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-    mbedtls_pk_context * peer_pk;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) );
-
-    if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    if( ssl->session_negotiate->peer_cert == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
-        ssl->state++;
-        return( 0 );
-    }
-#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( ssl->session_negotiate->peer_cert_digest == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
-        ssl->state++;
-        return( 0 );
-    }
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-    /* Read the message without adding it to the checksum */
-    ret = mbedtls_ssl_read_record( ssl, 0 /* no checksum update */ );
-    if( 0 != ret )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_read_record" ), ret );
-        return( ret );
-    }
-
-    ssl->state++;
-
-    /* Process the message contents */
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ||
-        ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE_VERIFY )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
-    }
-
-    i = mbedtls_ssl_hs_hdr_len( ssl );
-
-#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    peer_pk = &ssl->handshake->peer_pubkey;
-#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( ssl->session_negotiate->peer_cert == NULL )
-    {
-        /* Should never happen */
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-    peer_pk = &ssl->session_negotiate->peer_cert->pk;
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-    /*
-     *  struct {
-     *     SignatureAndHashAlgorithm algorithm; -- TLS 1.2 only
-     *     opaque signature<0..2^16-1>;
-     *  } DigitallySigned;
-     */
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        md_alg = MBEDTLS_MD_NONE;
-        hashlen = 36;
-
-        /* For ECDSA, use SHA-1, not MD-5 + SHA-1 */
-        if( mbedtls_pk_can_do( peer_pk, MBEDTLS_PK_ECDSA ) )
-        {
-            hash_start += 16;
-            hashlen -= 16;
-            md_alg = MBEDTLS_MD_SHA1;
-        }
-    }
-    else
-#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 ||
-          MBEDTLS_SSL_PROTO_TLS1_1 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        if( i + 2 > ssl->in_hslen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
-        }
-
-        /*
-         * Hash
-         */
-        md_alg = mbedtls_ssl_md_alg_from_hash( ssl->in_msg[i] );
-
-        if( md_alg == MBEDTLS_MD_NONE || mbedtls_ssl_set_calc_verify_md( ssl, ssl->in_msg[i] ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "peer not adhering to requested sig_alg"
-                                " for verify message" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
-        }
-
-#if !defined(MBEDTLS_MD_SHA1)
-        if( MBEDTLS_MD_SHA1 == md_alg )
-            hash_start += 16;
-#endif
-
-        /* Info from md_alg will be used instead */
-        hashlen = 0;
-
-        i++;
-
-        /*
-         * Signature
-         */
-        if( ( pk_alg = mbedtls_ssl_pk_alg_from_sig( ssl->in_msg[i] ) )
-                        == MBEDTLS_PK_NONE )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "peer not adhering to requested sig_alg"
-                                " for verify message" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
-        }
-
-        /*
-         * Check the certificate's key type matches the signature alg
-         */
-        if( !mbedtls_pk_can_do( peer_pk, pk_alg ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "sig_alg doesn't match cert key" ) );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
-        }
-
-        i++;
-    }
-    else
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    if( i + 2 > ssl->in_hslen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
-    }
-
-    sig_len = ( ssl->in_msg[i] << 8 ) | ssl->in_msg[i+1];
-    i += 2;
-
-    if( i + sig_len != ssl->in_hslen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
-    }
-
-    /* Calculate hash and verify signature */
-    ssl->handshake->calc_verify( ssl, hash );
-
-    if( ( ret = mbedtls_pk_verify( peer_pk,
-                           md_alg, hash_start, hashlen,
-                           ssl->in_msg + i, sig_len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret );
-        return( ret );
-    }
-
-    mbedtls_ssl_update_handshake_status( ssl );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate verify" ) );
-
-    return( ret );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-static int ssl_write_new_session_ticket( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    size_t tlen;
-    uint32_t lifetime;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write new session ticket" ) );
-
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_NEW_SESSION_TICKET;
-
-    /*
-     * struct {
-     *     uint32 ticket_lifetime_hint;
-     *     opaque ticket<0..2^16-1>;
-     * } NewSessionTicket;
-     *
-     * 4  .  7   ticket_lifetime_hint (0 = unspecified)
-     * 8  .  9   ticket_len (n)
-     * 10 .  9+n ticket content
-     */
-
-    if( ( ret = ssl->conf->f_ticket_write( ssl->conf->p_ticket,
-                                ssl->session_negotiate,
-                                ssl->out_msg + 10,
-                                ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN,
-                                &tlen, &lifetime ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_ticket_write", ret );
-        tlen = 0;
-    }
-
-    ssl->out_msg[4] = ( lifetime >> 24 ) & 0xFF;
-    ssl->out_msg[5] = ( lifetime >> 16 ) & 0xFF;
-    ssl->out_msg[6] = ( lifetime >>  8 ) & 0xFF;
-    ssl->out_msg[7] = ( lifetime       ) & 0xFF;
-
-    ssl->out_msg[8] = (unsigned char)( ( tlen >> 8 ) & 0xFF );
-    ssl->out_msg[9] = (unsigned char)( ( tlen      ) & 0xFF );
-
-    ssl->out_msglen = 10 + tlen;
-
-    /*
-     * Morally equivalent to updating ssl->state, but NewSessionTicket and
-     * ChangeCipherSpec share the same state.
-     */
-    ssl->handshake->new_session_ticket = 0;
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write new session ticket" ) );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-/*
- * SSL handshake -- server side -- single step
- */
-int mbedtls_ssl_handshake_server_step( mbedtls_ssl_context *ssl )
-{
-    int ret = 0;
-
-    if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER || ssl->handshake == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "server state: %d", ssl->state ) );
-
-    if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-        return( ret );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING )
-    {
-        if( ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-            return( ret );
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    switch( ssl->state )
-    {
-        case MBEDTLS_SSL_HELLO_REQUEST:
-            ssl->state = MBEDTLS_SSL_CLIENT_HELLO;
-            break;
-
-        /*
-         *  <==   ClientHello
-         */
-        case MBEDTLS_SSL_CLIENT_HELLO:
-            ret = ssl_parse_client_hello( ssl );
-            break;
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-        case MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT:
-            return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED );
-#endif
-
-        /*
-         *  ==>   ServerHello
-         *        Certificate
-         *      ( ServerKeyExchange  )
-         *      ( CertificateRequest )
-         *        ServerHelloDone
-         */
-        case MBEDTLS_SSL_SERVER_HELLO:
-            ret = ssl_write_server_hello( ssl );
-            break;
-
-        case MBEDTLS_SSL_SERVER_CERTIFICATE:
-            ret = mbedtls_ssl_write_certificate( ssl );
-            break;
-
-        case MBEDTLS_SSL_SERVER_KEY_EXCHANGE:
-            ret = ssl_write_server_key_exchange( ssl );
-            break;
-
-        case MBEDTLS_SSL_CERTIFICATE_REQUEST:
-            ret = ssl_write_certificate_request( ssl );
-            break;
-
-        case MBEDTLS_SSL_SERVER_HELLO_DONE:
-            ret = ssl_write_server_hello_done( ssl );
-            break;
-
-        /*
-         *  <== ( Certificate/Alert  )
-         *        ClientKeyExchange
-         *      ( CertificateVerify  )
-         *        ChangeCipherSpec
-         *        Finished
-         */
-        case MBEDTLS_SSL_CLIENT_CERTIFICATE:
-            ret = mbedtls_ssl_parse_certificate( ssl );
-            break;
-
-        case MBEDTLS_SSL_CLIENT_KEY_EXCHANGE:
-            ret = ssl_parse_client_key_exchange( ssl );
-            break;
-
-        case MBEDTLS_SSL_CERTIFICATE_VERIFY:
-            ret = ssl_parse_certificate_verify( ssl );
-            break;
-
-        case MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC:
-            ret = mbedtls_ssl_parse_change_cipher_spec( ssl );
-            break;
-
-        case MBEDTLS_SSL_CLIENT_FINISHED:
-            ret = mbedtls_ssl_parse_finished( ssl );
-            break;
-
-        /*
-         *  ==> ( NewSessionTicket )
-         *        ChangeCipherSpec
-         *        Finished
-         */
-        case MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC:
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-            if( ssl->handshake->new_session_ticket != 0 )
-                ret = ssl_write_new_session_ticket( ssl );
-            else
-#endif
-                ret = mbedtls_ssl_write_change_cipher_spec( ssl );
-            break;
-
-        case MBEDTLS_SSL_SERVER_FINISHED:
-            ret = mbedtls_ssl_write_finished( ssl );
-            break;
-
-        case MBEDTLS_SSL_FLUSH_BUFFERS:
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "handshake: done" ) );
-            ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
-            break;
-
-        case MBEDTLS_SSL_HANDSHAKE_WRAPUP:
-            mbedtls_ssl_handshake_wrapup( ssl );
-            break;
-
-        default:
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) );
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    return( ret );
-}
-#endif /* MBEDTLS_SSL_SRV_C */
diff --git a/library/ssl_ticket.c b/library/ssl_ticket.c
deleted file mode 100644
index ed65bcd..0000000
--- a/library/ssl_ticket.c
+++ /dev/null
@@ -1,595 +0,0 @@
-/*
- *  TLS server tickets callbacks implementation
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_SSL_TICKET_C)
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
-
-#include "mbedtls/ssl_ticket.h"
-#include "mbedtls/platform_util.h"
-
-#include <string.h>
-
-/*
- * Initialze context
- */
-void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx )
-{
-    memset( ctx, 0, sizeof( mbedtls_ssl_ticket_context ) );
-
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_init( &ctx->mutex );
-#endif
-}
-
-#define MAX_KEY_BYTES 32    /* 256 bits */
-
-#define TICKET_KEY_NAME_BYTES    4
-#define TICKET_IV_BYTES         12
-#define TICKET_CRYPT_LEN_BYTES   2
-#define TICKET_AUTH_TAG_BYTES   16
-
-#define TICKET_MIN_LEN ( TICKET_KEY_NAME_BYTES  +        \
-                         TICKET_IV_BYTES        +        \
-                         TICKET_CRYPT_LEN_BYTES +        \
-                         TICKET_AUTH_TAG_BYTES )
-#define TICKET_ADD_DATA_LEN ( TICKET_KEY_NAME_BYTES  +        \
-                              TICKET_IV_BYTES        +        \
-                              TICKET_CRYPT_LEN_BYTES )
-
-/*
- * Generate/update a key
- */
-static int ssl_ticket_gen_key( mbedtls_ssl_ticket_context *ctx,
-                               unsigned char index )
-{
-    int ret;
-    unsigned char buf[MAX_KEY_BYTES];
-    mbedtls_ssl_ticket_key *key = ctx->keys + index;
-
-#if defined(MBEDTLS_HAVE_TIME)
-    key->generation_time = (uint32_t) mbedtls_time( NULL );
-#endif
-
-    if( ( ret = ctx->f_rng( ctx->p_rng, key->name, sizeof( key->name ) ) ) != 0 )
-        return( ret );
-
-    if( ( ret = ctx->f_rng( ctx->p_rng, buf, sizeof( buf ) ) ) != 0 )
-        return( ret );
-
-    /* With GCM and CCM, same context can encrypt & decrypt */
-    ret = mbedtls_cipher_setkey( &key->ctx, buf,
-                                 mbedtls_cipher_get_key_bitlen( &key->ctx ),
-                                 MBEDTLS_ENCRYPT );
-
-    mbedtls_platform_zeroize( buf, sizeof( buf ) );
-
-    return( ret );
-}
-
-/*
- * Rotate/generate keys if necessary
- */
-static int ssl_ticket_update_keys( mbedtls_ssl_ticket_context *ctx )
-{
-#if !defined(MBEDTLS_HAVE_TIME)
-    ((void) ctx);
-#else
-    if( ctx->ticket_lifetime != 0 )
-    {
-        uint32_t current_time = (uint32_t) mbedtls_time( NULL );
-        uint32_t key_time = ctx->keys[ctx->active].generation_time;
-
-        if( current_time >= key_time &&
-            current_time - key_time < ctx->ticket_lifetime )
-        {
-            return( 0 );
-        }
-
-        ctx->active = 1 - ctx->active;
-
-        return( ssl_ticket_gen_key( ctx, ctx->active ) );
-    }
-    else
-#endif /* MBEDTLS_HAVE_TIME */
-        return( 0 );
-}
-
-/*
- * Setup context for actual use
- */
-int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx,
-    int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
-    mbedtls_cipher_type_t cipher,
-    uint32_t lifetime )
-{
-    int ret;
-    const mbedtls_cipher_info_t *cipher_info;
-
-    ctx->f_rng = f_rng;
-    ctx->p_rng = p_rng;
-
-    ctx->ticket_lifetime = lifetime;
-
-    cipher_info = mbedtls_cipher_info_from_type( cipher);
-    if( cipher_info == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    if( cipher_info->mode != MBEDTLS_MODE_GCM &&
-        cipher_info->mode != MBEDTLS_MODE_CCM )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    if( cipher_info->key_bitlen > 8 * MAX_KEY_BYTES )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    ret = mbedtls_cipher_setup_psa( &ctx->keys[0].ctx,
-                                    cipher_info, TICKET_AUTH_TAG_BYTES );
-    if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-        return( ret );
-    /* We don't yet expect to support all ciphers through PSA,
-     * so allow fallback to ordinary mbedtls_cipher_setup(). */
-    if( ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_cipher_setup( &ctx->keys[0].ctx, cipher_info ) ) != 0 )
-        return( ret );
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    ret = mbedtls_cipher_setup_psa( &ctx->keys[1].ctx,
-                                    cipher_info, TICKET_AUTH_TAG_BYTES );
-    if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-        return( ret );
-    if( ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_cipher_setup( &ctx->keys[1].ctx, cipher_info ) ) != 0 )
-        return( ret );
-
-    if( ( ret = ssl_ticket_gen_key( ctx, 0 ) ) != 0 ||
-        ( ret = ssl_ticket_gen_key( ctx, 1 ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    return( 0 );
-}
-
-/*
- * Serialize a session in the following format:
- *
- * - If MBEDTLS_SSL_KEEP_PEER_CERTIFICATE is enabled:
- *    0       .   n-1   session structure, n = sizeof(mbedtls_ssl_session)
- *    n       .   n+2   peer_cert length = m (0 if no certificate)
- *    n+3     .   n+2+m peer cert ASN.1
- *
- * - If MBEDTLS_SSL_KEEP_PEER_CERTIFICATE is disabled:
- *    0       .   n-1   session structure, n = sizeof(mbedtls_ssl_session)
- *    n       .   n     length of peer certificate digest = k (0 if no digest)
- *    n+1     .   n+k   peer certificate digest (digest type encoded in session)
- */
-static int ssl_save_session( const mbedtls_ssl_session *session,
-                             unsigned char *buf, size_t buf_len,
-                             size_t *olen )
-{
-    unsigned char *p = buf;
-    size_t left = buf_len;
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    size_t cert_len;
-#else
-    size_t cert_digest_len;
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    if( left < sizeof( mbedtls_ssl_session ) )
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-
-    /* This also copies the values of pointer fields in the
-     * session to be serialized, but they'll be ignored when
-     * loading the session through ssl_load_session(). */
-    memcpy( p, session, sizeof( mbedtls_ssl_session ) );
-    p += sizeof( mbedtls_ssl_session );
-    left -= sizeof( mbedtls_ssl_session );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    if( session->peer_cert == NULL )
-        cert_len = 0;
-    else
-        cert_len = session->peer_cert->raw.len;
-
-    if( left < 3 + cert_len )
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-
-    *p++ = (unsigned char)( ( cert_len >> 16 ) & 0xFF );
-    *p++ = (unsigned char)( ( cert_len >>  8 ) & 0xFF );
-    *p++ = (unsigned char)( ( cert_len       ) & 0xFF );
-    left -= 3;
-
-    if( session->peer_cert != NULL )
-        memcpy( p, session->peer_cert->raw.p, cert_len );
-
-    p += cert_len;
-    left -= cert_len;
-#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( session->peer_cert_digest != NULL )
-        cert_digest_len = 0;
-    else
-        cert_digest_len = session->peer_cert_digest_len;
-
-    if( left < 1 + cert_digest_len )
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-
-    *p++ = (unsigned char) cert_digest_len;
-    left--;
-
-    if( session->peer_cert_digest != NULL )
-        memcpy( p, session->peer_cert_digest, cert_digest_len );
-
-    p    += cert_digest_len;
-    left -= cert_digest_len;
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    *olen = p - buf;
-
-    return( 0 );
-}
-
-/*
- * Unserialise session, see ssl_save_session()
- */
-static int ssl_load_session( mbedtls_ssl_session *session,
-                             const unsigned char *buf, size_t len )
-{
-    const unsigned char *p = buf;
-    const unsigned char * const end = buf + len;
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    size_t cert_len;
-#else
-    size_t cert_digest_len;
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    if( sizeof( mbedtls_ssl_session ) > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    memcpy( session, p, sizeof( mbedtls_ssl_session ) );
-    p += sizeof( mbedtls_ssl_session );
-
-    /* Non-NULL pointer fields of `session` are meaningless
-     * and potentially harmful. Zeroize them for safety. */
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    session->peer_cert = NULL;
-#else
-    session->peer_cert_digest = NULL;
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
-    session->ticket = NULL;
-#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    /* Deserialize CRT from the end of the ticket. */
-    if( 3 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    cert_len = ( p[0] << 16 ) | ( p[1] << 8 ) | p[2];
-    p += 3;
-
-    if( cert_len != 0 )
-    {
-        int ret;
-
-        if( cert_len > (size_t)( end - p ) )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-        session->peer_cert = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
-
-        if( session->peer_cert == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-
-        mbedtls_x509_crt_init( session->peer_cert );
-
-        if( ( ret = mbedtls_x509_crt_parse_der( session->peer_cert,
-                                                p, cert_len ) ) != 0 )
-        {
-            mbedtls_x509_crt_free( session->peer_cert );
-            mbedtls_free( session->peer_cert );
-            session->peer_cert = NULL;
-            return( ret );
-        }
-
-        p += cert_len;
-    }
-#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    /* Deserialize CRT digest from the end of the ticket. */
-    if( 1 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    cert_digest_len = (size_t) p[0];
-    p++;
-
-    if( cert_digest_len != 0 )
-    {
-        if( cert_digest_len > (size_t)( end - p ) ||
-            cert_digest_len != session->peer_cert_digest_len )
-        {
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-        }
-
-        session->peer_cert_digest = mbedtls_calloc( 1, cert_digest_len );
-        if( session->peer_cert_digest == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-
-        memcpy( session->peer_cert_digest, p, cert_digest_len );
-        p += cert_digest_len;
-    }
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    if( p != end )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    return( 0 );
-}
-
-/*
- * Create session ticket, with the following structure:
- *
- *    struct {
- *        opaque key_name[4];
- *        opaque iv[12];
- *        opaque encrypted_state<0..2^16-1>;
- *        opaque tag[16];
- *    } ticket;
- *
- * The key_name, iv, and length of encrypted_state are the additional
- * authenticated data.
- */
-
-int mbedtls_ssl_ticket_write( void *p_ticket,
-                              const mbedtls_ssl_session *session,
-                              unsigned char *start,
-                              const unsigned char *end,
-                              size_t *tlen,
-                              uint32_t *ticket_lifetime )
-{
-    int ret;
-    mbedtls_ssl_ticket_context *ctx = p_ticket;
-    mbedtls_ssl_ticket_key *key;
-    unsigned char *key_name = start;
-    unsigned char *iv = start + TICKET_KEY_NAME_BYTES;
-    unsigned char *state_len_bytes = iv + TICKET_IV_BYTES;
-    unsigned char *state = state_len_bytes + TICKET_CRYPT_LEN_BYTES;
-    unsigned char *tag;
-    size_t clear_len, ciph_len;
-
-    *tlen = 0;
-
-    if( ctx == NULL || ctx->f_rng == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    /* We need at least 4 bytes for key_name, 12 for IV, 2 for len 16 for tag,
-     * in addition to session itself, that will be checked when writing it. */
-    if( end - start < TICKET_MIN_LEN )
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-
-#if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
-        return( ret );
-#endif
-
-    if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 )
-        goto cleanup;
-
-    key = &ctx->keys[ctx->active];
-
-    *ticket_lifetime = ctx->ticket_lifetime;
-
-    memcpy( key_name, key->name, TICKET_KEY_NAME_BYTES );
-
-    if( ( ret = ctx->f_rng( ctx->p_rng, iv, TICKET_IV_BYTES ) ) != 0 )
-        goto cleanup;
-
-    /* Dump session state */
-    if( ( ret = ssl_save_session( session,
-                                  state, end - state, &clear_len ) ) != 0 ||
-        (unsigned long) clear_len > 65535 )
-    {
-         goto cleanup;
-    }
-    state_len_bytes[0] = ( clear_len >> 8 ) & 0xff;
-    state_len_bytes[1] = ( clear_len      ) & 0xff;
-
-    /* Encrypt and authenticate */
-    tag = state + clear_len;
-    if( ( ret = mbedtls_cipher_auth_encrypt( &key->ctx,
-                    iv, TICKET_IV_BYTES,
-                    /* Additional data: key name, IV and length */
-                    key_name, TICKET_ADD_DATA_LEN,
-                    state, clear_len, state, &ciph_len,
-                    tag, TICKET_AUTH_TAG_BYTES ) ) != 0 )
-    {
-        goto cleanup;
-    }
-    if( ciph_len != clear_len )
-    {
-        ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
-        goto cleanup;
-    }
-
-    *tlen = TICKET_MIN_LEN + ciph_len;
-
-cleanup:
-#if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
-        return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
-#endif
-
-    return( ret );
-}
-
-/*
- * Select key based on name
- */
-static mbedtls_ssl_ticket_key *ssl_ticket_select_key(
-        mbedtls_ssl_ticket_context *ctx,
-        const unsigned char name[4] )
-{
-    unsigned char i;
-
-    for( i = 0; i < sizeof( ctx->keys ) / sizeof( *ctx->keys ); i++ )
-        if( memcmp( name, ctx->keys[i].name, 4 ) == 0 )
-            return( &ctx->keys[i] );
-
-    return( NULL );
-}
-
-/*
- * Load session ticket (see mbedtls_ssl_ticket_write for structure)
- */
-int mbedtls_ssl_ticket_parse( void *p_ticket,
-                              mbedtls_ssl_session *session,
-                              unsigned char *buf,
-                              size_t len )
-{
-    int ret;
-    mbedtls_ssl_ticket_context *ctx = p_ticket;
-    mbedtls_ssl_ticket_key *key;
-    unsigned char *key_name = buf;
-    unsigned char *iv = buf + TICKET_KEY_NAME_BYTES;
-    unsigned char *enc_len_p = iv + TICKET_IV_BYTES;
-    unsigned char *ticket = enc_len_p + TICKET_CRYPT_LEN_BYTES;
-    unsigned char *tag;
-    size_t enc_len, clear_len;
-
-    if( ctx == NULL || ctx->f_rng == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    if( len < TICKET_MIN_LEN )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-#if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
-        return( ret );
-#endif
-
-    if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 )
-        goto cleanup;
-
-    enc_len = ( enc_len_p[0] << 8 ) | enc_len_p[1];
-    tag = ticket + enc_len;
-
-    if( len != TICKET_MIN_LEN + enc_len )
-    {
-        ret = MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        goto cleanup;
-    }
-
-    /* Select key */
-    if( ( key = ssl_ticket_select_key( ctx, key_name ) ) == NULL )
-    {
-        /* We can't know for sure but this is a likely option unless we're
-         * under attack - this is only informative anyway */
-        ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
-        goto cleanup;
-    }
-
-    /* Decrypt and authenticate */
-    if( ( ret = mbedtls_cipher_auth_decrypt( &key->ctx,
-                    iv, TICKET_IV_BYTES,
-                    /* Additional data: key name, IV and length */
-                    key_name, TICKET_ADD_DATA_LEN,
-                    ticket, enc_len,
-                    ticket, &clear_len,
-                    tag, TICKET_AUTH_TAG_BYTES ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED )
-            ret = MBEDTLS_ERR_SSL_INVALID_MAC;
-
-        goto cleanup;
-    }
-    if( clear_len != enc_len )
-    {
-        ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
-        goto cleanup;
-    }
-
-    /* Actually load session */
-    if( ( ret = ssl_load_session( session, ticket, clear_len ) ) != 0 )
-        goto cleanup;
-
-#if defined(MBEDTLS_HAVE_TIME)
-    {
-        /* Check for expiration */
-        mbedtls_time_t current_time = mbedtls_time( NULL );
-
-        if( current_time < session->start ||
-            (uint32_t)( current_time - session->start ) > ctx->ticket_lifetime )
-        {
-            ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
-            goto cleanup;
-        }
-    }
-#endif
-
-cleanup:
-#if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
-        return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
-#endif
-
-    return( ret );
-}
-
-/*
- * Free context
- */
-void mbedtls_ssl_ticket_free( mbedtls_ssl_ticket_context *ctx )
-{
-    mbedtls_cipher_free( &ctx->keys[0].ctx );
-    mbedtls_cipher_free( &ctx->keys[1].ctx );
-
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_free( &ctx->mutex );
-#endif
-
-    mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ssl_ticket_context ) );
-}
-
-#endif /* MBEDTLS_SSL_TICKET_C */
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
deleted file mode 100644
index abe2450..0000000
--- a/library/ssl_tls.c
+++ /dev/null
@@ -1,10634 +0,0 @@
-/*
- *  SSLv3/TLSv1 shared functions
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- *  The SSL 3.0 specification was drafted by Netscape in 1996,
- *  and became an IETF standard in 1999.
- *
- *  http://wp.netscape.com/eng/ssl3/
- *  http://www.ietf.org/rfc/rfc2246.txt
- *  http://www.ietf.org/rfc/rfc4346.txt
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_SSL_TLS_C)
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
-
-#include "mbedtls/debug.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/ssl_internal.h"
-#include "mbedtls/platform_util.h"
-
-#include <string.h>
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "mbedtls/psa_util.h"
-#include "psa/crypto.h"
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#include "mbedtls/oid.h"
-#endif
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "mbedtls/psa_util.h"
-#endif
-
-static void ssl_reset_in_out_pointers( mbedtls_ssl_context *ssl );
-static uint32_t ssl_get_hs_total_len( mbedtls_ssl_context const *ssl );
-
-/* Length of the "epoch" field in the record header */
-static inline size_t ssl_ep_len( const mbedtls_ssl_context *ssl )
-{
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        return( 2 );
-#else
-    ((void) ssl);
-#endif
-    return( 0 );
-}
-
-/*
- * Start a timer.
- * Passing millisecs = 0 cancels a running timer.
- */
-static void ssl_set_timer( mbedtls_ssl_context *ssl, uint32_t millisecs )
-{
-    if( ssl->f_set_timer == NULL )
-        return;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "set_timer to %d ms", (int) millisecs ) );
-    ssl->f_set_timer( ssl->p_timer, millisecs / 4, millisecs );
-}
-
-/*
- * Return -1 is timer is expired, 0 if it isn't.
- */
-static int ssl_check_timer( mbedtls_ssl_context *ssl )
-{
-    if( ssl->f_get_timer == NULL )
-        return( 0 );
-
-    if( ssl->f_get_timer( ssl->p_timer ) == 2 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "timer expired" ) );
-        return( -1 );
-    }
-
-    return( 0 );
-}
-
-static void ssl_update_out_pointers( mbedtls_ssl_context *ssl,
-                                     mbedtls_ssl_transform *transform );
-static void ssl_update_in_pointers( mbedtls_ssl_context *ssl,
-                                    mbedtls_ssl_transform *transform );
-
-#define SSL_DONT_FORCE_FLUSH 0
-#define SSL_FORCE_FLUSH      1
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-
-/* Forward declarations for functions related to message buffering. */
-static void ssl_buffering_free( mbedtls_ssl_context *ssl );
-static void ssl_buffering_free_slot( mbedtls_ssl_context *ssl,
-                                     uint8_t slot );
-static void ssl_free_buffered_record( mbedtls_ssl_context *ssl );
-static int ssl_load_buffered_message( mbedtls_ssl_context *ssl );
-static int ssl_load_buffered_record( mbedtls_ssl_context *ssl );
-static int ssl_buffer_message( mbedtls_ssl_context *ssl );
-static int ssl_buffer_future_record( mbedtls_ssl_context *ssl );
-static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl );
-
-static size_t ssl_get_current_mtu( const mbedtls_ssl_context *ssl );
-static size_t ssl_get_maximum_datagram_size( mbedtls_ssl_context const *ssl )
-{
-    size_t mtu = ssl_get_current_mtu( ssl );
-
-    if( mtu != 0 && mtu < MBEDTLS_SSL_OUT_BUFFER_LEN )
-        return( mtu );
-
-    return( MBEDTLS_SSL_OUT_BUFFER_LEN );
-}
-
-static int ssl_get_remaining_space_in_datagram( mbedtls_ssl_context const *ssl )
-{
-    size_t const bytes_written = ssl->out_left;
-    size_t const mtu           = ssl_get_maximum_datagram_size( ssl );
-
-    /* Double-check that the write-index hasn't gone
-     * past what we can transmit in a single datagram. */
-    if( bytes_written > mtu )
-    {
-        /* Should never happen... */
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    return( (int) ( mtu - bytes_written ) );
-}
-
-static int ssl_get_remaining_payload_in_datagram( mbedtls_ssl_context const *ssl )
-{
-    int ret;
-    size_t remaining, expansion;
-    size_t max_len = MBEDTLS_SSL_OUT_CONTENT_LEN;
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    const size_t mfl = mbedtls_ssl_get_max_frag_len( ssl );
-
-    if( max_len > mfl )
-        max_len = mfl;
-
-    /* By the standard (RFC 6066 Sect. 4), the MFL extension
-     * only limits the maximum record payload size, so in theory
-     * we would be allowed to pack multiple records of payload size
-     * MFL into a single datagram. However, this would mean that there's
-     * no way to explicitly communicate MTU restrictions to the peer.
-     *
-     * The following reduction of max_len makes sure that we never
-     * write datagrams larger than MFL + Record Expansion Overhead.
-     */
-    if( max_len <= ssl->out_left )
-        return( 0 );
-
-    max_len -= ssl->out_left;
-#endif
-
-    ret = ssl_get_remaining_space_in_datagram( ssl );
-    if( ret < 0 )
-        return( ret );
-    remaining = (size_t) ret;
-
-    ret = mbedtls_ssl_get_record_expansion( ssl );
-    if( ret < 0 )
-        return( ret );
-    expansion = (size_t) ret;
-
-    if( remaining <= expansion )
-        return( 0 );
-
-    remaining -= expansion;
-    if( remaining >= max_len )
-        remaining = max_len;
-
-    return( (int) remaining );
-}
-
-/*
- * Double the retransmit timeout value, within the allowed range,
- * returning -1 if the maximum value has already been reached.
- */
-static int ssl_double_retransmit_timeout( mbedtls_ssl_context *ssl )
-{
-    uint32_t new_timeout;
-
-    if( ssl->handshake->retransmit_timeout >= ssl->conf->hs_timeout_max )
-        return( -1 );
-
-    /* Implement the final paragraph of RFC 6347 section 4.1.1.1
-     * in the following way: after the initial transmission and a first
-     * retransmission, back off to a temporary estimated MTU of 508 bytes.
-     * This value is guaranteed to be deliverable (if not guaranteed to be
-     * delivered) of any compliant IPv4 (and IPv6) network, and should work
-     * on most non-IP stacks too. */
-    if( ssl->handshake->retransmit_timeout != ssl->conf->hs_timeout_min )
-    {
-        ssl->handshake->mtu = 508;
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "mtu autoreduction to %d bytes", ssl->handshake->mtu ) );
-    }
-
-    new_timeout = 2 * ssl->handshake->retransmit_timeout;
-
-    /* Avoid arithmetic overflow and range overflow */
-    if( new_timeout < ssl->handshake->retransmit_timeout ||
-        new_timeout > ssl->conf->hs_timeout_max )
-    {
-        new_timeout = ssl->conf->hs_timeout_max;
-    }
-
-    ssl->handshake->retransmit_timeout = new_timeout;
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %d millisecs",
-                        ssl->handshake->retransmit_timeout ) );
-
-    return( 0 );
-}
-
-static void ssl_reset_retransmit_timeout( mbedtls_ssl_context *ssl )
-{
-    ssl->handshake->retransmit_timeout = ssl->conf->hs_timeout_min;
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %d millisecs",
-                        ssl->handshake->retransmit_timeout ) );
-}
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-/*
- * Convert max_fragment_length codes to length.
- * RFC 6066 says:
- *    enum{
- *        2^9(1), 2^10(2), 2^11(3), 2^12(4), (255)
- *    } MaxFragmentLength;
- * and we add 0 -> extension unused
- */
-static unsigned int ssl_mfl_code_to_length( int mfl )
-{
-    switch( mfl )
-    {
-    case MBEDTLS_SSL_MAX_FRAG_LEN_NONE:
-        return ( MBEDTLS_TLS_EXT_ADV_CONTENT_LEN );
-    case MBEDTLS_SSL_MAX_FRAG_LEN_512:
-        return 512;
-    case MBEDTLS_SSL_MAX_FRAG_LEN_1024:
-        return 1024;
-    case MBEDTLS_SSL_MAX_FRAG_LEN_2048:
-        return 2048;
-    case MBEDTLS_SSL_MAX_FRAG_LEN_4096:
-        return 4096;
-    default:
-        return ( MBEDTLS_TLS_EXT_ADV_CONTENT_LEN );
-    }
-}
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst,
-                              const mbedtls_ssl_session *src )
-{
-    mbedtls_ssl_session_free( dst );
-    memcpy( dst, src, sizeof( mbedtls_ssl_session ) );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    if( src->peer_cert != NULL )
-    {
-        int ret;
-
-        dst->peer_cert = mbedtls_calloc( 1, sizeof(mbedtls_x509_crt) );
-        if( dst->peer_cert == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-
-        mbedtls_x509_crt_init( dst->peer_cert );
-
-        if( ( ret = mbedtls_x509_crt_parse_der( dst->peer_cert, src->peer_cert->raw.p,
-                                        src->peer_cert->raw.len ) ) != 0 )
-        {
-            mbedtls_free( dst->peer_cert );
-            dst->peer_cert = NULL;
-            return( ret );
-        }
-    }
-#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( src->peer_cert_digest != NULL )
-    {
-        dst->peer_cert_digest =
-            mbedtls_calloc( 1, src->peer_cert_digest_len );
-        if( dst->peer_cert_digest == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-
-        memcpy( dst->peer_cert_digest, src->peer_cert_digest,
-                src->peer_cert_digest_len );
-        dst->peer_cert_digest_type = src->peer_cert_digest_type;
-        dst->peer_cert_digest_len = src->peer_cert_digest_len;
-    }
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
-    if( src->ticket != NULL )
-    {
-        dst->ticket = mbedtls_calloc( 1, src->ticket_len );
-        if( dst->ticket == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-
-        memcpy( dst->ticket, src->ticket, src->ticket_len );
-    }
-#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-int (*mbedtls_ssl_hw_record_init)( mbedtls_ssl_context *ssl,
-                     const unsigned char *key_enc, const unsigned char *key_dec,
-                     size_t keylen,
-                     const unsigned char *iv_enc,  const unsigned char *iv_dec,
-                     size_t ivlen,
-                     const unsigned char *mac_enc, const unsigned char *mac_dec,
-                     size_t maclen ) = NULL;
-int (*mbedtls_ssl_hw_record_activate)( mbedtls_ssl_context *ssl, int direction) = NULL;
-int (*mbedtls_ssl_hw_record_reset)( mbedtls_ssl_context *ssl ) = NULL;
-int (*mbedtls_ssl_hw_record_write)( mbedtls_ssl_context *ssl ) = NULL;
-int (*mbedtls_ssl_hw_record_read)( mbedtls_ssl_context *ssl ) = NULL;
-int (*mbedtls_ssl_hw_record_finish)( mbedtls_ssl_context *ssl ) = NULL;
-#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
-
-/*
- * Key material generation
- */
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-static int ssl3_prf( const unsigned char *secret, size_t slen,
-                     const char *label,
-                     const unsigned char *random, size_t rlen,
-                     unsigned char *dstbuf, size_t dlen )
-{
-    int ret = 0;
-    size_t i;
-    mbedtls_md5_context md5;
-    mbedtls_sha1_context sha1;
-    unsigned char padding[16];
-    unsigned char sha1sum[20];
-    ((void)label);
-
-    mbedtls_md5_init(  &md5  );
-    mbedtls_sha1_init( &sha1 );
-
-    /*
-     *  SSLv3:
-     *    block =
-     *      MD5( secret + SHA1( 'A'    + secret + random ) ) +
-     *      MD5( secret + SHA1( 'BB'   + secret + random ) ) +
-     *      MD5( secret + SHA1( 'CCC'  + secret + random ) ) +
-     *      ...
-     */
-    for( i = 0; i < dlen / 16; i++ )
-    {
-        memset( padding, (unsigned char) ('A' + i), 1 + i );
-
-        if( ( ret = mbedtls_sha1_starts_ret( &sha1 ) ) != 0 )
-            goto exit;
-        if( ( ret = mbedtls_sha1_update_ret( &sha1, padding, 1 + i ) ) != 0 )
-            goto exit;
-        if( ( ret = mbedtls_sha1_update_ret( &sha1, secret, slen ) ) != 0 )
-            goto exit;
-        if( ( ret = mbedtls_sha1_update_ret( &sha1, random, rlen ) ) != 0 )
-            goto exit;
-        if( ( ret = mbedtls_sha1_finish_ret( &sha1, sha1sum ) ) != 0 )
-            goto exit;
-
-        if( ( ret = mbedtls_md5_starts_ret( &md5 ) ) != 0 )
-            goto exit;
-        if( ( ret = mbedtls_md5_update_ret( &md5, secret, slen ) ) != 0 )
-            goto exit;
-        if( ( ret = mbedtls_md5_update_ret( &md5, sha1sum, 20 ) ) != 0 )
-            goto exit;
-        if( ( ret = mbedtls_md5_finish_ret( &md5, dstbuf + i * 16 ) ) != 0 )
-            goto exit;
-    }
-
-exit:
-    mbedtls_md5_free(  &md5  );
-    mbedtls_sha1_free( &sha1 );
-
-    mbedtls_platform_zeroize( padding, sizeof( padding ) );
-    mbedtls_platform_zeroize( sha1sum, sizeof( sha1sum ) );
-
-    return( ret );
-}
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
-static int tls1_prf( const unsigned char *secret, size_t slen,
-                     const char *label,
-                     const unsigned char *random, size_t rlen,
-                     unsigned char *dstbuf, size_t dlen )
-{
-    size_t nb, hs;
-    size_t i, j, k;
-    const unsigned char *S1, *S2;
-    unsigned char tmp[128];
-    unsigned char h_i[20];
-    const mbedtls_md_info_t *md_info;
-    mbedtls_md_context_t md_ctx;
-    int ret;
-
-    mbedtls_md_init( &md_ctx );
-
-    if( sizeof( tmp ) < 20 + strlen( label ) + rlen )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    hs = ( slen + 1 ) / 2;
-    S1 = secret;
-    S2 = secret + slen - hs;
-
-    nb = strlen( label );
-    memcpy( tmp + 20, label, nb );
-    memcpy( tmp + 20 + nb, random, rlen );
-    nb += rlen;
-
-    /*
-     * First compute P_md5(secret,label+random)[0..dlen]
-     */
-    if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_MD5 ) ) == NULL )
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-
-    if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
-        return( ret );
-
-    mbedtls_md_hmac_starts( &md_ctx, S1, hs );
-    mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb );
-    mbedtls_md_hmac_finish( &md_ctx, 4 + tmp );
-
-    for( i = 0; i < dlen; i += 16 )
-    {
-        mbedtls_md_hmac_reset ( &md_ctx );
-        mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 + nb );
-        mbedtls_md_hmac_finish( &md_ctx, h_i );
-
-        mbedtls_md_hmac_reset ( &md_ctx );
-        mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 );
-        mbedtls_md_hmac_finish( &md_ctx, 4 + tmp );
-
-        k = ( i + 16 > dlen ) ? dlen % 16 : 16;
-
-        for( j = 0; j < k; j++ )
-            dstbuf[i + j]  = h_i[j];
-    }
-
-    mbedtls_md_free( &md_ctx );
-
-    /*
-     * XOR out with P_sha1(secret,label+random)[0..dlen]
-     */
-    if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ) ) == NULL )
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-
-    if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
-        return( ret );
-
-    mbedtls_md_hmac_starts( &md_ctx, S2, hs );
-    mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb );
-    mbedtls_md_hmac_finish( &md_ctx, tmp );
-
-    for( i = 0; i < dlen; i += 20 )
-    {
-        mbedtls_md_hmac_reset ( &md_ctx );
-        mbedtls_md_hmac_update( &md_ctx, tmp, 20 + nb );
-        mbedtls_md_hmac_finish( &md_ctx, h_i );
-
-        mbedtls_md_hmac_reset ( &md_ctx );
-        mbedtls_md_hmac_update( &md_ctx, tmp, 20 );
-        mbedtls_md_hmac_finish( &md_ctx, tmp );
-
-        k = ( i + 20 > dlen ) ? dlen % 20 : 20;
-
-        for( j = 0; j < k; j++ )
-            dstbuf[i + j] = (unsigned char)( dstbuf[i + j] ^ h_i[j] );
-    }
-
-    mbedtls_md_free( &md_ctx );
-
-    mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
-    mbedtls_platform_zeroize( h_i, sizeof( h_i ) );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_PROTO_TLS1) || MBEDTLS_SSL_PROTO_TLS1_1 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-static int tls_prf_generic( mbedtls_md_type_t md_type,
-                            const unsigned char *secret, size_t slen,
-                            const char *label,
-                            const unsigned char *random, size_t rlen,
-                            unsigned char *dstbuf, size_t dlen )
-{
-    psa_status_t status;
-    psa_algorithm_t alg;
-    psa_key_policy_t policy;
-    psa_key_handle_t master_slot;
-    psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
-
-    if( ( status = psa_allocate_key( &master_slot ) ) != PSA_SUCCESS )
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-
-    if( md_type == MBEDTLS_MD_SHA384 )
-        alg = PSA_ALG_TLS12_PRF(PSA_ALG_SHA_384);
-    else
-        alg = PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256);
-
-    policy = psa_key_policy_init();
-    psa_key_policy_set_usage( &policy,
-                              PSA_KEY_USAGE_DERIVE,
-                              alg );
-    status = psa_set_key_policy( master_slot, &policy );
-    if( status != PSA_SUCCESS )
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-
-    status = psa_import_key( master_slot, PSA_KEY_TYPE_DERIVE, secret, slen );
-    if( status != PSA_SUCCESS )
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-
-    status = psa_key_derivation( &generator,
-                                 master_slot, alg,
-                                 random, rlen,
-                                 (unsigned char const *) label,
-                                 (size_t) strlen( label ),
-                                 dlen );
-    if( status != PSA_SUCCESS )
-    {
-        psa_generator_abort( &generator );
-        psa_destroy_key( master_slot );
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-    }
-
-    status = psa_generator_read( &generator, dstbuf, dlen );
-    if( status != PSA_SUCCESS )
-    {
-        psa_generator_abort( &generator );
-        psa_destroy_key( master_slot );
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-    }
-
-    status = psa_generator_abort( &generator );
-    if( status != PSA_SUCCESS )
-    {
-        psa_destroy_key( master_slot );
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-    }
-
-    status = psa_destroy_key( master_slot );
-    if( status != PSA_SUCCESS )
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-
-    return( 0 );
-}
-
-#else /* MBEDTLS_USE_PSA_CRYPTO */
-
-static int tls_prf_generic( mbedtls_md_type_t md_type,
-                            const unsigned char *secret, size_t slen,
-                            const char *label,
-                            const unsigned char *random, size_t rlen,
-                            unsigned char *dstbuf, size_t dlen )
-{
-    size_t nb;
-    size_t i, j, k, md_len;
-    unsigned char tmp[128];
-    unsigned char h_i[MBEDTLS_MD_MAX_SIZE];
-    const mbedtls_md_info_t *md_info;
-    mbedtls_md_context_t md_ctx;
-    int ret;
-
-    mbedtls_md_init( &md_ctx );
-
-    if( ( md_info = mbedtls_md_info_from_type( md_type ) ) == NULL )
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-
-    md_len = mbedtls_md_get_size( md_info );
-
-    if( sizeof( tmp ) < md_len + strlen( label ) + rlen )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    nb = strlen( label );
-    memcpy( tmp + md_len, label, nb );
-    memcpy( tmp + md_len + nb, random, rlen );
-    nb += rlen;
-
-    /*
-     * Compute P_<hash>(secret, label + random)[0..dlen]
-     */
-    if ( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
-        return( ret );
-
-    mbedtls_md_hmac_starts( &md_ctx, secret, slen );
-    mbedtls_md_hmac_update( &md_ctx, tmp + md_len, nb );
-    mbedtls_md_hmac_finish( &md_ctx, tmp );
-
-    for( i = 0; i < dlen; i += md_len )
-    {
-        mbedtls_md_hmac_reset ( &md_ctx );
-        mbedtls_md_hmac_update( &md_ctx, tmp, md_len + nb );
-        mbedtls_md_hmac_finish( &md_ctx, h_i );
-
-        mbedtls_md_hmac_reset ( &md_ctx );
-        mbedtls_md_hmac_update( &md_ctx, tmp, md_len );
-        mbedtls_md_hmac_finish( &md_ctx, tmp );
-
-        k = ( i + md_len > dlen ) ? dlen % md_len : md_len;
-
-        for( j = 0; j < k; j++ )
-            dstbuf[i + j]  = h_i[j];
-    }
-
-    mbedtls_md_free( &md_ctx );
-
-    mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
-    mbedtls_platform_zeroize( h_i, sizeof( h_i ) );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-#if defined(MBEDTLS_SHA256_C)
-static int tls_prf_sha256( const unsigned char *secret, size_t slen,
-                           const char *label,
-                           const unsigned char *random, size_t rlen,
-                           unsigned char *dstbuf, size_t dlen )
-{
-    return( tls_prf_generic( MBEDTLS_MD_SHA256, secret, slen,
-                             label, random, rlen, dstbuf, dlen ) );
-}
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-static int tls_prf_sha384( const unsigned char *secret, size_t slen,
-                           const char *label,
-                           const unsigned char *random, size_t rlen,
-                           unsigned char *dstbuf, size_t dlen )
-{
-    return( tls_prf_generic( MBEDTLS_MD_SHA384, secret, slen,
-                             label, random, rlen, dstbuf, dlen ) );
-}
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-static void ssl_update_checksum_start( mbedtls_ssl_context *, const unsigned char *, size_t );
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *, const unsigned char *, size_t );
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-static void ssl_calc_verify_ssl( mbedtls_ssl_context *, unsigned char * );
-static void ssl_calc_finished_ssl( mbedtls_ssl_context *, unsigned char *, int );
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
-static void ssl_calc_verify_tls( mbedtls_ssl_context *, unsigned char * );
-static void ssl_calc_finished_tls( mbedtls_ssl_context *, unsigned char *, int );
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA256_C)
-static void ssl_update_checksum_sha256( mbedtls_ssl_context *, const unsigned char *, size_t );
-static void ssl_calc_verify_tls_sha256( mbedtls_ssl_context *,unsigned char * );
-static void ssl_calc_finished_tls_sha256( mbedtls_ssl_context *,unsigned char *, int );
-#endif
-
-#if defined(MBEDTLS_SHA512_C)
-static void ssl_update_checksum_sha384( mbedtls_ssl_context *, const unsigned char *, size_t );
-static void ssl_calc_verify_tls_sha384( mbedtls_ssl_context *, unsigned char * );
-static void ssl_calc_finished_tls_sha384( mbedtls_ssl_context *, unsigned char *, int );
-#endif
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) && \
-    defined(MBEDTLS_USE_PSA_CRYPTO)
-static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl )
-{
-    if( ssl->conf->f_psk != NULL )
-    {
-        /* If we've used a callback to select the PSK,
-         * the static configuration is irrelevant. */
-        if( ssl->handshake->psk_opaque != 0 )
-            return( 1 );
-
-        return( 0 );
-    }
-
-    if( ssl->conf->psk_opaque != 0 )
-        return( 1 );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_USE_PSA_CRYPTO &&
-          MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl )
-{
-    int ret = 0;
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    int psa_fallthrough;
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    unsigned char tmp[64];
-    unsigned char keyblk[256];
-    unsigned char *key1;
-    unsigned char *key2;
-    unsigned char *mac_enc;
-    unsigned char *mac_dec;
-    size_t mac_key_len;
-    size_t iv_copy_len;
-    size_t taglen = 0;
-    const mbedtls_cipher_info_t *cipher_info;
-    const mbedtls_md_info_t *md_info;
-
-    /* cf. RFC 5246, Section 8.1:
-     * "The master secret is always exactly 48 bytes in length." */
-    size_t const master_secret_len = 48;
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    unsigned char session_hash[48];
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-
-    mbedtls_ssl_session *session = ssl->session_negotiate;
-    mbedtls_ssl_transform *transform = ssl->transform_negotiate;
-    mbedtls_ssl_handshake_params *handshake = ssl->handshake;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> derive keys" ) );
-
-    cipher_info = mbedtls_cipher_info_from_type( transform->ciphersuite_info->cipher );
-    if( cipher_info == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "cipher info for %d not found",
-                            transform->ciphersuite_info->cipher ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    md_info = mbedtls_md_info_from_type( transform->ciphersuite_info->mac );
-    if( md_info == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "mbedtls_md info for %d not found",
-                            transform->ciphersuite_info->mac ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    /*
-     * Set appropriate PRF function and other SSL / TLS / TLS1.2 functions
-     */
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        handshake->tls_prf = ssl3_prf;
-        handshake->calc_verify = ssl_calc_verify_ssl;
-        handshake->calc_finished = ssl_calc_finished_ssl;
-    }
-    else
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        handshake->tls_prf = tls1_prf;
-        handshake->calc_verify = ssl_calc_verify_tls;
-        handshake->calc_finished = ssl_calc_finished_tls;
-    }
-    else
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA512_C)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 &&
-        transform->ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
-    {
-        handshake->tls_prf = tls_prf_sha384;
-        handshake->calc_verify = ssl_calc_verify_tls_sha384;
-        handshake->calc_finished = ssl_calc_finished_tls_sha384;
-    }
-    else
-#endif
-#if defined(MBEDTLS_SHA256_C)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        handshake->tls_prf = tls_prf_sha256;
-        handshake->calc_verify = ssl_calc_verify_tls_sha256;
-        handshake->calc_finished = ssl_calc_finished_tls_sha256;
-    }
-    else
-#endif
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    /*
-     * SSLv3:
-     *   master =
-     *     MD5( premaster + SHA1( 'A'   + premaster + randbytes ) ) +
-     *     MD5( premaster + SHA1( 'BB'  + premaster + randbytes ) ) +
-     *     MD5( premaster + SHA1( 'CCC' + premaster + randbytes ) )
-     *
-     * TLSv1+:
-     *   master = PRF( premaster, "master secret", randbytes )[0..47]
-     */
-    if( handshake->resume != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "no premaster (session resumed)" ) );
-    }
-    else
-    {
-        /* The label for the KDF used for key expansion.
-         * This is either "master secret" or "extended master secret"
-         * depending on whether the Extended Master Secret extension
-         * is used. */
-        char const *lbl = "master secret";
-
-        /* The salt for the KDF used for key expansion.
-         * - If the Extended Master Secret extension is not used,
-         *   this is ClientHello.Random + ServerHello.Random
-         *   (see Sect. 8.1 in RFC 5246).
-         * - If the Extended Master Secret extension is used,
-         *   this is the transcript of the handshake so far.
-         *   (see Sect. 4 in RFC 7627). */
-        unsigned char const *salt = handshake->randbytes;
-        size_t salt_len = 64;
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-        const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-            ssl->transform_negotiate->ciphersuite_info;
-        mbedtls_md_type_t const md_type = ciphersuite_info->mac;
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-        if( ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "using extended master secret" ) );
-
-            lbl  = "extended master secret";
-            salt = session_hash;
-            ssl->handshake->calc_verify( ssl, session_hash );
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-            if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-            {
-#if defined(MBEDTLS_SHA512_C)
-                if( md_type == MBEDTLS_MD_SHA384 )
-                    salt_len = 48;
-                else
-#endif /* MBEDTLS_SHA512_C */
-                    salt_len = 32;
-            }
-            else
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-                salt_len = 36;
-
-            MBEDTLS_SSL_DEBUG_BUF( 3, "session hash", session_hash, salt_len );
-        }
-#endif /* MBEDTLS_SSL_EXTENDED_MS_ENABLED */
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO) &&          \
-    defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-        if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK &&
-            ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 &&
-            ssl_use_opaque_psk( ssl ) == 1 )
-        {
-            /* Perform PSK-to-MS expansion in a single step. */
-            psa_status_t status;
-            psa_algorithm_t alg;
-            psa_crypto_generator_t generator = PSA_CRYPTO_GENERATOR_INIT;
-            psa_key_handle_t psk;
-
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "perform PSA-based PSK-to-MS expansion" ) );
-
-            psk = ssl->conf->psk_opaque;
-            if( ssl->handshake->psk_opaque != 0 )
-                psk = ssl->handshake->psk_opaque;
-
-            if( md_type == MBEDTLS_MD_SHA384 )
-                alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_384);
-            else
-                alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_256);
-
-            status = psa_key_derivation( &generator, psk, alg,
-                                         salt, salt_len,
-                                         (unsigned char const *) lbl,
-                                         (size_t) strlen( lbl ),
-                                         master_secret_len );
-            if( status != PSA_SUCCESS )
-            {
-                psa_generator_abort( &generator );
-                return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-            }
-
-            status = psa_generator_read( &generator, session->master,
-                                         master_secret_len );
-            if( status != PSA_SUCCESS )
-            {
-                psa_generator_abort( &generator );
-                return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-            }
-
-            status = psa_generator_abort( &generator );
-            if( status != PSA_SUCCESS )
-                return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-        else
-#endif
-        {
-            ret = handshake->tls_prf( handshake->premaster, handshake->pmslen,
-                                      lbl, salt, salt_len,
-                                      session->master,
-                                      master_secret_len );
-            if( ret != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret );
-                return( ret );
-            }
-
-            MBEDTLS_SSL_DEBUG_BUF( 3, "premaster secret",
-                                   handshake->premaster,
-                                   handshake->pmslen );
-
-            mbedtls_platform_zeroize( handshake->premaster,
-                                      sizeof(handshake->premaster) );
-        }
-    }
-
-    /*
-     * Swap the client and server random values.
-     */
-    memcpy( tmp, handshake->randbytes, 64 );
-    memcpy( handshake->randbytes, tmp + 32, 32 );
-    memcpy( handshake->randbytes + 32, tmp, 32 );
-    mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
-
-    /*
-     *  SSLv3:
-     *    key block =
-     *      MD5( master + SHA1( 'A'    + master + randbytes ) ) +
-     *      MD5( master + SHA1( 'BB'   + master + randbytes ) ) +
-     *      MD5( master + SHA1( 'CCC'  + master + randbytes ) ) +
-     *      MD5( master + SHA1( 'DDDD' + master + randbytes ) ) +
-     *      ...
-     *
-     *  TLSv1:
-     *    key block = PRF( master, "key expansion", randbytes )
-     */
-    ret = handshake->tls_prf( session->master, 48, "key expansion",
-                              handshake->randbytes, 64, keyblk, 256 );
-    if( ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret );
-        return( ret );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite = %s",
-                   mbedtls_ssl_get_ciphersuite_name( session->ciphersuite ) ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "master secret", session->master, 48 );
-    MBEDTLS_SSL_DEBUG_BUF( 4, "random bytes", handshake->randbytes, 64 );
-    MBEDTLS_SSL_DEBUG_BUF( 4, "key block", keyblk, 256 );
-
-    mbedtls_platform_zeroize( handshake->randbytes,
-                              sizeof( handshake->randbytes ) );
-
-    /*
-     * Determine the appropriate key, IV and MAC length.
-     */
-
-    transform->keylen = cipher_info->key_bitlen / 8;
-
-    if( cipher_info->mode == MBEDTLS_MODE_GCM ||
-        cipher_info->mode == MBEDTLS_MODE_CCM ||
-        cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY )
-    {
-        size_t explicit_ivlen;
-
-        transform->maclen = 0;
-        mac_key_len = 0;
-
-        /* All modes haves 96-bit IVs;
-         * GCM and CCM has 4 implicit and 8 explicit bytes
-         * ChachaPoly has all 12 bytes implicit
-         */
-        transform->ivlen = 12;
-        if( cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY )
-            transform->fixed_ivlen = 12;
-        else
-            transform->fixed_ivlen = 4;
-
-        /* All modes have 128-bit tags, except CCM_8 (ciphersuite flag) */
-        taglen = transform->ciphersuite_info->flags &
-                  MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16;
-
-
-        /* Minimum length of encrypted record */
-        explicit_ivlen = transform->ivlen - transform->fixed_ivlen;
-        transform->minlen = explicit_ivlen + taglen;
-    }
-    else
-    {
-        /* Initialize HMAC contexts */
-        if( ( ret = mbedtls_md_setup( &transform->md_ctx_enc, md_info, 1 ) ) != 0 ||
-            ( ret = mbedtls_md_setup( &transform->md_ctx_dec, md_info, 1 ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret );
-            return( ret );
-        }
-
-        /* Get MAC length */
-        mac_key_len = mbedtls_md_get_size( md_info );
-        transform->maclen = mac_key_len;
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-        /*
-         * If HMAC is to be truncated, we shall keep the leftmost bytes,
-         * (rfc 6066 page 13 or rfc 2104 section 4),
-         * so we only need to adjust the length here.
-         */
-        if( session->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED )
-        {
-            transform->maclen = MBEDTLS_SSL_TRUNCATED_HMAC_LEN;
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT)
-            /* Fall back to old, non-compliant version of the truncated
-             * HMAC implementation which also truncates the key
-             * (Mbed TLS versions from 1.3 to 2.6.0) */
-            mac_key_len = transform->maclen;
-#endif
-        }
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-        /* IV length */
-        transform->ivlen = cipher_info->iv_size;
-
-        /* Minimum length */
-        if( cipher_info->mode == MBEDTLS_MODE_STREAM )
-            transform->minlen = transform->maclen;
-        else
-        {
-            /*
-             * GenericBlockCipher:
-             * 1. if EtM is in use: one block plus MAC
-             *    otherwise: * first multiple of blocklen greater than maclen
-             * 2. IV except for SSL3 and TLS 1.0
-             */
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-            if( session->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED )
-            {
-                transform->minlen = transform->maclen
-                                  + cipher_info->block_size;
-            }
-            else
-#endif
-            {
-                transform->minlen = transform->maclen
-                                  + cipher_info->block_size
-                                  - transform->maclen % cipher_info->block_size;
-            }
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1)
-            if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ||
-                ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_1 )
-                ; /* No need to adjust minlen */
-            else
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
-            if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_2 ||
-                ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-            {
-                transform->minlen += transform->ivlen;
-            }
-            else
-#endif
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-            }
-        }
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "keylen: %d, minlen: %d, ivlen: %d, maclen: %d",
-                   transform->keylen, transform->minlen, transform->ivlen,
-                   transform->maclen ) );
-
-    /*
-     * Finally setup the cipher contexts, IVs and MAC secrets.
-     */
-#if defined(MBEDTLS_SSL_CLI_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-    {
-        key1 = keyblk + mac_key_len * 2;
-        key2 = keyblk + mac_key_len * 2 + transform->keylen;
-
-        mac_enc = keyblk;
-        mac_dec = keyblk + mac_key_len;
-
-        /*
-         * This is not used in TLS v1.1.
-         */
-        iv_copy_len = ( transform->fixed_ivlen ) ?
-                            transform->fixed_ivlen : transform->ivlen;
-        memcpy( transform->iv_enc, key2 + transform->keylen,  iv_copy_len );
-        memcpy( transform->iv_dec, key2 + transform->keylen + iv_copy_len,
-                iv_copy_len );
-    }
-    else
-#endif /* MBEDTLS_SSL_CLI_C */
-#if defined(MBEDTLS_SSL_SRV_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
-        key1 = keyblk + mac_key_len * 2 + transform->keylen;
-        key2 = keyblk + mac_key_len * 2;
-
-        mac_enc = keyblk + mac_key_len;
-        mac_dec = keyblk;
-
-        /*
-         * This is not used in TLS v1.1.
-         */
-        iv_copy_len = ( transform->fixed_ivlen ) ?
-                            transform->fixed_ivlen : transform->ivlen;
-        memcpy( transform->iv_dec, key1 + transform->keylen,  iv_copy_len );
-        memcpy( transform->iv_enc, key1 + transform->keylen + iv_copy_len,
-                iv_copy_len );
-    }
-    else
-#endif /* MBEDTLS_SSL_SRV_C */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        if( mac_key_len > sizeof transform->mac_enc )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        memcpy( transform->mac_enc, mac_enc, mac_key_len );
-        memcpy( transform->mac_dec, mac_dec, mac_key_len );
-    }
-    else
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 )
-    {
-        /* For HMAC-based ciphersuites, initialize the HMAC transforms.
-           For AEAD-based ciphersuites, there is nothing to do here. */
-        if( mac_key_len != 0 )
-        {
-            mbedtls_md_hmac_starts( &transform->md_ctx_enc, mac_enc, mac_key_len );
-            mbedtls_md_hmac_starts( &transform->md_ctx_dec, mac_dec, mac_key_len );
-        }
-    }
-    else
-#endif
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_init != NULL )
-    {
-        int ret = 0;
-
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_init()" ) );
-
-        if( ( ret = mbedtls_ssl_hw_record_init( ssl, key1, key2, transform->keylen,
-                                        transform->iv_enc, transform->iv_dec,
-                                        iv_copy_len,
-                                        mac_enc, mac_dec,
-                                        mac_key_len ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_init", ret );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-    }
-#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
-
-#if defined(MBEDTLS_SSL_EXPORT_KEYS)
-    if( ssl->conf->f_export_keys != NULL )
-    {
-        ssl->conf->f_export_keys( ssl->conf->p_export_keys,
-                                  session->master, keyblk,
-                                  mac_key_len, transform->keylen,
-                                  iv_copy_len );
-    }
-#endif
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-
-    /* Only use PSA-based ciphers for TLS-1.2.
-     * That's relevant at least for TLS-1.0, where
-     * we assume that mbedtls_cipher_crypt() updates
-     * the structure field for the IV, which the PSA-based
-     * implementation currently doesn't. */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_enc,
-                                        cipher_info, taglen );
-        if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup_psa", ret );
-            return( ret );
-        }
-
-        if( ret == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "Successfully setup PSA-based encryption cipher context" ) );
-            psa_fallthrough = 0;
-        }
-        else
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to setup PSA-based cipher context for record encryption - fall through to default setup." ) );
-            psa_fallthrough = 1;
-        }
-    }
-    else
-        psa_fallthrough = 1;
-#else
-    psa_fallthrough = 1;
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-    if( psa_fallthrough == 1 )
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_enc,
-                                 cipher_info ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret );
-        return( ret );
-    }
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    /* Only use PSA-based ciphers for TLS-1.2.
-     * That's relevant at least for TLS-1.0, where
-     * we assume that mbedtls_cipher_crypt() updates
-     * the structure field for the IV, which the PSA-based
-     * implementation currently doesn't. */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_dec,
-                                        cipher_info, taglen );
-        if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup_psa", ret );
-            return( ret );
-        }
-
-        if( ret == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "Successfully setup PSA-based decryption cipher context" ) );
-            psa_fallthrough = 0;
-        }
-        else
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to setup PSA-based cipher context for record decryption - fall through to default setup." ) );
-            psa_fallthrough = 1;
-        }
-    }
-    else
-        psa_fallthrough = 1;
-#else
-    psa_fallthrough = 1;
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-    if( psa_fallthrough == 1 )
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_dec,
-                                 cipher_info ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret );
-        return( ret );
-    }
-
-    if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_enc, key1,
-                               cipher_info->key_bitlen,
-                               MBEDTLS_ENCRYPT ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret );
-        return( ret );
-    }
-
-    if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_dec, key2,
-                               cipher_info->key_bitlen,
-                               MBEDTLS_DECRYPT ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret );
-        return( ret );
-    }
-
-#if defined(MBEDTLS_CIPHER_MODE_CBC)
-    if( cipher_info->mode == MBEDTLS_MODE_CBC )
-    {
-        if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_enc,
-                                             MBEDTLS_PADDING_NONE ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret );
-            return( ret );
-        }
-
-        if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_dec,
-                                             MBEDTLS_PADDING_NONE ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret );
-            return( ret );
-        }
-    }
-#endif /* MBEDTLS_CIPHER_MODE_CBC */
-
-    mbedtls_platform_zeroize( keyblk, sizeof( keyblk ) );
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    // Initialize compression
-    //
-    if( session->compression == MBEDTLS_SSL_COMPRESS_DEFLATE )
-    {
-        if( ssl->compress_buf == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "Allocating compression buffer" ) );
-            ssl->compress_buf = mbedtls_calloc( 1, MBEDTLS_SSL_COMPRESS_BUFFER_LEN );
-            if( ssl->compress_buf == NULL )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed",
-                                    MBEDTLS_SSL_COMPRESS_BUFFER_LEN ) );
-                return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-            }
-        }
-
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Initializing zlib states" ) );
-
-        memset( &transform->ctx_deflate, 0, sizeof( transform->ctx_deflate ) );
-        memset( &transform->ctx_inflate, 0, sizeof( transform->ctx_inflate ) );
-
-        if( deflateInit( &transform->ctx_deflate,
-                         Z_DEFAULT_COMPRESSION )   != Z_OK ||
-            inflateInit( &transform->ctx_inflate ) != Z_OK )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to initialize compression" ) );
-            return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED );
-        }
-    }
-#endif /* MBEDTLS_ZLIB_SUPPORT */
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= derive keys" ) );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-void ssl_calc_verify_ssl( mbedtls_ssl_context *ssl, unsigned char hash[36] )
-{
-    mbedtls_md5_context md5;
-    mbedtls_sha1_context sha1;
-    unsigned char pad_1[48];
-    unsigned char pad_2[48];
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify ssl" ) );
-
-    mbedtls_md5_init( &md5 );
-    mbedtls_sha1_init( &sha1 );
-
-    mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
-    mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
-
-    memset( pad_1, 0x36, 48 );
-    memset( pad_2, 0x5C, 48 );
-
-    mbedtls_md5_update_ret( &md5, ssl->session_negotiate->master, 48 );
-    mbedtls_md5_update_ret( &md5, pad_1, 48 );
-    mbedtls_md5_finish_ret( &md5, hash );
-
-    mbedtls_md5_starts_ret( &md5 );
-    mbedtls_md5_update_ret( &md5, ssl->session_negotiate->master, 48 );
-    mbedtls_md5_update_ret( &md5, pad_2, 48 );
-    mbedtls_md5_update_ret( &md5, hash,  16 );
-    mbedtls_md5_finish_ret( &md5, hash );
-
-    mbedtls_sha1_update_ret( &sha1, ssl->session_negotiate->master, 48 );
-    mbedtls_sha1_update_ret( &sha1, pad_1, 40 );
-    mbedtls_sha1_finish_ret( &sha1, hash + 16 );
-
-    mbedtls_sha1_starts_ret( &sha1 );
-    mbedtls_sha1_update_ret( &sha1, ssl->session_negotiate->master, 48 );
-    mbedtls_sha1_update_ret( &sha1, pad_2, 40 );
-    mbedtls_sha1_update_ret( &sha1, hash + 16, 20 );
-    mbedtls_sha1_finish_ret( &sha1, hash + 16 );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 36 );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
-
-    mbedtls_md5_free(  &md5  );
-    mbedtls_sha1_free( &sha1 );
-
-    return;
-}
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
-void ssl_calc_verify_tls( mbedtls_ssl_context *ssl, unsigned char hash[36] )
-{
-    mbedtls_md5_context md5;
-    mbedtls_sha1_context sha1;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify tls" ) );
-
-    mbedtls_md5_init( &md5 );
-    mbedtls_sha1_init( &sha1 );
-
-    mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
-    mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
-
-    mbedtls_md5_finish_ret( &md5,  hash );
-    mbedtls_sha1_finish_ret( &sha1, hash + 16 );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 36 );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
-
-    mbedtls_md5_free(  &md5  );
-    mbedtls_sha1_free( &sha1 );
-
-    return;
-}
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA256_C)
-void ssl_calc_verify_tls_sha256( mbedtls_ssl_context *ssl, unsigned char hash[32] )
-{
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    size_t hash_size;
-    psa_status_t status;
-    psa_hash_operation_t sha256_psa = psa_hash_operation_init();
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> PSA calc verify sha256" ) );
-    status = psa_hash_clone( &ssl->handshake->fin_sha256_psa, &sha256_psa );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) );
-        return;
-    }
-
-    status = psa_hash_finish( &sha256_psa, hash, 32, &hash_size );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) );
-        return;
-    }
-    MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated verify result", hash, 32 );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= PSA calc verify" ) );
-#else
-    mbedtls_sha256_context sha256;
-
-    mbedtls_sha256_init( &sha256 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha256" ) );
-
-    mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 );
-    mbedtls_sha256_finish_ret( &sha256, hash );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 32 );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
-
-    mbedtls_sha256_free( &sha256 );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    return;
-}
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-void ssl_calc_verify_tls_sha384( mbedtls_ssl_context *ssl, unsigned char hash[48] )
-{
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    size_t hash_size;
-    psa_status_t status;
-    psa_hash_operation_t sha384_psa = psa_hash_operation_init();
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> PSA calc verify sha384" ) );
-    status = psa_hash_clone( &ssl->handshake->fin_sha384_psa, &sha384_psa );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) );
-        return;
-    }
-
-    status = psa_hash_finish( &sha384_psa, hash, 48, &hash_size );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) );
-        return;
-    }
-    MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated verify result", hash, 48 );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= PSA calc verify" ) );
-#else
-    mbedtls_sha512_context sha512;
-
-    mbedtls_sha512_init( &sha512 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha384" ) );
-
-    mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 );
-    mbedtls_sha512_finish_ret( &sha512, hash );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 48 );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
-
-    mbedtls_sha512_free( &sha512 );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    return;
-}
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex )
-{
-    unsigned char *p = ssl->handshake->premaster;
-    unsigned char *end = p + sizeof( ssl->handshake->premaster );
-    const unsigned char *psk = ssl->conf->psk;
-    size_t psk_len = ssl->conf->psk_len;
-
-    /* If the psk callback was called, use its result */
-    if( ssl->handshake->psk != NULL )
-    {
-        psk = ssl->handshake->psk;
-        psk_len = ssl->handshake->psk_len;
-    }
-
-    /*
-     * PMS = struct {
-     *     opaque other_secret<0..2^16-1>;
-     *     opaque psk<0..2^16-1>;
-     * };
-     * with "other_secret" depending on the particular key exchange
-     */
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-    if( key_ex == MBEDTLS_KEY_EXCHANGE_PSK )
-    {
-        if( end - p < 2 )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-        *(p++) = (unsigned char)( psk_len >> 8 );
-        *(p++) = (unsigned char)( psk_len      );
-
-        if( end < p || (size_t)( end - p ) < psk_len )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-        memset( p, 0, psk_len );
-        p += psk_len;
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-    if( key_ex == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
-    {
-        /*
-         * other_secret already set by the ClientKeyExchange message,
-         * and is 48 bytes long
-         */
-        if( end - p < 2 )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-        *p++ = 0;
-        *p++ = 48;
-        p += 48;
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-    if( key_ex == MBEDTLS_KEY_EXCHANGE_DHE_PSK )
-    {
-        int ret;
-        size_t len;
-
-        /* Write length only when we know the actual value */
-        if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx,
-                                      p + 2, end - ( p + 2 ), &len,
-                                      ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret );
-            return( ret );
-        }
-        *(p++) = (unsigned char)( len >> 8 );
-        *(p++) = (unsigned char)( len );
-        p += len;
-
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K  );
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-    if( key_ex == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
-    {
-        int ret;
-        size_t zlen;
-
-        if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx, &zlen,
-                                       p + 2, end - ( p + 2 ),
-                                       ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret );
-            return( ret );
-        }
-
-        *(p++) = (unsigned char)( zlen >> 8 );
-        *(p++) = (unsigned char)( zlen      );
-        p += zlen;
-
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_Z );
-    }
-    else
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    /* opaque psk<0..2^16-1>; */
-    if( end - p < 2 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    *(p++) = (unsigned char)( psk_len >> 8 );
-    *(p++) = (unsigned char)( psk_len      );
-
-    if( end < p || (size_t)( end - p ) < psk_len )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    memcpy( p, psk, psk_len );
-    p += psk_len;
-
-    ssl->handshake->pmslen = p - ssl->handshake->premaster;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-/*
- * SSLv3.0 MAC functions
- */
-#define SSL_MAC_MAX_BYTES   20  /* MD-5 or SHA-1 */
-static void ssl_mac( mbedtls_md_context_t *md_ctx,
-                     const unsigned char *secret,
-                     const unsigned char *buf, size_t len,
-                     const unsigned char *ctr, int type,
-                     unsigned char out[SSL_MAC_MAX_BYTES] )
-{
-    unsigned char header[11];
-    unsigned char padding[48];
-    int padlen;
-    int md_size = mbedtls_md_get_size( md_ctx->md_info );
-    int md_type = mbedtls_md_get_type( md_ctx->md_info );
-
-    /* Only MD5 and SHA-1 supported */
-    if( md_type == MBEDTLS_MD_MD5 )
-        padlen = 48;
-    else
-        padlen = 40;
-
-    memcpy( header, ctr, 8 );
-    header[ 8] = (unsigned char)  type;
-    header[ 9] = (unsigned char)( len >> 8 );
-    header[10] = (unsigned char)( len      );
-
-    memset( padding, 0x36, padlen );
-    mbedtls_md_starts( md_ctx );
-    mbedtls_md_update( md_ctx, secret,  md_size );
-    mbedtls_md_update( md_ctx, padding, padlen  );
-    mbedtls_md_update( md_ctx, header,  11      );
-    mbedtls_md_update( md_ctx, buf,     len     );
-    mbedtls_md_finish( md_ctx, out              );
-
-    memset( padding, 0x5C, padlen );
-    mbedtls_md_starts( md_ctx );
-    mbedtls_md_update( md_ctx, secret,    md_size );
-    mbedtls_md_update( md_ctx, padding,   padlen  );
-    mbedtls_md_update( md_ctx, out,       md_size );
-    mbedtls_md_finish( md_ctx, out                );
-}
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-
-#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) ||     \
-    ( defined(MBEDTLS_CIPHER_MODE_CBC) &&                                  \
-      ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) || defined(MBEDTLS_ARIA_C)) )
-#define SSL_SOME_MODES_USE_MAC
-#endif
-
-/* The function below is only used in the Lucky 13 counter-measure in
- * ssl_decrypt_buf(). These are the defines that guard the call site. */
-#if defined(SSL_SOME_MODES_USE_MAC) && \
-    ( defined(MBEDTLS_SSL_PROTO_TLS1) || \
-      defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-      defined(MBEDTLS_SSL_PROTO_TLS1_2) )
-/* This function makes sure every byte in the memory region is accessed
- * (in ascending addresses order) */
-static void ssl_read_memory( unsigned char *p, size_t len )
-{
-    unsigned char acc = 0;
-    volatile unsigned char force;
-
-    for( ; len != 0; p++, len-- )
-        acc ^= *p;
-
-    force = acc;
-    (void) force;
-}
-#endif /* SSL_SOME_MODES_USE_MAC && ( TLS1 || TLS1_1 || TLS1_2 ) */
-
-/*
- * Encryption/decryption functions
- */
-static int ssl_encrypt_buf( mbedtls_ssl_context *ssl )
-{
-    mbedtls_cipher_mode_t mode;
-    int auth_done = 0;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> encrypt buf" ) );
-
-    if( ssl->session_out == NULL || ssl->transform_out == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    mode = mbedtls_cipher_get_cipher_mode( &ssl->transform_out->cipher_ctx_enc );
-
-    MBEDTLS_SSL_DEBUG_BUF( 4, "before encrypt: output payload",
-                      ssl->out_msg, ssl->out_msglen );
-
-    /*
-     * Add MAC before if needed
-     */
-#if defined(SSL_SOME_MODES_USE_MAC)
-    if( mode == MBEDTLS_MODE_STREAM ||
-        ( mode == MBEDTLS_MODE_CBC
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-          && ssl->session_out->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED
-#endif
-        ) )
-    {
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-        if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-        {
-            unsigned char mac[SSL_MAC_MAX_BYTES];
-
-            ssl_mac( &ssl->transform_out->md_ctx_enc,
-                      ssl->transform_out->mac_enc,
-                      ssl->out_msg, ssl->out_msglen,
-                      ssl->out_ctr, ssl->out_msgtype,
-                      mac );
-
-            memcpy( ssl->out_msg + ssl->out_msglen, mac, ssl->transform_out->maclen );
-        }
-        else
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-        defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 )
-        {
-            unsigned char mac[MBEDTLS_SSL_MAC_ADD];
-
-            mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_ctr, 8 );
-            mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_hdr, 3 );
-            mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_len, 2 );
-            mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc,
-                             ssl->out_msg, ssl->out_msglen );
-            mbedtls_md_hmac_finish( &ssl->transform_out->md_ctx_enc, mac );
-            mbedtls_md_hmac_reset( &ssl->transform_out->md_ctx_enc );
-
-            memcpy( ssl->out_msg + ssl->out_msglen, mac, ssl->transform_out->maclen );
-        }
-        else
-#endif
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        MBEDTLS_SSL_DEBUG_BUF( 4, "computed mac",
-                       ssl->out_msg + ssl->out_msglen,
-                       ssl->transform_out->maclen );
-
-        ssl->out_msglen += ssl->transform_out->maclen;
-        auth_done++;
-    }
-#endif /* AEAD not the only option */
-
-    /*
-     * Encrypt
-     */
-#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER)
-    if( mode == MBEDTLS_MODE_STREAM )
-    {
-        int ret;
-        size_t olen = 0;
-
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
-                            "including %d bytes of padding",
-                       ssl->out_msglen, 0 ) );
-
-        if( ( ret = mbedtls_cipher_crypt( &ssl->transform_out->cipher_ctx_enc,
-                                   ssl->transform_out->iv_enc,
-                                   ssl->transform_out->ivlen,
-                                   ssl->out_msg, ssl->out_msglen,
-                                   ssl->out_msg, &olen ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret );
-            return( ret );
-        }
-
-        if( ssl->out_msglen != olen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-    }
-    else
-#endif /* MBEDTLS_ARC4_C || MBEDTLS_CIPHER_NULL_CIPHER */
-#if defined(MBEDTLS_GCM_C) || \
-    defined(MBEDTLS_CCM_C) || \
-    defined(MBEDTLS_CHACHAPOLY_C)
-    if( mode == MBEDTLS_MODE_GCM ||
-        mode == MBEDTLS_MODE_CCM ||
-        mode == MBEDTLS_MODE_CHACHAPOLY )
-    {
-        int ret;
-        size_t enc_msglen, olen;
-        unsigned char *enc_msg;
-        unsigned char add_data[13];
-        unsigned char iv[12];
-        mbedtls_ssl_transform *transform = ssl->transform_out;
-        unsigned char taglen = transform->ciphersuite_info->flags &
-                               MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16;
-        size_t explicit_ivlen = transform->ivlen - transform->fixed_ivlen;
-
-        /*
-         * Prepare additional authenticated data
-         */
-        memcpy( add_data, ssl->out_ctr, 8 );
-        add_data[8]  = ssl->out_msgtype;
-        mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
-                           ssl->conf->transport, add_data + 9 );
-        add_data[11] = ( ssl->out_msglen >> 8 ) & 0xFF;
-        add_data[12] = ssl->out_msglen & 0xFF;
-
-        MBEDTLS_SSL_DEBUG_BUF( 4, "additional data for AEAD", add_data, 13 );
-
-        /*
-         * Generate IV
-         */
-        if( transform->ivlen == 12 && transform->fixed_ivlen == 4 )
-        {
-            /* GCM and CCM: fixed || explicit (=seqnum) */
-            memcpy( iv, transform->iv_enc, transform->fixed_ivlen );
-            memcpy( iv + transform->fixed_ivlen, ssl->out_ctr, 8 );
-            memcpy( ssl->out_iv, ssl->out_ctr, 8 );
-
-        }
-        else if( transform->ivlen == 12 && transform->fixed_ivlen == 12 )
-        {
-            /* ChachaPoly: fixed XOR sequence number */
-            unsigned char i;
-
-            memcpy( iv, transform->iv_enc, transform->fixed_ivlen );
-
-            for( i = 0; i < 8; i++ )
-                iv[i+4] ^= ssl->out_ctr[i];
-        }
-        else
-        {
-            /* Reminder if we ever add an AEAD mode with a different size */
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        MBEDTLS_SSL_DEBUG_BUF( 4, "IV used (internal)",
-                                  iv, transform->ivlen );
-        MBEDTLS_SSL_DEBUG_BUF( 4, "IV used (transmitted)",
-                                  ssl->out_iv, explicit_ivlen );
-
-        /*
-         * Fix message length with added IV
-         */
-        enc_msg = ssl->out_msg;
-        enc_msglen = ssl->out_msglen;
-        ssl->out_msglen += explicit_ivlen;
-
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
-                                    "including 0 bytes of padding",
-                                    ssl->out_msglen ) );
-
-        /*
-         * Encrypt and authenticate
-         */
-        if( ( ret = mbedtls_cipher_auth_encrypt( &transform->cipher_ctx_enc,
-                                         iv, transform->ivlen,
-                                         add_data, 13,
-                                         enc_msg, enc_msglen,
-                                         enc_msg, &olen,
-                                         enc_msg + enc_msglen, taglen ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_auth_encrypt", ret );
-            return( ret );
-        }
-
-        if( olen != enc_msglen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        ssl->out_msglen += taglen;
-        auth_done++;
-
-        MBEDTLS_SSL_DEBUG_BUF( 4, "after encrypt: tag", enc_msg + enc_msglen, taglen );
-    }
-    else
-#endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C */
-#if defined(MBEDTLS_CIPHER_MODE_CBC) &&                                    \
-    ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) || defined(MBEDTLS_ARIA_C) )
-    if( mode == MBEDTLS_MODE_CBC )
-    {
-        int ret;
-        unsigned char *enc_msg;
-        size_t enc_msglen, padlen, olen = 0, i;
-
-        padlen = ssl->transform_out->ivlen - ( ssl->out_msglen + 1 ) %
-                 ssl->transform_out->ivlen;
-        if( padlen == ssl->transform_out->ivlen )
-            padlen = 0;
-
-        for( i = 0; i <= padlen; i++ )
-            ssl->out_msg[ssl->out_msglen + i] = (unsigned char) padlen;
-
-        ssl->out_msglen += padlen + 1;
-
-        enc_msglen = ssl->out_msglen;
-        enc_msg = ssl->out_msg;
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        /*
-         * Prepend per-record IV for block cipher in TLS v1.1 and up as per
-         * Method 1 (6.2.3.2. in RFC4346 and RFC5246)
-         */
-        if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
-        {
-            /*
-             * Generate IV
-             */
-            ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->transform_out->iv_enc,
-                                  ssl->transform_out->ivlen );
-            if( ret != 0 )
-                return( ret );
-
-            memcpy( ssl->out_iv, ssl->transform_out->iv_enc,
-                    ssl->transform_out->ivlen );
-
-            /*
-             * Fix pointer positions and message length with added IV
-             */
-            enc_msg = ssl->out_msg;
-            enc_msglen = ssl->out_msglen;
-            ssl->out_msglen += ssl->transform_out->ivlen;
-        }
-#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */
-
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
-                            "including %d bytes of IV and %d bytes of padding",
-                            ssl->out_msglen, ssl->transform_out->ivlen,
-                            padlen + 1 ) );
-
-        if( ( ret = mbedtls_cipher_crypt( &ssl->transform_out->cipher_ctx_enc,
-                                   ssl->transform_out->iv_enc,
-                                   ssl->transform_out->ivlen,
-                                   enc_msg, enc_msglen,
-                                   enc_msg, &olen ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret );
-            return( ret );
-        }
-
-        if( enc_msglen != olen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1)
-        if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 )
-        {
-            /*
-             * Save IV in SSL3 and TLS1
-             */
-            memcpy( ssl->transform_out->iv_enc,
-                    ssl->transform_out->cipher_ctx_enc.iv,
-                    ssl->transform_out->ivlen );
-        }
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-        if( auth_done == 0 )
-        {
-            unsigned char mac[MBEDTLS_SSL_MAC_ADD];
-
-            /*
-             * MAC(MAC_write_key, seq_num +
-             *     TLSCipherText.type +
-             *     TLSCipherText.version +
-             *     length_of( (IV +) ENC(...) ) +
-             *     IV + // except for TLS 1.0
-             *     ENC(content + padding + padding_length));
-             */
-            unsigned char pseudo_hdr[13];
-
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "using encrypt then mac" ) );
-
-            memcpy( pseudo_hdr +  0, ssl->out_ctr, 8 );
-            memcpy( pseudo_hdr +  8, ssl->out_hdr, 3 );
-            pseudo_hdr[11] = (unsigned char)( ( ssl->out_msglen >> 8 ) & 0xFF );
-            pseudo_hdr[12] = (unsigned char)( ( ssl->out_msglen      ) & 0xFF );
-
-            MBEDTLS_SSL_DEBUG_BUF( 4, "MAC'd meta-data", pseudo_hdr, 13 );
-
-            mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, pseudo_hdr, 13 );
-            mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc,
-                             ssl->out_iv, ssl->out_msglen );
-            mbedtls_md_hmac_finish( &ssl->transform_out->md_ctx_enc, mac );
-            mbedtls_md_hmac_reset( &ssl->transform_out->md_ctx_enc );
-
-            memcpy( ssl->out_iv + ssl->out_msglen, mac,
-                    ssl->transform_out->maclen );
-
-            ssl->out_msglen += ssl->transform_out->maclen;
-            auth_done++;
-        }
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-    }
-    else
-#endif /* MBEDTLS_CIPHER_MODE_CBC &&
-          ( MBEDTLS_AES_C || MBEDTLS_CAMELLIA_C || MBEDTLS_ARIA_C ) */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    /* Make extra sure authentication was performed, exactly once */
-    if( auth_done != 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= encrypt buf" ) );
-
-    return( 0 );
-}
-
-static int ssl_decrypt_buf( mbedtls_ssl_context *ssl )
-{
-    mbedtls_cipher_mode_t mode;
-    int auth_done = 0;
-#if defined(SSL_SOME_MODES_USE_MAC)
-    size_t padlen = 0, correct = 1;
-#endif
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> decrypt buf" ) );
-
-    if( ssl->session_in == NULL || ssl->transform_in == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    mode = mbedtls_cipher_get_cipher_mode( &ssl->transform_in->cipher_ctx_dec );
-
-    if( ssl->in_msglen < ssl->transform_in->minlen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "in_msglen (%d) < minlen (%d)",
-                       ssl->in_msglen, ssl->transform_in->minlen ) );
-        return( MBEDTLS_ERR_SSL_INVALID_MAC );
-    }
-
-#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER)
-    if( mode == MBEDTLS_MODE_STREAM )
-    {
-        int ret;
-        size_t olen = 0;
-
-        padlen = 0;
-
-        if( ( ret = mbedtls_cipher_crypt( &ssl->transform_in->cipher_ctx_dec,
-                                   ssl->transform_in->iv_dec,
-                                   ssl->transform_in->ivlen,
-                                   ssl->in_msg, ssl->in_msglen,
-                                   ssl->in_msg, &olen ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret );
-            return( ret );
-        }
-
-        if( ssl->in_msglen != olen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-    }
-    else
-#endif /* MBEDTLS_ARC4_C || MBEDTLS_CIPHER_NULL_CIPHER */
-#if defined(MBEDTLS_GCM_C) || \
-    defined(MBEDTLS_CCM_C) || \
-    defined(MBEDTLS_CHACHAPOLY_C)
-    if( mode == MBEDTLS_MODE_GCM ||
-        mode == MBEDTLS_MODE_CCM ||
-        mode == MBEDTLS_MODE_CHACHAPOLY )
-    {
-        int ret;
-        size_t dec_msglen, olen;
-        unsigned char *dec_msg;
-        unsigned char *dec_msg_result;
-        unsigned char add_data[13];
-        unsigned char iv[12];
-        mbedtls_ssl_transform *transform = ssl->transform_in;
-        unsigned char taglen = transform->ciphersuite_info->flags &
-                               MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16;
-        size_t explicit_iv_len = transform->ivlen - transform->fixed_ivlen;
-
-        /*
-         * Compute and update sizes
-         */
-        if( ssl->in_msglen < explicit_iv_len + taglen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < explicit_iv_len (%d) "
-                                "+ taglen (%d)", ssl->in_msglen,
-                                explicit_iv_len, taglen ) );
-            return( MBEDTLS_ERR_SSL_INVALID_MAC );
-        }
-        dec_msglen = ssl->in_msglen - explicit_iv_len - taglen;
-
-        dec_msg = ssl->in_msg;
-        dec_msg_result = ssl->in_msg;
-        ssl->in_msglen = dec_msglen;
-
-        /*
-         * Prepare additional authenticated data
-         */
-        memcpy( add_data, ssl->in_ctr, 8 );
-        add_data[8]  = ssl->in_msgtype;
-        mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
-                           ssl->conf->transport, add_data + 9 );
-        add_data[11] = ( ssl->in_msglen >> 8 ) & 0xFF;
-        add_data[12] = ssl->in_msglen & 0xFF;
-
-        MBEDTLS_SSL_DEBUG_BUF( 4, "additional data for AEAD", add_data, 13 );
-
-        /*
-         * Prepare IV
-         */
-        if( transform->ivlen == 12 && transform->fixed_ivlen == 4 )
-        {
-            /* GCM and CCM: fixed || explicit (transmitted) */
-            memcpy( iv, transform->iv_dec, transform->fixed_ivlen );
-            memcpy( iv + transform->fixed_ivlen, ssl->in_iv, 8 );
-
-        }
-        else if( transform->ivlen == 12 && transform->fixed_ivlen == 12 )
-        {
-            /* ChachaPoly: fixed XOR sequence number */
-            unsigned char i;
-
-            memcpy( iv, transform->iv_dec, transform->fixed_ivlen );
-
-            for( i = 0; i < 8; i++ )
-                iv[i+4] ^= ssl->in_ctr[i];
-        }
-        else
-        {
-            /* Reminder if we ever add an AEAD mode with a different size */
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        MBEDTLS_SSL_DEBUG_BUF( 4, "IV used", iv, transform->ivlen );
-        MBEDTLS_SSL_DEBUG_BUF( 4, "TAG used", dec_msg + dec_msglen, taglen );
-
-        /*
-         * Decrypt and authenticate
-         */
-        if( ( ret = mbedtls_cipher_auth_decrypt( &ssl->transform_in->cipher_ctx_dec,
-                                         iv, transform->ivlen,
-                                         add_data, 13,
-                                         dec_msg, dec_msglen,
-                                         dec_msg_result, &olen,
-                                         dec_msg + dec_msglen, taglen ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_auth_decrypt", ret );
-
-            if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED )
-                return( MBEDTLS_ERR_SSL_INVALID_MAC );
-
-            return( ret );
-        }
-        auth_done++;
-
-        if( olen != dec_msglen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-    }
-    else
-#endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C */
-#if defined(MBEDTLS_CIPHER_MODE_CBC) &&                                    \
-    ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) || defined(MBEDTLS_ARIA_C) )
-    if( mode == MBEDTLS_MODE_CBC )
-    {
-        /*
-         * Decrypt and check the padding
-         */
-        int ret;
-        unsigned char *dec_msg;
-        unsigned char *dec_msg_result;
-        size_t dec_msglen;
-        size_t minlen = 0;
-        size_t olen = 0;
-
-        /*
-         * Check immediate ciphertext sanity
-         */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
-            minlen += ssl->transform_in->ivlen;
-#endif
-
-        if( ssl->in_msglen < minlen + ssl->transform_in->ivlen ||
-            ssl->in_msglen < minlen + ssl->transform_in->maclen + 1 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < max( ivlen(%d), maclen (%d) "
-                                "+ 1 ) ( + expl IV )", ssl->in_msglen,
-                                ssl->transform_in->ivlen,
-                                ssl->transform_in->maclen ) );
-            return( MBEDTLS_ERR_SSL_INVALID_MAC );
-        }
-
-        dec_msglen = ssl->in_msglen;
-        dec_msg = ssl->in_msg;
-        dec_msg_result = ssl->in_msg;
-
-        /*
-         * Authenticate before decrypt if enabled
-         */
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-        if( ssl->session_in->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED )
-        {
-            unsigned char mac_expect[MBEDTLS_SSL_MAC_ADD];
-            unsigned char pseudo_hdr[13];
-
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "using encrypt then mac" ) );
-
-            dec_msglen -= ssl->transform_in->maclen;
-            ssl->in_msglen -= ssl->transform_in->maclen;
-
-            memcpy( pseudo_hdr +  0, ssl->in_ctr, 8 );
-            memcpy( pseudo_hdr +  8, ssl->in_hdr, 3 );
-            pseudo_hdr[11] = (unsigned char)( ( ssl->in_msglen >> 8 ) & 0xFF );
-            pseudo_hdr[12] = (unsigned char)( ( ssl->in_msglen      ) & 0xFF );
-
-            MBEDTLS_SSL_DEBUG_BUF( 4, "MAC'd meta-data", pseudo_hdr, 13 );
-
-            mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, pseudo_hdr, 13 );
-            mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec,
-                             ssl->in_iv, ssl->in_msglen );
-            mbedtls_md_hmac_finish( &ssl->transform_in->md_ctx_dec, mac_expect );
-            mbedtls_md_hmac_reset( &ssl->transform_in->md_ctx_dec );
-
-            MBEDTLS_SSL_DEBUG_BUF( 4, "message  mac", ssl->in_iv + ssl->in_msglen,
-                                              ssl->transform_in->maclen );
-            MBEDTLS_SSL_DEBUG_BUF( 4, "expected mac", mac_expect,
-                                              ssl->transform_in->maclen );
-
-            if( mbedtls_ssl_safer_memcmp( ssl->in_iv + ssl->in_msglen, mac_expect,
-                                          ssl->transform_in->maclen ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "message mac does not match" ) );
-
-                return( MBEDTLS_ERR_SSL_INVALID_MAC );
-            }
-            auth_done++;
-        }
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-
-        /*
-         * Check length sanity
-         */
-        if( ssl->in_msglen % ssl->transform_in->ivlen != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) %% ivlen (%d) != 0",
-                           ssl->in_msglen, ssl->transform_in->ivlen ) );
-            return( MBEDTLS_ERR_SSL_INVALID_MAC );
-        }
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        /*
-         * Initialize for prepended IV for block cipher in TLS v1.1 and up
-         */
-        if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
-        {
-            unsigned char i;
-            dec_msglen -= ssl->transform_in->ivlen;
-            ssl->in_msglen -= ssl->transform_in->ivlen;
-
-            for( i = 0; i < ssl->transform_in->ivlen; i++ )
-                ssl->transform_in->iv_dec[i] = ssl->in_iv[i];
-        }
-#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */
-
-        if( ( ret = mbedtls_cipher_crypt( &ssl->transform_in->cipher_ctx_dec,
-                                   ssl->transform_in->iv_dec,
-                                   ssl->transform_in->ivlen,
-                                   dec_msg, dec_msglen,
-                                   dec_msg_result, &olen ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret );
-            return( ret );
-        }
-
-        if( dec_msglen != olen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1)
-        if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 )
-        {
-            /*
-             * Save IV in SSL3 and TLS1
-             */
-            memcpy( ssl->transform_in->iv_dec,
-                    ssl->transform_in->cipher_ctx_dec.iv,
-                    ssl->transform_in->ivlen );
-        }
-#endif
-
-        padlen = 1 + ssl->in_msg[ssl->in_msglen - 1];
-
-        if( ssl->in_msglen < ssl->transform_in->maclen + padlen &&
-            auth_done == 0 )
-        {
-#if defined(MBEDTLS_SSL_DEBUG_ALL)
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < maclen (%d) + padlen (%d)",
-                        ssl->in_msglen, ssl->transform_in->maclen, padlen ) );
-#endif
-            padlen = 0;
-            correct = 0;
-        }
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-        if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-        {
-            if( padlen > ssl->transform_in->ivlen )
-            {
-#if defined(MBEDTLS_SSL_DEBUG_ALL)
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding length: is %d, "
-                                    "should be no more than %d",
-                               padlen, ssl->transform_in->ivlen ) );
-#endif
-                correct = 0;
-            }
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        if( ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_0 )
-        {
-            /*
-             * TLSv1+: always check the padding up to the first failure
-             * and fake check up to 256 bytes of padding
-             */
-            size_t pad_count = 0, real_count = 1;
-            size_t padding_idx = ssl->in_msglen - padlen;
-            size_t i;
-
-            /*
-             * Padding is guaranteed to be incorrect if:
-             *   1. padlen > ssl->in_msglen
-             *
-             *   2. padding_idx > MBEDTLS_SSL_IN_CONTENT_LEN +
-             *                     ssl->transform_in->maclen
-             *
-             * In both cases we reset padding_idx to a safe value (0) to
-             * prevent out-of-buffer reads.
-             */
-            correct &= ( padlen <= ssl->in_msglen );
-            correct &= ( padding_idx <= MBEDTLS_SSL_IN_CONTENT_LEN +
-                                       ssl->transform_in->maclen );
-
-            padding_idx *= correct;
-
-            for( i = 0; i < 256; i++ )
-            {
-                real_count &= ( i < padlen );
-                pad_count += real_count *
-                             ( ssl->in_msg[padding_idx + i] == padlen - 1 );
-            }
-
-            correct &= ( pad_count == padlen ); /* Only 1 on correct padding */
-
-#if defined(MBEDTLS_SSL_DEBUG_ALL)
-            if( padlen > 0 && correct == 0 )
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding byte detected" ) );
-#endif
-            padlen &= correct * 0x1FF;
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
-          MBEDTLS_SSL_PROTO_TLS1_2 */
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        ssl->in_msglen -= padlen;
-    }
-    else
-#endif /* MBEDTLS_CIPHER_MODE_CBC &&
-          ( MBEDTLS_AES_C || MBEDTLS_CAMELLIA_C || MBEDTLS_ARIA_C ) */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-#if defined(MBEDTLS_SSL_DEBUG_ALL)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "raw buffer after decryption",
-                   ssl->in_msg, ssl->in_msglen );
-#endif
-
-    /*
-     * Authenticate if not done yet.
-     * Compute the MAC regardless of the padding result (RFC4346, CBCTIME).
-     */
-#if defined(SSL_SOME_MODES_USE_MAC)
-    if( auth_done == 0 )
-    {
-        unsigned char mac_expect[MBEDTLS_SSL_MAC_ADD];
-
-        ssl->in_msglen -= ssl->transform_in->maclen;
-
-        ssl->in_len[0] = (unsigned char)( ssl->in_msglen >> 8 );
-        ssl->in_len[1] = (unsigned char)( ssl->in_msglen      );
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-        if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-        {
-            ssl_mac( &ssl->transform_in->md_ctx_dec,
-                      ssl->transform_in->mac_dec,
-                      ssl->in_msg, ssl->in_msglen,
-                      ssl->in_ctr, ssl->in_msgtype,
-                      mac_expect );
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-        defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        if( ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_0 )
-        {
-            /*
-             * Process MAC and always update for padlen afterwards to make
-             * total time independent of padlen.
-             *
-             * Known timing attacks:
-             *  - Lucky Thirteen (http://www.isg.rhul.ac.uk/tls/TLStiming.pdf)
-             *
-             * To compensate for different timings for the MAC calculation
-             * depending on how much padding was removed (which is determined
-             * by padlen), process extra_run more blocks through the hash
-             * function.
-             *
-             * The formula in the paper is
-             *   extra_run = ceil( (L1-55) / 64 ) - ceil( (L2-55) / 64 )
-             * where L1 is the size of the header plus the decrypted message
-             * plus CBC padding and L2 is the size of the header plus the
-             * decrypted message. This is for an underlying hash function
-             * with 64-byte blocks.
-             * We use ( (Lx+8) / 64 ) to handle 'negative Lx' values
-             * correctly. We round down instead of up, so -56 is the correct
-             * value for our calculations instead of -55.
-             *
-             * Repeat the formula rather than defining a block_size variable.
-             * This avoids requiring division by a variable at runtime
-             * (which would be marginally less efficient and would require
-             * linking an extra division function in some builds).
-             */
-            size_t j, extra_run = 0;
-
-            /*
-             * The next two sizes are the minimum and maximum values of
-             * in_msglen over all padlen values.
-             *
-             * They're independent of padlen, since we previously did
-             * in_msglen -= padlen.
-             *
-             * Note that max_len + maclen is never more than the buffer
-             * length, as we previously did in_msglen -= maclen too.
-             */
-            const size_t max_len = ssl->in_msglen + padlen;
-            const size_t min_len = ( max_len > 256 ) ? max_len - 256 : 0;
-
-            switch( ssl->transform_in->ciphersuite_info->mac )
-            {
-#if defined(MBEDTLS_MD5_C) || defined(MBEDTLS_SHA1_C) || \
-    defined(MBEDTLS_SHA256_C)
-                case MBEDTLS_MD_MD5:
-                case MBEDTLS_MD_SHA1:
-                case MBEDTLS_MD_SHA256:
-                    /* 8 bytes of message size, 64-byte compression blocks */
-                    extra_run = ( 13 + ssl->in_msglen + padlen + 8 ) / 64 -
-                                ( 13 + ssl->in_msglen          + 8 ) / 64;
-                    break;
-#endif
-#if defined(MBEDTLS_SHA512_C)
-                case MBEDTLS_MD_SHA384:
-                    /* 16 bytes of message size, 128-byte compression blocks */
-                    extra_run = ( 13 + ssl->in_msglen + padlen + 16 ) / 128 -
-                                ( 13 + ssl->in_msglen          + 16 ) / 128;
-                    break;
-#endif
-                default:
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-            }
-
-            extra_run &= correct * 0xFF;
-
-            mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_ctr, 8 );
-            mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_hdr, 3 );
-            mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_len, 2 );
-            mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_msg,
-                             ssl->in_msglen );
-            /* Make sure we access everything even when padlen > 0. This
-             * makes the synchronisation requirements for just-in-time
-             * Prime+Probe attacks much tighter and hopefully impractical. */
-            ssl_read_memory( ssl->in_msg + ssl->in_msglen, padlen );
-            mbedtls_md_hmac_finish( &ssl->transform_in->md_ctx_dec, mac_expect );
-
-            /* Call mbedtls_md_process at least once due to cache attacks
-             * that observe whether md_process() was called of not */
-            for( j = 0; j < extra_run + 1; j++ )
-                mbedtls_md_process( &ssl->transform_in->md_ctx_dec, ssl->in_msg );
-
-            mbedtls_md_hmac_reset( &ssl->transform_in->md_ctx_dec );
-
-            /* Make sure we access all the memory that could contain the MAC,
-             * before we check it in the next code block. This makes the
-             * synchronisation requirements for just-in-time Prime+Probe
-             * attacks much tighter and hopefully impractical. */
-            ssl_read_memory( ssl->in_msg + min_len,
-                                 max_len - min_len + ssl->transform_in->maclen );
-        }
-        else
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
-              MBEDTLS_SSL_PROTO_TLS1_2 */
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-#if defined(MBEDTLS_SSL_DEBUG_ALL)
-        MBEDTLS_SSL_DEBUG_BUF( 4, "expected mac", mac_expect, ssl->transform_in->maclen );
-        MBEDTLS_SSL_DEBUG_BUF( 4, "message  mac", ssl->in_msg + ssl->in_msglen,
-                               ssl->transform_in->maclen );
-#endif
-
-        if( mbedtls_ssl_safer_memcmp( ssl->in_msg + ssl->in_msglen, mac_expect,
-                                      ssl->transform_in->maclen ) != 0 )
-        {
-#if defined(MBEDTLS_SSL_DEBUG_ALL)
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "message mac does not match" ) );
-#endif
-            correct = 0;
-        }
-        auth_done++;
-    }
-
-    /*
-     * Finally check the correct flag
-     */
-    if( correct == 0 )
-        return( MBEDTLS_ERR_SSL_INVALID_MAC );
-#endif /* SSL_SOME_MODES_USE_MAC */
-
-    /* Make extra sure authentication was performed, exactly once */
-    if( auth_done != 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    if( ssl->in_msglen == 0 )
-    {
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3
-            && ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA )
-        {
-            /* TLS v1.2 explicitly disallows zero-length messages which are not application data */
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid zero-length message type: %d", ssl->in_msgtype ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-        }
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-        ssl->nb_zero++;
-
-        /*
-         * Three or more empty messages may be a DoS attack
-         * (excessive CPU consumption).
-         */
-        if( ssl->nb_zero > 3 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "received four consecutive empty "
-                                "messages, possible DoS attack" ) );
-            return( MBEDTLS_ERR_SSL_INVALID_MAC );
-        }
-    }
-    else
-        ssl->nb_zero = 0;
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        ; /* in_ctr read from peer, not maintained internally */
-    }
-    else
-#endif
-    {
-        unsigned char i;
-        for( i = 8; i > ssl_ep_len( ssl ); i-- )
-            if( ++ssl->in_ctr[i - 1] != 0 )
-                break;
-
-        /* The loop goes to its end iff the counter is wrapping */
-        if( i == ssl_ep_len( ssl ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "incoming message counter would wrap" ) );
-            return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
-        }
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= decrypt buf" ) );
-
-    return( 0 );
-}
-
-#undef MAC_NONE
-#undef MAC_PLAINTEXT
-#undef MAC_CIPHERTEXT
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-/*
- * Compression/decompression functions
- */
-static int ssl_compress_buf( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    unsigned char *msg_post = ssl->out_msg;
-    ptrdiff_t bytes_written = ssl->out_msg - ssl->out_buf;
-    size_t len_pre = ssl->out_msglen;
-    unsigned char *msg_pre = ssl->compress_buf;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> compress buf" ) );
-
-    if( len_pre == 0 )
-        return( 0 );
-
-    memcpy( msg_pre, ssl->out_msg, len_pre );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "before compression: msglen = %d, ",
-                   ssl->out_msglen ) );
-
-    MBEDTLS_SSL_DEBUG_BUF( 4, "before compression: output payload",
-                   ssl->out_msg, ssl->out_msglen );
-
-    ssl->transform_out->ctx_deflate.next_in = msg_pre;
-    ssl->transform_out->ctx_deflate.avail_in = len_pre;
-    ssl->transform_out->ctx_deflate.next_out = msg_post;
-    ssl->transform_out->ctx_deflate.avail_out = MBEDTLS_SSL_OUT_BUFFER_LEN - bytes_written;
-
-    ret = deflate( &ssl->transform_out->ctx_deflate, Z_SYNC_FLUSH );
-    if( ret != Z_OK )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "failed to perform compression (%d)", ret ) );
-        return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED );
-    }
-
-    ssl->out_msglen = MBEDTLS_SSL_OUT_BUFFER_LEN -
-                      ssl->transform_out->ctx_deflate.avail_out - bytes_written;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "after compression: msglen = %d, ",
-                   ssl->out_msglen ) );
-
-    MBEDTLS_SSL_DEBUG_BUF( 4, "after compression: output payload",
-                   ssl->out_msg, ssl->out_msglen );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= compress buf" ) );
-
-    return( 0 );
-}
-
-static int ssl_decompress_buf( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    unsigned char *msg_post = ssl->in_msg;
-    ptrdiff_t header_bytes = ssl->in_msg - ssl->in_buf;
-    size_t len_pre = ssl->in_msglen;
-    unsigned char *msg_pre = ssl->compress_buf;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> decompress buf" ) );
-
-    if( len_pre == 0 )
-        return( 0 );
-
-    memcpy( msg_pre, ssl->in_msg, len_pre );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "before decompression: msglen = %d, ",
-                   ssl->in_msglen ) );
-
-    MBEDTLS_SSL_DEBUG_BUF( 4, "before decompression: input payload",
-                   ssl->in_msg, ssl->in_msglen );
-
-    ssl->transform_in->ctx_inflate.next_in = msg_pre;
-    ssl->transform_in->ctx_inflate.avail_in = len_pre;
-    ssl->transform_in->ctx_inflate.next_out = msg_post;
-    ssl->transform_in->ctx_inflate.avail_out = MBEDTLS_SSL_IN_BUFFER_LEN -
-                                               header_bytes;
-
-    ret = inflate( &ssl->transform_in->ctx_inflate, Z_SYNC_FLUSH );
-    if( ret != Z_OK )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "failed to perform decompression (%d)", ret ) );
-        return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED );
-    }
-
-    ssl->in_msglen = MBEDTLS_SSL_IN_BUFFER_LEN -
-                     ssl->transform_in->ctx_inflate.avail_out - header_bytes;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "after decompression: msglen = %d, ",
-                   ssl->in_msglen ) );
-
-    MBEDTLS_SSL_DEBUG_BUF( 4, "after decompression: input payload",
-                   ssl->in_msg, ssl->in_msglen );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= decompress buf" ) );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_ZLIB_SUPPORT */
-
-#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
-static int ssl_write_hello_request( mbedtls_ssl_context *ssl );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-static int ssl_resend_hello_request( mbedtls_ssl_context *ssl )
-{
-    /* If renegotiation is not enforced, retransmit until we would reach max
-     * timeout if we were using the usual handshake doubling scheme */
-    if( ssl->conf->renego_max_records < 0 )
-    {
-        uint32_t ratio = ssl->conf->hs_timeout_max / ssl->conf->hs_timeout_min + 1;
-        unsigned char doublings = 1;
-
-        while( ratio != 0 )
-        {
-            ++doublings;
-            ratio >>= 1;
-        }
-
-        if( ++ssl->renego_records_seen > doublings )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "no longer retransmitting hello request" ) );
-            return( 0 );
-        }
-    }
-
-    return( ssl_write_hello_request( ssl ) );
-}
-#endif
-#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */
-
-/*
- * Fill the input message buffer by appending data to it.
- * The amount of data already fetched is in ssl->in_left.
- *
- * If we return 0, is it guaranteed that (at least) nb_want bytes are
- * available (from this read and/or a previous one). Otherwise, an error code
- * is returned (possibly EOF or WANT_READ).
- *
- * With stream transport (TLS) on success ssl->in_left == nb_want, but
- * with datagram transport (DTLS) on success ssl->in_left >= nb_want,
- * since we always read a whole datagram at once.
- *
- * For DTLS, it is up to the caller to set ssl->next_record_offset when
- * they're done reading a record.
- */
-int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want )
-{
-    int ret;
-    size_t len;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> fetch input" ) );
-
-    if( ssl->f_recv == NULL && ssl->f_recv_timeout == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() "
-                            "or mbedtls_ssl_set_bio()" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    if( nb_want > MBEDTLS_SSL_IN_BUFFER_LEN - (size_t)( ssl->in_hdr - ssl->in_buf ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "requesting more data than fits" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        uint32_t timeout;
-
-        /* Just to be sure */
-        if( ssl->f_set_timer == NULL || ssl->f_get_timer == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "You must use "
-                        "mbedtls_ssl_set_timer_cb() for DTLS" ) );
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-        }
-
-        /*
-         * The point is, we need to always read a full datagram at once, so we
-         * sometimes read more then requested, and handle the additional data.
-         * It could be the rest of the current record (while fetching the
-         * header) and/or some other records in the same datagram.
-         */
-
-        /*
-         * Move to the next record in the already read datagram if applicable
-         */
-        if( ssl->next_record_offset != 0 )
-        {
-            if( ssl->in_left < ssl->next_record_offset )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-            }
-
-            ssl->in_left -= ssl->next_record_offset;
-
-            if( ssl->in_left != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "next record in same datagram, offset: %d",
-                                    ssl->next_record_offset ) );
-                memmove( ssl->in_hdr,
-                         ssl->in_hdr + ssl->next_record_offset,
-                         ssl->in_left );
-            }
-
-            ssl->next_record_offset = 0;
-        }
-
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
-                       ssl->in_left, nb_want ) );
-
-        /*
-         * Done if we already have enough data.
-         */
-        if( nb_want <= ssl->in_left)
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= fetch input" ) );
-            return( 0 );
-        }
-
-        /*
-         * A record can't be split across datagrams. If we need to read but
-         * are not at the beginning of a new record, the caller did something
-         * wrong.
-         */
-        if( ssl->in_left != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        /*
-         * Don't even try to read if time's out already.
-         * This avoids by-passing the timer when repeatedly receiving messages
-         * that will end up being dropped.
-         */
-        if( ssl_check_timer( ssl ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "timer has expired" ) );
-            ret = MBEDTLS_ERR_SSL_TIMEOUT;
-        }
-        else
-        {
-            len = MBEDTLS_SSL_IN_BUFFER_LEN - ( ssl->in_hdr - ssl->in_buf );
-
-            if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-                timeout = ssl->handshake->retransmit_timeout;
-            else
-                timeout = ssl->conf->read_timeout;
-
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "f_recv_timeout: %u ms", timeout ) );
-
-            if( ssl->f_recv_timeout != NULL )
-                ret = ssl->f_recv_timeout( ssl->p_bio, ssl->in_hdr, len,
-                                                                    timeout );
-            else
-                ret = ssl->f_recv( ssl->p_bio, ssl->in_hdr, len );
-
-            MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret );
-
-            if( ret == 0 )
-                return( MBEDTLS_ERR_SSL_CONN_EOF );
-        }
-
-        if( ret == MBEDTLS_ERR_SSL_TIMEOUT )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "timeout" ) );
-            ssl_set_timer( ssl, 0 );
-
-            if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-            {
-                if( ssl_double_retransmit_timeout( ssl ) != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake timeout" ) );
-                    return( MBEDTLS_ERR_SSL_TIMEOUT );
-                }
-
-                if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret );
-                    return( ret );
-                }
-
-                return( MBEDTLS_ERR_SSL_WANT_READ );
-            }
-#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
-            else if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
-                     ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
-            {
-                if( ( ret = ssl_resend_hello_request( ssl ) ) != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_RET( 1, "ssl_resend_hello_request", ret );
-                    return( ret );
-                }
-
-                return( MBEDTLS_ERR_SSL_WANT_READ );
-            }
-#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */
-        }
-
-        if( ret < 0 )
-            return( ret );
-
-        ssl->in_left = ret;
-    }
-    else
-#endif
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
-                       ssl->in_left, nb_want ) );
-
-        while( ssl->in_left < nb_want )
-        {
-            len = nb_want - ssl->in_left;
-
-            if( ssl_check_timer( ssl ) != 0 )
-                ret = MBEDTLS_ERR_SSL_TIMEOUT;
-            else
-            {
-                if( ssl->f_recv_timeout != NULL )
-                {
-                    ret = ssl->f_recv_timeout( ssl->p_bio,
-                                               ssl->in_hdr + ssl->in_left, len,
-                                               ssl->conf->read_timeout );
-                }
-                else
-                {
-                    ret = ssl->f_recv( ssl->p_bio,
-                                       ssl->in_hdr + ssl->in_left, len );
-                }
-            }
-
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
-                                        ssl->in_left, nb_want ) );
-            MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret );
-
-            if( ret == 0 )
-                return( MBEDTLS_ERR_SSL_CONN_EOF );
-
-            if( ret < 0 )
-                return( ret );
-
-            if ( (size_t)ret > len || ( INT_MAX > SIZE_MAX && ret > SIZE_MAX ) )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1,
-                    ( "f_recv returned %d bytes but only %lu were requested",
-                    ret, (unsigned long)len ) );
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-            }
-
-            ssl->in_left += ret;
-        }
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= fetch input" ) );
-
-    return( 0 );
-}
-
-/*
- * Flush any data not yet written
- */
-int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    unsigned char *buf;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> flush output" ) );
-
-    if( ssl->f_send == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() "
-                            "or mbedtls_ssl_set_bio()" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    /* Avoid incrementing counter if data is flushed */
-    if( ssl->out_left == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= flush output" ) );
-        return( 0 );
-    }
-
-    while( ssl->out_left > 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "message length: %d, out_left: %d",
-                       mbedtls_ssl_hdr_len( ssl ) + ssl->out_msglen, ssl->out_left ) );
-
-        buf = ssl->out_hdr - ssl->out_left;
-        ret = ssl->f_send( ssl->p_bio, buf, ssl->out_left );
-
-        MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_send", ret );
-
-        if( ret <= 0 )
-            return( ret );
-
-        if( (size_t)ret > ssl->out_left || ( INT_MAX > SIZE_MAX && ret > SIZE_MAX ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1,
-                ( "f_send returned %d bytes but only %lu bytes were sent",
-                ret, (unsigned long)ssl->out_left ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        ssl->out_left -= ret;
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        ssl->out_hdr = ssl->out_buf;
-    }
-    else
-#endif
-    {
-        ssl->out_hdr = ssl->out_buf + 8;
-    }
-    ssl_update_out_pointers( ssl, ssl->transform_out );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= flush output" ) );
-
-    return( 0 );
-}
-
-/*
- * Functions to handle the DTLS retransmission state machine
- */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-/*
- * Append current handshake message to current outgoing flight
- */
-static int ssl_flight_append( mbedtls_ssl_context *ssl )
-{
-    mbedtls_ssl_flight_item *msg;
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_flight_append" ) );
-    MBEDTLS_SSL_DEBUG_BUF( 4, "message appended to flight",
-                           ssl->out_msg, ssl->out_msglen );
-
-    /* Allocate space for current message */
-    if( ( msg = mbedtls_calloc( 1, sizeof(  mbedtls_ssl_flight_item ) ) ) == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %d bytes failed",
-                            sizeof( mbedtls_ssl_flight_item ) ) );
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    }
-
-    if( ( msg->p = mbedtls_calloc( 1, ssl->out_msglen ) ) == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %d bytes failed", ssl->out_msglen ) );
-        mbedtls_free( msg );
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    }
-
-    /* Copy current handshake message with headers */
-    memcpy( msg->p, ssl->out_msg, ssl->out_msglen );
-    msg->len = ssl->out_msglen;
-    msg->type = ssl->out_msgtype;
-    msg->next = NULL;
-
-    /* Append to the current flight */
-    if( ssl->handshake->flight == NULL )
-        ssl->handshake->flight = msg;
-    else
-    {
-        mbedtls_ssl_flight_item *cur = ssl->handshake->flight;
-        while( cur->next != NULL )
-            cur = cur->next;
-        cur->next = msg;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_flight_append" ) );
-    return( 0 );
-}
-
-/*
- * Free the current flight of handshake messages
- */
-static void ssl_flight_free( mbedtls_ssl_flight_item *flight )
-{
-    mbedtls_ssl_flight_item *cur = flight;
-    mbedtls_ssl_flight_item *next;
-
-    while( cur != NULL )
-    {
-        next = cur->next;
-
-        mbedtls_free( cur->p );
-        mbedtls_free( cur );
-
-        cur = next;
-    }
-}
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-static void ssl_dtls_replay_reset( mbedtls_ssl_context *ssl );
-#endif
-
-/*
- * Swap transform_out and out_ctr with the alternative ones
- */
-static void ssl_swap_epochs( mbedtls_ssl_context *ssl )
-{
-    mbedtls_ssl_transform *tmp_transform;
-    unsigned char tmp_out_ctr[8];
-
-    if( ssl->transform_out == ssl->handshake->alt_transform_out )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip swap epochs" ) );
-        return;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "swap epochs" ) );
-
-    /* Swap transforms */
-    tmp_transform                     = ssl->transform_out;
-    ssl->transform_out                = ssl->handshake->alt_transform_out;
-    ssl->handshake->alt_transform_out = tmp_transform;
-
-    /* Swap epoch + sequence_number */
-    memcpy( tmp_out_ctr,                 ssl->cur_out_ctr,            8 );
-    memcpy( ssl->cur_out_ctr,            ssl->handshake->alt_out_ctr, 8 );
-    memcpy( ssl->handshake->alt_out_ctr, tmp_out_ctr,                 8 );
-
-    /* Adjust to the newly activated transform */
-    ssl_update_out_pointers( ssl, ssl->transform_out );
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_activate != NULL )
-    {
-        if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-    }
-#endif
-}
-
-/*
- * Retransmit the current flight of messages.
- */
-int mbedtls_ssl_resend( mbedtls_ssl_context *ssl )
-{
-    int ret = 0;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> mbedtls_ssl_resend" ) );
-
-    ret = mbedtls_ssl_flight_transmit( ssl );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= mbedtls_ssl_resend" ) );
-
-    return( ret );
-}
-
-/*
- * Transmit or retransmit the current flight of messages.
- *
- * Need to remember the current message in case flush_output returns
- * WANT_WRITE, causing us to exit this function and come back later.
- * This function must be called until state is no longer SENDING.
- */
-int mbedtls_ssl_flight_transmit( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> mbedtls_ssl_flight_transmit" ) );
-
-    if( ssl->handshake->retransmit_state != MBEDTLS_SSL_RETRANS_SENDING )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialise flight transmission" ) );
-
-        ssl->handshake->cur_msg = ssl->handshake->flight;
-        ssl->handshake->cur_msg_p = ssl->handshake->flight->p + 12;
-        ssl_swap_epochs( ssl );
-
-        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_SENDING;
-    }
-
-    while( ssl->handshake->cur_msg != NULL )
-    {
-        size_t max_frag_len;
-        const mbedtls_ssl_flight_item * const cur = ssl->handshake->cur_msg;
-
-        int const is_finished =
-            ( cur->type == MBEDTLS_SSL_MSG_HANDSHAKE &&
-              cur->p[0] == MBEDTLS_SSL_HS_FINISHED );
-
-        uint8_t const force_flush = ssl->disable_datagram_packing == 1 ?
-            SSL_FORCE_FLUSH : SSL_DONT_FORCE_FLUSH;
-
-        /* Swap epochs before sending Finished: we can't do it after
-         * sending ChangeCipherSpec, in case write returns WANT_READ.
-         * Must be done before copying, may change out_msg pointer */
-        if( is_finished && ssl->handshake->cur_msg_p == ( cur->p + 12 ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "swap epochs to send finished message" ) );
-            ssl_swap_epochs( ssl );
-        }
-
-        ret = ssl_get_remaining_payload_in_datagram( ssl );
-        if( ret < 0 )
-            return( ret );
-        max_frag_len = (size_t) ret;
-
-        /* CCS is copied as is, while HS messages may need fragmentation */
-        if( cur->type == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
-        {
-            if( max_frag_len == 0 )
-            {
-                if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-                    return( ret );
-
-                continue;
-            }
-
-            memcpy( ssl->out_msg, cur->p, cur->len );
-            ssl->out_msglen  = cur->len;
-            ssl->out_msgtype = cur->type;
-
-            /* Update position inside current message */
-            ssl->handshake->cur_msg_p += cur->len;
-        }
-        else
-        {
-            const unsigned char * const p = ssl->handshake->cur_msg_p;
-            const size_t hs_len = cur->len - 12;
-            const size_t frag_off = p - ( cur->p + 12 );
-            const size_t rem_len = hs_len - frag_off;
-            size_t cur_hs_frag_len, max_hs_frag_len;
-
-            if( ( max_frag_len < 12 ) || ( max_frag_len == 12 && hs_len != 0 ) )
-            {
-                if( is_finished )
-                    ssl_swap_epochs( ssl );
-
-                if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-                    return( ret );
-
-                continue;
-            }
-            max_hs_frag_len = max_frag_len - 12;
-
-            cur_hs_frag_len = rem_len > max_hs_frag_len ?
-                max_hs_frag_len : rem_len;
-
-            if( frag_off == 0 && cur_hs_frag_len != hs_len )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "fragmenting handshake message (%u > %u)",
-                                            (unsigned) cur_hs_frag_len,
-                                            (unsigned) max_hs_frag_len ) );
-            }
-
-            /* Messages are stored with handshake headers as if not fragmented,
-             * copy beginning of headers then fill fragmentation fields.
-             * Handshake headers: type(1) len(3) seq(2) f_off(3) f_len(3) */
-            memcpy( ssl->out_msg, cur->p, 6 );
-
-            ssl->out_msg[6] = ( ( frag_off >> 16 ) & 0xff );
-            ssl->out_msg[7] = ( ( frag_off >>  8 ) & 0xff );
-            ssl->out_msg[8] = ( ( frag_off       ) & 0xff );
-
-            ssl->out_msg[ 9] = ( ( cur_hs_frag_len >> 16 ) & 0xff );
-            ssl->out_msg[10] = ( ( cur_hs_frag_len >>  8 ) & 0xff );
-            ssl->out_msg[11] = ( ( cur_hs_frag_len       ) & 0xff );
-
-            MBEDTLS_SSL_DEBUG_BUF( 3, "handshake header", ssl->out_msg, 12 );
-
-            /* Copy the handshake message content and set records fields */
-            memcpy( ssl->out_msg + 12, p, cur_hs_frag_len );
-            ssl->out_msglen = cur_hs_frag_len + 12;
-            ssl->out_msgtype = cur->type;
-
-            /* Update position inside current message */
-            ssl->handshake->cur_msg_p += cur_hs_frag_len;
-        }
-
-        /* If done with the current message move to the next one if any */
-        if( ssl->handshake->cur_msg_p >= cur->p + cur->len )
-        {
-            if( cur->next != NULL )
-            {
-                ssl->handshake->cur_msg = cur->next;
-                ssl->handshake->cur_msg_p = cur->next->p + 12;
-            }
-            else
-            {
-                ssl->handshake->cur_msg = NULL;
-                ssl->handshake->cur_msg_p = NULL;
-            }
-        }
-
-        /* Actually send the message out */
-        if( ( ret = mbedtls_ssl_write_record( ssl, force_flush ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret );
-            return( ret );
-        }
-    }
-
-    if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-        return( ret );
-
-    /* Update state and set timer */
-    if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER )
-        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED;
-    else
-    {
-        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING;
-        ssl_set_timer( ssl, ssl->handshake->retransmit_timeout );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= mbedtls_ssl_flight_transmit" ) );
-
-    return( 0 );
-}
-
-/*
- * To be called when the last message of an incoming flight is received.
- */
-void mbedtls_ssl_recv_flight_completed( mbedtls_ssl_context *ssl )
-{
-    /* We won't need to resend that one any more */
-    ssl_flight_free( ssl->handshake->flight );
-    ssl->handshake->flight = NULL;
-    ssl->handshake->cur_msg = NULL;
-
-    /* The next incoming flight will start with this msg_seq */
-    ssl->handshake->in_flight_start_seq = ssl->handshake->in_msg_seq;
-
-    /* We don't want to remember CCS's across flight boundaries. */
-    ssl->handshake->buffering.seen_ccs = 0;
-
-    /* Clear future message buffering structure. */
-    ssl_buffering_free( ssl );
-
-    /* Cancel timer */
-    ssl_set_timer( ssl, 0 );
-
-    if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-        ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED )
-    {
-        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED;
-    }
-    else
-        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING;
-}
-
-/*
- * To be called when the last message of an outgoing flight is send.
- */
-void mbedtls_ssl_send_flight_completed( mbedtls_ssl_context *ssl )
-{
-    ssl_reset_retransmit_timeout( ssl );
-    ssl_set_timer( ssl, ssl->handshake->retransmit_timeout );
-
-    if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-        ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED )
-    {
-        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED;
-    }
-    else
-        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING;
-}
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-/*
- * Handshake layer functions
- */
-
-/*
- * Write (DTLS: or queue) current handshake (including CCS) message.
- *
- *  - fill in handshake headers
- *  - update handshake checksum
- *  - DTLS: save message for resending
- *  - then pass to the record layer
- *
- * DTLS: except for HelloRequest, messages are only queued, and will only be
- * actually sent when calling flight_transmit() or resend().
- *
- * Inputs:
- *  - ssl->out_msglen: 4 + actual handshake message len
- *      (4 is the size of handshake headers for TLS)
- *  - ssl->out_msg[0]: the handshake type (ClientHello, ServerHello, etc)
- *  - ssl->out_msg + 4: the handshake message body
- *
- * Outputs, ie state before passing to flight_append() or write_record():
- *   - ssl->out_msglen: the length of the record contents
- *      (including handshake headers but excluding record headers)
- *   - ssl->out_msg: the record contents (handshake headers + content)
- */
-int mbedtls_ssl_write_handshake_msg( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    const size_t hs_len = ssl->out_msglen - 4;
-    const unsigned char hs_type = ssl->out_msg[0];
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write handshake message" ) );
-
-    /*
-     * Sanity checks
-     */
-    if( ssl->out_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE          &&
-        ssl->out_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
-    {
-        /* In SSLv3, the client might send a NoCertificate alert. */
-#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_CLI_C)
-        if( ! ( ssl->minor_ver      == MBEDTLS_SSL_MINOR_VERSION_0 &&
-                ssl->out_msgtype    == MBEDTLS_SSL_MSG_ALERT       &&
-                ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) )
-#endif /* MBEDTLS_SSL_PROTO_SSL3 && MBEDTLS_SSL_SRV_C */
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-    }
-
-    /* Whenever we send anything different from a
-     * HelloRequest we should be in a handshake - double check. */
-    if( ! ( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-            hs_type          == MBEDTLS_SSL_HS_HELLO_REQUEST ) &&
-        ssl->handshake == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake != NULL &&
-        ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-#endif
-
-    /* Double-check that we did not exceed the bounds
-     * of the outgoing record buffer.
-     * This should never fail as the various message
-     * writing functions must obey the bounds of the
-     * outgoing record buffer, but better be safe.
-     *
-     * Note: We deliberately do not check for the MTU or MFL here.
-     */
-    if( ssl->out_msglen > MBEDTLS_SSL_OUT_CONTENT_LEN )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Record too large: "
-                                    "size %u, maximum %u",
-                                    (unsigned) ssl->out_msglen,
-                                    (unsigned) MBEDTLS_SSL_OUT_CONTENT_LEN ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    /*
-     * Fill handshake headers
-     */
-    if( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        ssl->out_msg[1] = (unsigned char)( hs_len >> 16 );
-        ssl->out_msg[2] = (unsigned char)( hs_len >>  8 );
-        ssl->out_msg[3] = (unsigned char)( hs_len       );
-
-        /*
-         * DTLS has additional fields in the Handshake layer,
-         * between the length field and the actual payload:
-         *      uint16 message_seq;
-         *      uint24 fragment_offset;
-         *      uint24 fragment_length;
-         */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
-            /* Make room for the additional DTLS fields */
-            if( MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen < 8 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS handshake message too large: "
-                              "size %u, maximum %u",
-                               (unsigned) ( hs_len ),
-                               (unsigned) ( MBEDTLS_SSL_OUT_CONTENT_LEN - 12 ) ) );
-                return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-            }
-
-            memmove( ssl->out_msg + 12, ssl->out_msg + 4, hs_len );
-            ssl->out_msglen += 8;
-
-            /* Write message_seq and update it, except for HelloRequest */
-            if( hs_type != MBEDTLS_SSL_HS_HELLO_REQUEST )
-            {
-                ssl->out_msg[4] = ( ssl->handshake->out_msg_seq >> 8 ) & 0xFF;
-                ssl->out_msg[5] = ( ssl->handshake->out_msg_seq      ) & 0xFF;
-                ++( ssl->handshake->out_msg_seq );
-            }
-            else
-            {
-                ssl->out_msg[4] = 0;
-                ssl->out_msg[5] = 0;
-            }
-
-            /* Handshake hashes are computed without fragmentation,
-             * so set frag_offset = 0 and frag_len = hs_len for now */
-            memset( ssl->out_msg + 6, 0x00, 3 );
-            memcpy( ssl->out_msg + 9, ssl->out_msg + 1, 3 );
-        }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-        /* Update running hashes of handshake messages seen */
-        if( hs_type != MBEDTLS_SSL_HS_HELLO_REQUEST )
-            ssl->handshake->update_checksum( ssl, ssl->out_msg, ssl->out_msglen );
-    }
-
-    /* Either send now, or just save to be sent (and resent) later */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ! ( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-            hs_type          == MBEDTLS_SSL_HS_HELLO_REQUEST ) )
-    {
-        if( ( ret = ssl_flight_append( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_flight_append", ret );
-            return( ret );
-        }
-    }
-    else
-#endif
-    {
-        if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_write_record", ret );
-            return( ret );
-        }
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write handshake message" ) );
-
-    return( 0 );
-}
-
-/*
- * Record layer functions
- */
-
-/*
- * Write current record.
- *
- * Uses:
- *  - ssl->out_msgtype: type of the message (AppData, Handshake, Alert, CCS)
- *  - ssl->out_msglen: length of the record content (excl headers)
- *  - ssl->out_msg: record content
- */
-int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush )
-{
-    int ret, done = 0;
-    size_t len = ssl->out_msglen;
-    uint8_t flush = force_flush;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write record" ) );
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    if( ssl->transform_out != NULL &&
-        ssl->session_out->compression == MBEDTLS_SSL_COMPRESS_DEFLATE )
-    {
-        if( ( ret = ssl_compress_buf( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_compress_buf", ret );
-            return( ret );
-        }
-
-        len = ssl->out_msglen;
-    }
-#endif /*MBEDTLS_ZLIB_SUPPORT */
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_write != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_write()" ) );
-
-        ret = mbedtls_ssl_hw_record_write( ssl );
-        if( ret != 0 && ret != MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_write", ret );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-
-        if( ret == 0 )
-            done = 1;
-    }
-#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
-    if( !done )
-    {
-        unsigned i;
-        size_t protected_record_size;
-
-        ssl->out_hdr[0] = (unsigned char) ssl->out_msgtype;
-        mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
-                           ssl->conf->transport, ssl->out_hdr + 1 );
-
-        memcpy( ssl->out_ctr, ssl->cur_out_ctr, 8 );
-        ssl->out_len[0] = (unsigned char)( len >> 8 );
-        ssl->out_len[1] = (unsigned char)( len      );
-
-        if( ssl->transform_out != NULL )
-        {
-            if( ( ret = ssl_encrypt_buf( ssl ) ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "ssl_encrypt_buf", ret );
-                return( ret );
-            }
-
-            len = ssl->out_msglen;
-            ssl->out_len[0] = (unsigned char)( len >> 8 );
-            ssl->out_len[1] = (unsigned char)( len      );
-        }
-
-        protected_record_size = len + mbedtls_ssl_hdr_len( ssl );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-        /* In case of DTLS, double-check that we don't exceed
-         * the remaining space in the datagram. */
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
-            ret = ssl_get_remaining_space_in_datagram( ssl );
-            if( ret < 0 )
-                return( ret );
-
-            if( protected_record_size > (size_t) ret )
-            {
-                /* Should never happen */
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-            }
-        }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "output record: msgtype = %d, "
-                                    "version = [%d:%d], msglen = %d",
-                                    ssl->out_hdr[0], ssl->out_hdr[1],
-                                    ssl->out_hdr[2], len ) );
-
-        MBEDTLS_SSL_DEBUG_BUF( 4, "output record sent to network",
-                               ssl->out_hdr, protected_record_size );
-
-        ssl->out_left += protected_record_size;
-        ssl->out_hdr  += protected_record_size;
-        ssl_update_out_pointers( ssl, ssl->transform_out );
-
-        for( i = 8; i > ssl_ep_len( ssl ); i-- )
-            if( ++ssl->cur_out_ctr[i - 1] != 0 )
-                break;
-
-        /* The loop goes to its end iff the counter is wrapping */
-        if( i == ssl_ep_len( ssl ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "outgoing message counter would wrap" ) );
-            return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
-        }
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        flush == SSL_DONT_FORCE_FLUSH )
-    {
-        size_t remaining;
-        ret = ssl_get_remaining_payload_in_datagram( ssl );
-        if( ret < 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_remaining_payload_in_datagram",
-                                   ret );
-            return( ret );
-        }
-
-        remaining = (size_t) ret;
-        if( remaining == 0 )
-        {
-            flush = SSL_FORCE_FLUSH;
-        }
-        else
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "Still %u bytes available in current datagram", (unsigned) remaining ) );
-        }
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    if( ( flush == SSL_FORCE_FLUSH ) &&
-        ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flush_output", ret );
-        return( ret );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write record" ) );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-
-static int ssl_hs_is_proper_fragment( mbedtls_ssl_context *ssl )
-{
-    if( ssl->in_msglen < ssl->in_hslen ||
-        memcmp( ssl->in_msg + 6, "\0\0\0",        3 ) != 0 ||
-        memcmp( ssl->in_msg + 9, ssl->in_msg + 1, 3 ) != 0 )
-    {
-        return( 1 );
-    }
-    return( 0 );
-}
-
-static uint32_t ssl_get_hs_frag_len( mbedtls_ssl_context const *ssl )
-{
-    return( ( ssl->in_msg[9] << 16  ) |
-            ( ssl->in_msg[10] << 8  ) |
-              ssl->in_msg[11] );
-}
-
-static uint32_t ssl_get_hs_frag_off( mbedtls_ssl_context const *ssl )
-{
-    return( ( ssl->in_msg[6] << 16 ) |
-            ( ssl->in_msg[7] << 8  ) |
-              ssl->in_msg[8] );
-}
-
-static int ssl_check_hs_header( mbedtls_ssl_context const *ssl )
-{
-    uint32_t msg_len, frag_off, frag_len;
-
-    msg_len  = ssl_get_hs_total_len( ssl );
-    frag_off = ssl_get_hs_frag_off( ssl );
-    frag_len = ssl_get_hs_frag_len( ssl );
-
-    if( frag_off > msg_len )
-        return( -1 );
-
-    if( frag_len > msg_len - frag_off )
-        return( -1 );
-
-    if( frag_len + 12 > ssl->in_msglen )
-        return( -1 );
-
-    return( 0 );
-}
-
-/*
- * Mark bits in bitmask (used for DTLS HS reassembly)
- */
-static void ssl_bitmask_set( unsigned char *mask, size_t offset, size_t len )
-{
-    unsigned int start_bits, end_bits;
-
-    start_bits = 8 - ( offset % 8 );
-    if( start_bits != 8 )
-    {
-        size_t first_byte_idx = offset / 8;
-
-        /* Special case */
-        if( len <= start_bits )
-        {
-            for( ; len != 0; len-- )
-                mask[first_byte_idx] |= 1 << ( start_bits - len );
-
-            /* Avoid potential issues with offset or len becoming invalid */
-            return;
-        }
-
-        offset += start_bits; /* Now offset % 8 == 0 */
-        len -= start_bits;
-
-        for( ; start_bits != 0; start_bits-- )
-            mask[first_byte_idx] |= 1 << ( start_bits - 1 );
-    }
-
-    end_bits = len % 8;
-    if( end_bits != 0 )
-    {
-        size_t last_byte_idx = ( offset + len ) / 8;
-
-        len -= end_bits; /* Now len % 8 == 0 */
-
-        for( ; end_bits != 0; end_bits-- )
-            mask[last_byte_idx] |= 1 << ( 8 - end_bits );
-    }
-
-    memset( mask + offset / 8, 0xFF, len / 8 );
-}
-
-/*
- * Check that bitmask is full
- */
-static int ssl_bitmask_check( unsigned char *mask, size_t len )
-{
-    size_t i;
-
-    for( i = 0; i < len / 8; i++ )
-        if( mask[i] != 0xFF )
-            return( -1 );
-
-    for( i = 0; i < len % 8; i++ )
-        if( ( mask[len / 8] & ( 1 << ( 7 - i ) ) ) == 0 )
-            return( -1 );
-
-    return( 0 );
-}
-
-/* msg_len does not include the handshake header */
-static size_t ssl_get_reassembly_buffer_size( size_t msg_len,
-                                              unsigned add_bitmap )
-{
-    size_t alloc_len;
-
-    alloc_len  = 12;                                 /* Handshake header */
-    alloc_len += msg_len;                            /* Content buffer   */
-
-    if( add_bitmap )
-        alloc_len += msg_len / 8 + ( msg_len % 8 != 0 ); /* Bitmap       */
-
-    return( alloc_len );
-}
-
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-static uint32_t ssl_get_hs_total_len( mbedtls_ssl_context const *ssl )
-{
-    return( ( ssl->in_msg[1] << 16 ) |
-            ( ssl->in_msg[2] << 8  ) |
-              ssl->in_msg[3] );
-}
-
-int mbedtls_ssl_prepare_handshake_record( mbedtls_ssl_context *ssl )
-{
-    if( ssl->in_msglen < mbedtls_ssl_hs_hdr_len( ssl ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake message too short: %d",
-                            ssl->in_msglen ) );
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-    }
-
-    ssl->in_hslen = mbedtls_ssl_hs_hdr_len( ssl ) + ssl_get_hs_total_len( ssl );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "handshake message: msglen ="
-                        " %d, type = %d, hslen = %d",
-                        ssl->in_msglen, ssl->in_msg[0], ssl->in_hslen ) );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        int ret;
-        unsigned int recv_msg_seq = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5];
-
-        if( ssl_check_hs_header( ssl ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid handshake header" ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-        }
-
-        if( ssl->handshake != NULL &&
-            ( ( ssl->state   != MBEDTLS_SSL_HANDSHAKE_OVER &&
-                recv_msg_seq != ssl->handshake->in_msg_seq ) ||
-              ( ssl->state  == MBEDTLS_SSL_HANDSHAKE_OVER &&
-                ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO ) ) )
-        {
-            if( recv_msg_seq > ssl->handshake->in_msg_seq )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "received future handshake message of sequence number %u (next %u)",
-                                            recv_msg_seq,
-                                            ssl->handshake->in_msg_seq ) );
-                return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
-            }
-
-            /* Retransmit only on last message from previous flight, to avoid
-             * too many retransmissions.
-             * Besides, No sane server ever retransmits HelloVerifyRequest */
-            if( recv_msg_seq == ssl->handshake->in_flight_start_seq - 1 &&
-                ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "received message from last flight, "
-                                    "message_seq = %d, start_of_flight = %d",
-                                    recv_msg_seq,
-                                    ssl->handshake->in_flight_start_seq ) );
-
-                if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret );
-                    return( ret );
-                }
-            }
-            else
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "dropping out-of-sequence message: "
-                                    "message_seq = %d, expected = %d",
-                                    recv_msg_seq,
-                                    ssl->handshake->in_msg_seq ) );
-            }
-
-            return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING );
-        }
-        /* Wait until message completion to increment in_msg_seq */
-
-        /* Message reassembly is handled alongside buffering of future
-         * messages; the commonality is that both handshake fragments and
-         * future messages cannot be forwarded immediately to the
-         * handshake logic layer. */
-        if( ssl_hs_is_proper_fragment( ssl ) == 1 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "found fragmented DTLS handshake message" ) );
-            return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
-        }
-    }
-    else
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-    /* With TLS we don't handle fragmentation (for now) */
-    if( ssl->in_msglen < ssl->in_hslen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLS handshake fragmentation not supported" ) );
-        return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-    }
-
-    return( 0 );
-}
-
-void mbedtls_ssl_update_handshake_status( mbedtls_ssl_context *ssl )
-{
-    mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-
-    if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER && hs != NULL )
-    {
-        ssl->handshake->update_checksum( ssl, ssl->in_msg, ssl->in_hslen );
-    }
-
-    /* Handshake message is complete, increment counter */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake != NULL )
-    {
-        unsigned offset;
-        mbedtls_ssl_hs_buffer *hs_buf;
-
-        /* Increment handshake sequence number */
-        hs->in_msg_seq++;
-
-        /*
-         * Clear up handshake buffering and reassembly structure.
-         */
-
-        /* Free first entry */
-        ssl_buffering_free_slot( ssl, 0 );
-
-        /* Shift all other entries */
-        for( offset = 0, hs_buf = &hs->buffering.hs[0];
-             offset + 1 < MBEDTLS_SSL_MAX_BUFFERED_HS;
-             offset++, hs_buf++ )
-        {
-            *hs_buf = *(hs_buf + 1);
-        }
-
-        /* Create a fresh last entry */
-        memset( hs_buf, 0, sizeof( mbedtls_ssl_hs_buffer ) );
-    }
-#endif
-}
-
-/*
- * DTLS anti-replay: RFC 6347 4.1.2.6
- *
- * in_window is a field of bits numbered from 0 (lsb) to 63 (msb).
- * Bit n is set iff record number in_window_top - n has been seen.
- *
- * Usually, in_window_top is the last record number seen and the lsb of
- * in_window is set. The only exception is the initial state (record number 0
- * not seen yet).
- */
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-static void ssl_dtls_replay_reset( mbedtls_ssl_context *ssl )
-{
-    ssl->in_window_top = 0;
-    ssl->in_window = 0;
-}
-
-static inline uint64_t ssl_load_six_bytes( unsigned char *buf )
-{
-    return( ( (uint64_t) buf[0] << 40 ) |
-            ( (uint64_t) buf[1] << 32 ) |
-            ( (uint64_t) buf[2] << 24 ) |
-            ( (uint64_t) buf[3] << 16 ) |
-            ( (uint64_t) buf[4] <<  8 ) |
-            ( (uint64_t) buf[5]       ) );
-}
-
-/*
- * Return 0 if sequence number is acceptable, -1 otherwise
- */
-int mbedtls_ssl_dtls_replay_check( mbedtls_ssl_context *ssl )
-{
-    uint64_t rec_seqnum = ssl_load_six_bytes( ssl->in_ctr + 2 );
-    uint64_t bit;
-
-    if( ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED )
-        return( 0 );
-
-    if( rec_seqnum > ssl->in_window_top )
-        return( 0 );
-
-    bit = ssl->in_window_top - rec_seqnum;
-
-    if( bit >= 64 )
-        return( -1 );
-
-    if( ( ssl->in_window & ( (uint64_t) 1 << bit ) ) != 0 )
-        return( -1 );
-
-    return( 0 );
-}
-
-/*
- * Update replay window on new validated record
- */
-void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl )
-{
-    uint64_t rec_seqnum = ssl_load_six_bytes( ssl->in_ctr + 2 );
-
-    if( ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED )
-        return;
-
-    if( rec_seqnum > ssl->in_window_top )
-    {
-        /* Update window_top and the contents of the window */
-        uint64_t shift = rec_seqnum - ssl->in_window_top;
-
-        if( shift >= 64 )
-            ssl->in_window = 1;
-        else
-        {
-            ssl->in_window <<= shift;
-            ssl->in_window |= 1;
-        }
-
-        ssl->in_window_top = rec_seqnum;
-    }
-    else
-    {
-        /* Mark that number as seen in the current window */
-        uint64_t bit = ssl->in_window_top - rec_seqnum;
-
-        if( bit < 64 ) /* Always true, but be extra sure */
-            ssl->in_window |= (uint64_t) 1 << bit;
-    }
-}
-#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
-
-#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
-/* Forward declaration */
-static int ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial );
-
-/*
- * Without any SSL context, check if a datagram looks like a ClientHello with
- * a valid cookie, and if it doesn't, generate a HelloVerifyRequest message.
- * Both input and output include full DTLS headers.
- *
- * - if cookie is valid, return 0
- * - if ClientHello looks superficially valid but cookie is not,
- *   fill obuf and set olen, then
- *   return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED
- * - otherwise return a specific error code
- */
-static int ssl_check_dtls_clihlo_cookie(
-                           mbedtls_ssl_cookie_write_t *f_cookie_write,
-                           mbedtls_ssl_cookie_check_t *f_cookie_check,
-                           void *p_cookie,
-                           const unsigned char *cli_id, size_t cli_id_len,
-                           const unsigned char *in, size_t in_len,
-                           unsigned char *obuf, size_t buf_len, size_t *olen )
-{
-    size_t sid_len, cookie_len;
-    unsigned char *p;
-
-    if( f_cookie_write == NULL || f_cookie_check == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    /*
-     * Structure of ClientHello with record and handshake headers,
-     * and expected values. We don't need to check a lot, more checks will be
-     * done when actually parsing the ClientHello - skipping those checks
-     * avoids code duplication and does not make cookie forging any easier.
-     *
-     *  0-0  ContentType type;                  copied, must be handshake
-     *  1-2  ProtocolVersion version;           copied
-     *  3-4  uint16 epoch;                      copied, must be 0
-     *  5-10 uint48 sequence_number;            copied
-     * 11-12 uint16 length;                     (ignored)
-     *
-     * 13-13 HandshakeType msg_type;            (ignored)
-     * 14-16 uint24 length;                     (ignored)
-     * 17-18 uint16 message_seq;                copied
-     * 19-21 uint24 fragment_offset;            copied, must be 0
-     * 22-24 uint24 fragment_length;            (ignored)
-     *
-     * 25-26 ProtocolVersion client_version;    (ignored)
-     * 27-58 Random random;                     (ignored)
-     * 59-xx SessionID session_id;              1 byte len + sid_len content
-     * 60+   opaque cookie<0..2^8-1>;           1 byte len + content
-     *       ...
-     *
-     * Minimum length is 61 bytes.
-     */
-    if( in_len < 61 ||
-        in[0] != MBEDTLS_SSL_MSG_HANDSHAKE ||
-        in[3] != 0 || in[4] != 0 ||
-        in[19] != 0 || in[20] != 0 || in[21] != 0 )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-    }
-
-    sid_len = in[59];
-    if( sid_len > in_len - 61 )
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-
-    cookie_len = in[60 + sid_len];
-    if( cookie_len > in_len - 60 )
-        return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
-
-    if( f_cookie_check( p_cookie, in + sid_len + 61, cookie_len,
-                        cli_id, cli_id_len ) == 0 )
-    {
-        /* Valid cookie */
-        return( 0 );
-    }
-
-    /*
-     * If we get here, we've got an invalid cookie, let's prepare HVR.
-     *
-     *  0-0  ContentType type;                  copied
-     *  1-2  ProtocolVersion version;           copied
-     *  3-4  uint16 epoch;                      copied
-     *  5-10 uint48 sequence_number;            copied
-     * 11-12 uint16 length;                     olen - 13
-     *
-     * 13-13 HandshakeType msg_type;            hello_verify_request
-     * 14-16 uint24 length;                     olen - 25
-     * 17-18 uint16 message_seq;                copied
-     * 19-21 uint24 fragment_offset;            copied
-     * 22-24 uint24 fragment_length;            olen - 25
-     *
-     * 25-26 ProtocolVersion server_version;    0xfe 0xff
-     * 27-27 opaque cookie<0..2^8-1>;           cookie_len = olen - 27, cookie
-     *
-     * Minimum length is 28.
-     */
-    if( buf_len < 28 )
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
-
-    /* Copy most fields and adapt others */
-    memcpy( obuf, in, 25 );
-    obuf[13] = MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST;
-    obuf[25] = 0xfe;
-    obuf[26] = 0xff;
-
-    /* Generate and write actual cookie */
-    p = obuf + 28;
-    if( f_cookie_write( p_cookie,
-                        &p, obuf + buf_len, cli_id, cli_id_len ) != 0 )
-    {
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    *olen = p - obuf;
-
-    /* Go back and fill length fields */
-    obuf[27] = (unsigned char)( *olen - 28 );
-
-    obuf[14] = obuf[22] = (unsigned char)( ( *olen - 25 ) >> 16 );
-    obuf[15] = obuf[23] = (unsigned char)( ( *olen - 25 ) >>  8 );
-    obuf[16] = obuf[24] = (unsigned char)( ( *olen - 25 )       );
-
-    obuf[11] = (unsigned char)( ( *olen - 13 ) >>  8 );
-    obuf[12] = (unsigned char)( ( *olen - 13 )       );
-
-    return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED );
-}
-
-/*
- * Handle possible client reconnect with the same UDP quadruplet
- * (RFC 6347 Section 4.2.8).
- *
- * Called by ssl_parse_record_header() in case we receive an epoch 0 record
- * that looks like a ClientHello.
- *
- * - if the input looks like a ClientHello without cookies,
- *   send back HelloVerifyRequest, then
- *   return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED
- * - if the input looks like a ClientHello with a valid cookie,
- *   reset the session of the current context, and
- *   return MBEDTLS_ERR_SSL_CLIENT_RECONNECT
- * - if anything goes wrong, return a specific error code
- *
- * mbedtls_ssl_read_record() will ignore the record if anything else than
- * MBEDTLS_ERR_SSL_CLIENT_RECONNECT or 0 is returned, although this function
- * cannot not return 0.
- */
-static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    size_t len;
-
-    ret = ssl_check_dtls_clihlo_cookie(
-            ssl->conf->f_cookie_write,
-            ssl->conf->f_cookie_check,
-            ssl->conf->p_cookie,
-            ssl->cli_id, ssl->cli_id_len,
-            ssl->in_buf, ssl->in_left,
-            ssl->out_buf, MBEDTLS_SSL_OUT_CONTENT_LEN, &len );
-
-    MBEDTLS_SSL_DEBUG_RET( 2, "ssl_check_dtls_clihlo_cookie", ret );
-
-    if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED )
-    {
-        /* Don't check write errors as we can't do anything here.
-         * If the error is permanent we'll catch it later,
-         * if it's not, then hopefully it'll work next time. */
-        (void) ssl->f_send( ssl->p_bio, ssl->out_buf, len );
-
-        return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED );
-    }
-
-    if( ret == 0 )
-    {
-        /* Got a valid cookie, partially reset context */
-        if( ( ret = ssl_session_reset_int( ssl, 1 ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "reset", ret );
-            return( ret );
-        }
-
-        return( MBEDTLS_ERR_SSL_CLIENT_RECONNECT );
-    }
-
-    return( ret );
-}
-#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
-
-/*
- * ContentType type;
- * ProtocolVersion version;
- * uint16 epoch;            // DTLS only
- * uint48 sequence_number;  // DTLS only
- * uint16 length;
- *
- * Return 0 if header looks sane (and, for DTLS, the record is expected)
- * MBEDTLS_ERR_SSL_INVALID_RECORD if the header looks bad,
- * MBEDTLS_ERR_SSL_UNEXPECTED_RECORD (DTLS only) if sane but unexpected.
- *
- * With DTLS, mbedtls_ssl_read_record() will:
- * 1. proceed with the record if this function returns 0
- * 2. drop only the current record if this function returns UNEXPECTED_RECORD
- * 3. return CLIENT_RECONNECT if this function return that value
- * 4. drop the whole datagram if this function returns anything else.
- * Point 2 is needed when the peer is resending, and we have already received
- * the first record from a datagram but are still waiting for the others.
- */
-static int ssl_parse_record_header( mbedtls_ssl_context *ssl )
-{
-    int major_ver, minor_ver;
-
-    MBEDTLS_SSL_DEBUG_BUF( 4, "input record header", ssl->in_hdr, mbedtls_ssl_hdr_len( ssl ) );
-
-    ssl->in_msgtype =  ssl->in_hdr[0];
-    ssl->in_msglen = ( ssl->in_len[0] << 8 ) | ssl->in_len[1];
-    mbedtls_ssl_read_version( &major_ver, &minor_ver, ssl->conf->transport, ssl->in_hdr + 1 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "input record: msgtype = %d, "
-                        "version = [%d:%d], msglen = %d",
-                        ssl->in_msgtype,
-                        major_ver, minor_ver, ssl->in_msglen ) );
-
-    /* Check record type */
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE &&
-        ssl->in_msgtype != MBEDTLS_SSL_MSG_ALERT &&
-        ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC &&
-        ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "unknown record type" ) );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-        /* Silently ignore invalid DTLS records as recommended by RFC 6347
-         * Section 4.1.2.7 */
-        if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                    MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-    }
-
-    /* Check version */
-    if( major_ver != ssl->major_ver )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "major version mismatch" ) );
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-    }
-
-    if( minor_ver > ssl->conf->max_minor_ver )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "minor version mismatch" ) );
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-    }
-
-    /* Check length against the size of our buffer */
-    if( ssl->in_msglen > MBEDTLS_SSL_IN_BUFFER_LEN
-                         - (size_t)( ssl->in_msg - ssl->in_buf ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-    }
-
-    /*
-     * DTLS-related tests.
-     * Check epoch before checking length constraint because
-     * the latter varies with the epoch. E.g., if a ChangeCipherSpec
-     * message gets duplicated before the corresponding Finished message,
-     * the second ChangeCipherSpec should be discarded because it belongs
-     * to an old epoch, but not because its length is shorter than
-     * the minimum record length for packets using the new record transform.
-     * Note that these two kinds of failures are handled differently,
-     * as an unexpected record is silently skipped but an invalid
-     * record leads to the entire datagram being dropped.
-     */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        unsigned int rec_epoch = ( ssl->in_ctr[0] << 8 ) | ssl->in_ctr[1];
-
-        /* Check epoch (and sequence number) with DTLS */
-        if( rec_epoch != ssl->in_epoch )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "record from another epoch: "
-                                        "expected %d, received %d",
-                                        ssl->in_epoch, rec_epoch ) );
-
-#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
-            /*
-             * Check for an epoch 0 ClientHello. We can't use in_msg here to
-             * access the first byte of record content (handshake type), as we
-             * have an active transform (possibly iv_len != 0), so use the
-             * fact that the record header len is 13 instead.
-             */
-            if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
-                ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER &&
-                rec_epoch == 0 &&
-                ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-                ssl->in_left > 13 &&
-                ssl->in_buf[13] == MBEDTLS_SSL_HS_CLIENT_HELLO )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "possible client reconnect "
-                                            "from the same port" ) );
-                return( ssl_handle_possible_reconnect( ssl ) );
-            }
-            else
-#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
-            {
-                /* Consider buffering the record. */
-                if( rec_epoch == (unsigned int) ssl->in_epoch + 1 )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 2, ( "Consider record for buffering" ) );
-                    return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
-                }
-
-                return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
-            }
-        }
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-        /* Replay detection only works for the current epoch */
-        if( rec_epoch == ssl->in_epoch &&
-            mbedtls_ssl_dtls_replay_check( ssl ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "replayed record" ) );
-            return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
-        }
-#endif
-
-        /* Drop unexpected ApplicationData records,
-         * except at the beginning of renegotiations */
-        if( ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA &&
-            ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-            && ! ( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
-                   ssl->state == MBEDTLS_SSL_SERVER_HELLO )
-#endif
-            )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "dropping unexpected ApplicationData" ) );
-            return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
-        }
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-
-    /* Check length against bounds of the current transform and version */
-    if( ssl->transform_in == NULL )
-    {
-        if( ssl->in_msglen < 1 ||
-            ssl->in_msglen > MBEDTLS_SSL_IN_CONTENT_LEN )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-        }
-    }
-    else
-    {
-        if( ssl->in_msglen < ssl->transform_in->minlen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-        }
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-        if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 &&
-            ssl->in_msglen > ssl->transform_in->minlen + MBEDTLS_SSL_IN_CONTENT_LEN )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-        }
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        /*
-         * TLS encrypted messages can have up to 256 bytes of padding
-         */
-        if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 &&
-            ssl->in_msglen > ssl->transform_in->minlen +
-                             MBEDTLS_SSL_IN_CONTENT_LEN + 256 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-        }
-#endif
-    }
-
-    return( 0 );
-}
-
-/*
- * If applicable, decrypt (and decompress) record content
- */
-static int ssl_prepare_record_content( mbedtls_ssl_context *ssl )
-{
-    int ret, done = 0;
-
-    MBEDTLS_SSL_DEBUG_BUF( 4, "input record from network",
-                   ssl->in_hdr, mbedtls_ssl_hdr_len( ssl ) + ssl->in_msglen );
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_read != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_read()" ) );
-
-        ret = mbedtls_ssl_hw_record_read( ssl );
-        if( ret != 0 && ret != MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_read", ret );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-
-        if( ret == 0 )
-            done = 1;
-    }
-#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
-    if( !done && ssl->transform_in != NULL )
-    {
-        if( ( ret = ssl_decrypt_buf( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_decrypt_buf", ret );
-            return( ret );
-        }
-
-        MBEDTLS_SSL_DEBUG_BUF( 4, "input payload after decrypt",
-                       ssl->in_msg, ssl->in_msglen );
-
-        if( ssl->in_msglen > MBEDTLS_SSL_IN_CONTENT_LEN )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-        }
-    }
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    if( ssl->transform_in != NULL &&
-        ssl->session_in->compression == MBEDTLS_SSL_COMPRESS_DEFLATE )
-    {
-        if( ( ret = ssl_decompress_buf( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_decompress_buf", ret );
-            return( ret );
-        }
-    }
-#endif /* MBEDTLS_ZLIB_SUPPORT */
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        mbedtls_ssl_dtls_replay_update( ssl );
-    }
-#endif
-
-    return( 0 );
-}
-
-static void ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl );
-
-/*
- * Read a record.
- *
- * Silently ignore non-fatal alert (and for DTLS, invalid records as well,
- * RFC 6347 4.1.2.7) and continue reading until a valid record is found.
- *
- */
-
-/* Helper functions for mbedtls_ssl_read_record(). */
-static int ssl_consume_current_message( mbedtls_ssl_context *ssl );
-static int ssl_get_next_record( mbedtls_ssl_context *ssl );
-static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl );
-
-int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl,
-                             unsigned update_hs_digest )
-{
-    int ret;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> read record" ) );
-
-    if( ssl->keep_current_message == 0 )
-    {
-        do {
-
-            ret = ssl_consume_current_message( ssl );
-            if( ret != 0 )
-                return( ret );
-
-            if( ssl_record_is_in_progress( ssl ) == 0 )
-            {
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-                int have_buffered = 0;
-
-                /* We only check for buffered messages if the
-                 * current datagram is fully consumed. */
-                if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-                    ssl_next_record_is_in_datagram( ssl ) == 0 )
-                {
-                    if( ssl_load_buffered_message( ssl ) == 0 )
-                        have_buffered = 1;
-                }
-
-                if( have_buffered == 0 )
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-                {
-                    ret = ssl_get_next_record( ssl );
-                    if( ret == MBEDTLS_ERR_SSL_CONTINUE_PROCESSING )
-                        continue;
-
-                    if( ret != 0 )
-                    {
-                        MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_get_next_record" ), ret );
-                        return( ret );
-                    }
-                }
-            }
-
-            ret = mbedtls_ssl_handle_message_type( ssl );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-            if( ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE )
-            {
-                /* Buffer future message */
-                ret = ssl_buffer_message( ssl );
-                if( ret != 0 )
-                    return( ret );
-
-                ret = MBEDTLS_ERR_SSL_CONTINUE_PROCESSING;
-            }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-        } while( MBEDTLS_ERR_SSL_NON_FATAL           == ret  ||
-                 MBEDTLS_ERR_SSL_CONTINUE_PROCESSING == ret );
-
-        if( 0 != ret )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_handle_message_type" ), ret );
-            return( ret );
-        }
-
-        if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-            update_hs_digest == 1 )
-        {
-            mbedtls_ssl_update_handshake_status( ssl );
-        }
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "reuse previously read message" ) );
-        ssl->keep_current_message = 0;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= read record" ) );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl )
-{
-    if( ssl->in_left > ssl->next_record_offset )
-        return( 1 );
-
-    return( 0 );
-}
-
-static int ssl_load_buffered_message( mbedtls_ssl_context *ssl )
-{
-    mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-    mbedtls_ssl_hs_buffer * hs_buf;
-    int ret = 0;
-
-    if( hs == NULL )
-        return( -1 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_load_buffered_messsage" ) );
-
-    if( ssl->state == MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC ||
-        ssl->state == MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC )
-    {
-        /* Check if we have seen a ChangeCipherSpec before.
-         * If yes, synthesize a CCS record. */
-        if( !hs->buffering.seen_ccs )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "CCS not seen in the current flight" ) );
-            ret = -1;
-            goto exit;
-        }
-
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Injecting buffered CCS message" ) );
-        ssl->in_msgtype = MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC;
-        ssl->in_msglen = 1;
-        ssl->in_msg[0] = 1;
-
-        /* As long as they are equal, the exact value doesn't matter. */
-        ssl->in_left            = 0;
-        ssl->next_record_offset = 0;
-
-        hs->buffering.seen_ccs = 0;
-        goto exit;
-    }
-
-#if defined(MBEDTLS_DEBUG_C)
-    /* Debug only */
-    {
-        unsigned offset;
-        for( offset = 1; offset < MBEDTLS_SSL_MAX_BUFFERED_HS; offset++ )
-        {
-            hs_buf = &hs->buffering.hs[offset];
-            if( hs_buf->is_valid == 1 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "Future message with sequence number %u %s buffered.",
-                            hs->in_msg_seq + offset,
-                            hs_buf->is_complete ? "fully" : "partially" ) );
-            }
-        }
-    }
-#endif /* MBEDTLS_DEBUG_C */
-
-    /* Check if we have buffered and/or fully reassembled the
-     * next handshake message. */
-    hs_buf = &hs->buffering.hs[0];
-    if( ( hs_buf->is_valid == 1 ) && ( hs_buf->is_complete == 1 ) )
-    {
-        /* Synthesize a record containing the buffered HS message. */
-        size_t msg_len = ( hs_buf->data[1] << 16 ) |
-                         ( hs_buf->data[2] << 8  ) |
-                           hs_buf->data[3];
-
-        /* Double-check that we haven't accidentally buffered
-         * a message that doesn't fit into the input buffer. */
-        if( msg_len + 12 > MBEDTLS_SSL_IN_CONTENT_LEN )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Next handshake message has been buffered - load" ) );
-        MBEDTLS_SSL_DEBUG_BUF( 3, "Buffered handshake message (incl. header)",
-                               hs_buf->data, msg_len + 12 );
-
-        ssl->in_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-        ssl->in_hslen   = msg_len + 12;
-        ssl->in_msglen  = msg_len + 12;
-        memcpy( ssl->in_msg, hs_buf->data, ssl->in_hslen );
-
-        ret = 0;
-        goto exit;
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Next handshake message %u not or only partially bufffered",
-                                    hs->in_msg_seq ) );
-    }
-
-    ret = -1;
-
-exit:
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_load_buffered_message" ) );
-    return( ret );
-}
-
-static int ssl_buffer_make_space( mbedtls_ssl_context *ssl,
-                                  size_t desired )
-{
-    int offset;
-    mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "Attempt to free buffered messages to have %u bytes available",
-                                (unsigned) desired ) );
-
-    /* Get rid of future records epoch first, if such exist. */
-    ssl_free_buffered_record( ssl );
-
-    /* Check if we have enough space available now. */
-    if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
-                     hs->buffering.total_bytes_buffered ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing future epoch record" ) );
-        return( 0 );
-    }
-
-    /* We don't have enough space to buffer the next expected handshake
-     * message. Remove buffers used for future messages to gain space,
-     * starting with the most distant one. */
-    for( offset = MBEDTLS_SSL_MAX_BUFFERED_HS - 1;
-         offset >= 0; offset-- )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Free buffering slot %d to make space for reassembly of next handshake message",
-                                    offset ) );
-
-        ssl_buffering_free_slot( ssl, (uint8_t) offset );
-
-        /* Check if we have enough space available now. */
-        if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
-                         hs->buffering.total_bytes_buffered ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing buffered HS messages" ) );
-            return( 0 );
-        }
-    }
-
-    return( -1 );
-}
-
-static int ssl_buffer_message( mbedtls_ssl_context *ssl )
-{
-    int ret = 0;
-    mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-
-    if( hs == NULL )
-        return( 0 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_buffer_message" ) );
-
-    switch( ssl->in_msgtype )
-    {
-        case MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC:
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "Remember CCS message" ) );
-
-            hs->buffering.seen_ccs = 1;
-            break;
-
-        case MBEDTLS_SSL_MSG_HANDSHAKE:
-        {
-            unsigned recv_msg_seq_offset;
-            unsigned recv_msg_seq = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5];
-            mbedtls_ssl_hs_buffer *hs_buf;
-            size_t msg_len = ssl->in_hslen - 12;
-
-            /* We should never receive an old handshake
-             * message - double-check nonetheless. */
-            if( recv_msg_seq < ssl->handshake->in_msg_seq )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-            }
-
-            recv_msg_seq_offset = recv_msg_seq - ssl->handshake->in_msg_seq;
-            if( recv_msg_seq_offset >= MBEDTLS_SSL_MAX_BUFFERED_HS )
-            {
-                /* Silently ignore -- message too far in the future */
-                MBEDTLS_SSL_DEBUG_MSG( 2,
-                 ( "Ignore future HS message with sequence number %u, "
-                   "buffering window %u - %u",
-                   recv_msg_seq, ssl->handshake->in_msg_seq,
-                   ssl->handshake->in_msg_seq + MBEDTLS_SSL_MAX_BUFFERED_HS - 1 ) );
-
-                goto exit;
-            }
-
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering HS message with sequence number %u, offset %u ",
-                                        recv_msg_seq, recv_msg_seq_offset ) );
-
-            hs_buf = &hs->buffering.hs[ recv_msg_seq_offset ];
-
-            /* Check if the buffering for this seq nr has already commenced. */
-            if( !hs_buf->is_valid )
-            {
-                size_t reassembly_buf_sz;
-
-                hs_buf->is_fragmented =
-                    ( ssl_hs_is_proper_fragment( ssl ) == 1 );
-
-                /* We copy the message back into the input buffer
-                 * after reassembly, so check that it's not too large.
-                 * This is an implementation-specific limitation
-                 * and not one from the standard, hence it is not
-                 * checked in ssl_check_hs_header(). */
-                if( msg_len + 12 > MBEDTLS_SSL_IN_CONTENT_LEN )
-                {
-                    /* Ignore message */
-                    goto exit;
-                }
-
-                /* Check if we have enough space to buffer the message. */
-                if( hs->buffering.total_bytes_buffered >
-                    MBEDTLS_SSL_DTLS_MAX_BUFFERING )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-                }
-
-                reassembly_buf_sz = ssl_get_reassembly_buffer_size( msg_len,
-                                                       hs_buf->is_fragmented );
-
-                if( reassembly_buf_sz > ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
-                                          hs->buffering.total_bytes_buffered ) )
-                {
-                    if( recv_msg_seq_offset > 0 )
-                    {
-                        /* If we can't buffer a future message because
-                         * of space limitations -- ignore. */
-                        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future message of size %u would exceed the compile-time limit %u (already %u bytes buffered) -- ignore\n",
-                             (unsigned) msg_len, MBEDTLS_SSL_DTLS_MAX_BUFFERING,
-                             (unsigned) hs->buffering.total_bytes_buffered ) );
-                        goto exit;
-                    }
-                    else
-                    {
-                        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future message of size %u would exceed the compile-time limit %u (already %u bytes buffered) -- attempt to make space by freeing buffered future messages\n",
-                             (unsigned) msg_len, MBEDTLS_SSL_DTLS_MAX_BUFFERING,
-                             (unsigned) hs->buffering.total_bytes_buffered ) );
-                    }
-
-                    if( ssl_buffer_make_space( ssl, reassembly_buf_sz ) != 0 )
-                    {
-                        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reassembly of next message of size %u (%u with bitmap) would exceed the compile-time limit %u (already %u bytes buffered) -- fail\n",
-                             (unsigned) msg_len,
-                             (unsigned) reassembly_buf_sz,
-                             MBEDTLS_SSL_DTLS_MAX_BUFFERING,
-                             (unsigned) hs->buffering.total_bytes_buffered ) );
-                        ret = MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
-                        goto exit;
-                    }
-                }
-
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialize reassembly, total length = %d",
-                                            msg_len ) );
-
-                hs_buf->data = mbedtls_calloc( 1, reassembly_buf_sz );
-                if( hs_buf->data == NULL )
-                {
-                    ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
-                    goto exit;
-                }
-                hs_buf->data_len = reassembly_buf_sz;
-
-                /* Prepare final header: copy msg_type, length and message_seq,
-                 * then add standardised fragment_offset and fragment_length */
-                memcpy( hs_buf->data, ssl->in_msg, 6 );
-                memset( hs_buf->data + 6, 0, 3 );
-                memcpy( hs_buf->data + 9, hs_buf->data + 1, 3 );
-
-                hs_buf->is_valid = 1;
-
-                hs->buffering.total_bytes_buffered += reassembly_buf_sz;
-            }
-            else
-            {
-                /* Make sure msg_type and length are consistent */
-                if( memcmp( hs_buf->data, ssl->in_msg, 4 ) != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "Fragment header mismatch - ignore" ) );
-                    /* Ignore */
-                    goto exit;
-                }
-            }
-
-            if( !hs_buf->is_complete )
-            {
-                size_t frag_len, frag_off;
-                unsigned char * const msg = hs_buf->data + 12;
-
-                /*
-                 * Check and copy current fragment
-                 */
-
-                /* Validation of header fields already done in
-                 * mbedtls_ssl_prepare_handshake_record(). */
-                frag_off = ssl_get_hs_frag_off( ssl );
-                frag_len = ssl_get_hs_frag_len( ssl );
-
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "adding fragment, offset = %d, length = %d",
-                                            frag_off, frag_len ) );
-                memcpy( msg + frag_off, ssl->in_msg + 12, frag_len );
-
-                if( hs_buf->is_fragmented )
-                {
-                    unsigned char * const bitmask = msg + msg_len;
-                    ssl_bitmask_set( bitmask, frag_off, frag_len );
-                    hs_buf->is_complete = ( ssl_bitmask_check( bitmask,
-                                                               msg_len ) == 0 );
-                }
-                else
-                {
-                    hs_buf->is_complete = 1;
-                }
-
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "message %scomplete",
-                                   hs_buf->is_complete ? "" : "not yet " ) );
-            }
-
-            break;
-        }
-
-        default:
-            /* We don't buffer other types of messages. */
-            break;
-    }
-
-exit:
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_buffer_message" ) );
-    return( ret );
-}
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-static int ssl_consume_current_message( mbedtls_ssl_context *ssl )
-{
-    /*
-     * Consume last content-layer message and potentially
-     * update in_msglen which keeps track of the contents'
-     * consumption state.
-     *
-     * (1) Handshake messages:
-     *     Remove last handshake message, move content
-     *     and adapt in_msglen.
-     *
-     * (2) Alert messages:
-     *     Consume whole record content, in_msglen = 0.
-     *
-     * (3) Change cipher spec:
-     *     Consume whole record content, in_msglen = 0.
-     *
-     * (4) Application data:
-     *     Don't do anything - the record layer provides
-     *     the application data as a stream transport
-     *     and consumes through mbedtls_ssl_read only.
-     *
-     */
-
-    /* Case (1): Handshake messages */
-    if( ssl->in_hslen != 0 )
-    {
-        /* Hard assertion to be sure that no application data
-         * is in flight, as corrupting ssl->in_msglen during
-         * ssl->in_offt != NULL is fatal. */
-        if( ssl->in_offt != NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-        }
-
-        /*
-         * Get next Handshake message in the current record
-         */
-
-        /* Notes:
-         * (1) in_hslen is not necessarily the size of the
-         *     current handshake content: If DTLS handshake
-         *     fragmentation is used, that's the fragment
-         *     size instead. Using the total handshake message
-         *     size here is faulty and should be changed at
-         *     some point.
-         * (2) While it doesn't seem to cause problems, one
-         *     has to be very careful not to assume that in_hslen
-         *     is always <= in_msglen in a sensible communication.
-         *     Again, it's wrong for DTLS handshake fragmentation.
-         *     The following check is therefore mandatory, and
-         *     should not be treated as a silently corrected assertion.
-         *     Additionally, ssl->in_hslen might be arbitrarily out of
-         *     bounds after handling a DTLS message with an unexpected
-         *     sequence number, see mbedtls_ssl_prepare_handshake_record.
-         */
-        if( ssl->in_hslen < ssl->in_msglen )
-        {
-            ssl->in_msglen -= ssl->in_hslen;
-            memmove( ssl->in_msg, ssl->in_msg + ssl->in_hslen,
-                     ssl->in_msglen );
-
-            MBEDTLS_SSL_DEBUG_BUF( 4, "remaining content in record",
-                                   ssl->in_msg, ssl->in_msglen );
-        }
-        else
-        {
-            ssl->in_msglen = 0;
-        }
-
-        ssl->in_hslen   = 0;
-    }
-    /* Case (4): Application data */
-    else if( ssl->in_offt != NULL )
-    {
-        return( 0 );
-    }
-    /* Everything else (CCS & Alerts) */
-    else
-    {
-        ssl->in_msglen = 0;
-    }
-
-    return( 0 );
-}
-
-static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl )
-{
-    if( ssl->in_msglen > 0 )
-        return( 1 );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-
-static void ssl_free_buffered_record( mbedtls_ssl_context *ssl )
-{
-    mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-    if( hs == NULL )
-        return;
-
-    if( hs->buffering.future_record.data != NULL )
-    {
-        hs->buffering.total_bytes_buffered -=
-            hs->buffering.future_record.len;
-
-        mbedtls_free( hs->buffering.future_record.data );
-        hs->buffering.future_record.data = NULL;
-    }
-}
-
-static int ssl_load_buffered_record( mbedtls_ssl_context *ssl )
-{
-    mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-    unsigned char * rec;
-    size_t rec_len;
-    unsigned rec_epoch;
-
-    if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        return( 0 );
-
-    if( hs == NULL )
-        return( 0 );
-
-    rec       = hs->buffering.future_record.data;
-    rec_len   = hs->buffering.future_record.len;
-    rec_epoch = hs->buffering.future_record.epoch;
-
-    if( rec == NULL )
-        return( 0 );
-
-    /* Only consider loading future records if the
-     * input buffer is empty. */
-    if( ssl_next_record_is_in_datagram( ssl ) == 1 )
-        return( 0 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_load_buffered_record" ) );
-
-    if( rec_epoch != ssl->in_epoch )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffered record not from current epoch." ) );
-        goto exit;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "Found buffered record from current epoch - load" ) );
-
-    /* Double-check that the record is not too large */
-    if( rec_len > MBEDTLS_SSL_IN_BUFFER_LEN -
-        (size_t)( ssl->in_hdr - ssl->in_buf ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    memcpy( ssl->in_hdr, rec, rec_len );
-    ssl->in_left = rec_len;
-    ssl->next_record_offset = 0;
-
-    ssl_free_buffered_record( ssl );
-
-exit:
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_load_buffered_record" ) );
-    return( 0 );
-}
-
-static int ssl_buffer_future_record( mbedtls_ssl_context *ssl )
-{
-    mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-    size_t const rec_hdr_len = 13;
-    size_t const total_buf_sz = rec_hdr_len + ssl->in_msglen;
-
-    /* Don't buffer future records outside handshakes. */
-    if( hs == NULL )
-        return( 0 );
-
-    /* Only buffer handshake records (we are only interested
-     * in Finished messages). */
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-        return( 0 );
-
-    /* Don't buffer more than one future epoch record. */
-    if( hs->buffering.future_record.data != NULL )
-        return( 0 );
-
-    /* Don't buffer record if there's not enough buffering space remaining. */
-    if( total_buf_sz > ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
-                         hs->buffering.total_bytes_buffered ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future epoch record of size %u would exceed the compile-time limit %u (already %u bytes buffered) -- ignore\n",
-                        (unsigned) total_buf_sz, MBEDTLS_SSL_DTLS_MAX_BUFFERING,
-                        (unsigned) hs->buffering.total_bytes_buffered ) );
-        return( 0 );
-    }
-
-    /* Buffer record */
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffer record from epoch %u",
-                                ssl->in_epoch + 1 ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "Buffered record", ssl->in_hdr,
-                           rec_hdr_len + ssl->in_msglen );
-
-    /* ssl_parse_record_header() only considers records
-     * of the next epoch as candidates for buffering. */
-    hs->buffering.future_record.epoch = ssl->in_epoch + 1;
-    hs->buffering.future_record.len   = total_buf_sz;
-
-    hs->buffering.future_record.data =
-        mbedtls_calloc( 1, hs->buffering.future_record.len );
-    if( hs->buffering.future_record.data == NULL )
-    {
-        /* If we run out of RAM trying to buffer a
-         * record from the next epoch, just ignore. */
-        return( 0 );
-    }
-
-    memcpy( hs->buffering.future_record.data, ssl->in_hdr, total_buf_sz );
-
-    hs->buffering.total_bytes_buffered += total_buf_sz;
-    return( 0 );
-}
-
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-static int ssl_get_next_record( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    /* We might have buffered a future record; if so,
-     * and if the epoch matches now, load it.
-     * On success, this call will set ssl->in_left to
-     * the length of the buffered record, so that
-     * the calls to ssl_fetch_input() below will
-     * essentially be no-ops. */
-    ret = ssl_load_buffered_record( ssl );
-    if( ret != 0 )
-        return( ret );
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    if( ( ret = mbedtls_ssl_fetch_input( ssl, mbedtls_ssl_hdr_len( ssl ) ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
-        return( ret );
-    }
-
-    if( ( ret = ssl_parse_record_header( ssl ) ) != 0 )
-    {
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-            ret != MBEDTLS_ERR_SSL_CLIENT_RECONNECT )
-        {
-            if( ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE )
-            {
-                ret = ssl_buffer_future_record( ssl );
-                if( ret != 0 )
-                    return( ret );
-
-                /* Fall through to handling of unexpected records */
-                ret = MBEDTLS_ERR_SSL_UNEXPECTED_RECORD;
-            }
-
-            if( ret == MBEDTLS_ERR_SSL_UNEXPECTED_RECORD )
-            {
-                /* Skip unexpected record (but not whole datagram) */
-                ssl->next_record_offset = ssl->in_msglen
-                                        + mbedtls_ssl_hdr_len( ssl );
-
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding unexpected record "
-                                            "(header)" ) );
-            }
-            else
-            {
-                /* Skip invalid record and the rest of the datagram */
-                ssl->next_record_offset = 0;
-                ssl->in_left = 0;
-
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding invalid record "
-                                            "(header)" ) );
-            }
-
-            /* Get next record */
-            return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING );
-        }
-#endif
-        return( ret );
-    }
-
-    /*
-     * Read and optionally decrypt the message contents
-     */
-    if( ( ret = mbedtls_ssl_fetch_input( ssl,
-                                 mbedtls_ssl_hdr_len( ssl ) + ssl->in_msglen ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
-        return( ret );
-    }
-
-    /* Done reading this record, get ready for the next one */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        ssl->next_record_offset = ssl->in_msglen + mbedtls_ssl_hdr_len( ssl );
-        if( ssl->next_record_offset < ssl->in_left )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "more than one record within datagram" ) );
-        }
-    }
-    else
-#endif
-        ssl->in_left = 0;
-
-    if( ( ret = ssl_prepare_record_content( ssl ) ) != 0 )
-    {
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
-            /* Silently discard invalid records */
-            if( ret == MBEDTLS_ERR_SSL_INVALID_RECORD ||
-                ret == MBEDTLS_ERR_SSL_INVALID_MAC )
-            {
-                /* Except when waiting for Finished as a bad mac here
-                 * probably means something went wrong in the handshake
-                 * (eg wrong psk used, mitm downgrade attempt, etc.) */
-                if( ssl->state == MBEDTLS_SSL_CLIENT_FINISHED ||
-                    ssl->state == MBEDTLS_SSL_SERVER_FINISHED )
-                {
-#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
-                    if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
-                    {
-                        mbedtls_ssl_send_alert_message( ssl,
-                                MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC );
-                    }
-#endif
-                    return( ret );
-                }
-
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-                if( ssl->conf->badmac_limit != 0 &&
-                    ++ssl->badmac_seen >= ssl->conf->badmac_limit )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "too many records with bad MAC" ) );
-                    return( MBEDTLS_ERR_SSL_INVALID_MAC );
-                }
-#endif
-
-                /* As above, invalid records cause
-                 * dismissal of the whole datagram. */
-
-                ssl->next_record_offset = 0;
-                ssl->in_left = 0;
-
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding invalid record (mac)" ) );
-                return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING );
-            }
-
-            return( ret );
-        }
-        else
-#endif
-        {
-            /* Error out (and send alert) on invalid records */
-#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
-            if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
-            {
-                mbedtls_ssl_send_alert_message( ssl,
-                        MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                        MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC );
-            }
-#endif
-            return( ret );
-        }
-    }
-
-    return( 0 );
-}
-
-int mbedtls_ssl_handle_message_type( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    /*
-     * Handle particular types of records
-     */
-    if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        if( ( ret = mbedtls_ssl_prepare_handshake_record( ssl ) ) != 0 )
-        {
-            return( ret );
-        }
-    }
-
-    if( ssl->in_msgtype == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
-    {
-        if( ssl->in_msglen != 1 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid CCS message, len: %d",
-                           ssl->in_msglen ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-        }
-
-        if( ssl->in_msg[0] != 1 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid CCS message, content: %02x",
-                                        ssl->in_msg[0] ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-        }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-            ssl->state != MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC    &&
-            ssl->state != MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC )
-        {
-            if( ssl->handshake == NULL )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "dropping ChangeCipherSpec outside handshake" ) );
-                return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
-            }
-
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "received out-of-order ChangeCipherSpec - remember" ) );
-            return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
-        }
-#endif
-    }
-
-    if( ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT )
-    {
-        if( ssl->in_msglen != 2 )
-        {
-            /* Note: Standard allows for more than one 2 byte alert
-               to be packed in a single message, but Mbed TLS doesn't
-               currently support this. */
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid alert message, len: %d",
-                           ssl->in_msglen ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
-        }
-
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "got an alert message, type: [%d:%d]",
-                       ssl->in_msg[0], ssl->in_msg[1] ) );
-
-        /*
-         * Ignore non-fatal alerts, except close_notify and no_renegotiation
-         */
-        if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_FATAL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "is a fatal alert message (msg %d)",
-                           ssl->in_msg[1] ) );
-            return( MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE );
-        }
-
-        if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
-            ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a close notify message" ) );
-            return( MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY );
-        }
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION_ENABLED)
-        if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
-            ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a SSLv3 no renegotiation alert" ) );
-            /* Will be handled when trying to parse ServerHello */
-            return( 0 );
-        }
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_SRV_C)
-        if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 &&
-            ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
-            ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
-            ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_CERT )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a SSLv3 no_cert" ) );
-            /* Will be handled in mbedtls_ssl_parse_certificate() */
-            return( 0 );
-        }
-#endif /* MBEDTLS_SSL_PROTO_SSL3 && MBEDTLS_SSL_SRV_C */
-
-        /* Silently ignore: fetch new message */
-        return MBEDTLS_ERR_SSL_NON_FATAL;
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake != NULL &&
-        ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER  )
-    {
-        ssl_handshake_wrapup_free_hs_transform( ssl );
-    }
-#endif
-
-    return( 0 );
-}
-
-int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    if( ( ret = mbedtls_ssl_send_alert_message( ssl,
-                    MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                    MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    return( 0 );
-}
-
-int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *ssl,
-                            unsigned char level,
-                            unsigned char message )
-{
-    int ret;
-
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> send alert message" ) );
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "send alert level=%u message=%u", level, message ));
-
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT;
-    ssl->out_msglen = 2;
-    ssl->out_msg[0] = level;
-    ssl->out_msg[1] = message;
-
-    if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret );
-        return( ret );
-    }
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= send alert message" ) );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-static void ssl_clear_peer_cert( mbedtls_ssl_session *session )
-{
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    if( session->peer_cert != NULL )
-    {
-        mbedtls_x509_crt_free( session->peer_cert );
-        mbedtls_free( session->peer_cert );
-        session->peer_cert = NULL;
-    }
-#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( session->peer_cert_digest != NULL )
-    {
-        /* Zeroization is not necessary. */
-        mbedtls_free( session->peer_cert_digest );
-        session->peer_cert_digest      = NULL;
-        session->peer_cert_digest_type = MBEDTLS_MD_NONE;
-        session->peer_cert_digest_len  = 0;
-    }
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-}
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-/*
- * Handshake functions
- */
-#if !defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-/* No certificate support -> dummy functions */
-int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl )
-{
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) );
-
-    if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-}
-
-int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl )
-{
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) );
-
-    if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-}
-
-#else /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-/* Some certificate support -> implement write and parse */
-
-int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl )
-{
-    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-    size_t i, n;
-    const mbedtls_x509_crt *crt;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) );
-
-    if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) );
-        ssl->state++;
-        return( 0 );
-    }
-
-#if defined(MBEDTLS_SSL_CLI_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-    {
-        if( ssl->client_auth == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) );
-            ssl->state++;
-            return( 0 );
-        }
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-        /*
-         * If using SSLv3 and got no cert, send an Alert message
-         * (otherwise an empty Certificate message will be sent).
-         */
-        if( mbedtls_ssl_own_cert( ssl )  == NULL &&
-            ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-        {
-            ssl->out_msglen  = 2;
-            ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT;
-            ssl->out_msg[0]  = MBEDTLS_SSL_ALERT_LEVEL_WARNING;
-            ssl->out_msg[1]  = MBEDTLS_SSL_ALERT_MSG_NO_CERT;
-
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "got no certificate to send" ) );
-            goto write_msg;
-        }
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-    }
-#endif /* MBEDTLS_SSL_CLI_C */
-#if defined(MBEDTLS_SSL_SRV_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
-        if( mbedtls_ssl_own_cert( ssl ) == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no certificate to send" ) );
-            return( MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED );
-        }
-    }
-#endif
-
-    MBEDTLS_SSL_DEBUG_CRT( 3, "own certificate", mbedtls_ssl_own_cert( ssl ) );
-
-    /*
-     *     0  .  0    handshake type
-     *     1  .  3    handshake length
-     *     4  .  6    length of all certs
-     *     7  .  9    length of cert. 1
-     *    10  . n-1   peer certificate
-     *     n  . n+2   length of cert. 2
-     *    n+3 . ...   upper level cert, etc.
-     */
-    i = 7;
-    crt = mbedtls_ssl_own_cert( ssl );
-
-    while( crt != NULL )
-    {
-        n = crt->raw.len;
-        if( n > MBEDTLS_SSL_OUT_CONTENT_LEN - 3 - i )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate too large, %d > %d",
-                           i + 3 + n, MBEDTLS_SSL_OUT_CONTENT_LEN ) );
-            return( MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE );
-        }
-
-        ssl->out_msg[i    ] = (unsigned char)( n >> 16 );
-        ssl->out_msg[i + 1] = (unsigned char)( n >>  8 );
-        ssl->out_msg[i + 2] = (unsigned char)( n       );
-
-        i += 3; memcpy( ssl->out_msg + i, crt->raw.p, n );
-        i += n; crt = crt->next;
-    }
-
-    ssl->out_msg[4]  = (unsigned char)( ( i - 7 ) >> 16 );
-    ssl->out_msg[5]  = (unsigned char)( ( i - 7 ) >>  8 );
-    ssl->out_msg[6]  = (unsigned char)( ( i - 7 )       );
-
-    ssl->out_msglen  = i;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_CERTIFICATE;
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_CLI_C)
-write_msg:
-#endif
-
-    ssl->state++;
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate" ) );
-
-    return( ret );
-}
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C)
-
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
-                                         unsigned char *crt_buf,
-                                         size_t crt_buf_len )
-{
-    mbedtls_x509_crt const * const peer_crt = ssl->session->peer_cert;
-
-    if( peer_crt == NULL )
-        return( -1 );
-
-    if( peer_crt->raw.len != crt_buf_len )
-        return( -1 );
-
-    return( memcmp( peer_crt->raw.p, crt_buf, crt_buf_len ) );
-}
-#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
-                                         unsigned char *crt_buf,
-                                         size_t crt_buf_len )
-{
-    int ret;
-    unsigned char const * const peer_cert_digest =
-        ssl->session->peer_cert_digest;
-    mbedtls_md_type_t const peer_cert_digest_type =
-        ssl->session->peer_cert_digest_type;
-    mbedtls_md_info_t const * const digest_info =
-        mbedtls_md_info_from_type( peer_cert_digest_type );
-    unsigned char tmp_digest[MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN];
-    size_t digest_len;
-
-    if( peer_cert_digest == NULL || digest_info == NULL )
-        return( -1 );
-
-    digest_len = mbedtls_md_get_size( digest_info );
-    if( digest_len > MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN )
-        return( -1 );
-
-    ret = mbedtls_md( digest_info, crt_buf, crt_buf_len, tmp_digest );
-    if( ret != 0 )
-        return( -1 );
-
-    return( memcmp( tmp_digest, peer_cert_digest, digest_len ) );
-}
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_SSL_RENEGOTIATION && MBEDTLS_SSL_CLI_C */
-
-/*
- * Once the certificate message is read, parse it into a cert chain and
- * perform basic checks, but leave actual verification to the caller
- */
-static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl,
-                                        mbedtls_x509_crt *chain )
-{
-    int ret;
-#if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C)
-    int crt_cnt=0;
-#endif
-    size_t i, n;
-    uint8_t alert;
-
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-    }
-
-    if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE ||
-        ssl->in_hslen < mbedtls_ssl_hs_hdr_len( ssl ) + 3 + 3 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
-    }
-
-    i = mbedtls_ssl_hs_hdr_len( ssl );
-
-    /*
-     * Same message structure as in mbedtls_ssl_write_certificate()
-     */
-    n = ( ssl->in_msg[i+1] << 8 ) | ssl->in_msg[i+2];
-
-    if( ssl->in_msg[i] != 0 ||
-        ssl->in_hslen != n + 3 + mbedtls_ssl_hs_hdr_len( ssl ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
-    }
-
-    /* Make &ssl->in_msg[i] point to the beginning of the CRT chain. */
-    i += 3;
-
-    /* Iterate through and parse the CRTs in the provided chain. */
-    while( i < ssl->in_hslen )
-    {
-        /* Check that there's room for the next CRT's length fields. */
-        if ( i + 3 > ssl->in_hslen ) {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-            mbedtls_ssl_send_alert_message( ssl,
-                              MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                              MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
-        }
-        /* In theory, the CRT can be up to 2**24 Bytes, but we don't support
-         * anything beyond 2**16 ~ 64K. */
-        if( ssl->in_msg[i] != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-            mbedtls_ssl_send_alert_message( ssl,
-                            MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
-        }
-
-        /* Read length of the next CRT in the chain. */
-        n = ( (unsigned int) ssl->in_msg[i + 1] << 8 )
-            | (unsigned int) ssl->in_msg[i + 2];
-        i += 3;
-
-        if( n < 128 || i + n > ssl->in_hslen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-            mbedtls_ssl_send_alert_message( ssl,
-                                 MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                 MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
-        }
-
-        /* Check if we're handling the first CRT in the chain. */
-#if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C)
-        if( crt_cnt++ == 0 &&
-            ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
-            ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-        {
-            /* During client-side renegotiation, check that the server's
-             * end-CRTs hasn't changed compared to the initial handshake,
-             * mitigating the triple handshake attack. On success, reuse
-             * the original end-CRT instead of parsing it again. */
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "Check that peer CRT hasn't changed during renegotiation" ) );
-            if( ssl_check_peer_crt_unchanged( ssl,
-                                              &ssl->in_msg[i],
-                                              n ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "new server cert during renegotiation" ) );
-                mbedtls_ssl_send_alert_message( ssl,
-                                                MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
-            }
-
-            /* Now we can safely free the original chain. */
-            ssl_clear_peer_cert( ssl->session );
-        }
-#endif /* MBEDTLS_SSL_RENEGOTIATION && MBEDTLS_SSL_CLI_C */
-
-        /* Parse the next certificate in the chain. */
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-        ret = mbedtls_x509_crt_parse_der( chain, ssl->in_msg + i, n );
-#else
-        /* If we don't need to store the CRT chain permanently, parse
-         * it in-place from the input buffer instead of making a copy. */
-        ret = mbedtls_x509_crt_parse_der_nocopy( chain, ssl->in_msg + i, n );
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-        switch( ret )
-        {
-            case 0: /*ok*/
-            case MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG + MBEDTLS_ERR_OID_NOT_FOUND:
-                /* Ignore certificate with an unknown algorithm: maybe a
-                   prior certificate was already trusted. */
-                break;
-
-            case MBEDTLS_ERR_X509_ALLOC_FAILED:
-                alert = MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR;
-                goto crt_parse_der_failed;
-
-            case MBEDTLS_ERR_X509_UNKNOWN_VERSION:
-                alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-                goto crt_parse_der_failed;
-
-            default:
-                alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT;
-            crt_parse_der_failed:
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, alert );
-                MBEDTLS_SSL_DEBUG_RET( 1, " mbedtls_x509_crt_parse_der", ret );
-                return( ret );
-        }
-
-        i += n;
-    }
-
-    MBEDTLS_SSL_DEBUG_CRT( 3, "peer certificate", chain );
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_SRV_C)
-static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl )
-{
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-        return( -1 );
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    /*
-     * Check if the client sent an empty certificate
-     */
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        if( ssl->in_msglen  == 2                        &&
-            ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT            &&
-            ssl->in_msg[0]  == MBEDTLS_SSL_ALERT_LEVEL_WARNING  &&
-            ssl->in_msg[1]  == MBEDTLS_SSL_ALERT_MSG_NO_CERT )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "SSLv3 client has no certificate" ) );
-            return( 0 );
-        }
-
-        return( -1 );
-    }
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->in_hslen   == 3 + mbedtls_ssl_hs_hdr_len( ssl ) &&
-        ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE    &&
-        ssl->in_msg[0]  == MBEDTLS_SSL_HS_CERTIFICATE   &&
-        memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ), "\0\0\0", 3 ) == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLSv1 client has no certificate" ) );
-        return( 0 );
-    }
-
-    return( -1 );
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
-          MBEDTLS_SSL_PROTO_TLS1_2 */
-}
-#endif /* MBEDTLS_SSL_SRV_C */
-
-/* Check if a certificate message is expected.
- * Return either
- * - SSL_CERTIFICATE_EXPECTED, or
- * - SSL_CERTIFICATE_SKIP
- * indicating whether a Certificate message is expected or not.
- */
-#define SSL_CERTIFICATE_EXPECTED 0
-#define SSL_CERTIFICATE_SKIP     1
-static int ssl_parse_certificate_coordinate( mbedtls_ssl_context *ssl,
-                                             int authmode )
-{
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-
-    if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) )
-        return( SSL_CERTIFICATE_SKIP );
-
-#if defined(MBEDTLS_SSL_SRV_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
-        if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
-            return( SSL_CERTIFICATE_SKIP );
-
-        if( authmode == MBEDTLS_SSL_VERIFY_NONE )
-        {
-            ssl->session_negotiate->verify_result =
-                MBEDTLS_X509_BADCERT_SKIP_VERIFY;
-            return( SSL_CERTIFICATE_SKIP );
-        }
-    }
-#else
-    ((void) authmode);
-#endif /* MBEDTLS_SSL_SRV_C */
-
-    return( SSL_CERTIFICATE_EXPECTED );
-}
-
-static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl,
-                                         int authmode,
-                                         mbedtls_x509_crt *chain,
-                                         void *rs_ctx )
-{
-    int ret = 0;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-        ssl->transform_negotiate->ciphersuite_info;
-    int have_ca_chain = 0;
-
-    int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *);
-    void *p_vrfy;
-
-    if( authmode == MBEDTLS_SSL_VERIFY_NONE )
-        return( 0 );
-
-    if( ssl->f_vrfy != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Use context-specific verification callback" ) );
-        f_vrfy = ssl->f_vrfy;
-        p_vrfy = ssl->p_vrfy;
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Use configuration-specific verification callback" ) );
-        f_vrfy = ssl->conf->f_vrfy;
-        p_vrfy = ssl->conf->p_vrfy;
-    }
-
-    /*
-     * Main check: verify certificate
-     */
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    if( ssl->conf->f_ca_cb != NULL )
-    {
-        ((void) rs_ctx);
-        have_ca_chain = 1;
-
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "use CA callback for X.509 CRT verification" ) );
-        ret = mbedtls_x509_crt_verify_with_ca_cb(
-            chain,
-            ssl->conf->f_ca_cb,
-            ssl->conf->p_ca_cb,
-            ssl->conf->cert_profile,
-            ssl->hostname,
-            &ssl->session_negotiate->verify_result,
-            f_vrfy, p_vrfy );
-    }
-    else
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-    {
-        mbedtls_x509_crt *ca_chain;
-        mbedtls_x509_crl *ca_crl;
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-        if( ssl->handshake->sni_ca_chain != NULL )
-        {
-            ca_chain = ssl->handshake->sni_ca_chain;
-            ca_crl   = ssl->handshake->sni_ca_crl;
-        }
-        else
-#endif
-        {
-            ca_chain = ssl->conf->ca_chain;
-            ca_crl   = ssl->conf->ca_crl;
-        }
-
-        if( ca_chain != NULL )
-            have_ca_chain = 1;
-
-        ret = mbedtls_x509_crt_verify_restartable(
-            chain,
-            ca_chain, ca_crl,
-            ssl->conf->cert_profile,
-            ssl->hostname,
-            &ssl->session_negotiate->verify_result,
-            f_vrfy, p_vrfy, rs_ctx );
-    }
-
-    if( ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "x509_verify_cert", ret );
-    }
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-        return( MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS );
-#endif
-
-    /*
-     * Secondary checks: always done, but change 'ret' only if it was 0
-     */
-
-#if defined(MBEDTLS_ECP_C)
-    {
-        const mbedtls_pk_context *pk = &chain->pk;
-
-        /* If certificate uses an EC key, make sure the curve is OK */
-        if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) &&
-            mbedtls_ssl_check_curve( ssl, mbedtls_pk_ec( *pk )->grp.id ) != 0 )
-        {
-            ssl->session_negotiate->verify_result |= MBEDTLS_X509_BADCERT_BAD_KEY;
-
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (EC key curve)" ) );
-            if( ret == 0 )
-                ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
-        }
-    }
-#endif /* MBEDTLS_ECP_C */
-
-    if( mbedtls_ssl_check_cert_usage( chain,
-                                      ciphersuite_info,
-                                      ! ssl->conf->endpoint,
-                                      &ssl->session_negotiate->verify_result ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (usage extensions)" ) );
-        if( ret == 0 )
-            ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
-    }
-
-    /* mbedtls_x509_crt_verify_with_profile is supposed to report a
-     * verification failure through MBEDTLS_ERR_X509_CERT_VERIFY_FAILED,
-     * with details encoded in the verification flags. All other kinds
-     * of error codes, including those from the user provided f_vrfy
-     * functions, are treated as fatal and lead to a failure of
-     * ssl_parse_certificate even if verification was optional. */
-    if( authmode == MBEDTLS_SSL_VERIFY_OPTIONAL &&
-        ( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED ||
-          ret == MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ) )
-    {
-        ret = 0;
-    }
-
-    if( have_ca_chain == 0 && authmode == MBEDTLS_SSL_VERIFY_REQUIRED )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no CA chain" ) );
-        ret = MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED;
-    }
-
-    if( ret != 0 )
-    {
-        uint8_t alert;
-
-        /* The certificate may have been rejected for several reasons.
-           Pick one and send the corresponding alert. Which alert to send
-           may be a subject of debate in some cases. */
-        if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_OTHER )
-            alert = MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_CN_MISMATCH )
-            alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_KEY_USAGE )
-            alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXT_KEY_USAGE )
-            alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NS_CERT_TYPE )
-            alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_PK )
-            alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_KEY )
-            alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXPIRED )
-            alert = MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_REVOKED )
-            alert = MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NOT_TRUSTED )
-            alert = MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA;
-        else
-            alert = MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN;
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        alert );
-    }
-
-#if defined(MBEDTLS_DEBUG_C)
-    if( ssl->session_negotiate->verify_result != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "! Certificate verification flags %x",
-                                    ssl->session_negotiate->verify_result ) );
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Certificate verification flags clear" ) );
-    }
-#endif /* MBEDTLS_DEBUG_C */
-
-    return( ret );
-}
-
-#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-static int ssl_remember_peer_crt_digest( mbedtls_ssl_context *ssl,
-                                         unsigned char *start, size_t len )
-{
-    int ret;
-    /* Remember digest of the peer's end-CRT. */
-    ssl->session_negotiate->peer_cert_digest =
-        mbedtls_calloc( 1, MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN );
-    if( ssl->session_negotiate->peer_cert_digest == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed",
-                                    sizeof( MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN ) ) );
-        mbedtls_ssl_send_alert_message( ssl,
-                                        MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    }
-
-    ret = mbedtls_md( mbedtls_md_info_from_type(
-                          MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE ),
-                      start, len,
-                      ssl->session_negotiate->peer_cert_digest );
-
-    ssl->session_negotiate->peer_cert_digest_type =
-        MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE;
-    ssl->session_negotiate->peer_cert_digest_len =
-        MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN;
-
-    return( ret );
-}
-
-static int ssl_remember_peer_pubkey( mbedtls_ssl_context *ssl,
-                                     unsigned char *start, size_t len )
-{
-    unsigned char *end = start + len;
-    int ret;
-
-    /* Make a copy of the peer's raw public key. */
-    mbedtls_pk_init( &ssl->handshake->peer_pubkey );
-    ret = mbedtls_pk_parse_subpubkey( &start, end,
-                                      &ssl->handshake->peer_pubkey );
-    if( ret != 0 )
-    {
-        /* We should have parsed the public key before. */
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    return( 0 );
-}
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl )
-{
-    int ret = 0;
-    int crt_expected;
-#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    const int authmode = ssl->handshake->sni_authmode != MBEDTLS_SSL_VERIFY_UNSET
-                       ? ssl->handshake->sni_authmode
-                       : ssl->conf->authmode;
-#else
-    const int authmode = ssl->conf->authmode;
-#endif
-    void *rs_ctx = NULL;
-    mbedtls_x509_crt *chain = NULL;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) );
-
-    crt_expected = ssl_parse_certificate_coordinate( ssl, authmode );
-    if( crt_expected == SSL_CERTIFICATE_SKIP )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) );
-        goto exit;
-    }
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    if( ssl->handshake->ecrs_enabled &&
-        ssl->handshake->ecrs_state == ssl_ecrs_crt_verify )
-    {
-        chain = ssl->handshake->ecrs_peer_cert;
-        ssl->handshake->ecrs_peer_cert = NULL;
-        goto crt_verify;
-    }
-#endif
-
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        /* mbedtls_ssl_read_record may have sent an alert already. We
-           let it decide whether to alert. */
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-        goto exit;
-    }
-
-#if defined(MBEDTLS_SSL_SRV_C)
-    if( ssl_srv_check_client_no_crt_notification( ssl ) == 0 )
-    {
-        ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_MISSING;
-
-        if( authmode == MBEDTLS_SSL_VERIFY_OPTIONAL )
-            ret = 0;
-        else
-            ret = MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE;
-
-        goto exit;
-    }
-#endif /* MBEDTLS_SSL_SRV_C */
-
-    /* Clear existing peer CRT structure in case we tried to
-     * reuse a session but it failed, and allocate a new one. */
-    ssl_clear_peer_cert( ssl->session_negotiate );
-
-    chain = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
-    if( chain == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed",
-                                    sizeof( mbedtls_x509_crt ) ) );
-        mbedtls_ssl_send_alert_message( ssl,
-                                        MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-
-        ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
-        goto exit;
-    }
-    mbedtls_x509_crt_init( chain );
-
-    ret = ssl_parse_certificate_chain( ssl, chain );
-    if( ret != 0 )
-        goto exit;
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    if( ssl->handshake->ecrs_enabled)
-        ssl->handshake->ecrs_state = ssl_ecrs_crt_verify;
-
-crt_verify:
-    if( ssl->handshake->ecrs_enabled)
-        rs_ctx = &ssl->handshake->ecrs_ctx;
-#endif
-
-    ret = ssl_parse_certificate_verify( ssl, authmode,
-                                        chain, rs_ctx );
-    if( ret != 0 )
-        goto exit;
-
-#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    {
-        unsigned char *crt_start, *pk_start;
-        size_t crt_len, pk_len;
-
-        /* We parse the CRT chain without copying, so
-         * these pointers point into the input buffer,
-         * and are hence still valid after freeing the
-         * CRT chain. */
-
-        crt_start = chain->raw.p;
-        crt_len   = chain->raw.len;
-
-        pk_start = chain->pk_raw.p;
-        pk_len   = chain->pk_raw.len;
-
-        /* Free the CRT structures before computing
-         * digest and copying the peer's public key. */
-        mbedtls_x509_crt_free( chain );
-        mbedtls_free( chain );
-        chain = NULL;
-
-        ret = ssl_remember_peer_crt_digest( ssl, crt_start, crt_len );
-        if( ret != 0 )
-            goto exit;
-
-        ret = ssl_remember_peer_pubkey( ssl, pk_start, pk_len );
-        if( ret != 0 )
-            goto exit;
-    }
-#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    /* Pass ownership to session structure. */
-    ssl->session_negotiate->peer_cert = chain;
-    chain = NULL;
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate" ) );
-
-exit:
-
-    if( ret == 0 )
-        ssl->state++;
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    if( ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-    {
-        ssl->handshake->ecrs_peer_cert = chain;
-        chain = NULL;
-    }
-#endif
-
-    if( chain != NULL )
-    {
-        mbedtls_x509_crt_free( chain );
-        mbedtls_free( chain );
-    }
-
-    return( ret );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-int mbedtls_ssl_write_change_cipher_spec( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write change cipher spec" ) );
-
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC;
-    ssl->out_msglen  = 1;
-    ssl->out_msg[0]  = 1;
-
-    ssl->state++;
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write change cipher spec" ) );
-
-    return( 0 );
-}
-
-int mbedtls_ssl_parse_change_cipher_spec( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse change cipher spec" ) );
-
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-        return( ret );
-    }
-
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad change cipher spec message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-    }
-
-    /* CCS records are only accepted if they have length 1 and content '1',
-     * so we don't need to check this here. */
-
-    /*
-     * Switch to our negotiated transform and session parameters for inbound
-     * data.
-     */
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for inbound data" ) );
-    ssl->transform_in = ssl->transform_negotiate;
-    ssl->session_in = ssl->session_negotiate;
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-        ssl_dtls_replay_reset( ssl );
-#endif
-
-        /* Increment epoch */
-        if( ++ssl->in_epoch == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) );
-            /* This is highly unlikely to happen for legitimate reasons, so
-               treat it as an attack and don't send an alert. */
-            return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
-        }
-    }
-    else
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-    memset( ssl->in_ctr, 0, 8 );
-
-    ssl_update_in_pointers( ssl, ssl->transform_negotiate );
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_activate != NULL )
-    {
-        if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_INBOUND ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-    }
-#endif
-
-    ssl->state++;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse change cipher spec" ) );
-
-    return( 0 );
-}
-
-void mbedtls_ssl_optimize_checksum( mbedtls_ssl_context *ssl,
-                            const mbedtls_ssl_ciphersuite_t *ciphersuite_info )
-{
-    ((void) ciphersuite_info);
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 )
-        ssl->handshake->update_checksum = ssl_update_checksum_md5sha1;
-    else
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA512_C)
-    if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
-        ssl->handshake->update_checksum = ssl_update_checksum_sha384;
-    else
-#endif
-#if defined(MBEDTLS_SHA256_C)
-    if( ciphersuite_info->mac != MBEDTLS_MD_SHA384 )
-        ssl->handshake->update_checksum = ssl_update_checksum_sha256;
-    else
-#endif
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return;
-    }
-}
-
-void mbedtls_ssl_reset_checksum( mbedtls_ssl_context *ssl )
-{
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-     mbedtls_md5_starts_ret( &ssl->handshake->fin_md5  );
-    mbedtls_sha1_starts_ret( &ssl->handshake->fin_sha1 );
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_abort( &ssl->handshake->fin_sha256_psa );
-    psa_hash_setup( &ssl->handshake->fin_sha256_psa, PSA_ALG_SHA_256 );
-#else
-    mbedtls_sha256_starts_ret( &ssl->handshake->fin_sha256, 0 );
-#endif
-#endif
-#if defined(MBEDTLS_SHA512_C)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_abort( &ssl->handshake->fin_sha384_psa );
-    psa_hash_setup( &ssl->handshake->fin_sha384_psa, PSA_ALG_SHA_384 );
-#else
-    mbedtls_sha512_starts_ret( &ssl->handshake->fin_sha512, 1 );
-#endif
-#endif
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-}
-
-static void ssl_update_checksum_start( mbedtls_ssl_context *ssl,
-                                       const unsigned char *buf, size_t len )
-{
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-     mbedtls_md5_update_ret( &ssl->handshake->fin_md5 , buf, len );
-    mbedtls_sha1_update_ret( &ssl->handshake->fin_sha1, buf, len );
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_update( &ssl->handshake->fin_sha256_psa, buf, len );
-#else
-    mbedtls_sha256_update_ret( &ssl->handshake->fin_sha256, buf, len );
-#endif
-#endif
-#if defined(MBEDTLS_SHA512_C)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_update( &ssl->handshake->fin_sha384_psa, buf, len );
-#else
-    mbedtls_sha512_update_ret( &ssl->handshake->fin_sha512, buf, len );
-#endif
-#endif
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-}
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *ssl,
-                                         const unsigned char *buf, size_t len )
-{
-     mbedtls_md5_update_ret( &ssl->handshake->fin_md5 , buf, len );
-    mbedtls_sha1_update_ret( &ssl->handshake->fin_sha1, buf, len );
-}
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA256_C)
-static void ssl_update_checksum_sha256( mbedtls_ssl_context *ssl,
-                                        const unsigned char *buf, size_t len )
-{
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_update( &ssl->handshake->fin_sha256_psa, buf, len );
-#else
-    mbedtls_sha256_update_ret( &ssl->handshake->fin_sha256, buf, len );
-#endif
-}
-#endif
-
-#if defined(MBEDTLS_SHA512_C)
-static void ssl_update_checksum_sha384( mbedtls_ssl_context *ssl,
-                                        const unsigned char *buf, size_t len )
-{
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_update( &ssl->handshake->fin_sha384_psa, buf, len );
-#else
-    mbedtls_sha512_update_ret( &ssl->handshake->fin_sha512, buf, len );
-#endif
-}
-#endif
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-static void ssl_calc_finished_ssl(
-                mbedtls_ssl_context *ssl, unsigned char *buf, int from )
-{
-    const char *sender;
-    mbedtls_md5_context  md5;
-    mbedtls_sha1_context sha1;
-
-    unsigned char padbuf[48];
-    unsigned char md5sum[16];
-    unsigned char sha1sum[20];
-
-    mbedtls_ssl_session *session = ssl->session_negotiate;
-    if( !session )
-        session = ssl->session;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc  finished ssl" ) );
-
-    mbedtls_md5_init( &md5 );
-    mbedtls_sha1_init( &sha1 );
-
-    mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
-    mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
-
-    /*
-     * SSLv3:
-     *   hash =
-     *      MD5( master + pad2 +
-     *          MD5( handshake + sender + master + pad1 ) )
-     *   + SHA1( master + pad2 +
-     *         SHA1( handshake + sender + master + pad1 ) )
-     */
-
-#if !defined(MBEDTLS_MD5_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished  md5 state", (unsigned char *)
-                    md5.state, sizeof(  md5.state ) );
-#endif
-
-#if !defined(MBEDTLS_SHA1_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *)
-                   sha1.state, sizeof( sha1.state ) );
-#endif
-
-    sender = ( from == MBEDTLS_SSL_IS_CLIENT ) ? "CLNT"
-                                       : "SRVR";
-
-    memset( padbuf, 0x36, 48 );
-
-    mbedtls_md5_update_ret( &md5, (const unsigned char *) sender, 4 );
-    mbedtls_md5_update_ret( &md5, session->master, 48 );
-    mbedtls_md5_update_ret( &md5, padbuf, 48 );
-    mbedtls_md5_finish_ret( &md5, md5sum );
-
-    mbedtls_sha1_update_ret( &sha1, (const unsigned char *) sender, 4 );
-    mbedtls_sha1_update_ret( &sha1, session->master, 48 );
-    mbedtls_sha1_update_ret( &sha1, padbuf, 40 );
-    mbedtls_sha1_finish_ret( &sha1, sha1sum );
-
-    memset( padbuf, 0x5C, 48 );
-
-    mbedtls_md5_starts_ret( &md5 );
-    mbedtls_md5_update_ret( &md5, session->master, 48 );
-    mbedtls_md5_update_ret( &md5, padbuf, 48 );
-    mbedtls_md5_update_ret( &md5, md5sum, 16 );
-    mbedtls_md5_finish_ret( &md5, buf );
-
-    mbedtls_sha1_starts_ret( &sha1 );
-    mbedtls_sha1_update_ret( &sha1, session->master, 48 );
-    mbedtls_sha1_update_ret( &sha1, padbuf , 40 );
-    mbedtls_sha1_update_ret( &sha1, sha1sum, 20 );
-    mbedtls_sha1_finish_ret( &sha1, buf + 16 );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, 36 );
-
-    mbedtls_md5_free(  &md5  );
-    mbedtls_sha1_free( &sha1 );
-
-    mbedtls_platform_zeroize(  padbuf, sizeof(  padbuf ) );
-    mbedtls_platform_zeroize(  md5sum, sizeof(  md5sum ) );
-    mbedtls_platform_zeroize( sha1sum, sizeof( sha1sum ) );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc  finished" ) );
-}
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
-static void ssl_calc_finished_tls(
-                mbedtls_ssl_context *ssl, unsigned char *buf, int from )
-{
-    int len = 12;
-    const char *sender;
-    mbedtls_md5_context  md5;
-    mbedtls_sha1_context sha1;
-    unsigned char padbuf[36];
-
-    mbedtls_ssl_session *session = ssl->session_negotiate;
-    if( !session )
-        session = ssl->session;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc  finished tls" ) );
-
-    mbedtls_md5_init( &md5 );
-    mbedtls_sha1_init( &sha1 );
-
-    mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
-    mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
-
-    /*
-     * TLSv1:
-     *   hash = PRF( master, finished_label,
-     *               MD5( handshake ) + SHA1( handshake ) )[0..11]
-     */
-
-#if !defined(MBEDTLS_MD5_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished  md5 state", (unsigned char *)
-                    md5.state, sizeof(  md5.state ) );
-#endif
-
-#if !defined(MBEDTLS_SHA1_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *)
-                   sha1.state, sizeof( sha1.state ) );
-#endif
-
-    sender = ( from == MBEDTLS_SSL_IS_CLIENT )
-             ? "client finished"
-             : "server finished";
-
-    mbedtls_md5_finish_ret(  &md5, padbuf );
-    mbedtls_sha1_finish_ret( &sha1, padbuf + 16 );
-
-    ssl->handshake->tls_prf( session->master, 48, sender,
-                             padbuf, 36, buf, len );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len );
-
-    mbedtls_md5_free(  &md5  );
-    mbedtls_sha1_free( &sha1 );
-
-    mbedtls_platform_zeroize(  padbuf, sizeof(  padbuf ) );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc  finished" ) );
-}
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA256_C)
-static void ssl_calc_finished_tls_sha256(
-                mbedtls_ssl_context *ssl, unsigned char *buf, int from )
-{
-    int len = 12;
-    const char *sender;
-    unsigned char padbuf[32];
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    size_t hash_size;
-    psa_hash_operation_t sha256_psa = PSA_HASH_OPERATION_INIT;
-    psa_status_t status;
-#else
-    mbedtls_sha256_context sha256;
-#endif
-
-    mbedtls_ssl_session *session = ssl->session_negotiate;
-    if( !session )
-        session = ssl->session;
-
-    sender = ( from == MBEDTLS_SSL_IS_CLIENT )
-             ? "client finished"
-             : "server finished";
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    sha256_psa = psa_hash_operation_init();
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc PSA finished tls sha256" ) );
-
-    status = psa_hash_clone( &ssl->handshake->fin_sha256_psa, &sha256_psa );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) );
-        return;
-    }
-
-    status = psa_hash_finish( &sha256_psa, padbuf, sizeof( padbuf ), &hash_size );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) );
-        return;
-    }
-    MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated padbuf", padbuf, 32 );
-#else
-
-    mbedtls_sha256_init( &sha256 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc  finished tls sha256" ) );
-
-    mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 );
-
-    /*
-     * TLSv1.2:
-     *   hash = PRF( master, finished_label,
-     *               Hash( handshake ) )[0.11]
-     */
-
-#if !defined(MBEDTLS_SHA256_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha2 state", (unsigned char *)
-                   sha256.state, sizeof( sha256.state ) );
-#endif
-
-    mbedtls_sha256_finish_ret( &sha256, padbuf );
-    mbedtls_sha256_free( &sha256 );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-    ssl->handshake->tls_prf( session->master, 48, sender,
-                             padbuf, 32, buf, len );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len );
-
-    mbedtls_platform_zeroize(  padbuf, sizeof(  padbuf ) );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc  finished" ) );
-}
-#endif /* MBEDTLS_SHA256_C */
-
-#if defined(MBEDTLS_SHA512_C)
-static void ssl_calc_finished_tls_sha384(
-                mbedtls_ssl_context *ssl, unsigned char *buf, int from )
-{
-    int len = 12;
-    const char *sender;
-    unsigned char padbuf[48];
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    size_t hash_size;
-    psa_hash_operation_t sha384_psa = PSA_HASH_OPERATION_INIT;
-    psa_status_t status;
-#else
-    mbedtls_sha512_context sha512;
-#endif
-
-    mbedtls_ssl_session *session = ssl->session_negotiate;
-    if( !session )
-        session = ssl->session;
-
-    sender = ( from == MBEDTLS_SSL_IS_CLIENT )
-                ? "client finished"
-                : "server finished";
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    sha384_psa = psa_hash_operation_init();
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc PSA finished tls sha384" ) );
-
-    status = psa_hash_clone( &ssl->handshake->fin_sha384_psa, &sha384_psa );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) );
-        return;
-    }
-
-    status = psa_hash_finish( &sha384_psa, padbuf, sizeof( padbuf ), &hash_size );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) );
-        return;
-    }
-    MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated padbuf", padbuf, 48 );
-#else
-    mbedtls_sha512_init( &sha512 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc  finished tls sha384" ) );
-
-    mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 );
-
-    /*
-     * TLSv1.2:
-     *   hash = PRF( master, finished_label,
-     *               Hash( handshake ) )[0.11]
-     */
-
-#if !defined(MBEDTLS_SHA512_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha512 state", (unsigned char *)
-                   sha512.state, sizeof( sha512.state ) );
-#endif
-
-    mbedtls_sha512_finish_ret( &sha512, padbuf );
-    mbedtls_sha512_free( &sha512 );
-#endif
-
-    ssl->handshake->tls_prf( session->master, 48, sender,
-                             padbuf, 48, buf, len );
-
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len );
-
-    mbedtls_platform_zeroize(  padbuf, sizeof( padbuf ) );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc  finished" ) );
-}
-#endif /* MBEDTLS_SHA512_C */
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-static void ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl )
-{
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup: final free" ) );
-
-    /*
-     * Free our handshake params
-     */
-    mbedtls_ssl_handshake_free( ssl );
-    mbedtls_free( ssl->handshake );
-    ssl->handshake = NULL;
-
-    /*
-     * Free the previous transform and swith in the current one
-     */
-    if( ssl->transform )
-    {
-        mbedtls_ssl_transform_free( ssl->transform );
-        mbedtls_free( ssl->transform );
-    }
-    ssl->transform = ssl->transform_negotiate;
-    ssl->transform_negotiate = NULL;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup: final free" ) );
-}
-
-void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl )
-{
-    int resume = ssl->handshake->resume;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup" ) );
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-    {
-        ssl->renego_status =  MBEDTLS_SSL_RENEGOTIATION_DONE;
-        ssl->renego_records_seen = 0;
-    }
-#endif
-
-    /*
-     * Free the previous session and switch in the current one
-     */
-    if( ssl->session )
-    {
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-        /* RFC 7366 3.1: keep the EtM state */
-        ssl->session_negotiate->encrypt_then_mac =
-                  ssl->session->encrypt_then_mac;
-#endif
-
-        mbedtls_ssl_session_free( ssl->session );
-        mbedtls_free( ssl->session );
-    }
-    ssl->session = ssl->session_negotiate;
-    ssl->session_negotiate = NULL;
-
-    /*
-     * Add cache entry
-     */
-    if( ssl->conf->f_set_cache != NULL &&
-        ssl->session->id_len != 0 &&
-        resume == 0 )
-    {
-        if( ssl->conf->f_set_cache( ssl->conf->p_cache, ssl->session ) != 0 )
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "cache did not store session" ) );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake->flight != NULL )
-    {
-        /* Cancel handshake timer */
-        ssl_set_timer( ssl, 0 );
-
-        /* Keep last flight around in case we need to resend it:
-         * we need the handshake and transform structures for that */
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip freeing handshake and transform" ) );
-    }
-    else
-#endif
-        ssl_handshake_wrapup_free_hs_transform( ssl );
-
-    ssl->state++;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup" ) );
-}
-
-int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl )
-{
-    int ret, hash_len;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write finished" ) );
-
-    ssl_update_out_pointers( ssl, ssl->transform_negotiate );
-
-    ssl->handshake->calc_finished( ssl, ssl->out_msg + 4, ssl->conf->endpoint );
-
-    /*
-     * RFC 5246 7.4.9 (Page 63) says 12 is the default length and ciphersuites
-     * may define some other value. Currently (early 2016), no defined
-     * ciphersuite does this (and this is unlikely to change as activity has
-     * moved to TLS 1.3 now) so we can keep the hardcoded 12 here.
-     */
-    hash_len = ( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) ? 36 : 12;
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    ssl->verify_data_len = hash_len;
-    memcpy( ssl->own_verify_data, ssl->out_msg + 4, hash_len );
-#endif
-
-    ssl->out_msglen  = 4 + hash_len;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_FINISHED;
-
-    /*
-     * In case of session resuming, invert the client and server
-     * ChangeCipherSpec messages order.
-     */
-    if( ssl->handshake->resume != 0 )
-    {
-#if defined(MBEDTLS_SSL_CLI_C)
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-            ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
-#endif
-#if defined(MBEDTLS_SSL_SRV_C)
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-            ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC;
-#endif
-    }
-    else
-        ssl->state++;
-
-    /*
-     * Switch to our negotiated transform and session parameters for outbound
-     * data.
-     */
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for outbound data" ) );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        unsigned char i;
-
-        /* Remember current epoch settings for resending */
-        ssl->handshake->alt_transform_out = ssl->transform_out;
-        memcpy( ssl->handshake->alt_out_ctr, ssl->cur_out_ctr, 8 );
-
-        /* Set sequence_number to zero */
-        memset( ssl->cur_out_ctr + 2, 0, 6 );
-
-        /* Increment epoch */
-        for( i = 2; i > 0; i-- )
-            if( ++ssl->cur_out_ctr[i - 1] != 0 )
-                break;
-
-        /* The loop goes to its end iff the counter is wrapping */
-        if( i == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) );
-            return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
-        }
-    }
-    else
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-    memset( ssl->cur_out_ctr, 0, 8 );
-
-    ssl->transform_out = ssl->transform_negotiate;
-    ssl->session_out = ssl->session_negotiate;
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_activate != NULL )
-    {
-        if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-    }
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        mbedtls_ssl_send_flight_completed( ssl );
-#endif
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
-        return( ret );
-    }
-#endif
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write finished" ) );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-#define SSL_MAX_HASH_LEN 36
-#else
-#define SSL_MAX_HASH_LEN 12
-#endif
-
-int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    unsigned int hash_len;
-    unsigned char buf[SSL_MAX_HASH_LEN];
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse finished" ) );
-
-    ssl->handshake->calc_finished( ssl, buf, ssl->conf->endpoint ^ 1 );
-
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-        return( ret );
-    }
-
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-    }
-
-    /* There is currently no ciphersuite using another length with TLS 1.2 */
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-        hash_len = 36;
-    else
-#endif
-        hash_len = 12;
-
-    if( ssl->in_msg[0] != MBEDTLS_SSL_HS_FINISHED ||
-        ssl->in_hslen  != mbedtls_ssl_hs_hdr_len( ssl ) + hash_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED );
-    }
-
-    if( mbedtls_ssl_safer_memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ),
-                      buf, hash_len ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED );
-    }
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    ssl->verify_data_len = hash_len;
-    memcpy( ssl->peer_verify_data, buf, hash_len );
-#endif
-
-    if( ssl->handshake->resume != 0 )
-    {
-#if defined(MBEDTLS_SSL_CLI_C)
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-            ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC;
-#endif
-#if defined(MBEDTLS_SSL_SRV_C)
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-            ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
-#endif
-    }
-    else
-        ssl->state++;
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        mbedtls_ssl_recv_flight_completed( ssl );
-#endif
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse finished" ) );
-
-    return( 0 );
-}
-
-static void ssl_handshake_params_init( mbedtls_ssl_handshake_params *handshake )
-{
-    memset( handshake, 0, sizeof( mbedtls_ssl_handshake_params ) );
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-     mbedtls_md5_init(   &handshake->fin_md5  );
-    mbedtls_sha1_init(   &handshake->fin_sha1 );
-     mbedtls_md5_starts_ret( &handshake->fin_md5  );
-    mbedtls_sha1_starts_ret( &handshake->fin_sha1 );
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    handshake->fin_sha256_psa = psa_hash_operation_init();
-    psa_hash_setup( &handshake->fin_sha256_psa, PSA_ALG_SHA_256 );
-#else
-    mbedtls_sha256_init(   &handshake->fin_sha256    );
-    mbedtls_sha256_starts_ret( &handshake->fin_sha256, 0 );
-#endif
-#endif
-#if defined(MBEDTLS_SHA512_C)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    handshake->fin_sha384_psa = psa_hash_operation_init();
-    psa_hash_setup( &handshake->fin_sha384_psa, PSA_ALG_SHA_384 );
-#else
-    mbedtls_sha512_init(   &handshake->fin_sha512    );
-    mbedtls_sha512_starts_ret( &handshake->fin_sha512, 1 );
-#endif
-#endif
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-    handshake->update_checksum = ssl_update_checksum_start;
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-    mbedtls_ssl_sig_hash_set_init( &handshake->hash_algs );
-#endif
-
-#if defined(MBEDTLS_DHM_C)
-    mbedtls_dhm_init( &handshake->dhm_ctx );
-#endif
-#if defined(MBEDTLS_ECDH_C)
-    mbedtls_ecdh_init( &handshake->ecdh_ctx );
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    mbedtls_ecjpake_init( &handshake->ecjpake_ctx );
-#if defined(MBEDTLS_SSL_CLI_C)
-    handshake->ecjpake_cache = NULL;
-    handshake->ecjpake_cache_len = 0;
-#endif
-#endif
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    mbedtls_x509_crt_restart_init( &handshake->ecrs_ctx );
-#endif
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    handshake->sni_authmode = MBEDTLS_SSL_VERIFY_UNSET;
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && \
-    !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    mbedtls_pk_init( &handshake->peer_pubkey );
-#endif
-}
-
-static void ssl_transform_init( mbedtls_ssl_transform *transform )
-{
-    memset( transform, 0, sizeof(mbedtls_ssl_transform) );
-
-    mbedtls_cipher_init( &transform->cipher_ctx_enc );
-    mbedtls_cipher_init( &transform->cipher_ctx_dec );
-
-    mbedtls_md_init( &transform->md_ctx_enc );
-    mbedtls_md_init( &transform->md_ctx_dec );
-}
-
-void mbedtls_ssl_session_init( mbedtls_ssl_session *session )
-{
-    memset( session, 0, sizeof(mbedtls_ssl_session) );
-}
-
-static int ssl_handshake_init( mbedtls_ssl_context *ssl )
-{
-    /* Clear old handshake information if present */
-    if( ssl->transform_negotiate )
-        mbedtls_ssl_transform_free( ssl->transform_negotiate );
-    if( ssl->session_negotiate )
-        mbedtls_ssl_session_free( ssl->session_negotiate );
-    if( ssl->handshake )
-        mbedtls_ssl_handshake_free( ssl );
-
-    /*
-     * Either the pointers are now NULL or cleared properly and can be freed.
-     * Now allocate missing structures.
-     */
-    if( ssl->transform_negotiate == NULL )
-    {
-        ssl->transform_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_transform) );
-    }
-
-    if( ssl->session_negotiate == NULL )
-    {
-        ssl->session_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_session) );
-    }
-
-    if( ssl->handshake == NULL )
-    {
-        ssl->handshake = mbedtls_calloc( 1, sizeof(mbedtls_ssl_handshake_params) );
-    }
-
-    /* All pointers should exist and can be directly freed without issue */
-    if( ssl->handshake == NULL ||
-        ssl->transform_negotiate == NULL ||
-        ssl->session_negotiate == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc() of ssl sub-contexts failed" ) );
-
-        mbedtls_free( ssl->handshake );
-        mbedtls_free( ssl->transform_negotiate );
-        mbedtls_free( ssl->session_negotiate );
-
-        ssl->handshake = NULL;
-        ssl->transform_negotiate = NULL;
-        ssl->session_negotiate = NULL;
-
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    }
-
-    /* Initialize structures */
-    mbedtls_ssl_session_init( ssl->session_negotiate );
-    ssl_transform_init( ssl->transform_negotiate );
-    ssl_handshake_params_init( ssl->handshake );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        ssl->handshake->alt_transform_out = ssl->transform_out;
-
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-            ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING;
-        else
-            ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING;
-
-        ssl_set_timer( ssl, 0 );
-    }
-#endif
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
-/* Dummy cookie callbacks for defaults */
-static int ssl_cookie_write_dummy( void *ctx,
-                      unsigned char **p, unsigned char *end,
-                      const unsigned char *cli_id, size_t cli_id_len )
-{
-    ((void) ctx);
-    ((void) p);
-    ((void) end);
-    ((void) cli_id);
-    ((void) cli_id_len);
-
-    return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-}
-
-static int ssl_cookie_check_dummy( void *ctx,
-                      const unsigned char *cookie, size_t cookie_len,
-                      const unsigned char *cli_id, size_t cli_id_len )
-{
-    ((void) ctx);
-    ((void) cookie);
-    ((void) cookie_len);
-    ((void) cli_id);
-    ((void) cli_id_len);
-
-    return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-}
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */
-
-/* Once ssl->out_hdr as the address of the beginning of the
- * next outgoing record is set, deduce the other pointers.
- *
- * Note: For TLS, we save the implicit record sequence number
- *       (entering MAC computation) in the 8 bytes before ssl->out_hdr,
- *       and the caller has to make sure there's space for this.
- */
-
-static void ssl_update_out_pointers( mbedtls_ssl_context *ssl,
-                                     mbedtls_ssl_transform *transform )
-{
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        ssl->out_ctr = ssl->out_hdr +  3;
-        ssl->out_len = ssl->out_hdr + 11;
-        ssl->out_iv  = ssl->out_hdr + 13;
-    }
-    else
-#endif
-    {
-        ssl->out_ctr = ssl->out_hdr - 8;
-        ssl->out_len = ssl->out_hdr + 3;
-        ssl->out_iv  = ssl->out_hdr + 5;
-    }
-
-    /* Adjust out_msg to make space for explicit IV, if used. */
-    if( transform != NULL &&
-        ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
-    {
-        ssl->out_msg = ssl->out_iv + transform->ivlen - transform->fixed_ivlen;
-    }
-    else
-        ssl->out_msg = ssl->out_iv;
-}
-
-/* Once ssl->in_hdr as the address of the beginning of the
- * next incoming record is set, deduce the other pointers.
- *
- * Note: For TLS, we save the implicit record sequence number
- *       (entering MAC computation) in the 8 bytes before ssl->in_hdr,
- *       and the caller has to make sure there's space for this.
- */
-
-static void ssl_update_in_pointers( mbedtls_ssl_context *ssl,
-                                    mbedtls_ssl_transform *transform )
-{
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        ssl->in_ctr = ssl->in_hdr +  3;
-        ssl->in_len = ssl->in_hdr + 11;
-        ssl->in_iv  = ssl->in_hdr + 13;
-    }
-    else
-#endif
-    {
-        ssl->in_ctr = ssl->in_hdr - 8;
-        ssl->in_len = ssl->in_hdr + 3;
-        ssl->in_iv  = ssl->in_hdr + 5;
-    }
-
-    /* Offset in_msg from in_iv to allow space for explicit IV, if used. */
-    if( transform != NULL &&
-        ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
-    {
-        ssl->in_msg = ssl->in_iv + transform->ivlen - transform->fixed_ivlen;
-    }
-    else
-        ssl->in_msg = ssl->in_iv;
-}
-
-/*
- * Initialize an SSL context
- */
-void mbedtls_ssl_init( mbedtls_ssl_context *ssl )
-{
-    memset( ssl, 0, sizeof( mbedtls_ssl_context ) );
-}
-
-/*
- * Setup an SSL context
- */
-
-static void ssl_reset_in_out_pointers( mbedtls_ssl_context *ssl )
-{
-    /* Set the incoming and outgoing record pointers. */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        ssl->out_hdr = ssl->out_buf;
-        ssl->in_hdr  = ssl->in_buf;
-    }
-    else
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-    {
-        ssl->out_hdr = ssl->out_buf + 8;
-        ssl->in_hdr  = ssl->in_buf  + 8;
-    }
-
-    /* Derive other internal pointers. */
-    ssl_update_out_pointers( ssl, NULL /* no transform enabled */ );
-    ssl_update_in_pointers ( ssl, NULL /* no transform enabled */ );
-}
-
-int mbedtls_ssl_setup( mbedtls_ssl_context *ssl,
-                       const mbedtls_ssl_config *conf )
-{
-    int ret;
-
-    ssl->conf = conf;
-
-    /*
-     * Prepare base structures
-     */
-
-    /* Set to NULL in case of an error condition */
-    ssl->out_buf = NULL;
-
-    ssl->in_buf = mbedtls_calloc( 1, MBEDTLS_SSL_IN_BUFFER_LEN );
-    if( ssl->in_buf == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", MBEDTLS_SSL_IN_BUFFER_LEN) );
-        ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
-        goto error;
-    }
-
-    ssl->out_buf = mbedtls_calloc( 1, MBEDTLS_SSL_OUT_BUFFER_LEN );
-    if( ssl->out_buf == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", MBEDTLS_SSL_OUT_BUFFER_LEN) );
-        ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
-        goto error;
-    }
-
-    ssl_reset_in_out_pointers( ssl );
-
-    if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
-        goto error;
-
-    return( 0 );
-
-error:
-    mbedtls_free( ssl->in_buf );
-    mbedtls_free( ssl->out_buf );
-
-    ssl->conf = NULL;
-
-    ssl->in_buf = NULL;
-    ssl->out_buf = NULL;
-
-    ssl->in_hdr = NULL;
-    ssl->in_ctr = NULL;
-    ssl->in_len = NULL;
-    ssl->in_iv = NULL;
-    ssl->in_msg = NULL;
-
-    ssl->out_hdr = NULL;
-    ssl->out_ctr = NULL;
-    ssl->out_len = NULL;
-    ssl->out_iv = NULL;
-    ssl->out_msg = NULL;
-
-    return( ret );
-}
-
-/*
- * Reset an initialized and used SSL context for re-use while retaining
- * all application-set variables, function pointers and data.
- *
- * If partial is non-zero, keep data in the input buffer and client ID.
- * (Use when a DTLS client reconnects from the same port.)
- */
-static int ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial )
-{
-    int ret;
-
-#if !defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) ||     \
-    !defined(MBEDTLS_SSL_SRV_C)
-    ((void) partial);
-#endif
-
-    ssl->state = MBEDTLS_SSL_HELLO_REQUEST;
-
-    /* Cancel any possibly running timer */
-    ssl_set_timer( ssl, 0 );
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    ssl->renego_status = MBEDTLS_SSL_INITIAL_HANDSHAKE;
-    ssl->renego_records_seen = 0;
-
-    ssl->verify_data_len = 0;
-    memset( ssl->own_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN );
-    memset( ssl->peer_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN );
-#endif
-    ssl->secure_renegotiation = MBEDTLS_SSL_LEGACY_RENEGOTIATION;
-
-    ssl->in_offt = NULL;
-    ssl_reset_in_out_pointers( ssl );
-
-    ssl->in_msgtype = 0;
-    ssl->in_msglen = 0;
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    ssl->next_record_offset = 0;
-    ssl->in_epoch = 0;
-#endif
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    ssl_dtls_replay_reset( ssl );
-#endif
-
-    ssl->in_hslen = 0;
-    ssl->nb_zero = 0;
-
-    ssl->keep_current_message = 0;
-
-    ssl->out_msgtype = 0;
-    ssl->out_msglen = 0;
-    ssl->out_left = 0;
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-    if( ssl->split_done != MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED )
-        ssl->split_done = 0;
-#endif
-
-    memset( ssl->cur_out_ctr, 0, sizeof( ssl->cur_out_ctr ) );
-
-    ssl->transform_in = NULL;
-    ssl->transform_out = NULL;
-
-    ssl->session_in = NULL;
-    ssl->session_out = NULL;
-
-    memset( ssl->out_buf, 0, MBEDTLS_SSL_OUT_BUFFER_LEN );
-
-#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
-    if( partial == 0 )
-#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
-    {
-        ssl->in_left = 0;
-        memset( ssl->in_buf, 0, MBEDTLS_SSL_IN_BUFFER_LEN );
-    }
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_reset != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_reset()" ) );
-        if( ( ret = mbedtls_ssl_hw_record_reset( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_reset", ret );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-        }
-    }
-#endif
-
-    if( ssl->transform )
-    {
-        mbedtls_ssl_transform_free( ssl->transform );
-        mbedtls_free( ssl->transform );
-        ssl->transform = NULL;
-    }
-
-    if( ssl->session )
-    {
-        mbedtls_ssl_session_free( ssl->session );
-        mbedtls_free( ssl->session );
-        ssl->session = NULL;
-    }
-
-#if defined(MBEDTLS_SSL_ALPN)
-    ssl->alpn_chosen = NULL;
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
-#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE)
-    if( partial == 0 )
-#endif
-    {
-        mbedtls_free( ssl->cli_id );
-        ssl->cli_id = NULL;
-        ssl->cli_id_len = 0;
-    }
-#endif
-
-    if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
-        return( ret );
-
-    return( 0 );
-}
-
-/*
- * Reset an initialized and used SSL context for re-use while retaining
- * all application-set variables, function pointers and data.
- */
-int mbedtls_ssl_session_reset( mbedtls_ssl_context *ssl )
-{
-    return( ssl_session_reset_int( ssl, 0 ) );
-}
-
-/*
- * SSL set accessors
- */
-void mbedtls_ssl_conf_endpoint( mbedtls_ssl_config *conf, int endpoint )
-{
-    conf->endpoint   = endpoint;
-}
-
-void mbedtls_ssl_conf_transport( mbedtls_ssl_config *conf, int transport )
-{
-    conf->transport = transport;
-}
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-void mbedtls_ssl_conf_dtls_anti_replay( mbedtls_ssl_config *conf, char mode )
-{
-    conf->anti_replay = mode;
-}
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *conf, unsigned limit )
-{
-    conf->badmac_limit = limit;
-}
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-
-void mbedtls_ssl_set_datagram_packing( mbedtls_ssl_context *ssl,
-                                       unsigned allow_packing )
-{
-    ssl->disable_datagram_packing = !allow_packing;
-}
-
-void mbedtls_ssl_conf_handshake_timeout( mbedtls_ssl_config *conf,
-                                         uint32_t min, uint32_t max )
-{
-    conf->hs_timeout_min = min;
-    conf->hs_timeout_max = max;
-}
-#endif
-
-void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *conf, int authmode )
-{
-    conf->authmode   = authmode;
-}
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-void mbedtls_ssl_conf_verify( mbedtls_ssl_config *conf,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy )
-{
-    conf->f_vrfy      = f_vrfy;
-    conf->p_vrfy      = p_vrfy;
-}
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-void mbedtls_ssl_conf_rng( mbedtls_ssl_config *conf,
-                  int (*f_rng)(void *, unsigned char *, size_t),
-                  void *p_rng )
-{
-    conf->f_rng      = f_rng;
-    conf->p_rng      = p_rng;
-}
-
-void mbedtls_ssl_conf_dbg( mbedtls_ssl_config *conf,
-                  void (*f_dbg)(void *, int, const char *, int, const char *),
-                  void  *p_dbg )
-{
-    conf->f_dbg      = f_dbg;
-    conf->p_dbg      = p_dbg;
-}
-
-void mbedtls_ssl_set_bio( mbedtls_ssl_context *ssl,
-        void *p_bio,
-        mbedtls_ssl_send_t *f_send,
-        mbedtls_ssl_recv_t *f_recv,
-        mbedtls_ssl_recv_timeout_t *f_recv_timeout )
-{
-    ssl->p_bio          = p_bio;
-    ssl->f_send         = f_send;
-    ssl->f_recv         = f_recv;
-    ssl->f_recv_timeout = f_recv_timeout;
-}
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-void mbedtls_ssl_set_mtu( mbedtls_ssl_context *ssl, uint16_t mtu )
-{
-    ssl->mtu = mtu;
-}
-#endif
-
-void mbedtls_ssl_conf_read_timeout( mbedtls_ssl_config *conf, uint32_t timeout )
-{
-    conf->read_timeout   = timeout;
-}
-
-void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *ssl,
-                               void *p_timer,
-                               mbedtls_ssl_set_timer_t *f_set_timer,
-                               mbedtls_ssl_get_timer_t *f_get_timer )
-{
-    ssl->p_timer        = p_timer;
-    ssl->f_set_timer    = f_set_timer;
-    ssl->f_get_timer    = f_get_timer;
-
-    /* Make sure we start with no timer running */
-    ssl_set_timer( ssl, 0 );
-}
-
-#if defined(MBEDTLS_SSL_SRV_C)
-void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *conf,
-        void *p_cache,
-        int (*f_get_cache)(void *, mbedtls_ssl_session *),
-        int (*f_set_cache)(void *, const mbedtls_ssl_session *) )
-{
-    conf->p_cache = p_cache;
-    conf->f_get_cache = f_get_cache;
-    conf->f_set_cache = f_set_cache;
-}
-#endif /* MBEDTLS_SSL_SRV_C */
-
-#if defined(MBEDTLS_SSL_CLI_C)
-int mbedtls_ssl_set_session( mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session )
-{
-    int ret;
-
-    if( ssl == NULL ||
-        session == NULL ||
-        ssl->session_negotiate == NULL ||
-        ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    if( ( ret = mbedtls_ssl_session_copy( ssl->session_negotiate,
-                                          session ) ) != 0 )
-        return( ret );
-
-    ssl->handshake->resume = 1;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_CLI_C */
-
-void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf,
-                                   const int *ciphersuites )
-{
-    conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = ciphersuites;
-    conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = ciphersuites;
-    conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = ciphersuites;
-    conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = ciphersuites;
-}
-
-void mbedtls_ssl_conf_ciphersuites_for_version( mbedtls_ssl_config *conf,
-                                       const int *ciphersuites,
-                                       int major, int minor )
-{
-    if( major != MBEDTLS_SSL_MAJOR_VERSION_3 )
-        return;
-
-    if( minor < MBEDTLS_SSL_MINOR_VERSION_0 || minor > MBEDTLS_SSL_MINOR_VERSION_3 )
-        return;
-
-    conf->ciphersuite_list[minor] = ciphersuites;
-}
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf,
-                                    const mbedtls_x509_crt_profile *profile )
-{
-    conf->cert_profile = profile;
-}
-
-/* Append a new keycert entry to a (possibly empty) list */
-static int ssl_append_key_cert( mbedtls_ssl_key_cert **head,
-                                mbedtls_x509_crt *cert,
-                                mbedtls_pk_context *key )
-{
-    mbedtls_ssl_key_cert *new_cert;
-
-    new_cert = mbedtls_calloc( 1, sizeof( mbedtls_ssl_key_cert ) );
-    if( new_cert == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-
-    new_cert->cert = cert;
-    new_cert->key  = key;
-    new_cert->next = NULL;
-
-    /* Update head is the list was null, else add to the end */
-    if( *head == NULL )
-    {
-        *head = new_cert;
-    }
-    else
-    {
-        mbedtls_ssl_key_cert *cur = *head;
-        while( cur->next != NULL )
-            cur = cur->next;
-        cur->next = new_cert;
-    }
-
-    return( 0 );
-}
-
-int mbedtls_ssl_conf_own_cert( mbedtls_ssl_config *conf,
-                              mbedtls_x509_crt *own_cert,
-                              mbedtls_pk_context *pk_key )
-{
-    return( ssl_append_key_cert( &conf->key_cert, own_cert, pk_key ) );
-}
-
-void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *conf,
-                               mbedtls_x509_crt *ca_chain,
-                               mbedtls_x509_crl *ca_crl )
-{
-    conf->ca_chain   = ca_chain;
-    conf->ca_crl     = ca_crl;
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    /* mbedtls_ssl_conf_ca_chain() and mbedtls_ssl_conf_ca_cb()
-     * cannot be used together. */
-    conf->f_ca_cb = NULL;
-    conf->p_ca_cb = NULL;
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-}
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-void mbedtls_ssl_conf_ca_cb( mbedtls_ssl_config *conf,
-                             mbedtls_x509_crt_ca_cb_t f_ca_cb,
-                             void *p_ca_cb )
-{
-    conf->f_ca_cb = f_ca_cb;
-    conf->p_ca_cb = p_ca_cb;
-
-    /* mbedtls_ssl_conf_ca_chain() and mbedtls_ssl_conf_ca_cb()
-     * cannot be used together. */
-    conf->ca_chain   = NULL;
-    conf->ca_crl     = NULL;
-}
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-int mbedtls_ssl_set_hs_own_cert( mbedtls_ssl_context *ssl,
-                                 mbedtls_x509_crt *own_cert,
-                                 mbedtls_pk_context *pk_key )
-{
-    return( ssl_append_key_cert( &ssl->handshake->sni_key_cert,
-                                 own_cert, pk_key ) );
-}
-
-void mbedtls_ssl_set_hs_ca_chain( mbedtls_ssl_context *ssl,
-                                  mbedtls_x509_crt *ca_chain,
-                                  mbedtls_x509_crl *ca_crl )
-{
-    ssl->handshake->sni_ca_chain   = ca_chain;
-    ssl->handshake->sni_ca_crl     = ca_crl;
-}
-
-void mbedtls_ssl_set_hs_authmode( mbedtls_ssl_context *ssl,
-                                  int authmode )
-{
-    ssl->handshake->sni_authmode = authmode;
-}
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-void mbedtls_ssl_set_verify( mbedtls_ssl_context *ssl,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy )
-{
-    ssl->f_vrfy = f_vrfy;
-    ssl->p_vrfy = p_vrfy;
-}
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-/*
- * Set EC J-PAKE password for current handshake
- */
-int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *ssl,
-                                         const unsigned char *pw,
-                                         size_t pw_len )
-{
-    mbedtls_ecjpake_role role;
-
-    if( ssl->handshake == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-        role = MBEDTLS_ECJPAKE_SERVER;
-    else
-        role = MBEDTLS_ECJPAKE_CLIENT;
-
-    return( mbedtls_ecjpake_setup( &ssl->handshake->ecjpake_ctx,
-                                   role,
-                                   MBEDTLS_MD_SHA256,
-                                   MBEDTLS_ECP_DP_SECP256R1,
-                                   pw, pw_len ) );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-
-static void ssl_conf_remove_psk( mbedtls_ssl_config *conf )
-{
-    /* Remove reference to existing PSK, if any. */
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( conf->psk_opaque != 0 )
-    {
-        /* The maintenance of the PSK key slot is the
-         * user's responsibility. */
-        conf->psk_opaque = 0;
-    }
-    /* This and the following branch should never
-     * be taken simultaenously as we maintain the
-     * invariant that raw and opaque PSKs are never
-     * configured simultaneously. As a safeguard,
-     * though, `else` is omitted here. */
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( conf->psk != NULL )
-    {
-        mbedtls_platform_zeroize( conf->psk, conf->psk_len );
-
-        mbedtls_free( conf->psk );
-        conf->psk = NULL;
-        conf->psk_len = 0;
-    }
-
-    /* Remove reference to PSK identity, if any. */
-    if( conf->psk_identity != NULL )
-    {
-        mbedtls_free( conf->psk_identity );
-        conf->psk_identity = NULL;
-        conf->psk_identity_len = 0;
-    }
-}
-
-/* This function assumes that PSK identity in the SSL config is unset.
- * It checks that the provided identity is well-formed and attempts
- * to make a copy of it in the SSL config.
- * On failure, the PSK identity in the config remains unset. */
-static int ssl_conf_set_psk_identity( mbedtls_ssl_config *conf,
-                                      unsigned char const *psk_identity,
-                                      size_t psk_identity_len )
-{
-    /* Identity len will be encoded on two bytes */
-    if( psk_identity               == NULL ||
-        ( psk_identity_len >> 16 ) != 0    ||
-        psk_identity_len > MBEDTLS_SSL_OUT_CONTENT_LEN )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    conf->psk_identity = mbedtls_calloc( 1, psk_identity_len );
-    if( conf->psk_identity == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-
-    conf->psk_identity_len = psk_identity_len;
-    memcpy( conf->psk_identity, psk_identity, conf->psk_identity_len );
-
-    return( 0 );
-}
-
-int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf,
-                const unsigned char *psk, size_t psk_len,
-                const unsigned char *psk_identity, size_t psk_identity_len )
-{
-    int ret;
-    /* Remove opaque/raw PSK + PSK Identity */
-    ssl_conf_remove_psk( conf );
-
-    /* Check and set raw PSK */
-    if( psk == NULL || psk_len > MBEDTLS_PSK_MAX_LEN )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    if( ( conf->psk = mbedtls_calloc( 1, psk_len ) ) == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    conf->psk_len = psk_len;
-    memcpy( conf->psk, psk, conf->psk_len );
-
-    /* Check and set PSK Identity */
-    ret = ssl_conf_set_psk_identity( conf, psk_identity, psk_identity_len );
-    if( ret != 0 )
-        ssl_conf_remove_psk( conf );
-
-    return( ret );
-}
-
-static void ssl_remove_psk( mbedtls_ssl_context *ssl )
-{
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( ssl->handshake->psk_opaque != 0 )
-    {
-        ssl->handshake->psk_opaque = 0;
-    }
-    else
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ssl->handshake->psk != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->handshake->psk,
-                                  ssl->handshake->psk_len );
-        mbedtls_free( ssl->handshake->psk );
-        ssl->handshake->psk_len = 0;
-    }
-}
-
-int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *ssl,
-                            const unsigned char *psk, size_t psk_len )
-{
-    if( psk == NULL || ssl->handshake == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    if( psk_len > MBEDTLS_PSK_MAX_LEN )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    ssl_remove_psk( ssl );
-
-    if( ( ssl->handshake->psk = mbedtls_calloc( 1, psk_len ) ) == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-
-    ssl->handshake->psk_len = psk_len;
-    memcpy( ssl->handshake->psk, psk, ssl->handshake->psk_len );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-int mbedtls_ssl_conf_psk_opaque( mbedtls_ssl_config *conf,
-                                 psa_key_handle_t psk_slot,
-                                 const unsigned char *psk_identity,
-                                 size_t psk_identity_len )
-{
-    int ret;
-    /* Clear opaque/raw PSK + PSK Identity, if present. */
-    ssl_conf_remove_psk( conf );
-
-    /* Check and set opaque PSK */
-    if( psk_slot == 0 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    conf->psk_opaque = psk_slot;
-
-    /* Check and set PSK Identity */
-    ret = ssl_conf_set_psk_identity( conf, psk_identity,
-                                     psk_identity_len );
-    if( ret != 0 )
-        ssl_conf_remove_psk( conf );
-
-    return( ret );
-}
-
-int mbedtls_ssl_set_hs_psk_opaque( mbedtls_ssl_context *ssl,
-                                   psa_key_handle_t psk_slot )
-{
-    if( psk_slot == 0 || ssl->handshake == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    ssl_remove_psk( ssl );
-    ssl->handshake->psk_opaque = psk_slot;
-    return( 0 );
-}
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *conf,
-                     int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *,
-                     size_t),
-                     void *p_psk )
-{
-    conf->f_psk = f_psk;
-    conf->p_psk = p_psk;
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C)
-
-#if !defined(MBEDTLS_DEPRECATED_REMOVED)
-int mbedtls_ssl_conf_dh_param( mbedtls_ssl_config *conf, const char *dhm_P, const char *dhm_G )
-{
-    int ret;
-
-    if( ( ret = mbedtls_mpi_read_string( &conf->dhm_P, 16, dhm_P ) ) != 0 ||
-        ( ret = mbedtls_mpi_read_string( &conf->dhm_G, 16, dhm_G ) ) != 0 )
-    {
-        mbedtls_mpi_free( &conf->dhm_P );
-        mbedtls_mpi_free( &conf->dhm_G );
-        return( ret );
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_DEPRECATED_REMOVED */
-
-int mbedtls_ssl_conf_dh_param_bin( mbedtls_ssl_config *conf,
-                                   const unsigned char *dhm_P, size_t P_len,
-                                   const unsigned char *dhm_G, size_t G_len )
-{
-    int ret;
-
-    if( ( ret = mbedtls_mpi_read_binary( &conf->dhm_P, dhm_P, P_len ) ) != 0 ||
-        ( ret = mbedtls_mpi_read_binary( &conf->dhm_G, dhm_G, G_len ) ) != 0 )
-    {
-        mbedtls_mpi_free( &conf->dhm_P );
-        mbedtls_mpi_free( &conf->dhm_G );
-        return( ret );
-    }
-
-    return( 0 );
-}
-
-int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx )
-{
-    int ret;
-
-    if( ( ret = mbedtls_mpi_copy( &conf->dhm_P, &dhm_ctx->P ) ) != 0 ||
-        ( ret = mbedtls_mpi_copy( &conf->dhm_G, &dhm_ctx->G ) ) != 0 )
-    {
-        mbedtls_mpi_free( &conf->dhm_P );
-        mbedtls_mpi_free( &conf->dhm_G );
-        return( ret );
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_SRV_C */
-
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C)
-/*
- * Set the minimum length for Diffie-Hellman parameters
- */
-void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *conf,
-                                      unsigned int bitlen )
-{
-    conf->dhm_min_bitlen = bitlen;
-}
-#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_CLI_C */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-/*
- * Set allowed/preferred hashes for handshake signatures
- */
-void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf,
-                                  const int *hashes )
-{
-    conf->sig_hashes = hashes;
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-#if defined(MBEDTLS_ECP_C)
-/*
- * Set the allowed elliptic curves
- */
-void mbedtls_ssl_conf_curves( mbedtls_ssl_config *conf,
-                             const mbedtls_ecp_group_id *curve_list )
-{
-    conf->curve_list = curve_list;
-}
-#endif /* MBEDTLS_ECP_C */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname )
-{
-    /* Initialize to suppress unnecessary compiler warning */
-    size_t hostname_len = 0;
-
-    /* Check if new hostname is valid before
-     * making any change to current one */
-    if( hostname != NULL )
-    {
-        hostname_len = strlen( hostname );
-
-        if( hostname_len > MBEDTLS_SSL_MAX_HOST_NAME_LEN )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    /* Now it's clear that we will overwrite the old hostname,
-     * so we can free it safely */
-
-    if( ssl->hostname != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) );
-        mbedtls_free( ssl->hostname );
-    }
-
-    /* Passing NULL as hostname shall clear the old one */
-
-    if( hostname == NULL )
-    {
-        ssl->hostname = NULL;
-    }
-    else
-    {
-        ssl->hostname = mbedtls_calloc( 1, hostname_len + 1 );
-        if( ssl->hostname == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-
-        memcpy( ssl->hostname, hostname, hostname_len );
-
-        ssl->hostname[hostname_len] = '\0';
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf,
-                  int (*f_sni)(void *, mbedtls_ssl_context *,
-                                const unsigned char *, size_t),
-                  void *p_sni )
-{
-    conf->f_sni = f_sni;
-    conf->p_sni = p_sni;
-}
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-
-#if defined(MBEDTLS_SSL_ALPN)
-int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *conf, const char **protos )
-{
-    size_t cur_len, tot_len;
-    const char **p;
-
-    /*
-     * RFC 7301 3.1: "Empty strings MUST NOT be included and byte strings
-     * MUST NOT be truncated."
-     * We check lengths now rather than later.
-     */
-    tot_len = 0;
-    for( p = protos; *p != NULL; p++ )
-    {
-        cur_len = strlen( *p );
-        tot_len += cur_len;
-
-        if( cur_len == 0 || cur_len > 255 || tot_len > 65535 )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    conf->alpn_list = protos;
-
-    return( 0 );
-}
-
-const char *mbedtls_ssl_get_alpn_protocol( const mbedtls_ssl_context *ssl )
-{
-    return( ssl->alpn_chosen );
-}
-#endif /* MBEDTLS_SSL_ALPN */
-
-void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *conf, int major, int minor )
-{
-    conf->max_major_ver = major;
-    conf->max_minor_ver = minor;
-}
-
-void mbedtls_ssl_conf_min_version( mbedtls_ssl_config *conf, int major, int minor )
-{
-    conf->min_major_ver = major;
-    conf->min_minor_ver = minor;
-}
-
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C)
-void mbedtls_ssl_conf_fallback( mbedtls_ssl_config *conf, char fallback )
-{
-    conf->fallback = fallback;
-}
-#endif
-
-#if defined(MBEDTLS_SSL_SRV_C)
-void mbedtls_ssl_conf_cert_req_ca_list( mbedtls_ssl_config *conf,
-                                          char cert_req_ca_list )
-{
-    conf->cert_req_ca_list = cert_req_ca_list;
-}
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm )
-{
-    conf->encrypt_then_mac = etm;
-}
-#endif
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems )
-{
-    conf->extended_ms = ems;
-}
-#endif
-
-#if defined(MBEDTLS_ARC4_C)
-void mbedtls_ssl_conf_arc4_support( mbedtls_ssl_config *conf, char arc4 )
-{
-    conf->arc4_disabled = arc4;
-}
-#endif
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-int mbedtls_ssl_conf_max_frag_len( mbedtls_ssl_config *conf, unsigned char mfl_code )
-{
-    if( mfl_code >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID ||
-        ssl_mfl_code_to_length( mfl_code ) > MBEDTLS_TLS_EXT_ADV_CONTENT_LEN )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    conf->mfl_code = mfl_code;
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-void mbedtls_ssl_conf_truncated_hmac( mbedtls_ssl_config *conf, int truncate )
-{
-    conf->trunc_hmac = truncate;
-}
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-void mbedtls_ssl_conf_cbc_record_splitting( mbedtls_ssl_config *conf, char split )
-{
-    conf->cbc_record_splitting = split;
-}
-#endif
-
-void mbedtls_ssl_conf_legacy_renegotiation( mbedtls_ssl_config *conf, int allow_legacy )
-{
-    conf->allow_legacy_renegotiation = allow_legacy;
-}
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-void mbedtls_ssl_conf_renegotiation( mbedtls_ssl_config *conf, int renegotiation )
-{
-    conf->disable_renegotiation = renegotiation;
-}
-
-void mbedtls_ssl_conf_renegotiation_enforced( mbedtls_ssl_config *conf, int max_records )
-{
-    conf->renego_max_records = max_records;
-}
-
-void mbedtls_ssl_conf_renegotiation_period( mbedtls_ssl_config *conf,
-                                   const unsigned char period[8] )
-{
-    memcpy( conf->renego_period, period, 8 );
-}
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-#if defined(MBEDTLS_SSL_CLI_C)
-void mbedtls_ssl_conf_session_tickets( mbedtls_ssl_config *conf, int use_tickets )
-{
-    conf->session_tickets = use_tickets;
-}
-#endif
-
-#if defined(MBEDTLS_SSL_SRV_C)
-void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *conf,
-        mbedtls_ssl_ticket_write_t *f_ticket_write,
-        mbedtls_ssl_ticket_parse_t *f_ticket_parse,
-        void *p_ticket )
-{
-    conf->f_ticket_write = f_ticket_write;
-    conf->f_ticket_parse = f_ticket_parse;
-    conf->p_ticket       = p_ticket;
-}
-#endif
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-#if defined(MBEDTLS_SSL_EXPORT_KEYS)
-void mbedtls_ssl_conf_export_keys_cb( mbedtls_ssl_config *conf,
-        mbedtls_ssl_export_keys_t *f_export_keys,
-        void *p_export_keys )
-{
-    conf->f_export_keys = f_export_keys;
-    conf->p_export_keys = p_export_keys;
-}
-#endif
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-void mbedtls_ssl_conf_async_private_cb(
-    mbedtls_ssl_config *conf,
-    mbedtls_ssl_async_sign_t *f_async_sign,
-    mbedtls_ssl_async_decrypt_t *f_async_decrypt,
-    mbedtls_ssl_async_resume_t *f_async_resume,
-    mbedtls_ssl_async_cancel_t *f_async_cancel,
-    void *async_config_data )
-{
-    conf->f_async_sign_start = f_async_sign;
-    conf->f_async_decrypt_start = f_async_decrypt;
-    conf->f_async_resume = f_async_resume;
-    conf->f_async_cancel = f_async_cancel;
-    conf->p_async_config_data = async_config_data;
-}
-
-void *mbedtls_ssl_conf_get_async_config_data( const mbedtls_ssl_config *conf )
-{
-    return( conf->p_async_config_data );
-}
-
-void *mbedtls_ssl_get_async_operation_data( const mbedtls_ssl_context *ssl )
-{
-    if( ssl->handshake == NULL )
-        return( NULL );
-    else
-        return( ssl->handshake->user_async_ctx );
-}
-
-void mbedtls_ssl_set_async_operation_data( mbedtls_ssl_context *ssl,
-                                 void *ctx )
-{
-    if( ssl->handshake != NULL )
-        ssl->handshake->user_async_ctx = ctx;
-}
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-/*
- * SSL get accessors
- */
-size_t mbedtls_ssl_get_bytes_avail( const mbedtls_ssl_context *ssl )
-{
-    return( ssl->in_offt == NULL ? 0 : ssl->in_msglen );
-}
-
-int mbedtls_ssl_check_pending( const mbedtls_ssl_context *ssl )
-{
-    /*
-     * Case A: We're currently holding back
-     * a message for further processing.
-     */
-
-    if( ssl->keep_current_message == 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: record held back for processing" ) );
-        return( 1 );
-    }
-
-    /*
-     * Case B: Further records are pending in the current datagram.
-     */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->in_left > ssl->next_record_offset )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: more records within current datagram" ) );
-        return( 1 );
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    /*
-     * Case C: A handshake message is being processed.
-     */
-
-    if( ssl->in_hslen > 0 && ssl->in_hslen < ssl->in_msglen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: more handshake messages within current record" ) );
-        return( 1 );
-    }
-
-    /*
-     * Case D: An application data message is being processed
-     */
-    if( ssl->in_offt != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: application data record is being processed" ) );
-        return( 1 );
-    }
-
-    /*
-     * In all other cases, the rest of the message can be dropped.
-     * As in ssl_get_next_record, this needs to be adapted if
-     * we implement support for multiple alerts in single records.
-     */
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: nothing pending" ) );
-    return( 0 );
-}
-
-uint32_t mbedtls_ssl_get_verify_result( const mbedtls_ssl_context *ssl )
-{
-    if( ssl->session != NULL )
-        return( ssl->session->verify_result );
-
-    if( ssl->session_negotiate != NULL )
-        return( ssl->session_negotiate->verify_result );
-
-    return( 0xFFFFFFFF );
-}
-
-const char *mbedtls_ssl_get_ciphersuite( const mbedtls_ssl_context *ssl )
-{
-    if( ssl == NULL || ssl->session == NULL )
-        return( NULL );
-
-    return mbedtls_ssl_get_ciphersuite_name( ssl->session->ciphersuite );
-}
-
-const char *mbedtls_ssl_get_version( const mbedtls_ssl_context *ssl )
-{
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        switch( ssl->minor_ver )
-        {
-            case MBEDTLS_SSL_MINOR_VERSION_2:
-                return( "DTLSv1.0" );
-
-            case MBEDTLS_SSL_MINOR_VERSION_3:
-                return( "DTLSv1.2" );
-
-            default:
-                return( "unknown (DTLS)" );
-        }
-    }
-#endif
-
-    switch( ssl->minor_ver )
-    {
-        case MBEDTLS_SSL_MINOR_VERSION_0:
-            return( "SSLv3.0" );
-
-        case MBEDTLS_SSL_MINOR_VERSION_1:
-            return( "TLSv1.0" );
-
-        case MBEDTLS_SSL_MINOR_VERSION_2:
-            return( "TLSv1.1" );
-
-        case MBEDTLS_SSL_MINOR_VERSION_3:
-            return( "TLSv1.2" );
-
-        default:
-            return( "unknown" );
-    }
-}
-
-int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl )
-{
-    size_t transform_expansion = 0;
-    const mbedtls_ssl_transform *transform = ssl->transform_out;
-    unsigned block_size;
-
-    if( transform == NULL )
-        return( (int) mbedtls_ssl_hdr_len( ssl ) );
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    if( ssl->session_out->compression != MBEDTLS_SSL_COMPRESS_NULL )
-        return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-#endif
-
-    switch( mbedtls_cipher_get_cipher_mode( &transform->cipher_ctx_enc ) )
-    {
-        case MBEDTLS_MODE_GCM:
-        case MBEDTLS_MODE_CCM:
-        case MBEDTLS_MODE_CHACHAPOLY:
-        case MBEDTLS_MODE_STREAM:
-            transform_expansion = transform->minlen;
-            break;
-
-        case MBEDTLS_MODE_CBC:
-
-            block_size = mbedtls_cipher_get_block_size(
-                &transform->cipher_ctx_enc );
-
-            /* Expansion due to the addition of the MAC. */
-            transform_expansion += transform->maclen;
-
-            /* Expansion due to the addition of CBC padding;
-             * Theoretically up to 256 bytes, but we never use
-             * more than the block size of the underlying cipher. */
-            transform_expansion += block_size;
-
-            /* For TLS 1.1 or higher, an explicit IV is added
-             * after the record header. */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
-            if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
-                transform_expansion += block_size;
-#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */
-
-            break;
-
-        default:
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-    }
-
-    return( (int)( mbedtls_ssl_hdr_len( ssl ) + transform_expansion ) );
-}
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-size_t mbedtls_ssl_get_max_frag_len( const mbedtls_ssl_context *ssl )
-{
-    size_t max_len;
-
-    /*
-     * Assume mfl_code is correct since it was checked when set
-     */
-    max_len = ssl_mfl_code_to_length( ssl->conf->mfl_code );
-
-    /* Check if a smaller max length was negotiated */
-    if( ssl->session_out != NULL &&
-        ssl_mfl_code_to_length( ssl->session_out->mfl_code ) < max_len )
-    {
-        max_len = ssl_mfl_code_to_length( ssl->session_out->mfl_code );
-    }
-
-    /* During a handshake, use the value being negotiated */
-    if( ssl->session_negotiate != NULL &&
-        ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code ) < max_len )
-    {
-        max_len = ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code );
-    }
-
-    return( max_len );
-}
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-static size_t ssl_get_current_mtu( const mbedtls_ssl_context *ssl )
-{
-    /* Return unlimited mtu for client hello messages to avoid fragmentation. */
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
-        ( ssl->state == MBEDTLS_SSL_CLIENT_HELLO ||
-          ssl->state == MBEDTLS_SSL_SERVER_HELLO ) )
-        return ( 0 );
-
-    if( ssl->handshake == NULL || ssl->handshake->mtu == 0 )
-        return( ssl->mtu );
-
-    if( ssl->mtu == 0 )
-        return( ssl->handshake->mtu );
-
-    return( ssl->mtu < ssl->handshake->mtu ?
-            ssl->mtu : ssl->handshake->mtu );
-}
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-int mbedtls_ssl_get_max_out_record_payload( const mbedtls_ssl_context *ssl )
-{
-    size_t max_len = MBEDTLS_SSL_OUT_CONTENT_LEN;
-
-#if !defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) && \
-    !defined(MBEDTLS_SSL_PROTO_DTLS)
-    (void) ssl;
-#endif
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    const size_t mfl = mbedtls_ssl_get_max_frag_len( ssl );
-
-    if( max_len > mfl )
-        max_len = mfl;
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl_get_current_mtu( ssl ) != 0 )
-    {
-        const size_t mtu = ssl_get_current_mtu( ssl );
-        const int ret = mbedtls_ssl_get_record_expansion( ssl );
-        const size_t overhead = (size_t) ret;
-
-        if( ret < 0 )
-            return( ret );
-
-        if( mtu <= overhead )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "MTU too low for record expansion" ) );
-            return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
-        }
-
-        if( max_len > mtu - overhead )
-            max_len = mtu - overhead;
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-#if !defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) &&        \
-    !defined(MBEDTLS_SSL_PROTO_DTLS)
-    ((void) ssl);
-#endif
-
-    return( (int) max_len );
-}
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert( const mbedtls_ssl_context *ssl )
-{
-    if( ssl == NULL || ssl->session == NULL )
-        return( NULL );
-
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    return( ssl->session->peer_cert );
-#else
-    return( NULL );
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-}
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_CLI_C)
-int mbedtls_ssl_get_session( const mbedtls_ssl_context *ssl,
-                             mbedtls_ssl_session *dst )
-{
-    if( ssl == NULL ||
-        dst == NULL ||
-        ssl->session == NULL ||
-        ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    return( mbedtls_ssl_session_copy( dst, ssl->session ) );
-}
-#endif /* MBEDTLS_SSL_CLI_C */
-
-/*
- * Perform a single step of the SSL handshake
- */
-int mbedtls_ssl_handshake_step( mbedtls_ssl_context *ssl )
-{
-    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-#if defined(MBEDTLS_SSL_CLI_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-        ret = mbedtls_ssl_handshake_client_step( ssl );
-#endif
-#if defined(MBEDTLS_SSL_SRV_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-        ret = mbedtls_ssl_handshake_server_step( ssl );
-#endif
-
-    return( ret );
-}
-
-/*
- * Perform the SSL handshake
- */
-int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl )
-{
-    int ret = 0;
-
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> handshake" ) );
-
-    while( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-    {
-        ret = mbedtls_ssl_handshake_step( ssl );
-
-        if( ret != 0 )
-            break;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= handshake" ) );
-
-    return( ret );
-}
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-#if defined(MBEDTLS_SSL_SRV_C)
-/*
- * Write HelloRequest to request renegotiation on server
- */
-static int ssl_write_hello_request( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello request" ) );
-
-    ssl->out_msglen  = 4;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
-    ssl->out_msg[0]  = MBEDTLS_SSL_HS_HELLO_REQUEST;
-
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello request" ) );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_SRV_C */
-
-/*
- * Actually renegotiate current connection, triggered by either:
- * - any side: calling mbedtls_ssl_renegotiate(),
- * - client: receiving a HelloRequest during mbedtls_ssl_read(),
- * - server: receiving any handshake message on server during mbedtls_ssl_read() after
- *   the initial handshake is completed.
- * If the handshake doesn't complete due to waiting for I/O, it will continue
- * during the next calls to mbedtls_ssl_renegotiate() or mbedtls_ssl_read() respectively.
- */
-static int ssl_start_renegotiation( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> renegotiate" ) );
-
-    if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
-        return( ret );
-
-    /* RFC 6347 4.2.2: "[...] the HelloRequest will have message_seq = 0 and
-     * the ServerHello will have message_seq = 1" */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
-    {
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-            ssl->handshake->out_msg_seq = 1;
-        else
-            ssl->handshake->in_msg_seq = 1;
-    }
-#endif
-
-    ssl->state = MBEDTLS_SSL_HELLO_REQUEST;
-    ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS;
-
-    if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
-        return( ret );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= renegotiate" ) );
-
-    return( 0 );
-}
-
-/*
- * Renegotiate current connection on client,
- * or request renegotiation on server
- */
-int mbedtls_ssl_renegotiate( mbedtls_ssl_context *ssl )
-{
-    int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-#if defined(MBEDTLS_SSL_SRV_C)
-    /* On server, just send the request */
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
-        if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-        ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING;
-
-        /* Did we already try/start sending HelloRequest? */
-        if( ssl->out_left != 0 )
-            return( mbedtls_ssl_flush_output( ssl ) );
-
-        return( ssl_write_hello_request( ssl ) );
-    }
-#endif /* MBEDTLS_SSL_SRV_C */
-
-#if defined(MBEDTLS_SSL_CLI_C)
-    /*
-     * On client, either start the renegotiation process or,
-     * if already in progress, continue the handshake
-     */
-    if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-    {
-        if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-        if( ( ret = ssl_start_renegotiation( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_start_renegotiation", ret );
-            return( ret );
-        }
-    }
-    else
-    {
-        if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
-            return( ret );
-        }
-    }
-#endif /* MBEDTLS_SSL_CLI_C */
-
-    return( ret );
-}
-
-/*
- * Check record counters and renegotiate if they're above the limit.
- */
-static int ssl_check_ctr_renegotiate( mbedtls_ssl_context *ssl )
-{
-    size_t ep_len = ssl_ep_len( ssl );
-    int in_ctr_cmp;
-    int out_ctr_cmp;
-
-    if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ||
-        ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ||
-        ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED )
-    {
-        return( 0 );
-    }
-
-    in_ctr_cmp = memcmp( ssl->in_ctr + ep_len,
-                        ssl->conf->renego_period + ep_len, 8 - ep_len );
-    out_ctr_cmp = memcmp( ssl->cur_out_ctr + ep_len,
-                          ssl->conf->renego_period + ep_len, 8 - ep_len );
-
-    if( in_ctr_cmp <= 0 && out_ctr_cmp <= 0 )
-    {
-        return( 0 );
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "record counter limit reached: renegotiate" ) );
-    return( mbedtls_ssl_renegotiate( ssl ) );
-}
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-/*
- * Receive application data decrypted from the SSL layer
- */
-int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len )
-{
-    int ret;
-    size_t n;
-
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> read" ) );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-            return( ret );
-
-        if( ssl->handshake != NULL &&
-            ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING )
-        {
-            if( ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-                return( ret );
-        }
-    }
-#endif
-
-    /*
-     * Check if renegotiation is necessary and/or handshake is
-     * in process. If yes, perform/continue, and fall through
-     * if an unexpected packet is received while the client
-     * is waiting for the ServerHello.
-     *
-     * (There is no equivalent to the last condition on
-     *  the server-side as it is not treated as within
-     *  a handshake while waiting for the ClientHello
-     *  after a renegotiation request.)
-     */
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    ret = ssl_check_ctr_renegotiate( ssl );
-    if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
-        ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "ssl_check_ctr_renegotiate", ret );
-        return( ret );
-    }
-#endif
-
-    if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-    {
-        ret = mbedtls_ssl_handshake( ssl );
-        if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
-            ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
-            return( ret );
-        }
-    }
-
-    /* Loop as long as no application data record is available */
-    while( ssl->in_offt == NULL )
-    {
-        /* Start timer if not already running */
-        if( ssl->f_get_timer != NULL &&
-            ssl->f_get_timer( ssl->p_timer ) == -1 )
-        {
-            ssl_set_timer( ssl, ssl->conf->read_timeout );
-        }
-
-        if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-        {
-            if( ret == MBEDTLS_ERR_SSL_CONN_EOF )
-                return( 0 );
-
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-            return( ret );
-        }
-
-        if( ssl->in_msglen  == 0 &&
-            ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA )
-        {
-            /*
-             * OpenSSL sends empty messages to randomize the IV
-             */
-            if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-            {
-                if( ret == MBEDTLS_ERR_SSL_CONN_EOF )
-                    return( 0 );
-
-                MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-                return( ret );
-            }
-        }
-
-        if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "received handshake message" ) );
-
-            /*
-             * - For client-side, expect SERVER_HELLO_REQUEST.
-             * - For server-side, expect CLIENT_HELLO.
-             * - Fail (TLS) or silently drop record (DTLS) in other cases.
-             */
-
-#if defined(MBEDTLS_SSL_CLI_C)
-            if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
-                ( ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_REQUEST ||
-                  ssl->in_hslen  != mbedtls_ssl_hs_hdr_len( ssl ) ) )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake received (not HelloRequest)" ) );
-
-                /* With DTLS, drop the packet (probably from last handshake) */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-                if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-                {
-                    continue;
-                }
-#endif
-                return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-            }
-#endif /* MBEDTLS_SSL_CLI_C */
-
-#if defined(MBEDTLS_SSL_SRV_C)
-            if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
-                ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake received (not ClientHello)" ) );
-
-                /* With DTLS, drop the packet (probably from last handshake) */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-                if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-                {
-                    continue;
-                }
-#endif
-                return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-            }
-#endif /* MBEDTLS_SSL_SRV_C */
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-            /* Determine whether renegotiation attempt should be accepted */
-            if( ! ( ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED ||
-                    ( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
-                      ssl->conf->allow_legacy_renegotiation ==
-                                                   MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION ) ) )
-            {
-                /*
-                 * Accept renegotiation request
-                 */
-
-                /* DTLS clients need to know renego is server-initiated */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-                if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-                    ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-                {
-                    ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING;
-                }
-#endif
-                ret = ssl_start_renegotiation( ssl );
-                if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
-                    ret != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_RET( 1, "ssl_start_renegotiation", ret );
-                    return( ret );
-                }
-            }
-            else
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-            {
-                /*
-                 * Refuse renegotiation
-                 */
-
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "refusing renegotiation, sending alert" ) );
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-                if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-                {
-                    /* SSLv3 does not have a "no_renegotiation" warning, so
-                       we send a fatal alert and abort the connection. */
-                    mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                    MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-                    return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-                }
-                else
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-                if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 )
-                {
-                    if( ( ret = mbedtls_ssl_send_alert_message( ssl,
-                                    MBEDTLS_SSL_ALERT_LEVEL_WARNING,
-                                    MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION ) ) != 0 )
-                    {
-                        return( ret );
-                    }
-                }
-                else
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 ||
-          MBEDTLS_SSL_PROTO_TLS1_2 */
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
-                }
-            }
-
-            /* At this point, we don't know whether the renegotiation has been
-             * completed or not. The cases to consider are the following:
-             * 1) The renegotiation is complete. In this case, no new record
-             *    has been read yet.
-             * 2) The renegotiation is incomplete because the client received
-             *    an application data record while awaiting the ServerHello.
-             * 3) The renegotiation is incomplete because the client received
-             *    a non-handshake, non-application data message while awaiting
-             *    the ServerHello.
-             * In each of these case, looping will be the proper action:
-             * - For 1), the next iteration will read a new record and check
-             *   if it's application data.
-             * - For 2), the loop condition isn't satisfied as application data
-             *   is present, hence continue is the same as break
-             * - For 3), the loop condition is satisfied and read_record
-             *   will re-deliver the message that was held back by the client
-             *   when expecting the ServerHello.
-             */
-            continue;
-        }
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-        else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
-        {
-            if( ssl->conf->renego_max_records >= 0 )
-            {
-                if( ++ssl->renego_records_seen > ssl->conf->renego_max_records )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation requested, "
-                                        "but not honored by client" ) );
-                    return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-                }
-            }
-        }
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-        /* Fatal and closure alerts handled by mbedtls_ssl_read_record() */
-        if( ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "ignoring non-fatal non-closure alert" ) );
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-        }
-
-        if( ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad application data message" ) );
-            return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
-        }
-
-        ssl->in_offt = ssl->in_msg;
-
-        /* We're going to return something now, cancel timer,
-         * except if handshake (renegotiation) is in progress */
-        if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER )
-            ssl_set_timer( ssl, 0 );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-        /* If we requested renego but received AppData, resend HelloRequest.
-         * Do it now, after setting in_offt, to avoid taking this branch
-         * again if ssl_write_hello_request() returns WANT_WRITE */
-#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
-            ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
-        {
-            if( ( ret = ssl_resend_hello_request( ssl ) ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "ssl_resend_hello_request", ret );
-                return( ret );
-            }
-        }
-#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-    }
-
-    n = ( len < ssl->in_msglen )
-        ? len : ssl->in_msglen;
-
-    memcpy( buf, ssl->in_offt, n );
-    ssl->in_msglen -= n;
-
-    if( ssl->in_msglen == 0 )
-    {
-        /* all bytes consumed */
-        ssl->in_offt = NULL;
-        ssl->keep_current_message = 0;
-    }
-    else
-    {
-        /* more data available */
-        ssl->in_offt += n;
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= read" ) );
-
-    return( (int) n );
-}
-
-/*
- * Send application data to be encrypted by the SSL layer, taking care of max
- * fragment length and buffer size.
- *
- * According to RFC 5246 Section 6.2.1:
- *
- *      Zero-length fragments of Application data MAY be sent as they are
- *      potentially useful as a traffic analysis countermeasure.
- *
- * Therefore, it is possible that the input message length is 0 and the
- * corresponding return code is 0 on success.
- */
-static int ssl_write_real( mbedtls_ssl_context *ssl,
-                           const unsigned char *buf, size_t len )
-{
-    int ret = mbedtls_ssl_get_max_out_record_payload( ssl );
-    const size_t max_len = (size_t) ret;
-
-    if( ret < 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_get_max_out_record_payload", ret );
-        return( ret );
-    }
-
-    if( len > max_len )
-    {
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "fragment larger than the (negotiated) "
-                                "maximum fragment length: %d > %d",
-                                len, max_len ) );
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-        }
-        else
-#endif
-            len = max_len;
-    }
-
-    if( ssl->out_left != 0 )
-    {
-        /*
-         * The user has previously tried to send the data and
-         * MBEDTLS_ERR_SSL_WANT_WRITE or the message was only partially
-         * written. In this case, we expect the high-level write function
-         * (e.g. mbedtls_ssl_write()) to be called with the same parameters
-         */
-        if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flush_output", ret );
-            return( ret );
-        }
-    }
-    else
-    {
-        /*
-         * The user is trying to send a message the first time, so we need to
-         * copy the data into the internal buffers and setup the data structure
-         * to keep track of partial writes
-         */
-        ssl->out_msglen  = len;
-        ssl->out_msgtype = MBEDTLS_SSL_MSG_APPLICATION_DATA;
-        memcpy( ssl->out_msg, buf, len );
-
-        if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret );
-            return( ret );
-        }
-    }
-
-    return( (int) len );
-}
-
-/*
- * Write application data, doing 1/n-1 splitting if necessary.
- *
- * With non-blocking I/O, ssl_write_real() may return WANT_WRITE,
- * then the caller will call us again with the same arguments, so
- * remember whether we already did the split or not.
- */
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-static int ssl_write_split( mbedtls_ssl_context *ssl,
-                            const unsigned char *buf, size_t len )
-{
-    int ret;
-
-    if( ssl->conf->cbc_record_splitting ==
-            MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED ||
-        len <= 1 ||
-        ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_1 ||
-        mbedtls_cipher_get_cipher_mode( &ssl->transform_out->cipher_ctx_enc )
-                                != MBEDTLS_MODE_CBC )
-    {
-        return( ssl_write_real( ssl, buf, len ) );
-    }
-
-    if( ssl->split_done == 0 )
-    {
-        if( ( ret = ssl_write_real( ssl, buf, 1 ) ) <= 0 )
-            return( ret );
-        ssl->split_done = 1;
-    }
-
-    if( ( ret = ssl_write_real( ssl, buf + 1, len - 1 ) ) <= 0 )
-        return( ret );
-    ssl->split_done = 0;
-
-    return( ret + 1 );
-}
-#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */
-
-/*
- * Write application data (public-facing wrapper)
- */
-int mbedtls_ssl_write( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len )
-{
-    int ret;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write" ) );
-
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ( ret = ssl_check_ctr_renegotiate( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "ssl_check_ctr_renegotiate", ret );
-        return( ret );
-    }
-#endif
-
-    if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-    {
-        if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
-            return( ret );
-        }
-    }
-
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-    ret = ssl_write_split( ssl, buf, len );
-#else
-    ret = ssl_write_real( ssl, buf, len );
-#endif
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write" ) );
-
-    return( ret );
-}
-
-/*
- * Notify the peer that the connection is being closed
- */
-int mbedtls_ssl_close_notify( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write close notify" ) );
-
-    if( ssl->out_left != 0 )
-        return( mbedtls_ssl_flush_output( ssl ) );
-
-    if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER )
-    {
-        if( ( ret = mbedtls_ssl_send_alert_message( ssl,
-                        MBEDTLS_SSL_ALERT_LEVEL_WARNING,
-                        MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_send_alert_message", ret );
-            return( ret );
-        }
-    }
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write close notify" ) );
-
-    return( 0 );
-}
-
-void mbedtls_ssl_transform_free( mbedtls_ssl_transform *transform )
-{
-    if( transform == NULL )
-        return;
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    deflateEnd( &transform->ctx_deflate );
-    inflateEnd( &transform->ctx_inflate );
-#endif
-
-    mbedtls_cipher_free( &transform->cipher_ctx_enc );
-    mbedtls_cipher_free( &transform->cipher_ctx_dec );
-
-    mbedtls_md_free( &transform->md_ctx_enc );
-    mbedtls_md_free( &transform->md_ctx_dec );
-
-    mbedtls_platform_zeroize( transform, sizeof( mbedtls_ssl_transform ) );
-}
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-static void ssl_key_cert_free( mbedtls_ssl_key_cert *key_cert )
-{
-    mbedtls_ssl_key_cert *cur = key_cert, *next;
-
-    while( cur != NULL )
-    {
-        next = cur->next;
-        mbedtls_free( cur );
-        cur = next;
-    }
-}
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-
-static void ssl_buffering_free( mbedtls_ssl_context *ssl )
-{
-    unsigned offset;
-    mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-
-    if( hs == NULL )
-        return;
-
-    ssl_free_buffered_record( ssl );
-
-    for( offset = 0; offset < MBEDTLS_SSL_MAX_BUFFERED_HS; offset++ )
-        ssl_buffering_free_slot( ssl, offset );
-}
-
-static void ssl_buffering_free_slot( mbedtls_ssl_context *ssl,
-                                     uint8_t slot )
-{
-    mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-    mbedtls_ssl_hs_buffer * const hs_buf = &hs->buffering.hs[slot];
-
-    if( slot >= MBEDTLS_SSL_MAX_BUFFERED_HS )
-        return;
-
-    if( hs_buf->is_valid == 1 )
-    {
-        hs->buffering.total_bytes_buffered -= hs_buf->data_len;
-        mbedtls_platform_zeroize( hs_buf->data, hs_buf->data_len );
-        mbedtls_free( hs_buf->data );
-        memset( hs_buf, 0, sizeof( mbedtls_ssl_hs_buffer ) );
-    }
-}
-
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl )
-{
-    mbedtls_ssl_handshake_params *handshake = ssl->handshake;
-
-    if( handshake == NULL )
-        return;
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    if( ssl->conf->f_async_cancel != NULL && handshake->async_in_progress != 0 )
-    {
-        ssl->conf->f_async_cancel( ssl );
-        handshake->async_in_progress = 0;
-    }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    mbedtls_md5_free(    &handshake->fin_md5  );
-    mbedtls_sha1_free(   &handshake->fin_sha1 );
-#endif
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_SHA256_C)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_abort( &handshake->fin_sha256_psa );
-#else
-    mbedtls_sha256_free(   &handshake->fin_sha256    );
-#endif
-#endif
-#if defined(MBEDTLS_SHA512_C)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_abort( &handshake->fin_sha384_psa );
-#else
-    mbedtls_sha512_free(   &handshake->fin_sha512    );
-#endif
-#endif
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-#if defined(MBEDTLS_DHM_C)
-    mbedtls_dhm_free( &handshake->dhm_ctx );
-#endif
-#if defined(MBEDTLS_ECDH_C)
-    mbedtls_ecdh_free( &handshake->ecdh_ctx );
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    mbedtls_ecjpake_free( &handshake->ecjpake_ctx );
-#if defined(MBEDTLS_SSL_CLI_C)
-    mbedtls_free( handshake->ecjpake_cache );
-    handshake->ecjpake_cache = NULL;
-    handshake->ecjpake_cache_len = 0;
-#endif
-#endif
-
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    /* explicit void pointer cast for buggy MS compiler */
-    mbedtls_free( (void *) handshake->curves );
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    if( handshake->psk != NULL )
-    {
-        mbedtls_platform_zeroize( handshake->psk, handshake->psk_len );
-        mbedtls_free( handshake->psk );
-    }
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && \
-    defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    /*
-     * Free only the linked list wrapper, not the keys themselves
-     * since the belong to the SNI callback
-     */
-    if( handshake->sni_key_cert != NULL )
-    {
-        mbedtls_ssl_key_cert *cur = handshake->sni_key_cert, *next;
-
-        while( cur != NULL )
-        {
-            next = cur->next;
-            mbedtls_free( cur );
-            cur = next;
-        }
-    }
-#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_SERVER_NAME_INDICATION */
-
-#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
-    mbedtls_x509_crt_restart_free( &handshake->ecrs_ctx );
-    if( handshake->ecrs_peer_cert != NULL )
-    {
-        mbedtls_x509_crt_free( handshake->ecrs_peer_cert );
-        mbedtls_free( handshake->ecrs_peer_cert );
-    }
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C) &&        \
-    !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    mbedtls_pk_free( &handshake->peer_pubkey );
-#endif /* MBEDTLS_X509_CRT_PARSE_C && !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    mbedtls_free( handshake->verify_cookie );
-    ssl_flight_free( handshake->flight );
-    ssl_buffering_free( ssl );
-#endif
-
-#if defined(MBEDTLS_ECDH_C) &&                  \
-    defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_destroy_key( handshake->ecdh_psa_privkey );
-#endif /* MBEDTLS_ECDH_C && MBEDTLS_USE_PSA_CRYPTO */
-
-    mbedtls_platform_zeroize( handshake,
-                              sizeof( mbedtls_ssl_handshake_params ) );
-}
-
-void mbedtls_ssl_session_free( mbedtls_ssl_session *session )
-{
-    if( session == NULL )
-        return;
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    ssl_clear_peer_cert( session );
-#endif
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
-    mbedtls_free( session->ticket );
-#endif
-
-    mbedtls_platform_zeroize( session, sizeof( mbedtls_ssl_session ) );
-}
-
-/*
- * Free an SSL context
- */
-void mbedtls_ssl_free( mbedtls_ssl_context *ssl )
-{
-    if( ssl == NULL )
-        return;
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> free" ) );
-
-    if( ssl->out_buf != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->out_buf, MBEDTLS_SSL_OUT_BUFFER_LEN );
-        mbedtls_free( ssl->out_buf );
-    }
-
-    if( ssl->in_buf != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->in_buf, MBEDTLS_SSL_IN_BUFFER_LEN );
-        mbedtls_free( ssl->in_buf );
-    }
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    if( ssl->compress_buf != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->compress_buf, MBEDTLS_SSL_COMPRESS_BUFFER_LEN );
-        mbedtls_free( ssl->compress_buf );
-    }
-#endif
-
-    if( ssl->transform )
-    {
-        mbedtls_ssl_transform_free( ssl->transform );
-        mbedtls_free( ssl->transform );
-    }
-
-    if( ssl->handshake )
-    {
-        mbedtls_ssl_handshake_free( ssl );
-        mbedtls_ssl_transform_free( ssl->transform_negotiate );
-        mbedtls_ssl_session_free( ssl->session_negotiate );
-
-        mbedtls_free( ssl->handshake );
-        mbedtls_free( ssl->transform_negotiate );
-        mbedtls_free( ssl->session_negotiate );
-    }
-
-    if( ssl->session )
-    {
-        mbedtls_ssl_session_free( ssl->session );
-        mbedtls_free( ssl->session );
-    }
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    if( ssl->hostname != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) );
-        mbedtls_free( ssl->hostname );
-    }
-#endif
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_finish != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_finish()" ) );
-        mbedtls_ssl_hw_record_finish( ssl );
-    }
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
-    mbedtls_free( ssl->cli_id );
-#endif
-
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= free" ) );
-
-    /* Actually clear after last debug message */
-    mbedtls_platform_zeroize( ssl, sizeof( mbedtls_ssl_context ) );
-}
-
-/*
- * Initialze mbedtls_ssl_config
- */
-void mbedtls_ssl_config_init( mbedtls_ssl_config *conf )
-{
-    memset( conf, 0, sizeof( mbedtls_ssl_config ) );
-}
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-static int ssl_preset_default_hashes[] = {
-#if defined(MBEDTLS_SHA512_C)
-    MBEDTLS_MD_SHA512,
-    MBEDTLS_MD_SHA384,
-#endif
-#if defined(MBEDTLS_SHA256_C)
-    MBEDTLS_MD_SHA256,
-    MBEDTLS_MD_SHA224,
-#endif
-#if defined(MBEDTLS_SHA1_C) && defined(MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE)
-    MBEDTLS_MD_SHA1,
-#endif
-    MBEDTLS_MD_NONE
-};
-#endif
-
-static int ssl_preset_suiteb_ciphersuites[] = {
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-    MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
-    0
-};
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-static int ssl_preset_suiteb_hashes[] = {
-    MBEDTLS_MD_SHA256,
-    MBEDTLS_MD_SHA384,
-    MBEDTLS_MD_NONE
-};
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-static mbedtls_ecp_group_id ssl_preset_suiteb_curves[] = {
-    MBEDTLS_ECP_DP_SECP256R1,
-    MBEDTLS_ECP_DP_SECP384R1,
-    MBEDTLS_ECP_DP_NONE
-};
-#endif
-
-/*
- * Load default in mbedtls_ssl_config
- */
-int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf,
-                                 int endpoint, int transport, int preset )
-{
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C)
-    int ret;
-#endif
-
-    /* Use the functions here so that they are covered in tests,
-     * but otherwise access member directly for efficiency */
-    mbedtls_ssl_conf_endpoint( conf, endpoint );
-    mbedtls_ssl_conf_transport( conf, transport );
-
-    /*
-     * Things that are common to all presets
-     */
-#if defined(MBEDTLS_SSL_CLI_C)
-    if( endpoint == MBEDTLS_SSL_IS_CLIENT )
-    {
-        conf->authmode = MBEDTLS_SSL_VERIFY_REQUIRED;
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-        conf->session_tickets = MBEDTLS_SSL_SESSION_TICKETS_ENABLED;
-#endif
-    }
-#endif
-
-#if defined(MBEDTLS_ARC4_C)
-    conf->arc4_disabled = MBEDTLS_SSL_ARC4_DISABLED;
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    conf->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED;
-#endif
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    conf->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
-#endif
-
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-    conf->cbc_record_splitting = MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED;
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
-    conf->f_cookie_write = ssl_cookie_write_dummy;
-    conf->f_cookie_check = ssl_cookie_check_dummy;
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    conf->anti_replay = MBEDTLS_SSL_ANTI_REPLAY_ENABLED;
-#endif
-
-#if defined(MBEDTLS_SSL_SRV_C)
-    conf->cert_req_ca_list = MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED;
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    conf->hs_timeout_min = MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MIN;
-    conf->hs_timeout_max = MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MAX;
-#endif
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    conf->renego_max_records = MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT;
-    memset( conf->renego_period,     0x00, 2 );
-    memset( conf->renego_period + 2, 0xFF, 6 );
-#endif
-
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C)
-            if( endpoint == MBEDTLS_SSL_IS_SERVER )
-            {
-                const unsigned char dhm_p[] =
-                    MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN;
-                const unsigned char dhm_g[] =
-                    MBEDTLS_DHM_RFC3526_MODP_2048_G_BIN;
-
-                if ( ( ret = mbedtls_ssl_conf_dh_param_bin( conf,
-                                               dhm_p, sizeof( dhm_p ),
-                                               dhm_g, sizeof( dhm_g ) ) ) != 0 )
-                {
-                    return( ret );
-                }
-            }
-#endif
-
-    /*
-     * Preset-specific defaults
-     */
-    switch( preset )
-    {
-        /*
-         * NSA Suite B
-         */
-        case MBEDTLS_SSL_PRESET_SUITEB:
-            conf->min_major_ver = MBEDTLS_SSL_MAJOR_VERSION_3;
-            conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_3; /* TLS 1.2 */
-            conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION;
-            conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION;
-
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] =
-                                   ssl_preset_suiteb_ciphersuites;
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-            conf->cert_profile = &mbedtls_x509_crt_profile_suiteb;
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-            conf->sig_hashes = ssl_preset_suiteb_hashes;
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-            conf->curve_list = ssl_preset_suiteb_curves;
-#endif
-            break;
-
-        /*
-         * Default
-         */
-        default:
-            conf->min_major_ver = ( MBEDTLS_SSL_MIN_MAJOR_VERSION >
-                                    MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION ) ?
-                                    MBEDTLS_SSL_MIN_MAJOR_VERSION :
-                                    MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION;
-            conf->min_minor_ver = ( MBEDTLS_SSL_MIN_MINOR_VERSION >
-                                    MBEDTLS_SSL_MIN_VALID_MINOR_VERSION ) ?
-                                    MBEDTLS_SSL_MIN_MINOR_VERSION :
-                                    MBEDTLS_SSL_MIN_VALID_MINOR_VERSION;
-            conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION;
-            conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION;
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-            if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-                conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_2;
-#endif
-
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] =
-                                   mbedtls_ssl_list_ciphersuites();
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-            conf->cert_profile = &mbedtls_x509_crt_profile_default;
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-            conf->sig_hashes = ssl_preset_default_hashes;
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-            conf->curve_list = mbedtls_ecp_grp_id_list();
-#endif
-
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C)
-            conf->dhm_min_bitlen = 1024;
-#endif
-    }
-
-    return( 0 );
-}
-
-/*
- * Free mbedtls_ssl_config
- */
-void mbedtls_ssl_config_free( mbedtls_ssl_config *conf )
-{
-#if defined(MBEDTLS_DHM_C)
-    mbedtls_mpi_free( &conf->dhm_P );
-    mbedtls_mpi_free( &conf->dhm_G );
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    if( conf->psk != NULL )
-    {
-        mbedtls_platform_zeroize( conf->psk, conf->psk_len );
-        mbedtls_free( conf->psk );
-        conf->psk = NULL;
-        conf->psk_len = 0;
-    }
-
-    if( conf->psk_identity != NULL )
-    {
-        mbedtls_platform_zeroize( conf->psk_identity, conf->psk_identity_len );
-        mbedtls_free( conf->psk_identity );
-        conf->psk_identity = NULL;
-        conf->psk_identity_len = 0;
-    }
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    ssl_key_cert_free( conf->key_cert );
-#endif
-
-    mbedtls_platform_zeroize( conf, sizeof( mbedtls_ssl_config ) );
-}
-
-#if defined(MBEDTLS_PK_C) && \
-    ( defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C) )
-/*
- * Convert between MBEDTLS_PK_XXX and SSL_SIG_XXX
- */
-unsigned char mbedtls_ssl_sig_from_pk( mbedtls_pk_context *pk )
-{
-#if defined(MBEDTLS_RSA_C)
-    if( mbedtls_pk_can_do( pk, MBEDTLS_PK_RSA ) )
-        return( MBEDTLS_SSL_SIG_RSA );
-#endif
-#if defined(MBEDTLS_ECDSA_C)
-    if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECDSA ) )
-        return( MBEDTLS_SSL_SIG_ECDSA );
-#endif
-    return( MBEDTLS_SSL_SIG_ANON );
-}
-
-unsigned char mbedtls_ssl_sig_from_pk_alg( mbedtls_pk_type_t type )
-{
-    switch( type ) {
-        case MBEDTLS_PK_RSA:
-            return( MBEDTLS_SSL_SIG_RSA );
-        case MBEDTLS_PK_ECDSA:
-        case MBEDTLS_PK_ECKEY:
-            return( MBEDTLS_SSL_SIG_ECDSA );
-        default:
-            return( MBEDTLS_SSL_SIG_ANON );
-    }
-}
-
-mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig )
-{
-    switch( sig )
-    {
-#if defined(MBEDTLS_RSA_C)
-        case MBEDTLS_SSL_SIG_RSA:
-            return( MBEDTLS_PK_RSA );
-#endif
-#if defined(MBEDTLS_ECDSA_C)
-        case MBEDTLS_SSL_SIG_ECDSA:
-            return( MBEDTLS_PK_ECDSA );
-#endif
-        default:
-            return( MBEDTLS_PK_NONE );
-    }
-}
-#endif /* MBEDTLS_PK_C && ( MBEDTLS_RSA_C || MBEDTLS_ECDSA_C ) */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
-    defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-
-/* Find an entry in a signature-hash set matching a given hash algorithm. */
-mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find( mbedtls_ssl_sig_hash_set_t *set,
-                                                 mbedtls_pk_type_t sig_alg )
-{
-    switch( sig_alg )
-    {
-        case MBEDTLS_PK_RSA:
-            return( set->rsa );
-        case MBEDTLS_PK_ECDSA:
-            return( set->ecdsa );
-        default:
-            return( MBEDTLS_MD_NONE );
-    }
-}
-
-/* Add a signature-hash-pair to a signature-hash set */
-void mbedtls_ssl_sig_hash_set_add( mbedtls_ssl_sig_hash_set_t *set,
-                                   mbedtls_pk_type_t sig_alg,
-                                   mbedtls_md_type_t md_alg )
-{
-    switch( sig_alg )
-    {
-        case MBEDTLS_PK_RSA:
-            if( set->rsa == MBEDTLS_MD_NONE )
-                set->rsa = md_alg;
-            break;
-
-        case MBEDTLS_PK_ECDSA:
-            if( set->ecdsa == MBEDTLS_MD_NONE )
-                set->ecdsa = md_alg;
-            break;
-
-        default:
-            break;
-    }
-}
-
-/* Allow exactly one hash algorithm for each signature. */
-void mbedtls_ssl_sig_hash_set_const_hash( mbedtls_ssl_sig_hash_set_t *set,
-                                          mbedtls_md_type_t md_alg )
-{
-    set->rsa   = md_alg;
-    set->ecdsa = md_alg;
-}
-
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2) &&
-          MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-/*
- * Convert from MBEDTLS_SSL_HASH_XXX to MBEDTLS_MD_XXX
- */
-mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash )
-{
-    switch( hash )
-    {
-#if defined(MBEDTLS_MD5_C)
-        case MBEDTLS_SSL_HASH_MD5:
-            return( MBEDTLS_MD_MD5 );
-#endif
-#if defined(MBEDTLS_SHA1_C)
-        case MBEDTLS_SSL_HASH_SHA1:
-            return( MBEDTLS_MD_SHA1 );
-#endif
-#if defined(MBEDTLS_SHA256_C)
-        case MBEDTLS_SSL_HASH_SHA224:
-            return( MBEDTLS_MD_SHA224 );
-        case MBEDTLS_SSL_HASH_SHA256:
-            return( MBEDTLS_MD_SHA256 );
-#endif
-#if defined(MBEDTLS_SHA512_C)
-        case MBEDTLS_SSL_HASH_SHA384:
-            return( MBEDTLS_MD_SHA384 );
-        case MBEDTLS_SSL_HASH_SHA512:
-            return( MBEDTLS_MD_SHA512 );
-#endif
-        default:
-            return( MBEDTLS_MD_NONE );
-    }
-}
-
-/*
- * Convert from MBEDTLS_MD_XXX to MBEDTLS_SSL_HASH_XXX
- */
-unsigned char mbedtls_ssl_hash_from_md_alg( int md )
-{
-    switch( md )
-    {
-#if defined(MBEDTLS_MD5_C)
-        case MBEDTLS_MD_MD5:
-            return( MBEDTLS_SSL_HASH_MD5 );
-#endif
-#if defined(MBEDTLS_SHA1_C)
-        case MBEDTLS_MD_SHA1:
-            return( MBEDTLS_SSL_HASH_SHA1 );
-#endif
-#if defined(MBEDTLS_SHA256_C)
-        case MBEDTLS_MD_SHA224:
-            return( MBEDTLS_SSL_HASH_SHA224 );
-        case MBEDTLS_MD_SHA256:
-            return( MBEDTLS_SSL_HASH_SHA256 );
-#endif
-#if defined(MBEDTLS_SHA512_C)
-        case MBEDTLS_MD_SHA384:
-            return( MBEDTLS_SSL_HASH_SHA384 );
-        case MBEDTLS_MD_SHA512:
-            return( MBEDTLS_SSL_HASH_SHA512 );
-#endif
-        default:
-            return( MBEDTLS_SSL_HASH_NONE );
-    }
-}
-
-#if defined(MBEDTLS_ECP_C)
-/*
- * Check if a curve proposed by the peer is in our list.
- * Return 0 if we're willing to use it, -1 otherwise.
- */
-int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id )
-{
-    const mbedtls_ecp_group_id *gid;
-
-    if( ssl->conf->curve_list == NULL )
-        return( -1 );
-
-    for( gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++ )
-        if( *gid == grp_id )
-            return( 0 );
-
-    return( -1 );
-}
-#endif /* MBEDTLS_ECP_C */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
-/*
- * Check if a hash proposed by the peer is in our list.
- * Return 0 if we're willing to use it, -1 otherwise.
- */
-int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl,
-                                mbedtls_md_type_t md )
-{
-    const int *cur;
-
-    if( ssl->conf->sig_hashes == NULL )
-        return( -1 );
-
-    for( cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++ )
-        if( *cur == (int) md )
-            return( 0 );
-
-    return( -1 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert,
-                          const mbedtls_ssl_ciphersuite_t *ciphersuite,
-                          int cert_endpoint,
-                          uint32_t *flags )
-{
-    int ret = 0;
-#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
-    int usage = 0;
-#endif
-#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
-    const char *ext_oid;
-    size_t ext_len;
-#endif
-
-#if !defined(MBEDTLS_X509_CHECK_KEY_USAGE) &&          \
-    !defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
-    ((void) cert);
-    ((void) cert_endpoint);
-    ((void) flags);
-#endif
-
-#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
-    if( cert_endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
-        /* Server part of the key exchange */
-        switch( ciphersuite->key_exchange )
-        {
-            case MBEDTLS_KEY_EXCHANGE_RSA:
-            case MBEDTLS_KEY_EXCHANGE_RSA_PSK:
-                usage = MBEDTLS_X509_KU_KEY_ENCIPHERMENT;
-                break;
-
-            case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
-            case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
-            case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
-                usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE;
-                break;
-
-            case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
-            case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
-                usage = MBEDTLS_X509_KU_KEY_AGREEMENT;
-                break;
-
-            /* Don't use default: we want warnings when adding new values */
-            case MBEDTLS_KEY_EXCHANGE_NONE:
-            case MBEDTLS_KEY_EXCHANGE_PSK:
-            case MBEDTLS_KEY_EXCHANGE_DHE_PSK:
-            case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK:
-            case MBEDTLS_KEY_EXCHANGE_ECJPAKE:
-                usage = 0;
-        }
-    }
-    else
-    {
-        /* Client auth: we only implement rsa_sign and mbedtls_ecdsa_sign for now */
-        usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE;
-    }
-
-    if( mbedtls_x509_crt_check_key_usage( cert, usage ) != 0 )
-    {
-        *flags |= MBEDTLS_X509_BADCERT_KEY_USAGE;
-        ret = -1;
-    }
-#else
-    ((void) ciphersuite);
-#endif /* MBEDTLS_X509_CHECK_KEY_USAGE */
-
-#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
-    if( cert_endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
-        ext_oid = MBEDTLS_OID_SERVER_AUTH;
-        ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_SERVER_AUTH );
-    }
-    else
-    {
-        ext_oid = MBEDTLS_OID_CLIENT_AUTH;
-        ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_CLIENT_AUTH );
-    }
-
-    if( mbedtls_x509_crt_check_extended_key_usage( cert, ext_oid, ext_len ) != 0 )
-    {
-        *flags |= MBEDTLS_X509_BADCERT_EXT_KEY_USAGE;
-        ret = -1;
-    }
-#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */
-
-    return( ret );
-}
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-/*
- * Convert version numbers to/from wire format
- * and, for DTLS, to/from TLS equivalent.
- *
- * For TLS this is the identity.
- * For DTLS, use 1's complement (v -> 255 - v, and then map as follows:
- * 1.0 <-> 3.2      (DTLS 1.0 is based on TLS 1.1)
- * 1.x <-> 3.x+1    for x != 0 (DTLS 1.2 based on TLS 1.2)
- */
-void mbedtls_ssl_write_version( int major, int minor, int transport,
-                        unsigned char ver[2] )
-{
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        if( minor == MBEDTLS_SSL_MINOR_VERSION_2 )
-            --minor; /* DTLS 1.0 stored as TLS 1.1 internally */
-
-        ver[0] = (unsigned char)( 255 - ( major - 2 ) );
-        ver[1] = (unsigned char)( 255 - ( minor - 1 ) );
-    }
-    else
-#else
-    ((void) transport);
-#endif
-    {
-        ver[0] = (unsigned char) major;
-        ver[1] = (unsigned char) minor;
-    }
-}
-
-void mbedtls_ssl_read_version( int *major, int *minor, int transport,
-                       const unsigned char ver[2] )
-{
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        *major = 255 - ver[0] + 2;
-        *minor = 255 - ver[1] + 1;
-
-        if( *minor == MBEDTLS_SSL_MINOR_VERSION_1 )
-            ++*minor; /* DTLS 1.0 stored as TLS 1.1 internally */
-    }
-    else
-#else
-    ((void) transport);
-#endif
-    {
-        *major = ver[0];
-        *minor = ver[1];
-    }
-}
-
-int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md )
-{
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
-        return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH;
-
-    switch( md )
-    {
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
-#if defined(MBEDTLS_MD5_C)
-        case MBEDTLS_SSL_HASH_MD5:
-            return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH;
-#endif
-#if defined(MBEDTLS_SHA1_C)
-        case MBEDTLS_SSL_HASH_SHA1:
-            ssl->handshake->calc_verify = ssl_calc_verify_tls;
-            break;
-#endif
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */
-#if defined(MBEDTLS_SHA512_C)
-        case MBEDTLS_SSL_HASH_SHA384:
-            ssl->handshake->calc_verify = ssl_calc_verify_tls_sha384;
-            break;
-#endif
-#if defined(MBEDTLS_SHA256_C)
-        case MBEDTLS_SSL_HASH_SHA256:
-            ssl->handshake->calc_verify = ssl_calc_verify_tls_sha256;
-            break;
-#endif
-        default:
-            return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH;
-    }
-
-    return 0;
-#else /* !MBEDTLS_SSL_PROTO_TLS1_2 */
-    (void) ssl;
-    (void) md;
-
-    return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH;
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-}
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_1)
-int mbedtls_ssl_get_key_exchange_md_ssl_tls( mbedtls_ssl_context *ssl,
-                                        unsigned char *output,
-                                        unsigned char *data, size_t data_len )
-{
-    int ret = 0;
-    mbedtls_md5_context mbedtls_md5;
-    mbedtls_sha1_context mbedtls_sha1;
-
-    mbedtls_md5_init( &mbedtls_md5 );
-    mbedtls_sha1_init( &mbedtls_sha1 );
-
-    /*
-     * digitally-signed struct {
-     *     opaque md5_hash[16];
-     *     opaque sha_hash[20];
-     * };
-     *
-     * md5_hash
-     *     MD5(ClientHello.random + ServerHello.random
-     *                            + ServerParams);
-     * sha_hash
-     *     SHA(ClientHello.random + ServerHello.random
-     *                            + ServerParams);
-     */
-    if( ( ret = mbedtls_md5_starts_ret( &mbedtls_md5 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_starts_ret", ret );
-        goto exit;
-    }
-    if( ( ret = mbedtls_md5_update_ret( &mbedtls_md5,
-                                        ssl->handshake->randbytes, 64 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_update_ret", ret );
-        goto exit;
-    }
-    if( ( ret = mbedtls_md5_update_ret( &mbedtls_md5, data, data_len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_update_ret", ret );
-        goto exit;
-    }
-    if( ( ret = mbedtls_md5_finish_ret( &mbedtls_md5, output ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_finish_ret", ret );
-        goto exit;
-    }
-
-    if( ( ret = mbedtls_sha1_starts_ret( &mbedtls_sha1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_starts_ret", ret );
-        goto exit;
-    }
-    if( ( ret = mbedtls_sha1_update_ret( &mbedtls_sha1,
-                                         ssl->handshake->randbytes, 64 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_update_ret", ret );
-        goto exit;
-    }
-    if( ( ret = mbedtls_sha1_update_ret( &mbedtls_sha1, data,
-                                         data_len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_update_ret", ret );
-        goto exit;
-    }
-    if( ( ret = mbedtls_sha1_finish_ret( &mbedtls_sha1,
-                                         output + 16 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_finish_ret", ret );
-        goto exit;
-    }
-
-exit:
-    mbedtls_md5_free( &mbedtls_md5 );
-    mbedtls_sha1_free( &mbedtls_sha1 );
-
-    if( ret != 0 )
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-
-    return( ret );
-
-}
-#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
-          MBEDTLS_SSL_PROTO_TLS1_1 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
-    defined(MBEDTLS_SSL_PROTO_TLS1_2)
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
-                                            unsigned char *hash, size_t *hashlen,
-                                            unsigned char *data, size_t data_len,
-                                            mbedtls_md_type_t md_alg )
-{
-    psa_status_t status;
-    psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT;
-    psa_algorithm_t hash_alg = mbedtls_psa_translate_md( md_alg );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "Perform PSA-based computation of digest of ServerKeyExchange" ) );
-
-    if( ( status = psa_hash_setup( &hash_operation,
-                                   hash_alg ) ) != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_setup", status );
-        goto exit;
-    }
-
-    if( ( status = psa_hash_update( &hash_operation, ssl->handshake->randbytes,
-                                    64 ) ) != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_update", status );
-        goto exit;
-    }
-
-    if( ( status = psa_hash_update( &hash_operation,
-                                    data, data_len ) ) != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_update", status );
-        goto exit;
-    }
-
-    if( ( status = psa_hash_finish( &hash_operation, hash, MBEDTLS_MD_MAX_SIZE,
-                                    hashlen ) ) != PSA_SUCCESS )
-    {
-         MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_finish", status );
-         goto exit;
-    }
-
-exit:
-    if( status != PSA_SUCCESS )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-        switch( status )
-        {
-            case PSA_ERROR_NOT_SUPPORTED:
-                return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
-            case PSA_ERROR_BAD_STATE: /* Intentional fallthrough */
-            case PSA_ERROR_BUFFER_TOO_SMALL:
-                return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
-            case PSA_ERROR_INSUFFICIENT_MEMORY:
-                return( MBEDTLS_ERR_MD_ALLOC_FAILED );
-            default:
-                return( MBEDTLS_ERR_MD_HW_ACCEL_FAILED );
-        }
-    }
-    return( 0 );
-}
-
-#else
-
-int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
-                                            unsigned char *hash, size_t *hashlen,
-                                            unsigned char *data, size_t data_len,
-                                            mbedtls_md_type_t md_alg )
-{
-    int ret = 0;
-    mbedtls_md_context_t ctx;
-    const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
-    *hashlen = mbedtls_md_get_size( md_info );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "Perform mbedtls-based computation of digest of ServerKeyExchange" ) );
-
-    mbedtls_md_init( &ctx );
-
-    /*
-     * digitally-signed struct {
-     *     opaque client_random[32];
-     *     opaque server_random[32];
-     *     ServerDHParams params;
-     * };
-     */
-    if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret );
-        goto exit;
-    }
-    if( ( ret = mbedtls_md_starts( &ctx ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_starts", ret );
-        goto exit;
-    }
-    if( ( ret = mbedtls_md_update( &ctx, ssl->handshake->randbytes, 64 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_update", ret );
-        goto exit;
-    }
-    if( ( ret = mbedtls_md_update( &ctx, data, data_len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_update", ret );
-        goto exit;
-    }
-    if( ( ret = mbedtls_md_finish( &ctx, hash ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_finish", ret );
-        goto exit;
-    }
-
-exit:
-    mbedtls_md_free( &ctx );
-
-    if( ret != 0 )
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-
-    return( ret );
-}
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
-          MBEDTLS_SSL_PROTO_TLS1_2 */
-
-#endif /* MBEDTLS_SSL_TLS_C */
diff --git a/library/version_features.c b/library/version_features.c
index afae4f3..4f1da6a 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -297,15 +297,6 @@
 #if defined(MBEDTLS_CIPHER_PADDING_ZEROS)
     "MBEDTLS_CIPHER_PADDING_ZEROS",
 #endif /* MBEDTLS_CIPHER_PADDING_ZEROS */
-#if defined(MBEDTLS_ENABLE_WEAK_CIPHERSUITES)
-    "MBEDTLS_ENABLE_WEAK_CIPHERSUITES",
-#endif /* MBEDTLS_ENABLE_WEAK_CIPHERSUITES */
-#if defined(MBEDTLS_REMOVE_ARC4_CIPHERSUITES)
-    "MBEDTLS_REMOVE_ARC4_CIPHERSUITES",
-#endif /* MBEDTLS_REMOVE_ARC4_CIPHERSUITES */
-#if defined(MBEDTLS_REMOVE_3DES_CIPHERSUITES)
-    "MBEDTLS_REMOVE_3DES_CIPHERSUITES",
-#endif /* MBEDTLS_REMOVE_3DES_CIPHERSUITES */
 #if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
     "MBEDTLS_ECP_DP_SECP192R1_ENABLED",
 #endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
@@ -357,39 +348,6 @@
 #if defined(MBEDTLS_ECDSA_DETERMINISTIC)
     "MBEDTLS_ECDSA_DETERMINISTIC",
 #endif /* MBEDTLS_ECDSA_DETERMINISTIC */
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_PSK_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_RSA_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED",
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 #if defined(MBEDTLS_PK_PARSE_EC_EXTENDED)
     "MBEDTLS_PK_PARSE_EC_EXTENDED",
 #endif /* MBEDTLS_PK_PARSE_EC_EXTENDED */
@@ -447,90 +405,6 @@
 #if defined(MBEDTLS_SHA256_SMALLER)
     "MBEDTLS_SHA256_SMALLER",
 #endif /* MBEDTLS_SHA256_SMALLER */
-#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
-    "MBEDTLS_SSL_ALL_ALERT_MESSAGES",
-#endif /* MBEDTLS_SSL_ALL_ALERT_MESSAGES */
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    "MBEDTLS_SSL_ASYNC_PRIVATE",
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-#if defined(MBEDTLS_SSL_DEBUG_ALL)
-    "MBEDTLS_SSL_DEBUG_ALL",
-#endif /* MBEDTLS_SSL_DEBUG_ALL */
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    "MBEDTLS_SSL_ENCRYPT_THEN_MAC",
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    "MBEDTLS_SSL_EXTENDED_MASTER_SECRET",
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
-    "MBEDTLS_SSL_FALLBACK_SCSV",
-#endif /* MBEDTLS_SSL_FALLBACK_SCSV */
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    "MBEDTLS_SSL_KEEP_PEER_CERTIFICATE",
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    "MBEDTLS_SSL_HW_RECORD_ACCEL",
-#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-    "MBEDTLS_SSL_CBC_RECORD_SPLITTING",
-#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    "MBEDTLS_SSL_RENEGOTIATION",
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
-    "MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO",
-#endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */
-#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
-    "MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE",
-#endif /* MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE */
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    "MBEDTLS_SSL_MAX_FRAGMENT_LENGTH",
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    "MBEDTLS_SSL_PROTO_SSL3",
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1)
-    "MBEDTLS_SSL_PROTO_TLS1",
-#endif /* MBEDTLS_SSL_PROTO_TLS1 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    "MBEDTLS_SSL_PROTO_TLS1_1",
-#endif /* MBEDTLS_SSL_PROTO_TLS1_1 */
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    "MBEDTLS_SSL_PROTO_TLS1_2",
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    "MBEDTLS_SSL_PROTO_DTLS",
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-#if defined(MBEDTLS_SSL_ALPN)
-    "MBEDTLS_SSL_ALPN",
-#endif /* MBEDTLS_SSL_ALPN */
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    "MBEDTLS_SSL_DTLS_ANTI_REPLAY",
-#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-    "MBEDTLS_SSL_DTLS_HELLO_VERIFY",
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
-#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE)
-    "MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE",
-#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE */
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-    "MBEDTLS_SSL_DTLS_BADMAC_LIMIT",
-#endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    "MBEDTLS_SSL_SESSION_TICKETS",
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-#if defined(MBEDTLS_SSL_EXPORT_KEYS)
-    "MBEDTLS_SSL_EXPORT_KEYS",
-#endif /* MBEDTLS_SSL_EXPORT_KEYS */
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    "MBEDTLS_SSL_SERVER_NAME_INDICATION",
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    "MBEDTLS_SSL_TRUNCATED_HMAC",
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT)
-    "MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT",
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT */
 #if defined(MBEDTLS_THREADING_ALT)
     "MBEDTLS_THREADING_ALT",
 #endif /* MBEDTLS_THREADING_ALT */
@@ -543,27 +417,6 @@
 #if defined(MBEDTLS_VERSION_FEATURES)
     "MBEDTLS_VERSION_FEATURES",
 #endif /* MBEDTLS_VERSION_FEATURES */
-#if defined(MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3)
-    "MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3",
-#endif /* MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 */
-#if defined(MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION)
-    "MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION",
-#endif /* MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION */
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    "MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK",
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
-    "MBEDTLS_X509_CHECK_KEY_USAGE",
-#endif /* MBEDTLS_X509_CHECK_KEY_USAGE */
-#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
-    "MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE",
-#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
-    "MBEDTLS_X509_RSASSA_PSS_SUPPORT",
-#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    "MBEDTLS_ZLIB_SUPPORT",
-#endif /* MBEDTLS_ZLIB_SUPPORT */
 #if defined(MBEDTLS_AESNI_C)
     "MBEDTLS_AESNI_C",
 #endif /* MBEDTLS_AESNI_C */
@@ -597,9 +450,6 @@
 #if defined(MBEDTLS_CCM_C)
     "MBEDTLS_CCM_C",
 #endif /* MBEDTLS_CCM_C */
-#if defined(MBEDTLS_CERTS_C)
-    "MBEDTLS_CERTS_C",
-#endif /* MBEDTLS_CERTS_C */
 #if defined(MBEDTLS_CHACHA20_C)
     "MBEDTLS_CHACHA20_C",
 #endif /* MBEDTLS_CHACHA20_C */
@@ -615,9 +465,6 @@
 #if defined(MBEDTLS_CTR_DRBG_C)
     "MBEDTLS_CTR_DRBG_C",
 #endif /* MBEDTLS_CTR_DRBG_C */
-#if defined(MBEDTLS_DEBUG_C)
-    "MBEDTLS_DEBUG_C",
-#endif /* MBEDTLS_DEBUG_C */
 #if defined(MBEDTLS_DES_C)
     "MBEDTLS_DES_C",
 #endif /* MBEDTLS_DES_C */
@@ -672,9 +519,6 @@
 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
     "MBEDTLS_MEMORY_BUFFER_ALLOC_C",
 #endif /* MBEDTLS_MEMORY_BUFFER_ALLOC_C */
-#if defined(MBEDTLS_NET_C)
-    "MBEDTLS_NET_C",
-#endif /* MBEDTLS_NET_C */
 #if defined(MBEDTLS_OID_C)
     "MBEDTLS_OID_C",
 #endif /* MBEDTLS_OID_C */
@@ -699,9 +543,6 @@
 #if defined(MBEDTLS_PKCS5_C)
     "MBEDTLS_PKCS5_C",
 #endif /* MBEDTLS_PKCS5_C */
-#if defined(MBEDTLS_PKCS11_C)
-    "MBEDTLS_PKCS11_C",
-#endif /* MBEDTLS_PKCS11_C */
 #if defined(MBEDTLS_PKCS12_C)
     "MBEDTLS_PKCS12_C",
 #endif /* MBEDTLS_PKCS12_C */
@@ -735,24 +576,6 @@
 #if defined(MBEDTLS_SHA512_C)
     "MBEDTLS_SHA512_C",
 #endif /* MBEDTLS_SHA512_C */
-#if defined(MBEDTLS_SSL_CACHE_C)
-    "MBEDTLS_SSL_CACHE_C",
-#endif /* MBEDTLS_SSL_CACHE_C */
-#if defined(MBEDTLS_SSL_COOKIE_C)
-    "MBEDTLS_SSL_COOKIE_C",
-#endif /* MBEDTLS_SSL_COOKIE_C */
-#if defined(MBEDTLS_SSL_TICKET_C)
-    "MBEDTLS_SSL_TICKET_C",
-#endif /* MBEDTLS_SSL_TICKET_C */
-#if defined(MBEDTLS_SSL_CLI_C)
-    "MBEDTLS_SSL_CLI_C",
-#endif /* MBEDTLS_SSL_CLI_C */
-#if defined(MBEDTLS_SSL_SRV_C)
-    "MBEDTLS_SSL_SRV_C",
-#endif /* MBEDTLS_SSL_SRV_C */
-#if defined(MBEDTLS_SSL_TLS_C)
-    "MBEDTLS_SSL_TLS_C",
-#endif /* MBEDTLS_SSL_TLS_C */
 #if defined(MBEDTLS_THREADING_C)
     "MBEDTLS_THREADING_C",
 #endif /* MBEDTLS_THREADING_C */
@@ -762,27 +585,6 @@
 #if defined(MBEDTLS_VERSION_C)
     "MBEDTLS_VERSION_C",
 #endif /* MBEDTLS_VERSION_C */
-#if defined(MBEDTLS_X509_USE_C)
-    "MBEDTLS_X509_USE_C",
-#endif /* MBEDTLS_X509_USE_C */
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    "MBEDTLS_X509_CRT_PARSE_C",
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-#if defined(MBEDTLS_X509_CRL_PARSE_C)
-    "MBEDTLS_X509_CRL_PARSE_C",
-#endif /* MBEDTLS_X509_CRL_PARSE_C */
-#if defined(MBEDTLS_X509_CSR_PARSE_C)
-    "MBEDTLS_X509_CSR_PARSE_C",
-#endif /* MBEDTLS_X509_CSR_PARSE_C */
-#if defined(MBEDTLS_X509_CREATE_C)
-    "MBEDTLS_X509_CREATE_C",
-#endif /* MBEDTLS_X509_CREATE_C */
-#if defined(MBEDTLS_X509_CRT_WRITE_C)
-    "MBEDTLS_X509_CRT_WRITE_C",
-#endif /* MBEDTLS_X509_CRT_WRITE_C */
-#if defined(MBEDTLS_X509_CSR_WRITE_C)
-    "MBEDTLS_X509_CSR_WRITE_C",
-#endif /* MBEDTLS_X509_CSR_WRITE_C */
 #if defined(MBEDTLS_XTEA_C)
     "MBEDTLS_XTEA_C",
 #endif /* MBEDTLS_XTEA_C */
diff --git a/library/x509.c b/library/x509.c
deleted file mode 100644
index 3f8e290..0000000
--- a/library/x509.c
+++ /dev/null
@@ -1,1062 +0,0 @@
-/*
- *  X.509 common functions for parsing and verification
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- *  The ITU-T X.509 standard defines a certificate format for PKI.
- *
- *  http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
- *  http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
- *  http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
- *
- *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
- *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_X509_USE_C)
-
-#include "mbedtls/x509.h"
-#include "mbedtls/asn1.h"
-#include "mbedtls/oid.h"
-
-#include <stdio.h>
-#include <string.h>
-
-#if defined(MBEDTLS_PEM_PARSE_C)
-#include "mbedtls/pem.h"
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_free      free
-#define mbedtls_calloc    calloc
-#define mbedtls_printf    printf
-#define mbedtls_snprintf  snprintf
-#endif
-
-#if defined(MBEDTLS_HAVE_TIME)
-#include "mbedtls/platform_time.h"
-#endif
-#if defined(MBEDTLS_HAVE_TIME_DATE)
-#include "mbedtls/platform_util.h"
-#include <time.h>
-#endif
-
-#define CHECK(code) if( ( ret = code ) != 0 ){ return( ret ); }
-#define CHECK_RANGE(min, max, val) if( val < min || val > max ){ return( ret ); }
-
-/*
- *  CertificateSerialNumber  ::=  INTEGER
- */
-int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end,
-                     mbedtls_x509_buf *serial )
-{
-    int ret;
-
-    if( ( end - *p ) < 1 )
-        return( MBEDTLS_ERR_X509_INVALID_SERIAL +
-                MBEDTLS_ERR_ASN1_OUT_OF_DATA );
-
-    if( **p != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_PRIMITIVE | 2 ) &&
-        **p !=   MBEDTLS_ASN1_INTEGER )
-        return( MBEDTLS_ERR_X509_INVALID_SERIAL +
-                MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
-
-    serial->tag = *(*p)++;
-
-    if( ( ret = mbedtls_asn1_get_len( p, end, &serial->len ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_SERIAL + ret );
-
-    serial->p = *p;
-    *p += serial->len;
-
-    return( 0 );
-}
-
-/* Get an algorithm identifier without parameters (eg for signatures)
- *
- *  AlgorithmIdentifier  ::=  SEQUENCE  {
- *       algorithm               OBJECT IDENTIFIER,
- *       parameters              ANY DEFINED BY algorithm OPTIONAL  }
- */
-int mbedtls_x509_get_alg_null( unsigned char **p, const unsigned char *end,
-                       mbedtls_x509_buf *alg )
-{
-    int ret;
-
-    if( ( ret = mbedtls_asn1_get_alg_null( p, end, alg ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-    return( 0 );
-}
-
-/*
- * Parse an algorithm identifier with (optional) parameters
- */
-int mbedtls_x509_get_alg( unsigned char **p, const unsigned char *end,
-                  mbedtls_x509_buf *alg, mbedtls_x509_buf *params )
-{
-    int ret;
-
-    if( ( ret = mbedtls_asn1_get_alg( p, end, alg, params ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
-/*
- * HashAlgorithm ::= AlgorithmIdentifier
- *
- * AlgorithmIdentifier  ::=  SEQUENCE  {
- *      algorithm               OBJECT IDENTIFIER,
- *      parameters              ANY DEFINED BY algorithm OPTIONAL  }
- *
- * For HashAlgorithm, parameters MUST be NULL or absent.
- */
-static int x509_get_hash_alg( const mbedtls_x509_buf *alg, mbedtls_md_type_t *md_alg )
-{
-    int ret;
-    unsigned char *p;
-    const unsigned char *end;
-    mbedtls_x509_buf md_oid;
-    size_t len;
-
-    /* Make sure we got a SEQUENCE and setup bounds */
-    if( alg->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
-        return( MBEDTLS_ERR_X509_INVALID_ALG +
-                MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
-
-    p = (unsigned char *) alg->p;
-    end = p + alg->len;
-
-    if( p >= end )
-        return( MBEDTLS_ERR_X509_INVALID_ALG +
-                MBEDTLS_ERR_ASN1_OUT_OF_DATA );
-
-    /* Parse md_oid */
-    md_oid.tag = *p;
-
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &md_oid.len, MBEDTLS_ASN1_OID ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-    md_oid.p = p;
-    p += md_oid.len;
-
-    /* Get md_alg from md_oid */
-    if( ( ret = mbedtls_oid_get_md_alg( &md_oid, md_alg ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-    /* Make sure params is absent of NULL */
-    if( p == end )
-        return( 0 );
-
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_NULL ) ) != 0 || len != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-    if( p != end )
-        return( MBEDTLS_ERR_X509_INVALID_ALG +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    return( 0 );
-}
-
-/*
- *    RSASSA-PSS-params  ::=  SEQUENCE  {
- *       hashAlgorithm     [0] HashAlgorithm DEFAULT sha1Identifier,
- *       maskGenAlgorithm  [1] MaskGenAlgorithm DEFAULT mgf1SHA1Identifier,
- *       saltLength        [2] INTEGER DEFAULT 20,
- *       trailerField      [3] INTEGER DEFAULT 1  }
- *    -- Note that the tags in this Sequence are explicit.
- *
- * RFC 4055 (which defines use of RSASSA-PSS in PKIX) states that the value
- * of trailerField MUST be 1, and PKCS#1 v2.2 doesn't even define any other
- * option. Enfore this at parsing time.
- */
-int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params,
-                                mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md,
-                                int *salt_len )
-{
-    int ret;
-    unsigned char *p;
-    const unsigned char *end, *end2;
-    size_t len;
-    mbedtls_x509_buf alg_id, alg_params;
-
-    /* First set everything to defaults */
-    *md_alg = MBEDTLS_MD_SHA1;
-    *mgf_md = MBEDTLS_MD_SHA1;
-    *salt_len = 20;
-
-    /* Make sure params is a SEQUENCE and setup bounds */
-    if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
-        return( MBEDTLS_ERR_X509_INVALID_ALG +
-                MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
-
-    p = (unsigned char *) params->p;
-    end = p + params->len;
-
-    if( p == end )
-        return( 0 );
-
-    /*
-     * HashAlgorithm
-     */
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-                    MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ) == 0 )
-    {
-        end2 = p + len;
-
-        /* HashAlgorithm ::= AlgorithmIdentifier (without parameters) */
-        if( ( ret = mbedtls_x509_get_alg_null( &p, end2, &alg_id ) ) != 0 )
-            return( ret );
-
-        if( ( ret = mbedtls_oid_get_md_alg( &alg_id, md_alg ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-        if( p != end2 )
-            return( MBEDTLS_ERR_X509_INVALID_ALG +
-                    MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-    }
-    else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-        return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-    if( p == end )
-        return( 0 );
-
-    /*
-     * MaskGenAlgorithm
-     */
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-                    MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 1 ) ) == 0 )
-    {
-        end2 = p + len;
-
-        /* MaskGenAlgorithm ::= AlgorithmIdentifier (params = HashAlgorithm) */
-        if( ( ret = mbedtls_x509_get_alg( &p, end2, &alg_id, &alg_params ) ) != 0 )
-            return( ret );
-
-        /* Only MFG1 is recognised for now */
-        if( MBEDTLS_OID_CMP( MBEDTLS_OID_MGF1, &alg_id ) != 0 )
-            return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE +
-                    MBEDTLS_ERR_OID_NOT_FOUND );
-
-        /* Parse HashAlgorithm */
-        if( ( ret = x509_get_hash_alg( &alg_params, mgf_md ) ) != 0 )
-            return( ret );
-
-        if( p != end2 )
-            return( MBEDTLS_ERR_X509_INVALID_ALG +
-                    MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-    }
-    else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-        return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-    if( p == end )
-        return( 0 );
-
-    /*
-     * salt_len
-     */
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-                    MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 2 ) ) == 0 )
-    {
-        end2 = p + len;
-
-        if( ( ret = mbedtls_asn1_get_int( &p, end2, salt_len ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-        if( p != end2 )
-            return( MBEDTLS_ERR_X509_INVALID_ALG +
-                    MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-    }
-    else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-        return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-    if( p == end )
-        return( 0 );
-
-    /*
-     * trailer_field (if present, must be 1)
-     */
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-                    MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 3 ) ) == 0 )
-    {
-        int trailer_field;
-
-        end2 = p + len;
-
-        if( ( ret = mbedtls_asn1_get_int( &p, end2, &trailer_field ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-        if( p != end2 )
-            return( MBEDTLS_ERR_X509_INVALID_ALG +
-                    MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-        if( trailer_field != 1 )
-            return( MBEDTLS_ERR_X509_INVALID_ALG );
-    }
-    else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-        return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
-
-    if( p != end )
-        return( MBEDTLS_ERR_X509_INVALID_ALG +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
-
-/*
- *  AttributeTypeAndValue ::= SEQUENCE {
- *    type     AttributeType,
- *    value    AttributeValue }
- *
- *  AttributeType ::= OBJECT IDENTIFIER
- *
- *  AttributeValue ::= ANY DEFINED BY AttributeType
- */
-static int x509_get_attr_type_value( unsigned char **p,
-                                     const unsigned char *end,
-                                     mbedtls_x509_name *cur )
-{
-    int ret;
-    size_t len;
-    mbedtls_x509_buf *oid;
-    mbedtls_x509_buf *val;
-
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_NAME + ret );
-
-    if( ( end - *p ) < 1 )
-        return( MBEDTLS_ERR_X509_INVALID_NAME +
-                MBEDTLS_ERR_ASN1_OUT_OF_DATA );
-
-    oid = &cur->oid;
-    oid->tag = **p;
-
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &oid->len, MBEDTLS_ASN1_OID ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_NAME + ret );
-
-    oid->p = *p;
-    *p += oid->len;
-
-    if( ( end - *p ) < 1 )
-        return( MBEDTLS_ERR_X509_INVALID_NAME +
-                MBEDTLS_ERR_ASN1_OUT_OF_DATA );
-
-    if( **p != MBEDTLS_ASN1_BMP_STRING && **p != MBEDTLS_ASN1_UTF8_STRING      &&
-        **p != MBEDTLS_ASN1_T61_STRING && **p != MBEDTLS_ASN1_PRINTABLE_STRING &&
-        **p != MBEDTLS_ASN1_IA5_STRING && **p != MBEDTLS_ASN1_UNIVERSAL_STRING &&
-        **p != MBEDTLS_ASN1_BIT_STRING )
-        return( MBEDTLS_ERR_X509_INVALID_NAME +
-                MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
-
-    val = &cur->val;
-    val->tag = *(*p)++;
-
-    if( ( ret = mbedtls_asn1_get_len( p, end, &val->len ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_NAME + ret );
-
-    val->p = *p;
-    *p += val->len;
-
-    cur->next = NULL;
-
-    return( 0 );
-}
-
-/*
- *  Name ::= CHOICE { -- only one possibility for now --
- *       rdnSequence  RDNSequence }
- *
- *  RDNSequence ::= SEQUENCE OF RelativeDistinguishedName
- *
- *  RelativeDistinguishedName ::=
- *    SET OF AttributeTypeAndValue
- *
- *  AttributeTypeAndValue ::= SEQUENCE {
- *    type     AttributeType,
- *    value    AttributeValue }
- *
- *  AttributeType ::= OBJECT IDENTIFIER
- *
- *  AttributeValue ::= ANY DEFINED BY AttributeType
- *
- * The data structure is optimized for the common case where each RDN has only
- * one element, which is represented as a list of AttributeTypeAndValue.
- * For the general case we still use a flat list, but we mark elements of the
- * same set so that they are "merged" together in the functions that consume
- * this list, eg mbedtls_x509_dn_gets().
- */
-int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
-                   mbedtls_x509_name *cur )
-{
-    int ret;
-    size_t set_len;
-    const unsigned char *end_set;
-
-    /* don't use recursion, we'd risk stack overflow if not optimized */
-    while( 1 )
-    {
-        /*
-         * parse SET
-         */
-        if( ( ret = mbedtls_asn1_get_tag( p, end, &set_len,
-                MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SET ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_NAME + ret );
-
-        end_set  = *p + set_len;
-
-        while( 1 )
-        {
-            if( ( ret = x509_get_attr_type_value( p, end_set, cur ) ) != 0 )
-                return( ret );
-
-            if( *p == end_set )
-                break;
-
-            /* Mark this item as being no the only one in a set */
-            cur->next_merged = 1;
-
-            cur->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_name ) );
-
-            if( cur->next == NULL )
-                return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-
-            cur = cur->next;
-        }
-
-        /*
-         * continue until end of SEQUENCE is reached
-         */
-        if( *p == end )
-            return( 0 );
-
-        cur->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_name ) );
-
-        if( cur->next == NULL )
-            return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-
-        cur = cur->next;
-    }
-}
-
-static int x509_parse_int( unsigned char **p, size_t n, int *res )
-{
-    *res = 0;
-
-    for( ; n > 0; --n )
-    {
-        if( ( **p < '0') || ( **p > '9' ) )
-            return ( MBEDTLS_ERR_X509_INVALID_DATE );
-
-        *res *= 10;
-        *res += ( *(*p)++ - '0' );
-    }
-
-    return( 0 );
-}
-
-static int x509_date_is_valid(const mbedtls_x509_time *t )
-{
-    int ret = MBEDTLS_ERR_X509_INVALID_DATE;
-    int month_len;
-
-    CHECK_RANGE( 0, 9999, t->year );
-    CHECK_RANGE( 0, 23,   t->hour );
-    CHECK_RANGE( 0, 59,   t->min  );
-    CHECK_RANGE( 0, 59,   t->sec  );
-
-    switch( t->mon )
-    {
-        case 1: case 3: case 5: case 7: case 8: case 10: case 12:
-            month_len = 31;
-            break;
-        case 4: case 6: case 9: case 11:
-            month_len = 30;
-            break;
-        case 2:
-            if( ( !( t->year % 4 ) && t->year % 100 ) ||
-                !( t->year % 400 ) )
-                month_len = 29;
-            else
-                month_len = 28;
-            break;
-        default:
-            return( ret );
-    }
-    CHECK_RANGE( 1, month_len, t->day );
-
-    return( 0 );
-}
-
-/*
- * Parse an ASN1_UTC_TIME (yearlen=2) or ASN1_GENERALIZED_TIME (yearlen=4)
- * field.
- */
-static int x509_parse_time( unsigned char **p, size_t len, size_t yearlen,
-                            mbedtls_x509_time *tm )
-{
-    int ret;
-
-    /*
-     * Minimum length is 10 or 12 depending on yearlen
-     */
-    if ( len < yearlen + 8 )
-        return ( MBEDTLS_ERR_X509_INVALID_DATE );
-    len -= yearlen + 8;
-
-    /*
-     * Parse year, month, day, hour, minute
-     */
-    CHECK( x509_parse_int( p, yearlen, &tm->year ) );
-    if ( 2 == yearlen )
-    {
-        if ( tm->year < 50 )
-            tm->year += 100;
-
-        tm->year += 1900;
-    }
-
-    CHECK( x509_parse_int( p, 2, &tm->mon ) );
-    CHECK( x509_parse_int( p, 2, &tm->day ) );
-    CHECK( x509_parse_int( p, 2, &tm->hour ) );
-    CHECK( x509_parse_int( p, 2, &tm->min ) );
-
-    /*
-     * Parse seconds if present
-     */
-    if ( len >= 2 )
-    {
-        CHECK( x509_parse_int( p, 2, &tm->sec ) );
-        len -= 2;
-    }
-    else
-        return ( MBEDTLS_ERR_X509_INVALID_DATE );
-
-    /*
-     * Parse trailing 'Z' if present
-     */
-    if ( 1 == len && 'Z' == **p )
-    {
-        (*p)++;
-        len--;
-    }
-
-    /*
-     * We should have parsed all characters at this point
-     */
-    if ( 0 != len )
-        return ( MBEDTLS_ERR_X509_INVALID_DATE );
-
-    CHECK( x509_date_is_valid( tm ) );
-
-    return ( 0 );
-}
-
-/*
- *  Time ::= CHOICE {
- *       utcTime        UTCTime,
- *       generalTime    GeneralizedTime }
- */
-int mbedtls_x509_get_time( unsigned char **p, const unsigned char *end,
-                           mbedtls_x509_time *tm )
-{
-    int ret;
-    size_t len, year_len;
-    unsigned char tag;
-
-    if( ( end - *p ) < 1 )
-        return( MBEDTLS_ERR_X509_INVALID_DATE +
-                MBEDTLS_ERR_ASN1_OUT_OF_DATA );
-
-    tag = **p;
-
-    if( tag == MBEDTLS_ASN1_UTC_TIME )
-        year_len = 2;
-    else if( tag == MBEDTLS_ASN1_GENERALIZED_TIME )
-        year_len = 4;
-    else
-        return( MBEDTLS_ERR_X509_INVALID_DATE +
-                MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
-
-    (*p)++;
-    ret = mbedtls_asn1_get_len( p, end, &len );
-
-    if( ret != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_DATE + ret );
-
-    return x509_parse_time( p, len, year_len, tm );
-}
-
-int mbedtls_x509_get_sig( unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig )
-{
-    int ret;
-    size_t len;
-    int tag_type;
-
-    if( ( end - *p ) < 1 )
-        return( MBEDTLS_ERR_X509_INVALID_SIGNATURE +
-                MBEDTLS_ERR_ASN1_OUT_OF_DATA );
-
-    tag_type = **p;
-
-    if( ( ret = mbedtls_asn1_get_bitstring_null( p, end, &len ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_SIGNATURE + ret );
-
-    sig->tag = tag_type;
-    sig->len = len;
-    sig->p = *p;
-
-    *p += len;
-
-    return( 0 );
-}
-
-/*
- * Get signature algorithm from alg OID and optional parameters
- */
-int mbedtls_x509_get_sig_alg( const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params,
-                      mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg,
-                      void **sig_opts )
-{
-    int ret;
-
-    if( *sig_opts != NULL )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    if( ( ret = mbedtls_oid_get_sig_alg( sig_oid, md_alg, pk_alg ) ) != 0 )
-        return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG + ret );
-
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
-    if( *pk_alg == MBEDTLS_PK_RSASSA_PSS )
-    {
-        mbedtls_pk_rsassa_pss_options *pss_opts;
-
-        pss_opts = mbedtls_calloc( 1, sizeof( mbedtls_pk_rsassa_pss_options ) );
-        if( pss_opts == NULL )
-            return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-
-        ret = mbedtls_x509_get_rsassa_pss_params( sig_params,
-                                          md_alg,
-                                          &pss_opts->mgf1_hash_id,
-                                          &pss_opts->expected_salt_len );
-        if( ret != 0 )
-        {
-            mbedtls_free( pss_opts );
-            return( ret );
-        }
-
-        *sig_opts = (void *) pss_opts;
-    }
-    else
-#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
-    {
-        /* Make sure parameters are absent or NULL */
-        if( ( sig_params->tag != MBEDTLS_ASN1_NULL && sig_params->tag != 0 ) ||
-              sig_params->len != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_ALG );
-    }
-
-    return( 0 );
-}
-
-/*
- * X.509 Extensions (No parsing of extensions, pointer should
- * be either manually updated or extensions should be parsed!)
- */
-int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end,
-                  mbedtls_x509_buf *ext, int tag )
-{
-    int ret;
-    size_t len;
-
-    if( *p == end )
-        return( 0 );
-
-    ext->tag = **p;
-
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &ext->len,
-            MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | tag ) ) != 0 )
-        return( ret );
-
-    ext->p = *p;
-    end = *p + ext->len;
-
-    /*
-     * Extensions  ::=  SEQUENCE SIZE (1..MAX) OF Extension
-     *
-     * Extension  ::=  SEQUENCE  {
-     *      extnID      OBJECT IDENTIFIER,
-     *      critical    BOOLEAN DEFAULT FALSE,
-     *      extnValue   OCTET STRING  }
-     */
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-    if( end != *p + len )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    return( 0 );
-}
-
-/*
- * Store the name in printable form into buf; no more
- * than size characters will be written
- */
-int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn )
-{
-    int ret;
-    size_t i, n;
-    unsigned char c, merge = 0;
-    const mbedtls_x509_name *name;
-    const char *short_name = NULL;
-    char s[MBEDTLS_X509_MAX_DN_NAME_SIZE], *p;
-
-    memset( s, 0, sizeof( s ) );
-
-    name = dn;
-    p = buf;
-    n = size;
-
-    while( name != NULL )
-    {
-        if( !name->oid.p )
-        {
-            name = name->next;
-            continue;
-        }
-
-        if( name != dn )
-        {
-            ret = mbedtls_snprintf( p, n, merge ? " + " : ", " );
-            MBEDTLS_X509_SAFE_SNPRINTF;
-        }
-
-        ret = mbedtls_oid_get_attr_short_name( &name->oid, &short_name );
-
-        if( ret == 0 )
-            ret = mbedtls_snprintf( p, n, "%s=", short_name );
-        else
-            ret = mbedtls_snprintf( p, n, "\?\?=" );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        for( i = 0; i < name->val.len; i++ )
-        {
-            if( i >= sizeof( s ) - 1 )
-                break;
-
-            c = name->val.p[i];
-            if( c < 32 || c == 127 || ( c > 128 && c < 160 ) )
-                 s[i] = '?';
-            else s[i] = c;
-        }
-        s[i] = '\0';
-        ret = mbedtls_snprintf( p, n, "%s", s );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        merge = name->next_merged;
-        name = name->next;
-    }
-
-    return( (int) ( size - n ) );
-}
-
-/*
- * Store the serial in printable form into buf; no more
- * than size characters will be written
- */
-int mbedtls_x509_serial_gets( char *buf, size_t size, const mbedtls_x509_buf *serial )
-{
-    int ret;
-    size_t i, n, nr;
-    char *p;
-
-    p = buf;
-    n = size;
-
-    nr = ( serial->len <= 32 )
-        ? serial->len  : 28;
-
-    for( i = 0; i < nr; i++ )
-    {
-        if( i == 0 && nr > 1 && serial->p[i] == 0x0 )
-            continue;
-
-        ret = mbedtls_snprintf( p, n, "%02X%s",
-                serial->p[i], ( i < nr - 1 ) ? ":" : "" );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-    }
-
-    if( nr != serial->len )
-    {
-        ret = mbedtls_snprintf( p, n, "...." );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-    }
-
-    return( (int) ( size - n ) );
-}
-
-/*
- * Helper for writing signature algorithms
- */
-int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid,
-                       mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg,
-                       const void *sig_opts )
-{
-    int ret;
-    char *p = buf;
-    size_t n = size;
-    const char *desc = NULL;
-
-    ret = mbedtls_oid_get_sig_alg_desc( sig_oid, &desc );
-    if( ret != 0 )
-        ret = mbedtls_snprintf( p, n, "???"  );
-    else
-        ret = mbedtls_snprintf( p, n, "%s", desc );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
-    if( pk_alg == MBEDTLS_PK_RSASSA_PSS )
-    {
-        const mbedtls_pk_rsassa_pss_options *pss_opts;
-        const mbedtls_md_info_t *md_info, *mgf_md_info;
-
-        pss_opts = (const mbedtls_pk_rsassa_pss_options *) sig_opts;
-
-        md_info = mbedtls_md_info_from_type( md_alg );
-        mgf_md_info = mbedtls_md_info_from_type( pss_opts->mgf1_hash_id );
-
-        ret = mbedtls_snprintf( p, n, " (%s, MGF1-%s, 0x%02X)",
-                              md_info ? mbedtls_md_get_name( md_info ) : "???",
-                              mgf_md_info ? mbedtls_md_get_name( mgf_md_info ) : "???",
-                              pss_opts->expected_salt_len );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-    }
-#else
-    ((void) pk_alg);
-    ((void) md_alg);
-    ((void) sig_opts);
-#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
-
-    return( (int)( size - n ) );
-}
-
-/*
- * Helper for writing "RSA key size", "EC key size", etc
- */
-int mbedtls_x509_key_size_helper( char *buf, size_t buf_size, const char *name )
-{
-    char *p = buf;
-    size_t n = buf_size;
-    int ret;
-
-    ret = mbedtls_snprintf( p, n, "%s key size", name );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_HAVE_TIME_DATE)
-/*
- * Set the time structure to the current time.
- * Return 0 on success, non-zero on failure.
- */
-static int x509_get_current_time( mbedtls_x509_time *now )
-{
-    struct tm *lt, tm_buf;
-    mbedtls_time_t tt;
-    int ret = 0;
-
-    tt = mbedtls_time( NULL );
-    lt = mbedtls_platform_gmtime_r( &tt, &tm_buf );
-
-    if( lt == NULL )
-        ret = -1;
-    else
-    {
-        now->year = lt->tm_year + 1900;
-        now->mon  = lt->tm_mon  + 1;
-        now->day  = lt->tm_mday;
-        now->hour = lt->tm_hour;
-        now->min  = lt->tm_min;
-        now->sec  = lt->tm_sec;
-    }
-
-    return( ret );
-}
-
-/*
- * Return 0 if before <= after, 1 otherwise
- */
-static int x509_check_time( const mbedtls_x509_time *before, const mbedtls_x509_time *after )
-{
-    if( before->year  > after->year )
-        return( 1 );
-
-    if( before->year == after->year &&
-        before->mon   > after->mon )
-        return( 1 );
-
-    if( before->year == after->year &&
-        before->mon  == after->mon  &&
-        before->day   > after->day )
-        return( 1 );
-
-    if( before->year == after->year &&
-        before->mon  == after->mon  &&
-        before->day  == after->day  &&
-        before->hour  > after->hour )
-        return( 1 );
-
-    if( before->year == after->year &&
-        before->mon  == after->mon  &&
-        before->day  == after->day  &&
-        before->hour == after->hour &&
-        before->min   > after->min  )
-        return( 1 );
-
-    if( before->year == after->year &&
-        before->mon  == after->mon  &&
-        before->day  == after->day  &&
-        before->hour == after->hour &&
-        before->min  == after->min  &&
-        before->sec   > after->sec  )
-        return( 1 );
-
-    return( 0 );
-}
-
-int mbedtls_x509_time_is_past( const mbedtls_x509_time *to )
-{
-    mbedtls_x509_time now;
-
-    if( x509_get_current_time( &now ) != 0 )
-        return( 1 );
-
-    return( x509_check_time( &now, to ) );
-}
-
-int mbedtls_x509_time_is_future( const mbedtls_x509_time *from )
-{
-    mbedtls_x509_time now;
-
-    if( x509_get_current_time( &now ) != 0 )
-        return( 1 );
-
-    return( x509_check_time( from, &now ) );
-}
-
-#else  /* MBEDTLS_HAVE_TIME_DATE */
-
-int mbedtls_x509_time_is_past( const mbedtls_x509_time *to )
-{
-    ((void) to);
-    return( 0 );
-}
-
-int mbedtls_x509_time_is_future( const mbedtls_x509_time *from )
-{
-    ((void) from);
-    return( 0 );
-}
-#endif /* MBEDTLS_HAVE_TIME_DATE */
-
-#if defined(MBEDTLS_SELF_TEST)
-
-#include "mbedtls/x509_crt.h"
-#include "mbedtls/certs.h"
-
-/*
- * Checkup routine
- */
-int mbedtls_x509_self_test( int verbose )
-{
-    int ret = 0;
-#if defined(MBEDTLS_CERTS_C) && defined(MBEDTLS_SHA256_C)
-    uint32_t flags;
-    mbedtls_x509_crt cacert;
-    mbedtls_x509_crt clicert;
-
-    if( verbose != 0 )
-        mbedtls_printf( "  X.509 certificate load: " );
-
-    mbedtls_x509_crt_init( &cacert );
-    mbedtls_x509_crt_init( &clicert );
-
-    ret = mbedtls_x509_crt_parse( &clicert, (const unsigned char *) mbedtls_test_cli_crt,
-                           mbedtls_test_cli_crt_len );
-    if( ret != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
-
-        goto cleanup;
-    }
-
-    ret = mbedtls_x509_crt_parse( &cacert, (const unsigned char *) mbedtls_test_ca_crt,
-                          mbedtls_test_ca_crt_len );
-    if( ret != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
-
-        goto cleanup;
-    }
-
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n  X.509 signature verify: ");
-
-    ret = mbedtls_x509_crt_verify( &clicert, &cacert, NULL, NULL, &flags, NULL, NULL );
-    if( ret != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
-
-        goto cleanup;
-    }
-
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n\n");
-
-cleanup:
-    mbedtls_x509_crt_free( &cacert  );
-    mbedtls_x509_crt_free( &clicert );
-#else
-    ((void) verbose);
-#endif /* MBEDTLS_CERTS_C && MBEDTLS_SHA1_C */
-    return( ret );
-}
-
-#endif /* MBEDTLS_SELF_TEST */
-
-#endif /* MBEDTLS_X509_USE_C */
diff --git a/library/x509_create.c b/library/x509_create.c
deleted file mode 100644
index 546e8fa..0000000
--- a/library/x509_create.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/*
- *  X.509 base functions for creating certificates / CSRs
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_X509_CREATE_C)
-
-#include "mbedtls/x509.h"
-#include "mbedtls/asn1write.h"
-#include "mbedtls/oid.h"
-
-#include <string.h>
-
-/* Structure linking OIDs for X.509 DN AttributeTypes to their
- * string representations and default string encodings used by Mbed TLS. */
-typedef struct {
-   const char *name; /* String representation of AttributeType, e.g.
-                      * "CN" or "emailAddress". */
-   size_t name_len;  /* Length of 'name', without trailing 0 byte. */
-   const char *oid;  /* String representation of OID of AttributeType,
-                      * as per RFC 5280, Appendix A.1. */
-   int default_tag;  /* The default character encoding used for the
-                      * given attribute type, e.g.
-                      * MBEDTLS_ASN1_UTF8_STRING for UTF-8. */
-} x509_attr_descriptor_t;
-
-#define ADD_STRLEN( s )     s, sizeof( s ) - 1
-
-/* X.509 DN attributes from RFC 5280, Appendix A.1. */
-static const x509_attr_descriptor_t x509_attrs[] =
-{
-    { ADD_STRLEN( "CN" ),
-      MBEDTLS_OID_AT_CN, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "commonName" ),
-      MBEDTLS_OID_AT_CN, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "C" ),
-      MBEDTLS_OID_AT_COUNTRY, MBEDTLS_ASN1_PRINTABLE_STRING },
-    { ADD_STRLEN( "countryName" ),
-      MBEDTLS_OID_AT_COUNTRY, MBEDTLS_ASN1_PRINTABLE_STRING },
-    { ADD_STRLEN( "O" ),
-      MBEDTLS_OID_AT_ORGANIZATION, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "organizationName" ),
-      MBEDTLS_OID_AT_ORGANIZATION, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "L" ),
-      MBEDTLS_OID_AT_LOCALITY, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "locality" ),
-      MBEDTLS_OID_AT_LOCALITY, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "R" ),
-      MBEDTLS_OID_PKCS9_EMAIL, MBEDTLS_ASN1_IA5_STRING },
-    { ADD_STRLEN( "OU" ),
-      MBEDTLS_OID_AT_ORG_UNIT, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "organizationalUnitName" ),
-      MBEDTLS_OID_AT_ORG_UNIT, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "ST" ),
-      MBEDTLS_OID_AT_STATE, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "stateOrProvinceName" ),
-      MBEDTLS_OID_AT_STATE, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "emailAddress" ),
-      MBEDTLS_OID_PKCS9_EMAIL, MBEDTLS_ASN1_IA5_STRING },
-    { ADD_STRLEN( "serialNumber" ),
-      MBEDTLS_OID_AT_SERIAL_NUMBER, MBEDTLS_ASN1_PRINTABLE_STRING },
-    { ADD_STRLEN( "postalAddress" ),
-      MBEDTLS_OID_AT_POSTAL_ADDRESS, MBEDTLS_ASN1_PRINTABLE_STRING },
-    { ADD_STRLEN( "postalCode" ),
-      MBEDTLS_OID_AT_POSTAL_CODE, MBEDTLS_ASN1_PRINTABLE_STRING },
-    { ADD_STRLEN( "dnQualifier" ),
-      MBEDTLS_OID_AT_DN_QUALIFIER, MBEDTLS_ASN1_PRINTABLE_STRING },
-    { ADD_STRLEN( "title" ),
-      MBEDTLS_OID_AT_TITLE, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "surName" ),
-      MBEDTLS_OID_AT_SUR_NAME, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "SN" ),
-      MBEDTLS_OID_AT_SUR_NAME, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "givenName" ),
-      MBEDTLS_OID_AT_GIVEN_NAME, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "GN" ),
-      MBEDTLS_OID_AT_GIVEN_NAME, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "initials" ),
-      MBEDTLS_OID_AT_INITIALS, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "pseudonym" ),
-      MBEDTLS_OID_AT_PSEUDONYM, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "generationQualifier" ),
-      MBEDTLS_OID_AT_GENERATION_QUALIFIER, MBEDTLS_ASN1_UTF8_STRING },
-    { ADD_STRLEN( "domainComponent" ),
-      MBEDTLS_OID_DOMAIN_COMPONENT, MBEDTLS_ASN1_IA5_STRING },
-    { ADD_STRLEN( "DC" ),
-      MBEDTLS_OID_DOMAIN_COMPONENT,   MBEDTLS_ASN1_IA5_STRING },
-    { NULL, 0, NULL, MBEDTLS_ASN1_NULL }
-};
-
-static const x509_attr_descriptor_t *x509_attr_descr_from_name( const char *name, size_t name_len )
-{
-    const x509_attr_descriptor_t *cur;
-
-    for( cur = x509_attrs; cur->name != NULL; cur++ )
-        if( cur->name_len == name_len &&
-            strncmp( cur->name, name, name_len ) == 0 )
-            break;
-
-    if ( cur->name == NULL )
-        return( NULL );
-
-    return( cur );
-}
-
-int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name )
-{
-    int ret = 0;
-    const char *s = name, *c = s;
-    const char *end = s + strlen( s );
-    const char *oid = NULL;
-    const x509_attr_descriptor_t* attr_descr = NULL;
-    int in_tag = 1;
-    char data[MBEDTLS_X509_MAX_DN_NAME_SIZE];
-    char *d = data;
-
-    /* Clear existing chain if present */
-    mbedtls_asn1_free_named_data_list( head );
-
-    while( c <= end )
-    {
-        if( in_tag && *c == '=' )
-        {
-            if( ( attr_descr = x509_attr_descr_from_name( s, c - s ) ) == NULL )
-            {
-                ret = MBEDTLS_ERR_X509_UNKNOWN_OID;
-                goto exit;
-            }
-
-            oid = attr_descr->oid;
-            s = c + 1;
-            in_tag = 0;
-            d = data;
-        }
-
-        if( !in_tag && *c == '\\' && c != end )
-        {
-            c++;
-
-            /* Check for valid escaped characters */
-            if( c == end || *c != ',' )
-            {
-                ret = MBEDTLS_ERR_X509_INVALID_NAME;
-                goto exit;
-            }
-        }
-        else if( !in_tag && ( *c == ',' || c == end ) )
-        {
-            mbedtls_asn1_named_data* cur =
-                mbedtls_asn1_store_named_data( head, oid, strlen( oid ),
-                                               (unsigned char *) data,
-                                               d - data );
-
-            if(cur == NULL )
-            {
-                return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-            }
-
-            // set tagType
-            cur->val.tag = attr_descr->default_tag;
-
-            while( c < end && *(c + 1) == ' ' )
-                c++;
-
-            s = c + 1;
-            in_tag = 1;
-        }
-
-        if( !in_tag && s != c + 1 )
-        {
-            *(d++) = *c;
-
-            if( d - data == MBEDTLS_X509_MAX_DN_NAME_SIZE )
-            {
-                ret = MBEDTLS_ERR_X509_INVALID_NAME;
-                goto exit;
-            }
-        }
-
-        c++;
-    }
-
-exit:
-
-    return( ret );
-}
-
-/* The first byte of the value in the mbedtls_asn1_named_data structure is reserved
- * to store the critical boolean for us
- */
-int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
-                        int critical, const unsigned char *val, size_t val_len )
-{
-    mbedtls_asn1_named_data *cur;
-
-    if( ( cur = mbedtls_asn1_store_named_data( head, oid, oid_len,
-                                       NULL, val_len + 1 ) ) == NULL )
-    {
-        return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-    }
-
-    cur->val.p[0] = critical;
-    memcpy( cur->val.p + 1, val, val_len );
-
-    return( 0 );
-}
-
-/*
- *  RelativeDistinguishedName ::=
- *    SET OF AttributeTypeAndValue
- *
- *  AttributeTypeAndValue ::= SEQUENCE {
- *    type     AttributeType,
- *    value    AttributeValue }
- *
- *  AttributeType ::= OBJECT IDENTIFIER
- *
- *  AttributeValue ::= ANY DEFINED BY AttributeType
- */
-static int x509_write_name( unsigned char **p, unsigned char *start, mbedtls_asn1_named_data* cur_name)
-{
-    int ret;
-    size_t len = 0;
-    const char *oid             = (const char*)cur_name->oid.p;
-    size_t oid_len              = cur_name->oid.len;
-    const unsigned char *name   = cur_name->val.p;
-    size_t name_len             = cur_name->val.len;
-
-    // Write correct string tag and value
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tagged_string( p, start,
-                                                       cur_name->val.tag,
-                                                       (const char *) name,
-                                                       name_len ) );
-    // Write OID
-    //
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid,
-                                                       oid_len ) );
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
-                                                    MBEDTLS_ASN1_CONSTRUCTED |
-                                                    MBEDTLS_ASN1_SEQUENCE ) );
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
-                                                 MBEDTLS_ASN1_CONSTRUCTED |
-                                                 MBEDTLS_ASN1_SET ) );
-
-    return( (int) len );
-}
-
-int mbedtls_x509_write_names( unsigned char **p, unsigned char *start,
-                              mbedtls_asn1_named_data *first )
-{
-    int ret;
-    size_t len = 0;
-    mbedtls_asn1_named_data *cur = first;
-
-    while( cur != NULL )
-    {
-        MBEDTLS_ASN1_CHK_ADD( len, x509_write_name( p, start, cur ) );
-        cur = cur->next;
-    }
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
-                                                 MBEDTLS_ASN1_SEQUENCE ) );
-
-    return( (int) len );
-}
-
-int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start,
-                    const char *oid, size_t oid_len,
-                    unsigned char *sig, size_t size )
-{
-    int ret;
-    size_t len = 0;
-
-    if( *p < start || (size_t)( *p - start ) < size )
-        return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
-
-    len = size;
-    (*p) -= len;
-    memcpy( *p, sig, len );
-
-    if( *p - start < 1 )
-        return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
-
-    *--(*p) = 0;
-    len += 1;
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BIT_STRING ) );
-
-    // Write OID
-    //
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( p, start, oid,
-                                                        oid_len, 0 ) );
-
-    return( (int) len );
-}
-
-static int x509_write_extension( unsigned char **p, unsigned char *start,
-                                 mbedtls_asn1_named_data *ext )
-{
-    int ret;
-    size_t len = 0;
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->val.p + 1,
-                                              ext->val.len - 1 ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->val.len - 1 ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OCTET_STRING ) );
-
-    if( ext->val.p[0] != 0 )
-    {
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( p, start, 1 ) );
-    }
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->oid.p,
-                                              ext->oid.len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->oid.len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OID ) );
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
-                                                 MBEDTLS_ASN1_SEQUENCE ) );
-
-    return( (int) len );
-}
-
-/*
- * Extension  ::=  SEQUENCE  {
- *     extnID      OBJECT IDENTIFIER,
- *     critical    BOOLEAN DEFAULT FALSE,
- *     extnValue   OCTET STRING
- *                 -- contains the DER encoding of an ASN.1 value
- *                 -- corresponding to the extension type identified
- *                 -- by extnID
- *     }
- */
-int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start,
-                           mbedtls_asn1_named_data *first )
-{
-    int ret;
-    size_t len = 0;
-    mbedtls_asn1_named_data *cur_ext = first;
-
-    while( cur_ext != NULL )
-    {
-        MBEDTLS_ASN1_CHK_ADD( len, x509_write_extension( p, start, cur_ext ) );
-        cur_ext = cur_ext->next;
-    }
-
-    return( (int) len );
-}
-
-#endif /* MBEDTLS_X509_CREATE_C */
diff --git a/library/x509_crl.c b/library/x509_crl.c
deleted file mode 100644
index 8450f87..0000000
--- a/library/x509_crl.c
+++ /dev/null
@@ -1,773 +0,0 @@
-/*
- *  X.509 Certidicate Revocation List (CRL) parsing
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- *  The ITU-T X.509 standard defines a certificate format for PKI.
- *
- *  http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
- *  http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
- *  http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
- *
- *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
- *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_X509_CRL_PARSE_C)
-
-#include "mbedtls/x509_crl.h"
-#include "mbedtls/oid.h"
-#include "mbedtls/platform_util.h"
-
-#include <string.h>
-
-#if defined(MBEDTLS_PEM_PARSE_C)
-#include "mbedtls/pem.h"
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#include <stdio.h>
-#define mbedtls_free       free
-#define mbedtls_calloc    calloc
-#define mbedtls_snprintf   snprintf
-#endif
-
-#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
-#include <windows.h>
-#else
-#include <time.h>
-#endif
-
-#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32)
-#include <stdio.h>
-#endif
-
-/*
- *  Version  ::=  INTEGER  {  v1(0), v2(1)  }
- */
-static int x509_crl_get_version( unsigned char **p,
-                             const unsigned char *end,
-                             int *ver )
-{
-    int ret;
-
-    if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-        {
-            *ver = 0;
-            return( 0 );
-        }
-
-        return( MBEDTLS_ERR_X509_INVALID_VERSION + ret );
-    }
-
-    return( 0 );
-}
-
-/*
- * X.509 CRL v2 extensions
- *
- * We currently don't parse any extension's content, but we do check that the
- * list of extensions is well-formed and abort on critical extensions (that
- * are unsupported as we don't support any extension so far)
- */
-static int x509_get_crl_ext( unsigned char **p,
-                             const unsigned char *end,
-                             mbedtls_x509_buf *ext )
-{
-    int ret;
-
-    /*
-     * crlExtensions           [0]  EXPLICIT Extensions OPTIONAL
-     *                              -- if present, version MUST be v2
-     */
-    if( ( ret = mbedtls_x509_get_ext( p, end, ext, 0 ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-            return( 0 );
-
-        return( ret );
-    }
-
-    while( *p < end )
-    {
-        /*
-         * Extension  ::=  SEQUENCE  {
-         *      extnID      OBJECT IDENTIFIER,
-         *      critical    BOOLEAN DEFAULT FALSE,
-         *      extnValue   OCTET STRING  }
-         */
-        int is_critical = 0;
-        const unsigned char *end_ext_data;
-        size_t len;
-
-        /* Get enclosing sequence tag */
-        if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
-                MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-        end_ext_data = *p + len;
-
-        /* Get OID (currently ignored) */
-        if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len,
-                                          MBEDTLS_ASN1_OID ) ) != 0 )
-        {
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-        }
-        *p += len;
-
-        /* Get optional critical */
-        if( ( ret = mbedtls_asn1_get_bool( p, end_ext_data,
-                                           &is_critical ) ) != 0 &&
-            ( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) )
-        {
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-        }
-
-        /* Data should be octet string type */
-        if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len,
-                MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-        /* Ignore data so far and just check its length */
-        *p += len;
-        if( *p != end_ext_data )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                    MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-        /* Abort on (unsupported) critical extensions */
-        if( is_critical )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                    MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
-    }
-
-    if( *p != end )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    return( 0 );
-}
-
-/*
- * X.509 CRL v2 entry extensions (no extensions parsed yet.)
- */
-static int x509_get_crl_entry_ext( unsigned char **p,
-                             const unsigned char *end,
-                             mbedtls_x509_buf *ext )
-{
-    int ret;
-    size_t len = 0;
-
-    /* OPTIONAL */
-    if( end <= *p )
-        return( 0 );
-
-    ext->tag = **p;
-    ext->p = *p;
-
-    /*
-     * Get CRL-entry extension sequence header
-     * crlEntryExtensions      Extensions OPTIONAL  -- if present, MUST be v2
-     */
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &ext->len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-        {
-            ext->p = NULL;
-            return( 0 );
-        }
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-    }
-
-    end = *p + ext->len;
-
-    if( end != *p + ext->len )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    while( *p < end )
-    {
-        if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
-                MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-        *p += len;
-    }
-
-    if( *p != end )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    return( 0 );
-}
-
-/*
- * X.509 CRL Entries
- */
-static int x509_get_entries( unsigned char **p,
-                             const unsigned char *end,
-                             mbedtls_x509_crl_entry *entry )
-{
-    int ret;
-    size_t entry_len;
-    mbedtls_x509_crl_entry *cur_entry = entry;
-
-    if( *p == end )
-        return( 0 );
-
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &entry_len,
-            MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-            return( 0 );
-
-        return( ret );
-    }
-
-    end = *p + entry_len;
-
-    while( *p < end )
-    {
-        size_t len2;
-        const unsigned char *end2;
-
-        if( ( ret = mbedtls_asn1_get_tag( p, end, &len2,
-                MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 )
-        {
-            return( ret );
-        }
-
-        cur_entry->raw.tag = **p;
-        cur_entry->raw.p = *p;
-        cur_entry->raw.len = len2;
-        end2 = *p + len2;
-
-        if( ( ret = mbedtls_x509_get_serial( p, end2, &cur_entry->serial ) ) != 0 )
-            return( ret );
-
-        if( ( ret = mbedtls_x509_get_time( p, end2,
-                                   &cur_entry->revocation_date ) ) != 0 )
-            return( ret );
-
-        if( ( ret = x509_get_crl_entry_ext( p, end2,
-                                            &cur_entry->entry_ext ) ) != 0 )
-            return( ret );
-
-        if( *p < end )
-        {
-            cur_entry->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl_entry ) );
-
-            if( cur_entry->next == NULL )
-                return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-
-            cur_entry = cur_entry->next;
-        }
-    }
-
-    return( 0 );
-}
-
-/*
- * Parse one  CRLs in DER format and append it to the chained list
- */
-int mbedtls_x509_crl_parse_der( mbedtls_x509_crl *chain,
-                        const unsigned char *buf, size_t buflen )
-{
-    int ret;
-    size_t len;
-    unsigned char *p = NULL, *end = NULL;
-    mbedtls_x509_buf sig_params1, sig_params2, sig_oid2;
-    mbedtls_x509_crl *crl = chain;
-
-    /*
-     * Check for valid input
-     */
-    if( crl == NULL || buf == NULL )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    memset( &sig_params1, 0, sizeof( mbedtls_x509_buf ) );
-    memset( &sig_params2, 0, sizeof( mbedtls_x509_buf ) );
-    memset( &sig_oid2, 0, sizeof( mbedtls_x509_buf ) );
-
-    /*
-     * Add new CRL on the end of the chain if needed.
-     */
-    while( crl->version != 0 && crl->next != NULL )
-        crl = crl->next;
-
-    if( crl->version != 0 && crl->next == NULL )
-    {
-        crl->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl ) );
-
-        if( crl->next == NULL )
-        {
-            mbedtls_x509_crl_free( crl );
-            return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-        }
-
-        mbedtls_x509_crl_init( crl->next );
-        crl = crl->next;
-    }
-
-    /*
-     * Copy raw DER-encoded CRL
-     */
-    if( buflen == 0 )
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT );
-
-    p = mbedtls_calloc( 1, buflen );
-    if( p == NULL )
-        return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-
-    memcpy( p, buf, buflen );
-
-    crl->raw.p = p;
-    crl->raw.len = buflen;
-
-    end = p + buflen;
-
-    /*
-     * CertificateList  ::=  SEQUENCE  {
-     *      tbsCertList          TBSCertList,
-     *      signatureAlgorithm   AlgorithmIdentifier,
-     *      signatureValue       BIT STRING  }
-     */
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT );
-    }
-
-    if( len != (size_t) ( end - p ) )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-    }
-
-    /*
-     * TBSCertList  ::=  SEQUENCE  {
-     */
-    crl->tbs.p = p;
-
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
-    }
-
-    end = p + len;
-    crl->tbs.len = end - crl->tbs.p;
-
-    /*
-     * Version  ::=  INTEGER  OPTIONAL {  v1(0), v2(1)  }
-     *               -- if present, MUST be v2
-     *
-     * signature            AlgorithmIdentifier
-     */
-    if( ( ret = x509_crl_get_version( &p, end, &crl->version ) ) != 0 ||
-        ( ret = mbedtls_x509_get_alg( &p, end, &crl->sig_oid, &sig_params1 ) ) != 0 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( ret );
-    }
-
-    if( crl->version < 0 || crl->version > 1 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( MBEDTLS_ERR_X509_UNKNOWN_VERSION );
-    }
-
-    crl->version++;
-
-    if( ( ret = mbedtls_x509_get_sig_alg( &crl->sig_oid, &sig_params1,
-                                  &crl->sig_md, &crl->sig_pk,
-                                  &crl->sig_opts ) ) != 0 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG );
-    }
-
-    /*
-     * issuer               Name
-     */
-    crl->issuer_raw.p = p;
-
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
-    }
-
-    if( ( ret = mbedtls_x509_get_name( &p, p + len, &crl->issuer ) ) != 0 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( ret );
-    }
-
-    crl->issuer_raw.len = p - crl->issuer_raw.p;
-
-    /*
-     * thisUpdate          Time
-     * nextUpdate          Time OPTIONAL
-     */
-    if( ( ret = mbedtls_x509_get_time( &p, end, &crl->this_update ) ) != 0 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( ret );
-    }
-
-    if( ( ret = mbedtls_x509_get_time( &p, end, &crl->next_update ) ) != 0 )
-    {
-        if( ret != ( MBEDTLS_ERR_X509_INVALID_DATE +
-                        MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) &&
-            ret != ( MBEDTLS_ERR_X509_INVALID_DATE +
-                        MBEDTLS_ERR_ASN1_OUT_OF_DATA ) )
-        {
-            mbedtls_x509_crl_free( crl );
-            return( ret );
-        }
-    }
-
-    /*
-     * revokedCertificates    SEQUENCE OF SEQUENCE   {
-     *      userCertificate        CertificateSerialNumber,
-     *      revocationDate         Time,
-     *      crlEntryExtensions     Extensions OPTIONAL
-     *                                   -- if present, MUST be v2
-     *                        } OPTIONAL
-     */
-    if( ( ret = x509_get_entries( &p, end, &crl->entry ) ) != 0 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( ret );
-    }
-
-    /*
-     * crlExtensions          EXPLICIT Extensions OPTIONAL
-     *                              -- if present, MUST be v2
-     */
-    if( crl->version == 2 )
-    {
-        ret = x509_get_crl_ext( &p, end, &crl->crl_ext );
-
-        if( ret != 0 )
-        {
-            mbedtls_x509_crl_free( crl );
-            return( ret );
-        }
-    }
-
-    if( p != end )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-    }
-
-    end = crl->raw.p + crl->raw.len;
-
-    /*
-     *  signatureAlgorithm   AlgorithmIdentifier,
-     *  signatureValue       BIT STRING
-     */
-    if( ( ret = mbedtls_x509_get_alg( &p, end, &sig_oid2, &sig_params2 ) ) != 0 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( ret );
-    }
-
-    if( crl->sig_oid.len != sig_oid2.len ||
-        memcmp( crl->sig_oid.p, sig_oid2.p, crl->sig_oid.len ) != 0 ||
-        sig_params1.len != sig_params2.len ||
-        ( sig_params1.len != 0 &&
-          memcmp( sig_params1.p, sig_params2.p, sig_params1.len ) != 0 ) )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( MBEDTLS_ERR_X509_SIG_MISMATCH );
-    }
-
-    if( ( ret = mbedtls_x509_get_sig( &p, end, &crl->sig ) ) != 0 )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( ret );
-    }
-
-    if( p != end )
-    {
-        mbedtls_x509_crl_free( crl );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-    }
-
-    return( 0 );
-}
-
-/*
- * Parse one or more CRLs and add them to the chained list
- */
-int mbedtls_x509_crl_parse( mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen )
-{
-#if defined(MBEDTLS_PEM_PARSE_C)
-    int ret;
-    size_t use_len;
-    mbedtls_pem_context pem;
-    int is_pem = 0;
-
-    if( chain == NULL || buf == NULL )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    do
-    {
-        mbedtls_pem_init( &pem );
-
-        // Avoid calling mbedtls_pem_read_buffer() on non-null-terminated
-        // string
-        if( buflen == 0 || buf[buflen - 1] != '\0' )
-            ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
-        else
-            ret = mbedtls_pem_read_buffer( &pem,
-                                           "-----BEGIN X509 CRL-----",
-                                           "-----END X509 CRL-----",
-                                            buf, NULL, 0, &use_len );
-
-        if( ret == 0 )
-        {
-            /*
-             * Was PEM encoded
-             */
-            is_pem = 1;
-
-            buflen -= use_len;
-            buf += use_len;
-
-            if( ( ret = mbedtls_x509_crl_parse_der( chain,
-                                            pem.buf, pem.buflen ) ) != 0 )
-            {
-                mbedtls_pem_free( &pem );
-                return( ret );
-            }
-        }
-        else if( is_pem )
-        {
-            mbedtls_pem_free( &pem );
-            return( ret );
-        }
-
-        mbedtls_pem_free( &pem );
-    }
-    /* In the PEM case, buflen is 1 at the end, for the terminated NULL byte.
-     * And a valid CRL cannot be less than 1 byte anyway. */
-    while( is_pem && buflen > 1 );
-
-    if( is_pem )
-        return( 0 );
-    else
-#endif /* MBEDTLS_PEM_PARSE_C */
-        return( mbedtls_x509_crl_parse_der( chain, buf, buflen ) );
-}
-
-#if defined(MBEDTLS_FS_IO)
-/*
- * Load one or more CRLs and add them to the chained list
- */
-int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path )
-{
-    int ret;
-    size_t n;
-    unsigned char *buf;
-
-    if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
-        return( ret );
-
-    ret = mbedtls_x509_crl_parse( chain, buf, n );
-
-    mbedtls_platform_zeroize( buf, n );
-    mbedtls_free( buf );
-
-    return( ret );
-}
-#endif /* MBEDTLS_FS_IO */
-
-/*
- * Return an informational string about the certificate.
- */
-#define BEFORE_COLON    14
-#define BC              "14"
-/*
- * Return an informational string about the CRL.
- */
-int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix,
-                   const mbedtls_x509_crl *crl )
-{
-    int ret;
-    size_t n;
-    char *p;
-    const mbedtls_x509_crl_entry *entry;
-
-    p = buf;
-    n = size;
-
-    ret = mbedtls_snprintf( p, n, "%sCRL version   : %d",
-                               prefix, crl->version );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n%sissuer name   : ", prefix );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-    ret = mbedtls_x509_dn_gets( p, n, &crl->issuer );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n%sthis update   : " \
-                   "%04d-%02d-%02d %02d:%02d:%02d", prefix,
-                   crl->this_update.year, crl->this_update.mon,
-                   crl->this_update.day,  crl->this_update.hour,
-                   crl->this_update.min,  crl->this_update.sec );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n%snext update   : " \
-                   "%04d-%02d-%02d %02d:%02d:%02d", prefix,
-                   crl->next_update.year, crl->next_update.mon,
-                   crl->next_update.day,  crl->next_update.hour,
-                   crl->next_update.min,  crl->next_update.sec );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    entry = &crl->entry;
-
-    ret = mbedtls_snprintf( p, n, "\n%sRevoked certificates:",
-                               prefix );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    while( entry != NULL && entry->raw.len != 0 )
-    {
-        ret = mbedtls_snprintf( p, n, "\n%sserial number: ",
-                               prefix );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        ret = mbedtls_x509_serial_gets( p, n, &entry->serial );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        ret = mbedtls_snprintf( p, n, " revocation date: " \
-                   "%04d-%02d-%02d %02d:%02d:%02d",
-                   entry->revocation_date.year, entry->revocation_date.mon,
-                   entry->revocation_date.day,  entry->revocation_date.hour,
-                   entry->revocation_date.min,  entry->revocation_date.sec );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        entry = entry->next;
-    }
-
-    ret = mbedtls_snprintf( p, n, "\n%ssigned using  : ", prefix );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_x509_sig_alg_gets( p, n, &crl->sig_oid, crl->sig_pk, crl->sig_md,
-                             crl->sig_opts );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n" );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    return( (int) ( size - n ) );
-}
-
-/*
- * Initialize a CRL chain
- */
-void mbedtls_x509_crl_init( mbedtls_x509_crl *crl )
-{
-    memset( crl, 0, sizeof(mbedtls_x509_crl) );
-}
-
-/*
- * Unallocate all CRL data
- */
-void mbedtls_x509_crl_free( mbedtls_x509_crl *crl )
-{
-    mbedtls_x509_crl *crl_cur = crl;
-    mbedtls_x509_crl *crl_prv;
-    mbedtls_x509_name *name_cur;
-    mbedtls_x509_name *name_prv;
-    mbedtls_x509_crl_entry *entry_cur;
-    mbedtls_x509_crl_entry *entry_prv;
-
-    if( crl == NULL )
-        return;
-
-    do
-    {
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
-        mbedtls_free( crl_cur->sig_opts );
-#endif
-
-        name_cur = crl_cur->issuer.next;
-        while( name_cur != NULL )
-        {
-            name_prv = name_cur;
-            name_cur = name_cur->next;
-            mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) );
-            mbedtls_free( name_prv );
-        }
-
-        entry_cur = crl_cur->entry.next;
-        while( entry_cur != NULL )
-        {
-            entry_prv = entry_cur;
-            entry_cur = entry_cur->next;
-            mbedtls_platform_zeroize( entry_prv,
-                                      sizeof( mbedtls_x509_crl_entry ) );
-            mbedtls_free( entry_prv );
-        }
-
-        if( crl_cur->raw.p != NULL )
-        {
-            mbedtls_platform_zeroize( crl_cur->raw.p, crl_cur->raw.len );
-            mbedtls_free( crl_cur->raw.p );
-        }
-
-        crl_cur = crl_cur->next;
-    }
-    while( crl_cur != NULL );
-
-    crl_cur = crl;
-    do
-    {
-        crl_prv = crl_cur;
-        crl_cur = crl_cur->next;
-
-        mbedtls_platform_zeroize( crl_prv, sizeof( mbedtls_x509_crl ) );
-        if( crl_prv != crl )
-            mbedtls_free( crl_prv );
-    }
-    while( crl_cur != NULL );
-}
-
-#endif /* MBEDTLS_X509_CRL_PARSE_C */
diff --git a/library/x509_crt.c b/library/x509_crt.c
deleted file mode 100644
index 605d8ef..0000000
--- a/library/x509_crt.c
+++ /dev/null
@@ -1,2879 +0,0 @@
-/*
- *  X.509 certificate parsing and verification
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- *  The ITU-T X.509 standard defines a certificate format for PKI.
- *
- *  http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
- *  http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
- *  http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
- *
- *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
- *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
- *
- *  [SIRO] https://cabforum.org/wp-content/uploads/Chunghwatelecom201503cabforumV4.pdf
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-
-#include "mbedtls/x509_crt.h"
-#include "mbedtls/oid.h"
-#include "mbedtls/platform_util.h"
-
-#include <string.h>
-
-#if defined(MBEDTLS_PEM_PARSE_C)
-#include "mbedtls/pem.h"
-#endif
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "psa/crypto.h"
-#include "mbedtls/psa_util.h"
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_free       free
-#define mbedtls_calloc    calloc
-#define mbedtls_snprintf   snprintf
-#endif
-
-#if defined(MBEDTLS_THREADING_C)
-#include "mbedtls/threading.h"
-#endif
-
-#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
-#include <windows.h>
-#else
-#include <time.h>
-#endif
-
-#if defined(MBEDTLS_FS_IO)
-#include <stdio.h>
-#if !defined(_WIN32) || defined(EFIX64) || defined(EFI32)
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#endif /* !_WIN32 || EFIX64 || EFI32 */
-#endif
-
-/*
- * Item in a verification chain: cert and flags for it
- */
-typedef struct {
-    mbedtls_x509_crt *crt;
-    uint32_t flags;
-} x509_crt_verify_chain_item;
-
-/*
- * Max size of verification chain: end-entity + intermediates + trusted root
- */
-#define X509_MAX_VERIFY_CHAIN_SIZE    ( MBEDTLS_X509_MAX_INTERMEDIATE_CA + 2 )
-
-/*
- * Default profile
- */
-const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_default =
-{
-#if defined(MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES)
-    /* Allow SHA-1 (weak, but still safe in controlled environments) */
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA1 ) |
-#endif
-    /* Only SHA-2 hashes */
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA224 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA512 ),
-    0xFFFFFFF, /* Any PK alg    */
-    0xFFFFFFF, /* Any curve     */
-    2048,
-};
-
-/*
- * Next-default profile
- */
-const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_next =
-{
-    /* Hashes from SHA-256 and above */
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA512 ),
-    0xFFFFFFF, /* Any PK alg    */
-#if defined(MBEDTLS_ECP_C)
-    /* Curves at or above 128-bit security level */
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256R1 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP384R1 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP521R1 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP256R1 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP384R1 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP512R1 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256K1 ),
-#else
-    0,
-#endif
-    2048,
-};
-
-/*
- * NSA Suite B Profile
- */
-const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_suiteb =
-{
-    /* Only SHA-256 and 384 */
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ),
-    /* Only ECDSA */
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_PK_ECDSA ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_PK_ECKEY ),
-#if defined(MBEDTLS_ECP_C)
-    /* Only NIST P-256 and P-384 */
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256R1 ) |
-    MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP384R1 ),
-#else
-    0,
-#endif
-    0,
-};
-
-/*
- * Check md_alg against profile
- * Return 0 if md_alg is acceptable for this profile, -1 otherwise
- */
-static int x509_profile_check_md_alg( const mbedtls_x509_crt_profile *profile,
-                                      mbedtls_md_type_t md_alg )
-{
-    if( md_alg == MBEDTLS_MD_NONE )
-        return( -1 );
-
-    if( ( profile->allowed_mds & MBEDTLS_X509_ID_FLAG( md_alg ) ) != 0 )
-        return( 0 );
-
-    return( -1 );
-}
-
-/*
- * Check pk_alg against profile
- * Return 0 if pk_alg is acceptable for this profile, -1 otherwise
- */
-static int x509_profile_check_pk_alg( const mbedtls_x509_crt_profile *profile,
-                                      mbedtls_pk_type_t pk_alg )
-{
-    if( pk_alg == MBEDTLS_PK_NONE )
-        return( -1 );
-
-    if( ( profile->allowed_pks & MBEDTLS_X509_ID_FLAG( pk_alg ) ) != 0 )
-        return( 0 );
-
-    return( -1 );
-}
-
-/*
- * Check key against profile
- * Return 0 if pk is acceptable for this profile, -1 otherwise
- */
-static int x509_profile_check_key( const mbedtls_x509_crt_profile *profile,
-                                   const mbedtls_pk_context *pk )
-{
-    const mbedtls_pk_type_t pk_alg = mbedtls_pk_get_type( pk );
-
-#if defined(MBEDTLS_RSA_C)
-    if( pk_alg == MBEDTLS_PK_RSA || pk_alg == MBEDTLS_PK_RSASSA_PSS )
-    {
-        if( mbedtls_pk_get_bitlen( pk ) >= profile->rsa_min_bitlen )
-            return( 0 );
-
-        return( -1 );
-    }
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-    if( pk_alg == MBEDTLS_PK_ECDSA ||
-        pk_alg == MBEDTLS_PK_ECKEY ||
-        pk_alg == MBEDTLS_PK_ECKEY_DH )
-    {
-        const mbedtls_ecp_group_id gid = mbedtls_pk_ec( *pk )->grp.id;
-
-        if( gid == MBEDTLS_ECP_DP_NONE )
-            return( -1 );
-
-        if( ( profile->allowed_curves & MBEDTLS_X509_ID_FLAG( gid ) ) != 0 )
-            return( 0 );
-
-        return( -1 );
-    }
-#endif
-
-    return( -1 );
-}
-
-/*
- * Like memcmp, but case-insensitive and always returns -1 if different
- */
-static int x509_memcasecmp( const void *s1, const void *s2, size_t len )
-{
-    size_t i;
-    unsigned char diff;
-    const unsigned char *n1 = s1, *n2 = s2;
-
-    for( i = 0; i < len; i++ )
-    {
-        diff = n1[i] ^ n2[i];
-
-        if( diff == 0 )
-            continue;
-
-        if( diff == 32 &&
-            ( ( n1[i] >= 'a' && n1[i] <= 'z' ) ||
-              ( n1[i] >= 'A' && n1[i] <= 'Z' ) ) )
-        {
-            continue;
-        }
-
-        return( -1 );
-    }
-
-    return( 0 );
-}
-
-/*
- * Return 0 if name matches wildcard, -1 otherwise
- */
-static int x509_check_wildcard( const char *cn, const mbedtls_x509_buf *name )
-{
-    size_t i;
-    size_t cn_idx = 0, cn_len = strlen( cn );
-
-    /* We can't have a match if there is no wildcard to match */
-    if( name->len < 3 || name->p[0] != '*' || name->p[1] != '.' )
-        return( -1 );
-
-    for( i = 0; i < cn_len; ++i )
-    {
-        if( cn[i] == '.' )
-        {
-            cn_idx = i;
-            break;
-        }
-    }
-
-    if( cn_idx == 0 )
-        return( -1 );
-
-    if( cn_len - cn_idx == name->len - 1 &&
-        x509_memcasecmp( name->p + 1, cn + cn_idx, name->len - 1 ) == 0 )
-    {
-        return( 0 );
-    }
-
-    return( -1 );
-}
-
-/*
- * Compare two X.509 strings, case-insensitive, and allowing for some encoding
- * variations (but not all).
- *
- * Return 0 if equal, -1 otherwise.
- */
-static int x509_string_cmp( const mbedtls_x509_buf *a, const mbedtls_x509_buf *b )
-{
-    if( a->tag == b->tag &&
-        a->len == b->len &&
-        memcmp( a->p, b->p, b->len ) == 0 )
-    {
-        return( 0 );
-    }
-
-    if( ( a->tag == MBEDTLS_ASN1_UTF8_STRING || a->tag == MBEDTLS_ASN1_PRINTABLE_STRING ) &&
-        ( b->tag == MBEDTLS_ASN1_UTF8_STRING || b->tag == MBEDTLS_ASN1_PRINTABLE_STRING ) &&
-        a->len == b->len &&
-        x509_memcasecmp( a->p, b->p, b->len ) == 0 )
-    {
-        return( 0 );
-    }
-
-    return( -1 );
-}
-
-/*
- * Compare two X.509 Names (aka rdnSequence).
- *
- * See RFC 5280 section 7.1, though we don't implement the whole algorithm:
- * we sometimes return unequal when the full algorithm would return equal,
- * but never the other way. (In particular, we don't do Unicode normalisation
- * or space folding.)
- *
- * Return 0 if equal, -1 otherwise.
- */
-static int x509_name_cmp( const mbedtls_x509_name *a, const mbedtls_x509_name *b )
-{
-    /* Avoid recursion, it might not be optimised by the compiler */
-    while( a != NULL || b != NULL )
-    {
-        if( a == NULL || b == NULL )
-            return( -1 );
-
-        /* type */
-        if( a->oid.tag != b->oid.tag ||
-            a->oid.len != b->oid.len ||
-            memcmp( a->oid.p, b->oid.p, b->oid.len ) != 0 )
-        {
-            return( -1 );
-        }
-
-        /* value */
-        if( x509_string_cmp( &a->val, &b->val ) != 0 )
-            return( -1 );
-
-        /* structure of the list of sets */
-        if( a->next_merged != b->next_merged )
-            return( -1 );
-
-        a = a->next;
-        b = b->next;
-    }
-
-    /* a == NULL == b */
-    return( 0 );
-}
-
-/*
- * Reset (init or clear) a verify_chain
- */
-static void x509_crt_verify_chain_reset(
-    mbedtls_x509_crt_verify_chain *ver_chain )
-{
-    size_t i;
-
-    for( i = 0; i < MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE; i++ )
-    {
-        ver_chain->items[i].crt = NULL;
-        ver_chain->items[i].flags = (uint32_t) -1;
-    }
-
-    ver_chain->len = 0;
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    ver_chain->trust_ca_cb_result = NULL;
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-}
-
-/*
- *  Version  ::=  INTEGER  {  v1(0), v2(1), v3(2)  }
- */
-static int x509_get_version( unsigned char **p,
-                             const unsigned char *end,
-                             int *ver )
-{
-    int ret;
-    size_t len;
-
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
-            MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-        {
-            *ver = 0;
-            return( 0 );
-        }
-
-        return( ret );
-    }
-
-    end = *p + len;
-
-    if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_VERSION + ret );
-
-    if( *p != end )
-        return( MBEDTLS_ERR_X509_INVALID_VERSION +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    return( 0 );
-}
-
-/*
- *  Validity ::= SEQUENCE {
- *       notBefore      Time,
- *       notAfter       Time }
- */
-static int x509_get_dates( unsigned char **p,
-                           const unsigned char *end,
-                           mbedtls_x509_time *from,
-                           mbedtls_x509_time *to )
-{
-    int ret;
-    size_t len;
-
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_DATE + ret );
-
-    end = *p + len;
-
-    if( ( ret = mbedtls_x509_get_time( p, end, from ) ) != 0 )
-        return( ret );
-
-    if( ( ret = mbedtls_x509_get_time( p, end, to ) ) != 0 )
-        return( ret );
-
-    if( *p != end )
-        return( MBEDTLS_ERR_X509_INVALID_DATE +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    return( 0 );
-}
-
-/*
- * X.509 v2/v3 unique identifier (not parsed)
- */
-static int x509_get_uid( unsigned char **p,
-                         const unsigned char *end,
-                         mbedtls_x509_buf *uid, int n )
-{
-    int ret;
-
-    if( *p == end )
-        return( 0 );
-
-    uid->tag = **p;
-
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &uid->len,
-            MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | n ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-            return( 0 );
-
-        return( ret );
-    }
-
-    uid->p = *p;
-    *p += uid->len;
-
-    return( 0 );
-}
-
-static int x509_get_basic_constraints( unsigned char **p,
-                                       const unsigned char *end,
-                                       int *ca_istrue,
-                                       int *max_pathlen )
-{
-    int ret;
-    size_t len;
-
-    /*
-     * BasicConstraints ::= SEQUENCE {
-     *      cA                      BOOLEAN DEFAULT FALSE,
-     *      pathLenConstraint       INTEGER (0..MAX) OPTIONAL }
-     */
-    *ca_istrue = 0; /* DEFAULT FALSE */
-    *max_pathlen = 0; /* endless */
-
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-    if( *p == end )
-        return( 0 );
-
-    if( ( ret = mbedtls_asn1_get_bool( p, end, ca_istrue ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-            ret = mbedtls_asn1_get_int( p, end, ca_istrue );
-
-        if( ret != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-        if( *ca_istrue != 0 )
-            *ca_istrue = 1;
-    }
-
-    if( *p == end )
-        return( 0 );
-
-    if( ( ret = mbedtls_asn1_get_int( p, end, max_pathlen ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-    if( *p != end )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    (*max_pathlen)++;
-
-    return( 0 );
-}
-
-static int x509_get_ns_cert_type( unsigned char **p,
-                                       const unsigned char *end,
-                                       unsigned char *ns_cert_type)
-{
-    int ret;
-    mbedtls_x509_bitstring bs = { 0, 0, NULL };
-
-    if( ( ret = mbedtls_asn1_get_bitstring( p, end, &bs ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-    if( bs.len != 1 )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_INVALID_LENGTH );
-
-    /* Get actual bitstring */
-    *ns_cert_type = *bs.p;
-    return( 0 );
-}
-
-static int x509_get_key_usage( unsigned char **p,
-                               const unsigned char *end,
-                               unsigned int *key_usage)
-{
-    int ret;
-    size_t i;
-    mbedtls_x509_bitstring bs = { 0, 0, NULL };
-
-    if( ( ret = mbedtls_asn1_get_bitstring( p, end, &bs ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-    if( bs.len < 1 )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_INVALID_LENGTH );
-
-    /* Get actual bitstring */
-    *key_usage = 0;
-    for( i = 0; i < bs.len && i < sizeof( unsigned int ); i++ )
-    {
-        *key_usage |= (unsigned int) bs.p[i] << (8*i);
-    }
-
-    return( 0 );
-}
-
-/*
- * ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId
- *
- * KeyPurposeId ::= OBJECT IDENTIFIER
- */
-static int x509_get_ext_key_usage( unsigned char **p,
-                               const unsigned char *end,
-                               mbedtls_x509_sequence *ext_key_usage)
-{
-    int ret;
-
-    if( ( ret = mbedtls_asn1_get_sequence_of( p, end, ext_key_usage, MBEDTLS_ASN1_OID ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-    /* Sequence length must be >= 1 */
-    if( ext_key_usage->buf.p == NULL )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_INVALID_LENGTH );
-
-    return( 0 );
-}
-
-/*
- * SubjectAltName ::= GeneralNames
- *
- * GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName
- *
- * GeneralName ::= CHOICE {
- *      otherName                       [0]     OtherName,
- *      rfc822Name                      [1]     IA5String,
- *      dNSName                         [2]     IA5String,
- *      x400Address                     [3]     ORAddress,
- *      directoryName                   [4]     Name,
- *      ediPartyName                    [5]     EDIPartyName,
- *      uniformResourceIdentifier       [6]     IA5String,
- *      iPAddress                       [7]     OCTET STRING,
- *      registeredID                    [8]     OBJECT IDENTIFIER }
- *
- * OtherName ::= SEQUENCE {
- *      type-id    OBJECT IDENTIFIER,
- *      value      [0] EXPLICIT ANY DEFINED BY type-id }
- *
- * EDIPartyName ::= SEQUENCE {
- *      nameAssigner            [0]     DirectoryString OPTIONAL,
- *      partyName               [1]     DirectoryString }
- *
- * NOTE: we only parse and use dNSName at this point.
- */
-static int x509_get_subject_alt_name( unsigned char **p,
-                                      const unsigned char *end,
-                                      mbedtls_x509_sequence *subject_alt_name )
-{
-    int ret;
-    size_t len, tag_len;
-    mbedtls_asn1_buf *buf;
-    unsigned char tag;
-    mbedtls_asn1_sequence *cur = subject_alt_name;
-
-    /* Get main sequence tag */
-    if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-    if( *p + len != end )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    while( *p < end )
-    {
-        if( ( end - *p ) < 1 )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                    MBEDTLS_ERR_ASN1_OUT_OF_DATA );
-
-        tag = **p;
-        (*p)++;
-        if( ( ret = mbedtls_asn1_get_len( p, end, &tag_len ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-        if( ( tag & MBEDTLS_ASN1_TAG_CLASS_MASK ) !=
-                MBEDTLS_ASN1_CONTEXT_SPECIFIC )
-        {
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                    MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
-        }
-
-        /* Skip everything but DNS name */
-        if( tag != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | 2 ) )
-        {
-            *p += tag_len;
-            continue;
-        }
-
-        /* Allocate and assign next pointer */
-        if( cur->buf.p != NULL )
-        {
-            if( cur->next != NULL )
-                return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS );
-
-            cur->next = mbedtls_calloc( 1, sizeof( mbedtls_asn1_sequence ) );
-
-            if( cur->next == NULL )
-                return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                        MBEDTLS_ERR_ASN1_ALLOC_FAILED );
-
-            cur = cur->next;
-        }
-
-        buf = &(cur->buf);
-        buf->tag = tag;
-        buf->p = *p;
-        buf->len = tag_len;
-        *p += buf->len;
-    }
-
-    /* Set final sequence entry's next pointer to NULL */
-    cur->next = NULL;
-
-    if( *p != end )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    return( 0 );
-}
-
-/*
- * X.509 v3 extensions
- *
- */
-static int x509_get_crt_ext( unsigned char **p,
-                             const unsigned char *end,
-                             mbedtls_x509_crt *crt )
-{
-    int ret;
-    size_t len;
-    unsigned char *end_ext_data, *end_ext_octet;
-
-    if( ( ret = mbedtls_x509_get_ext( p, end, &crt->v3_ext, 3 ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-            return( 0 );
-
-        return( ret );
-    }
-
-    while( *p < end )
-    {
-        /*
-         * Extension  ::=  SEQUENCE  {
-         *      extnID      OBJECT IDENTIFIER,
-         *      critical    BOOLEAN DEFAULT FALSE,
-         *      extnValue   OCTET STRING  }
-         */
-        mbedtls_x509_buf extn_oid = {0, 0, NULL};
-        int is_critical = 0; /* DEFAULT FALSE */
-        int ext_type = 0;
-
-        if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
-                MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-        end_ext_data = *p + len;
-
-        /* Get extension ID */
-        if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &extn_oid.len,
-                                          MBEDTLS_ASN1_OID ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-        extn_oid.tag = MBEDTLS_ASN1_OID;
-        extn_oid.p = *p;
-        *p += extn_oid.len;
-
-        /* Get optional critical */
-        if( ( ret = mbedtls_asn1_get_bool( p, end_ext_data, &is_critical ) ) != 0 &&
-            ( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-        /* Data should be octet string type */
-        if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len,
-                MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
-
-        end_ext_octet = *p + len;
-
-        if( end_ext_octet != end_ext_data )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                    MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-        /*
-         * Detect supported extensions
-         */
-        ret = mbedtls_oid_get_x509_ext_type( &extn_oid, &ext_type );
-
-        if( ret != 0 )
-        {
-            /* No parser found, skip extension */
-            *p = end_ext_octet;
-
-#if !defined(MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION)
-            if( is_critical )
-            {
-                /* Data is marked as critical: fail */
-                return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                        MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
-            }
-#endif
-            continue;
-        }
-
-        /* Forbid repeated extensions */
-        if( ( crt->ext_types & ext_type ) != 0 )
-            return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS );
-
-        crt->ext_types |= ext_type;
-
-        switch( ext_type )
-        {
-        case MBEDTLS_X509_EXT_BASIC_CONSTRAINTS:
-            /* Parse basic constraints */
-            if( ( ret = x509_get_basic_constraints( p, end_ext_octet,
-                    &crt->ca_istrue, &crt->max_pathlen ) ) != 0 )
-                return( ret );
-            break;
-
-        case MBEDTLS_X509_EXT_KEY_USAGE:
-            /* Parse key usage */
-            if( ( ret = x509_get_key_usage( p, end_ext_octet,
-                    &crt->key_usage ) ) != 0 )
-                return( ret );
-            break;
-
-        case MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE:
-            /* Parse extended key usage */
-            if( ( ret = x509_get_ext_key_usage( p, end_ext_octet,
-                    &crt->ext_key_usage ) ) != 0 )
-                return( ret );
-            break;
-
-        case MBEDTLS_X509_EXT_SUBJECT_ALT_NAME:
-            /* Parse subject alt name */
-            if( ( ret = x509_get_subject_alt_name( p, end_ext_octet,
-                    &crt->subject_alt_names ) ) != 0 )
-                return( ret );
-            break;
-
-        case MBEDTLS_X509_EXT_NS_CERT_TYPE:
-            /* Parse netscape certificate type */
-            if( ( ret = x509_get_ns_cert_type( p, end_ext_octet,
-                    &crt->ns_cert_type ) ) != 0 )
-                return( ret );
-            break;
-
-        default:
-            /*
-             * If this is a non-critical extension, which the oid layer
-             * supports, but there isn't an x509 parser for it,
-             * skip the extension.
-             */
-#if !defined(MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION)
-            if( is_critical )
-                return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE );
-            else
-#endif
-                *p = end_ext_octet;
-        }
-    }
-
-    if( *p != end )
-        return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-
-    return( 0 );
-}
-
-/*
- * Parse and fill a single X.509 certificate in DER format
- */
-static int x509_crt_parse_der_core( mbedtls_x509_crt *crt,
-                                    const unsigned char *buf,
-                                    size_t buflen,
-                                    int make_copy )
-{
-    int ret;
-    size_t len;
-    unsigned char *p, *end, *crt_end;
-    mbedtls_x509_buf sig_params1, sig_params2, sig_oid2;
-
-    memset( &sig_params1, 0, sizeof( mbedtls_x509_buf ) );
-    memset( &sig_params2, 0, sizeof( mbedtls_x509_buf ) );
-    memset( &sig_oid2, 0, sizeof( mbedtls_x509_buf ) );
-
-    /*
-     * Check for valid input
-     */
-    if( crt == NULL || buf == NULL )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    /* Use the original buffer until we figure out actual length. */
-    p = (unsigned char*) buf;
-    len = buflen;
-    end = p + len;
-
-    /*
-     * Certificate  ::=  SEQUENCE  {
-     *      tbsCertificate       TBSCertificate,
-     *      signatureAlgorithm   AlgorithmIdentifier,
-     *      signatureValue       BIT STRING  }
-     */
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT );
-    }
-
-    end = crt_end = p + len;
-    crt->raw.len = crt_end - buf;
-    if( make_copy != 0 )
-    {
-        /* Create and populate a new buffer for the raw field. */
-        crt->raw.p = p = mbedtls_calloc( 1, crt->raw.len );
-        if( crt->raw.p == NULL )
-            return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-
-        memcpy( crt->raw.p, buf, crt->raw.len );
-        crt->own_buffer = 1;
-
-        p += crt->raw.len - len;
-        end = crt_end = p + len;
-    }
-    else
-    {
-        crt->raw.p = (unsigned char*) buf;
-        crt->own_buffer = 0;
-    }
-
-    /*
-     * TBSCertificate  ::=  SEQUENCE  {
-     */
-    crt->tbs.p = p;
-
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
-    }
-
-    end = p + len;
-    crt->tbs.len = end - crt->tbs.p;
-
-    /*
-     * Version  ::=  INTEGER  {  v1(0), v2(1), v3(2)  }
-     *
-     * CertificateSerialNumber  ::=  INTEGER
-     *
-     * signature            AlgorithmIdentifier
-     */
-    if( ( ret = x509_get_version(  &p, end, &crt->version  ) ) != 0 ||
-        ( ret = mbedtls_x509_get_serial(   &p, end, &crt->serial   ) ) != 0 ||
-        ( ret = mbedtls_x509_get_alg(      &p, end, &crt->sig_oid,
-                                            &sig_params1 ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( ret );
-    }
-
-    if( crt->version < 0 || crt->version > 2 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( MBEDTLS_ERR_X509_UNKNOWN_VERSION );
-    }
-
-    crt->version++;
-
-    if( ( ret = mbedtls_x509_get_sig_alg( &crt->sig_oid, &sig_params1,
-                                  &crt->sig_md, &crt->sig_pk,
-                                  &crt->sig_opts ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( ret );
-    }
-
-    /*
-     * issuer               Name
-     */
-    crt->issuer_raw.p = p;
-
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
-    }
-
-    if( ( ret = mbedtls_x509_get_name( &p, p + len, &crt->issuer ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( ret );
-    }
-
-    crt->issuer_raw.len = p - crt->issuer_raw.p;
-
-    /*
-     * Validity ::= SEQUENCE {
-     *      notBefore      Time,
-     *      notAfter       Time }
-     *
-     */
-    if( ( ret = x509_get_dates( &p, end, &crt->valid_from,
-                                         &crt->valid_to ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( ret );
-    }
-
-    /*
-     * subject              Name
-     */
-    crt->subject_raw.p = p;
-
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
-    }
-
-    if( len && ( ret = mbedtls_x509_get_name( &p, p + len, &crt->subject ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( ret );
-    }
-
-    crt->subject_raw.len = p - crt->subject_raw.p;
-
-    /*
-     * SubjectPublicKeyInfo
-     */
-    crt->pk_raw.p = p;
-    if( ( ret = mbedtls_pk_parse_subpubkey( &p, end, &crt->pk ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( ret );
-    }
-    crt->pk_raw.len = p - crt->pk_raw.p;
-
-    /*
-     *  issuerUniqueID  [1]  IMPLICIT UniqueIdentifier OPTIONAL,
-     *                       -- If present, version shall be v2 or v3
-     *  subjectUniqueID [2]  IMPLICIT UniqueIdentifier OPTIONAL,
-     *                       -- If present, version shall be v2 or v3
-     *  extensions      [3]  EXPLICIT Extensions OPTIONAL
-     *                       -- If present, version shall be v3
-     */
-    if( crt->version == 2 || crt->version == 3 )
-    {
-        ret = x509_get_uid( &p, end, &crt->issuer_id,  1 );
-        if( ret != 0 )
-        {
-            mbedtls_x509_crt_free( crt );
-            return( ret );
-        }
-    }
-
-    if( crt->version == 2 || crt->version == 3 )
-    {
-        ret = x509_get_uid( &p, end, &crt->subject_id,  2 );
-        if( ret != 0 )
-        {
-            mbedtls_x509_crt_free( crt );
-            return( ret );
-        }
-    }
-
-#if !defined(MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3)
-    if( crt->version == 3 )
-#endif
-    {
-        ret = x509_get_crt_ext( &p, end, crt );
-        if( ret != 0 )
-        {
-            mbedtls_x509_crt_free( crt );
-            return( ret );
-        }
-    }
-
-    if( p != end )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-    }
-
-    end = crt_end;
-
-    /*
-     *  }
-     *  -- end of TBSCertificate
-     *
-     *  signatureAlgorithm   AlgorithmIdentifier,
-     *  signatureValue       BIT STRING
-     */
-    if( ( ret = mbedtls_x509_get_alg( &p, end, &sig_oid2, &sig_params2 ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( ret );
-    }
-
-    if( crt->sig_oid.len != sig_oid2.len ||
-        memcmp( crt->sig_oid.p, sig_oid2.p, crt->sig_oid.len ) != 0 ||
-        sig_params1.len != sig_params2.len ||
-        ( sig_params1.len != 0 &&
-          memcmp( sig_params1.p, sig_params2.p, sig_params1.len ) != 0 ) )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( MBEDTLS_ERR_X509_SIG_MISMATCH );
-    }
-
-    if( ( ret = mbedtls_x509_get_sig( &p, end, &crt->sig ) ) != 0 )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( ret );
-    }
-
-    if( p != end )
-    {
-        mbedtls_x509_crt_free( crt );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-    }
-
-    return( 0 );
-}
-
-/*
- * Parse one X.509 certificate in DER format from a buffer and add them to a
- * chained list
- */
-static int mbedtls_x509_crt_parse_der_internal( mbedtls_x509_crt *chain,
-                                                const unsigned char *buf,
-                                                size_t buflen,
-                                                int make_copy )
-{
-    int ret;
-    mbedtls_x509_crt *crt = chain, *prev = NULL;
-
-    /*
-     * Check for valid input
-     */
-    if( crt == NULL || buf == NULL )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    while( crt->version != 0 && crt->next != NULL )
-    {
-        prev = crt;
-        crt = crt->next;
-    }
-
-    /*
-     * Add new certificate on the end of the chain if needed.
-     */
-    if( crt->version != 0 && crt->next == NULL )
-    {
-        crt->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
-
-        if( crt->next == NULL )
-            return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-
-        prev = crt;
-        mbedtls_x509_crt_init( crt->next );
-        crt = crt->next;
-    }
-
-    if( ( ret = x509_crt_parse_der_core( crt, buf, buflen, make_copy ) ) != 0 )
-    {
-        if( prev )
-            prev->next = NULL;
-
-        if( crt != chain )
-            mbedtls_free( crt );
-
-        return( ret );
-    }
-
-    return( 0 );
-}
-
-int mbedtls_x509_crt_parse_der_nocopy( mbedtls_x509_crt *chain,
-                                       const unsigned char *buf,
-                                       size_t buflen )
-{
-    return( mbedtls_x509_crt_parse_der_internal( chain, buf, buflen, 0 ) );
-}
-
-int mbedtls_x509_crt_parse_der( mbedtls_x509_crt *chain,
-                                const unsigned char *buf,
-                                size_t buflen )
-{
-    return( mbedtls_x509_crt_parse_der_internal( chain, buf, buflen, 1 ) );
-}
-
-/*
- * Parse one or more PEM certificates from a buffer and add them to the chained
- * list
- */
-int mbedtls_x509_crt_parse( mbedtls_x509_crt *chain,
-                            const unsigned char *buf,
-                            size_t buflen )
-{
-#if defined(MBEDTLS_PEM_PARSE_C)
-    int success = 0, first_error = 0, total_failed = 0;
-    int buf_format = MBEDTLS_X509_FORMAT_DER;
-#endif
-
-    /*
-     * Check for valid input
-     */
-    if( chain == NULL || buf == NULL )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    /*
-     * Determine buffer content. Buffer contains either one DER certificate or
-     * one or more PEM certificates.
-     */
-#if defined(MBEDTLS_PEM_PARSE_C)
-    if( buflen != 0 && buf[buflen - 1] == '\0' &&
-        strstr( (const char *) buf, "-----BEGIN CERTIFICATE-----" ) != NULL )
-    {
-        buf_format = MBEDTLS_X509_FORMAT_PEM;
-    }
-
-    if( buf_format == MBEDTLS_X509_FORMAT_DER )
-        return mbedtls_x509_crt_parse_der( chain, buf, buflen );
-#else
-    return mbedtls_x509_crt_parse_der( chain, buf, buflen );
-#endif
-
-#if defined(MBEDTLS_PEM_PARSE_C)
-    if( buf_format == MBEDTLS_X509_FORMAT_PEM )
-    {
-        int ret;
-        mbedtls_pem_context pem;
-
-        /* 1 rather than 0 since the terminating NULL byte is counted in */
-        while( buflen > 1 )
-        {
-            size_t use_len;
-            mbedtls_pem_init( &pem );
-
-            /* If we get there, we know the string is null-terminated */
-            ret = mbedtls_pem_read_buffer( &pem,
-                           "-----BEGIN CERTIFICATE-----",
-                           "-----END CERTIFICATE-----",
-                           buf, NULL, 0, &use_len );
-
-            if( ret == 0 )
-            {
-                /*
-                 * Was PEM encoded
-                 */
-                buflen -= use_len;
-                buf += use_len;
-            }
-            else if( ret == MBEDTLS_ERR_PEM_BAD_INPUT_DATA )
-            {
-                return( ret );
-            }
-            else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
-            {
-                mbedtls_pem_free( &pem );
-
-                /*
-                 * PEM header and footer were found
-                 */
-                buflen -= use_len;
-                buf += use_len;
-
-                if( first_error == 0 )
-                    first_error = ret;
-
-                total_failed++;
-                continue;
-            }
-            else
-                break;
-
-            ret = mbedtls_x509_crt_parse_der( chain, pem.buf, pem.buflen );
-
-            mbedtls_pem_free( &pem );
-
-            if( ret != 0 )
-            {
-                /*
-                 * Quit parsing on a memory error
-                 */
-                if( ret == MBEDTLS_ERR_X509_ALLOC_FAILED )
-                    return( ret );
-
-                if( first_error == 0 )
-                    first_error = ret;
-
-                total_failed++;
-                continue;
-            }
-
-            success = 1;
-        }
-    }
-
-    if( success )
-        return( total_failed );
-    else if( first_error )
-        return( first_error );
-    else
-        return( MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT );
-#endif /* MBEDTLS_PEM_PARSE_C */
-}
-
-#if defined(MBEDTLS_FS_IO)
-/*
- * Load one or more certificates and add them to the chained list
- */
-int mbedtls_x509_crt_parse_file( mbedtls_x509_crt *chain, const char *path )
-{
-    int ret;
-    size_t n;
-    unsigned char *buf;
-
-    if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
-        return( ret );
-
-    ret = mbedtls_x509_crt_parse( chain, buf, n );
-
-    mbedtls_platform_zeroize( buf, n );
-    mbedtls_free( buf );
-
-    return( ret );
-}
-
-int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
-{
-    int ret = 0;
-#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
-    int w_ret;
-    WCHAR szDir[MAX_PATH];
-    char filename[MAX_PATH];
-    char *p;
-    size_t len = strlen( path );
-
-    WIN32_FIND_DATAW file_data;
-    HANDLE hFind;
-
-    if( len > MAX_PATH - 3 )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    memset( szDir, 0, sizeof(szDir) );
-    memset( filename, 0, MAX_PATH );
-    memcpy( filename, path, len );
-    filename[len++] = '\\';
-    p = filename + len;
-    filename[len++] = '*';
-
-    w_ret = MultiByteToWideChar( CP_ACP, 0, filename, (int)len, szDir,
-                                 MAX_PATH - 3 );
-    if( w_ret == 0 )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    hFind = FindFirstFileW( szDir, &file_data );
-    if( hFind == INVALID_HANDLE_VALUE )
-        return( MBEDTLS_ERR_X509_FILE_IO_ERROR );
-
-    len = MAX_PATH - len;
-    do
-    {
-        memset( p, 0, len );
-
-        if( file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
-            continue;
-
-        w_ret = WideCharToMultiByte( CP_ACP, 0, file_data.cFileName,
-                                     lstrlenW( file_data.cFileName ),
-                                     p, (int) len - 1,
-                                     NULL, NULL );
-        if( w_ret == 0 )
-        {
-            ret = MBEDTLS_ERR_X509_FILE_IO_ERROR;
-            goto cleanup;
-        }
-
-        w_ret = mbedtls_x509_crt_parse_file( chain, filename );
-        if( w_ret < 0 )
-            ret++;
-        else
-            ret += w_ret;
-    }
-    while( FindNextFileW( hFind, &file_data ) != 0 );
-
-    if( GetLastError() != ERROR_NO_MORE_FILES )
-        ret = MBEDTLS_ERR_X509_FILE_IO_ERROR;
-
-cleanup:
-    FindClose( hFind );
-#else /* _WIN32 */
-    int t_ret;
-    int snp_ret;
-    struct stat sb;
-    struct dirent *entry;
-    char entry_name[MBEDTLS_X509_MAX_FILE_PATH_LEN];
-    DIR *dir = opendir( path );
-
-    if( dir == NULL )
-        return( MBEDTLS_ERR_X509_FILE_IO_ERROR );
-
-#if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &mbedtls_threading_readdir_mutex ) ) != 0 )
-    {
-        closedir( dir );
-        return( ret );
-    }
-#endif /* MBEDTLS_THREADING_C */
-
-    while( ( entry = readdir( dir ) ) != NULL )
-    {
-        snp_ret = mbedtls_snprintf( entry_name, sizeof entry_name,
-                                    "%s/%s", path, entry->d_name );
-
-        if( snp_ret < 0 || (size_t)snp_ret >= sizeof entry_name )
-        {
-            ret = MBEDTLS_ERR_X509_BUFFER_TOO_SMALL;
-            goto cleanup;
-        }
-        else if( stat( entry_name, &sb ) == -1 )
-        {
-            ret = MBEDTLS_ERR_X509_FILE_IO_ERROR;
-            goto cleanup;
-        }
-
-        if( !S_ISREG( sb.st_mode ) )
-            continue;
-
-        // Ignore parse errors
-        //
-        t_ret = mbedtls_x509_crt_parse_file( chain, entry_name );
-        if( t_ret < 0 )
-            ret++;
-        else
-            ret += t_ret;
-    }
-
-cleanup:
-    closedir( dir );
-
-#if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &mbedtls_threading_readdir_mutex ) != 0 )
-        ret = MBEDTLS_ERR_THREADING_MUTEX_ERROR;
-#endif /* MBEDTLS_THREADING_C */
-
-#endif /* _WIN32 */
-
-    return( ret );
-}
-#endif /* MBEDTLS_FS_IO */
-
-static int x509_info_subject_alt_name( char **buf, size_t *size,
-                                       const mbedtls_x509_sequence *subject_alt_name )
-{
-    size_t i;
-    size_t n = *size;
-    char *p = *buf;
-    const mbedtls_x509_sequence *cur = subject_alt_name;
-    const char *sep = "";
-    size_t sep_len = 0;
-
-    while( cur != NULL )
-    {
-        if( cur->buf.len + sep_len >= n )
-        {
-            *p = '\0';
-            return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL );
-        }
-
-        n -= cur->buf.len + sep_len;
-        for( i = 0; i < sep_len; i++ )
-            *p++ = sep[i];
-        for( i = 0; i < cur->buf.len; i++ )
-            *p++ = cur->buf.p[i];
-
-        sep = ", ";
-        sep_len = 2;
-
-        cur = cur->next;
-    }
-
-    *p = '\0';
-
-    *size = n;
-    *buf = p;
-
-    return( 0 );
-}
-
-#define PRINT_ITEM(i)                           \
-    {                                           \
-        ret = mbedtls_snprintf( p, n, "%s" i, sep );    \
-        MBEDTLS_X509_SAFE_SNPRINTF;                        \
-        sep = ", ";                             \
-    }
-
-#define CERT_TYPE(type,name)                    \
-    if( ns_cert_type & type )                   \
-        PRINT_ITEM( name );
-
-static int x509_info_cert_type( char **buf, size_t *size,
-                                unsigned char ns_cert_type )
-{
-    int ret;
-    size_t n = *size;
-    char *p = *buf;
-    const char *sep = "";
-
-    CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT,         "SSL Client" );
-    CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER,         "SSL Server" );
-    CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_EMAIL,              "Email" );
-    CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING,     "Object Signing" );
-    CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_RESERVED,           "Reserved" );
-    CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_CA,             "SSL CA" );
-    CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA,           "Email CA" );
-    CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA,  "Object Signing CA" );
-
-    *size = n;
-    *buf = p;
-
-    return( 0 );
-}
-
-#define KEY_USAGE(code,name)    \
-    if( key_usage & code )      \
-        PRINT_ITEM( name );
-
-static int x509_info_key_usage( char **buf, size_t *size,
-                                unsigned int key_usage )
-{
-    int ret;
-    size_t n = *size;
-    char *p = *buf;
-    const char *sep = "";
-
-    KEY_USAGE( MBEDTLS_X509_KU_DIGITAL_SIGNATURE,    "Digital Signature" );
-    KEY_USAGE( MBEDTLS_X509_KU_NON_REPUDIATION,      "Non Repudiation" );
-    KEY_USAGE( MBEDTLS_X509_KU_KEY_ENCIPHERMENT,     "Key Encipherment" );
-    KEY_USAGE( MBEDTLS_X509_KU_DATA_ENCIPHERMENT,    "Data Encipherment" );
-    KEY_USAGE( MBEDTLS_X509_KU_KEY_AGREEMENT,        "Key Agreement" );
-    KEY_USAGE( MBEDTLS_X509_KU_KEY_CERT_SIGN,        "Key Cert Sign" );
-    KEY_USAGE( MBEDTLS_X509_KU_CRL_SIGN,             "CRL Sign" );
-    KEY_USAGE( MBEDTLS_X509_KU_ENCIPHER_ONLY,        "Encipher Only" );
-    KEY_USAGE( MBEDTLS_X509_KU_DECIPHER_ONLY,        "Decipher Only" );
-
-    *size = n;
-    *buf = p;
-
-    return( 0 );
-}
-
-static int x509_info_ext_key_usage( char **buf, size_t *size,
-                                    const mbedtls_x509_sequence *extended_key_usage )
-{
-    int ret;
-    const char *desc;
-    size_t n = *size;
-    char *p = *buf;
-    const mbedtls_x509_sequence *cur = extended_key_usage;
-    const char *sep = "";
-
-    while( cur != NULL )
-    {
-        if( mbedtls_oid_get_extended_key_usage( &cur->buf, &desc ) != 0 )
-            desc = "???";
-
-        ret = mbedtls_snprintf( p, n, "%s%s", sep, desc );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        sep = ", ";
-
-        cur = cur->next;
-    }
-
-    *size = n;
-    *buf = p;
-
-    return( 0 );
-}
-
-/*
- * Return an informational string about the certificate.
- */
-#define BEFORE_COLON    18
-#define BC              "18"
-int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix,
-                   const mbedtls_x509_crt *crt )
-{
-    int ret;
-    size_t n;
-    char *p;
-    char key_size_str[BEFORE_COLON];
-
-    p = buf;
-    n = size;
-
-    if( NULL == crt )
-    {
-        ret = mbedtls_snprintf( p, n, "\nCertificate is uninitialised!\n" );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        return( (int) ( size - n ) );
-    }
-
-    ret = mbedtls_snprintf( p, n, "%scert. version     : %d\n",
-                               prefix, crt->version );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-    ret = mbedtls_snprintf( p, n, "%sserial number     : ",
-                               prefix );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_x509_serial_gets( p, n, &crt->serial );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n%sissuer name       : ", prefix );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-    ret = mbedtls_x509_dn_gets( p, n, &crt->issuer  );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n%ssubject name      : ", prefix );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-    ret = mbedtls_x509_dn_gets( p, n, &crt->subject );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n%sissued  on        : " \
-                   "%04d-%02d-%02d %02d:%02d:%02d", prefix,
-                   crt->valid_from.year, crt->valid_from.mon,
-                   crt->valid_from.day,  crt->valid_from.hour,
-                   crt->valid_from.min,  crt->valid_from.sec );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n%sexpires on        : " \
-                   "%04d-%02d-%02d %02d:%02d:%02d", prefix,
-                   crt->valid_to.year, crt->valid_to.mon,
-                   crt->valid_to.day,  crt->valid_to.hour,
-                   crt->valid_to.min,  crt->valid_to.sec );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n%ssigned using      : ", prefix );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_x509_sig_alg_gets( p, n, &crt->sig_oid, crt->sig_pk,
-                             crt->sig_md, crt->sig_opts );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    /* Key size */
-    if( ( ret = mbedtls_x509_key_size_helper( key_size_str, BEFORE_COLON,
-                                      mbedtls_pk_get_name( &crt->pk ) ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    ret = mbedtls_snprintf( p, n, "\n%s%-" BC "s: %d bits", prefix, key_size_str,
-                          (int) mbedtls_pk_get_bitlen( &crt->pk ) );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    /*
-     * Optional extensions
-     */
-
-    if( crt->ext_types & MBEDTLS_X509_EXT_BASIC_CONSTRAINTS )
-    {
-        ret = mbedtls_snprintf( p, n, "\n%sbasic constraints : CA=%s", prefix,
-                        crt->ca_istrue ? "true" : "false" );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        if( crt->max_pathlen > 0 )
-        {
-            ret = mbedtls_snprintf( p, n, ", max_pathlen=%d", crt->max_pathlen - 1 );
-            MBEDTLS_X509_SAFE_SNPRINTF;
-        }
-    }
-
-    if( crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME )
-    {
-        ret = mbedtls_snprintf( p, n, "\n%ssubject alt name  : ", prefix );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        if( ( ret = x509_info_subject_alt_name( &p, &n,
-                                            &crt->subject_alt_names ) ) != 0 )
-            return( ret );
-    }
-
-    if( crt->ext_types & MBEDTLS_X509_EXT_NS_CERT_TYPE )
-    {
-        ret = mbedtls_snprintf( p, n, "\n%scert. type        : ", prefix );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        if( ( ret = x509_info_cert_type( &p, &n, crt->ns_cert_type ) ) != 0 )
-            return( ret );
-    }
-
-    if( crt->ext_types & MBEDTLS_X509_EXT_KEY_USAGE )
-    {
-        ret = mbedtls_snprintf( p, n, "\n%skey usage         : ", prefix );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        if( ( ret = x509_info_key_usage( &p, &n, crt->key_usage ) ) != 0 )
-            return( ret );
-    }
-
-    if( crt->ext_types & MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE )
-    {
-        ret = mbedtls_snprintf( p, n, "\n%sext key usage     : ", prefix );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-
-        if( ( ret = x509_info_ext_key_usage( &p, &n,
-                                             &crt->ext_key_usage ) ) != 0 )
-            return( ret );
-    }
-
-    ret = mbedtls_snprintf( p, n, "\n" );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    return( (int) ( size - n ) );
-}
-
-struct x509_crt_verify_string {
-    int code;
-    const char *string;
-};
-
-static const struct x509_crt_verify_string x509_crt_verify_strings[] = {
-    { MBEDTLS_X509_BADCERT_EXPIRED,       "The certificate validity has expired" },
-    { MBEDTLS_X509_BADCERT_REVOKED,       "The certificate has been revoked (is on a CRL)" },
-    { MBEDTLS_X509_BADCERT_CN_MISMATCH,   "The certificate Common Name (CN) does not match with the expected CN" },
-    { MBEDTLS_X509_BADCERT_NOT_TRUSTED,   "The certificate is not correctly signed by the trusted CA" },
-    { MBEDTLS_X509_BADCRL_NOT_TRUSTED,    "The CRL is not correctly signed by the trusted CA" },
-    { MBEDTLS_X509_BADCRL_EXPIRED,        "The CRL is expired" },
-    { MBEDTLS_X509_BADCERT_MISSING,       "Certificate was missing" },
-    { MBEDTLS_X509_BADCERT_SKIP_VERIFY,   "Certificate verification was skipped" },
-    { MBEDTLS_X509_BADCERT_OTHER,         "Other reason (can be used by verify callback)" },
-    { MBEDTLS_X509_BADCERT_FUTURE,        "The certificate validity starts in the future" },
-    { MBEDTLS_X509_BADCRL_FUTURE,         "The CRL is from the future" },
-    { MBEDTLS_X509_BADCERT_KEY_USAGE,     "Usage does not match the keyUsage extension" },
-    { MBEDTLS_X509_BADCERT_EXT_KEY_USAGE, "Usage does not match the extendedKeyUsage extension" },
-    { MBEDTLS_X509_BADCERT_NS_CERT_TYPE,  "Usage does not match the nsCertType extension" },
-    { MBEDTLS_X509_BADCERT_BAD_MD,        "The certificate is signed with an unacceptable hash." },
-    { MBEDTLS_X509_BADCERT_BAD_PK,        "The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA)." },
-    { MBEDTLS_X509_BADCERT_BAD_KEY,       "The certificate is signed with an unacceptable key (eg bad curve, RSA too short)." },
-    { MBEDTLS_X509_BADCRL_BAD_MD,         "The CRL is signed with an unacceptable hash." },
-    { MBEDTLS_X509_BADCRL_BAD_PK,         "The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA)." },
-    { MBEDTLS_X509_BADCRL_BAD_KEY,        "The CRL is signed with an unacceptable key (eg bad curve, RSA too short)." },
-    { 0, NULL }
-};
-
-int mbedtls_x509_crt_verify_info( char *buf, size_t size, const char *prefix,
-                          uint32_t flags )
-{
-    int ret;
-    const struct x509_crt_verify_string *cur;
-    char *p = buf;
-    size_t n = size;
-
-    for( cur = x509_crt_verify_strings; cur->string != NULL ; cur++ )
-    {
-        if( ( flags & cur->code ) == 0 )
-            continue;
-
-        ret = mbedtls_snprintf( p, n, "%s%s\n", prefix, cur->string );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-        flags ^= cur->code;
-    }
-
-    if( flags != 0 )
-    {
-        ret = mbedtls_snprintf( p, n, "%sUnknown reason "
-                                       "(this should not happen)\n", prefix );
-        MBEDTLS_X509_SAFE_SNPRINTF;
-    }
-
-    return( (int) ( size - n ) );
-}
-
-#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
-int mbedtls_x509_crt_check_key_usage( const mbedtls_x509_crt *crt,
-                                      unsigned int usage )
-{
-    unsigned int usage_must, usage_may;
-    unsigned int may_mask = MBEDTLS_X509_KU_ENCIPHER_ONLY
-                          | MBEDTLS_X509_KU_DECIPHER_ONLY;
-
-    if( ( crt->ext_types & MBEDTLS_X509_EXT_KEY_USAGE ) == 0 )
-        return( 0 );
-
-    usage_must = usage & ~may_mask;
-
-    if( ( ( crt->key_usage & ~may_mask ) & usage_must ) != usage_must )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    usage_may = usage & may_mask;
-
-    if( ( ( crt->key_usage & may_mask ) | usage_may ) != usage_may )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    return( 0 );
-}
-#endif
-
-#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
-int mbedtls_x509_crt_check_extended_key_usage( const mbedtls_x509_crt *crt,
-                                       const char *usage_oid,
-                                       size_t usage_len )
-{
-    const mbedtls_x509_sequence *cur;
-
-    /* Extension is not mandatory, absent means no restriction */
-    if( ( crt->ext_types & MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE ) == 0 )
-        return( 0 );
-
-    /*
-     * Look for the requested usage (or wildcard ANY) in our list
-     */
-    for( cur = &crt->ext_key_usage; cur != NULL; cur = cur->next )
-    {
-        const mbedtls_x509_buf *cur_oid = &cur->buf;
-
-        if( cur_oid->len == usage_len &&
-            memcmp( cur_oid->p, usage_oid, usage_len ) == 0 )
-        {
-            return( 0 );
-        }
-
-        if( MBEDTLS_OID_CMP( MBEDTLS_OID_ANY_EXTENDED_KEY_USAGE, cur_oid ) == 0 )
-            return( 0 );
-    }
-
-    return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-}
-#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */
-
-#if defined(MBEDTLS_X509_CRL_PARSE_C)
-/*
- * Return 1 if the certificate is revoked, or 0 otherwise.
- */
-int mbedtls_x509_crt_is_revoked( const mbedtls_x509_crt *crt, const mbedtls_x509_crl *crl )
-{
-    const mbedtls_x509_crl_entry *cur = &crl->entry;
-
-    while( cur != NULL && cur->serial.len != 0 )
-    {
-        if( crt->serial.len == cur->serial.len &&
-            memcmp( crt->serial.p, cur->serial.p, crt->serial.len ) == 0 )
-        {
-            if( mbedtls_x509_time_is_past( &cur->revocation_date ) )
-                return( 1 );
-        }
-
-        cur = cur->next;
-    }
-
-    return( 0 );
-}
-
-/*
- * Check that the given certificate is not revoked according to the CRL.
- * Skip validation if no CRL for the given CA is present.
- */
-static int x509_crt_verifycrl( mbedtls_x509_crt *crt, mbedtls_x509_crt *ca,
-                               mbedtls_x509_crl *crl_list,
-                               const mbedtls_x509_crt_profile *profile )
-{
-    int flags = 0;
-    unsigned char hash[MBEDTLS_MD_MAX_SIZE];
-    const mbedtls_md_info_t *md_info;
-
-    if( ca == NULL )
-        return( flags );
-
-    while( crl_list != NULL )
-    {
-        if( crl_list->version == 0 ||
-            x509_name_cmp( &crl_list->issuer, &ca->subject ) != 0 )
-        {
-            crl_list = crl_list->next;
-            continue;
-        }
-
-        /*
-         * Check if the CA is configured to sign CRLs
-         */
-#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
-        if( mbedtls_x509_crt_check_key_usage( ca,
-                                              MBEDTLS_X509_KU_CRL_SIGN ) != 0 )
-        {
-            flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED;
-            break;
-        }
-#endif
-
-        /*
-         * Check if CRL is correctly signed by the trusted CA
-         */
-        if( x509_profile_check_md_alg( profile, crl_list->sig_md ) != 0 )
-            flags |= MBEDTLS_X509_BADCRL_BAD_MD;
-
-        if( x509_profile_check_pk_alg( profile, crl_list->sig_pk ) != 0 )
-            flags |= MBEDTLS_X509_BADCRL_BAD_PK;
-
-        md_info = mbedtls_md_info_from_type( crl_list->sig_md );
-        if( mbedtls_md( md_info, crl_list->tbs.p, crl_list->tbs.len, hash ) != 0 )
-        {
-            /* Note: this can't happen except after an internal error */
-            flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED;
-            break;
-        }
-
-        if( x509_profile_check_key( profile, &ca->pk ) != 0 )
-            flags |= MBEDTLS_X509_BADCERT_BAD_KEY;
-
-        if( mbedtls_pk_verify_ext( crl_list->sig_pk, crl_list->sig_opts, &ca->pk,
-                           crl_list->sig_md, hash, mbedtls_md_get_size( md_info ),
-                           crl_list->sig.p, crl_list->sig.len ) != 0 )
-        {
-            flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED;
-            break;
-        }
-
-        /*
-         * Check for validity of CRL (Do not drop out)
-         */
-        if( mbedtls_x509_time_is_past( &crl_list->next_update ) )
-            flags |= MBEDTLS_X509_BADCRL_EXPIRED;
-
-        if( mbedtls_x509_time_is_future( &crl_list->this_update ) )
-            flags |= MBEDTLS_X509_BADCRL_FUTURE;
-
-        /*
-         * Check if certificate is revoked
-         */
-        if( mbedtls_x509_crt_is_revoked( crt, crl_list ) )
-        {
-            flags |= MBEDTLS_X509_BADCERT_REVOKED;
-            break;
-        }
-
-        crl_list = crl_list->next;
-    }
-
-    return( flags );
-}
-#endif /* MBEDTLS_X509_CRL_PARSE_C */
-
-/*
- * Check the signature of a certificate by its parent
- */
-static int x509_crt_check_signature( const mbedtls_x509_crt *child,
-                                     mbedtls_x509_crt *parent,
-                                     mbedtls_x509_crt_restart_ctx *rs_ctx )
-{
-    unsigned char hash[MBEDTLS_MD_MAX_SIZE];
-    size_t hash_len;
-#if !defined(MBEDTLS_USE_PSA_CRYPTO)
-    const mbedtls_md_info_t *md_info;
-    md_info = mbedtls_md_info_from_type( child->sig_md );
-    hash_len = mbedtls_md_get_size( md_info );
-
-    /* Note: hash errors can happen only after an internal error */
-    if( mbedtls_md( md_info, child->tbs.p, child->tbs.len, hash ) != 0 )
-        return( -1 );
-#else
-    psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT;
-    psa_algorithm_t hash_alg = mbedtls_psa_translate_md( child->sig_md );
-
-    if( psa_hash_setup( &hash_operation, hash_alg ) != PSA_SUCCESS )
-        return( -1 );
-
-    if( psa_hash_update( &hash_operation, child->tbs.p, child->tbs.len )
-        != PSA_SUCCESS )
-    {
-        return( -1 );
-    }
-
-    if( psa_hash_finish( &hash_operation, hash, sizeof( hash ), &hash_len )
-        != PSA_SUCCESS )
-    {
-        return( -1 );
-    }
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    /* Skip expensive computation on obvious mismatch */
-    if( ! mbedtls_pk_can_do( &parent->pk, child->sig_pk ) )
-        return( -1 );
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-    if( rs_ctx != NULL && child->sig_pk == MBEDTLS_PK_ECDSA )
-    {
-        return( mbedtls_pk_verify_restartable( &parent->pk,
-                    child->sig_md, hash, hash_len,
-                    child->sig.p, child->sig.len, &rs_ctx->pk ) );
-    }
-#else
-    (void) rs_ctx;
-#endif
-
-    return( mbedtls_pk_verify_ext( child->sig_pk, child->sig_opts, &parent->pk,
-                child->sig_md, hash, hash_len,
-                child->sig.p, child->sig.len ) );
-}
-
-/*
- * Check if 'parent' is a suitable parent (signing CA) for 'child'.
- * Return 0 if yes, -1 if not.
- *
- * top means parent is a locally-trusted certificate
- */
-static int x509_crt_check_parent( const mbedtls_x509_crt *child,
-                                  const mbedtls_x509_crt *parent,
-                                  int top )
-{
-    int need_ca_bit;
-
-    /* Parent must be the issuer */
-    if( x509_name_cmp( &child->issuer, &parent->subject ) != 0 )
-        return( -1 );
-
-    /* Parent must have the basicConstraints CA bit set as a general rule */
-    need_ca_bit = 1;
-
-    /* Exception: v1/v2 certificates that are locally trusted. */
-    if( top && parent->version < 3 )
-        need_ca_bit = 0;
-
-    if( need_ca_bit && ! parent->ca_istrue )
-        return( -1 );
-
-#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
-    if( need_ca_bit &&
-        mbedtls_x509_crt_check_key_usage( parent, MBEDTLS_X509_KU_KEY_CERT_SIGN ) != 0 )
-    {
-        return( -1 );
-    }
-#endif
-
-    return( 0 );
-}
-
-/*
- * Find a suitable parent for child in candidates, or return NULL.
- *
- * Here suitable is defined as:
- *  1. subject name matches child's issuer
- *  2. if necessary, the CA bit is set and key usage allows signing certs
- *  3. for trusted roots, the signature is correct
- *     (for intermediates, the signature is checked and the result reported)
- *  4. pathlen constraints are satisfied
- *
- * If there's a suitable candidate which is also time-valid, return the first
- * such. Otherwise, return the first suitable candidate (or NULL if there is
- * none).
- *
- * The rationale for this rule is that someone could have a list of trusted
- * roots with two versions on the same root with different validity periods.
- * (At least one user reported having such a list and wanted it to just work.)
- * The reason we don't just require time-validity is that generally there is
- * only one version, and if it's expired we want the flags to state that
- * rather than NOT_TRUSTED, as would be the case if we required it here.
- *
- * The rationale for rule 3 (signature for trusted roots) is that users might
- * have two versions of the same CA with different keys in their list, and the
- * way we select the correct one is by checking the signature (as we don't
- * rely on key identifier extensions). (This is one way users might choose to
- * handle key rollover, another relies on self-issued certs, see [SIRO].)
- *
- * Arguments:
- *  - [in] child: certificate for which we're looking for a parent
- *  - [in] candidates: chained list of potential parents
- *  - [out] r_parent: parent found (or NULL)
- *  - [out] r_signature_is_good: 1 if child signature by parent is valid, or 0
- *  - [in] top: 1 if candidates consists of trusted roots, ie we're at the top
- *         of the chain, 0 otherwise
- *  - [in] path_cnt: number of intermediates seen so far
- *  - [in] self_cnt: number of self-signed intermediates seen so far
- *         (will never be greater than path_cnt)
- *  - [in-out] rs_ctx: context for restarting operations
- *
- * Return value:
- *  - 0 on success
- *  - MBEDTLS_ERR_ECP_IN_PROGRESS otherwise
- */
-static int x509_crt_find_parent_in(
-                        mbedtls_x509_crt *child,
-                        mbedtls_x509_crt *candidates,
-                        mbedtls_x509_crt **r_parent,
-                        int *r_signature_is_good,
-                        int top,
-                        unsigned path_cnt,
-                        unsigned self_cnt,
-                        mbedtls_x509_crt_restart_ctx *rs_ctx )
-{
-    int ret;
-    mbedtls_x509_crt *parent, *fallback_parent;
-    int signature_is_good, fallback_signature_is_good;
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-    /* did we have something in progress? */
-    if( rs_ctx != NULL && rs_ctx->parent != NULL )
-    {
-        /* restore saved state */
-        parent = rs_ctx->parent;
-        fallback_parent = rs_ctx->fallback_parent;
-        fallback_signature_is_good = rs_ctx->fallback_signature_is_good;
-
-        /* clear saved state */
-        rs_ctx->parent = NULL;
-        rs_ctx->fallback_parent = NULL;
-        rs_ctx->fallback_signature_is_good = 0;
-
-        /* resume where we left */
-        goto check_signature;
-    }
-#endif
-
-    fallback_parent = NULL;
-    fallback_signature_is_good = 0;
-
-    for( parent = candidates; parent != NULL; parent = parent->next )
-    {
-        /* basic parenting skills (name, CA bit, key usage) */
-        if( x509_crt_check_parent( child, parent, top ) != 0 )
-            continue;
-
-        /* +1 because stored max_pathlen is 1 higher that the actual value */
-        if( parent->max_pathlen > 0 &&
-            (size_t) parent->max_pathlen < 1 + path_cnt - self_cnt )
-        {
-            continue;
-        }
-
-        /* Signature */
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-check_signature:
-#endif
-        ret = x509_crt_check_signature( child, parent, rs_ctx );
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-        if( rs_ctx != NULL && ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-        {
-            /* save state */
-            rs_ctx->parent = parent;
-            rs_ctx->fallback_parent = fallback_parent;
-            rs_ctx->fallback_signature_is_good = fallback_signature_is_good;
-
-            return( ret );
-        }
-#else
-        (void) ret;
-#endif
-
-        signature_is_good = ret == 0;
-        if( top && ! signature_is_good )
-            continue;
-
-        /* optional time check */
-        if( mbedtls_x509_time_is_past( &parent->valid_to ) ||
-            mbedtls_x509_time_is_future( &parent->valid_from ) )
-        {
-            if( fallback_parent == NULL )
-            {
-                fallback_parent = parent;
-                fallback_signature_is_good = signature_is_good;
-            }
-
-            continue;
-        }
-
-        break;
-    }
-
-    if( parent != NULL )
-    {
-        *r_parent = parent;
-        *r_signature_is_good = signature_is_good;
-    }
-    else
-    {
-        *r_parent = fallback_parent;
-        *r_signature_is_good = fallback_signature_is_good;
-    }
-
-    return( 0 );
-}
-
-/*
- * Find a parent in trusted CAs or the provided chain, or return NULL.
- *
- * Searches in trusted CAs first, and return the first suitable parent found
- * (see find_parent_in() for definition of suitable).
- *
- * Arguments:
- *  - [in] child: certificate for which we're looking for a parent, followed
- *         by a chain of possible intermediates
- *  - [in] trust_ca: list of locally trusted certificates
- *  - [out] parent: parent found (or NULL)
- *  - [out] parent_is_trusted: 1 if returned `parent` is trusted, or 0
- *  - [out] signature_is_good: 1 if child signature by parent is valid, or 0
- *  - [in] path_cnt: number of links in the chain so far (EE -> ... -> child)
- *  - [in] self_cnt: number of self-signed certs in the chain so far
- *         (will always be no greater than path_cnt)
- *  - [in-out] rs_ctx: context for restarting operations
- *
- * Return value:
- *  - 0 on success
- *  - MBEDTLS_ERR_ECP_IN_PROGRESS otherwise
- */
-static int x509_crt_find_parent(
-                        mbedtls_x509_crt *child,
-                        mbedtls_x509_crt *trust_ca,
-                        mbedtls_x509_crt **parent,
-                        int *parent_is_trusted,
-                        int *signature_is_good,
-                        unsigned path_cnt,
-                        unsigned self_cnt,
-                        mbedtls_x509_crt_restart_ctx *rs_ctx )
-{
-    int ret;
-    mbedtls_x509_crt *search_list;
-
-    *parent_is_trusted = 1;
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-    /* restore then clear saved state if we have some stored */
-    if( rs_ctx != NULL && rs_ctx->parent_is_trusted != -1 )
-    {
-        *parent_is_trusted = rs_ctx->parent_is_trusted;
-        rs_ctx->parent_is_trusted = -1;
-    }
-#endif
-
-    while( 1 ) {
-        search_list = *parent_is_trusted ? trust_ca : child->next;
-
-        ret = x509_crt_find_parent_in( child, search_list,
-                                       parent, signature_is_good,
-                                       *parent_is_trusted,
-                                       path_cnt, self_cnt, rs_ctx );
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-        if( rs_ctx != NULL && ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-        {
-            /* save state */
-            rs_ctx->parent_is_trusted = *parent_is_trusted;
-            return( ret );
-        }
-#else
-        (void) ret;
-#endif
-
-        /* stop here if found or already in second iteration */
-        if( *parent != NULL || *parent_is_trusted == 0 )
-            break;
-
-        /* prepare second iteration */
-        *parent_is_trusted = 0;
-    }
-
-    /* extra precaution against mistakes in the caller */
-    if( *parent == NULL )
-    {
-        *parent_is_trusted = 0;
-        *signature_is_good = 0;
-    }
-
-    return( 0 );
-}
-
-/*
- * Check if an end-entity certificate is locally trusted
- *
- * Currently we require such certificates to be self-signed (actually only
- * check for self-issued as self-signatures are not checked)
- */
-static int x509_crt_check_ee_locally_trusted(
-                    mbedtls_x509_crt *crt,
-                    mbedtls_x509_crt *trust_ca )
-{
-    mbedtls_x509_crt *cur;
-
-    /* must be self-issued */
-    if( x509_name_cmp( &crt->issuer, &crt->subject ) != 0 )
-        return( -1 );
-
-    /* look for an exact match with trusted cert */
-    for( cur = trust_ca; cur != NULL; cur = cur->next )
-    {
-        if( crt->raw.len == cur->raw.len &&
-            memcmp( crt->raw.p, cur->raw.p, crt->raw.len ) == 0 )
-        {
-            return( 0 );
-        }
-    }
-
-    /* too bad */
-    return( -1 );
-}
-
-/*
- * Build and verify a certificate chain
- *
- * Given a peer-provided list of certificates EE, C1, ..., Cn and
- * a list of trusted certs R1, ... Rp, try to build and verify a chain
- *      EE, Ci1, ... Ciq [, Rj]
- * such that every cert in the chain is a child of the next one,
- * jumping to a trusted root as early as possible.
- *
- * Verify that chain and return it with flags for all issues found.
- *
- * Special cases:
- * - EE == Rj -> return a one-element list containing it
- * - EE, Ci1, ..., Ciq cannot be continued with a trusted root
- *   -> return that chain with NOT_TRUSTED set on Ciq
- *
- * Tests for (aspects of) this function should include at least:
- * - trusted EE
- * - EE -> trusted root
- * - EE -> intermediate CA -> trusted root
- * - if relevant: EE untrusted
- * - if relevant: EE -> intermediate, untrusted
- * with the aspect under test checked at each relevant level (EE, int, root).
- * For some aspects longer chains are required, but usually length 2 is
- * enough (but length 1 is not in general).
- *
- * Arguments:
- *  - [in] crt: the cert list EE, C1, ..., Cn
- *  - [in] trust_ca: the trusted list R1, ..., Rp
- *  - [in] ca_crl, profile: as in verify_with_profile()
- *  - [out] ver_chain: the built and verified chain
- *      Only valid when return value is 0, may contain garbage otherwise!
- *      Restart note: need not be the same when calling again to resume.
- *  - [in-out] rs_ctx: context for restarting operations
- *
- * Return value:
- *  - non-zero if the chain could not be fully built and examined
- *  - 0 is the chain was successfully built and examined,
- *      even if it was found to be invalid
- */
-static int x509_crt_verify_chain(
-                mbedtls_x509_crt *crt,
-                mbedtls_x509_crt *trust_ca,
-                mbedtls_x509_crl *ca_crl,
-                mbedtls_x509_crt_ca_cb_t f_ca_cb,
-                void *p_ca_cb,
-                const mbedtls_x509_crt_profile *profile,
-                mbedtls_x509_crt_verify_chain *ver_chain,
-                mbedtls_x509_crt_restart_ctx *rs_ctx )
-{
-    /* Don't initialize any of those variables here, so that the compiler can
-     * catch potential issues with jumping ahead when restarting */
-    int ret;
-    uint32_t *flags;
-    mbedtls_x509_crt_verify_chain_item *cur;
-    mbedtls_x509_crt *child;
-    mbedtls_x509_crt *parent;
-    int parent_is_trusted;
-    int child_is_trusted;
-    int signature_is_good;
-    unsigned self_cnt;
-    mbedtls_x509_crt *cur_trust_ca = NULL;
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-    /* resume if we had an operation in progress */
-    if( rs_ctx != NULL && rs_ctx->in_progress == x509_crt_rs_find_parent )
-    {
-        /* restore saved state */
-        *ver_chain = rs_ctx->ver_chain; /* struct copy */
-        self_cnt = rs_ctx->self_cnt;
-
-        /* restore derived state */
-        cur = &ver_chain->items[ver_chain->len - 1];
-        child = cur->crt;
-        flags = &cur->flags;
-
-        goto find_parent;
-    }
-#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
-
-    child = crt;
-    self_cnt = 0;
-    parent_is_trusted = 0;
-    child_is_trusted = 0;
-
-    while( 1 ) {
-        /* Add certificate to the verification chain */
-        cur = &ver_chain->items[ver_chain->len];
-        cur->crt = child;
-        cur->flags = 0;
-        ver_chain->len++;
-        flags = &cur->flags;
-
-        /* Check time-validity (all certificates) */
-        if( mbedtls_x509_time_is_past( &child->valid_to ) )
-            *flags |= MBEDTLS_X509_BADCERT_EXPIRED;
-
-        if( mbedtls_x509_time_is_future( &child->valid_from ) )
-            *flags |= MBEDTLS_X509_BADCERT_FUTURE;
-
-        /* Stop here for trusted roots (but not for trusted EE certs) */
-        if( child_is_trusted )
-            return( 0 );
-
-        /* Check signature algorithm: MD & PK algs */
-        if( x509_profile_check_md_alg( profile, child->sig_md ) != 0 )
-            *flags |= MBEDTLS_X509_BADCERT_BAD_MD;
-
-        if( x509_profile_check_pk_alg( profile, child->sig_pk ) != 0 )
-            *flags |= MBEDTLS_X509_BADCERT_BAD_PK;
-
-        /* Special case: EE certs that are locally trusted */
-        if( ver_chain->len == 1 &&
-            x509_crt_check_ee_locally_trusted( child, trust_ca ) == 0 )
-        {
-            return( 0 );
-        }
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-find_parent:
-#endif
-
-        /* Obtain list of potential trusted signers from CA callback,
-         * or use statically provided list. */
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-        if( f_ca_cb != NULL )
-        {
-            mbedtls_x509_crt_free( ver_chain->trust_ca_cb_result );
-            mbedtls_free( ver_chain->trust_ca_cb_result );
-            ver_chain->trust_ca_cb_result = NULL;
-
-            ret = f_ca_cb( p_ca_cb, child, &ver_chain->trust_ca_cb_result );
-            if( ret != 0 )
-                return( MBEDTLS_ERR_X509_FATAL_ERROR );
-
-            cur_trust_ca = ver_chain->trust_ca_cb_result;
-        }
-        else
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-        {
-            ((void) f_ca_cb);
-            ((void) p_ca_cb);
-            cur_trust_ca = trust_ca;
-        }
-
-        /* Look for a parent in trusted CAs or up the chain */
-        ret = x509_crt_find_parent( child, cur_trust_ca, &parent,
-                                       &parent_is_trusted, &signature_is_good,
-                                       ver_chain->len - 1, self_cnt, rs_ctx );
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-        if( rs_ctx != NULL && ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-        {
-            /* save state */
-            rs_ctx->in_progress = x509_crt_rs_find_parent;
-            rs_ctx->self_cnt = self_cnt;
-            rs_ctx->ver_chain = *ver_chain; /* struct copy */
-
-            return( ret );
-        }
-#else
-        (void) ret;
-#endif
-
-        /* No parent? We're done here */
-        if( parent == NULL )
-        {
-            *flags |= MBEDTLS_X509_BADCERT_NOT_TRUSTED;
-            return( 0 );
-        }
-
-        /* Count intermediate self-issued (not necessarily self-signed) certs.
-         * These can occur with some strategies for key rollover, see [SIRO],
-         * and should be excluded from max_pathlen checks. */
-        if( ver_chain->len != 1 &&
-            x509_name_cmp( &child->issuer, &child->subject ) == 0 )
-        {
-            self_cnt++;
-        }
-
-        /* path_cnt is 0 for the first intermediate CA,
-         * and if parent is trusted it's not an intermediate CA */
-        if( ! parent_is_trusted &&
-            ver_chain->len > MBEDTLS_X509_MAX_INTERMEDIATE_CA )
-        {
-            /* return immediately to avoid overflow the chain array */
-            return( MBEDTLS_ERR_X509_FATAL_ERROR );
-        }
-
-        /* signature was checked while searching parent */
-        if( ! signature_is_good )
-            *flags |= MBEDTLS_X509_BADCERT_NOT_TRUSTED;
-
-        /* check size of signing key */
-        if( x509_profile_check_key( profile, &parent->pk ) != 0 )
-            *flags |= MBEDTLS_X509_BADCERT_BAD_KEY;
-
-#if defined(MBEDTLS_X509_CRL_PARSE_C)
-        /* Check trusted CA's CRL for the given crt */
-        *flags |= x509_crt_verifycrl( child, parent, ca_crl, profile );
-#else
-        (void) ca_crl;
-#endif
-
-        /* prepare for next iteration */
-        child = parent;
-        parent = NULL;
-        child_is_trusted = parent_is_trusted;
-        signature_is_good = 0;
-    }
-}
-
-/*
- * Check for CN match
- */
-static int x509_crt_check_cn( const mbedtls_x509_buf *name,
-                              const char *cn, size_t cn_len )
-{
-    /* try exact match */
-    if( name->len == cn_len &&
-        x509_memcasecmp( cn, name->p, cn_len ) == 0 )
-    {
-        return( 0 );
-    }
-
-    /* try wildcard match */
-    if( x509_check_wildcard( cn, name ) == 0 )
-    {
-        return( 0 );
-    }
-
-    return( -1 );
-}
-
-/*
- * Verify the requested CN - only call this if cn is not NULL!
- */
-static void x509_crt_verify_name( const mbedtls_x509_crt *crt,
-                                  const char *cn,
-                                  uint32_t *flags )
-{
-    const mbedtls_x509_name *name;
-    const mbedtls_x509_sequence *cur;
-    size_t cn_len = strlen( cn );
-
-    if( crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME )
-    {
-        for( cur = &crt->subject_alt_names; cur != NULL; cur = cur->next )
-        {
-            if( x509_crt_check_cn( &cur->buf, cn, cn_len ) == 0 )
-                break;
-        }
-
-        if( cur == NULL )
-            *flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH;
-    }
-    else
-    {
-        for( name = &crt->subject; name != NULL; name = name->next )
-        {
-            if( MBEDTLS_OID_CMP( MBEDTLS_OID_AT_CN, &name->oid ) == 0 &&
-                x509_crt_check_cn( &name->val, cn, cn_len ) == 0 )
-            {
-                break;
-            }
-        }
-
-        if( name == NULL )
-            *flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH;
-    }
-}
-
-/*
- * Merge the flags for all certs in the chain, after calling callback
- */
-static int x509_crt_merge_flags_with_cb(
-           uint32_t *flags,
-           const mbedtls_x509_crt_verify_chain *ver_chain,
-           int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-           void *p_vrfy )
-{
-    int ret;
-    unsigned i;
-    uint32_t cur_flags;
-    const mbedtls_x509_crt_verify_chain_item *cur;
-
-    for( i = ver_chain->len; i != 0; --i )
-    {
-        cur = &ver_chain->items[i-1];
-        cur_flags = cur->flags;
-
-        if( NULL != f_vrfy )
-            if( ( ret = f_vrfy( p_vrfy, cur->crt, (int) i-1, &cur_flags ) ) != 0 )
-                return( ret );
-
-        *flags |= cur_flags;
-    }
-
-    return( 0 );
-}
-
-/*
- * Verify the certificate validity, with profile, restartable version
- *
- * This function:
- *  - checks the requested CN (if any)
- *  - checks the type and size of the EE cert's key,
- *    as that isn't done as part of chain building/verification currently
- *  - builds and verifies the chain
- *  - then calls the callback and merges the flags
- *
- * The parameters pairs `trust_ca`, `ca_crl` and `f_ca_cb`, `p_ca_cb`
- * are mutually exclusive: If `f_ca_cb != NULL`, it will be used by the
- * verification routine to search for trusted signers, and CRLs will
- * be disabled. Otherwise, `trust_ca` will be used as the static list
- * of trusted signers, and `ca_crl` will be use as the static list
- * of CRLs.
- */
-static int x509_crt_verify_restartable_ca_cb( mbedtls_x509_crt *crt,
-                     mbedtls_x509_crt *trust_ca,
-                     mbedtls_x509_crl *ca_crl,
-                     mbedtls_x509_crt_ca_cb_t f_ca_cb,
-                     void *p_ca_cb,
-                     const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy,
-                     mbedtls_x509_crt_restart_ctx *rs_ctx )
-{
-    int ret;
-    mbedtls_pk_type_t pk_type;
-    mbedtls_x509_crt_verify_chain ver_chain;
-    uint32_t ee_flags;
-
-    *flags = 0;
-    ee_flags = 0;
-    x509_crt_verify_chain_reset( &ver_chain );
-
-    if( profile == NULL )
-    {
-        ret = MBEDTLS_ERR_X509_BAD_INPUT_DATA;
-        goto exit;
-    }
-
-    /* check name if requested */
-    if( cn != NULL )
-        x509_crt_verify_name( crt, cn, &ee_flags );
-
-    /* Check the type and size of the key */
-    pk_type = mbedtls_pk_get_type( &crt->pk );
-
-    if( x509_profile_check_pk_alg( profile, pk_type ) != 0 )
-        ee_flags |= MBEDTLS_X509_BADCERT_BAD_PK;
-
-    if( x509_profile_check_key( profile, &crt->pk ) != 0 )
-        ee_flags |= MBEDTLS_X509_BADCERT_BAD_KEY;
-
-    /* Check the chain */
-    ret = x509_crt_verify_chain( crt, trust_ca, ca_crl,
-                                 f_ca_cb, p_ca_cb, profile,
-                                 &ver_chain, rs_ctx );
-
-    if( ret != 0 )
-        goto exit;
-
-    /* Merge end-entity flags */
-    ver_chain.items[0].flags |= ee_flags;
-
-    /* Build final flags, calling callback on the way if any */
-    ret = x509_crt_merge_flags_with_cb( flags, &ver_chain, f_vrfy, p_vrfy );
-
-exit:
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    mbedtls_x509_crt_free( ver_chain.trust_ca_cb_result );
-    mbedtls_free( ver_chain.trust_ca_cb_result );
-    ver_chain.trust_ca_cb_result = NULL;
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-    if( rs_ctx != NULL && ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
-        mbedtls_x509_crt_restart_free( rs_ctx );
-#endif
-
-    /* prevent misuse of the vrfy callback - VERIFY_FAILED would be ignored by
-     * the SSL module for authmode optional, but non-zero return from the
-     * callback means a fatal error so it shouldn't be ignored */
-    if( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED )
-        ret = MBEDTLS_ERR_X509_FATAL_ERROR;
-
-    if( ret != 0 )
-    {
-        *flags = (uint32_t) -1;
-        return( ret );
-    }
-
-    if( *flags != 0 )
-        return( MBEDTLS_ERR_X509_CERT_VERIFY_FAILED );
-
-    return( 0 );
-}
-
-
-/*
- * Verify the certificate validity (default profile, not restartable)
- */
-int mbedtls_x509_crt_verify( mbedtls_x509_crt *crt,
-                     mbedtls_x509_crt *trust_ca,
-                     mbedtls_x509_crl *ca_crl,
-                     const char *cn, uint32_t *flags,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy )
-{
-    return( x509_crt_verify_restartable_ca_cb( crt, trust_ca, ca_crl,
-                                         NULL, NULL,
-                                         &mbedtls_x509_crt_profile_default,
-                                         cn, flags,
-                                         f_vrfy, p_vrfy, NULL ) );
-}
-
-/*
- * Verify the certificate validity (user-chosen profile, not restartable)
- */
-int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt,
-                     mbedtls_x509_crt *trust_ca,
-                     mbedtls_x509_crl *ca_crl,
-                     const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy )
-{
-    return( x509_crt_verify_restartable_ca_cb( crt, trust_ca, ca_crl,
-                                                 NULL, NULL,
-                                                 profile, cn, flags,
-                                                 f_vrfy, p_vrfy, NULL ) );
-}
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-/*
- * Verify the certificate validity (user-chosen profile, CA callback,
- *                                  not restartable).
- */
-int mbedtls_x509_crt_verify_with_ca_cb( mbedtls_x509_crt *crt,
-                     mbedtls_x509_crt_ca_cb_t f_ca_cb,
-                     void *p_ca_cb,
-                     const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy )
-{
-    return( x509_crt_verify_restartable_ca_cb( crt, NULL, NULL,
-                                                 f_ca_cb, p_ca_cb,
-                                                 profile, cn, flags,
-                                                 f_vrfy, p_vrfy, NULL ) );
-}
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-
-int mbedtls_x509_crt_verify_restartable( mbedtls_x509_crt *crt,
-                     mbedtls_x509_crt *trust_ca,
-                     mbedtls_x509_crl *ca_crl,
-                     const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy,
-                     mbedtls_x509_crt_restart_ctx *rs_ctx )
-{
-    return( x509_crt_verify_restartable_ca_cb( crt, trust_ca, ca_crl,
-                                                 NULL, NULL,
-                                                 profile, cn, flags,
-                                                 f_vrfy, p_vrfy, rs_ctx ) );
-}
-
-
-/*
- * Initialize a certificate chain
- */
-void mbedtls_x509_crt_init( mbedtls_x509_crt *crt )
-{
-    memset( crt, 0, sizeof(mbedtls_x509_crt) );
-}
-
-/*
- * Unallocate all certificate data
- */
-void mbedtls_x509_crt_free( mbedtls_x509_crt *crt )
-{
-    mbedtls_x509_crt *cert_cur = crt;
-    mbedtls_x509_crt *cert_prv;
-    mbedtls_x509_name *name_cur;
-    mbedtls_x509_name *name_prv;
-    mbedtls_x509_sequence *seq_cur;
-    mbedtls_x509_sequence *seq_prv;
-
-    if( crt == NULL )
-        return;
-
-    do
-    {
-        mbedtls_pk_free( &cert_cur->pk );
-
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
-        mbedtls_free( cert_cur->sig_opts );
-#endif
-
-        name_cur = cert_cur->issuer.next;
-        while( name_cur != NULL )
-        {
-            name_prv = name_cur;
-            name_cur = name_cur->next;
-            mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) );
-            mbedtls_free( name_prv );
-        }
-
-        name_cur = cert_cur->subject.next;
-        while( name_cur != NULL )
-        {
-            name_prv = name_cur;
-            name_cur = name_cur->next;
-            mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) );
-            mbedtls_free( name_prv );
-        }
-
-        seq_cur = cert_cur->ext_key_usage.next;
-        while( seq_cur != NULL )
-        {
-            seq_prv = seq_cur;
-            seq_cur = seq_cur->next;
-            mbedtls_platform_zeroize( seq_prv,
-                                      sizeof( mbedtls_x509_sequence ) );
-            mbedtls_free( seq_prv );
-        }
-
-        seq_cur = cert_cur->subject_alt_names.next;
-        while( seq_cur != NULL )
-        {
-            seq_prv = seq_cur;
-            seq_cur = seq_cur->next;
-            mbedtls_platform_zeroize( seq_prv,
-                                      sizeof( mbedtls_x509_sequence ) );
-            mbedtls_free( seq_prv );
-        }
-
-        if( cert_cur->raw.p != NULL && cert_cur->own_buffer )
-        {
-            mbedtls_platform_zeroize( cert_cur->raw.p, cert_cur->raw.len );
-            mbedtls_free( cert_cur->raw.p );
-        }
-
-        cert_cur = cert_cur->next;
-    }
-    while( cert_cur != NULL );
-
-    cert_cur = crt;
-    do
-    {
-        cert_prv = cert_cur;
-        cert_cur = cert_cur->next;
-
-        mbedtls_platform_zeroize( cert_prv, sizeof( mbedtls_x509_crt ) );
-        if( cert_prv != crt )
-            mbedtls_free( cert_prv );
-    }
-    while( cert_cur != NULL );
-}
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-/*
- * Initialize a restart context
- */
-void mbedtls_x509_crt_restart_init( mbedtls_x509_crt_restart_ctx *ctx )
-{
-    mbedtls_pk_restart_init( &ctx->pk );
-
-    ctx->parent = NULL;
-    ctx->fallback_parent = NULL;
-    ctx->fallback_signature_is_good = 0;
-
-    ctx->parent_is_trusted = -1;
-
-    ctx->in_progress = x509_crt_rs_none;
-    ctx->self_cnt = 0;
-    x509_crt_verify_chain_reset( &ctx->ver_chain );
-}
-
-/*
- * Free the components of a restart context
- */
-void mbedtls_x509_crt_restart_free( mbedtls_x509_crt_restart_ctx *ctx )
-{
-    if( ctx == NULL )
-        return;
-
-    mbedtls_pk_restart_free( &ctx->pk );
-    mbedtls_x509_crt_restart_init( ctx );
-}
-#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
-
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
diff --git a/library/x509_csr.c b/library/x509_csr.c
deleted file mode 100644
index c8c08c8..0000000
--- a/library/x509_csr.c
+++ /dev/null
@@ -1,419 +0,0 @@
-/*
- *  X.509 Certificate Signing Request (CSR) parsing
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- *  The ITU-T X.509 standard defines a certificate format for PKI.
- *
- *  http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
- *  http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
- *  http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
- *
- *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
- *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_X509_CSR_PARSE_C)
-
-#include "mbedtls/x509_csr.h"
-#include "mbedtls/oid.h"
-#include "mbedtls/platform_util.h"
-
-#include <string.h>
-
-#if defined(MBEDTLS_PEM_PARSE_C)
-#include "mbedtls/pem.h"
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#include <stdio.h>
-#define mbedtls_free       free
-#define mbedtls_calloc    calloc
-#define mbedtls_snprintf   snprintf
-#endif
-
-#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32)
-#include <stdio.h>
-#endif
-
-/*
- *  Version  ::=  INTEGER  {  v1(0)  }
- */
-static int x509_csr_get_version( unsigned char **p,
-                             const unsigned char *end,
-                             int *ver )
-{
-    int ret;
-
-    if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
-        {
-            *ver = 0;
-            return( 0 );
-        }
-
-        return( MBEDTLS_ERR_X509_INVALID_VERSION + ret );
-    }
-
-    return( 0 );
-}
-
-/*
- * Parse a CSR in DER format
- */
-int mbedtls_x509_csr_parse_der( mbedtls_x509_csr *csr,
-                        const unsigned char *buf, size_t buflen )
-{
-    int ret;
-    size_t len;
-    unsigned char *p, *end;
-    mbedtls_x509_buf sig_params;
-
-    memset( &sig_params, 0, sizeof( mbedtls_x509_buf ) );
-
-    /*
-     * Check for valid input
-     */
-    if( csr == NULL || buf == NULL || buflen == 0 )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    mbedtls_x509_csr_init( csr );
-
-    /*
-     * first copy the raw DER data
-     */
-    p = mbedtls_calloc( 1, len = buflen );
-
-    if( p == NULL )
-        return( MBEDTLS_ERR_X509_ALLOC_FAILED );
-
-    memcpy( p, buf, buflen );
-
-    csr->raw.p = p;
-    csr->raw.len = len;
-    end = p + len;
-
-    /*
-     *  CertificationRequest ::= SEQUENCE {
-     *       certificationRequestInfo CertificationRequestInfo,
-     *       signatureAlgorithm AlgorithmIdentifier,
-     *       signature          BIT STRING
-     *  }
-     */
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT );
-    }
-
-    if( len != (size_t) ( end - p ) )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-    }
-
-    /*
-     *  CertificationRequestInfo ::= SEQUENCE {
-     */
-    csr->cri.p = p;
-
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
-    }
-
-    end = p + len;
-    csr->cri.len = end - csr->cri.p;
-
-    /*
-     *  Version  ::=  INTEGER {  v1(0) }
-     */
-    if( ( ret = x509_csr_get_version( &p, end, &csr->version ) ) != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( ret );
-    }
-
-    if( csr->version != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( MBEDTLS_ERR_X509_UNKNOWN_VERSION );
-    }
-
-    csr->version++;
-
-    /*
-     *  subject               Name
-     */
-    csr->subject_raw.p = p;
-
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
-    }
-
-    if( ( ret = mbedtls_x509_get_name( &p, p + len, &csr->subject ) ) != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( ret );
-    }
-
-    csr->subject_raw.len = p - csr->subject_raw.p;
-
-    /*
-     *  subjectPKInfo SubjectPublicKeyInfo
-     */
-    if( ( ret = mbedtls_pk_parse_subpubkey( &p, end, &csr->pk ) ) != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( ret );
-    }
-
-    /*
-     *  attributes    [0] Attributes
-     *
-     *  The list of possible attributes is open-ended, though RFC 2985
-     *  (PKCS#9) defines a few in section 5.4. We currently don't support any,
-     *  so we just ignore them. This is a safe thing to do as the worst thing
-     *  that could happen is that we issue a certificate that does not match
-     *  the requester's expectations - this cannot cause a violation of our
-     *  signature policies.
-     */
-    if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
-            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_CONTEXT_SPECIFIC ) ) != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
-    }
-
-    p += len;
-
-    end = csr->raw.p + csr->raw.len;
-
-    /*
-     *  signatureAlgorithm   AlgorithmIdentifier,
-     *  signature            BIT STRING
-     */
-    if( ( ret = mbedtls_x509_get_alg( &p, end, &csr->sig_oid, &sig_params ) ) != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( ret );
-    }
-
-    if( ( ret = mbedtls_x509_get_sig_alg( &csr->sig_oid, &sig_params,
-                                  &csr->sig_md, &csr->sig_pk,
-                                  &csr->sig_opts ) ) != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG );
-    }
-
-    if( ( ret = mbedtls_x509_get_sig( &p, end, &csr->sig ) ) != 0 )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( ret );
-    }
-
-    if( p != end )
-    {
-        mbedtls_x509_csr_free( csr );
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT +
-                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
-    }
-
-    return( 0 );
-}
-
-/*
- * Parse a CSR, allowing for PEM or raw DER encoding
- */
-int mbedtls_x509_csr_parse( mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen )
-{
-#if defined(MBEDTLS_PEM_PARSE_C)
-    int ret;
-    size_t use_len;
-    mbedtls_pem_context pem;
-#endif
-
-    /*
-     * Check for valid input
-     */
-    if( csr == NULL || buf == NULL || buflen == 0 )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-#if defined(MBEDTLS_PEM_PARSE_C)
-    /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
-    if( buf[buflen - 1] == '\0' )
-    {
-        mbedtls_pem_init( &pem );
-        ret = mbedtls_pem_read_buffer( &pem,
-                                       "-----BEGIN CERTIFICATE REQUEST-----",
-                                       "-----END CERTIFICATE REQUEST-----",
-                                       buf, NULL, 0, &use_len );
-        if( ret == MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
-        {
-            ret = mbedtls_pem_read_buffer( &pem,
-                                           "-----BEGIN NEW CERTIFICATE REQUEST-----",
-                                           "-----END NEW CERTIFICATE REQUEST-----",
-                                           buf, NULL, 0, &use_len );
-        }
-
-        if( ret == 0 )
-        {
-            /*
-             * Was PEM encoded, parse the result
-             */
-            ret = mbedtls_x509_csr_parse_der( csr, pem.buf, pem.buflen );
-        }
-
-        mbedtls_pem_free( &pem );
-        if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
-            return( ret );
-    }
-#endif /* MBEDTLS_PEM_PARSE_C */
-    return( mbedtls_x509_csr_parse_der( csr, buf, buflen ) );
-}
-
-#if defined(MBEDTLS_FS_IO)
-/*
- * Load a CSR into the structure
- */
-int mbedtls_x509_csr_parse_file( mbedtls_x509_csr *csr, const char *path )
-{
-    int ret;
-    size_t n;
-    unsigned char *buf;
-
-    if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
-        return( ret );
-
-    ret = mbedtls_x509_csr_parse( csr, buf, n );
-
-    mbedtls_platform_zeroize( buf, n );
-    mbedtls_free( buf );
-
-    return( ret );
-}
-#endif /* MBEDTLS_FS_IO */
-
-#define BEFORE_COLON    14
-#define BC              "14"
-/*
- * Return an informational string about the CSR.
- */
-int mbedtls_x509_csr_info( char *buf, size_t size, const char *prefix,
-                   const mbedtls_x509_csr *csr )
-{
-    int ret;
-    size_t n;
-    char *p;
-    char key_size_str[BEFORE_COLON];
-
-    p = buf;
-    n = size;
-
-    ret = mbedtls_snprintf( p, n, "%sCSR version   : %d",
-                               prefix, csr->version );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n%ssubject name  : ", prefix );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-    ret = mbedtls_x509_dn_gets( p, n, &csr->subject );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_snprintf( p, n, "\n%ssigned using  : ", prefix );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    ret = mbedtls_x509_sig_alg_gets( p, n, &csr->sig_oid, csr->sig_pk, csr->sig_md,
-                             csr->sig_opts );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    if( ( ret = mbedtls_x509_key_size_helper( key_size_str, BEFORE_COLON,
-                                      mbedtls_pk_get_name( &csr->pk ) ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    ret = mbedtls_snprintf( p, n, "\n%s%-" BC "s: %d bits\n", prefix, key_size_str,
-                          (int) mbedtls_pk_get_bitlen( &csr->pk ) );
-    MBEDTLS_X509_SAFE_SNPRINTF;
-
-    return( (int) ( size - n ) );
-}
-
-/*
- * Initialize a CSR
- */
-void mbedtls_x509_csr_init( mbedtls_x509_csr *csr )
-{
-    memset( csr, 0, sizeof(mbedtls_x509_csr) );
-}
-
-/*
- * Unallocate all CSR data
- */
-void mbedtls_x509_csr_free( mbedtls_x509_csr *csr )
-{
-    mbedtls_x509_name *name_cur;
-    mbedtls_x509_name *name_prv;
-
-    if( csr == NULL )
-        return;
-
-    mbedtls_pk_free( &csr->pk );
-
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
-    mbedtls_free( csr->sig_opts );
-#endif
-
-    name_cur = csr->subject.next;
-    while( name_cur != NULL )
-    {
-        name_prv = name_cur;
-        name_cur = name_cur->next;
-        mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) );
-        mbedtls_free( name_prv );
-    }
-
-    if( csr->raw.p != NULL )
-    {
-        mbedtls_platform_zeroize( csr->raw.p, csr->raw.len );
-        mbedtls_free( csr->raw.p );
-    }
-
-    mbedtls_platform_zeroize( csr, sizeof( mbedtls_x509_csr ) );
-}
-
-#endif /* MBEDTLS_X509_CSR_PARSE_C */
diff --git a/library/x509write_crt.c b/library/x509write_crt.c
deleted file mode 100644
index b6cb745..0000000
--- a/library/x509write_crt.c
+++ /dev/null
@@ -1,495 +0,0 @@
-/*
- *  X.509 certificate writing
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- * References:
- * - certificates: RFC 5280, updated by RFC 6818
- * - CSRs: PKCS#10 v1.7 aka RFC 2986
- * - attributes: PKCS#9 v2.0 aka RFC 2985
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_X509_CRT_WRITE_C)
-
-#include "mbedtls/x509_crt.h"
-#include "mbedtls/oid.h"
-#include "mbedtls/asn1write.h"
-#include "mbedtls/sha1.h"
-#include "mbedtls/platform_util.h"
-
-#include <string.h>
-
-#if defined(MBEDTLS_PEM_WRITE_C)
-#include "mbedtls/pem.h"
-#endif /* MBEDTLS_PEM_WRITE_C */
-
-void mbedtls_x509write_crt_init( mbedtls_x509write_cert *ctx )
-{
-    memset( ctx, 0, sizeof( mbedtls_x509write_cert ) );
-
-    mbedtls_mpi_init( &ctx->serial );
-    ctx->version = MBEDTLS_X509_CRT_VERSION_3;
-}
-
-void mbedtls_x509write_crt_free( mbedtls_x509write_cert *ctx )
-{
-    mbedtls_mpi_free( &ctx->serial );
-
-    mbedtls_asn1_free_named_data_list( &ctx->subject );
-    mbedtls_asn1_free_named_data_list( &ctx->issuer );
-    mbedtls_asn1_free_named_data_list( &ctx->extensions );
-
-    mbedtls_platform_zeroize( ctx, sizeof( mbedtls_x509write_cert ) );
-}
-
-void mbedtls_x509write_crt_set_version( mbedtls_x509write_cert *ctx, int version )
-{
-    ctx->version = version;
-}
-
-void mbedtls_x509write_crt_set_md_alg( mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg )
-{
-    ctx->md_alg = md_alg;
-}
-
-void mbedtls_x509write_crt_set_subject_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key )
-{
-    ctx->subject_key = key;
-}
-
-void mbedtls_x509write_crt_set_issuer_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key )
-{
-    ctx->issuer_key = key;
-}
-
-int mbedtls_x509write_crt_set_subject_name( mbedtls_x509write_cert *ctx,
-                                    const char *subject_name )
-{
-    return mbedtls_x509_string_to_names( &ctx->subject, subject_name );
-}
-
-int mbedtls_x509write_crt_set_issuer_name( mbedtls_x509write_cert *ctx,
-                                   const char *issuer_name )
-{
-    return mbedtls_x509_string_to_names( &ctx->issuer, issuer_name );
-}
-
-int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial )
-{
-    int ret;
-
-    if( ( ret = mbedtls_mpi_copy( &ctx->serial, serial ) ) != 0 )
-        return( ret );
-
-    return( 0 );
-}
-
-int mbedtls_x509write_crt_set_validity( mbedtls_x509write_cert *ctx, const char *not_before,
-                                const char *not_after )
-{
-    if( strlen( not_before ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 ||
-        strlen( not_after )  != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 )
-    {
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-    }
-    strncpy( ctx->not_before, not_before, MBEDTLS_X509_RFC5280_UTC_TIME_LEN );
-    strncpy( ctx->not_after , not_after , MBEDTLS_X509_RFC5280_UTC_TIME_LEN );
-    ctx->not_before[MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1] = 'Z';
-    ctx->not_after[MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1] = 'Z';
-
-    return( 0 );
-}
-
-int mbedtls_x509write_crt_set_extension( mbedtls_x509write_cert *ctx,
-                                 const char *oid, size_t oid_len,
-                                 int critical,
-                                 const unsigned char *val, size_t val_len )
-{
-    return mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len,
-                               critical, val, val_len );
-}
-
-int mbedtls_x509write_crt_set_basic_constraints( mbedtls_x509write_cert *ctx,
-                                         int is_ca, int max_pathlen )
-{
-    int ret;
-    unsigned char buf[9];
-    unsigned char *c = buf + sizeof(buf);
-    size_t len = 0;
-
-    memset( buf, 0, sizeof(buf) );
-
-    if( is_ca && max_pathlen > 127 )
-        return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
-
-    if( is_ca )
-    {
-        if( max_pathlen >= 0 )
-        {
-            MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, max_pathlen ) );
-        }
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( &c, buf, 1 ) );
-    }
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                MBEDTLS_ASN1_SEQUENCE ) );
-
-    return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_BASIC_CONSTRAINTS,
-                                        MBEDTLS_OID_SIZE( MBEDTLS_OID_BASIC_CONSTRAINTS ),
-                                        0, buf + sizeof(buf) - len, len );
-}
-
-#if defined(MBEDTLS_SHA1_C)
-int mbedtls_x509write_crt_set_subject_key_identifier( mbedtls_x509write_cert *ctx )
-{
-    int ret;
-    unsigned char buf[MBEDTLS_MPI_MAX_SIZE * 2 + 20]; /* tag, length + 2xMPI */
-    unsigned char *c = buf + sizeof(buf);
-    size_t len = 0;
-
-    memset( buf, 0, sizeof(buf) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, ctx->subject_key ) );
-
-    ret = mbedtls_sha1_ret( buf + sizeof( buf ) - len, len,
-                            buf + sizeof( buf ) - 20 );
-    if( ret != 0 )
-        return( ret );
-    c = buf + sizeof( buf ) - 20;
-    len = 20;
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_OCTET_STRING ) );
-
-    return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER,
-                                        MBEDTLS_OID_SIZE( MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER ),
-                                        0, buf + sizeof(buf) - len, len );
-}
-
-int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *ctx )
-{
-    int ret;
-    unsigned char buf[MBEDTLS_MPI_MAX_SIZE * 2 + 20]; /* tag, length + 2xMPI */
-    unsigned char *c = buf + sizeof( buf );
-    size_t len = 0;
-
-    memset( buf, 0, sizeof(buf) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, ctx->issuer_key ) );
-
-    ret = mbedtls_sha1_ret( buf + sizeof( buf ) - len, len,
-                            buf + sizeof( buf ) - 20 );
-    if( ret != 0 )
-        return( ret );
-    c = buf + sizeof( buf ) - 20;
-    len = 20;
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | 0 ) );
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                MBEDTLS_ASN1_SEQUENCE ) );
-
-    return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER,
-                                   MBEDTLS_OID_SIZE( MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER ),
-                                   0, buf + sizeof( buf ) - len, len );
-}
-#endif /* MBEDTLS_SHA1_C */
-
-int mbedtls_x509write_crt_set_key_usage( mbedtls_x509write_cert *ctx,
-                                         unsigned int key_usage )
-{
-    unsigned char buf[5], ku[2];
-    unsigned char *c;
-    int ret;
-    const unsigned int allowed_bits = MBEDTLS_X509_KU_DIGITAL_SIGNATURE |
-        MBEDTLS_X509_KU_NON_REPUDIATION   |
-        MBEDTLS_X509_KU_KEY_ENCIPHERMENT  |
-        MBEDTLS_X509_KU_DATA_ENCIPHERMENT |
-        MBEDTLS_X509_KU_KEY_AGREEMENT     |
-        MBEDTLS_X509_KU_KEY_CERT_SIGN     |
-        MBEDTLS_X509_KU_CRL_SIGN          |
-        MBEDTLS_X509_KU_ENCIPHER_ONLY     |
-        MBEDTLS_X509_KU_DECIPHER_ONLY;
-
-    /* Check that nothing other than the allowed flags is set */
-    if( ( key_usage & ~allowed_bits ) != 0 )
-        return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE );
-
-    c = buf + 5;
-    ku[0] = (unsigned char)( key_usage      );
-    ku[1] = (unsigned char)( key_usage >> 8 );
-    ret = mbedtls_asn1_write_named_bitstring( &c, buf, ku, 9 );
-
-    if( ret < 0 )
-        return( ret );
-    else if( ret < 3 || ret > 5 )
-        return( MBEDTLS_ERR_X509_INVALID_FORMAT );
-
-    ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_KEY_USAGE,
-                                       MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ),
-                                       1, c, (size_t)ret );
-    if( ret != 0 )
-        return( ret );
-
-    return( 0 );
-}
-
-int mbedtls_x509write_crt_set_ns_cert_type( mbedtls_x509write_cert *ctx,
-                                    unsigned char ns_cert_type )
-{
-    unsigned char buf[4];
-    unsigned char *c;
-    int ret;
-
-    c = buf + 4;
-
-    ret = mbedtls_asn1_write_named_bitstring( &c, buf, &ns_cert_type, 8 );
-    if( ret < 3 || ret > 4 )
-        return( ret );
-
-    ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE,
-                                       MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ),
-                                       0, c, (size_t)ret );
-    if( ret != 0 )
-        return( ret );
-
-    return( 0 );
-}
-
-static int x509_write_time( unsigned char **p, unsigned char *start,
-                            const char *t, size_t size )
-{
-    int ret;
-    size_t len = 0;
-
-    /*
-     * write MBEDTLS_ASN1_UTC_TIME if year < 2050 (2 bytes shorter)
-     */
-    if( t[0] == '2' && t[1] == '0' && t[2] < '5' )
-    {
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
-                                             (const unsigned char *) t + 2,
-                                             size - 2 ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_UTC_TIME ) );
-    }
-    else
-    {
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
-                                                  (const unsigned char *) t,
-                                                  size ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_GENERALIZED_TIME ) );
-    }
-
-    return( (int) len );
-}
-
-int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng )
-{
-    int ret;
-    const char *sig_oid;
-    size_t sig_oid_len = 0;
-    unsigned char *c, *c2;
-    unsigned char hash[64];
-    unsigned char sig[MBEDTLS_MPI_MAX_SIZE];
-    unsigned char tmp_buf[2048];
-    size_t sub_len = 0, pub_len = 0, sig_and_oid_len = 0, sig_len;
-    size_t len = 0;
-    mbedtls_pk_type_t pk_alg;
-
-    /*
-     * Prepare data to be signed in tmp_buf
-     */
-    c = tmp_buf + sizeof( tmp_buf );
-
-    /* Signature algorithm needed in TBS, and later for actual signature */
-
-    /* There's no direct way of extracting a signature algorithm
-     * (represented as an element of mbedtls_pk_type_t) from a PK instance. */
-    if( mbedtls_pk_can_do( ctx->issuer_key, MBEDTLS_PK_RSA ) )
-        pk_alg = MBEDTLS_PK_RSA;
-    else if( mbedtls_pk_can_do( ctx->issuer_key, MBEDTLS_PK_ECDSA ) )
-        pk_alg = MBEDTLS_PK_ECDSA;
-    else
-        return( MBEDTLS_ERR_X509_INVALID_ALG );
-
-    if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
-                                          &sig_oid, &sig_oid_len ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    /*
-     *  Extensions  ::=  SEQUENCE SIZE (1..MAX) OF Extension
-     */
-
-    /* Only for v3 */
-    if( ctx->version == MBEDTLS_X509_CRT_VERSION_3 )
-    {
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_extensions( &c, tmp_buf, ctx->extensions ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                           MBEDTLS_ASN1_SEQUENCE ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC |
-                                                           MBEDTLS_ASN1_CONSTRUCTED | 3 ) );
-    }
-
-    /*
-     *  SubjectPublicKeyInfo
-     */
-    MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_pk_write_pubkey_der( ctx->subject_key,
-                                                tmp_buf, c - tmp_buf ) );
-    c -= pub_len;
-    len += pub_len;
-
-    /*
-     *  Subject  ::=  Name
-     */
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->subject ) );
-
-    /*
-     *  Validity ::= SEQUENCE {
-     *       notBefore      Time,
-     *       notAfter       Time }
-     */
-    sub_len = 0;
-
-    MBEDTLS_ASN1_CHK_ADD( sub_len, x509_write_time( &c, tmp_buf, ctx->not_after,
-                                            MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) );
-
-    MBEDTLS_ASN1_CHK_ADD( sub_len, x509_write_time( &c, tmp_buf, ctx->not_before,
-                                            MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) );
-
-    len += sub_len;
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, sub_len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                    MBEDTLS_ASN1_SEQUENCE ) );
-
-    /*
-     *  Issuer  ::=  Name
-     */
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->issuer ) );
-
-    /*
-     *  Signature   ::=  AlgorithmIdentifier
-     */
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( &c, tmp_buf,
-                       sig_oid, strlen( sig_oid ), 0 ) );
-
-    /*
-     *  Serial   ::=  INTEGER
-     */
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, tmp_buf, &ctx->serial ) );
-
-    /*
-     *  Version  ::=  INTEGER  {  v1(0), v2(1), v3(2)  }
-     */
-
-    /* Can be omitted for v1 */
-    if( ctx->version != MBEDTLS_X509_CRT_VERSION_1 )
-    {
-        sub_len = 0;
-        MBEDTLS_ASN1_CHK_ADD( sub_len, mbedtls_asn1_write_int( &c, tmp_buf, ctx->version ) );
-        len += sub_len;
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, sub_len ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC |
-                                                           MBEDTLS_ASN1_CONSTRUCTED | 0 ) );
-    }
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                       MBEDTLS_ASN1_SEQUENCE ) );
-
-    /*
-     * Make signature
-     */
-    if( ( ret = mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c,
-                            len, hash ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    if( ( ret = mbedtls_pk_sign( ctx->issuer_key, ctx->md_alg, hash, 0, sig, &sig_len,
-                         f_rng, p_rng ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    /*
-     * Write data to output buffer
-     */
-    c2 = buf + size;
-    MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, buf,
-                                        sig_oid, sig_oid_len, sig, sig_len ) );
-
-    if( len > (size_t)( c2 - buf ) )
-        return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
-
-    c2 -= len;
-    memcpy( c2, c, len );
-
-    len += sig_and_oid_len;
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c2, buf, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c2, buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                 MBEDTLS_ASN1_SEQUENCE ) );
-
-    return( (int) len );
-}
-
-#define PEM_BEGIN_CRT           "-----BEGIN CERTIFICATE-----\n"
-#define PEM_END_CRT             "-----END CERTIFICATE-----\n"
-
-#if defined(MBEDTLS_PEM_WRITE_C)
-int mbedtls_x509write_crt_pem( mbedtls_x509write_cert *crt, unsigned char *buf, size_t size,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng )
-{
-    int ret;
-    unsigned char output_buf[4096];
-    size_t olen = 0;
-
-    if( ( ret = mbedtls_x509write_crt_der( crt, output_buf, sizeof(output_buf),
-                                   f_rng, p_rng ) ) < 0 )
-    {
-        return( ret );
-    }
-
-    if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CRT, PEM_END_CRT,
-                                  output_buf + sizeof(output_buf) - ret,
-                                  ret, buf, size, &olen ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_PEM_WRITE_C */
-
-#endif /* MBEDTLS_X509_CRT_WRITE_C */
diff --git a/library/x509write_csr.c b/library/x509write_csr.c
deleted file mode 100644
index 8dc39e7..0000000
--- a/library/x509write_csr.c
+++ /dev/null
@@ -1,287 +0,0 @@
-/*
- *  X.509 Certificate Signing Request writing
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-/*
- * References:
- * - CSRs: PKCS#10 v1.7 aka RFC 2986
- * - attributes: PKCS#9 v2.0 aka RFC 2985
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_X509_CSR_WRITE_C)
-
-#include "mbedtls/x509_csr.h"
-#include "mbedtls/oid.h"
-#include "mbedtls/asn1write.h"
-#include "mbedtls/platform_util.h"
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "psa/crypto.h"
-#include "mbedtls/psa_util.h"
-#endif
-
-#include <string.h>
-#include <stdlib.h>
-
-#if defined(MBEDTLS_PEM_WRITE_C)
-#include "mbedtls/pem.h"
-#endif
-
-void mbedtls_x509write_csr_init( mbedtls_x509write_csr *ctx )
-{
-    memset( ctx, 0, sizeof( mbedtls_x509write_csr ) );
-}
-
-void mbedtls_x509write_csr_free( mbedtls_x509write_csr *ctx )
-{
-    mbedtls_asn1_free_named_data_list( &ctx->subject );
-    mbedtls_asn1_free_named_data_list( &ctx->extensions );
-
-    mbedtls_platform_zeroize( ctx, sizeof( mbedtls_x509write_csr ) );
-}
-
-void mbedtls_x509write_csr_set_md_alg( mbedtls_x509write_csr *ctx, mbedtls_md_type_t md_alg )
-{
-    ctx->md_alg = md_alg;
-}
-
-void mbedtls_x509write_csr_set_key( mbedtls_x509write_csr *ctx, mbedtls_pk_context *key )
-{
-    ctx->key = key;
-}
-
-int mbedtls_x509write_csr_set_subject_name( mbedtls_x509write_csr *ctx,
-                                    const char *subject_name )
-{
-    return mbedtls_x509_string_to_names( &ctx->subject, subject_name );
-}
-
-int mbedtls_x509write_csr_set_extension( mbedtls_x509write_csr *ctx,
-                                 const char *oid, size_t oid_len,
-                                 const unsigned char *val, size_t val_len )
-{
-    return mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len,
-                               0, val, val_len );
-}
-
-int mbedtls_x509write_csr_set_key_usage( mbedtls_x509write_csr *ctx, unsigned char key_usage )
-{
-    unsigned char buf[4];
-    unsigned char *c;
-    int ret;
-
-    c = buf + 4;
-
-    ret = mbedtls_asn1_write_named_bitstring( &c, buf, &key_usage, 8 );
-    if( ret < 3 || ret > 4 )
-        return( ret );
-
-    ret = mbedtls_x509write_csr_set_extension( ctx, MBEDTLS_OID_KEY_USAGE,
-                                       MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ),
-                                       c, (size_t)ret );
-    if( ret != 0 )
-        return( ret );
-
-    return( 0 );
-}
-
-int mbedtls_x509write_csr_set_ns_cert_type( mbedtls_x509write_csr *ctx,
-                                    unsigned char ns_cert_type )
-{
-    unsigned char buf[4];
-    unsigned char *c;
-    int ret;
-
-    c = buf + 4;
-
-    ret = mbedtls_asn1_write_named_bitstring( &c, buf, &ns_cert_type, 8 );
-    if( ret < 3 || ret > 4 )
-        return( ret );
-
-    ret = mbedtls_x509write_csr_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE,
-                                       MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ),
-                                       c, (size_t)ret );
-    if( ret != 0 )
-        return( ret );
-
-    return( 0 );
-}
-
-int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng )
-{
-    int ret;
-    const char *sig_oid;
-    size_t sig_oid_len = 0;
-    unsigned char *c, *c2;
-    unsigned char hash[64];
-    unsigned char sig[MBEDTLS_MPI_MAX_SIZE];
-    unsigned char tmp_buf[2048];
-    size_t pub_len = 0, sig_and_oid_len = 0, sig_len;
-    size_t len = 0;
-    mbedtls_pk_type_t pk_alg;
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT;
-    size_t hash_len;
-    psa_algorithm_t hash_alg = mbedtls_psa_translate_md( ctx->md_alg );
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    /*
-     * Prepare data to be signed in tmp_buf
-     */
-    c = tmp_buf + sizeof( tmp_buf );
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_extensions( &c, tmp_buf, ctx->extensions ) );
-
-    if( len )
-    {
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                        MBEDTLS_ASN1_SEQUENCE ) );
-
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                        MBEDTLS_ASN1_SET ) );
-
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( &c, tmp_buf, MBEDTLS_OID_PKCS9_CSR_EXT_REQ,
-                                          MBEDTLS_OID_SIZE( MBEDTLS_OID_PKCS9_CSR_EXT_REQ ) ) );
-
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
-        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                        MBEDTLS_ASN1_SEQUENCE ) );
-    }
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                    MBEDTLS_ASN1_CONTEXT_SPECIFIC ) );
-
-    MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_pk_write_pubkey_der( ctx->key,
-                                                tmp_buf, c - tmp_buf ) );
-    c -= pub_len;
-    len += pub_len;
-
-    /*
-     *  Subject  ::=  Name
-     */
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->subject ) );
-
-    /*
-     *  Version  ::=  INTEGER  {  v1(0), v2(1), v3(2)  }
-     */
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, tmp_buf, 0 ) );
-
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                    MBEDTLS_ASN1_SEQUENCE ) );
-
-    /*
-     * Prepare signature
-     * Note: hash errors can happen only after an internal error
-     */
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( psa_hash_setup( &hash_operation, hash_alg ) != PSA_SUCCESS )
-        return( MBEDTLS_ERR_X509_FATAL_ERROR );
-
-    if( psa_hash_update( &hash_operation, c, len ) != PSA_SUCCESS )
-        return( MBEDTLS_ERR_X509_FATAL_ERROR );
-
-    if( psa_hash_finish( &hash_operation, hash, sizeof( hash ), &hash_len )
-        != PSA_SUCCESS )
-    {
-        return( MBEDTLS_ERR_X509_FATAL_ERROR );
-    }
-#else /* MBEDTLS_USE_PSA_CRYPTO */
-    mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c, len, hash );
-#endif
-    if( ( ret = mbedtls_pk_sign( ctx->key, ctx->md_alg, hash, 0, sig, &sig_len,
-                                 f_rng, p_rng ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    if( mbedtls_pk_can_do( ctx->key, MBEDTLS_PK_RSA ) )
-        pk_alg = MBEDTLS_PK_RSA;
-    else if( mbedtls_pk_can_do( ctx->key, MBEDTLS_PK_ECDSA ) )
-        pk_alg = MBEDTLS_PK_ECDSA;
-    else
-        return( MBEDTLS_ERR_X509_INVALID_ALG );
-
-    if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
-                                                &sig_oid, &sig_oid_len ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    /*
-     * Write data to output buffer
-     */
-    c2 = buf + size;
-    MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, buf,
-                                        sig_oid, sig_oid_len, sig, sig_len ) );
-
-    if( len > (size_t)( c2 - buf ) )
-        return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
-
-    c2 -= len;
-    memcpy( c2, c, len );
-
-    len += sig_and_oid_len;
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c2, buf, len ) );
-    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c2, buf, MBEDTLS_ASN1_CONSTRUCTED |
-                                                 MBEDTLS_ASN1_SEQUENCE ) );
-
-    return( (int) len );
-}
-
-#define PEM_BEGIN_CSR           "-----BEGIN CERTIFICATE REQUEST-----\n"
-#define PEM_END_CSR             "-----END CERTIFICATE REQUEST-----\n"
-
-#if defined(MBEDTLS_PEM_WRITE_C)
-int mbedtls_x509write_csr_pem( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng )
-{
-    int ret;
-    unsigned char output_buf[4096];
-    size_t olen = 0;
-
-    if( ( ret = mbedtls_x509write_csr_der( ctx, output_buf, sizeof(output_buf),
-                                   f_rng, p_rng ) ) < 0 )
-    {
-        return( ret );
-    }
-
-    if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CSR, PEM_END_CSR,
-                                  output_buf + sizeof(output_buf) - ret,
-                                  ret, buf, size, &olen ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    return( 0 );
-}
-#endif /* MBEDTLS_PEM_WRITE_C */
-
-#endif /* MBEDTLS_X509_CSR_WRITE_C */
diff --git a/programs/.gitignore b/programs/.gitignore
index 30489be..a6df08f 100644
--- a/programs/.gitignore
+++ b/programs/.gitignore
@@ -34,31 +34,14 @@
 random/gen_entropy
 random/gen_random_ctr_drbg
 random/gen_random_havege
-ssl/dtls_client
-ssl/dtls_server
-ssl/ssl_client1
-ssl/ssl_client2
-ssl/ssl_fork_server
-ssl/ssl_mail_client
-ssl/ssl_pthread_server
-ssl/ssl_server
-ssl/ssl_server2
-ssl/mini_client
 test/benchmark
 test/ecp-bench
 test/selftest
 test/cpp_dummy_build
-test/ssl_cert_test
-test/udp_proxy
 test/zeroize
 test/query_compile_time_config
 util/pem2der
 util/strerror
-x509/cert_app
-x509/cert_req
-x509/crl_app
-x509/cert_write
-x509/req_app
 
 # generated files
 pkey/keyfile.key
diff --git a/programs/CMakeLists.txt b/programs/CMakeLists.txt
index 661b120..b99b44e 100644
--- a/programs/CMakeLists.txt
+++ b/programs/CMakeLists.txt
@@ -3,7 +3,5 @@
 add_subdirectory(pkey)
 add_subdirectory(psa)
 add_subdirectory(random)
-add_subdirectory(ssl)
 add_subdirectory(test)
-add_subdirectory(x509)
 add_subdirectory(util)
diff --git a/programs/Makefile b/programs/Makefile
index 4f913bb..c7cc995 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -1,6 +1,5 @@
 
 # To compile on SunOS: add "-lsocket -lnsl" to LDFLAGS
-# To compile with PKCS11: add "-lpkcs11-helper" to LDFLAGS
 
 CFLAGS	?= -O2
 WARNING_CFLAGS ?= -Wall -W -Wdeclaration-after-statement
@@ -10,14 +9,12 @@
 LOCAL_CFLAGS = $(WARNING_CFLAGS) -I../include -D_FILE_OFFSET_BITS=64
 LOCAL_CXXFLAGS = $(WARNING_CXXFLAGS) -I../include -D_FILE_OFFSET_BITS=64
 LOCAL_LDFLAGS = -L../library 			\
-		-lmbedtls$(SHARED_SUFFIX)	\
-		-lmbedx509$(SHARED_SUFFIX)	\
 		-lmbedcrypto$(SHARED_SUFFIX)
 
 ifndef SHARED
-DEP=../library/libmbedcrypto.a ../library/libmbedx509.a ../library/libmbedtls.a
+DEP=../library/libmbedcrypto.a
 else
-DEP=../library/libmbedcrypto.$(DLEXT) ../library/libmbedx509.$(DLEXT) ../library/libmbedtls.$(DLEXT)
+DEP=../library/libmbedcrypto.$(DLEXT)
 endif
 
 ifdef DEBUG
@@ -42,11 +39,6 @@
 SHARED_SUFFIX=
 endif
 
-# Zlib shared library extensions:
-ifdef ZLIB
-LOCAL_LDFLAGS += -lz
-endif
-
 APPS = \
 	aes/aescrypt2$(EXEXT) \
 	aes/crypt_and_hash$(EXEXT) \
@@ -73,36 +65,17 @@
 	psa/crypto_examples$(EXEXT) \
 	psa/key_ladder_demo$(EXEXT) \
 	psa/psa_constant_names$(EXEXT) \
-	ssl/dtls_client$(EXEXT) \
-	ssl/dtls_server$(EXEXT) \
-	ssl/ssl_client1$(EXEXT) \
-	ssl/ssl_client2$(EXEXT) \
-	ssl/ssl_server$(EXEXT) \
-	ssl/ssl_server2$(EXEXT) \
-	ssl/ssl_fork_server$(EXEXT) \
-	ssl/mini_client$(EXEXT) \
-	ssl/ssl_mail_client$(EXEXT) \
 	random/gen_entropy$(EXEXT) \
 	random/gen_random_havege$(EXEXT) \
 	random/gen_random_ctr_drbg$(EXEXT) \
 	test/benchmark$(EXEXT) \
 	test/selftest$(EXEXT) \
-	test/udp_proxy$(EXEXT) \
 	test/zeroize$(EXEXT) \
 	test/query_compile_time_config$(EXEXT) \
 	util/pem2der$(EXEXT) \
 	util/strerror$(EXEXT) \
-	x509/cert_app$(EXEXT) \
-	x509/crl_app$(EXEXT) \
-	x509/cert_req$(EXEXT) \
-	x509/cert_write$(EXEXT) \
-	x509/req_app$(EXEXT) \
 # End of APPS
 
-ifdef PTHREAD
-APPS +=	ssl/ssl_pthread_server$(EXEXT)
-endif
-
 ifdef TEST_CPP
 APPS += test/cpp_dummy_build$(EXEXT)
 endif
@@ -236,46 +209,6 @@
 	echo "  CC    random/gen_random_ctr_drbg.c"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) random/gen_random_ctr_drbg.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
 
-ssl/dtls_client$(EXEXT): ssl/dtls_client.c $(DEP)
-	echo "  CC    ssl/dtls_client.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/dtls_client.c  $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-ssl/dtls_server$(EXEXT): ssl/dtls_server.c $(DEP)
-	echo "  CC    ssl/dtls_server.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/dtls_server.c  $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-ssl/ssl_client1$(EXEXT): ssl/ssl_client1.c $(DEP)
-	echo "  CC    ssl/ssl_client1.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_client1.c  $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-ssl/ssl_client2$(EXEXT): ssl/ssl_client2.c test/query_config.c $(DEP)
-	echo "  CC    ssl/ssl_client2.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_client2.c test/query_config.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-ssl/ssl_server$(EXEXT): ssl/ssl_server.c $(DEP)
-	echo "  CC    ssl/ssl_server.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_server.c   $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-ssl/ssl_server2$(EXEXT): ssl/ssl_server2.c test/query_config.c $(DEP)
-	echo "  CC    ssl/ssl_server2.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_server2.c test/query_config.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-ssl/ssl_fork_server$(EXEXT): ssl/ssl_fork_server.c $(DEP)
-	echo "  CC    ssl/ssl_fork_server.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_fork_server.c   $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-ssl/ssl_pthread_server$(EXEXT): ssl/ssl_pthread_server.c $(DEP)
-	echo "  CC    ssl/ssl_pthread_server.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_pthread_server.c   $(LOCAL_LDFLAGS) -lpthread  $(LDFLAGS) -o $@
-
-ssl/ssl_mail_client$(EXEXT): ssl/ssl_mail_client.c $(DEP)
-	echo "  CC    ssl/ssl_mail_client.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_mail_client.c   $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-ssl/mini_client$(EXEXT): ssl/mini_client.c $(DEP)
-	echo "  CC    ssl/mini_client.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/mini_client.c   $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
 test/benchmark$(EXEXT): test/benchmark.c $(DEP)
 	echo "  CC    test/benchmark.c"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) test/benchmark.c   $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
@@ -288,10 +221,6 @@
 	echo "  CC    test/selftest.c"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) test/selftest.c    $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
 
-test/udp_proxy$(EXEXT): test/udp_proxy.c $(DEP)
-	echo "  CC    test/udp_proxy.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) test/udp_proxy.c    $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
 test/zeroize$(EXEXT): test/zeroize.c $(DEP)
 	echo "  CC    test/zeroize.c"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) test/zeroize.c    $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
@@ -308,26 +237,6 @@
 	echo "  CC    util/strerror.c"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) util/strerror.c    $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
 
-x509/cert_app$(EXEXT): x509/cert_app.c $(DEP)
-	echo "  CC    x509/cert_app.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) x509/cert_app.c    $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-x509/cert_write$(EXEXT): x509/cert_write.c $(DEP)
-	echo "  CC    x509/cert_write.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) x509/cert_write.c    $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-x509/crl_app$(EXEXT): x509/crl_app.c $(DEP)
-	echo "  CC    x509/crl_app.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) x509/crl_app.c    $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-x509/cert_req$(EXEXT): x509/cert_req.c $(DEP)
-	echo "  CC    x509/cert_req.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) x509/cert_req.c    $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
-x509/req_app$(EXEXT): x509/req_app.c $(DEP)
-	echo "  CC    x509/req_app.c"
-	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) x509/req_app.c    $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
-
 psa/crypto_examples$(EXEXT): psa/crypto_examples.c $(DEP)
 	echo "  CC    psa/crypto_examples.c"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) psa/crypto_examples.c    $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
diff --git a/programs/README.md b/programs/README.md
index 44edd61..977e26c 100644
--- a/programs/README.md
+++ b/programs/README.md
@@ -61,36 +61,6 @@
 
 * [`random/gen_random_havege.c`](random/gen_random_havege.c): demonstrates the HAVEGE entropy collector.
 
-## SSL/TLS examples
-
-### SSL/TLS sample applications
-
-* [`ssl/dtls_client.c`](ssl/dtls_client.c): a simple DTLS client program, which sends one datagram to the server and reads one datagram in response.
-
-* [`ssl/dtls_server.c`](ssl/dtls_server.c): a simple DTLS server program, which expects one datagram from the client and writes one datagram in response. This program supports DTLS cookies for hello verification.
-
-* [`ssl/mini_client.c`](ssl/mini_client.c): a minimalistic SSL client, which sends a short string and disconnects. This is primarily intended as a benchmark; for a better example of a typical TLS client, see `ssl/ssl_client1.c`.
-
-* [`ssl/ssl_client1.c`](ssl/ssl_client1.c): a simple HTTPS client that sends a fixed request and displays the response.
-
-* [`ssl/ssl_fork_server.c`](ssl/ssl_fork_server.c): a simple HTTPS server using one process per client to send a fixed response. This program requires a Unix/POSIX environment implementing the `fork` system call.
-
-* [`ssl/ssl_mail_client.c`](ssl/ssl_mail_client.c): a simple SMTP-over-TLS or SMTP-STARTTLS client. This client sends an email with fixed content.
-
-* [`ssl/ssl_pthread_server.c`](ssl/ssl_pthread_server.c): a simple HTTPS server using one thread per client to send a fixed response. This program requires the pthread library.
-
-* [`ssl/ssl_server.c`](ssl/ssl_server.c): a simple HTTPS server that sends a fixed response. It serves a single client at a time.
-
-### SSL/TLS feature demonstrators
-
-Note: unlike most of the other programs under the `programs/` directory, these two programs are not intended as a basis for writing an application. They combine most of the features supported by the library, and most applications require only a few features. To write a new application, we recommended that you start with `ssl_client1.c` or `ssl_server.c`, and then look inside `ssl/ssl_client2.c` or `ssl/ssl_server2.c` to see how to use the specific features that your application needs.
-
-* [`ssl/ssl_client2.c`](ssl/ssl_client2.c): an HTTPS client that sends a fixed request and displays the response, with options to select TLS protocol features and Mbed TLS library features.
-
-* [`ssl/ssl_server2.c`](ssl/ssl_server2.c): an HTTPS server that sends a fixed response, with options to select TLS protocol features and Mbed TLS library features.
-
-In addition to providing options for testing client-side features, the `ssl_client2` program has options that allow you to trigger certain behaviors in the server. For example, there are options to select ciphersuites, or to force a renegotiation. These options are useful for testing the corresponding features in a TLS server. Likewise, `ssl_server2` has options to activate certain behaviors that are useful for testing a TLS client.
-
 ## Test utilities
 
 * [`test/benchmark.c`](test/benchmark.c): benchmark for cryptographic algorithms.
@@ -106,16 +76,3 @@
 * [`util/pem2der.c`](util/pem2der.c): a PEM to DER converter. Mbed TLS can read PEM files directly, but this utility can be useful for interacting with other tools or with minimal Mbed TLS builds that lack PEM support.
 
 * [`util/strerror.c`](util/strerror.c): prints the error description corresponding to an integer status returned by an Mbed TLS function.
-
-## X.509 certificate examples
-
-* [`x509/cert_app.c`](x509/cert_app.c): connects to a TLS server and verifies its certificate chain.
-
-* [`x509/cert_req.c`](x509/cert_req.c): generates a certificate signing request (CSR) for a private key.
-
-* [`x509/cert_write.c`](x509/cert_write.c): signs a certificate signing request, or self-signs a certificate.
-
-* [`x509/crl_app.c`](x509/crl_app.c): loads and dumps a certificate revocation list (CRL).
-
-* [`x509/req_app.c`](x509/req_app.c): loads and dumps a certificate signing request (CSR).
-
diff --git a/programs/aes/CMakeLists.txt b/programs/aes/CMakeLists.txt
index f5a0caa..6c4c7e1 100644
--- a/programs/aes/CMakeLists.txt
+++ b/programs/aes/CMakeLists.txt
@@ -1,8 +1,8 @@
 add_executable(aescrypt2 aescrypt2.c)
-target_link_libraries(aescrypt2 mbedtls)
+target_link_libraries(aescrypt2 mbedcrypto)
 
 add_executable(crypt_and_hash crypt_and_hash.c)
-target_link_libraries(crypt_and_hash mbedtls)
+target_link_libraries(crypt_and_hash mbedcrypto)
 
 install(TARGETS aescrypt2 crypt_and_hash
         DESTINATION "bin"
diff --git a/programs/hash/CMakeLists.txt b/programs/hash/CMakeLists.txt
index eda975b..3c6cca9 100644
--- a/programs/hash/CMakeLists.txt
+++ b/programs/hash/CMakeLists.txt
@@ -1,8 +1,8 @@
 add_executable(hello hello.c)
-target_link_libraries(hello mbedtls)
+target_link_libraries(hello mbedcrypto)
 
 add_executable(generic_sum generic_sum.c)
-target_link_libraries(generic_sum mbedtls)
+target_link_libraries(generic_sum mbedcrypto)
 
 install(TARGETS hello generic_sum
         DESTINATION "bin"
diff --git a/programs/pkey/CMakeLists.txt b/programs/pkey/CMakeLists.txt
index 944a100..14e6b14 100644
--- a/programs/pkey/CMakeLists.txt
+++ b/programs/pkey/CMakeLists.txt
@@ -1,56 +1,56 @@
 add_executable(dh_genprime dh_genprime.c)
-target_link_libraries(dh_genprime mbedtls)
+target_link_libraries(dh_genprime mbedcrypto)
 
 add_executable(ecdh_curve25519 ecdh_curve25519.c)
-target_link_libraries(ecdh_curve25519 mbedtls)
+target_link_libraries(ecdh_curve25519 mbedcrypto)
 
 add_executable(ecdsa ecdsa.c)
-target_link_libraries(ecdsa mbedtls)
+target_link_libraries(ecdsa mbedcrypto)
 
 add_executable(gen_key gen_key.c)
-target_link_libraries(gen_key mbedtls)
+target_link_libraries(gen_key mbedcrypto)
 
 add_executable(key_app key_app.c)
-target_link_libraries(key_app mbedtls)
+target_link_libraries(key_app mbedcrypto)
 
 add_executable(key_app_writer key_app_writer.c)
-target_link_libraries(key_app_writer mbedtls)
+target_link_libraries(key_app_writer mbedcrypto)
 
 add_executable(mpi_demo mpi_demo.c)
-target_link_libraries(mpi_demo mbedtls)
+target_link_libraries(mpi_demo mbedcrypto)
 
 add_executable(rsa_genkey rsa_genkey.c)
-target_link_libraries(rsa_genkey mbedtls)
+target_link_libraries(rsa_genkey mbedcrypto)
 
 add_executable(rsa_sign rsa_sign.c)
-target_link_libraries(rsa_sign mbedtls)
+target_link_libraries(rsa_sign mbedcrypto)
 
 add_executable(rsa_verify rsa_verify.c)
-target_link_libraries(rsa_verify mbedtls)
+target_link_libraries(rsa_verify mbedcrypto)
 
 add_executable(rsa_sign_pss rsa_sign_pss.c)
-target_link_libraries(rsa_sign_pss mbedtls)
+target_link_libraries(rsa_sign_pss mbedcrypto)
 
 add_executable(rsa_verify_pss rsa_verify_pss.c)
-target_link_libraries(rsa_verify_pss mbedtls)
+target_link_libraries(rsa_verify_pss mbedcrypto)
 
 add_executable(rsa_encrypt rsa_encrypt.c)
-target_link_libraries(rsa_encrypt mbedtls)
+target_link_libraries(rsa_encrypt mbedcrypto)
 
 add_executable(rsa_decrypt rsa_decrypt.c)
-target_link_libraries(rsa_decrypt mbedtls)
+target_link_libraries(rsa_decrypt mbedcrypto)
 
 add_executable(pk_sign pk_sign.c)
-target_link_libraries(pk_sign mbedtls)
+target_link_libraries(pk_sign mbedcrypto)
 
 add_executable(pk_verify pk_verify.c)
-target_link_libraries(pk_verify mbedtls)
+target_link_libraries(pk_verify mbedcrypto)
 
 add_executable(pk_encrypt pk_encrypt.c)
-target_link_libraries(pk_encrypt mbedtls)
+target_link_libraries(pk_encrypt mbedcrypto)
 
 add_executable(pk_decrypt pk_decrypt.c)
-target_link_libraries(pk_decrypt mbedtls)
+target_link_libraries(pk_decrypt mbedcrypto)
 
 install(TARGETS dh_genprime key_app mpi_demo rsa_genkey rsa_sign rsa_verify rsa_encrypt rsa_decrypt pk_encrypt pk_decrypt pk_sign pk_verify gen_key
         DESTINATION "bin"
diff --git a/programs/psa/CMakeLists.txt b/programs/psa/CMakeLists.txt
index c80043b..8143683 100644
--- a/programs/psa/CMakeLists.txt
+++ b/programs/psa/CMakeLists.txt
@@ -1,11 +1,11 @@
 add_executable(crypto_examples crypto_examples.c)
-target_link_libraries(crypto_examples mbedtls)
+target_link_libraries(crypto_examples mbedcrypto)
 
 add_executable(key_ladder_demo key_ladder_demo.c)
-target_link_libraries(key_ladder_demo mbedtls)
+target_link_libraries(key_ladder_demo mbedcrypto)
 
 add_executable(psa_constant_names psa_constant_names.c)
-target_link_libraries(psa_constant_names mbedtls)
+target_link_libraries(psa_constant_names mbedcrypto)
 
 add_custom_target(
     psa_constant_names_generated
diff --git a/programs/random/CMakeLists.txt b/programs/random/CMakeLists.txt
index 30933d8..630c66e 100644
--- a/programs/random/CMakeLists.txt
+++ b/programs/random/CMakeLists.txt
@@ -1,11 +1,11 @@
 add_executable(gen_random_havege gen_random_havege.c)
-target_link_libraries(gen_random_havege mbedtls)
+target_link_libraries(gen_random_havege mbedcrypto)
 
 add_executable(gen_random_ctr_drbg gen_random_ctr_drbg.c)
-target_link_libraries(gen_random_ctr_drbg mbedtls)
+target_link_libraries(gen_random_ctr_drbg mbedcrypto)
 
 add_executable(gen_entropy gen_entropy.c)
-target_link_libraries(gen_entropy mbedtls)
+target_link_libraries(gen_entropy mbedcrypto)
 
 install(TARGETS gen_random_havege gen_random_ctr_drbg gen_entropy
         DESTINATION "bin"
diff --git a/programs/ssl/CMakeLists.txt b/programs/ssl/CMakeLists.txt
deleted file mode 100644
index f28a47d..0000000
--- a/programs/ssl/CMakeLists.txt
+++ /dev/null
@@ -1,64 +0,0 @@
-set(THREADS_USE_PTHREADS_WIN32 true)
-find_package(Threads)
-
-set(libs
-    mbedtls
-)
-
-set(targets
-    dtls_client
-    dtls_server
-    ssl_client1
-    ssl_client2
-    ssl_server
-    ssl_fork_server
-    ssl_mail_client
-    mini_client
-)
-
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
-if(ENABLE_ZLIB_SUPPORT)
-    set(libs ${libs} ${ZLIB_LIBRARIES})
-endif(ENABLE_ZLIB_SUPPORT)
-
-add_executable(dtls_client dtls_client.c)
-target_link_libraries(dtls_client ${libs})
-
-add_executable(dtls_server dtls_server.c)
-target_link_libraries(dtls_server ${libs})
-
-add_executable(ssl_client1 ssl_client1.c)
-target_link_libraries(ssl_client1 ${libs})
-
-add_executable(ssl_client2 ssl_client2.c)
-target_sources(ssl_client2 PUBLIC ../test/query_config.c)
-target_link_libraries(ssl_client2 ${libs})
-
-add_executable(ssl_server ssl_server.c)
-target_link_libraries(ssl_server ${libs})
-
-add_executable(ssl_server2 ssl_server2.c)
-target_sources(ssl_server2 PUBLIC ../test/query_config.c)
-target_link_libraries(ssl_server2 ${libs})
-
-add_executable(ssl_fork_server ssl_fork_server.c)
-target_link_libraries(ssl_fork_server ${libs})
-
-add_executable(ssl_mail_client ssl_mail_client.c)
-target_link_libraries(ssl_mail_client ${libs})
-
-add_executable(mini_client mini_client.c)
-target_link_libraries(mini_client ${libs})
-
-if(THREADS_FOUND)
-    add_executable(ssl_pthread_server ssl_pthread_server.c)
-    target_link_libraries(ssl_pthread_server ${libs} ${CMAKE_THREAD_LIBS_INIT})
-    set(targets ${targets} ssl_pthread_server)
-endif(THREADS_FOUND)
-
-install(TARGETS ${targets}
-        DESTINATION "bin"
-        PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
diff --git a/programs/ssl/dtls_client.c b/programs/ssl/dtls_client.c
deleted file mode 100644
index 90db06c..0000000
--- a/programs/ssl/dtls_client.c
+++ /dev/null
@@ -1,374 +0,0 @@
-/*
- *  Simple DTLS client demonstration program
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf     printf
-#define mbedtls_fprintf    fprintf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif
-
-#if !defined(MBEDTLS_SSL_CLI_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) ||    \
-    !defined(MBEDTLS_NET_C)  || !defined(MBEDTLS_TIMING_C) ||             \
-    !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C) ||        \
-    !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_RSA_C) ||      \
-    !defined(MBEDTLS_CERTS_C) || !defined(MBEDTLS_PEM_PARSE_C)
-int main( void )
-{
-    mbedtls_printf( "MBEDTLS_SSL_CLI_C and/or MBEDTLS_SSL_PROTO_DTLS and/or "
-            "MBEDTLS_NET_C and/or MBEDTLS_TIMING_C and/or "
-            "MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C and/or "
-            "MBEDTLS_X509_CRT_PARSE_C and/or MBEDTLS_RSA_C and/or "
-            "MBEDTLS_CERTS_C and/or MBEDTLS_PEM_PARSE_C not defined.\n" );
-    return( 0 );
-}
-#else
-
-#include <string.h>
-
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/debug.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/error.h"
-#include "mbedtls/certs.h"
-#include "mbedtls/timing.h"
-
-/* Uncomment out the following line to default to IPv4 and disable IPv6 */
-//#define FORCE_IPV4
-
-#define SERVER_PORT "4433"
-#define SERVER_NAME "localhost"
-
-#ifdef FORCE_IPV4
-#define SERVER_ADDR "127.0.0.1"     /* Forces IPv4 */
-#else
-#define SERVER_ADDR "::1"
-#endif
-
-#define MESSAGE     "Echo this"
-
-#define READ_TIMEOUT_MS 1000
-#define MAX_RETRY       5
-
-#define DEBUG_LEVEL 0
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#include "mbedtls/platform_util.h"
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-static void my_debug( void *ctx, int level,
-                      const char *file, int line,
-                      const char *str )
-{
-    ((void) level);
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: %s", file, line, str );
-    fflush(  (FILE *) ctx  );
-}
-
-int main( int argc, char *argv[] )
-{
-    int ret, len;
-    mbedtls_net_context server_fd;
-    uint32_t flags;
-    unsigned char buf[1024];
-    const char *pers = "dtls_client";
-    int retry_left = MAX_RETRY;
-
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_context ssl;
-    mbedtls_ssl_config conf;
-    mbedtls_x509_crt cacert;
-    mbedtls_timing_delay_context timer;
-
-    ((void) argc);
-    ((void) argv);
-
-#if defined(MBEDTLS_DEBUG_C)
-    mbedtls_debug_set_threshold( DEBUG_LEVEL );
-#endif
-
-    /*
-     * 0. Initialize the RNG and the session data
-     */
-    mbedtls_net_init( &server_fd );
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-    mbedtls_x509_crt_init( &cacert );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-
-    mbedtls_printf( "\n  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    mbedtls_entropy_init( &entropy );
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 0. Load certificates
-     */
-    mbedtls_printf( "  . Loading the CA root certificate ..." );
-    fflush( stdout );
-
-    ret = mbedtls_x509_crt_parse( &cacert, (const unsigned char *) mbedtls_test_cas_pem,
-                          mbedtls_test_cas_pem_len );
-    if( ret < 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned -0x%x\n\n", -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok (%d skipped)\n", ret );
-
-    /*
-     * 1. Start the connection
-     */
-    mbedtls_printf( "  . Connecting to udp/%s/%s...", SERVER_NAME, SERVER_PORT );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_connect( &server_fd, SERVER_ADDR,
-                                         SERVER_PORT, MBEDTLS_NET_PROTO_UDP ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_connect returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 2. Setup stuff
-     */
-    mbedtls_printf( "  . Setting up the DTLS structure..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ssl_config_defaults( &conf,
-                   MBEDTLS_SSL_IS_CLIENT,
-                   MBEDTLS_SSL_TRANSPORT_DATAGRAM,
-                   MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_config_defaults returned %d\n\n", ret );
-        goto exit;
-    }
-
-    /* OPTIONAL is usually a bad choice for security, but makes interop easier
-     * in this simplified example, in which the ca chain is hardcoded.
-     * Production code should set a proper ca chain and use REQUIRED. */
-    mbedtls_ssl_conf_authmode( &conf, MBEDTLS_SSL_VERIFY_OPTIONAL );
-    mbedtls_ssl_conf_ca_chain( &conf, &cacert, NULL );
-    mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-    mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
-
-    if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret );
-        goto exit;
-    }
-
-    if( ( ret = mbedtls_ssl_set_hostname( &ssl, SERVER_NAME ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_set_bio( &ssl, &server_fd,
-                         mbedtls_net_send, mbedtls_net_recv, mbedtls_net_recv_timeout );
-
-    mbedtls_ssl_set_timer_cb( &ssl, &timer, mbedtls_timing_set_delay,
-                                            mbedtls_timing_get_delay );
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 4. Handshake
-     */
-    mbedtls_printf( "  . Performing the DTLS handshake..." );
-    fflush( stdout );
-
-    do ret = mbedtls_ssl_handshake( &ssl );
-    while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
-           ret == MBEDTLS_ERR_SSL_WANT_WRITE );
-
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_handshake returned -0x%x\n\n", -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 5. Verify the server certificate
-     */
-    mbedtls_printf( "  . Verifying peer X.509 certificate..." );
-
-    /* In real life, we would have used MBEDTLS_SSL_VERIFY_REQUIRED so that the
-     * handshake would not succeed if the peer's cert is bad.  Even if we used
-     * MBEDTLS_SSL_VERIFY_OPTIONAL, we would bail out here if ret != 0 */
-    if( ( flags = mbedtls_ssl_get_verify_result( &ssl ) ) != 0 )
-    {
-        char vrfy_buf[512];
-
-        mbedtls_printf( " failed\n" );
-
-        mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ), "  ! ", flags );
-
-        mbedtls_printf( "%s\n", vrfy_buf );
-    }
-    else
-        mbedtls_printf( " ok\n" );
-
-    /*
-     * 6. Write the echo request
-     */
-send_request:
-    mbedtls_printf( "  > Write to server:" );
-    fflush( stdout );
-
-    len = sizeof( MESSAGE ) - 1;
-
-    do ret = mbedtls_ssl_write( &ssl, (unsigned char *) MESSAGE, len );
-    while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
-           ret == MBEDTLS_ERR_SSL_WANT_WRITE );
-
-    if( ret < 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_write returned %d\n\n", ret );
-        goto exit;
-    }
-
-    len = ret;
-    mbedtls_printf( " %d bytes written\n\n%s\n\n", len, MESSAGE );
-
-    /*
-     * 7. Read the echo response
-     */
-    mbedtls_printf( "  < Read from server:" );
-    fflush( stdout );
-
-    len = sizeof( buf ) - 1;
-    memset( buf, 0, sizeof( buf ) );
-
-    do ret = mbedtls_ssl_read( &ssl, buf, len );
-    while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
-           ret == MBEDTLS_ERR_SSL_WANT_WRITE );
-
-    if( ret <= 0 )
-    {
-        switch( ret )
-        {
-            case MBEDTLS_ERR_SSL_TIMEOUT:
-                mbedtls_printf( " timeout\n\n" );
-                if( retry_left-- > 0 )
-                    goto send_request;
-                goto exit;
-
-            case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
-                mbedtls_printf( " connection was closed gracefully\n" );
-                ret = 0;
-                goto close_notify;
-
-            default:
-                mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n\n", -ret );
-                goto exit;
-        }
-    }
-
-    len = ret;
-    mbedtls_printf( " %d bytes read\n\n%s\n\n", len, buf );
-
-    /*
-     * 8. Done, cleanly close the connection
-     */
-close_notify:
-    mbedtls_printf( "  . Closing the connection..." );
-
-    /* No error checking, the connection might be closed already */
-    do ret = mbedtls_ssl_close_notify( &ssl );
-    while( ret == MBEDTLS_ERR_SSL_WANT_WRITE );
-    ret = 0;
-
-    mbedtls_printf( " done\n" );
-
-    /*
-     * 9. Final clean-ups and exit
-     */
-exit:
-
-#ifdef MBEDTLS_ERROR_C
-    if( ret != 0 )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        mbedtls_printf( "Last error was: %d - %s\n\n", ret, error_buf );
-    }
-#endif
-
-    mbedtls_net_free( &server_fd );
-
-    mbedtls_x509_crt_free( &cacert );
-    mbedtls_ssl_free( &ssl );
-    mbedtls_ssl_config_free( &conf );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    /* Shell can not handle large exit numbers -> 1 for errors */
-    if( ret < 0 )
-        ret = 1;
-
-    return( ret );
-}
-#endif /* MBEDTLS_SSL_CLI_C && MBEDTLS_SSL_PROTO_DTLS && MBEDTLS_NET_C &&
-          MBEDTLD_TIMING_C && MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C &&
-          MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_RSA_C && MBEDTLS_CERTS_C &&
-          MBEDTLS_PEM_PARSE_C */
diff --git a/programs/ssl/dtls_server.c b/programs/ssl/dtls_server.c
deleted file mode 100644
index dd21fbf..0000000
--- a/programs/ssl/dtls_server.c
+++ /dev/null
@@ -1,449 +0,0 @@
-/*
- *  Simple DTLS server demonstration program
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#define mbedtls_printf     printf
-#define mbedtls_fprintf    fprintf
-#define mbedtls_time_t     time_t
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif
-
-/* Uncomment out the following line to default to IPv4 and disable IPv6 */
-//#define FORCE_IPV4
-
-#ifdef FORCE_IPV4
-#define BIND_IP     "0.0.0.0"     /* Forces IPv4 */
-#else
-#define BIND_IP     "::"
-#endif
-
-#if !defined(MBEDTLS_SSL_SRV_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) ||    \
-    !defined(MBEDTLS_SSL_COOKIE_C) || !defined(MBEDTLS_NET_C) ||          \
-    !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C) ||        \
-    !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_RSA_C) ||      \
-    !defined(MBEDTLS_CERTS_C) || !defined(MBEDTLS_PEM_PARSE_C) ||         \
-    !defined(MBEDTLS_TIMING_C)
-
-int main( void )
-{
-    printf( "MBEDTLS_SSL_SRV_C and/or MBEDTLS_SSL_PROTO_DTLS and/or "
-            "MBEDTLS_SSL_COOKIE_C and/or MBEDTLS_NET_C and/or "
-            "MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C and/or "
-            "MBEDTLS_X509_CRT_PARSE_C and/or MBEDTLS_RSA_C and/or "
-            "MBEDTLS_CERTS_C and/or MBEDTLS_PEM_PARSE_C and/or "
-            "MBEDTLS_TIMING_C not defined.\n" );
-    return( 0 );
-}
-#else
-
-#if defined(_WIN32)
-#include <windows.h>
-#endif
-
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/certs.h"
-#include "mbedtls/x509.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/ssl_cookie.h"
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/error.h"
-#include "mbedtls/debug.h"
-#include "mbedtls/timing.h"
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-#include "mbedtls/ssl_cache.h"
-#endif
-
-#define READ_TIMEOUT_MS 10000   /* 5 seconds */
-#define DEBUG_LEVEL 0
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#include "mbedtls/platform_util.h"
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-static void my_debug( void *ctx, int level,
-                      const char *file, int line,
-                      const char *str )
-{
-    ((void) level);
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: %s", file, line, str );
-    fflush(  (FILE *) ctx  );
-}
-
-int main( void )
-{
-    int ret, len;
-    mbedtls_net_context listen_fd, client_fd;
-    unsigned char buf[1024];
-    const char *pers = "dtls_server";
-    unsigned char client_ip[16] = { 0 };
-    size_t cliip_len;
-    mbedtls_ssl_cookie_ctx cookie_ctx;
-
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_context ssl;
-    mbedtls_ssl_config conf;
-    mbedtls_x509_crt srvcert;
-    mbedtls_pk_context pkey;
-    mbedtls_timing_delay_context timer;
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_context cache;
-#endif
-
-    mbedtls_net_init( &listen_fd );
-    mbedtls_net_init( &client_fd );
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-    mbedtls_ssl_cookie_init( &cookie_ctx );
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_init( &cache );
-#endif
-    mbedtls_x509_crt_init( &srvcert );
-    mbedtls_pk_init( &pkey );
-    mbedtls_entropy_init( &entropy );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-
-#if defined(MBEDTLS_DEBUG_C)
-    mbedtls_debug_set_threshold( DEBUG_LEVEL );
-#endif
-
-    /*
-     * 1. Load the certificates and private RSA key
-     */
-    printf( "\n  . Loading the server cert. and key..." );
-    fflush( stdout );
-
-    /*
-     * This demonstration program uses embedded test certificates.
-     * Instead, you may want to use mbedtls_x509_crt_parse_file() to read the
-     * server and CA certificates, as well as mbedtls_pk_parse_keyfile().
-     */
-    ret = mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_srv_crt,
-                          mbedtls_test_srv_crt_len );
-    if( ret != 0 )
-    {
-        printf( " failed\n  !  mbedtls_x509_crt_parse returned %d\n\n", ret );
-        goto exit;
-    }
-
-    ret = mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_cas_pem,
-                          mbedtls_test_cas_pem_len );
-    if( ret != 0 )
-    {
-        printf( " failed\n  !  mbedtls_x509_crt_parse returned %d\n\n", ret );
-        goto exit;
-    }
-
-    ret =  mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
-                         mbedtls_test_srv_key_len, NULL, 0 );
-    if( ret != 0 )
-    {
-        printf( " failed\n  !  mbedtls_pk_parse_key returned %d\n\n", ret );
-        goto exit;
-    }
-
-    printf( " ok\n" );
-
-    /*
-     * 2. Setup the "listening" UDP socket
-     */
-    printf( "  . Bind on udp/*/4433 ..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_bind( &listen_fd, BIND_IP, "4433", MBEDTLS_NET_PROTO_UDP ) ) != 0 )
-    {
-        printf( " failed\n  ! mbedtls_net_bind returned %d\n\n", ret );
-        goto exit;
-    }
-
-    printf( " ok\n" );
-
-    /*
-     * 3. Seed the RNG
-     */
-    printf( "  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret );
-        goto exit;
-    }
-
-    printf( " ok\n" );
-
-    /*
-     * 4. Setup stuff
-     */
-    printf( "  . Setting up the DTLS data..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ssl_config_defaults( &conf,
-                    MBEDTLS_SSL_IS_SERVER,
-                    MBEDTLS_SSL_TRANSPORT_DATAGRAM,
-                    MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_config_defaults returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-    mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_conf_session_cache( &conf, &cache,
-                                   mbedtls_ssl_cache_get,
-                                   mbedtls_ssl_cache_set );
-#endif
-
-    mbedtls_ssl_conf_ca_chain( &conf, srvcert.next, NULL );
-   if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert, &pkey ) ) != 0 )
-    {
-        printf( " failed\n  ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
-        goto exit;
-    }
-
-    if( ( ret = mbedtls_ssl_cookie_setup( &cookie_ctx,
-                                  mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
-    {
-        printf( " failed\n  ! mbedtls_ssl_cookie_setup returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_conf_dtls_cookies( &conf, mbedtls_ssl_cookie_write, mbedtls_ssl_cookie_check,
-                               &cookie_ctx );
-
-    if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
-    {
-        printf( " failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_set_timer_cb( &ssl, &timer, mbedtls_timing_set_delay,
-                                            mbedtls_timing_get_delay );
-
-    printf( " ok\n" );
-
-reset:
-#ifdef MBEDTLS_ERROR_C
-    if( ret != 0 )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        printf("Last error was: %d - %s\n\n", ret, error_buf );
-    }
-#endif
-
-    mbedtls_net_free( &client_fd );
-
-    mbedtls_ssl_session_reset( &ssl );
-
-    /*
-     * 3. Wait until a client connects
-     */
-    printf( "  . Waiting for a remote connection ..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_accept( &listen_fd, &client_fd,
-                    client_ip, sizeof( client_ip ), &cliip_len ) ) != 0 )
-    {
-        printf( " failed\n  ! mbedtls_net_accept returned %d\n\n", ret );
-        goto exit;
-    }
-
-    /* For HelloVerifyRequest cookies */
-    if( ( ret = mbedtls_ssl_set_client_transport_id( &ssl,
-                    client_ip, cliip_len ) ) != 0 )
-    {
-        printf( " failed\n  ! "
-                "mbedtls_ssl_set_client_transport_id() returned -0x%x\n\n", -ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_set_bio( &ssl, &client_fd,
-                         mbedtls_net_send, mbedtls_net_recv, mbedtls_net_recv_timeout );
-
-    printf( " ok\n" );
-
-    /*
-     * 5. Handshake
-     */
-    printf( "  . Performing the DTLS handshake..." );
-    fflush( stdout );
-
-    do ret = mbedtls_ssl_handshake( &ssl );
-    while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
-           ret == MBEDTLS_ERR_SSL_WANT_WRITE );
-
-    if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED )
-    {
-        printf( " hello verification requested\n" );
-        ret = 0;
-        goto reset;
-    }
-    else if( ret != 0 )
-    {
-        printf( " failed\n  ! mbedtls_ssl_handshake returned -0x%x\n\n", -ret );
-        goto reset;
-    }
-
-    printf( " ok\n" );
-
-    /*
-     * 6. Read the echo Request
-     */
-    printf( "  < Read from client:" );
-    fflush( stdout );
-
-    len = sizeof( buf ) - 1;
-    memset( buf, 0, sizeof( buf ) );
-
-    do ret = mbedtls_ssl_read( &ssl, buf, len );
-    while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
-           ret == MBEDTLS_ERR_SSL_WANT_WRITE );
-
-    if( ret <= 0 )
-    {
-        switch( ret )
-        {
-            case MBEDTLS_ERR_SSL_TIMEOUT:
-                printf( " timeout\n\n" );
-                goto reset;
-
-            case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
-                printf( " connection was closed gracefully\n" );
-                ret = 0;
-                goto close_notify;
-
-            default:
-                printf( " mbedtls_ssl_read returned -0x%x\n\n", -ret );
-                goto reset;
-        }
-    }
-
-    len = ret;
-    printf( " %d bytes read\n\n%s\n\n", len, buf );
-
-    /*
-     * 7. Write the 200 Response
-     */
-    printf( "  > Write to client:" );
-    fflush( stdout );
-
-    do ret = mbedtls_ssl_write( &ssl, buf, len );
-    while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
-           ret == MBEDTLS_ERR_SSL_WANT_WRITE );
-
-    if( ret < 0 )
-    {
-        printf( " failed\n  ! mbedtls_ssl_write returned %d\n\n", ret );
-        goto exit;
-    }
-
-    len = ret;
-    printf( " %d bytes written\n\n%s\n\n", len, buf );
-
-    /*
-     * 8. Done, cleanly close the connection
-     */
-close_notify:
-    printf( "  . Closing the connection..." );
-
-    /* No error checking, the connection might be closed already */
-    do ret = mbedtls_ssl_close_notify( &ssl );
-    while( ret == MBEDTLS_ERR_SSL_WANT_WRITE );
-    ret = 0;
-
-    printf( " done\n" );
-
-    goto reset;
-
-    /*
-     * Final clean-ups and exit
-     */
-exit:
-
-#ifdef MBEDTLS_ERROR_C
-    if( ret != 0 )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        printf( "Last error was: %d - %s\n\n", ret, error_buf );
-    }
-#endif
-
-    mbedtls_net_free( &client_fd );
-    mbedtls_net_free( &listen_fd );
-
-    mbedtls_x509_crt_free( &srvcert );
-    mbedtls_pk_free( &pkey );
-    mbedtls_ssl_free( &ssl );
-    mbedtls_ssl_config_free( &conf );
-    mbedtls_ssl_cookie_free( &cookie_ctx );
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_free( &cache );
-#endif
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(_WIN32)
-    printf( "  Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    /* Shell can not handle large exit numbers -> 1 for errors */
-    if( ret < 0 )
-        ret = 1;
-
-    return( ret );
-}
-#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_PROTO_DTLS &&
-          MBEDTLS_SSL_COOKIE_C && MBEDTLS_NET_C && MBEDTLS_ENTROPY_C &&
-          MBEDTLS_CTR_DRBG_C && MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_RSA_C
-          && MBEDTLS_CERTS_C && MBEDTLS_PEM_PARSE_C && MBEDTLS_TIMING_C */
diff --git a/programs/ssl/mini_client.c b/programs/ssl/mini_client.c
deleted file mode 100644
index ff36128..0000000
--- a/programs/ssl/mini_client.c
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
- *  Minimal SSL client, used for memory measurements.
- *  (meant to be used with config-suite-b.h or config-ccm-psk-tls1_2.h)
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_printf          printf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif
-
-/*
- * We're creating and connecting the socket "manually" rather than using the
- * NET module, in order to avoid the overhead of getaddrinfo() which tends to
- * dominate memory usage in small configurations. For the sake of simplicity,
- * only a Unix version is implemented.
- *
- * Warning: we are breaking some of the abtractions from the NET layer here.
- * This is not a good example for general use. This programs has the specific
- * goal of minimizing use of the libc functions on full-blown OSes.
- */
-#if defined(unix) || defined(__unix__) || defined(__unix) || defined(__APPLE__)
-#define UNIX
-#endif
-
-#if !defined(MBEDTLS_CTR_DRBG_C) || !defined(MBEDTLS_ENTROPY_C) || \
-    !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_SSL_CLI_C) || \
-    !defined(UNIX)
-
-int main( void )
-{
-    mbedtls_printf( "MBEDTLS_CTR_DRBG_C and/or MBEDTLS_ENTROPY_C and/or "
-            "MBEDTLS_NET_C and/or MBEDTLS_SSL_CLI_C and/or UNIX "
-            "not defined.\n");
-    return( 0 );
-}
-#else
-
-#include <string.h>
-
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-/*
- * Hardcoded values for server host and port
- */
-#define PORT_BE 0x1151      /* 4433 */
-#define PORT_LE 0x5111
-#define ADDR_BE 0x7f000001  /* 127.0.0.1 */
-#define ADDR_LE 0x0100007f
-#define HOSTNAME "localhost" /* for cert verification if enabled */
-
-#define GET_REQUEST "GET / HTTP/1.0\r\n\r\n"
-
-const char *pers = "mini_client";
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-const unsigned char psk[] = {
-    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
-};
-const char psk_id[] = "Client_identity";
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-/* This is tests/data_files/test-ca2.crt, a CA using EC secp384r1 */
-const unsigned char ca_cert[] = {
-    0x30, 0x82, 0x02, 0x52, 0x30, 0x82, 0x01, 0xd7, 0xa0, 0x03, 0x02, 0x01,
-    0x02, 0x02, 0x09, 0x00, 0xc1, 0x43, 0xe2, 0x7e, 0x62, 0x43, 0xcc, 0xe8,
-    0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02,
-    0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13,
-    0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x04, 0x0a,
-    0x13, 0x08, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x53, 0x53, 0x4c, 0x31, 0x1c,
-    0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x13, 0x50, 0x6f, 0x6c,
-    0x61, 0x72, 0x73, 0x73, 0x6c, 0x20, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45,
-    0x43, 0x20, 0x43, 0x41, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x33, 0x30, 0x39,
-    0x32, 0x34, 0x31, 0x35, 0x34, 0x39, 0x34, 0x38, 0x5a, 0x17, 0x0d, 0x32,
-    0x33, 0x30, 0x39, 0x32, 0x32, 0x31, 0x35, 0x34, 0x39, 0x34, 0x38, 0x5a,
-    0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13,
-    0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x04, 0x0a,
-    0x13, 0x08, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x53, 0x53, 0x4c, 0x31, 0x1c,
-    0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x13, 0x50, 0x6f, 0x6c,
-    0x61, 0x72, 0x73, 0x73, 0x6c, 0x20, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45,
-    0x43, 0x20, 0x43, 0x41, 0x30, 0x76, 0x30, 0x10, 0x06, 0x07, 0x2a, 0x86,
-    0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x05, 0x2b, 0x81, 0x04, 0x00, 0x22,
-    0x03, 0x62, 0x00, 0x04, 0xc3, 0xda, 0x2b, 0x34, 0x41, 0x37, 0x58, 0x2f,
-    0x87, 0x56, 0xfe, 0xfc, 0x89, 0xba, 0x29, 0x43, 0x4b, 0x4e, 0xe0, 0x6e,
-    0xc3, 0x0e, 0x57, 0x53, 0x33, 0x39, 0x58, 0xd4, 0x52, 0xb4, 0x91, 0x95,
-    0x39, 0x0b, 0x23, 0xdf, 0x5f, 0x17, 0x24, 0x62, 0x48, 0xfc, 0x1a, 0x95,
-    0x29, 0xce, 0x2c, 0x2d, 0x87, 0xc2, 0x88, 0x52, 0x80, 0xaf, 0xd6, 0x6a,
-    0xab, 0x21, 0xdd, 0xb8, 0xd3, 0x1c, 0x6e, 0x58, 0xb8, 0xca, 0xe8, 0xb2,
-    0x69, 0x8e, 0xf3, 0x41, 0xad, 0x29, 0xc3, 0xb4, 0x5f, 0x75, 0xa7, 0x47,
-    0x6f, 0xd5, 0x19, 0x29, 0x55, 0x69, 0x9a, 0x53, 0x3b, 0x20, 0xb4, 0x66,
-    0x16, 0x60, 0x33, 0x1e, 0xa3, 0x81, 0xa0, 0x30, 0x81, 0x9d, 0x30, 0x1d,
-    0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x9d, 0x6d, 0x20,
-    0x24, 0x49, 0x01, 0x3f, 0x2b, 0xcb, 0x78, 0xb5, 0x19, 0xbc, 0x7e, 0x24,
-    0xc9, 0xdb, 0xfb, 0x36, 0x7c, 0x30, 0x6e, 0x06, 0x03, 0x55, 0x1d, 0x23,
-    0x04, 0x67, 0x30, 0x65, 0x80, 0x14, 0x9d, 0x6d, 0x20, 0x24, 0x49, 0x01,
-    0x3f, 0x2b, 0xcb, 0x78, 0xb5, 0x19, 0xbc, 0x7e, 0x24, 0xc9, 0xdb, 0xfb,
-    0x36, 0x7c, 0xa1, 0x42, 0xa4, 0x40, 0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09,
-    0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30,
-    0x0f, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x08, 0x50, 0x6f, 0x6c, 0x61,
-    0x72, 0x53, 0x53, 0x4c, 0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04,
-    0x03, 0x13, 0x13, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x73, 0x73, 0x6c, 0x20,
-    0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x43, 0x20, 0x43, 0x41, 0x82, 0x09,
-    0x00, 0xc1, 0x43, 0xe2, 0x7e, 0x62, 0x43, 0xcc, 0xe8, 0x30, 0x0c, 0x06,
-    0x03, 0x55, 0x1d, 0x13, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0xff, 0x30,
-    0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03,
-    0x69, 0x00, 0x30, 0x66, 0x02, 0x31, 0x00, 0xc3, 0xb4, 0x62, 0x73, 0x56,
-    0x28, 0x95, 0x00, 0x7d, 0x78, 0x12, 0x26, 0xd2, 0x71, 0x7b, 0x19, 0xf8,
-    0x8a, 0x98, 0x3e, 0x92, 0xfe, 0x33, 0x9e, 0xe4, 0x79, 0xd2, 0xfe, 0x7a,
-    0xb7, 0x87, 0x74, 0x3c, 0x2b, 0xb8, 0xd7, 0x69, 0x94, 0x0b, 0xa3, 0x67,
-    0x77, 0xb8, 0xb3, 0xbe, 0xd1, 0x36, 0x32, 0x02, 0x31, 0x00, 0xfd, 0x67,
-    0x9c, 0x94, 0x23, 0x67, 0xc0, 0x56, 0xba, 0x4b, 0x33, 0x15, 0x00, 0xc6,
-    0xe3, 0xcc, 0x31, 0x08, 0x2c, 0x9c, 0x8b, 0xda, 0xa9, 0x75, 0x23, 0x2f,
-    0xb8, 0x28, 0xe7, 0xf2, 0x9c, 0x14, 0x3a, 0x40, 0x01, 0x5c, 0xaf, 0x0c,
-    0xb2, 0xcf, 0x74, 0x7f, 0x30, 0x9f, 0x08, 0x43, 0xad, 0x20,
-};
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-enum exit_codes
-{
-    exit_ok = 0,
-    ctr_drbg_seed_failed,
-    ssl_config_defaults_failed,
-    ssl_setup_failed,
-    hostname_failed,
-    socket_failed,
-    connect_failed,
-    x509_crt_parse_failed,
-    ssl_handshake_failed,
-    ssl_write_failed,
-};
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#include "mbedtls/platform_util.h"
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-int main( void )
-{
-    int ret = exit_ok;
-    mbedtls_net_context server_fd;
-    struct sockaddr_in addr;
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_x509_crt ca;
-#endif
-
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_context ssl;
-    mbedtls_ssl_config conf;
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-
-    /*
-     * 0. Initialize and setup stuff
-     */
-    mbedtls_net_init( &server_fd );
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_x509_crt_init( &ca );
-#endif
-
-    mbedtls_entropy_init( &entropy );
-    if( mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                       (const unsigned char *) pers, strlen( pers ) ) != 0 )
-    {
-        ret = ctr_drbg_seed_failed;
-        goto exit;
-    }
-
-    if( mbedtls_ssl_config_defaults( &conf,
-                MBEDTLS_SSL_IS_CLIENT,
-                MBEDTLS_SSL_TRANSPORT_STREAM,
-                MBEDTLS_SSL_PRESET_DEFAULT ) != 0 )
-    {
-        ret = ssl_config_defaults_failed;
-        goto exit;
-    }
-
-    mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    mbedtls_ssl_conf_psk( &conf, psk, sizeof( psk ),
-                (const unsigned char *) psk_id, sizeof( psk_id ) - 1 );
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    if( mbedtls_x509_crt_parse_der( &ca, ca_cert, sizeof( ca_cert ) ) != 0 )
-    {
-        ret = x509_crt_parse_failed;
-        goto exit;
-    }
-
-    mbedtls_ssl_conf_ca_chain( &conf, &ca, NULL );
-    mbedtls_ssl_conf_authmode( &conf, MBEDTLS_SSL_VERIFY_REQUIRED );
-#endif
-
-    if( mbedtls_ssl_setup( &ssl, &conf ) != 0 )
-    {
-        ret = ssl_setup_failed;
-        goto exit;
-    }
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    if( mbedtls_ssl_set_hostname( &ssl, HOSTNAME ) != 0 )
-    {
-        ret = hostname_failed;
-        goto exit;
-    }
-#endif
-
-    /*
-     * 1. Start the connection
-     */
-    memset( &addr, 0, sizeof( addr ) );
-    addr.sin_family = AF_INET;
-
-    ret = 1; /* for endianness detection */
-    addr.sin_port = *((char *) &ret) == ret ? PORT_LE : PORT_BE;
-    addr.sin_addr.s_addr = *((char *) &ret) == ret ? ADDR_LE : ADDR_BE;
-    ret = 0;
-
-    if( ( server_fd.fd = socket( AF_INET, SOCK_STREAM, 0 ) ) < 0 )
-    {
-        ret = socket_failed;
-        goto exit;
-    }
-
-    if( connect( server_fd.fd,
-                (const struct sockaddr *) &addr, sizeof( addr ) ) < 0 )
-    {
-        ret = connect_failed;
-        goto exit;
-    }
-
-    mbedtls_ssl_set_bio( &ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, NULL );
-
-    if( mbedtls_ssl_handshake( &ssl ) != 0 )
-    {
-        ret = ssl_handshake_failed;
-        goto exit;
-    }
-
-    /*
-     * 2. Write the GET request and close the connection
-     */
-    if( mbedtls_ssl_write( &ssl, (const unsigned char *) GET_REQUEST,
-                         sizeof( GET_REQUEST ) - 1 ) <= 0 )
-    {
-        ret = ssl_write_failed;
-        goto exit;
-    }
-
-    mbedtls_ssl_close_notify( &ssl );
-
-exit:
-    mbedtls_net_free( &server_fd );
-
-    mbedtls_ssl_free( &ssl );
-    mbedtls_ssl_config_free( &conf );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_x509_crt_free( &ca );
-#endif
-
-    return( ret );
-}
-#endif
diff --git a/programs/ssl/ssl_client1.c b/programs/ssl/ssl_client1.c
deleted file mode 100644
index 646909f..0000000
--- a/programs/ssl/ssl_client1.c
+++ /dev/null
@@ -1,331 +0,0 @@
-/*
- *  SSL client demonstration program
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_time            time
-#define mbedtls_time_t          time_t
-#define mbedtls_fprintf         fprintf
-#define mbedtls_printf          printf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif /* MBEDTLS_PLATFORM_C */
-
-#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_ENTROPY_C) ||  \
-    !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_CLI_C) || \
-    !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_RSA_C) ||         \
-    !defined(MBEDTLS_CERTS_C) || !defined(MBEDTLS_PEM_PARSE_C) || \
-    !defined(MBEDTLS_CTR_DRBG_C) || !defined(MBEDTLS_X509_CRT_PARSE_C)
-int main( void )
-{
-    mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_ENTROPY_C and/or "
-           "MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_CLI_C and/or "
-           "MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
-           "MBEDTLS_CTR_DRBG_C and/or MBEDTLS_X509_CRT_PARSE_C "
-           "not defined.\n");
-    return( 0 );
-}
-#else
-
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/debug.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/error.h"
-#include "mbedtls/certs.h"
-
-#include <string.h>
-
-#define SERVER_PORT "4433"
-#define SERVER_NAME "localhost"
-#define GET_REQUEST "GET / HTTP/1.0\r\n\r\n"
-
-#define DEBUG_LEVEL 1
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#include "mbedtls/platform_util.h"
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-static void my_debug( void *ctx, int level,
-                      const char *file, int line,
-                      const char *str )
-{
-    ((void) level);
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: %s", file, line, str );
-    fflush(  (FILE *) ctx  );
-}
-
-int main( void )
-{
-    int ret = 1, len;
-    int exit_code = MBEDTLS_EXIT_FAILURE;
-    mbedtls_net_context server_fd;
-    uint32_t flags;
-    unsigned char buf[1024];
-    const char *pers = "ssl_client1";
-
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_context ssl;
-    mbedtls_ssl_config conf;
-    mbedtls_x509_crt cacert;
-
-#if defined(MBEDTLS_DEBUG_C)
-    mbedtls_debug_set_threshold( DEBUG_LEVEL );
-#endif
-
-    /*
-     * 0. Initialize the RNG and the session data
-     */
-    mbedtls_net_init( &server_fd );
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-    mbedtls_x509_crt_init( &cacert );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-
-    mbedtls_printf( "\n  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    mbedtls_entropy_init( &entropy );
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 0. Initialize certificates
-     */
-    mbedtls_printf( "  . Loading the CA root certificate ..." );
-    fflush( stdout );
-
-    ret = mbedtls_x509_crt_parse( &cacert, (const unsigned char *) mbedtls_test_cas_pem,
-                          mbedtls_test_cas_pem_len );
-    if( ret < 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned -0x%x\n\n", -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok (%d skipped)\n", ret );
-
-    /*
-     * 1. Start the connection
-     */
-    mbedtls_printf( "  . Connecting to tcp/%s/%s...", SERVER_NAME, SERVER_PORT );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_connect( &server_fd, SERVER_NAME,
-                                         SERVER_PORT, MBEDTLS_NET_PROTO_TCP ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_connect returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 2. Setup stuff
-     */
-    mbedtls_printf( "  . Setting up the SSL/TLS structure..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ssl_config_defaults( &conf,
-                    MBEDTLS_SSL_IS_CLIENT,
-                    MBEDTLS_SSL_TRANSPORT_STREAM,
-                    MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_config_defaults returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /* OPTIONAL is not optimal for security,
-     * but makes interop easier in this simplified example */
-    mbedtls_ssl_conf_authmode( &conf, MBEDTLS_SSL_VERIFY_OPTIONAL );
-    mbedtls_ssl_conf_ca_chain( &conf, &cacert, NULL );
-    mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-    mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
-
-    if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret );
-        goto exit;
-    }
-
-    if( ( ret = mbedtls_ssl_set_hostname( &ssl, SERVER_NAME ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_set_bio( &ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, NULL );
-
-    /*
-     * 4. Handshake
-     */
-    mbedtls_printf( "  . Performing the SSL/TLS handshake..." );
-    fflush( stdout );
-
-    while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
-    {
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_handshake returned -0x%x\n\n", -ret );
-            goto exit;
-        }
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 5. Verify the server certificate
-     */
-    mbedtls_printf( "  . Verifying peer X.509 certificate..." );
-
-    /* In real life, we probably want to bail out when ret != 0 */
-    if( ( flags = mbedtls_ssl_get_verify_result( &ssl ) ) != 0 )
-    {
-        char vrfy_buf[512];
-
-        mbedtls_printf( " failed\n" );
-
-        mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ), "  ! ", flags );
-
-        mbedtls_printf( "%s\n", vrfy_buf );
-    }
-    else
-        mbedtls_printf( " ok\n" );
-
-    /*
-     * 3. Write the GET request
-     */
-    mbedtls_printf( "  > Write to server:" );
-    fflush( stdout );
-
-    len = sprintf( (char *) buf, GET_REQUEST );
-
-    while( ( ret = mbedtls_ssl_write( &ssl, buf, len ) ) <= 0 )
-    {
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_write returned %d\n\n", ret );
-            goto exit;
-        }
-    }
-
-    len = ret;
-    mbedtls_printf( " %d bytes written\n\n%s", len, (char *) buf );
-
-    /*
-     * 7. Read the HTTP response
-     */
-    mbedtls_printf( "  < Read from server:" );
-    fflush( stdout );
-
-    do
-    {
-        len = sizeof( buf ) - 1;
-        memset( buf, 0, sizeof( buf ) );
-        ret = mbedtls_ssl_read( &ssl, buf, len );
-
-        if( ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE )
-            continue;
-
-        if( ret == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY )
-            break;
-
-        if( ret < 0 )
-        {
-            mbedtls_printf( "failed\n  ! mbedtls_ssl_read returned %d\n\n", ret );
-            break;
-        }
-
-        if( ret == 0 )
-        {
-            mbedtls_printf( "\n\nEOF\n\n" );
-            break;
-        }
-
-        len = ret;
-        mbedtls_printf( " %d bytes read\n\n%s", len, (char *) buf );
-    }
-    while( 1 );
-
-    mbedtls_ssl_close_notify( &ssl );
-
-    exit_code = MBEDTLS_EXIT_SUCCESS;
-
-exit:
-
-#ifdef MBEDTLS_ERROR_C
-    if( exit_code != MBEDTLS_EXIT_SUCCESS )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        mbedtls_printf("Last error was: %d - %s\n\n", ret, error_buf );
-    }
-#endif
-
-    mbedtls_net_free( &server_fd );
-
-    mbedtls_x509_crt_free( &cacert );
-    mbedtls_ssl_free( &ssl );
-    mbedtls_ssl_config_free( &conf );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( exit_code );
-}
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_SSL_TLS_C &&
-          MBEDTLS_SSL_CLI_C && MBEDTLS_NET_C && MBEDTLS_RSA_C &&
-          MBEDTLS_CERTS_C && MBEDTLS_PEM_PARSE_C && MBEDTLS_CTR_DRBG_C &&
-          MBEDTLS_X509_CRT_PARSE_C */
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
deleted file mode 100644
index 2cddfb4..0000000
--- a/programs/ssl/ssl_client2.c
+++ /dev/null
@@ -1,2454 +0,0 @@
-/*
- *  SSL client with certificate authentication
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_time       time
-#define mbedtls_time_t     time_t
-#define mbedtls_printf     printf
-#define mbedtls_fprintf    fprintf
-#define mbedtls_snprintf   snprintf
-#define mbedtls_calloc     calloc
-#define mbedtls_free       free
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif
-
-#if !defined(MBEDTLS_ENTROPY_C) || \
-    !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_CLI_C) || \
-    !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_CTR_DRBG_C)
-int main( void )
-{
-    mbedtls_printf("MBEDTLS_ENTROPY_C and/or "
-           "MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_CLI_C and/or "
-           "MBEDTLS_NET_C and/or MBEDTLS_CTR_DRBG_C and/or not defined.\n");
-    return( 0 );
-}
-#else
-
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/certs.h"
-#include "mbedtls/x509.h"
-#include "mbedtls/error.h"
-#include "mbedtls/debug.h"
-#include "mbedtls/timing.h"
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "psa/crypto.h"
-#include "mbedtls/psa_util.h"
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define MAX_REQUEST_SIZE      20000
-#define MAX_REQUEST_SIZE_STR "20000"
-
-#define DFL_SERVER_NAME         "localhost"
-#define DFL_SERVER_ADDR         NULL
-#define DFL_SERVER_PORT         "4433"
-#define DFL_REQUEST_PAGE        "/"
-#define DFL_REQUEST_SIZE        -1
-#define DFL_DEBUG_LEVEL         0
-#define DFL_CONTEXT_CRT_CB      0
-#define DFL_NBIO                0
-#define DFL_EVENT               0
-#define DFL_READ_TIMEOUT        0
-#define DFL_MAX_RESEND          0
-#define DFL_CA_FILE             ""
-#define DFL_CA_PATH             ""
-#define DFL_CRT_FILE            ""
-#define DFL_KEY_FILE            ""
-#define DFL_KEY_OPAQUE          0
-#define DFL_PSK                 ""
-#define DFL_PSK_OPAQUE          0
-#define DFL_PSK_IDENTITY        "Client_identity"
-#define DFL_ECJPAKE_PW          NULL
-#define DFL_EC_MAX_OPS          -1
-#define DFL_FORCE_CIPHER        0
-#define DFL_RENEGOTIATION       MBEDTLS_SSL_RENEGOTIATION_DISABLED
-#define DFL_ALLOW_LEGACY        -2
-#define DFL_RENEGOTIATE         0
-#define DFL_EXCHANGES           1
-#define DFL_MIN_VERSION         -1
-#define DFL_MAX_VERSION         -1
-#define DFL_ARC4                -1
-#define DFL_SHA1                -1
-#define DFL_AUTH_MODE           -1
-#define DFL_MFL_CODE            MBEDTLS_SSL_MAX_FRAG_LEN_NONE
-#define DFL_TRUNC_HMAC          -1
-#define DFL_RECSPLIT            -1
-#define DFL_DHMLEN              -1
-#define DFL_RECONNECT           0
-#define DFL_RECO_DELAY          0
-#define DFL_RECONNECT_HARD      0
-#define DFL_TICKETS             MBEDTLS_SSL_SESSION_TICKETS_ENABLED
-#define DFL_ALPN_STRING         NULL
-#define DFL_CURVES              NULL
-#define DFL_TRANSPORT           MBEDTLS_SSL_TRANSPORT_STREAM
-#define DFL_HS_TO_MIN           0
-#define DFL_HS_TO_MAX           0
-#define DFL_DTLS_MTU            -1
-#define DFL_DGRAM_PACKING        1
-#define DFL_FALLBACK            -1
-#define DFL_EXTENDED_MS         -1
-#define DFL_ETM                 -1
-#define DFL_CA_CALLBACK         0
-
-
-#define GET_REQUEST "GET %s HTTP/1.0\r\nExtra-header: "
-#define GET_REQUEST_END "\r\n\r\n"
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#define USAGE_CONTEXT_CRT_CB \
-    "    context_crt_cb=%%d   This determines whether the CRT verification callback is bound\n" \
-    "                        to the SSL configuration of the SSL context.\n" \
-    "                        Possible values:\n"\
-    "                        - 0 (default): Use CRT callback bound to configuration\n" \
-    "                        - 1: Use CRT callback bound to SSL context\n"
-#else
-#define USAGE_CONTEXT_CRT_CB ""
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_FS_IO)
-#define USAGE_IO \
-    "    ca_file=%%s          The single file containing the top-level CA(s) you fully trust\n" \
-    "                        default: \"\" (pre-loaded)\n" \
-    "    ca_path=%%s          The path containing the top-level CA(s) you fully trust\n" \
-    "                        default: \"\" (pre-loaded) (overrides ca_file)\n" \
-    "    crt_file=%%s         Your own cert and chain (in bottom to top order, top may be omitted)\n" \
-    "                        default: \"\" (pre-loaded)\n" \
-    "    key_file=%%s         default: \"\" (pre-loaded)\n"
-#else
-#define USAGE_IO \
-    "    No file operations available (MBEDTLS_FS_IO not defined)\n"
-#endif /* MBEDTLS_FS_IO */
-#else /* MBEDTLS_X509_CRT_PARSE_C */
-#define USAGE_IO ""
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-#if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_X509_CRT_PARSE_C)
-#define USAGE_KEY_OPAQUE \
-    "    key_opaque=%%d       Handle your private key as if it were opaque\n" \
-    "                        default: 0 (disabled)\n"
-#else
-#define USAGE_KEY_OPAQUE ""
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-#define USAGE_PSK_RAW                                               \
-    "    psk=%%s              default: \"\" (in hex, without 0x)\n" \
-    "    psk_identity=%%s     default: \"Client_identity\"\n"
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#define USAGE_PSK_SLOT                          \
-    "    psk_opaque=%%d       default: 0 (don't use opaque static PSK)\n"     \
-    "                          Enable this to store the PSK configured through command line\n" \
-    "                          parameter `psk` in a PSA-based key slot.\n" \
-    "                          Note: Currently only supported in conjunction with\n"                  \
-    "                          the use of min_version to force TLS 1.2 and force_ciphersuite \n"      \
-    "                          to force a particular PSK-only ciphersuite.\n"                         \
-    "                          Note: This is to test integration of PSA-based opaque PSKs with\n"     \
-    "                          Mbed TLS only. Production systems are likely to configure Mbed TLS\n"  \
-    "                          with prepopulated key slots instead of importing raw key material.\n"
-#else
-#define USAGE_PSK_SLOT ""
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-#define USAGE_PSK USAGE_PSK_RAW USAGE_PSK_SLOT
-#else
-#define USAGE_PSK ""
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-#define USAGE_CA_CALLBACK                       \
-    "   ca_callback=%%d       default: 0 (disabled)\n"      \
-    "                         Enable this to use the trusted certificate callback function\n"
-#else
-#define USAGE_CA_CALLBACK ""
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-#define USAGE_TICKETS                                       \
-    "    tickets=%%d          default: 1 (enabled)\n"
-#else
-#define USAGE_TICKETS ""
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-#define USAGE_TRUNC_HMAC                                    \
-    "    trunc_hmac=%%d       default: library default\n"
-#else
-#define USAGE_TRUNC_HMAC ""
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-#define USAGE_MAX_FRAG_LEN                                      \
-    "    max_frag_len=%%d     default: 16384 (tls default)\n"   \
-    "                        options: 512, 1024, 2048, 4096\n"
-#else
-#define USAGE_MAX_FRAG_LEN ""
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-#define USAGE_RECSPLIT \
-    "    recsplit=0/1        default: (library default: on)\n"
-#else
-#define USAGE_RECSPLIT
-#endif
-
-#if defined(MBEDTLS_DHM_C)
-#define USAGE_DHMLEN \
-    "    dhmlen=%%d           default: (library default: 1024 bits)\n"
-#else
-#define USAGE_DHMLEN
-#endif
-
-#if defined(MBEDTLS_SSL_ALPN)
-#define USAGE_ALPN \
-    "    alpn=%%s             default: \"\" (disabled)\n"   \
-    "                        example: spdy/1,http/1.1\n"
-#else
-#define USAGE_ALPN ""
-#endif /* MBEDTLS_SSL_ALPN */
-
-#if defined(MBEDTLS_ECP_C)
-#define USAGE_CURVES \
-    "    curves=a,b,c,d      default: \"default\" (library default)\n"  \
-    "                        example: \"secp521r1,brainpoolP512r1\"\n"  \
-    "                        - use \"none\" for empty list\n"           \
-    "                        - see mbedtls_ecp_curve_list()\n"          \
-    "                          for acceptable curve names\n"
-#else
-#define USAGE_CURVES ""
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-#define USAGE_DTLS \
-    "    dtls=%%d             default: 0 (TLS)\n"                           \
-    "    hs_timeout=%%d-%%d    default: (library default: 1000-60000)\n"    \
-    "                        range of DTLS handshake timeouts in millisecs\n" \
-    "    mtu=%%d              default: (library default: unlimited)\n"  \
-    "    dgram_packing=%%d    default: 1 (allowed)\n"                   \
-    "                        allow or forbid packing of multiple\n" \
-    "                        records within a single datgram.\n"
-#else
-#define USAGE_DTLS ""
-#endif
-
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
-#define USAGE_FALLBACK \
-    "    fallback=0/1        default: (library default: off)\n"
-#else
-#define USAGE_FALLBACK ""
-#endif
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-#define USAGE_EMS \
-    "    extended_ms=0/1     default: (library default: on)\n"
-#else
-#define USAGE_EMS ""
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-#define USAGE_ETM \
-    "    etm=0/1             default: (library default: on)\n"
-#else
-#define USAGE_ETM ""
-#endif
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-#define USAGE_RENEGO \
-    "    renegotiation=%%d    default: 0 (disabled)\n"      \
-    "    renegotiate=%%d      default: 0 (disabled)\n"
-#else
-#define USAGE_RENEGO ""
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-#define USAGE_ECJPAKE \
-    "    ecjpake_pw=%%s       default: none (disabled)\n"
-#else
-#define USAGE_ECJPAKE ""
-#endif
-
-#if defined(MBEDTLS_ECP_RESTARTABLE)
-#define USAGE_ECRESTART \
-    "    ec_max_ops=%%s       default: library default (restart disabled)\n"
-#else
-#define USAGE_ECRESTART ""
-#endif
-
-#define USAGE \
-    "\n usage: ssl_client2 param=<>...\n"                   \
-    "\n acceptable parameters:\n"                           \
-    "    server_name=%%s      default: localhost\n"         \
-    "    server_addr=%%s      default: given by name\n"     \
-    "    server_port=%%d      default: 4433\n"              \
-    "    request_page=%%s     default: \".\"\n"             \
-    "    request_size=%%d     default: about 34 (basic request)\n"           \
-    "                        (minimum: 0, max: " MAX_REQUEST_SIZE_STR ")\n"  \
-    "                        If 0, in the first exchange only an empty\n"    \
-    "                        application data message is sent followed by\n" \
-    "                        a second non-empty message before attempting\n" \
-    "                        to read a response from the server\n"           \
-    "    debug_level=%%d      default: 0 (disabled)\n"             \
-    "    nbio=%%d             default: 0 (blocking I/O)\n"         \
-    "                        options: 1 (non-blocking), 2 (added delays)\n"   \
-    "    event=%%d            default: 0 (loop)\n"                            \
-    "                        options: 1 (level-triggered, implies nbio=1),\n" \
-    "    read_timeout=%%d     default: 0 ms (no timeout)\n"        \
-    "    max_resend=%%d       default: 0 (no resend on timeout)\n" \
-    "\n"                                                    \
-    USAGE_DTLS                                              \
-    "\n"                                                    \
-    "    auth_mode=%%s        default: (library default: none)\n" \
-    "                        options: none, optional, required\n" \
-    USAGE_IO                                                \
-    USAGE_KEY_OPAQUE                                        \
-    USAGE_CA_CALLBACK                                       \
-    "\n"                                                    \
-    USAGE_PSK                                               \
-    USAGE_ECJPAKE                                           \
-    USAGE_ECRESTART                                         \
-    "\n"                                                    \
-    "    allow_legacy=%%d     default: (library default: no)\n"   \
-    USAGE_RENEGO                                            \
-    "    exchanges=%%d        default: 1\n"                 \
-    "    reconnect=%%d        default: 0 (disabled)\n"      \
-    "    reco_delay=%%d       default: 0 seconds\n"         \
-    "    reconnect_hard=%%d   default: 0 (disabled)\n"      \
-    USAGE_TICKETS                                           \
-    USAGE_MAX_FRAG_LEN                                      \
-    USAGE_TRUNC_HMAC                                        \
-    USAGE_CONTEXT_CRT_CB                                    \
-    USAGE_ALPN                                              \
-    USAGE_FALLBACK                                          \
-    USAGE_EMS                                               \
-    USAGE_ETM                                               \
-    USAGE_CURVES                                            \
-    USAGE_RECSPLIT                                          \
-    USAGE_DHMLEN                                            \
-    "\n"                                                    \
-    "    arc4=%%d             default: (library default: 0)\n" \
-    "    allow_sha1=%%d       default: 0\n"                             \
-    "    min_version=%%s      default: (library default: tls1)\n"       \
-    "    max_version=%%s      default: (library default: tls1_2)\n"     \
-    "    force_version=%%s    default: \"\" (none)\n"       \
-    "                        options: ssl3, tls1, tls1_1, tls1_2, dtls1, dtls1_2\n" \
-    "\n"                                                    \
-    "    force_ciphersuite=<name>    default: all enabled\n"\
-    "    query_config=<name>         return 0 if the specified\n"       \
-    "                                configuration macro is defined and 1\n"  \
-    "                                otherwise. The expansion of the macro\n" \
-    "                                is printed if it is defined\n"     \
-    " acceptable ciphersuite names:\n"
-
-#define ALPN_LIST_SIZE  10
-#define CURVE_LIST_SIZE 20
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#include "mbedtls/platform_util.h"
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-/*
- * global options
- */
-struct options
-{
-    const char *server_name;    /* hostname of the server (client only)     */
-    const char *server_addr;    /* address of the server (client only)      */
-    const char *server_port;    /* port on which the ssl service runs       */
-    int debug_level;            /* level of debugging                       */
-    int nbio;                   /* should I/O be blocking?                  */
-    int event;                  /* loop or event-driven IO? level or edge triggered? */
-    uint32_t read_timeout;      /* timeout on mbedtls_ssl_read() in milliseconds     */
-    int max_resend;             /* DTLS times to resend on read timeout     */
-    const char *request_page;   /* page on server to request                */
-    int request_size;           /* pad request with header to requested size */
-    const char *ca_file;        /* the file with the CA certificate(s)      */
-    const char *ca_path;        /* the path with the CA certificate(s) reside */
-    const char *crt_file;       /* the file with the client certificate     */
-    const char *key_file;       /* the file with the client key             */
-    int key_opaque;             /* handle private key as if it were opaque  */
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    int psk_opaque;
-#endif
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    int ca_callback;            /* Use callback for trusted certificate list */
-#endif
-    const char *psk;            /* the pre-shared key                       */
-    const char *psk_identity;   /* the pre-shared key identity              */
-    const char *ecjpake_pw;     /* the EC J-PAKE password                   */
-    int ec_max_ops;             /* EC consecutive operations limit          */
-    int force_ciphersuite[2];   /* protocol/ciphersuite to use, or all      */
-    int renegotiation;          /* enable / disable renegotiation           */
-    int allow_legacy;           /* allow legacy renegotiation               */
-    int renegotiate;            /* attempt renegotiation?                   */
-    int renego_delay;           /* delay before enforcing renegotiation     */
-    int exchanges;              /* number of data exchanges                 */
-    int min_version;            /* minimum protocol version accepted        */
-    int max_version;            /* maximum protocol version accepted        */
-    int arc4;                   /* flag for arc4 suites support             */
-    int allow_sha1;             /* flag for SHA-1 support                   */
-    int auth_mode;              /* verify mode for connection               */
-    unsigned char mfl_code;     /* code for maximum fragment length         */
-    int trunc_hmac;             /* negotiate truncated hmac or not          */
-    int recsplit;               /* enable record splitting?                 */
-    int dhmlen;                 /* minimum DHM params len in bits           */
-    int reconnect;              /* attempt to resume session                */
-    int reco_delay;             /* delay in seconds before resuming session */
-    int reconnect_hard;         /* unexpectedly reconnect from the same port */
-    int tickets;                /* enable / disable session tickets         */
-    const char *curves;         /* list of supported elliptic curves        */
-    const char *alpn_string;    /* ALPN supported protocols                 */
-    int transport;              /* TLS or DTLS?                             */
-    uint32_t hs_to_min;         /* Initial value of DTLS handshake timer    */
-    uint32_t hs_to_max;         /* Max value of DTLS handshake timer        */
-    int dtls_mtu;               /* UDP Maximum tranport unit for DTLS       */
-    int fallback;               /* is this a fallback connection?           */
-    int dgram_packing;          /* allow/forbid datagram packing            */
-    int extended_ms;            /* negotiate extended master secret?        */
-    int etm;                    /* negotiate encrypt then mac?              */
-    int context_crt_cb;         /* use context-specific CRT verify callback */
-} opt;
-
-int query_config( const char *config );
-
-static void my_debug( void *ctx, int level,
-                      const char *file, int line,
-                      const char *str )
-{
-    const char *p, *basename;
-
-    /* Extract basename from file */
-    for( p = basename = file; *p != '\0'; p++ )
-        if( *p == '/' || *p == '\\' )
-            basename = p + 1;
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: |%d| %s",
-                     basename, line, level, str );
-    fflush(  (FILE *) ctx  );
-}
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-int ca_callback( void *data, mbedtls_x509_crt const *child,
-                 mbedtls_x509_crt **candidates )
-{
-    int ret = 0;
-    mbedtls_x509_crt *ca = (mbedtls_x509_crt *) data;
-    mbedtls_x509_crt *first;
-
-    /* This is a test-only implementation of the CA callback
-     * which always returns the entire list of trusted certificates.
-     * Production implementations managing a large number of CAs
-     * should use an efficient presentation and lookup for the
-     * set of trusted certificates (such as a hashtable) and only
-     * return those trusted certificates which satisfy basic
-     * parental checks, such as the matching of child `Issuer`
-     * and parent `Subject` field or matching key identifiers. */
-    ((void) child);
-
-    first = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
-    if( first == NULL )
-    {
-        ret = -1;
-        goto exit;
-    }
-    mbedtls_x509_crt_init( first );
-
-    if( mbedtls_x509_crt_parse_der( first, ca->raw.p, ca->raw.len ) != 0 )
-    {
-        ret = -1;
-        goto exit;
-    }
-
-    while( ca->next != NULL )
-    {
-        ca = ca->next;
-        if( mbedtls_x509_crt_parse_der( first, ca->raw.p, ca->raw.len ) != 0 )
-        {
-            ret = -1;
-            goto exit;
-        }
-    }
-
-exit:
-
-    if( ret != 0 )
-    {
-        mbedtls_x509_crt_free( first );
-        mbedtls_free( first );
-        first = NULL;
-    }
-
-    *candidates = first;
-    return( ret );
-}
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-
-/*
- * Test recv/send functions that make sure each try returns
- * WANT_READ/WANT_WRITE at least once before sucesseding
- */
-static int my_recv( void *ctx, unsigned char *buf, size_t len )
-{
-    static int first_try = 1;
-    int ret;
-
-    if( first_try )
-    {
-        first_try = 0;
-        return( MBEDTLS_ERR_SSL_WANT_READ );
-    }
-
-    ret = mbedtls_net_recv( ctx, buf, len );
-    if( ret != MBEDTLS_ERR_SSL_WANT_READ )
-        first_try = 1; /* Next call will be a new operation */
-    return( ret );
-}
-
-static int my_send( void *ctx, const unsigned char *buf, size_t len )
-{
-    static int first_try = 1;
-    int ret;
-
-    if( first_try )
-    {
-        first_try = 0;
-        return( MBEDTLS_ERR_SSL_WANT_WRITE );
-    }
-
-    ret = mbedtls_net_send( ctx, buf, len );
-    if( ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        first_try = 1; /* Next call will be a new operation */
-    return( ret );
-}
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-static unsigned char peer_crt_info[1024];
-
-/*
- * Enabled if debug_level > 1 in code below
- */
-static int my_verify( void *data, mbedtls_x509_crt *crt,
-                      int depth, uint32_t *flags )
-{
-    char buf[1024];
-    ((void) data);
-
-    mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt );
-    if( depth == 0 )
-        memcpy( peer_crt_info, buf, sizeof( buf ) );
-
-    if( opt.debug_level == 0 )
-        return( 0 );
-
-    mbedtls_printf( "\nVerify requested for (Depth %d):\n", depth );
-    mbedtls_printf( "%s", buf );
-
-    if ( ( *flags ) == 0 )
-        mbedtls_printf( "  This certificate has no flags\n" );
-    else
-    {
-        mbedtls_x509_crt_verify_info( buf, sizeof( buf ), "  ! ", *flags );
-        mbedtls_printf( "%s\n", buf );
-    }
-
-    return( 0 );
-}
-
-static int ssl_sig_hashes_for_test[] = {
-#if defined(MBEDTLS_SHA512_C)
-    MBEDTLS_MD_SHA512,
-    MBEDTLS_MD_SHA384,
-#endif
-#if defined(MBEDTLS_SHA256_C)
-    MBEDTLS_MD_SHA256,
-    MBEDTLS_MD_SHA224,
-#endif
-#if defined(MBEDTLS_SHA1_C)
-    /* Allow SHA-1 as we use it extensively in tests. */
-    MBEDTLS_MD_SHA1,
-#endif
-    MBEDTLS_MD_NONE
-};
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-/*
- * Wait for an event from the underlying transport or the timer
- * (Used in event-driven IO mode).
- */
-#if !defined(MBEDTLS_TIMING_C)
-int idle( mbedtls_net_context *fd,
-          int idle_reason )
-#else
-int idle( mbedtls_net_context *fd,
-          mbedtls_timing_delay_context *timer,
-          int idle_reason )
-#endif
-{
-
-    int ret;
-    int poll_type = 0;
-
-    if( idle_reason == MBEDTLS_ERR_SSL_WANT_WRITE )
-        poll_type = MBEDTLS_NET_POLL_WRITE;
-    else if( idle_reason == MBEDTLS_ERR_SSL_WANT_READ )
-        poll_type = MBEDTLS_NET_POLL_READ;
-#if !defined(MBEDTLS_TIMING_C)
-    else
-        return( 0 );
-#endif
-
-    while( 1 )
-    {
-        /* Check if timer has expired */
-#if defined(MBEDTLS_TIMING_C)
-        if( timer != NULL &&
-            mbedtls_timing_get_delay( timer ) == 2 )
-        {
-            break;
-        }
-#endif /* MBEDTLS_TIMING_C */
-
-        /* Check if underlying transport became available */
-        if( poll_type != 0 )
-        {
-            ret = mbedtls_net_poll( fd, poll_type, 0 );
-            if( ret < 0 )
-                return( ret );
-            if( ret == poll_type )
-                break;
-        }
-    }
-
-    return( 0 );
-}
-
-int main( int argc, char *argv[] )
-{
-    int ret = 0, len, tail_len, i, written, frags, retry_left;
-    mbedtls_net_context server_fd;
-
-    unsigned char buf[MAX_REQUEST_SIZE + 1];
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    unsigned char psk[MBEDTLS_PSK_MAX_LEN];
-    size_t psk_len = 0;
-#endif
-#if defined(MBEDTLS_SSL_ALPN)
-    const char *alpn_list[ALPN_LIST_SIZE];
-#endif
-#if defined(MBEDTLS_ECP_C)
-    mbedtls_ecp_group_id curve_list[CURVE_LIST_SIZE];
-    const mbedtls_ecp_curve_info *curve_cur;
-#endif
-
-    const char *pers = "ssl_client2";
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_key_handle_t slot = 0;
-    psa_algorithm_t alg = 0;
-    psa_key_policy_t policy;
-    psa_status_t status;
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_x509_crt_profile crt_profile_for_test = mbedtls_x509_crt_profile_default;
-#endif
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_context ssl;
-    mbedtls_ssl_config conf;
-    mbedtls_ssl_session saved_session;
-#if defined(MBEDTLS_TIMING_C)
-    mbedtls_timing_delay_context timer;
-#endif
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    uint32_t flags;
-    mbedtls_x509_crt cacert;
-    mbedtls_x509_crt clicert;
-    mbedtls_pk_context pkey;
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_key_handle_t key_slot = 0; /* invalid key slot */
-#endif
-#endif
-    char *p, *q;
-    const int *list;
-
-    /*
-     * Make sure memory references are valid.
-     */
-    mbedtls_net_init( &server_fd );
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-    memset( &saved_session, 0, sizeof( mbedtls_ssl_session ) );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_x509_crt_init( &cacert );
-    mbedtls_x509_crt_init( &clicert );
-    mbedtls_pk_init( &pkey );
-#endif
-#if defined(MBEDTLS_SSL_ALPN)
-    memset( (void * ) alpn_list, 0, sizeof( alpn_list ) );
-#endif
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    status = psa_crypto_init();
-    if( status != PSA_SUCCESS )
-    {
-        mbedtls_fprintf( stderr, "Failed to initialize PSA Crypto implementation: %d\n",
-                         (int) status );
-        ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
-        goto exit;
-    }
-#endif
-
-    if( argc == 0 )
-    {
-    usage:
-        if( ret == 0 )
-            ret = 1;
-
-        mbedtls_printf( USAGE );
-
-        list = mbedtls_ssl_list_ciphersuites();
-        while( *list )
-        {
-            mbedtls_printf(" %-42s", mbedtls_ssl_get_ciphersuite_name( *list ) );
-            list++;
-            if( !*list )
-                break;
-            mbedtls_printf(" %s\n", mbedtls_ssl_get_ciphersuite_name( *list ) );
-            list++;
-        }
-        mbedtls_printf("\n");
-        goto exit;
-    }
-
-    opt.server_name         = DFL_SERVER_NAME;
-    opt.server_addr         = DFL_SERVER_ADDR;
-    opt.server_port         = DFL_SERVER_PORT;
-    opt.debug_level         = DFL_DEBUG_LEVEL;
-    opt.nbio                = DFL_NBIO;
-    opt.event               = DFL_EVENT;
-    opt.context_crt_cb      = DFL_CONTEXT_CRT_CB;
-    opt.read_timeout        = DFL_READ_TIMEOUT;
-    opt.max_resend          = DFL_MAX_RESEND;
-    opt.request_page        = DFL_REQUEST_PAGE;
-    opt.request_size        = DFL_REQUEST_SIZE;
-    opt.ca_file             = DFL_CA_FILE;
-    opt.ca_path             = DFL_CA_PATH;
-    opt.crt_file            = DFL_CRT_FILE;
-    opt.key_file            = DFL_KEY_FILE;
-    opt.key_opaque          = DFL_KEY_OPAQUE;
-    opt.psk                 = DFL_PSK;
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    opt.psk_opaque          = DFL_PSK_OPAQUE;
-#endif
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    opt.ca_callback         = DFL_CA_CALLBACK;
-#endif
-    opt.psk_identity        = DFL_PSK_IDENTITY;
-    opt.ecjpake_pw          = DFL_ECJPAKE_PW;
-    opt.ec_max_ops          = DFL_EC_MAX_OPS;
-    opt.force_ciphersuite[0]= DFL_FORCE_CIPHER;
-    opt.renegotiation       = DFL_RENEGOTIATION;
-    opt.allow_legacy        = DFL_ALLOW_LEGACY;
-    opt.renegotiate         = DFL_RENEGOTIATE;
-    opt.exchanges           = DFL_EXCHANGES;
-    opt.min_version         = DFL_MIN_VERSION;
-    opt.max_version         = DFL_MAX_VERSION;
-    opt.arc4                = DFL_ARC4;
-    opt.allow_sha1          = DFL_SHA1;
-    opt.auth_mode           = DFL_AUTH_MODE;
-    opt.mfl_code            = DFL_MFL_CODE;
-    opt.trunc_hmac          = DFL_TRUNC_HMAC;
-    opt.recsplit            = DFL_RECSPLIT;
-    opt.dhmlen              = DFL_DHMLEN;
-    opt.reconnect           = DFL_RECONNECT;
-    opt.reco_delay          = DFL_RECO_DELAY;
-    opt.reconnect_hard      = DFL_RECONNECT_HARD;
-    opt.tickets             = DFL_TICKETS;
-    opt.alpn_string         = DFL_ALPN_STRING;
-    opt.curves              = DFL_CURVES;
-    opt.transport           = DFL_TRANSPORT;
-    opt.hs_to_min           = DFL_HS_TO_MIN;
-    opt.hs_to_max           = DFL_HS_TO_MAX;
-    opt.dtls_mtu            = DFL_DTLS_MTU;
-    opt.fallback            = DFL_FALLBACK;
-    opt.extended_ms         = DFL_EXTENDED_MS;
-    opt.etm                 = DFL_ETM;
-    opt.dgram_packing       = DFL_DGRAM_PACKING;
-
-    for( i = 1; i < argc; i++ )
-    {
-        p = argv[i];
-        if( ( q = strchr( p, '=' ) ) == NULL )
-            goto usage;
-        *q++ = '\0';
-
-        if( strcmp( p, "server_name" ) == 0 )
-            opt.server_name = q;
-        else if( strcmp( p, "server_addr" ) == 0 )
-            opt.server_addr = q;
-        else if( strcmp( p, "server_port" ) == 0 )
-            opt.server_port = q;
-        else if( strcmp( p, "dtls" ) == 0 )
-        {
-            int t = atoi( q );
-            if( t == 0 )
-                opt.transport = MBEDTLS_SSL_TRANSPORT_STREAM;
-            else if( t == 1 )
-                opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM;
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "debug_level" ) == 0 )
-        {
-            opt.debug_level = atoi( q );
-            if( opt.debug_level < 0 || opt.debug_level > 65535 )
-                goto usage;
-        }
-        else if( strcmp( p, "context_crt_cb" ) == 0 )
-        {
-            opt.context_crt_cb = atoi( q );
-            if( opt.context_crt_cb != 0 && opt.context_crt_cb != 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "nbio" ) == 0 )
-        {
-            opt.nbio = atoi( q );
-            if( opt.nbio < 0 || opt.nbio > 2 )
-                goto usage;
-        }
-        else if( strcmp( p, "event" ) == 0 )
-        {
-            opt.event = atoi( q );
-            if( opt.event < 0 || opt.event > 2 )
-                goto usage;
-        }
-        else if( strcmp( p, "read_timeout" ) == 0 )
-            opt.read_timeout = atoi( q );
-        else if( strcmp( p, "max_resend" ) == 0 )
-        {
-            opt.max_resend = atoi( q );
-            if( opt.max_resend < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "request_page" ) == 0 )
-            opt.request_page = q;
-        else if( strcmp( p, "request_size" ) == 0 )
-        {
-            opt.request_size = atoi( q );
-            if( opt.request_size < 0 ||
-                opt.request_size > MAX_REQUEST_SIZE )
-                goto usage;
-        }
-        else if( strcmp( p, "ca_file" ) == 0 )
-            opt.ca_file = q;
-        else if( strcmp( p, "ca_path" ) == 0 )
-            opt.ca_path = q;
-        else if( strcmp( p, "crt_file" ) == 0 )
-            opt.crt_file = q;
-        else if( strcmp( p, "key_file" ) == 0 )
-            opt.key_file = q;
-#if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_X509_CRT_PARSE_C)
-        else if( strcmp( p, "key_opaque" ) == 0 )
-            opt.key_opaque = atoi( q );
-#endif
-        else if( strcmp( p, "psk" ) == 0 )
-            opt.psk = q;
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        else if( strcmp( p, "psk_opaque" ) == 0 )
-            opt.psk_opaque = atoi( q );
-#endif
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-        else if( strcmp( p, "ca_callback" ) == 0)
-            opt.ca_callback = atoi( q );
-#endif
-        else if( strcmp( p, "psk_identity" ) == 0 )
-            opt.psk_identity = q;
-        else if( strcmp( p, "ecjpake_pw" ) == 0 )
-            opt.ecjpake_pw = q;
-        else if( strcmp( p, "ec_max_ops" ) == 0 )
-            opt.ec_max_ops = atoi( q );
-        else if( strcmp( p, "force_ciphersuite" ) == 0 )
-        {
-            opt.force_ciphersuite[0] = mbedtls_ssl_get_ciphersuite_id( q );
-
-            if( opt.force_ciphersuite[0] == 0 )
-            {
-                ret = 2;
-                goto usage;
-            }
-            opt.force_ciphersuite[1] = 0;
-        }
-        else if( strcmp( p, "renegotiation" ) == 0 )
-        {
-            opt.renegotiation = (atoi( q )) ?
-                MBEDTLS_SSL_RENEGOTIATION_ENABLED :
-                MBEDTLS_SSL_RENEGOTIATION_DISABLED;
-        }
-        else if( strcmp( p, "allow_legacy" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case -1:
-                    opt.allow_legacy = MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE;
-                    break;
-                case 0:
-                    opt.allow_legacy = MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION;
-                    break;
-                case 1:
-                    opt.allow_legacy = MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION;
-                    break;
-                default: goto usage;
-            }
-        }
-        else if( strcmp( p, "renegotiate" ) == 0 )
-        {
-            opt.renegotiate = atoi( q );
-            if( opt.renegotiate < 0 || opt.renegotiate > 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "exchanges" ) == 0 )
-        {
-            opt.exchanges = atoi( q );
-            if( opt.exchanges < 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "reconnect" ) == 0 )
-        {
-            opt.reconnect = atoi( q );
-            if( opt.reconnect < 0 || opt.reconnect > 2 )
-                goto usage;
-        }
-        else if( strcmp( p, "reco_delay" ) == 0 )
-        {
-            opt.reco_delay = atoi( q );
-            if( opt.reco_delay < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "reconnect_hard" ) == 0 )
-        {
-            opt.reconnect_hard = atoi( q );
-            if( opt.reconnect_hard < 0 || opt.reconnect_hard > 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "tickets" ) == 0 )
-        {
-            opt.tickets = atoi( q );
-            if( opt.tickets < 0 || opt.tickets > 2 )
-                goto usage;
-        }
-        else if( strcmp( p, "alpn" ) == 0 )
-        {
-            opt.alpn_string = q;
-        }
-        else if( strcmp( p, "fallback" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0: opt.fallback = MBEDTLS_SSL_IS_NOT_FALLBACK; break;
-                case 1: opt.fallback = MBEDTLS_SSL_IS_FALLBACK; break;
-                default: goto usage;
-            }
-        }
-        else if( strcmp( p, "extended_ms" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0:
-                    opt.extended_ms = MBEDTLS_SSL_EXTENDED_MS_DISABLED;
-                    break;
-                case 1:
-                    opt.extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
-                    break;
-                default: goto usage;
-            }
-        }
-        else if( strcmp( p, "curves" ) == 0 )
-            opt.curves = q;
-        else if( strcmp( p, "etm" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0: opt.etm = MBEDTLS_SSL_ETM_DISABLED; break;
-                case 1: opt.etm = MBEDTLS_SSL_ETM_ENABLED; break;
-                default: goto usage;
-            }
-        }
-        else if( strcmp( p, "min_version" ) == 0 )
-        {
-            if( strcmp( q, "ssl3" ) == 0 )
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_0;
-            else if( strcmp( q, "tls1" ) == 0 )
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_1;
-            else if( strcmp( q, "tls1_1" ) == 0 ||
-                     strcmp( q, "dtls1" ) == 0 )
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
-            else if( strcmp( q, "tls1_2" ) == 0 ||
-                     strcmp( q, "dtls1_2" ) == 0 )
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3;
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "max_version" ) == 0 )
-        {
-            if( strcmp( q, "ssl3" ) == 0 )
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_0;
-            else if( strcmp( q, "tls1" ) == 0 )
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_1;
-            else if( strcmp( q, "tls1_1" ) == 0 ||
-                     strcmp( q, "dtls1" ) == 0 )
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2;
-            else if( strcmp( q, "tls1_2" ) == 0 ||
-                     strcmp( q, "dtls1_2" ) == 0 )
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3;
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "arc4" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0:     opt.arc4 = MBEDTLS_SSL_ARC4_DISABLED;   break;
-                case 1:     opt.arc4 = MBEDTLS_SSL_ARC4_ENABLED;    break;
-                default:    goto usage;
-            }
-        }
-        else if( strcmp( p, "allow_sha1" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0:     opt.allow_sha1 = 0;   break;
-                case 1:     opt.allow_sha1 = 1;    break;
-                default:    goto usage;
-            }
-        }
-        else if( strcmp( p, "force_version" ) == 0 )
-        {
-            if( strcmp( q, "ssl3" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_0;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_0;
-            }
-            else if( strcmp( q, "tls1" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_1;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_1;
-            }
-            else if( strcmp( q, "tls1_1" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2;
-            }
-            else if( strcmp( q, "tls1_2" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3;
-            }
-            else if( strcmp( q, "dtls1" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2;
-                opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM;
-            }
-            else if( strcmp( q, "dtls1_2" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3;
-                opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM;
-            }
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "auth_mode" ) == 0 )
-        {
-            if( strcmp( q, "none" ) == 0 )
-                opt.auth_mode = MBEDTLS_SSL_VERIFY_NONE;
-            else if( strcmp( q, "optional" ) == 0 )
-                opt.auth_mode = MBEDTLS_SSL_VERIFY_OPTIONAL;
-            else if( strcmp( q, "required" ) == 0 )
-                opt.auth_mode = MBEDTLS_SSL_VERIFY_REQUIRED;
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "max_frag_len" ) == 0 )
-        {
-            if( strcmp( q, "512" ) == 0 )
-                opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_512;
-            else if( strcmp( q, "1024" ) == 0 )
-                opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_1024;
-            else if( strcmp( q, "2048" ) == 0 )
-                opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_2048;
-            else if( strcmp( q, "4096" ) == 0 )
-                opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_4096;
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "trunc_hmac" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0: opt.trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_DISABLED; break;
-                case 1: opt.trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED; break;
-                default: goto usage;
-            }
-        }
-        else if( strcmp( p, "hs_timeout" ) == 0 )
-        {
-            if( ( p = strchr( q, '-' ) ) == NULL )
-                goto usage;
-            *p++ = '\0';
-            opt.hs_to_min = atoi( q );
-            opt.hs_to_max = atoi( p );
-            if( opt.hs_to_min == 0 || opt.hs_to_max < opt.hs_to_min )
-                goto usage;
-        }
-        else if( strcmp( p, "mtu" ) == 0 )
-        {
-            opt.dtls_mtu = atoi( q );
-            if( opt.dtls_mtu < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "dgram_packing" ) == 0 )
-        {
-            opt.dgram_packing = atoi( q );
-            if( opt.dgram_packing != 0 &&
-                opt.dgram_packing != 1 )
-            {
-                goto usage;
-            }
-        }
-        else if( strcmp( p, "recsplit" ) == 0 )
-        {
-            opt.recsplit = atoi( q );
-            if( opt.recsplit < 0 || opt.recsplit > 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "dhmlen" ) == 0 )
-        {
-            opt.dhmlen = atoi( q );
-            if( opt.dhmlen < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "query_config" ) == 0 )
-        {
-            return query_config( q );
-        }
-        else
-            goto usage;
-    }
-
-    /* Event-driven IO is incompatible with the above custom
-     * receive and send functions, as the polling builds on
-     * refers to the underlying net_context. */
-    if( opt.event == 1 && opt.nbio != 1 )
-    {
-        mbedtls_printf( "Warning: event-driven IO mandates nbio=1 - overwrite\n" );
-        opt.nbio = 1;
-    }
-
-#if defined(MBEDTLS_DEBUG_C)
-    mbedtls_debug_set_threshold( opt.debug_level );
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    /*
-     * Unhexify the pre-shared key if any is given
-     */
-    if( strlen( opt.psk ) )
-    {
-        unsigned char c;
-        size_t j;
-
-        if( strlen( opt.psk ) % 2 != 0 )
-        {
-            mbedtls_printf( "pre-shared key not valid hex\n" );
-            goto exit;
-        }
-
-        psk_len = strlen( opt.psk ) / 2;
-
-        for( j = 0; j < strlen( opt.psk ); j += 2 )
-        {
-            c = opt.psk[j];
-            if( c >= '0' && c <= '9' )
-                c -= '0';
-            else if( c >= 'a' && c <= 'f' )
-                c -= 'a' - 10;
-            else if( c >= 'A' && c <= 'F' )
-                c -= 'A' - 10;
-            else
-            {
-                mbedtls_printf( "pre-shared key not valid hex\n" );
-                goto exit;
-            }
-            psk[ j / 2 ] = c << 4;
-
-            c = opt.psk[j + 1];
-            if( c >= '0' && c <= '9' )
-                c -= '0';
-            else if( c >= 'a' && c <= 'f' )
-                c -= 'a' - 10;
-            else if( c >= 'A' && c <= 'F' )
-                c -= 'A' - 10;
-            else
-            {
-                mbedtls_printf( "pre-shared key not valid hex\n" );
-                goto exit;
-            }
-            psk[ j / 2 ] |= c;
-        }
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( opt.psk_opaque != 0 )
-    {
-        if( opt.psk == NULL )
-        {
-            mbedtls_printf( "psk_opaque set but no psk to be imported specified.\n" );
-            ret = 2;
-            goto usage;
-        }
-
-        if( opt.force_ciphersuite[0] <= 0 )
-        {
-            mbedtls_printf( "opaque PSKs are only supported in conjunction with forcing TLS 1.2 and a PSK-only ciphersuite through the 'force_ciphersuite' option.\n" );
-            ret = 2;
-            goto usage;
-        }
-    }
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-    if( opt.force_ciphersuite[0] > 0 )
-    {
-        const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
-        ciphersuite_info =
-            mbedtls_ssl_ciphersuite_from_id( opt.force_ciphersuite[0] );
-
-        if( opt.max_version != -1 &&
-            ciphersuite_info->min_minor_ver > opt.max_version )
-        {
-            mbedtls_printf( "forced ciphersuite not allowed with this protocol version\n" );
-            ret = 2;
-            goto usage;
-        }
-        if( opt.min_version != -1 &&
-            ciphersuite_info->max_minor_ver < opt.min_version )
-        {
-            mbedtls_printf( "forced ciphersuite not allowed with this protocol version\n" );
-            ret = 2;
-            goto usage;
-        }
-
-        /* If the server selects a version that's not supported by
-         * this suite, then there will be no common ciphersuite... */
-        if( opt.max_version == -1 ||
-            opt.max_version > ciphersuite_info->max_minor_ver )
-        {
-            opt.max_version = ciphersuite_info->max_minor_ver;
-        }
-        if( opt.min_version < ciphersuite_info->min_minor_ver )
-        {
-            opt.min_version = ciphersuite_info->min_minor_ver;
-            /* DTLS starts with TLS 1.1 */
-            if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-                opt.min_version < MBEDTLS_SSL_MINOR_VERSION_2 )
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
-        }
-
-        /* Enable RC4 if needed and not explicitly disabled */
-        if( ciphersuite_info->cipher == MBEDTLS_CIPHER_ARC4_128 )
-        {
-            if( opt.arc4 == MBEDTLS_SSL_ARC4_DISABLED )
-            {
-                mbedtls_printf( "forced RC4 ciphersuite with RC4 disabled\n" );
-                ret = 2;
-                goto usage;
-            }
-
-            opt.arc4 = MBEDTLS_SSL_ARC4_ENABLED;
-        }
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        if( opt.psk_opaque != 0 )
-        {
-            /* Ensure that the chosen ciphersuite is PSK-only; we must know
-             * the ciphersuite in advance to set the correct policy for the
-             * PSK key slot. This limitation might go away in the future. */
-            if( ciphersuite_info->key_exchange != MBEDTLS_KEY_EXCHANGE_PSK ||
-                opt.min_version != MBEDTLS_SSL_MINOR_VERSION_3 )
-            {
-                mbedtls_printf( "opaque PSKs are only supported in conjunction with forcing TLS 1.2 and a PSK-only ciphersuite through the 'force_ciphersuite' option.\n" );
-                ret = 2;
-                goto usage;
-            }
-
-            /* Determine KDF algorithm the opaque PSK will be used in. */
-#if defined(MBEDTLS_SHA512_C)
-            if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
-                alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_384);
-            else
-#endif /* MBEDTLS_SHA512_C */
-                alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_256);
-        }
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    }
-
-#if defined(MBEDTLS_ECP_C)
-    if( opt.curves != NULL )
-    {
-        p = (char *) opt.curves;
-        i = 0;
-
-        if( strcmp( p, "none" ) == 0 )
-        {
-            curve_list[0] = MBEDTLS_ECP_DP_NONE;
-        }
-        else if( strcmp( p, "default" ) != 0 )
-        {
-            /* Leave room for a final NULL in curve list */
-            while( i < CURVE_LIST_SIZE - 1 && *p != '\0' )
-            {
-                q = p;
-
-                /* Terminate the current string */
-                while( *p != ',' && *p != '\0' )
-                    p++;
-                if( *p == ',' )
-                    *p++ = '\0';
-
-                if( ( curve_cur = mbedtls_ecp_curve_info_from_name( q ) ) != NULL )
-                {
-                    curve_list[i++] = curve_cur->grp_id;
-                }
-                else
-                {
-                    mbedtls_printf( "unknown curve %s\n", q );
-                    mbedtls_printf( "supported curves: " );
-                    for( curve_cur = mbedtls_ecp_curve_list();
-                         curve_cur->grp_id != MBEDTLS_ECP_DP_NONE;
-                         curve_cur++ )
-                    {
-                        mbedtls_printf( "%s ", curve_cur->name );
-                    }
-                    mbedtls_printf( "\n" );
-                    goto exit;
-                }
-            }
-
-            mbedtls_printf("Number of curves: %d\n", i );
-
-            if( i == CURVE_LIST_SIZE - 1 && *p != '\0' )
-            {
-                mbedtls_printf( "curves list too long, maximum %d",
-                                CURVE_LIST_SIZE - 1 );
-                goto exit;
-            }
-
-            curve_list[i] = MBEDTLS_ECP_DP_NONE;
-        }
-    }
-#endif /* MBEDTLS_ECP_C */
-
-#if defined(MBEDTLS_SSL_ALPN)
-    if( opt.alpn_string != NULL )
-    {
-        p = (char *) opt.alpn_string;
-        i = 0;
-
-        /* Leave room for a final NULL in alpn_list */
-        while( i < ALPN_LIST_SIZE - 1 && *p != '\0' )
-        {
-            alpn_list[i++] = p;
-
-            /* Terminate the current string and move on to next one */
-            while( *p != ',' && *p != '\0' )
-                p++;
-            if( *p == ',' )
-                *p++ = '\0';
-        }
-    }
-#endif /* MBEDTLS_SSL_ALPN */
-
-    /*
-     * 0. Initialize the RNG and the session data
-     */
-    mbedtls_printf( "\n  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    mbedtls_entropy_init( &entropy );
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
-                                       &entropy, (const unsigned char *) pers,
-                                       strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned -0x%x\n",
-                        -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    /*
-     * 1.1. Load the trusted CA
-     */
-    mbedtls_printf( "  . Loading the CA root certificate ..." );
-    fflush( stdout );
-
-#if defined(MBEDTLS_FS_IO)
-    if( strlen( opt.ca_path ) )
-        if( strcmp( opt.ca_path, "none" ) == 0 )
-            ret = 0;
-        else
-            ret = mbedtls_x509_crt_parse_path( &cacert, opt.ca_path );
-    else if( strlen( opt.ca_file ) )
-        if( strcmp( opt.ca_file, "none" ) == 0 )
-            ret = 0;
-        else
-            ret = mbedtls_x509_crt_parse_file( &cacert, opt.ca_file );
-    else
-#endif
-#if defined(MBEDTLS_CERTS_C)
-        for( i = 0; mbedtls_test_cas[i] != NULL; i++ )
-        {
-            ret = mbedtls_x509_crt_parse( &cacert,
-                                  (const unsigned char *) mbedtls_test_cas[i],
-                                  mbedtls_test_cas_len[i] );
-            if( ret != 0 )
-                break;
-        }
-#else
-    {
-        ret = 1;
-        mbedtls_printf( "MBEDTLS_CERTS_C not defined." );
-    }
-#endif
-    if( ret < 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned -0x%x\n\n",
-                        -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok (%d skipped)\n", ret );
-
-    /*
-     * 1.2. Load own certificate and private key
-     *
-     * (can be skipped if client authentication is not required)
-     */
-    mbedtls_printf( "  . Loading the client cert. and key..." );
-    fflush( stdout );
-
-#if defined(MBEDTLS_FS_IO)
-    if( strlen( opt.crt_file ) )
-        if( strcmp( opt.crt_file, "none" ) == 0 )
-            ret = 0;
-        else
-            ret = mbedtls_x509_crt_parse_file( &clicert, opt.crt_file );
-    else
-#endif
-#if defined(MBEDTLS_CERTS_C)
-        ret = mbedtls_x509_crt_parse( &clicert,
-                (const unsigned char *) mbedtls_test_cli_crt,
-                mbedtls_test_cli_crt_len );
-#else
-    {
-        ret = 1;
-        mbedtls_printf("MBEDTLS_CERTS_C not defined.");
-    }
-#endif
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned -0x%x\n\n",
-                        -ret );
-        goto exit;
-    }
-
-#if defined(MBEDTLS_FS_IO)
-    if( strlen( opt.key_file ) )
-        if( strcmp( opt.key_file, "none" ) == 0 )
-            ret = 0;
-        else
-            ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file, "" );
-    else
-#endif
-#if defined(MBEDTLS_CERTS_C)
-        ret = mbedtls_pk_parse_key( &pkey,
-                (const unsigned char *) mbedtls_test_cli_key,
-                mbedtls_test_cli_key_len, NULL, 0 );
-#else
-    {
-        ret = 1;
-        mbedtls_printf("MBEDTLS_CERTS_C not defined.");
-    }
-#endif
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_pk_parse_key returned -0x%x\n\n",
-                        -ret );
-        goto exit;
-    }
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( opt.key_opaque != 0 )
-    {
-        if( ( ret = mbedtls_pk_wrap_as_opaque( &pkey, &key_slot,
-                                               PSA_ALG_SHA_256 ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  "
-                            "mbedtls_pk_wrap_as_opaque returned -0x%x\n\n", -ret );
-            goto exit;
-        }
-    }
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-    mbedtls_printf( " ok (key type: %s)\n", mbedtls_pk_get_name( &pkey ) );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    /*
-     * 2. Start the connection
-     */
-    if( opt.server_addr == NULL)
-        opt.server_addr = opt.server_name;
-
-    mbedtls_printf( "  . Connecting to %s/%s/%s...",
-            opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ? "tcp" : "udp",
-            opt.server_addr, opt.server_port );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_connect( &server_fd,
-                       opt.server_addr, opt.server_port,
-                       opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ?
-                       MBEDTLS_NET_PROTO_TCP : MBEDTLS_NET_PROTO_UDP ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_connect returned -0x%x\n\n",
-                        -ret );
-        goto exit;
-    }
-
-    if( opt.nbio > 0 )
-        ret = mbedtls_net_set_nonblock( &server_fd );
-    else
-        ret = mbedtls_net_set_block( &server_fd );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! net_set_(non)block() returned -0x%x\n\n",
-                        -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 3. Setup stuff
-     */
-    mbedtls_printf( "  . Setting up the SSL/TLS structure..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ssl_config_defaults( &conf,
-                    MBEDTLS_SSL_IS_CLIENT,
-                    opt.transport,
-                    MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_config_defaults returned -0x%x\n\n",
-                        -ret );
-        goto exit;
-    }
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    /* The default algorithms profile disables SHA-1, but our tests still
-       rely on it heavily. */
-    if( opt.allow_sha1 > 0 )
-    {
-        crt_profile_for_test.allowed_mds |= MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA1 );
-        mbedtls_ssl_conf_cert_profile( &conf, &crt_profile_for_test );
-        mbedtls_ssl_conf_sig_hashes( &conf, ssl_sig_hashes_for_test );
-    }
-
-    if( opt.context_crt_cb == 0 )
-        mbedtls_ssl_conf_verify( &conf, my_verify, NULL );
-
-    memset( peer_crt_info, 0, sizeof( peer_crt_info ) );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    if( opt.auth_mode != DFL_AUTH_MODE )
-        mbedtls_ssl_conf_authmode( &conf, opt.auth_mode );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( opt.hs_to_min != DFL_HS_TO_MIN || opt.hs_to_max != DFL_HS_TO_MAX )
-        mbedtls_ssl_conf_handshake_timeout( &conf, opt.hs_to_min,
-                                            opt.hs_to_max );
-
-    if( opt.dgram_packing != DFL_DGRAM_PACKING )
-        mbedtls_ssl_set_datagram_packing( &ssl, opt.dgram_packing );
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    if( ( ret = mbedtls_ssl_conf_max_frag_len( &conf, opt.mfl_code ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_max_frag_len returned %d\n\n",
-                        ret );
-        goto exit;
-    }
-#endif
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    if( opt.trunc_hmac != DFL_TRUNC_HMAC )
-        mbedtls_ssl_conf_truncated_hmac( &conf, opt.trunc_hmac );
-#endif
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    if( opt.extended_ms != DFL_EXTENDED_MS )
-        mbedtls_ssl_conf_extended_master_secret( &conf, opt.extended_ms );
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    if( opt.etm != DFL_ETM )
-        mbedtls_ssl_conf_encrypt_then_mac( &conf, opt.etm );
-#endif
-
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-    if( opt.recsplit != DFL_RECSPLIT )
-        mbedtls_ssl_conf_cbc_record_splitting( &conf, opt.recsplit
-                                  ? MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED
-                                  : MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED );
-#endif
-
-#if defined(MBEDTLS_DHM_C)
-    if( opt.dhmlen != DFL_DHMLEN )
-        mbedtls_ssl_conf_dhm_min_bitlen( &conf, opt.dhmlen );
-#endif
-
-#if defined(MBEDTLS_SSL_ALPN)
-    if( opt.alpn_string != NULL )
-        if( ( ret = mbedtls_ssl_conf_alpn_protocols( &conf, alpn_list ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_alpn_protocols returned %d\n\n",
-                            ret );
-            goto exit;
-        }
-#endif
-
-    mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-    mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
-
-    mbedtls_ssl_conf_read_timeout( &conf, opt.read_timeout );
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    mbedtls_ssl_conf_session_tickets( &conf, opt.tickets );
-#endif
-
-    if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
-        mbedtls_ssl_conf_ciphersuites( &conf, opt.force_ciphersuite );
-
-#if defined(MBEDTLS_ARC4_C)
-    if( opt.arc4 != DFL_ARC4 )
-        mbedtls_ssl_conf_arc4_support( &conf, opt.arc4 );
-#endif
-
-    if( opt.allow_legacy != DFL_ALLOW_LEGACY )
-        mbedtls_ssl_conf_legacy_renegotiation( &conf, opt.allow_legacy );
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    mbedtls_ssl_conf_renegotiation( &conf, opt.renegotiation );
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    if( strcmp( opt.ca_path, "none" ) != 0 &&
-        strcmp( opt.ca_file, "none" ) != 0 )
-    {
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-        if( opt.ca_callback != 0 )
-            mbedtls_ssl_conf_ca_cb( &conf, ca_callback, &cacert );
-        else
-#endif
-            mbedtls_ssl_conf_ca_chain( &conf, &cacert, NULL );
-    }
-    if( strcmp( opt.crt_file, "none" ) != 0 &&
-        strcmp( opt.key_file, "none" ) != 0 )
-    {
-        if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &clicert, &pkey ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_own_cert returned %d\n\n",
-                            ret );
-            goto exit;
-        }
-    }
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-    if( opt.curves != NULL &&
-        strcmp( opt.curves, "default" ) != 0 )
-    {
-        mbedtls_ssl_conf_curves( &conf, curve_list );
-    }
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( opt.psk_opaque != 0 )
-    {
-        /* The algorithm has already been determined earlier. */
-        status = psa_allocate_key( &slot );
-        if( status != PSA_SUCCESS )
-        {
-            ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
-            goto exit;
-        }
-
-        policy = psa_key_policy_init();
-        psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DERIVE, alg );
-
-        status = psa_set_key_policy( slot, &policy );
-        if( status != PSA_SUCCESS )
-        {
-            ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
-            goto exit;
-        }
-
-        status = psa_import_key( slot, PSA_KEY_TYPE_DERIVE, psk, psk_len );
-        if( status != PSA_SUCCESS )
-        {
-            ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
-            goto exit;
-        }
-
-        if( ( ret = mbedtls_ssl_conf_psk_opaque( &conf, slot,
-                                  (const unsigned char *) opt.psk_identity,
-                                  strlen( opt.psk_identity ) ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_psk_opaque returned %d\n\n",
-                            ret );
-            goto exit;
-        }
-    }
-    else
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_ssl_conf_psk( &conf, psk, psk_len,
-                             (const unsigned char *) opt.psk_identity,
-                             strlen( opt.psk_identity ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_psk returned %d\n\n",
-                        ret );
-        goto exit;
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-    if( opt.min_version != DFL_MIN_VERSION )
-        mbedtls_ssl_conf_min_version( &conf, MBEDTLS_SSL_MAJOR_VERSION_3,
-                                      opt.min_version );
-
-    if( opt.max_version != DFL_MAX_VERSION )
-        mbedtls_ssl_conf_max_version( &conf, MBEDTLS_SSL_MAJOR_VERSION_3,
-                                      opt.max_version );
-
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
-    if( opt.fallback != DFL_FALLBACK )
-        mbedtls_ssl_conf_fallback( &conf, opt.fallback );
-#endif
-
-    if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_setup returned -0x%x\n\n",
-                        -ret );
-        goto exit;
-    }
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    if( ( ret = mbedtls_ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n",
-                        ret );
-        goto exit;
-    }
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( opt.ecjpake_pw != DFL_ECJPAKE_PW )
-    {
-        if( ( ret = mbedtls_ssl_set_hs_ecjpake_password( &ssl,
-                        (const unsigned char *) opt.ecjpake_pw,
-                                        strlen( opt.ecjpake_pw ) ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hs_ecjpake_password returned %d\n\n",
-                            ret );
-            goto exit;
-        }
-    }
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    if( opt.context_crt_cb == 1 )
-        mbedtls_ssl_set_verify( &ssl, my_verify, NULL );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    if( opt.nbio == 2 )
-        mbedtls_ssl_set_bio( &ssl, &server_fd, my_send, my_recv, NULL );
-    else
-        mbedtls_ssl_set_bio( &ssl, &server_fd,
-                             mbedtls_net_send, mbedtls_net_recv,
-                             opt.nbio == 0 ? mbedtls_net_recv_timeout : NULL );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( opt.dtls_mtu != DFL_DTLS_MTU )
-        mbedtls_ssl_set_mtu( &ssl, opt.dtls_mtu );
-#endif
-
-#if defined(MBEDTLS_TIMING_C)
-    mbedtls_ssl_set_timer_cb( &ssl, &timer, mbedtls_timing_set_delay,
-                                            mbedtls_timing_get_delay );
-#endif
-
-#if defined(MBEDTLS_ECP_RESTARTABLE)
-    if( opt.ec_max_ops != DFL_EC_MAX_OPS )
-        mbedtls_ecp_set_max_ops( opt.ec_max_ops );
-#endif
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 4. Handshake
-     */
-    mbedtls_printf( "  . Performing the SSL/TLS handshake..." );
-    fflush( stdout );
-
-    while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
-    {
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
-            ret != MBEDTLS_ERR_SSL_WANT_WRITE &&
-            ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_handshake returned -0x%x\n",
-                            -ret );
-            if( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED )
-                mbedtls_printf(
-                    "    Unable to verify the server's certificate. "
-                        "Either it is invalid,\n"
-                    "    or you didn't set ca_file or ca_path "
-                        "to an appropriate value.\n"
-                    "    Alternatively, you may want to use "
-                        "auth_mode=optional for testing purposes.\n" );
-            mbedtls_printf( "\n" );
-            goto exit;
-        }
-
-#if defined(MBEDTLS_ECP_RESTARTABLE)
-        if( ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-            continue;
-#endif
-
-        /* For event-driven IO, wait for socket to become available */
-        if( opt.event == 1 /* level triggered IO */ )
-        {
-#if defined(MBEDTLS_TIMING_C)
-            ret = idle( &server_fd, &timer, ret );
-#else
-            ret = idle( &server_fd, ret );
-#endif
-            if( ret != 0 )
-                goto exit;
-        }
-    }
-
-    mbedtls_printf( " ok\n    [ Protocol is %s ]\n    [ Ciphersuite is %s ]\n",
-                    mbedtls_ssl_get_version( &ssl ),
-                    mbedtls_ssl_get_ciphersuite( &ssl ) );
-
-    if( ( ret = mbedtls_ssl_get_record_expansion( &ssl ) ) >= 0 )
-        mbedtls_printf( "    [ Record expansion is %d ]\n", ret );
-    else
-        mbedtls_printf( "    [ Record expansion is unknown (compression) ]\n" );
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    mbedtls_printf( "    [ Maximum fragment length is %u ]\n",
-                    (unsigned int) mbedtls_ssl_get_max_frag_len( &ssl ) );
-#endif
-
-#if defined(MBEDTLS_SSL_ALPN)
-    if( opt.alpn_string != NULL )
-    {
-        const char *alp = mbedtls_ssl_get_alpn_protocol( &ssl );
-        mbedtls_printf( "    [ Application Layer Protocol is %s ]\n",
-                alp ? alp : "(none)" );
-    }
-#endif
-
-    if( opt.reconnect != 0 )
-    {
-        mbedtls_printf("  . Saving session for reuse..." );
-        fflush( stdout );
-
-        if( ( ret = mbedtls_ssl_get_session( &ssl, &saved_session ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_get_session returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-    }
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    /*
-     * 5. Verify the server certificate
-     */
-    mbedtls_printf( "  . Verifying peer X.509 certificate..." );
-
-    if( ( flags = mbedtls_ssl_get_verify_result( &ssl ) ) != 0 )
-    {
-        char vrfy_buf[512];
-
-        mbedtls_printf( " failed\n" );
-
-        mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ),
-                                      "  ! ", flags );
-
-        mbedtls_printf( "%s\n", vrfy_buf );
-    }
-    else
-        mbedtls_printf( " ok\n" );
-
-    mbedtls_printf( "  . Peer certificate information    ...\n" );
-    mbedtls_printf( "%s\n", peer_crt_info );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( opt.renegotiate )
-    {
-        /*
-         * Perform renegotiation (this must be done when the server is waiting
-         * for input from our side).
-         */
-        mbedtls_printf( "  . Performing renegotiation..." );
-        fflush( stdout );
-        while( ( ret = mbedtls_ssl_renegotiate( &ssl ) ) != 0 )
-        {
-            if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
-                ret != MBEDTLS_ERR_SSL_WANT_WRITE &&
-                ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-            {
-                mbedtls_printf( " failed\n  ! mbedtls_ssl_renegotiate returned %d\n\n",
-                                ret );
-                goto exit;
-            }
-
-#if defined(MBEDTLS_ECP_RESTARTABLE)
-            if( ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-                continue;
-#endif
-
-            /* For event-driven IO, wait for socket to become available */
-            if( opt.event == 1 /* level triggered IO */ )
-            {
-#if defined(MBEDTLS_TIMING_C)
-                idle( &server_fd, &timer, ret );
-#else
-                idle( &server_fd, ret );
-#endif
-            }
-
-        }
-        mbedtls_printf( " ok\n" );
-    }
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-    /*
-     * 6. Write the GET request
-     */
-    retry_left = opt.max_resend;
-send_request:
-    mbedtls_printf( "  > Write to server:" );
-    fflush( stdout );
-
-    len = mbedtls_snprintf( (char *) buf, sizeof( buf ) - 1, GET_REQUEST,
-                            opt.request_page );
-    tail_len = (int) strlen( GET_REQUEST_END );
-
-    /* Add padding to GET request to reach opt.request_size in length */
-    if( opt.request_size != DFL_REQUEST_SIZE &&
-        len + tail_len < opt.request_size )
-    {
-        memset( buf + len, 'A', opt.request_size - len - tail_len );
-        len += opt.request_size - len - tail_len;
-    }
-
-    strncpy( (char *) buf + len, GET_REQUEST_END, sizeof( buf ) - len - 1 );
-    len += tail_len;
-
-    /* Truncate if request size is smaller than the "natural" size */
-    if( opt.request_size != DFL_REQUEST_SIZE &&
-        len > opt.request_size )
-    {
-        len = opt.request_size;
-
-        /* Still end with \r\n unless that's really not possible */
-        if( len >= 2 ) buf[len - 2] = '\r';
-        if( len >= 1 ) buf[len - 1] = '\n';
-    }
-
-    if( opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM )
-    {
-        written = 0;
-        frags = 0;
-
-        do
-        {
-            while( ( ret = mbedtls_ssl_write( &ssl, buf + written,
-                                              len - written ) ) < 0 )
-            {
-                if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
-                    ret != MBEDTLS_ERR_SSL_WANT_WRITE &&
-                    ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-                {
-                    mbedtls_printf( " failed\n  ! mbedtls_ssl_write returned -0x%x\n\n",
-                                    -ret );
-                    goto exit;
-                }
-
-                /* For event-driven IO, wait for socket to become available */
-                if( opt.event == 1 /* level triggered IO */ )
-                {
-#if defined(MBEDTLS_TIMING_C)
-                    idle( &server_fd, &timer, ret );
-#else
-                    idle( &server_fd, ret );
-#endif
-                }
-            }
-
-            frags++;
-            written += ret;
-        }
-        while( written < len );
-    }
-    else /* Not stream, so datagram */
-    {
-        while( 1 )
-        {
-            ret = mbedtls_ssl_write( &ssl, buf, len );
-
-#if defined(MBEDTLS_ECP_RESTARTABLE)
-            if( ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-                continue;
-#endif
-
-            if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
-                ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-                break;
-
-            /* For event-driven IO, wait for socket to become available */
-            if( opt.event == 1 /* level triggered IO */ )
-            {
-#if defined(MBEDTLS_TIMING_C)
-                idle( &server_fd, &timer, ret );
-#else
-                idle( &server_fd, ret );
-#endif
-            }
-        }
-
-        if( ret < 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_write returned %d\n\n",
-                            ret );
-            goto exit;
-        }
-
-        frags = 1;
-        written = ret;
-
-        if( written < len )
-        {
-            mbedtls_printf( " warning\n  ! request didn't fit into single datagram and "
-                            "was truncated to size %u", (unsigned) written );
-        }
-    }
-
-    buf[written] = '\0';
-    mbedtls_printf( " %d bytes written in %d fragments\n\n%s\n",
-                    written, frags, (char *) buf );
-
-    /* Send a non-empty request if request_size == 0 */
-    if ( len == 0 )
-    {
-        opt.request_size = DFL_REQUEST_SIZE;
-        goto send_request;
-    }
-
-    /*
-     * 7. Read the HTTP response
-     */
-    mbedtls_printf( "  < Read from server:" );
-    fflush( stdout );
-
-    /*
-     * TLS and DTLS need different reading styles (stream vs datagram)
-     */
-    if( opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM )
-    {
-        do
-        {
-            len = sizeof( buf ) - 1;
-            memset( buf, 0, sizeof( buf ) );
-            ret = mbedtls_ssl_read( &ssl, buf, len );
-
-#if defined(MBEDTLS_ECP_RESTARTABLE)
-            if( ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-                continue;
-#endif
-
-            if( ret == MBEDTLS_ERR_SSL_WANT_READ ||
-                ret == MBEDTLS_ERR_SSL_WANT_WRITE )
-            {
-                /* For event-driven IO, wait for socket to become available */
-                if( opt.event == 1 /* level triggered IO */ )
-                {
-#if defined(MBEDTLS_TIMING_C)
-                    idle( &server_fd, &timer, ret );
-#else
-                    idle( &server_fd, ret );
-#endif
-                }
-                continue;
-            }
-
-            if( ret <= 0 )
-            {
-                switch( ret )
-                {
-                    case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
-                        mbedtls_printf( " connection was closed gracefully\n" );
-                        ret = 0;
-                        goto close_notify;
-
-                    case 0:
-                    case MBEDTLS_ERR_NET_CONN_RESET:
-                        mbedtls_printf( " connection was reset by peer\n" );
-                        ret = 0;
-                        goto reconnect;
-
-                    default:
-                        mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n",
-                                        -ret );
-                        goto exit;
-                }
-            }
-
-            len = ret;
-            buf[len] = '\0';
-            mbedtls_printf( " %d bytes read\n\n%s", len, (char *) buf );
-
-            /* End of message should be detected according to the syntax of the
-             * application protocol (eg HTTP), just use a dummy test here. */
-            if( ret > 0 && buf[len-1] == '\n' )
-            {
-                ret = 0;
-                break;
-            }
-        }
-        while( 1 );
-    }
-    else /* Not stream, so datagram */
-    {
-        len = sizeof( buf ) - 1;
-        memset( buf, 0, sizeof( buf ) );
-
-        while( 1 )
-        {
-            ret = mbedtls_ssl_read( &ssl, buf, len );
-
-#if defined(MBEDTLS_ECP_RESTARTABLE)
-            if( ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-                continue;
-#endif
-
-            if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
-                ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-                break;
-
-            /* For event-driven IO, wait for socket to become available */
-            if( opt.event == 1 /* level triggered IO */ )
-            {
-#if defined(MBEDTLS_TIMING_C)
-                idle( &server_fd, &timer, ret );
-#else
-                idle( &server_fd, ret );
-#endif
-            }
-        }
-
-        if( ret <= 0 )
-        {
-            switch( ret )
-            {
-                case MBEDTLS_ERR_SSL_TIMEOUT:
-                    mbedtls_printf( " timeout\n" );
-                    if( retry_left-- > 0 )
-                        goto send_request;
-                    goto exit;
-
-                case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
-                    mbedtls_printf( " connection was closed gracefully\n" );
-                    ret = 0;
-                    goto close_notify;
-
-                default:
-                    mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n", -ret );
-                    goto exit;
-            }
-        }
-
-        len = ret;
-        buf[len] = '\0';
-        mbedtls_printf( " %d bytes read\n\n%s", len, (char *) buf );
-        ret = 0;
-    }
-
-    /*
-     * 7b. Simulate hard reset and reconnect from same port?
-     */
-    if( opt.reconnect_hard != 0 )
-    {
-        opt.reconnect_hard = 0;
-
-        mbedtls_printf( "  . Restarting connection from same port..." );
-        fflush( stdout );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-        memset( peer_crt_info, 0, sizeof( peer_crt_info ) );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-        if( ( ret = mbedtls_ssl_session_reset( &ssl ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_session_reset returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-
-        while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
-        {
-            if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
-                ret != MBEDTLS_ERR_SSL_WANT_WRITE &&
-                ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-            {
-                mbedtls_printf( " failed\n  ! mbedtls_ssl_handshake returned -0x%x\n\n",
-                                -ret );
-                goto exit;
-            }
-
-            /* For event-driven IO, wait for socket to become available */
-            if( opt.event == 1 /* level triggered IO */ )
-            {
-#if defined(MBEDTLS_TIMING_C)
-                idle( &server_fd, &timer, ret );
-#else
-                idle( &server_fd, ret );
-#endif
-            }
-        }
-
-        mbedtls_printf( " ok\n" );
-
-        goto send_request;
-    }
-
-    /*
-     * 7c. Continue doing data exchanges?
-     */
-    if( --opt.exchanges > 0 )
-        goto send_request;
-
-    /*
-     * 8. Done, cleanly close the connection
-     */
-close_notify:
-    mbedtls_printf( "  . Closing the connection..." );
-    fflush( stdout );
-
-    /* No error checking, the connection might be closed already */
-    do ret = mbedtls_ssl_close_notify( &ssl );
-    while( ret == MBEDTLS_ERR_SSL_WANT_WRITE );
-    ret = 0;
-
-    mbedtls_printf( " done\n" );
-
-    /*
-     * 9. Reconnect?
-     */
-reconnect:
-    if( opt.reconnect != 0 )
-    {
-        --opt.reconnect;
-
-        mbedtls_net_free( &server_fd );
-
-#if defined(MBEDTLS_TIMING_C)
-        if( opt.reco_delay > 0 )
-            mbedtls_net_usleep( 1000000 * opt.reco_delay );
-#endif
-
-        mbedtls_printf( "  . Reconnecting with saved session..." );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-        memset( peer_crt_info, 0, sizeof( peer_crt_info ) );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-        if( ( ret = mbedtls_ssl_session_reset( &ssl ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_session_reset returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-
-        if( ( ret = mbedtls_ssl_set_session( &ssl, &saved_session ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_session returned %d\n\n",
-                            ret );
-            goto exit;
-        }
-
-        if( ( ret = mbedtls_net_connect( &server_fd,
-                        opt.server_addr, opt.server_port,
-                        opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ?
-                        MBEDTLS_NET_PROTO_TCP : MBEDTLS_NET_PROTO_UDP ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_net_connect returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-
-        if( opt.nbio > 0 )
-            ret = mbedtls_net_set_nonblock( &server_fd );
-        else
-            ret = mbedtls_net_set_block( &server_fd );
-        if( ret != 0 )
-        {
-            mbedtls_printf( " failed\n  ! net_set_(non)block() returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-
-        while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
-        {
-            if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
-                ret != MBEDTLS_ERR_SSL_WANT_WRITE &&
-                ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-            {
-                mbedtls_printf( " failed\n  ! mbedtls_ssl_handshake returned -0x%x\n\n",
-                                -ret );
-                goto exit;
-            }
-        }
-
-        mbedtls_printf( " ok\n" );
-
-        goto send_request;
-    }
-
-    /*
-     * Cleanup and exit
-     */
-exit:
-#ifdef MBEDTLS_ERROR_C
-    if( ret != 0 )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        mbedtls_printf("Last error was: -0x%X - %s\n\n", -ret, error_buf );
-    }
-#endif
-
-    mbedtls_net_free( &server_fd );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_x509_crt_free( &clicert );
-    mbedtls_x509_crt_free( &cacert );
-    mbedtls_pk_free( &pkey );
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_destroy_key( key_slot );
-#endif
-#endif
-    mbedtls_ssl_session_free( &saved_session );
-    mbedtls_ssl_free( &ssl );
-    mbedtls_ssl_config_free( &conf );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) && \
-    defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( opt.psk_opaque != 0 )
-    {
-        /* This is ok even if the slot hasn't been
-         * initialized (we might have jumed here
-         * immediately because of bad cmd line params,
-         * for example). */
-        status = psa_destroy_key( slot );
-        if( status != PSA_SUCCESS )
-        {
-            mbedtls_printf( "Failed to destroy key slot %u - error was %d",
-                            (unsigned) slot, (int) status );
-            if( ret == 0 )
-                ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
-        }
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED &&
-          MBEDTLS_USE_PSA_CRYPTO */
-
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    // Shell can not handle large exit numbers -> 1 for errors
-    if( ret < 0 )
-        ret = 1;
-
-    return( ret );
-}
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_SSL_TLS_C &&
-          MBEDTLS_SSL_CLI_C && MBEDTLS_NET_C && MBEDTLS_RSA_C &&
-          MBEDTLS_CTR_DRBG_C MBEDTLS_TIMING_C */
diff --git a/programs/ssl/ssl_fork_server.c b/programs/ssl/ssl_fork_server.c
deleted file mode 100644
index b6f1cc4..0000000
--- a/programs/ssl/ssl_fork_server.c
+++ /dev/null
@@ -1,435 +0,0 @@
-/*
- *  SSL server demonstration program using fork() for handling multiple clients
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_fprintf         fprintf
-#define mbedtls_printf          printf
-#define mbedtls_time_t          time_t
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif /* MBEDTLS_PLATFORM_C */
-
-#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_CERTS_C) ||    \
-    !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_SSL_TLS_C) || \
-    !defined(MBEDTLS_SSL_SRV_C) || !defined(MBEDTLS_NET_C) ||     \
-    !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_CTR_DRBG_C) ||    \
-    !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_TIMING_C) || \
-    !defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_PEM_PARSE_C)
-int main( int argc, char *argv[] )
-{
-    ((void) argc);
-    ((void) argv);
-
-    mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_CERTS_C and/or MBEDTLS_ENTROPY_C "
-           "and/or MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_SRV_C and/or "
-           "MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
-           "MBEDTLS_CTR_DRBG_C and/or MBEDTLS_X509_CRT_PARSE_C and/or "
-           "MBEDTLS_TIMING_C and/or MBEDTLS_PEM_PARSE_C not defined.\n");
-    return( 0 );
-}
-#elif defined(_WIN32)
-int main( void )
-{
-    mbedtls_printf("_WIN32 defined. This application requires fork() and signals "
-           "to work correctly.\n");
-    return( 0 );
-}
-#else
-
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/certs.h"
-#include "mbedtls/x509.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/timing.h"
-
-#include <string.h>
-#include <signal.h>
-
-#if !defined(_MSC_VER) || defined(EFIX64) || defined(EFI32)
-#include <unistd.h>
-#endif
-
-#define HTTP_RESPONSE \
-    "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n" \
-    "<h2>mbed TLS Test Server</h2>\r\n" \
-    "<p>Successful connection using: %s</p>\r\n"
-
-#define DEBUG_LEVEL 0
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#include "mbedtls/platform_util.h"
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-static void my_debug( void *ctx, int level,
-                      const char *file, int line,
-                      const char *str )
-{
-    ((void) level);
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: %s", file, line, str );
-    fflush(  (FILE *) ctx  );
-}
-
-int main( void )
-{
-    int ret = 1, len, cnt = 0, pid;
-    int exit_code = MBEDTLS_EXIT_FAILURE;
-    mbedtls_net_context listen_fd, client_fd;
-    unsigned char buf[1024];
-    const char *pers = "ssl_fork_server";
-
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_context ssl;
-    mbedtls_ssl_config conf;
-    mbedtls_x509_crt srvcert;
-    mbedtls_pk_context pkey;
-
-    mbedtls_net_init( &listen_fd );
-    mbedtls_net_init( &client_fd );
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-    mbedtls_entropy_init( &entropy );
-    mbedtls_pk_init( &pkey );
-    mbedtls_x509_crt_init( &srvcert );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-
-    signal( SIGCHLD, SIG_IGN );
-
-    /*
-     * 0. Initial seeding of the RNG
-     */
-    mbedtls_printf( "\n  . Initial seeding of the random generator..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed!  mbedtls_ctr_drbg_seed returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1. Load the certificates and private RSA key
-     */
-    mbedtls_printf( "  . Loading the server cert. and key..." );
-    fflush( stdout );
-
-    /*
-     * This demonstration program uses embedded test certificates.
-     * Instead, you may want to use mbedtls_x509_crt_parse_file() to read the
-     * server and CA certificates, as well as mbedtls_pk_parse_keyfile().
-     */
-    ret = mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_srv_crt,
-                          mbedtls_test_srv_crt_len );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed!  mbedtls_x509_crt_parse returned %d\n\n", ret );
-        goto exit;
-    }
-
-    ret = mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_cas_pem,
-                          mbedtls_test_cas_pem_len );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed!  mbedtls_x509_crt_parse returned %d\n\n", ret );
-        goto exit;
-    }
-
-    ret =  mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
-                          mbedtls_test_srv_key_len, NULL, 0 );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed!  mbedtls_pk_parse_key returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1b. Prepare SSL configuration
-     */
-    mbedtls_printf( "  . Configuring SSL..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ssl_config_defaults( &conf,
-                    MBEDTLS_SSL_IS_SERVER,
-                    MBEDTLS_SSL_TRANSPORT_STREAM,
-                    MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
-    {
-        mbedtls_printf( " failed!  mbedtls_ssl_config_defaults returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-    mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
-
-    mbedtls_ssl_conf_ca_chain( &conf, srvcert.next, NULL );
-    if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert, &pkey ) ) != 0 )
-    {
-        mbedtls_printf( " failed!  mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 2. Setup the listening TCP socket
-     */
-    mbedtls_printf( "  . Bind on https://localhost:4433/ ..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_bind( &listen_fd, NULL, "4433", MBEDTLS_NET_PROTO_TCP ) ) != 0 )
-    {
-        mbedtls_printf( " failed!  mbedtls_net_bind returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    while( 1 )
-    {
-        /*
-         * 3. Wait until a client connects
-         */
-        mbedtls_net_init( &client_fd );
-        mbedtls_ssl_init( &ssl );
-
-        mbedtls_printf( "  . Waiting for a remote connection ...\n" );
-        fflush( stdout );
-
-        if( ( ret = mbedtls_net_accept( &listen_fd, &client_fd,
-                                        NULL, 0, NULL ) ) != 0 )
-        {
-            mbedtls_printf( " failed!  mbedtls_net_accept returned %d\n\n", ret );
-            goto exit;
-        }
-
-        /*
-         * 3.5. Forking server thread
-         */
-
-        mbedtls_printf( "  . Forking to handle connection ..." );
-        fflush( stdout );
-
-        pid = fork();
-
-        if( pid < 0 )
-        {
-            mbedtls_printf(" failed!  fork returned %d\n\n", pid );
-            goto exit;
-        }
-
-        if( pid != 0 )
-        {
-            mbedtls_printf( " ok\n" );
-
-            if( ( ret = mbedtls_ctr_drbg_reseed( &ctr_drbg,
-                                         (const unsigned char *) "parent",
-                                         6 ) ) != 0 )
-            {
-                mbedtls_printf( " failed!  mbedtls_ctr_drbg_reseed returned %d\n\n", ret );
-                goto exit;
-            }
-
-            continue;
-        }
-
-        mbedtls_net_init( &listen_fd );
-
-        pid = getpid();
-
-        /*
-         * 4. Setup stuff
-         */
-        mbedtls_printf( "pid %d: Setting up the SSL data.\n", pid );
-        fflush( stdout );
-
-        if( ( ret = mbedtls_ctr_drbg_reseed( &ctr_drbg,
-                                     (const unsigned char *) "child",
-                                     5 ) ) != 0 )
-        {
-            mbedtls_printf(
-                    "pid %d: SSL setup failed!  mbedtls_ctr_drbg_reseed returned %d\n\n",
-                    pid, ret );
-            goto exit;
-        }
-
-        if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
-        {
-            mbedtls_printf(
-                    "pid %d: SSL setup failed!  mbedtls_ssl_setup returned %d\n\n",
-                    pid, ret );
-            goto exit;
-        }
-
-        mbedtls_ssl_set_bio( &ssl, &client_fd, mbedtls_net_send, mbedtls_net_recv, NULL );
-
-        mbedtls_printf( "pid %d: SSL setup ok\n", pid );
-
-        /*
-         * 5. Handshake
-         */
-        mbedtls_printf( "pid %d: Performing the SSL/TLS handshake.\n", pid );
-        fflush( stdout );
-
-        while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
-        {
-            if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-            {
-                mbedtls_printf(
-                        "pid %d: SSL handshake failed!  mbedtls_ssl_handshake returned %d\n\n",
-                        pid, ret );
-                goto exit;
-            }
-        }
-
-        mbedtls_printf( "pid %d: SSL handshake ok\n", pid );
-
-        /*
-         * 6. Read the HTTP Request
-         */
-        mbedtls_printf( "pid %d: Start reading from client.\n", pid );
-        fflush( stdout );
-
-        do
-        {
-            len = sizeof( buf ) - 1;
-            memset( buf, 0, sizeof( buf ) );
-            ret = mbedtls_ssl_read( &ssl, buf, len );
-
-            if( ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE )
-                continue;
-
-            if( ret <= 0 )
-            {
-                switch( ret )
-                {
-                    case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
-                        mbedtls_printf( "pid %d: connection was closed gracefully\n", pid );
-                        break;
-
-                    case MBEDTLS_ERR_NET_CONN_RESET:
-                        mbedtls_printf( "pid %d: connection was reset by peer\n", pid );
-                        break;
-
-                    default:
-                        mbedtls_printf( "pid %d: mbedtls_ssl_read returned %d\n", pid, ret );
-                        break;
-                }
-
-                break;
-            }
-
-            len = ret;
-            mbedtls_printf( "pid %d: %d bytes read\n\n%s", pid, len, (char *) buf );
-
-            if( ret > 0 )
-                break;
-        }
-        while( 1 );
-
-        /*
-         * 7. Write the 200 Response
-         */
-        mbedtls_printf( "pid %d: Start writing to client.\n", pid );
-        fflush( stdout );
-
-        len = sprintf( (char *) buf, HTTP_RESPONSE,
-                mbedtls_ssl_get_ciphersuite( &ssl ) );
-
-        while( cnt++ < 100 )
-        {
-            while( ( ret = mbedtls_ssl_write( &ssl, buf, len ) ) <= 0 )
-            {
-                if( ret == MBEDTLS_ERR_NET_CONN_RESET )
-                {
-                    mbedtls_printf(
-                            "pid %d: Write failed!  peer closed the connection\n\n", pid );
-                    goto exit;
-                }
-
-                if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-                {
-                    mbedtls_printf(
-                            "pid %d: Write failed!  mbedtls_ssl_write returned %d\n\n",
-                            pid, ret );
-                    goto exit;
-                }
-            }
-            len = ret;
-            mbedtls_printf( "pid %d: %d bytes written\n\n%s\n", pid, len, (char *) buf );
-
-            mbedtls_net_usleep( 1000000 );
-        }
-
-        mbedtls_ssl_close_notify( &ssl );
-        goto exit;
-    }
-
-    exit_code = MBEDTLS_EXIT_SUCCESS;
-
-exit:
-    mbedtls_net_free( &client_fd );
-    mbedtls_net_free( &listen_fd );
-
-    mbedtls_x509_crt_free( &srvcert );
-    mbedtls_pk_free( &pkey );
-    mbedtls_ssl_free( &ssl );
-    mbedtls_ssl_config_free( &conf );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( exit_code );
-}
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_CERTS_C && MBEDTLS_ENTROPY_C &&
-          MBEDTLS_SSL_TLS_C && MBEDTLS_SSL_SRV_C && MBEDTLS_NET_C &&
-          MBEDTLS_RSA_C && MBEDTLS_CTR_DRBG_C && MBEDTLS_PEM_PARSE_C &&
-          ! _WIN32 */
diff --git a/programs/ssl/ssl_mail_client.c b/programs/ssl/ssl_mail_client.c
deleted file mode 100644
index c73297c..0000000
--- a/programs/ssl/ssl_mail_client.c
+++ /dev/null
@@ -1,871 +0,0 @@
-/*
- *  SSL client for SMTP servers
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-/* Enable definition of gethostname() even when compiling with -std=c99. Must
- * be set before config.h, which pulls in glibc's features.h indirectly.
- * Harmless on other platforms. */
-#define _POSIX_C_SOURCE 200112L
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_time            time
-#define mbedtls_time_t          time_t
-#define mbedtls_fprintf         fprintf
-#define mbedtls_printf          printf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif /* MBEDTLS_PLATFORM_C */
-
-#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_ENTROPY_C) ||  \
-    !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_CLI_C) || \
-    !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_RSA_C) ||         \
-    !defined(MBEDTLS_CTR_DRBG_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \
-    !defined(MBEDTLS_FS_IO)
-int main( void )
-{
-    mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_ENTROPY_C and/or "
-           "MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_CLI_C and/or "
-           "MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
-           "MBEDTLS_CTR_DRBG_C and/or MBEDTLS_X509_CRT_PARSE_C "
-           "not defined.\n");
-    return( 0 );
-}
-#else
-
-#include "mbedtls/base64.h"
-#include "mbedtls/error.h"
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/certs.h"
-#include "mbedtls/x509.h"
-
-#include <stdlib.h>
-#include <string.h>
-
-#if !defined(_MSC_VER) || defined(EFIX64) || defined(EFI32)
-#include <unistd.h>
-#else
-#include <io.h>
-#endif
-
-#if defined(_WIN32) || defined(_WIN32_WCE)
-#include <winsock2.h>
-#include <windows.h>
-
-#if defined(_MSC_VER)
-#if defined(_WIN32_WCE)
-#pragma comment( lib, "ws2.lib" )
-#else
-#pragma comment( lib, "ws2_32.lib" )
-#endif
-#endif /* _MSC_VER */
-#endif
-
-#define DFL_SERVER_NAME         "localhost"
-#define DFL_SERVER_PORT         "465"
-#define DFL_USER_NAME           "user"
-#define DFL_USER_PWD            "password"
-#define DFL_MAIL_FROM           ""
-#define DFL_MAIL_TO             ""
-#define DFL_DEBUG_LEVEL         0
-#define DFL_CA_FILE             ""
-#define DFL_CRT_FILE            ""
-#define DFL_KEY_FILE            ""
-#define DFL_FORCE_CIPHER        0
-#define DFL_MODE                0
-#define DFL_AUTHENTICATION      0
-
-#define MODE_SSL_TLS            0
-#define MODE_STARTTLS           0
-
-#if defined(MBEDTLS_BASE64_C)
-#define USAGE_AUTH \
-    "    authentication=%%d   default: 0 (disabled)\n"          \
-    "    user_name=%%s        default: \"" DFL_USER_NAME "\"\n" \
-    "    user_pwd=%%s         default: \"" DFL_USER_PWD "\"\n"
-#else
-#define USAGE_AUTH \
-    "    authentication options disabled. (Require MBEDTLS_BASE64_C)\n"
-#endif /* MBEDTLS_BASE64_C */
-
-#if defined(MBEDTLS_FS_IO)
-#define USAGE_IO \
-    "    ca_file=%%s          default: \"\" (pre-loaded)\n" \
-    "    crt_file=%%s         default: \"\" (pre-loaded)\n" \
-    "    key_file=%%s         default: \"\" (pre-loaded)\n"
-#else
-#define USAGE_IO \
-    "    No file operations available (MBEDTLS_FS_IO not defined)\n"
-#endif /* MBEDTLS_FS_IO */
-
-#define USAGE \
-    "\n usage: ssl_mail_client param=<>...\n"                 \
-    "\n acceptable parameters:\n"                             \
-    "    server_name=%%s      default: " DFL_SERVER_NAME "\n" \
-    "    server_port=%%d      default: " DFL_SERVER_PORT "\n" \
-    "    debug_level=%%d      default: 0 (disabled)\n"        \
-    "    mode=%%d             default: 0 (SSL/TLS) (1 for STARTTLS)\n"  \
-    USAGE_AUTH                                                \
-    "    mail_from=%%s        default: \"\"\n"                \
-    "    mail_to=%%s          default: \"\"\n"                \
-    USAGE_IO                                                  \
-    "    force_ciphersuite=<name>    default: all enabled\n"  \
-    " acceptable ciphersuite names:\n"
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#include "mbedtls/platform_util.h"
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-/*
- * global options
- */
-struct options
-{
-    const char *server_name;    /* hostname of the server (client only)     */
-    const char *server_port;    /* port on which the ssl service runs       */
-    int debug_level;            /* level of debugging                       */
-    int authentication;         /* if authentication is required            */
-    int mode;                   /* SSL/TLS (0) or STARTTLS (1)              */
-    const char *user_name;      /* username to use for authentication       */
-    const char *user_pwd;       /* password to use for authentication       */
-    const char *mail_from;      /* E-Mail address to use as sender          */
-    const char *mail_to;        /* E-Mail address to use as recipient       */
-    const char *ca_file;        /* the file with the CA certificate(s)      */
-    const char *crt_file;       /* the file with the client certificate     */
-    const char *key_file;       /* the file with the client key             */
-    int force_ciphersuite[2];   /* protocol/ciphersuite to use, or all      */
-} opt;
-
-static void my_debug( void *ctx, int level,
-                      const char *file, int line,
-                      const char *str )
-{
-    ((void) level);
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: %s", file, line, str );
-    fflush(  (FILE *) ctx  );
-}
-
-static int do_handshake( mbedtls_ssl_context *ssl )
-{
-    int ret;
-    uint32_t flags;
-    unsigned char buf[1024];
-    memset(buf, 0, 1024);
-
-    /*
-     * 4. Handshake
-     */
-    mbedtls_printf( "  . Performing the SSL/TLS handshake..." );
-    fflush( stdout );
-
-    while( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 )
-    {
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-#if defined(MBEDTLS_ERROR_C)
-            mbedtls_strerror( ret, (char *) buf, 1024 );
-#endif
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_handshake returned %d: %s\n\n", ret, buf );
-            return( -1 );
-        }
-    }
-
-    mbedtls_printf( " ok\n    [ Ciphersuite is %s ]\n",
-            mbedtls_ssl_get_ciphersuite( ssl ) );
-
-    /*
-     * 5. Verify the server certificate
-     */
-    mbedtls_printf( "  . Verifying peer X.509 certificate..." );
-
-    /* In real life, we probably want to bail out when ret != 0 */
-    if( ( flags = mbedtls_ssl_get_verify_result( ssl ) ) != 0 )
-    {
-        char vrfy_buf[512];
-
-        mbedtls_printf( " failed\n" );
-
-        mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ), "  ! ", flags );
-
-        mbedtls_printf( "%s\n", vrfy_buf );
-    }
-    else
-        mbedtls_printf( " ok\n" );
-
-    mbedtls_printf( "  . Peer certificate information    ...\n" );
-    mbedtls_x509_crt_info( (char *) buf, sizeof( buf ) - 1, "      ",
-                   mbedtls_ssl_get_peer_cert( ssl ) );
-    mbedtls_printf( "%s\n", buf );
-
-    return( 0 );
-}
-
-static int write_ssl_data( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len )
-{
-    int ret;
-
-    mbedtls_printf("\n%s", buf);
-    while( len && ( ret = mbedtls_ssl_write( ssl, buf, len ) ) <= 0 )
-    {
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_write returned %d\n\n", ret );
-            return -1;
-        }
-    }
-
-    return( 0 );
-}
-
-static int write_ssl_and_get_response( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len )
-{
-    int ret;
-    unsigned char data[128];
-    char code[4];
-    size_t i, idx = 0;
-
-    mbedtls_printf("\n%s", buf);
-    while( len && ( ret = mbedtls_ssl_write( ssl, buf, len ) ) <= 0 )
-    {
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_write returned %d\n\n", ret );
-            return -1;
-        }
-    }
-
-    do
-    {
-        len = sizeof( data ) - 1;
-        memset( data, 0, sizeof( data ) );
-        ret = mbedtls_ssl_read( ssl, data, len );
-
-        if( ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE )
-            continue;
-
-        if( ret == MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY )
-            return -1;
-
-        if( ret <= 0 )
-        {
-            mbedtls_printf( "failed\n  ! mbedtls_ssl_read returned %d\n\n", ret );
-            return -1;
-        }
-
-        mbedtls_printf("\n%s", data);
-        len = ret;
-        for( i = 0; i < len; i++ )
-        {
-            if( data[i] != '\n' )
-            {
-                if( idx < 4 )
-                    code[ idx++ ] = data[i];
-                continue;
-            }
-
-            if( idx == 4 && code[0] >= '0' && code[0] <= '9' && code[3] == ' ' )
-            {
-                code[3] = '\0';
-                return atoi( code );
-            }
-
-            idx = 0;
-        }
-    }
-    while( 1 );
-}
-
-static int write_and_get_response( mbedtls_net_context *sock_fd, unsigned char *buf, size_t len )
-{
-    int ret;
-    unsigned char data[128];
-    char code[4];
-    size_t i, idx = 0;
-
-    mbedtls_printf("\n%s", buf);
-    if( len && ( ret = mbedtls_net_send( sock_fd, buf, len ) ) <= 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_send returned %d\n\n", ret );
-            return -1;
-    }
-
-    do
-    {
-        len = sizeof( data ) - 1;
-        memset( data, 0, sizeof( data ) );
-        ret = mbedtls_net_recv( sock_fd, data, len );
-
-        if( ret <= 0 )
-        {
-            mbedtls_printf( "failed\n  ! mbedtls_net_recv returned %d\n\n", ret );
-            return -1;
-        }
-
-        data[len] = '\0';
-        mbedtls_printf("\n%s", data);
-        len = ret;
-        for( i = 0; i < len; i++ )
-        {
-            if( data[i] != '\n' )
-            {
-                if( idx < 4 )
-                    code[ idx++ ] = data[i];
-                continue;
-            }
-
-            if( idx == 4 && code[0] >= '0' && code[0] <= '9' && code[3] == ' ' )
-            {
-                code[3] = '\0';
-                return atoi( code );
-            }
-
-            idx = 0;
-        }
-    }
-    while( 1 );
-}
-
-int main( int argc, char *argv[] )
-{
-    int ret = 1, len;
-    int exit_code = MBEDTLS_EXIT_FAILURE;
-    mbedtls_net_context server_fd;
-#if defined(MBEDTLS_BASE64_C)
-    unsigned char base[1024];
-    /* buf is used as the destination buffer for printing base with the format:
-     * "%s\r\n". Hence, the size of buf should be at least the size of base
-     * plus 2 bytes for the \r and \n characters.
-     */
-    unsigned char buf[sizeof( base ) + 2];
-#else
-    unsigned char buf[1024];
-#endif
-    char hostname[32];
-    const char *pers = "ssl_mail_client";
-
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_context ssl;
-    mbedtls_ssl_config conf;
-    mbedtls_x509_crt cacert;
-    mbedtls_x509_crt clicert;
-    mbedtls_pk_context pkey;
-    int i;
-    size_t n;
-    char *p, *q;
-    const int *list;
-
-    /*
-     * Make sure memory references are valid in case we exit early.
-     */
-    mbedtls_net_init( &server_fd );
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-    memset( &buf, 0, sizeof( buf ) );
-    mbedtls_x509_crt_init( &cacert );
-    mbedtls_x509_crt_init( &clicert );
-    mbedtls_pk_init( &pkey );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-
-    if( argc == 0 )
-    {
-    usage:
-        mbedtls_printf( USAGE );
-
-        list = mbedtls_ssl_list_ciphersuites();
-        while( *list )
-        {
-            mbedtls_printf("    %s\n", mbedtls_ssl_get_ciphersuite_name( *list ) );
-            list++;
-        }
-        mbedtls_printf("\n");
-        goto exit;
-    }
-
-    opt.server_name         = DFL_SERVER_NAME;
-    opt.server_port         = DFL_SERVER_PORT;
-    opt.debug_level         = DFL_DEBUG_LEVEL;
-    opt.authentication      = DFL_AUTHENTICATION;
-    opt.mode                = DFL_MODE;
-    opt.user_name           = DFL_USER_NAME;
-    opt.user_pwd            = DFL_USER_PWD;
-    opt.mail_from           = DFL_MAIL_FROM;
-    opt.mail_to             = DFL_MAIL_TO;
-    opt.ca_file             = DFL_CA_FILE;
-    opt.crt_file            = DFL_CRT_FILE;
-    opt.key_file            = DFL_KEY_FILE;
-    opt.force_ciphersuite[0]= DFL_FORCE_CIPHER;
-
-    for( i = 1; i < argc; i++ )
-    {
-        p = argv[i];
-        if( ( q = strchr( p, '=' ) ) == NULL )
-            goto usage;
-        *q++ = '\0';
-
-        if( strcmp( p, "server_name" ) == 0 )
-            opt.server_name = q;
-        else if( strcmp( p, "server_port" ) == 0 )
-            opt.server_port = q;
-        else if( strcmp( p, "debug_level" ) == 0 )
-        {
-            opt.debug_level = atoi( q );
-            if( opt.debug_level < 0 || opt.debug_level > 65535 )
-                goto usage;
-        }
-        else if( strcmp( p, "authentication" ) == 0 )
-        {
-            opt.authentication = atoi( q );
-            if( opt.authentication < 0 || opt.authentication > 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "mode" ) == 0 )
-        {
-            opt.mode = atoi( q );
-            if( opt.mode < 0 || opt.mode > 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "user_name" ) == 0 )
-            opt.user_name = q;
-        else if( strcmp( p, "user_pwd" ) == 0 )
-            opt.user_pwd = q;
-        else if( strcmp( p, "mail_from" ) == 0 )
-            opt.mail_from = q;
-        else if( strcmp( p, "mail_to" ) == 0 )
-            opt.mail_to = q;
-        else if( strcmp( p, "ca_file" ) == 0 )
-            opt.ca_file = q;
-        else if( strcmp( p, "crt_file" ) == 0 )
-            opt.crt_file = q;
-        else if( strcmp( p, "key_file" ) == 0 )
-            opt.key_file = q;
-        else if( strcmp( p, "force_ciphersuite" ) == 0 )
-        {
-            opt.force_ciphersuite[0] = -1;
-
-            opt.force_ciphersuite[0] = mbedtls_ssl_get_ciphersuite_id( q );
-
-            if( opt.force_ciphersuite[0] <= 0 )
-                goto usage;
-
-            opt.force_ciphersuite[1] = 0;
-        }
-        else
-            goto usage;
-    }
-
-    /*
-     * 0. Initialize the RNG and the session data
-     */
-    mbedtls_printf( "\n  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    mbedtls_entropy_init( &entropy );
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1.1. Load the trusted CA
-     */
-    mbedtls_printf( "  . Loading the CA root certificate ..." );
-    fflush( stdout );
-
-#if defined(MBEDTLS_FS_IO)
-    if( strlen( opt.ca_file ) )
-        ret = mbedtls_x509_crt_parse_file( &cacert, opt.ca_file );
-    else
-#endif
-#if defined(MBEDTLS_CERTS_C) && defined(MBEDTLS_PEM_PARSE_C)
-        ret = mbedtls_x509_crt_parse( &cacert, (const unsigned char *) mbedtls_test_cas_pem,
-                              mbedtls_test_cas_pem_len );
-#else
-    {
-        mbedtls_printf("MBEDTLS_CERTS_C and/or MBEDTLS_PEM_PARSE_C not defined.");
-        goto exit;
-    }
-#endif
-    if( ret < 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok (%d skipped)\n", ret );
-
-    /*
-     * 1.2. Load own certificate and private key
-     *
-     * (can be skipped if client authentication is not required)
-     */
-    mbedtls_printf( "  . Loading the client cert. and key..." );
-    fflush( stdout );
-
-#if defined(MBEDTLS_FS_IO)
-    if( strlen( opt.crt_file ) )
-        ret = mbedtls_x509_crt_parse_file( &clicert, opt.crt_file );
-    else
-#endif
-#if defined(MBEDTLS_CERTS_C)
-        ret = mbedtls_x509_crt_parse( &clicert, (const unsigned char *) mbedtls_test_cli_crt,
-                              mbedtls_test_cli_crt_len );
-#else
-    {
-        mbedtls_printf("MBEDTLS_CERTS_C not defined.");
-        goto exit;
-    }
-#endif
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned %d\n\n", ret );
-        goto exit;
-    }
-
-#if defined(MBEDTLS_FS_IO)
-    if( strlen( opt.key_file ) )
-        ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file, "" );
-    else
-#endif
-#if defined(MBEDTLS_CERTS_C) && defined(MBEDTLS_PEM_PARSE_C)
-        ret = mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_cli_key,
-                mbedtls_test_cli_key_len, NULL, 0 );
-#else
-    {
-        mbedtls_printf("MBEDTLS_CERTS_C or MBEDTLS_PEM_PARSE_C not defined.");
-        goto exit;
-    }
-#endif
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_pk_parse_key returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 2. Start the connection
-     */
-    mbedtls_printf( "  . Connecting to tcp/%s/%s...", opt.server_name,
-                                                opt.server_port );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_connect( &server_fd, opt.server_name,
-                             opt.server_port, MBEDTLS_NET_PROTO_TCP ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_connect returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 3. Setup stuff
-     */
-    mbedtls_printf( "  . Setting up the SSL/TLS structure..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ssl_config_defaults( &conf,
-                    MBEDTLS_SSL_IS_CLIENT,
-                    MBEDTLS_SSL_TRANSPORT_STREAM,
-                    MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_config_defaults returned %d\n\n", ret );
-        goto exit;
-    }
-
-    /* OPTIONAL is not optimal for security,
-     * but makes interop easier in this simplified example */
-    mbedtls_ssl_conf_authmode( &conf, MBEDTLS_SSL_VERIFY_OPTIONAL );
-
-    mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-    mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
-
-    if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
-        mbedtls_ssl_conf_ciphersuites( &conf, opt.force_ciphersuite );
-
-    mbedtls_ssl_conf_ca_chain( &conf, &cacert, NULL );
-    if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &clicert, &pkey ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
-        goto exit;
-    }
-
-    if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret );
-        goto exit;
-    }
-
-    if( ( ret = mbedtls_ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_set_bio( &ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, NULL );
-
-    mbedtls_printf( " ok\n" );
-
-    if( opt.mode == MODE_SSL_TLS )
-    {
-        if( do_handshake( &ssl ) != 0 )
-            goto exit;
-
-        mbedtls_printf( "  > Get header from server:" );
-        fflush( stdout );
-
-        ret = write_ssl_and_get_response( &ssl, buf, 0 );
-        if( ret < 200 || ret > 299 )
-        {
-            mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-            goto exit;
-        }
-
-        mbedtls_printf(" ok\n" );
-
-        mbedtls_printf( "  > Write EHLO to server:" );
-        fflush( stdout );
-
-        gethostname( hostname, 32 );
-        len = sprintf( (char *) buf, "EHLO %s\r\n", hostname );
-        ret = write_ssl_and_get_response( &ssl, buf, len );
-        if( ret < 200 || ret > 299 )
-        {
-            mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-            goto exit;
-        }
-    }
-    else
-    {
-        mbedtls_printf( "  > Get header from server:" );
-        fflush( stdout );
-
-        ret = write_and_get_response( &server_fd, buf, 0 );
-        if( ret < 200 || ret > 299 )
-        {
-            mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-            goto exit;
-        }
-
-        mbedtls_printf(" ok\n" );
-
-        mbedtls_printf( "  > Write EHLO to server:" );
-        fflush( stdout );
-
-        gethostname( hostname, 32 );
-        len = sprintf( (char *) buf, "EHLO %s\r\n", hostname );
-        ret = write_and_get_response( &server_fd, buf, len );
-        if( ret < 200 || ret > 299 )
-        {
-            mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-            goto exit;
-        }
-
-        mbedtls_printf(" ok\n" );
-
-        mbedtls_printf( "  > Write STARTTLS to server:" );
-        fflush( stdout );
-
-        gethostname( hostname, 32 );
-        len = sprintf( (char *) buf, "STARTTLS\r\n" );
-        ret = write_and_get_response( &server_fd, buf, len );
-        if( ret < 200 || ret > 299 )
-        {
-            mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-            goto exit;
-        }
-
-        mbedtls_printf(" ok\n" );
-
-        if( do_handshake( &ssl ) != 0 )
-            goto exit;
-    }
-
-#if defined(MBEDTLS_BASE64_C)
-    if( opt.authentication )
-    {
-        mbedtls_printf( "  > Write AUTH LOGIN to server:" );
-        fflush( stdout );
-
-        len = sprintf( (char *) buf, "AUTH LOGIN\r\n" );
-        ret = write_ssl_and_get_response( &ssl, buf, len );
-        if( ret < 200 || ret > 399 )
-        {
-            mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-            goto exit;
-        }
-
-        mbedtls_printf(" ok\n" );
-
-        mbedtls_printf( "  > Write username to server: %s", opt.user_name );
-        fflush( stdout );
-
-        ret = mbedtls_base64_encode( base, sizeof( base ), &n, (const unsigned char *) opt.user_name,
-                             strlen( opt.user_name ) );
-
-        if( ret != 0 ) {
-            mbedtls_printf( " failed\n  ! mbedtls_base64_encode returned %d\n\n", ret );
-            goto exit;
-        }
-        len = sprintf( (char *) buf, "%s\r\n", base );
-        ret = write_ssl_and_get_response( &ssl, buf, len );
-        if( ret < 300 || ret > 399 )
-        {
-            mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-            goto exit;
-        }
-
-        mbedtls_printf(" ok\n" );
-
-        mbedtls_printf( "  > Write password to server: %s", opt.user_pwd );
-        fflush( stdout );
-
-        ret = mbedtls_base64_encode( base, sizeof( base ), &n, (const unsigned char *) opt.user_pwd,
-                             strlen( opt.user_pwd ) );
-
-        if( ret != 0 ) {
-            mbedtls_printf( " failed\n  ! mbedtls_base64_encode returned %d\n\n", ret );
-            goto exit;
-        }
-        len = sprintf( (char *) buf, "%s\r\n", base );
-        ret = write_ssl_and_get_response( &ssl, buf, len );
-        if( ret < 200 || ret > 399 )
-        {
-            mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-            goto exit;
-        }
-
-        mbedtls_printf(" ok\n" );
-    }
-#endif
-
-    mbedtls_printf( "  > Write MAIL FROM to server:" );
-    fflush( stdout );
-
-    len = sprintf( (char *) buf, "MAIL FROM:<%s>\r\n", opt.mail_from );
-    ret = write_ssl_and_get_response( &ssl, buf, len );
-    if( ret < 200 || ret > 299 )
-    {
-        mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf(" ok\n" );
-
-    mbedtls_printf( "  > Write RCPT TO to server:" );
-    fflush( stdout );
-
-    len = sprintf( (char *) buf, "RCPT TO:<%s>\r\n", opt.mail_to );
-    ret = write_ssl_and_get_response( &ssl, buf, len );
-    if( ret < 200 || ret > 299 )
-    {
-        mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf(" ok\n" );
-
-    mbedtls_printf( "  > Write DATA to server:" );
-    fflush( stdout );
-
-    len = sprintf( (char *) buf, "DATA\r\n" );
-    ret = write_ssl_and_get_response( &ssl, buf, len );
-    if( ret < 300 || ret > 399 )
-    {
-        mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf(" ok\n" );
-
-    mbedtls_printf( "  > Write content to server:" );
-    fflush( stdout );
-
-    len = sprintf( (char *) buf, "From: %s\r\nSubject: mbed TLS Test mail\r\n\r\n"
-            "This is a simple test mail from the "
-            "mbed TLS mail client example.\r\n"
-            "\r\n"
-            "Enjoy!", opt.mail_from );
-    ret = write_ssl_data( &ssl, buf, len );
-
-    len = sprintf( (char *) buf, "\r\n.\r\n");
-    ret = write_ssl_and_get_response( &ssl, buf, len );
-    if( ret < 200 || ret > 299 )
-    {
-        mbedtls_printf( " failed\n  ! server responded with %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf(" ok\n" );
-
-    mbedtls_ssl_close_notify( &ssl );
-
-    exit_code = MBEDTLS_EXIT_SUCCESS;
-
-exit:
-
-    mbedtls_net_free( &server_fd );
-    mbedtls_x509_crt_free( &clicert );
-    mbedtls_x509_crt_free( &cacert );
-    mbedtls_pk_free( &pkey );
-    mbedtls_ssl_free( &ssl );
-    mbedtls_ssl_config_free( &conf );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( exit_code );
-}
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_SSL_TLS_C &&
-          MBEDTLS_SSL_CLI_C && MBEDTLS_NET_C && MBEDTLS_RSA_C **
-          MBEDTLS_CTR_DRBG_C */
diff --git a/programs/ssl/ssl_pthread_server.c b/programs/ssl/ssl_pthread_server.c
deleted file mode 100644
index b502695..0000000
--- a/programs/ssl/ssl_pthread_server.c
+++ /dev/null
@@ -1,545 +0,0 @@
-/*
- *  SSL server demonstration program using pthread for handling multiple
- *  clients.
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_fprintf    fprintf
-#define mbedtls_printf     printf
-#define mbedtls_snprintf   snprintf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif
-
-#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_CERTS_C) ||            \
-    !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_SSL_TLS_C) ||         \
-    !defined(MBEDTLS_SSL_SRV_C) || !defined(MBEDTLS_NET_C) ||             \
-    !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_CTR_DRBG_C) ||            \
-    !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_FS_IO) ||      \
-    !defined(MBEDTLS_THREADING_C) || !defined(MBEDTLS_THREADING_PTHREAD) || \
-    !defined(MBEDTLS_PEM_PARSE_C)
-int main( void )
-{
-    mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_CERTS_C and/or MBEDTLS_ENTROPY_C "
-           "and/or MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_SRV_C and/or "
-           "MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
-           "MBEDTLS_CTR_DRBG_C and/or MBEDTLS_X509_CRT_PARSE_C and/or "
-           "MBEDTLS_THREADING_C and/or MBEDTLS_THREADING_PTHREAD "
-           "and/or MBEDTLS_PEM_PARSE_C not defined.\n");
-    return( 0 );
-}
-#else
-
-#include <stdlib.h>
-#include <string.h>
-
-#if defined(_WIN32)
-#include <windows.h>
-#endif
-
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/certs.h"
-#include "mbedtls/x509.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/error.h"
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-#include "mbedtls/ssl_cache.h"
-#endif
-
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
-#include "mbedtls/memory_buffer_alloc.h"
-#endif
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#include "mbedtls/platform_util.h"
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-#define HTTP_RESPONSE \
-    "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n" \
-    "<h2>mbed TLS Test Server</h2>\r\n" \
-    "<p>Successful connection using: %s</p>\r\n"
-
-#define DEBUG_LEVEL 0
-
-#define MAX_NUM_THREADS 5
-
-mbedtls_threading_mutex_t debug_mutex;
-
-static void my_mutexed_debug( void *ctx, int level,
-                      const char *file, int line,
-                      const char *str )
-{
-    long int thread_id = (long int) pthread_self();
-
-    mbedtls_mutex_lock( &debug_mutex );
-
-    ((void) level);
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: [ #%ld ] %s",
-                                    file, line, thread_id, str );
-    fflush(  (FILE *) ctx  );
-
-    mbedtls_mutex_unlock( &debug_mutex );
-}
-
-typedef struct {
-    mbedtls_net_context client_fd;
-    int thread_complete;
-    const mbedtls_ssl_config *config;
-} thread_info_t;
-
-typedef struct {
-    int active;
-    thread_info_t   data;
-    pthread_t       thread;
-} pthread_info_t;
-
-static thread_info_t    base_info;
-static pthread_info_t   threads[MAX_NUM_THREADS];
-
-static void *handle_ssl_connection( void *data )
-{
-    int ret, len;
-    thread_info_t *thread_info = (thread_info_t *) data;
-    mbedtls_net_context *client_fd = &thread_info->client_fd;
-    long int thread_id = (long int) pthread_self();
-    unsigned char buf[1024];
-    mbedtls_ssl_context ssl;
-
-    /* Make sure memory references are valid */
-    mbedtls_ssl_init( &ssl );
-
-    mbedtls_printf( "  [ #%ld ]  Setting up SSL/TLS data\n", thread_id );
-
-    /*
-     * 4. Get the SSL context ready
-     */
-    if( ( ret = mbedtls_ssl_setup( &ssl, thread_info->config ) ) != 0 )
-    {
-        mbedtls_printf( "  [ #%ld ]  failed: mbedtls_ssl_setup returned -0x%04x\n",
-                thread_id, -ret );
-        goto thread_exit;
-    }
-
-    mbedtls_ssl_set_bio( &ssl, client_fd, mbedtls_net_send, mbedtls_net_recv, NULL );
-
-    /*
-     * 5. Handshake
-     */
-    mbedtls_printf( "  [ #%ld ]  Performing the SSL/TLS handshake\n", thread_id );
-
-    while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
-    {
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-            mbedtls_printf( "  [ #%ld ]  failed: mbedtls_ssl_handshake returned -0x%04x\n",
-                    thread_id, -ret );
-            goto thread_exit;
-        }
-    }
-
-    mbedtls_printf( "  [ #%ld ]  ok\n", thread_id );
-
-    /*
-     * 6. Read the HTTP Request
-     */
-    mbedtls_printf( "  [ #%ld ]  < Read from client\n", thread_id );
-
-    do
-    {
-        len = sizeof( buf ) - 1;
-        memset( buf, 0, sizeof( buf ) );
-        ret = mbedtls_ssl_read( &ssl, buf, len );
-
-        if( ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE )
-            continue;
-
-        if( ret <= 0 )
-        {
-            switch( ret )
-            {
-                case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
-                    mbedtls_printf( "  [ #%ld ]  connection was closed gracefully\n",
-                            thread_id );
-                    goto thread_exit;
-
-                case MBEDTLS_ERR_NET_CONN_RESET:
-                    mbedtls_printf( "  [ #%ld ]  connection was reset by peer\n",
-                            thread_id );
-                    goto thread_exit;
-
-                default:
-                    mbedtls_printf( "  [ #%ld ]  mbedtls_ssl_read returned -0x%04x\n",
-                            thread_id, -ret );
-                    goto thread_exit;
-            }
-        }
-
-        len = ret;
-        mbedtls_printf( "  [ #%ld ]  %d bytes read\n=====\n%s\n=====\n",
-                thread_id, len, (char *) buf );
-
-        if( ret > 0 )
-            break;
-    }
-    while( 1 );
-
-    /*
-     * 7. Write the 200 Response
-     */
-    mbedtls_printf( "  [ #%ld ]  > Write to client:\n", thread_id );
-
-    len = sprintf( (char *) buf, HTTP_RESPONSE,
-                   mbedtls_ssl_get_ciphersuite( &ssl ) );
-
-    while( ( ret = mbedtls_ssl_write( &ssl, buf, len ) ) <= 0 )
-    {
-        if( ret == MBEDTLS_ERR_NET_CONN_RESET )
-        {
-            mbedtls_printf( "  [ #%ld ]  failed: peer closed the connection\n",
-                    thread_id );
-            goto thread_exit;
-        }
-
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-            mbedtls_printf( "  [ #%ld ]  failed: mbedtls_ssl_write returned -0x%04x\n",
-                    thread_id, ret );
-            goto thread_exit;
-        }
-    }
-
-    len = ret;
-    mbedtls_printf( "  [ #%ld ]  %d bytes written\n=====\n%s\n=====\n",
-            thread_id, len, (char *) buf );
-
-    mbedtls_printf( "  [ #%ld ]  . Closing the connection...", thread_id );
-
-    while( ( ret = mbedtls_ssl_close_notify( &ssl ) ) < 0 )
-    {
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
-            ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-            mbedtls_printf( "  [ #%ld ]  failed: mbedtls_ssl_close_notify returned -0x%04x\n",
-                    thread_id, ret );
-            goto thread_exit;
-        }
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    ret = 0;
-
-thread_exit:
-
-#ifdef MBEDTLS_ERROR_C
-    if( ret != 0 )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        mbedtls_printf("  [ #%ld ]  Last error was: -0x%04x - %s\n\n",
-               thread_id, -ret, error_buf );
-    }
-#endif
-
-    mbedtls_net_free( client_fd );
-    mbedtls_ssl_free( &ssl );
-
-    thread_info->thread_complete = 1;
-
-    return( NULL );
-}
-
-static int thread_create( mbedtls_net_context *client_fd )
-{
-    int ret, i;
-
-    /*
-     * Find in-active or finished thread slot
-     */
-    for( i = 0; i < MAX_NUM_THREADS; i++ )
-    {
-        if( threads[i].active == 0 )
-            break;
-
-        if( threads[i].data.thread_complete == 1 )
-        {
-            mbedtls_printf( "  [ main ]  Cleaning up thread %d\n", i );
-            pthread_join(threads[i].thread, NULL );
-            memset( &threads[i], 0, sizeof(pthread_info_t) );
-            break;
-        }
-    }
-
-    if( i == MAX_NUM_THREADS )
-        return( -1 );
-
-    /*
-     * Fill thread-info for thread
-     */
-    memcpy( &threads[i].data, &base_info, sizeof(base_info) );
-    threads[i].active = 1;
-    memcpy( &threads[i].data.client_fd, client_fd, sizeof( mbedtls_net_context ) );
-
-    if( ( ret = pthread_create( &threads[i].thread, NULL, handle_ssl_connection,
-                                &threads[i].data ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    return( 0 );
-}
-
-int main( void )
-{
-    int ret;
-    mbedtls_net_context listen_fd, client_fd;
-    const char pers[] = "ssl_pthread_server";
-
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_config conf;
-    mbedtls_x509_crt srvcert;
-    mbedtls_x509_crt cachain;
-    mbedtls_pk_context pkey;
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
-    unsigned char alloc_buf[100000];
-#endif
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_context cache;
-#endif
-
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
-    mbedtls_memory_buffer_alloc_init( alloc_buf, sizeof(alloc_buf) );
-#endif
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_init( &cache );
-#endif
-
-    mbedtls_x509_crt_init( &srvcert );
-    mbedtls_x509_crt_init( &cachain );
-
-    mbedtls_ssl_config_init( &conf );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-    memset( threads, 0, sizeof(threads) );
-    mbedtls_net_init( &listen_fd );
-    mbedtls_net_init( &client_fd );
-
-    mbedtls_mutex_init( &debug_mutex );
-
-    base_info.config = &conf;
-
-    /*
-     * We use only a single entropy source that is used in all the threads.
-     */
-    mbedtls_entropy_init( &entropy );
-
-    /*
-     * 1. Load the certificates and private RSA key
-     */
-    mbedtls_printf( "\n  . Loading the server cert. and key..." );
-    fflush( stdout );
-
-    /*
-     * This demonstration program uses embedded test certificates.
-     * Instead, you may want to use mbedtls_x509_crt_parse_file() to read the
-     * server and CA certificates, as well as mbedtls_pk_parse_keyfile().
-     */
-    ret = mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_srv_crt,
-                          mbedtls_test_srv_crt_len );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned %d\n\n", ret );
-        goto exit;
-    }
-
-    ret = mbedtls_x509_crt_parse( &cachain, (const unsigned char *) mbedtls_test_cas_pem,
-                          mbedtls_test_cas_pem_len );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_pk_init( &pkey );
-    ret =  mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
-                         mbedtls_test_srv_key_len, NULL, 0 );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_pk_parse_key returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1b. Seed the random number generator
-     */
-    mbedtls_printf( "  . Seeding the random number generator..." );
-
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed: mbedtls_ctr_drbg_seed returned -0x%04x\n",
-                -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1c. Prepare SSL configuration
-     */
-    mbedtls_printf( "  . Setting up the SSL data...." );
-
-    if( ( ret = mbedtls_ssl_config_defaults( &conf,
-                    MBEDTLS_SSL_IS_SERVER,
-                    MBEDTLS_SSL_TRANSPORT_STREAM,
-                    MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
-    {
-        mbedtls_printf( " failed: mbedtls_ssl_config_defaults returned -0x%04x\n",
-                -ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-    mbedtls_ssl_conf_dbg( &conf, my_mutexed_debug, stdout );
-
-    /* mbedtls_ssl_cache_get() and mbedtls_ssl_cache_set() are thread-safe if
-     * MBEDTLS_THREADING_C is set.
-     */
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_conf_session_cache( &conf, &cache,
-                                   mbedtls_ssl_cache_get,
-                                   mbedtls_ssl_cache_set );
-#endif
-
-    mbedtls_ssl_conf_ca_chain( &conf, &cachain, NULL );
-    if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert, &pkey ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-
-    /*
-     * 2. Setup the listening TCP socket
-     */
-    mbedtls_printf( "  . Bind on https://localhost:4433/ ..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_bind( &listen_fd, NULL, "4433", MBEDTLS_NET_PROTO_TCP ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_bind returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-reset:
-#ifdef MBEDTLS_ERROR_C
-    if( ret != 0 )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        mbedtls_printf( "  [ main ]  Last error was: -0x%04x - %s\n", -ret, error_buf );
-    }
-#endif
-
-    /*
-     * 3. Wait until a client connects
-     */
-    mbedtls_printf( "  [ main ]  Waiting for a remote connection\n" );
-
-    if( ( ret = mbedtls_net_accept( &listen_fd, &client_fd,
-                                    NULL, 0, NULL ) ) != 0 )
-    {
-        mbedtls_printf( "  [ main ] failed: mbedtls_net_accept returned -0x%04x\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( "  [ main ]  ok\n" );
-    mbedtls_printf( "  [ main ]  Creating a new thread\n" );
-
-    if( ( ret = thread_create( &client_fd ) ) != 0 )
-    {
-        mbedtls_printf( "  [ main ]  failed: thread_create returned %d\n", ret );
-        mbedtls_net_free( &client_fd );
-        goto reset;
-    }
-
-    ret = 0;
-    goto reset;
-
-exit:
-    mbedtls_x509_crt_free( &srvcert );
-    mbedtls_pk_free( &pkey );
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_free( &cache );
-#endif
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-    mbedtls_ssl_config_free( &conf );
-
-    mbedtls_net_free( &listen_fd );
-
-    mbedtls_mutex_free( &debug_mutex );
-
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
-    mbedtls_memory_buffer_alloc_free();
-#endif
-
-#if defined(_WIN32)
-    mbedtls_printf( "  Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( ret );
-}
-
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_CERTS_C && MBEDTLS_ENTROPY_C &&
-          MBEDTLS_SSL_TLS_C && MBEDTLS_SSL_SRV_C && MBEDTLS_NET_C &&
-          MBEDTLS_RSA_C && MBEDTLS_CTR_DRBG_C && MBEDTLS_THREADING_C &&
-          MBEDTLS_THREADING_PTHREAD && MBEDTLS_PEM_PARSE_C */
diff --git a/programs/ssl/ssl_server.c b/programs/ssl/ssl_server.c
deleted file mode 100644
index 1852b2b..0000000
--- a/programs/ssl/ssl_server.c
+++ /dev/null
@@ -1,416 +0,0 @@
-/*
- *  SSL server demonstration program
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_time       time
-#define mbedtls_time_t     time_t
-#define mbedtls_fprintf    fprintf
-#define mbedtls_printf     printf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif
-
-#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_CERTS_C) ||    \
-    !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_SSL_TLS_C) || \
-    !defined(MBEDTLS_SSL_SRV_C) || !defined(MBEDTLS_NET_C) ||     \
-    !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_CTR_DRBG_C) ||    \
-    !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_FS_IO) || \
-    !defined(MBEDTLS_PEM_PARSE_C)
-int main( void )
-{
-    mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_CERTS_C and/or MBEDTLS_ENTROPY_C "
-           "and/or MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_SRV_C and/or "
-           "MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
-           "MBEDTLS_CTR_DRBG_C and/or MBEDTLS_X509_CRT_PARSE_C "
-           "and/or MBEDTLS_PEM_PARSE_C not defined.\n");
-    return( 0 );
-}
-#else
-
-#include <stdlib.h>
-#include <string.h>
-
-#if defined(_WIN32)
-#include <windows.h>
-#endif
-
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/certs.h"
-#include "mbedtls/x509.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/error.h"
-#include "mbedtls/debug.h"
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-#include "mbedtls/ssl_cache.h"
-#endif
-
-#define HTTP_RESPONSE \
-    "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n" \
-    "<h2>mbed TLS Test Server</h2>\r\n" \
-    "<p>Successful connection using: %s</p>\r\n"
-
-#define DEBUG_LEVEL 0
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#include "mbedtls/platform_util.h"
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-static void my_debug( void *ctx, int level,
-                      const char *file, int line,
-                      const char *str )
-{
-    ((void) level);
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: %s", file, line, str );
-    fflush(  (FILE *) ctx  );
-}
-
-int main( void )
-{
-    int ret, len;
-    mbedtls_net_context listen_fd, client_fd;
-    unsigned char buf[1024];
-    const char *pers = "ssl_server";
-
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_context ssl;
-    mbedtls_ssl_config conf;
-    mbedtls_x509_crt srvcert;
-    mbedtls_pk_context pkey;
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_context cache;
-#endif
-
-    mbedtls_net_init( &listen_fd );
-    mbedtls_net_init( &client_fd );
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_init( &cache );
-#endif
-    mbedtls_x509_crt_init( &srvcert );
-    mbedtls_pk_init( &pkey );
-    mbedtls_entropy_init( &entropy );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-
-#if defined(MBEDTLS_DEBUG_C)
-    mbedtls_debug_set_threshold( DEBUG_LEVEL );
-#endif
-
-    /*
-     * 1. Load the certificates and private RSA key
-     */
-    mbedtls_printf( "\n  . Loading the server cert. and key..." );
-    fflush( stdout );
-
-    /*
-     * This demonstration program uses embedded test certificates.
-     * Instead, you may want to use mbedtls_x509_crt_parse_file() to read the
-     * server and CA certificates, as well as mbedtls_pk_parse_keyfile().
-     */
-    ret = mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_srv_crt,
-                          mbedtls_test_srv_crt_len );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned %d\n\n", ret );
-        goto exit;
-    }
-
-    ret = mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_cas_pem,
-                          mbedtls_test_cas_pem_len );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned %d\n\n", ret );
-        goto exit;
-    }
-
-    ret =  mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
-                         mbedtls_test_srv_key_len, NULL, 0 );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_pk_parse_key returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 2. Setup the listening TCP socket
-     */
-    mbedtls_printf( "  . Bind on https://localhost:4433/ ..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_bind( &listen_fd, NULL, "4433", MBEDTLS_NET_PROTO_TCP ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_bind returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 3. Seed the RNG
-     */
-    mbedtls_printf( "  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 4. Setup stuff
-     */
-    mbedtls_printf( "  . Setting up the SSL data...." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ssl_config_defaults( &conf,
-                    MBEDTLS_SSL_IS_SERVER,
-                    MBEDTLS_SSL_TRANSPORT_STREAM,
-                    MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_config_defaults returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-    mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_conf_session_cache( &conf, &cache,
-                                   mbedtls_ssl_cache_get,
-                                   mbedtls_ssl_cache_set );
-#endif
-
-    mbedtls_ssl_conf_ca_chain( &conf, srvcert.next, NULL );
-    if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert, &pkey ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
-        goto exit;
-    }
-
-    if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-reset:
-#ifdef MBEDTLS_ERROR_C
-    if( ret != 0 )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        mbedtls_printf("Last error was: %d - %s\n\n", ret, error_buf );
-    }
-#endif
-
-    mbedtls_net_free( &client_fd );
-
-    mbedtls_ssl_session_reset( &ssl );
-
-    /*
-     * 3. Wait until a client connects
-     */
-    mbedtls_printf( "  . Waiting for a remote connection ..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_accept( &listen_fd, &client_fd,
-                                    NULL, 0, NULL ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_accept returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_set_bio( &ssl, &client_fd, mbedtls_net_send, mbedtls_net_recv, NULL );
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 5. Handshake
-     */
-    mbedtls_printf( "  . Performing the SSL/TLS handshake..." );
-    fflush( stdout );
-
-    while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
-    {
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_handshake returned %d\n\n", ret );
-            goto reset;
-        }
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 6. Read the HTTP Request
-     */
-    mbedtls_printf( "  < Read from client:" );
-    fflush( stdout );
-
-    do
-    {
-        len = sizeof( buf ) - 1;
-        memset( buf, 0, sizeof( buf ) );
-        ret = mbedtls_ssl_read( &ssl, buf, len );
-
-        if( ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE )
-            continue;
-
-        if( ret <= 0 )
-        {
-            switch( ret )
-            {
-                case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
-                    mbedtls_printf( " connection was closed gracefully\n" );
-                    break;
-
-                case MBEDTLS_ERR_NET_CONN_RESET:
-                    mbedtls_printf( " connection was reset by peer\n" );
-                    break;
-
-                default:
-                    mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n", -ret );
-                    break;
-            }
-
-            break;
-        }
-
-        len = ret;
-        mbedtls_printf( " %d bytes read\n\n%s", len, (char *) buf );
-
-        if( ret > 0 )
-            break;
-    }
-    while( 1 );
-
-    /*
-     * 7. Write the 200 Response
-     */
-    mbedtls_printf( "  > Write to client:" );
-    fflush( stdout );
-
-    len = sprintf( (char *) buf, HTTP_RESPONSE,
-                   mbedtls_ssl_get_ciphersuite( &ssl ) );
-
-    while( ( ret = mbedtls_ssl_write( &ssl, buf, len ) ) <= 0 )
-    {
-        if( ret == MBEDTLS_ERR_NET_CONN_RESET )
-        {
-            mbedtls_printf( " failed\n  ! peer closed the connection\n\n" );
-            goto reset;
-        }
-
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_write returned %d\n\n", ret );
-            goto exit;
-        }
-    }
-
-    len = ret;
-    mbedtls_printf( " %d bytes written\n\n%s\n", len, (char *) buf );
-
-    mbedtls_printf( "  . Closing the connection..." );
-
-    while( ( ret = mbedtls_ssl_close_notify( &ssl ) ) < 0 )
-    {
-        if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
-            ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_close_notify returned %d\n\n", ret );
-            goto reset;
-        }
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    ret = 0;
-    goto reset;
-
-exit:
-
-#ifdef MBEDTLS_ERROR_C
-    if( ret != 0 )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        mbedtls_printf("Last error was: %d - %s\n\n", ret, error_buf );
-    }
-#endif
-
-    mbedtls_net_free( &client_fd );
-    mbedtls_net_free( &listen_fd );
-
-    mbedtls_x509_crt_free( &srvcert );
-    mbedtls_pk_free( &pkey );
-    mbedtls_ssl_free( &ssl );
-    mbedtls_ssl_config_free( &conf );
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_free( &cache );
-#endif
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( ret );
-}
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_CERTS_C && MBEDTLS_ENTROPY_C &&
-          MBEDTLS_SSL_TLS_C && MBEDTLS_SSL_SRV_C && MBEDTLS_NET_C &&
-          MBEDTLS_RSA_C && MBEDTLS_CTR_DRBG_C && MBEDTLS_X509_CRT_PARSE_C
-          && MBEDTLS_FS_IO && MBEDTLS_PEM_PARSE_C */
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
deleted file mode 100644
index d1e45be..0000000
--- a/programs/ssl/ssl_server2.c
+++ /dev/null
@@ -1,3533 +0,0 @@
-/*
- *  SSL client with options
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_calloc     calloc
-#define mbedtls_free       free
-#define mbedtls_time       time
-#define mbedtls_time_t     time_t
-#define mbedtls_calloc    calloc
-#define mbedtls_fprintf    fprintf
-#define mbedtls_printf     printf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif
-
-#if !defined(MBEDTLS_ENTROPY_C) || \
-    !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_SRV_C) || \
-    !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_CTR_DRBG_C)
-int main( void )
-{
-    mbedtls_printf("MBEDTLS_ENTROPY_C and/or "
-           "MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_SRV_C and/or "
-           "MBEDTLS_NET_C and/or MBEDTLS_CTR_DRBG_C and/or not defined.\n");
-    return( 0 );
-}
-#else
-
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/certs.h"
-#include "mbedtls/x509.h"
-#include "mbedtls/error.h"
-#include "mbedtls/debug.h"
-#include "mbedtls/timing.h"
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "psa/crypto.h"
-#include "mbedtls/psa_util.h"
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdint.h>
-
-#if !defined(_MSC_VER)
-#include <inttypes.h>
-#endif
-
-#if !defined(_WIN32)
-#include <signal.h>
-#endif
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-#include "mbedtls/ssl_cache.h"
-#endif
-
-#if defined(MBEDTLS_SSL_TICKET_C)
-#include "mbedtls/ssl_ticket.h"
-#endif
-
-#if defined(MBEDTLS_SSL_COOKIE_C)
-#include "mbedtls/ssl_cookie.h"
-#endif
-
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
-#include "mbedtls/memory_buffer_alloc.h"
-#endif
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && defined(MBEDTLS_FS_IO)
-#define SNI_OPTION
-#endif
-
-#if defined(_WIN32)
-#include <windows.h>
-#endif
-
-/* Size of memory to be allocated for the heap, when using the library's memory
- * management and MBEDTLS_MEMORY_BUFFER_ALLOC_C is enabled. */
-#define MEMORY_HEAP_SIZE        120000
-
-#define DFL_SERVER_ADDR         NULL
-#define DFL_SERVER_PORT         "4433"
-#define DFL_RESPONSE_SIZE       -1
-#define DFL_DEBUG_LEVEL         0
-#define DFL_NBIO                0
-#define DFL_EVENT               0
-#define DFL_READ_TIMEOUT        0
-#define DFL_CA_FILE             ""
-#define DFL_CA_PATH             ""
-#define DFL_CRT_FILE            ""
-#define DFL_KEY_FILE            ""
-#define DFL_CRT_FILE2           ""
-#define DFL_KEY_FILE2           ""
-#define DFL_ASYNC_OPERATIONS    "-"
-#define DFL_ASYNC_PRIVATE_DELAY1 ( -1 )
-#define DFL_ASYNC_PRIVATE_DELAY2 ( -1 )
-#define DFL_ASYNC_PRIVATE_ERROR  ( 0 )
-#define DFL_PSK                 ""
-#define DFL_PSK_OPAQUE          0
-#define DFL_PSK_LIST_OPAQUE     0
-#define DFL_PSK_IDENTITY        "Client_identity"
-#define DFL_ECJPAKE_PW          NULL
-#define DFL_PSK_LIST            NULL
-#define DFL_FORCE_CIPHER        0
-#define DFL_VERSION_SUITES      NULL
-#define DFL_RENEGOTIATION       MBEDTLS_SSL_RENEGOTIATION_DISABLED
-#define DFL_ALLOW_LEGACY        -2
-#define DFL_RENEGOTIATE         0
-#define DFL_RENEGO_DELAY        -2
-#define DFL_RENEGO_PERIOD       ( (uint64_t)-1 )
-#define DFL_EXCHANGES           1
-#define DFL_MIN_VERSION         -1
-#define DFL_MAX_VERSION         -1
-#define DFL_ARC4                -1
-#define DFL_SHA1                -1
-#define DFL_AUTH_MODE           -1
-#define DFL_CERT_REQ_CA_LIST    MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED
-#define DFL_MFL_CODE            MBEDTLS_SSL_MAX_FRAG_LEN_NONE
-#define DFL_TRUNC_HMAC          -1
-#define DFL_TICKETS             MBEDTLS_SSL_SESSION_TICKETS_ENABLED
-#define DFL_TICKET_TIMEOUT      86400
-#define DFL_CACHE_MAX           -1
-#define DFL_CACHE_TIMEOUT       -1
-#define DFL_SNI                 NULL
-#define DFL_ALPN_STRING         NULL
-#define DFL_CURVES              NULL
-#define DFL_DHM_FILE            NULL
-#define DFL_TRANSPORT           MBEDTLS_SSL_TRANSPORT_STREAM
-#define DFL_COOKIES             1
-#define DFL_ANTI_REPLAY         -1
-#define DFL_HS_TO_MIN           0
-#define DFL_HS_TO_MAX           0
-#define DFL_DTLS_MTU            -1
-#define DFL_BADMAC_LIMIT        -1
-#define DFL_DGRAM_PACKING        1
-#define DFL_EXTENDED_MS         -1
-#define DFL_ETM                 -1
-#define DFL_CA_CALLBACK         0
-
-#define LONG_RESPONSE "<p>01-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n" \
-    "02-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n"  \
-    "03-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n"  \
-    "04-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n"  \
-    "05-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n"  \
-    "06-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n"  \
-    "07-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah</p>\r\n"
-
-/* Uncomment LONG_RESPONSE at the end of HTTP_RESPONSE to test sending longer
- * packets (for fragmentation purposes) */
-#define HTTP_RESPONSE \
-    "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n" \
-    "<h2>mbed TLS Test Server</h2>\r\n" \
-    "<p>Successful connection using: %s</p>\r\n" // LONG_RESPONSE
-
-/*
- * Size of the basic I/O buffer. Able to hold our default response.
- *
- * You will need to adapt the mbedtls_ssl_get_bytes_avail() test in ssl-opt.sh
- * if you change this value to something outside the range <= 100 or > 500
- */
-#define DFL_IO_BUF_LEN      200
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_FS_IO)
-#define USAGE_IO \
-    "    ca_file=%%s          The single file containing the top-level CA(s) you fully trust\n" \
-    "                        default: \"\" (pre-loaded)\n" \
-    "    ca_path=%%s          The path containing the top-level CA(s) you fully trust\n" \
-    "                        default: \"\" (pre-loaded) (overrides ca_file)\n" \
-    "    crt_file=%%s         Your own cert and chain (in bottom to top order, top may be omitted)\n" \
-    "                        default: see note after key_file2\n" \
-    "    key_file=%%s         default: see note after key_file2\n" \
-    "    crt_file2=%%s        Your second cert and chain (in bottom to top order, top may be omitted)\n" \
-    "                        default: see note after key_file2\n" \
-    "    key_file2=%%s        default: see note below\n" \
-    "                        note: if neither crt_file/key_file nor crt_file2/key_file2 are used,\n" \
-    "                              preloaded certificate(s) and key(s) are used if available\n" \
-    "    dhm_file=%%s        File containing Diffie-Hellman parameters\n" \
-    "                       default: preloaded parameters\n"
-#else
-#define USAGE_IO \
-    "\n"                                                    \
-    "    No file operations available (MBEDTLS_FS_IO not defined)\n" \
-    "\n"
-#endif /* MBEDTLS_FS_IO */
-#else
-#define USAGE_IO ""
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-#define USAGE_SSL_ASYNC \
-    "    async_operations=%%c...   d=decrypt, s=sign (default: -=off)\n" \
-    "    async_private_delay1=%%d  Asynchronous delay for key_file or preloaded key\n" \
-    "    async_private_delay2=%%d  Asynchronous delay for key_file2 and sni\n" \
-    "                              default: -1 (not asynchronous)\n" \
-    "    async_private_error=%%d   Async callback error injection (default=0=none,\n" \
-    "                              1=start, 2=cancel, 3=resume, negative=first time only)"
-#else
-#define USAGE_SSL_ASYNC ""
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-#define USAGE_PSK_RAW                                               \
-    "    psk=%%s              default: \"\" (in hex, without 0x)\n"     \
-    "    psk_list=%%s         default: \"\"\n"                          \
-    "                          A list of (PSK identity, PSK value) pairs.\n" \
-    "                          The PSK values are in hex, without 0x.\n" \
-    "                          id1,psk1[,id2,psk2[,...]]\n"             \
-    "    psk_identity=%%s     default: \"Client_identity\"\n"
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-#define USAGE_PSK_SLOT                          \
-    "    psk_opaque=%%d       default: 0 (don't use opaque static PSK)\n"     \
-    "                          Enable this to store the PSK configured through command line\n" \
-    "                          parameter `psk` in a PSA-based key slot.\n" \
-    "                          Note: Currently only supported in conjunction with\n"                  \
-    "                          the use of min_version to force TLS 1.2 and force_ciphersuite \n"      \
-    "                          to force a particular PSK-only ciphersuite.\n"                         \
-    "                          Note: This is to test integration of PSA-based opaque PSKs with\n"     \
-    "                          Mbed TLS only. Production systems are likely to configure Mbed TLS\n"  \
-    "                          with prepopulated key slots instead of importing raw key material.\n" \
-    "    psk_list_opaque=%%d  default: 0 (don't use opaque dynamic PSKs)\n"     \
-    "                          Enable this to store the list of dynamically chosen PSKs configured\n" \
-    "                          through the command line parameter `psk_list` in PSA-based key slots.\n" \
-    "                          Note: Currently only supported in conjunction with\n" \
-    "                          the use of min_version to force TLS 1.2 and force_ciphersuite \n" \
-    "                          to force a particular PSK-only ciphersuite.\n" \
-    "                          Note: This is to test integration of PSA-based opaque PSKs with\n" \
-    "                          Mbed TLS only. Production systems are likely to configure Mbed TLS\n" \
-    "                          with prepopulated key slots instead of importing raw key material.\n"
-#else
-#define USAGE_PSK_SLOT ""
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-#define USAGE_PSK USAGE_PSK_RAW USAGE_PSK_SLOT
-#else
-#define USAGE_PSK ""
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-#define USAGE_CA_CALLBACK                       \
-    "   ca_callback=%%d       default: 0 (disabled)\n"      \
-    "                         Enable this to use the trusted certificate callback function\n"
-#else
-#define USAGE_CA_CALLBACK ""
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-#define USAGE_TICKETS                                       \
-    "    tickets=%%d          default: 1 (enabled)\n"       \
-    "    ticket_timeout=%%d   default: 86400 (one day)\n"
-#else
-#define USAGE_TICKETS ""
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-#define USAGE_CACHE                                             \
-    "    cache_max=%%d        default: cache default (50)\n"    \
-    "    cache_timeout=%%d    default: cache default (1d)\n"
-#else
-#define USAGE_CACHE ""
-#endif /* MBEDTLS_SSL_CACHE_C */
-
-#if defined(SNI_OPTION)
-#define USAGE_SNI                                                           \
-    "    sni=%%s              name1,cert1,key1,ca1,crl1,auth1[,...]\n"  \
-    "                        default: disabled\n"
-#else
-#define USAGE_SNI ""
-#endif /* SNI_OPTION */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-#define USAGE_MAX_FRAG_LEN                                      \
-    "    max_frag_len=%%d     default: 16384 (tls default)\n"   \
-    "                        options: 512, 1024, 2048, 4096\n"
-#else
-#define USAGE_MAX_FRAG_LEN ""
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-#define USAGE_TRUNC_HMAC \
-    "    trunc_hmac=%%d       default: library default\n"
-#else
-#define USAGE_TRUNC_HMAC ""
-#endif
-
-#if defined(MBEDTLS_SSL_ALPN)
-#define USAGE_ALPN \
-    "    alpn=%%s             default: \"\" (disabled)\n"   \
-    "                        example: spdy/1,http/1.1\n"
-#else
-#define USAGE_ALPN ""
-#endif /* MBEDTLS_SSL_ALPN */
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-#define USAGE_COOKIES \
-    "    cookies=0/1/-1      default: 1 (enabled)\n"        \
-    "                        0: disabled, -1: library default (broken)\n"
-#else
-#define USAGE_COOKIES ""
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-#define USAGE_ANTI_REPLAY \
-    "    anti_replay=0/1     default: (library default: enabled)\n"
-#else
-#define USAGE_ANTI_REPLAY ""
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-#define USAGE_BADMAC_LIMIT \
-    "    badmac_limit=%%d     default: (library default: disabled)\n"
-#else
-#define USAGE_BADMAC_LIMIT ""
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-#define USAGE_DTLS \
-    "    dtls=%%d             default: 0 (TLS)\n"                           \
-    "    hs_timeout=%%d-%%d    default: (library default: 1000-60000)\n"    \
-    "                        range of DTLS handshake timeouts in millisecs\n" \
-    "    mtu=%%d              default: (library default: unlimited)\n"  \
-    "    dgram_packing=%%d    default: 1 (allowed)\n"                   \
-    "                        allow or forbid packing of multiple\n" \
-    "                        records within a single datgram.\n"
-#else
-#define USAGE_DTLS ""
-#endif
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-#define USAGE_EMS \
-    "    extended_ms=0/1     default: (library default: on)\n"
-#else
-#define USAGE_EMS ""
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-#define USAGE_ETM \
-    "    etm=0/1             default: (library default: on)\n"
-#else
-#define USAGE_ETM ""
-#endif
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-#define USAGE_RENEGO \
-    "    renegotiation=%%d    default: 0 (disabled)\n"      \
-    "    renegotiate=%%d      default: 0 (disabled)\n"      \
-    "    renego_delay=%%d     default: -2 (library default)\n" \
-    "    renego_period=%%d    default: (2^64 - 1 for TLS, 2^48 - 1 for DTLS)\n"
-#else
-#define USAGE_RENEGO ""
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-#define USAGE_ECJPAKE \
-    "    ecjpake_pw=%%s       default: none (disabled)\n"
-#else
-#define USAGE_ECJPAKE ""
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-#define USAGE_CURVES \
-    "    curves=a,b,c,d      default: \"default\" (library default)\n"  \
-    "                        example: \"secp521r1,brainpoolP512r1\"\n"  \
-    "                        - use \"none\" for empty list\n"           \
-    "                        - see mbedtls_ecp_curve_list()\n"          \
-    "                          for acceptable curve names\n"
-#else
-#define USAGE_CURVES ""
-#endif
-
-#define USAGE \
-    "\n usage: ssl_server2 param=<>...\n"                   \
-    "\n acceptable parameters:\n"                           \
-    "    server_addr=%%s      default: (all interfaces)\n"  \
-    "    server_port=%%d      default: 4433\n"              \
-    "    debug_level=%%d      default: 0 (disabled)\n"      \
-    "    buffer_size=%%d      default: 200 \n" \
-    "                         (minimum: 1, max: 16385)\n" \
-    "    response_size=%%d    default: about 152 (basic response)\n" \
-    "                          (minimum: 0, max: 16384)\n" \
-    "                          increases buffer_size if bigger\n"\
-    "    nbio=%%d             default: 0 (blocking I/O)\n"  \
-    "                        options: 1 (non-blocking), 2 (added delays)\n" \
-    "    event=%%d            default: 0 (loop)\n"                            \
-    "                        options: 1 (level-triggered, implies nbio=1),\n" \
-    "    read_timeout=%%d     default: 0 ms (no timeout)\n"    \
-    "\n"                                                    \
-    USAGE_DTLS                                              \
-    USAGE_COOKIES                                           \
-    USAGE_ANTI_REPLAY                                       \
-    USAGE_BADMAC_LIMIT                                      \
-    "\n"                                                    \
-    "    auth_mode=%%s        default: (library default: none)\n"      \
-    "                        options: none, optional, required\n" \
-    "    cert_req_ca_list=%%d default: 1 (send ca list)\n"  \
-    "                        options: 1 (send ca list), 0 (don't send)\n" \
-    USAGE_IO                                                \
-    USAGE_SSL_ASYNC                                         \
-    USAGE_SNI                                               \
-    "\n"                                                    \
-    USAGE_PSK                                               \
-    USAGE_CA_CALLBACK                                       \
-    USAGE_ECJPAKE                                           \
-    "\n"                                                    \
-    "    allow_legacy=%%d     default: (library default: no)\n"      \
-    USAGE_RENEGO                                            \
-    "    exchanges=%%d        default: 1\n"                 \
-    "\n"                                                    \
-    USAGE_TICKETS                                           \
-    USAGE_CACHE                                             \
-    USAGE_MAX_FRAG_LEN                                      \
-    USAGE_TRUNC_HMAC                                        \
-    USAGE_ALPN                                              \
-    USAGE_EMS                                               \
-    USAGE_ETM                                               \
-    USAGE_CURVES                                            \
-    "\n"                                                    \
-    "    arc4=%%d             default: (library default: 0)\n" \
-    "    allow_sha1=%%d       default: 0\n"                             \
-    "    min_version=%%s      default: (library default: tls1)\n"       \
-    "    max_version=%%s      default: (library default: tls1_2)\n"     \
-    "    force_version=%%s    default: \"\" (none)\n"       \
-    "                        options: ssl3, tls1, tls1_1, tls1_2, dtls1, dtls1_2\n" \
-    "\n"                                                                \
-    "    version_suites=a,b,c,d      per-version ciphersuites\n"        \
-    "                                in order from ssl3 to tls1_2\n"    \
-    "                                default: all enabled\n"            \
-    "    force_ciphersuite=<name>    default: all enabled\n"            \
-    "    query_config=<name>         return 0 if the specified\n"       \
-    "                                configuration macro is defined and 1\n"  \
-    "                                otherwise. The expansion of the macro\n" \
-    "                                is printed if it is defined\n"     \
-    " acceptable ciphersuite names:\n"
-
-
-#define ALPN_LIST_SIZE  10
-#define CURVE_LIST_SIZE 20
-
-#define PUT_UINT64_BE(out_be,in_le,i)                                   \
-{                                                                       \
-    (out_be)[(i) + 0] = (unsigned char)( ( (in_le) >> 56 ) & 0xFF );    \
-    (out_be)[(i) + 1] = (unsigned char)( ( (in_le) >> 48 ) & 0xFF );    \
-    (out_be)[(i) + 2] = (unsigned char)( ( (in_le) >> 40 ) & 0xFF );    \
-    (out_be)[(i) + 3] = (unsigned char)( ( (in_le) >> 32 ) & 0xFF );    \
-    (out_be)[(i) + 4] = (unsigned char)( ( (in_le) >> 24 ) & 0xFF );    \
-    (out_be)[(i) + 5] = (unsigned char)( ( (in_le) >> 16 ) & 0xFF );    \
-    (out_be)[(i) + 6] = (unsigned char)( ( (in_le) >> 8  ) & 0xFF );    \
-    (out_be)[(i) + 7] = (unsigned char)( ( (in_le) >> 0  ) & 0xFF );    \
-}
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#include "mbedtls/platform_util.h"
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-/*
- * global options
- */
-struct options
-{
-    const char *server_addr;    /* address on which the ssl service runs    */
-    const char *server_port;    /* port on which the ssl service runs       */
-    int debug_level;            /* level of debugging                       */
-    int nbio;                   /* should I/O be blocking?                  */
-    int event;                  /* loop or event-driven IO? level or edge triggered? */
-    uint32_t read_timeout;      /* timeout on mbedtls_ssl_read() in milliseconds    */
-    int response_size;          /* pad response with header to requested size */
-    uint16_t buffer_size;       /* IO buffer size */
-    const char *ca_file;        /* the file with the CA certificate(s)      */
-    const char *ca_path;        /* the path with the CA certificate(s) reside */
-    const char *crt_file;       /* the file with the server certificate     */
-    const char *key_file;       /* the file with the server key             */
-    const char *crt_file2;      /* the file with the 2nd server certificate */
-    const char *key_file2;      /* the file with the 2nd server key         */
-    const char *async_operations; /* supported SSL asynchronous operations  */
-    int async_private_delay1;   /* number of times f_async_resume needs to be called for key 1, or -1 for no async */
-    int async_private_delay2;   /* number of times f_async_resume needs to be called for key 2, or -1 for no async */
-    int async_private_error;    /* inject error in async private callback */
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    int psk_opaque;
-    int psk_list_opaque;
-#endif
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    int ca_callback;            /* Use callback for trusted certificate list */
-#endif
-    const char *psk;            /* the pre-shared key                       */
-    const char *psk_identity;   /* the pre-shared key identity              */
-    char *psk_list;             /* list of PSK id/key pairs for callback    */
-    const char *ecjpake_pw;     /* the EC J-PAKE password                   */
-    int force_ciphersuite[2];   /* protocol/ciphersuite to use, or all      */
-    const char *version_suites; /* per-version ciphersuites                 */
-    int renegotiation;          /* enable / disable renegotiation           */
-    int allow_legacy;           /* allow legacy renegotiation               */
-    int renegotiate;            /* attempt renegotiation?                   */
-    int renego_delay;           /* delay before enforcing renegotiation     */
-    uint64_t renego_period;     /* period for automatic renegotiation       */
-    int exchanges;              /* number of data exchanges                 */
-    int min_version;            /* minimum protocol version accepted        */
-    int max_version;            /* maximum protocol version accepted        */
-    int arc4;                   /* flag for arc4 suites support             */
-    int allow_sha1;             /* flag for SHA-1 support                   */
-    int auth_mode;              /* verify mode for connection               */
-    int cert_req_ca_list;       /* should we send the CA list?              */
-    unsigned char mfl_code;     /* code for maximum fragment length         */
-    int trunc_hmac;             /* accept truncated hmac?                   */
-    int tickets;                /* enable / disable session tickets         */
-    int ticket_timeout;         /* session ticket lifetime                  */
-    int cache_max;              /* max number of session cache entries      */
-    int cache_timeout;          /* expiration delay of session cache entries */
-    char *sni;                  /* string describing sni information        */
-    const char *curves;         /* list of supported elliptic curves        */
-    const char *alpn_string;    /* ALPN supported protocols                 */
-    const char *dhm_file;       /* the file with the DH parameters          */
-    int extended_ms;            /* allow negotiation of extended MS?        */
-    int etm;                    /* allow negotiation of encrypt-then-MAC?   */
-    int transport;              /* TLS or DTLS?                             */
-    int cookies;                /* Use cookies for DTLS? -1 to break them   */
-    int anti_replay;            /* Use anti-replay for DTLS? -1 for default */
-    uint32_t hs_to_min;         /* Initial value of DTLS handshake timer    */
-    uint32_t hs_to_max;         /* Max value of DTLS handshake timer        */
-    int dtls_mtu;               /* UDP Maximum tranport unit for DTLS       */
-    int dgram_packing;          /* allow/forbid datagram packing            */
-    int badmac_limit;           /* Limit of records with bad MAC            */
-} opt;
-
-int query_config( const char *config );
-
-static void my_debug( void *ctx, int level,
-                      const char *file, int line,
-                      const char *str )
-{
-    const char *p, *basename;
-
-    /* Extract basename from file */
-    for( p = basename = file; *p != '\0'; p++ )
-        if( *p == '/' || *p == '\\' )
-            basename = p + 1;
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: |%d| %s", basename, line, level, str );
-    fflush(  (FILE *) ctx  );
-}
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-int ca_callback( void *data, mbedtls_x509_crt const *child,
-                 mbedtls_x509_crt **candidates)
-{
-    int ret = 0;
-    mbedtls_x509_crt *ca = (mbedtls_x509_crt *) data;
-    mbedtls_x509_crt *first;
-
-    /* This is a test-only implementation of the CA callback
-     * which always returns the entire list of trusted certificates.
-     * Production implementations managing a large number of CAs
-     * should use an efficient presentation and lookup for the
-     * set of trusted certificates (such as a hashtable) and only
-     * return those trusted certificates which satisfy basic
-     * parental checks, such as the matching of child `Issuer`
-     * and parent `Subject` field. */
-    ((void) child);
-
-    first = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
-    if( first == NULL )
-    {
-        ret = -1;
-        goto exit;
-    }
-    mbedtls_x509_crt_init( first );
-
-    if( mbedtls_x509_crt_parse_der( first, ca->raw.p, ca->raw.len ) != 0 )
-    {
-        ret = -1;
-        goto exit;
-    }
-
-    while( ca->next != NULL )
-    {
-        ca = ca->next;
-        if( mbedtls_x509_crt_parse_der( first, ca->raw.p, ca->raw.len ) != 0 )
-        {
-            ret = -1;
-            goto exit;
-        }
-    }
-
-exit:
-
-    if( ret != 0 )
-    {
-        mbedtls_x509_crt_free( first );
-        mbedtls_free( first );
-        first = NULL;
-    }
-
-    *candidates = first;
-    return( ret );
-}
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-
-/*
- * Test recv/send functions that make sure each try returns
- * WANT_READ/WANT_WRITE at least once before sucesseding
- */
-static int my_recv( void *ctx, unsigned char *buf, size_t len )
-{
-    static int first_try = 1;
-    int ret;
-
-    if( first_try )
-    {
-        first_try = 0;
-        return( MBEDTLS_ERR_SSL_WANT_READ );
-    }
-
-    ret = mbedtls_net_recv( ctx, buf, len );
-    if( ret != MBEDTLS_ERR_SSL_WANT_READ )
-        first_try = 1; /* Next call will be a new operation */
-    return( ret );
-}
-
-static int my_send( void *ctx, const unsigned char *buf, size_t len )
-{
-    static int first_try = 1;
-    int ret;
-
-    if( first_try )
-    {
-        first_try = 0;
-        return( MBEDTLS_ERR_SSL_WANT_WRITE );
-    }
-
-    ret = mbedtls_net_send( ctx, buf, len );
-    if( ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-        first_try = 1; /* Next call will be a new operation */
-    return( ret );
-}
-
-/*
- * Return authmode from string, or -1 on error
- */
-static int get_auth_mode( const char *s )
-{
-    if( strcmp( s, "none" ) == 0 )
-        return( MBEDTLS_SSL_VERIFY_NONE );
-    if( strcmp( s, "optional" ) == 0 )
-        return( MBEDTLS_SSL_VERIFY_OPTIONAL );
-    if( strcmp( s, "required" ) == 0 )
-        return( MBEDTLS_SSL_VERIFY_REQUIRED );
-
-    return( -1 );
-}
-
-/*
- * Used by sni_parse and psk_parse to handle coma-separated lists
- */
-#define GET_ITEM( dst )         \
-    dst = p;                    \
-    while( *p != ',' )          \
-        if( ++p > end )         \
-            goto error;         \
-    *p++ = '\0';
-
-#if defined(SNI_OPTION)
-typedef struct _sni_entry sni_entry;
-
-struct _sni_entry {
-    const char *name;
-    mbedtls_x509_crt *cert;
-    mbedtls_pk_context *key;
-    mbedtls_x509_crt* ca;
-    mbedtls_x509_crl* crl;
-    int authmode;
-    sni_entry *next;
-};
-
-void sni_free( sni_entry *head )
-{
-    sni_entry *cur = head, *next;
-
-    while( cur != NULL )
-    {
-        mbedtls_x509_crt_free( cur->cert );
-        mbedtls_free( cur->cert );
-
-        mbedtls_pk_free( cur->key );
-        mbedtls_free( cur->key );
-
-        mbedtls_x509_crt_free( cur->ca );
-        mbedtls_free( cur->ca );
-
-        mbedtls_x509_crl_free( cur->crl );
-        mbedtls_free( cur->crl );
-
-        next = cur->next;
-        mbedtls_free( cur );
-        cur = next;
-    }
-}
-
-/*
- * Parse a string of sextuples name1,crt1,key1,ca1,crl1,auth1[,...]
- * into a usable sni_entry list. For ca1, crl1, auth1, the special value
- * '-' means unset. If ca1 is unset, then crl1 is ignored too.
- *
- * Modifies the input string! This is not production quality!
- */
-sni_entry *sni_parse( char *sni_string )
-{
-    sni_entry *cur = NULL, *new = NULL;
-    char *p = sni_string;
-    char *end = p;
-    char *crt_file, *key_file, *ca_file, *crl_file, *auth_str;
-
-    while( *end != '\0' )
-        ++end;
-    *end = ',';
-
-    while( p <= end )
-    {
-        if( ( new = mbedtls_calloc( 1, sizeof( sni_entry ) ) ) == NULL )
-        {
-            sni_free( cur );
-            return( NULL );
-        }
-
-        GET_ITEM( new->name );
-        GET_ITEM( crt_file );
-        GET_ITEM( key_file );
-        GET_ITEM( ca_file );
-        GET_ITEM( crl_file );
-        GET_ITEM( auth_str );
-
-        if( ( new->cert = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ) ) == NULL ||
-            ( new->key = mbedtls_calloc( 1, sizeof( mbedtls_pk_context ) ) ) == NULL )
-            goto error;
-
-        mbedtls_x509_crt_init( new->cert );
-        mbedtls_pk_init( new->key );
-
-        if( mbedtls_x509_crt_parse_file( new->cert, crt_file ) != 0 ||
-            mbedtls_pk_parse_keyfile( new->key, key_file, "" ) != 0 )
-            goto error;
-
-        if( strcmp( ca_file, "-" ) != 0 )
-        {
-            if( ( new->ca = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ) ) == NULL )
-                goto error;
-
-            mbedtls_x509_crt_init( new->ca );
-
-            if( mbedtls_x509_crt_parse_file( new->ca, ca_file ) != 0 )
-                goto error;
-        }
-
-        if( strcmp( crl_file, "-" ) != 0 )
-        {
-            if( ( new->crl = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl ) ) ) == NULL )
-                goto error;
-
-            mbedtls_x509_crl_init( new->crl );
-
-            if( mbedtls_x509_crl_parse_file( new->crl, crl_file ) != 0 )
-                goto error;
-        }
-
-        if( strcmp( auth_str, "-" ) != 0 )
-        {
-            if( ( new->authmode = get_auth_mode( auth_str ) ) < 0 )
-                goto error;
-        }
-        else
-            new->authmode = DFL_AUTH_MODE;
-
-        new->next = cur;
-        cur = new;
-    }
-
-    return( cur );
-
-error:
-    sni_free( new );
-    sni_free( cur );
-    return( NULL );
-}
-
-/*
- * SNI callback.
- */
-int sni_callback( void *p_info, mbedtls_ssl_context *ssl,
-                  const unsigned char *name, size_t name_len )
-{
-    const sni_entry *cur = (const sni_entry *) p_info;
-
-    while( cur != NULL )
-    {
-        if( name_len == strlen( cur->name ) &&
-            memcmp( name, cur->name, name_len ) == 0 )
-        {
-            if( cur->ca != NULL )
-                mbedtls_ssl_set_hs_ca_chain( ssl, cur->ca, cur->crl );
-
-            if( cur->authmode != DFL_AUTH_MODE )
-                mbedtls_ssl_set_hs_authmode( ssl, cur->authmode );
-
-            return( mbedtls_ssl_set_hs_own_cert( ssl, cur->cert, cur->key ) );
-        }
-
-        cur = cur->next;
-    }
-
-    return( -1 );
-}
-
-#endif /* SNI_OPTION */
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-
-#define HEX2NUM( c )                    \
-        if( c >= '0' && c <= '9' )      \
-            c -= '0';                   \
-        else if( c >= 'a' && c <= 'f' ) \
-            c -= 'a' - 10;              \
-        else if( c >= 'A' && c <= 'F' ) \
-            c -= 'A' - 10;              \
-        else                            \
-            return( -1 );
-
-/*
- * Convert a hex string to bytes.
- * Return 0 on success, -1 on error.
- */
-int unhexify( unsigned char *output, const char *input, size_t *olen )
-{
-    unsigned char c;
-    size_t j;
-
-    *olen = strlen( input );
-    if( *olen % 2 != 0 || *olen / 2 > MBEDTLS_PSK_MAX_LEN )
-        return( -1 );
-    *olen /= 2;
-
-    for( j = 0; j < *olen * 2; j += 2 )
-    {
-        c = input[j];
-        HEX2NUM( c );
-        output[ j / 2 ] = c << 4;
-
-        c = input[j + 1];
-        HEX2NUM( c );
-        output[ j / 2 ] |= c;
-    }
-
-    return( 0 );
-}
-
-typedef struct _psk_entry psk_entry;
-
-struct _psk_entry
-{
-    const char *name;
-    size_t key_len;
-    unsigned char key[MBEDTLS_PSK_MAX_LEN];
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_key_handle_t slot;
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    psk_entry *next;
-};
-
-/*
- * Free a list of psk_entry's
- */
-int psk_free( psk_entry *head )
-{
-    psk_entry *next;
-
-    while( head != NULL )
-    {
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        psa_status_t status;
-        psa_key_handle_t const slot = head->slot;
-
-        if( slot != 0 )
-        {
-            status = psa_destroy_key( slot );
-            if( status != PSA_SUCCESS )
-                return( status );
-        }
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-        next = head->next;
-        mbedtls_free( head );
-        head = next;
-    }
-
-    return( 0 );
-}
-
-/*
- * Parse a string of pairs name1,key1[,name2,key2[,...]]
- * into a usable psk_entry list.
- *
- * Modifies the input string! This is not production quality!
- */
-psk_entry *psk_parse( char *psk_string )
-{
-    psk_entry *cur = NULL, *new = NULL;
-    char *p = psk_string;
-    char *end = p;
-    char *key_hex;
-
-    while( *end != '\0' )
-        ++end;
-    *end = ',';
-
-    while( p <= end )
-    {
-        if( ( new = mbedtls_calloc( 1, sizeof( psk_entry ) ) ) == NULL )
-            goto error;
-
-        memset( new, 0, sizeof( psk_entry ) );
-
-        GET_ITEM( new->name );
-        GET_ITEM( key_hex );
-
-        if( unhexify( new->key, key_hex, &new->key_len ) != 0 )
-            goto error;
-
-        new->next = cur;
-        cur = new;
-    }
-
-    return( cur );
-
-error:
-    psk_free( new );
-    psk_free( cur );
-    return( 0 );
-}
-
-/*
- * PSK callback
- */
-int psk_callback( void *p_info, mbedtls_ssl_context *ssl,
-                  const unsigned char *name, size_t name_len )
-{
-    psk_entry *cur = (psk_entry *) p_info;
-
-    while( cur != NULL )
-    {
-        if( name_len == strlen( cur->name ) &&
-            memcmp( name, cur->name, name_len ) == 0 )
-        {
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-            if( cur->slot != 0 )
-                return( mbedtls_ssl_set_hs_psk_opaque( ssl, cur->slot ) );
-            else
-#endif
-            return( mbedtls_ssl_set_hs_psk( ssl, cur->key, cur->key_len ) );
-        }
-
-        cur = cur->next;
-    }
-
-    return( -1 );
-}
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-static mbedtls_net_context listen_fd, client_fd;
-
-/* Interruption handler to ensure clean exit (for valgrind testing) */
-#if !defined(_WIN32)
-static int received_sigterm = 0;
-void term_handler( int sig )
-{
-    ((void) sig);
-    received_sigterm = 1;
-    mbedtls_net_free( &listen_fd ); /* causes mbedtls_net_accept() to abort */
-    mbedtls_net_free( &client_fd ); /* causes net_read() to abort */
-}
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-static int ssl_sig_hashes_for_test[] = {
-#if defined(MBEDTLS_SHA512_C)
-    MBEDTLS_MD_SHA512,
-    MBEDTLS_MD_SHA384,
-#endif
-#if defined(MBEDTLS_SHA256_C)
-    MBEDTLS_MD_SHA256,
-    MBEDTLS_MD_SHA224,
-#endif
-#if defined(MBEDTLS_SHA1_C)
-    /* Allow SHA-1 as we use it extensively in tests. */
-    MBEDTLS_MD_SHA1,
-#endif
-    MBEDTLS_MD_NONE
-};
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-/** Return true if \p ret is a status code indicating that there is an
- * operation in progress on an SSL connection, and false if it indicates
- * success or a fatal error.
- *
- * The possible operations in progress are:
- *
- * - A read, when the SSL input buffer does not contain a full message.
- * - A write, when the SSL output buffer contains some data that has not
- *   been sent over the network yet.
- * - An asynchronous callback that has not completed yet. */
-static int mbedtls_status_is_ssl_in_progress( int ret )
-{
-    return( ret == MBEDTLS_ERR_SSL_WANT_READ ||
-            ret == MBEDTLS_ERR_SSL_WANT_WRITE ||
-            ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS );
-}
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-typedef struct
-{
-    mbedtls_x509_crt *cert; /*!< Certificate corresponding to the key */
-    mbedtls_pk_context *pk; /*!< Private key */
-    unsigned delay; /*!< Number of resume steps to go through */
-    unsigned pk_owned : 1; /*!< Whether to free the pk object on exit */
-} ssl_async_key_slot_t;
-
-typedef enum {
-    SSL_ASYNC_INJECT_ERROR_NONE = 0, /*!< Let the callbacks succeed */
-    SSL_ASYNC_INJECT_ERROR_START, /*!< Inject error during start */
-    SSL_ASYNC_INJECT_ERROR_CANCEL, /*!< Close the connection after async start */
-    SSL_ASYNC_INJECT_ERROR_RESUME, /*!< Inject error during resume */
-#define SSL_ASYNC_INJECT_ERROR_MAX SSL_ASYNC_INJECT_ERROR_RESUME
-} ssl_async_inject_error_t;
-
-typedef struct
-{
-    ssl_async_key_slot_t slots[4]; /* key, key2, sni1, sni2 */
-    size_t slots_used;
-    ssl_async_inject_error_t inject_error;
-    int (*f_rng)(void *, unsigned char *, size_t);
-    void *p_rng;
-} ssl_async_key_context_t;
-
-int ssl_async_set_key( ssl_async_key_context_t *ctx,
-                       mbedtls_x509_crt *cert,
-                       mbedtls_pk_context *pk,
-                       int pk_take_ownership,
-                       unsigned delay )
-{
-    if( ctx->slots_used >= sizeof( ctx->slots ) / sizeof( *ctx->slots ) )
-        return( -1 );
-    ctx->slots[ctx->slots_used].cert = cert;
-    ctx->slots[ctx->slots_used].pk = pk;
-    ctx->slots[ctx->slots_used].delay = delay;
-    ctx->slots[ctx->slots_used].pk_owned = pk_take_ownership;
-    ++ctx->slots_used;
-    return( 0 );
-}
-
-#define SSL_ASYNC_INPUT_MAX_SIZE 512
-
-typedef enum
-{
-    ASYNC_OP_SIGN,
-    ASYNC_OP_DECRYPT,
-} ssl_async_operation_type_t;
-/* Note that the enum above and the array below need to be kept in sync!
- * `ssl_async_operation_names[op]` is the name of op for each value `op`
- * of type `ssl_async_operation_type_t`. */
-static const char *const ssl_async_operation_names[] =
-{
-    "sign",
-    "decrypt",
-};
-
-typedef struct
-{
-    unsigned slot;
-    ssl_async_operation_type_t operation_type;
-    mbedtls_md_type_t md_alg;
-    unsigned char input[SSL_ASYNC_INPUT_MAX_SIZE];
-    size_t input_len;
-    unsigned remaining_delay;
-} ssl_async_operation_context_t;
-
-static int ssl_async_start( mbedtls_ssl_context *ssl,
-                            mbedtls_x509_crt *cert,
-                            ssl_async_operation_type_t op_type,
-                            mbedtls_md_type_t md_alg,
-                            const unsigned char *input,
-                            size_t input_len )
-{
-    ssl_async_key_context_t *config_data =
-        mbedtls_ssl_conf_get_async_config_data( ssl->conf );
-    unsigned slot;
-    ssl_async_operation_context_t *ctx = NULL;
-    const char *op_name = ssl_async_operation_names[op_type];
-
-    {
-        char dn[100];
-        if( mbedtls_x509_dn_gets( dn, sizeof( dn ), &cert->subject ) > 0 )
-            mbedtls_printf( "Async %s callback: looking for DN=%s\n",
-                            op_name, dn );
-    }
-
-    /* Look for a private key that matches the public key in cert.
-     * Since this test code has the private key inside Mbed TLS,
-     * we call mbedtls_pk_check_pair to match a private key with the
-     * public key. */
-    for( slot = 0; slot < config_data->slots_used; slot++ )
-    {
-        if( mbedtls_pk_check_pair( &cert->pk,
-                                   config_data->slots[slot].pk ) == 0 )
-            break;
-    }
-    if( slot == config_data->slots_used )
-    {
-        mbedtls_printf( "Async %s callback: no key matches this certificate.\n",
-                        op_name );
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH );
-    }
-    mbedtls_printf( "Async %s callback: using key slot %u, delay=%u.\n",
-                    op_name, slot, config_data->slots[slot].delay );
-
-    if( config_data->inject_error == SSL_ASYNC_INJECT_ERROR_START )
-    {
-        mbedtls_printf( "Async %s callback: injected error\n", op_name );
-        return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
-    }
-
-    if( input_len > SSL_ASYNC_INPUT_MAX_SIZE )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    ctx = mbedtls_calloc( 1, sizeof( *ctx ) );
-    if( ctx == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
-    ctx->slot = slot;
-    ctx->operation_type = op_type;
-    ctx->md_alg = md_alg;
-    memcpy( ctx->input, input, input_len );
-    ctx->input_len = input_len;
-    ctx->remaining_delay = config_data->slots[slot].delay;
-    mbedtls_ssl_set_async_operation_data( ssl, ctx );
-
-    if( ctx->remaining_delay == 0 )
-        return( 0 );
-    else
-        return( MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS );
-}
-
-static int ssl_async_sign( mbedtls_ssl_context *ssl,
-                           mbedtls_x509_crt *cert,
-                           mbedtls_md_type_t md_alg,
-                           const unsigned char *hash,
-                           size_t hash_len )
-{
-    return( ssl_async_start( ssl, cert,
-                             ASYNC_OP_SIGN, md_alg,
-                             hash, hash_len ) );
-}
-
-static int ssl_async_decrypt( mbedtls_ssl_context *ssl,
-                              mbedtls_x509_crt *cert,
-                              const unsigned char *input,
-                              size_t input_len )
-{
-    return( ssl_async_start( ssl, cert,
-                             ASYNC_OP_DECRYPT, MBEDTLS_MD_NONE,
-                             input, input_len ) );
-}
-
-static int ssl_async_resume( mbedtls_ssl_context *ssl,
-                             unsigned char *output,
-                             size_t *output_len,
-                             size_t output_size )
-{
-    ssl_async_operation_context_t *ctx = mbedtls_ssl_get_async_operation_data( ssl );
-    ssl_async_key_context_t *config_data =
-        mbedtls_ssl_conf_get_async_config_data( ssl->conf );
-    ssl_async_key_slot_t *key_slot = &config_data->slots[ctx->slot];
-    int ret;
-    const char *op_name;
-
-    if( ctx->remaining_delay > 0 )
-    {
-        --ctx->remaining_delay;
-        mbedtls_printf( "Async resume (slot %u): call %u more times.\n",
-                        ctx->slot, ctx->remaining_delay );
-        return( MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS );
-    }
-
-    switch( ctx->operation_type )
-    {
-        case ASYNC_OP_DECRYPT:
-            ret = mbedtls_pk_decrypt( key_slot->pk,
-                                      ctx->input, ctx->input_len,
-                                      output, output_len, output_size,
-                                      config_data->f_rng, config_data->p_rng );
-            break;
-        case ASYNC_OP_SIGN:
-            ret = mbedtls_pk_sign( key_slot->pk,
-                                   ctx->md_alg,
-                                   ctx->input, ctx->input_len,
-                                   output, output_len,
-                                   config_data->f_rng, config_data->p_rng );
-            break;
-        default:
-            mbedtls_printf( "Async resume (slot %u): unknown operation type %ld. This shouldn't happen.\n",
-                            ctx->slot, (long) ctx->operation_type );
-            mbedtls_free( ctx );
-            return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
-            break;
-    }
-
-    op_name = ssl_async_operation_names[ctx->operation_type];
-
-    if( config_data->inject_error == SSL_ASYNC_INJECT_ERROR_RESUME )
-    {
-        mbedtls_printf( "Async resume callback: %s done but injected error\n",
-                        op_name );
-        mbedtls_free( ctx );
-        return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
-    }
-
-    mbedtls_printf( "Async resume (slot %u): %s done, status=%d.\n",
-                    ctx->slot, op_name, ret );
-    mbedtls_free( ctx );
-    return( ret );
-}
-
-static void ssl_async_cancel( mbedtls_ssl_context *ssl )
-{
-    ssl_async_operation_context_t *ctx = mbedtls_ssl_get_async_operation_data( ssl );
-    mbedtls_printf( "Async cancel callback.\n" );
-    mbedtls_free( ctx );
-}
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-/*
- * Wait for an event from the underlying transport or the timer
- * (Used in event-driven IO mode).
- */
-#if !defined(MBEDTLS_TIMING_C)
-int idle( mbedtls_net_context *fd,
-          int idle_reason )
-#else
-int idle( mbedtls_net_context *fd,
-          mbedtls_timing_delay_context *timer,
-          int idle_reason )
-#endif
-{
-    int ret;
-    int poll_type = 0;
-
-    if( idle_reason == MBEDTLS_ERR_SSL_WANT_WRITE )
-        poll_type = MBEDTLS_NET_POLL_WRITE;
-    else if( idle_reason == MBEDTLS_ERR_SSL_WANT_READ )
-        poll_type = MBEDTLS_NET_POLL_READ;
-#if !defined(MBEDTLS_TIMING_C)
-    else
-        return( 0 );
-#endif
-
-    while( 1 )
-    {
-        /* Check if timer has expired */
-#if defined(MBEDTLS_TIMING_C)
-        if( timer != NULL &&
-            mbedtls_timing_get_delay( timer ) == 2 )
-        {
-            break;
-        }
-#endif /* MBEDTLS_TIMING_C */
-
-        /* Check if underlying transport became available */
-        if( poll_type != 0 )
-        {
-            ret = mbedtls_net_poll( fd, poll_type, 0 );
-            if( ret < 0 )
-                return( ret );
-            if( ret == poll_type )
-                break;
-        }
-    }
-
-    return( 0 );
-}
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-static psa_status_t psa_setup_psk_key_slot( psa_key_handle_t slot,
-                                            psa_algorithm_t alg,
-                                            unsigned char *psk,
-                                            size_t psk_len )
-{
-    psa_status_t status;
-    psa_key_policy_t policy;
-
-    policy = psa_key_policy_init();
-    psa_key_policy_set_usage( &policy, PSA_KEY_USAGE_DERIVE, alg );
-
-    status = psa_set_key_policy( slot, &policy );
-    if( status != PSA_SUCCESS )
-    {
-        fprintf( stderr, "POLICY\n" );
-        return( status );
-    }
-
-    status = psa_import_key( slot, PSA_KEY_TYPE_DERIVE, psk, psk_len );
-    if( status != PSA_SUCCESS )
-    {
-        fprintf( stderr, "IMPORT\n" );
-        return( status );
-    }
-
-    return( PSA_SUCCESS );
-}
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-int main( int argc, char *argv[] )
-{
-    int ret = 0, len, written, frags, exchanges_left;
-    int version_suites[4][2];
-    unsigned char* buf = 0;
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_algorithm_t alg = 0;
-    psa_key_handle_t psk_slot = 0;
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    unsigned char psk[MBEDTLS_PSK_MAX_LEN];
-    size_t psk_len = 0;
-    psk_entry *psk_info = NULL;
-#endif
-    const char *pers = "ssl_server2";
-    unsigned char client_ip[16] = { 0 };
-    size_t cliip_len;
-#if defined(MBEDTLS_SSL_COOKIE_C)
-    mbedtls_ssl_cookie_ctx cookie_ctx;
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_x509_crt_profile crt_profile_for_test = mbedtls_x509_crt_profile_default;
-#endif
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_context ssl;
-    mbedtls_ssl_config conf;
-#if defined(MBEDTLS_TIMING_C)
-    mbedtls_timing_delay_context timer;
-#endif
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    unsigned char renego_period[8] = { 0 };
-#endif
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    uint32_t flags;
-    mbedtls_x509_crt cacert;
-    mbedtls_x509_crt srvcert;
-    mbedtls_pk_context pkey;
-    mbedtls_x509_crt srvcert2;
-    mbedtls_pk_context pkey2;
-    int key_cert_init = 0, key_cert_init2 = 0;
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    ssl_async_key_context_t ssl_async_keys;
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO)
-    mbedtls_dhm_context dhm;
-#endif
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_context cache;
-#endif
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    mbedtls_ssl_ticket_context ticket_ctx;
-#endif
-#if defined(SNI_OPTION)
-    sni_entry *sni_info = NULL;
-#endif
-#if defined(MBEDTLS_ECP_C)
-    mbedtls_ecp_group_id curve_list[CURVE_LIST_SIZE];
-    const mbedtls_ecp_curve_info * curve_cur;
-#endif
-#if defined(MBEDTLS_SSL_ALPN)
-    const char *alpn_list[ALPN_LIST_SIZE];
-#endif
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
-    unsigned char alloc_buf[MEMORY_HEAP_SIZE];
-#endif
-
-    int i;
-    char *p, *q;
-    const int *list;
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_status_t status;
-#endif
-
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
-    mbedtls_memory_buffer_alloc_init( alloc_buf, sizeof(alloc_buf) );
-#endif
-
-    /*
-     * Make sure memory references are valid in case we exit early.
-     */
-    mbedtls_net_init( &client_fd );
-    mbedtls_net_init( &listen_fd );
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_x509_crt_init( &cacert );
-    mbedtls_x509_crt_init( &srvcert );
-    mbedtls_pk_init( &pkey );
-    mbedtls_x509_crt_init( &srvcert2 );
-    mbedtls_pk_init( &pkey2 );
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    memset( &ssl_async_keys, 0, sizeof( ssl_async_keys ) );
-#endif
-#endif
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO)
-    mbedtls_dhm_init( &dhm );
-#endif
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_init( &cache );
-#endif
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    mbedtls_ssl_ticket_init( &ticket_ctx );
-#endif
-#if defined(MBEDTLS_SSL_ALPN)
-    memset( (void *) alpn_list, 0, sizeof( alpn_list ) );
-#endif
-#if defined(MBEDTLS_SSL_COOKIE_C)
-    mbedtls_ssl_cookie_init( &cookie_ctx );
-#endif
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    status = psa_crypto_init();
-    if( status != PSA_SUCCESS )
-    {
-        mbedtls_fprintf( stderr, "Failed to initialize PSA Crypto implementation: %d\n",
-                         (int) status );
-        ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
-        goto exit;
-    }
-#endif
-
-#if !defined(_WIN32)
-    /* Abort cleanly on SIGTERM and SIGINT */
-    signal( SIGTERM, term_handler );
-    signal( SIGINT, term_handler );
-#endif
-
-    if( argc == 0 )
-    {
-    usage:
-        if( ret == 0 )
-            ret = 1;
-
-        mbedtls_printf( USAGE );
-
-        list = mbedtls_ssl_list_ciphersuites();
-        while( *list )
-        {
-            mbedtls_printf(" %-42s", mbedtls_ssl_get_ciphersuite_name( *list ) );
-            list++;
-            if( !*list )
-                break;
-            mbedtls_printf(" %s\n", mbedtls_ssl_get_ciphersuite_name( *list ) );
-            list++;
-        }
-        mbedtls_printf("\n");
-        goto exit;
-    }
-
-    opt.buffer_size         = DFL_IO_BUF_LEN;
-    opt.server_addr         = DFL_SERVER_ADDR;
-    opt.server_port         = DFL_SERVER_PORT;
-    opt.debug_level         = DFL_DEBUG_LEVEL;
-    opt.event               = DFL_EVENT;
-    opt.response_size       = DFL_RESPONSE_SIZE;
-    opt.nbio                = DFL_NBIO;
-    opt.read_timeout        = DFL_READ_TIMEOUT;
-    opt.ca_file             = DFL_CA_FILE;
-    opt.ca_path             = DFL_CA_PATH;
-    opt.crt_file            = DFL_CRT_FILE;
-    opt.key_file            = DFL_KEY_FILE;
-    opt.crt_file2           = DFL_CRT_FILE2;
-    opt.key_file2           = DFL_KEY_FILE2;
-    opt.async_operations    = DFL_ASYNC_OPERATIONS;
-    opt.async_private_delay1 = DFL_ASYNC_PRIVATE_DELAY1;
-    opt.async_private_delay2 = DFL_ASYNC_PRIVATE_DELAY2;
-    opt.async_private_error = DFL_ASYNC_PRIVATE_ERROR;
-    opt.psk                 = DFL_PSK;
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    opt.psk_opaque          = DFL_PSK_OPAQUE;
-    opt.psk_list_opaque     = DFL_PSK_LIST_OPAQUE;
-#endif
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    opt.ca_callback         = DFL_CA_CALLBACK;
-#endif
-    opt.psk_identity        = DFL_PSK_IDENTITY;
-    opt.psk_list            = DFL_PSK_LIST;
-    opt.ecjpake_pw          = DFL_ECJPAKE_PW;
-    opt.force_ciphersuite[0]= DFL_FORCE_CIPHER;
-    opt.version_suites      = DFL_VERSION_SUITES;
-    opt.renegotiation       = DFL_RENEGOTIATION;
-    opt.allow_legacy        = DFL_ALLOW_LEGACY;
-    opt.renegotiate         = DFL_RENEGOTIATE;
-    opt.renego_delay        = DFL_RENEGO_DELAY;
-    opt.renego_period       = DFL_RENEGO_PERIOD;
-    opt.exchanges           = DFL_EXCHANGES;
-    opt.min_version         = DFL_MIN_VERSION;
-    opt.max_version         = DFL_MAX_VERSION;
-    opt.arc4                = DFL_ARC4;
-    opt.allow_sha1          = DFL_SHA1;
-    opt.auth_mode           = DFL_AUTH_MODE;
-    opt.cert_req_ca_list    = DFL_CERT_REQ_CA_LIST;
-    opt.mfl_code            = DFL_MFL_CODE;
-    opt.trunc_hmac          = DFL_TRUNC_HMAC;
-    opt.tickets             = DFL_TICKETS;
-    opt.ticket_timeout      = DFL_TICKET_TIMEOUT;
-    opt.cache_max           = DFL_CACHE_MAX;
-    opt.cache_timeout       = DFL_CACHE_TIMEOUT;
-    opt.sni                 = DFL_SNI;
-    opt.alpn_string         = DFL_ALPN_STRING;
-    opt.curves              = DFL_CURVES;
-    opt.dhm_file            = DFL_DHM_FILE;
-    opt.transport           = DFL_TRANSPORT;
-    opt.cookies             = DFL_COOKIES;
-    opt.anti_replay         = DFL_ANTI_REPLAY;
-    opt.hs_to_min           = DFL_HS_TO_MIN;
-    opt.hs_to_max           = DFL_HS_TO_MAX;
-    opt.dtls_mtu            = DFL_DTLS_MTU;
-    opt.dgram_packing       = DFL_DGRAM_PACKING;
-    opt.badmac_limit        = DFL_BADMAC_LIMIT;
-    opt.extended_ms         = DFL_EXTENDED_MS;
-    opt.etm                 = DFL_ETM;
-
-    for( i = 1; i < argc; i++ )
-    {
-        p = argv[i];
-        if( ( q = strchr( p, '=' ) ) == NULL )
-            goto usage;
-        *q++ = '\0';
-
-        if( strcmp( p, "server_port" ) == 0 )
-            opt.server_port = q;
-        else if( strcmp( p, "server_addr" ) == 0 )
-            opt.server_addr = q;
-        else if( strcmp( p, "dtls" ) == 0 )
-        {
-            int t = atoi( q );
-            if( t == 0 )
-                opt.transport = MBEDTLS_SSL_TRANSPORT_STREAM;
-            else if( t == 1 )
-                opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM;
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "debug_level" ) == 0 )
-        {
-            opt.debug_level = atoi( q );
-            if( opt.debug_level < 0 || opt.debug_level > 65535 )
-                goto usage;
-        }
-        else if( strcmp( p, "nbio" ) == 0 )
-        {
-            opt.nbio = atoi( q );
-            if( opt.nbio < 0 || opt.nbio > 2 )
-                goto usage;
-        }
-        else if( strcmp( p, "event" ) == 0 )
-        {
-            opt.event = atoi( q );
-            if( opt.event < 0 || opt.event > 2 )
-                goto usage;
-        }
-        else if( strcmp( p, "read_timeout" ) == 0 )
-            opt.read_timeout = atoi( q );
-        else if( strcmp( p, "buffer_size" ) == 0 )
-        {
-            opt.buffer_size = atoi( q );
-            if( opt.buffer_size < 1 || opt.buffer_size > MBEDTLS_SSL_MAX_CONTENT_LEN + 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "response_size" ) == 0 )
-        {
-            opt.response_size = atoi( q );
-            if( opt.response_size < 0 || opt.response_size > MBEDTLS_SSL_MAX_CONTENT_LEN )
-                goto usage;
-            if( opt.buffer_size < opt.response_size )
-                opt.buffer_size = opt.response_size;
-        }
-        else if( strcmp( p, "ca_file" ) == 0 )
-            opt.ca_file = q;
-        else if( strcmp( p, "ca_path" ) == 0 )
-            opt.ca_path = q;
-        else if( strcmp( p, "crt_file" ) == 0 )
-            opt.crt_file = q;
-        else if( strcmp( p, "key_file" ) == 0 )
-            opt.key_file = q;
-        else if( strcmp( p, "crt_file2" ) == 0 )
-            opt.crt_file2 = q;
-        else if( strcmp( p, "key_file2" ) == 0 )
-            opt.key_file2 = q;
-        else if( strcmp( p, "dhm_file" ) == 0 )
-            opt.dhm_file = q;
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        else if( strcmp( p, "async_operations" ) == 0 )
-            opt.async_operations = q;
-        else if( strcmp( p, "async_private_delay1" ) == 0 )
-            opt.async_private_delay1 = atoi( q );
-        else if( strcmp( p, "async_private_delay2" ) == 0 )
-            opt.async_private_delay2 = atoi( q );
-        else if( strcmp( p, "async_private_error" ) == 0 )
-        {
-            int n = atoi( q );
-            if( n < -SSL_ASYNC_INJECT_ERROR_MAX ||
-                n > SSL_ASYNC_INJECT_ERROR_MAX )
-            {
-                ret = 2;
-                goto usage;
-            }
-            opt.async_private_error = n;
-        }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-        else if( strcmp( p, "psk" ) == 0 )
-            opt.psk = q;
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        else if( strcmp( p, "psk_opaque" ) == 0 )
-            opt.psk_opaque = atoi( q );
-        else if( strcmp( p, "psk_list_opaque" ) == 0 )
-            opt.psk_list_opaque = atoi( q );
-#endif
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-        else if( strcmp( p, "ca_callback" ) == 0)
-            opt.ca_callback = atoi( q );
-#endif
-        else if( strcmp( p, "psk_identity" ) == 0 )
-            opt.psk_identity = q;
-        else if( strcmp( p, "psk_list" ) == 0 )
-            opt.psk_list = q;
-        else if( strcmp( p, "ecjpake_pw" ) == 0 )
-            opt.ecjpake_pw = q;
-        else if( strcmp( p, "force_ciphersuite" ) == 0 )
-        {
-            opt.force_ciphersuite[0] = mbedtls_ssl_get_ciphersuite_id( q );
-
-            if( opt.force_ciphersuite[0] == 0 )
-            {
-                ret = 2;
-                goto usage;
-            }
-            opt.force_ciphersuite[1] = 0;
-        }
-        else if( strcmp( p, "curves" ) == 0 )
-            opt.curves = q;
-        else if( strcmp( p, "version_suites" ) == 0 )
-            opt.version_suites = q;
-        else if( strcmp( p, "renegotiation" ) == 0 )
-        {
-            opt.renegotiation = (atoi( q )) ?
-                MBEDTLS_SSL_RENEGOTIATION_ENABLED :
-                MBEDTLS_SSL_RENEGOTIATION_DISABLED;
-        }
-        else if( strcmp( p, "allow_legacy" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case -1:
-                    opt.allow_legacy = MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE;
-                    break;
-                case 0:
-                    opt.allow_legacy = MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION;
-                    break;
-                case 1:
-                    opt.allow_legacy = MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION;
-                    break;
-                default: goto usage;
-            }
-        }
-        else if( strcmp( p, "renegotiate" ) == 0 )
-        {
-            opt.renegotiate = atoi( q );
-            if( opt.renegotiate < 0 || opt.renegotiate > 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "renego_delay" ) == 0 )
-        {
-            opt.renego_delay = atoi( q );
-        }
-        else if( strcmp( p, "renego_period" ) == 0 )
-        {
-#if defined(_MSC_VER)
-            opt.renego_period = _strtoui64( q, NULL, 10 );
-#else
-            if( sscanf( q, "%" SCNu64, &opt.renego_period ) != 1 )
-                goto usage;
-#endif /* _MSC_VER */
-            if( opt.renego_period < 2 )
-                goto usage;
-        }
-        else if( strcmp( p, "exchanges" ) == 0 )
-        {
-            opt.exchanges = atoi( q );
-            if( opt.exchanges < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "min_version" ) == 0 )
-        {
-            if( strcmp( q, "ssl3" ) == 0 )
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_0;
-            else if( strcmp( q, "tls1" ) == 0 )
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_1;
-            else if( strcmp( q, "tls1_1" ) == 0 ||
-                     strcmp( q, "dtls1" ) == 0 )
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
-            else if( strcmp( q, "tls1_2" ) == 0 ||
-                     strcmp( q, "dtls1_2" ) == 0 )
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3;
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "max_version" ) == 0 )
-        {
-            if( strcmp( q, "ssl3" ) == 0 )
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_0;
-            else if( strcmp( q, "tls1" ) == 0 )
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_1;
-            else if( strcmp( q, "tls1_1" ) == 0 ||
-                     strcmp( q, "dtls1" ) == 0 )
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2;
-            else if( strcmp( q, "tls1_2" ) == 0 ||
-                     strcmp( q, "dtls1_2" ) == 0 )
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3;
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "arc4" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0:     opt.arc4 = MBEDTLS_SSL_ARC4_DISABLED;   break;
-                case 1:     opt.arc4 = MBEDTLS_SSL_ARC4_ENABLED;    break;
-                default:    goto usage;
-            }
-        }
-        else if( strcmp( p, "allow_sha1" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0:     opt.allow_sha1 = 0;   break;
-                case 1:     opt.allow_sha1 = 1;    break;
-                default:    goto usage;
-            }
-        }
-        else if( strcmp( p, "force_version" ) == 0 )
-        {
-            if( strcmp( q, "ssl3" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_0;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_0;
-            }
-            else if( strcmp( q, "tls1" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_1;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_1;
-            }
-            else if( strcmp( q, "tls1_1" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2;
-            }
-            else if( strcmp( q, "tls1_2" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3;
-            }
-            else if( strcmp( q, "dtls1" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2;
-                opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM;
-            }
-            else if( strcmp( q, "dtls1_2" ) == 0 )
-            {
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3;
-                opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3;
-                opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM;
-            }
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "auth_mode" ) == 0 )
-        {
-            if( ( opt.auth_mode = get_auth_mode( q ) ) < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "cert_req_ca_list" ) == 0 )
-        {
-            opt.cert_req_ca_list = atoi( q );
-            if( opt.cert_req_ca_list < 0 || opt.cert_req_ca_list > 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "max_frag_len" ) == 0 )
-        {
-            if( strcmp( q, "512" ) == 0 )
-                opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_512;
-            else if( strcmp( q, "1024" ) == 0 )
-                opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_1024;
-            else if( strcmp( q, "2048" ) == 0 )
-                opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_2048;
-            else if( strcmp( q, "4096" ) == 0 )
-                opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_4096;
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "alpn" ) == 0 )
-        {
-            opt.alpn_string = q;
-        }
-        else if( strcmp( p, "trunc_hmac" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0: opt.trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_DISABLED; break;
-                case 1: opt.trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED; break;
-                default: goto usage;
-            }
-        }
-        else if( strcmp( p, "extended_ms" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0:
-                    opt.extended_ms = MBEDTLS_SSL_EXTENDED_MS_DISABLED;
-                    break;
-                case 1:
-                    opt.extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
-                    break;
-                default: goto usage;
-            }
-        }
-        else if( strcmp( p, "etm" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0: opt.etm = MBEDTLS_SSL_ETM_DISABLED; break;
-                case 1: opt.etm = MBEDTLS_SSL_ETM_ENABLED; break;
-                default: goto usage;
-            }
-        }
-        else if( strcmp( p, "tickets" ) == 0 )
-        {
-            opt.tickets = atoi( q );
-            if( opt.tickets < 0 || opt.tickets > 1 )
-                goto usage;
-        }
-        else if( strcmp( p, "ticket_timeout" ) == 0 )
-        {
-            opt.ticket_timeout = atoi( q );
-            if( opt.ticket_timeout < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "cache_max" ) == 0 )
-        {
-            opt.cache_max = atoi( q );
-            if( opt.cache_max < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "cache_timeout" ) == 0 )
-        {
-            opt.cache_timeout = atoi( q );
-            if( opt.cache_timeout < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "cookies" ) == 0 )
-        {
-            opt.cookies = atoi( q );
-            if( opt.cookies < -1 || opt.cookies > 1)
-                goto usage;
-        }
-        else if( strcmp( p, "anti_replay" ) == 0 )
-        {
-            opt.anti_replay = atoi( q );
-            if( opt.anti_replay < 0 || opt.anti_replay > 1)
-                goto usage;
-        }
-        else if( strcmp( p, "badmac_limit" ) == 0 )
-        {
-            opt.badmac_limit = atoi( q );
-            if( opt.badmac_limit < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "hs_timeout" ) == 0 )
-        {
-            if( ( p = strchr( q, '-' ) ) == NULL )
-                goto usage;
-            *p++ = '\0';
-            opt.hs_to_min = atoi( q );
-            opt.hs_to_max = atoi( p );
-            if( opt.hs_to_min == 0 || opt.hs_to_max < opt.hs_to_min )
-                goto usage;
-        }
-        else if( strcmp( p, "mtu" ) == 0 )
-        {
-            opt.dtls_mtu = atoi( q );
-            if( opt.dtls_mtu < 0 )
-                goto usage;
-        }
-        else if( strcmp( p, "dgram_packing" ) == 0 )
-        {
-            opt.dgram_packing = atoi( q );
-            if( opt.dgram_packing != 0 &&
-                opt.dgram_packing != 1 )
-            {
-                goto usage;
-            }
-        }
-        else if( strcmp( p, "sni" ) == 0 )
-        {
-            opt.sni = q;
-        }
-        else if( strcmp( p, "query_config" ) == 0 )
-        {
-            return query_config( q );
-        }
-        else
-            goto usage;
-    }
-
-    /* Event-driven IO is incompatible with the above custom
-     * receive and send functions, as the polling builds on
-     * refers to the underlying net_context. */
-    if( opt.event == 1 && opt.nbio != 1 )
-    {
-        mbedtls_printf( "Warning: event-driven IO mandates nbio=1 - overwrite\n" );
-        opt.nbio = 1;
-    }
-
-#if defined(MBEDTLS_DEBUG_C)
-    mbedtls_debug_set_threshold( opt.debug_level );
-#endif
-    buf = mbedtls_calloc( 1, opt.buffer_size + 1 );
-    if( buf == NULL )
-    {
-        mbedtls_printf( "Could not allocate %u bytes\n", opt.buffer_size );
-        ret = 3;
-        goto exit;
-    }
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( opt.psk_opaque != 0 )
-    {
-        if( strlen( opt.psk ) == 0 )
-        {
-            mbedtls_printf( "psk_opaque set but no psk to be imported specified.\n" );
-            ret = 2;
-            goto usage;
-        }
-
-        if( opt.force_ciphersuite[0] <= 0 )
-        {
-            mbedtls_printf( "opaque PSKs are only supported in conjunction with forcing TLS 1.2 and a PSK-only ciphersuite through the 'force_ciphersuite' option.\n" );
-            ret = 2;
-            goto usage;
-        }
-    }
-
-    if( opt.psk_list_opaque != 0 )
-    {
-        if( opt.psk_list == NULL )
-        {
-            mbedtls_printf( "psk_slot set but no psk to be imported specified.\n" );
-            ret = 2;
-            goto usage;
-        }
-
-        if( opt.force_ciphersuite[0] <= 0 )
-        {
-            mbedtls_printf( "opaque PSKs are only supported in conjunction with forcing TLS 1.2 and a PSK-only ciphersuite through the 'force_ciphersuite' option.\n" );
-            ret = 2;
-            goto usage;
-        }
-    }
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-    if( opt.force_ciphersuite[0] > 0 )
-    {
-        const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
-        ciphersuite_info =
-            mbedtls_ssl_ciphersuite_from_id( opt.force_ciphersuite[0] );
-
-        if( opt.max_version != -1 &&
-            ciphersuite_info->min_minor_ver > opt.max_version )
-        {
-            mbedtls_printf( "forced ciphersuite not allowed with this protocol version\n" );
-            ret = 2;
-            goto usage;
-        }
-        if( opt.min_version != -1 &&
-            ciphersuite_info->max_minor_ver < opt.min_version )
-        {
-            mbedtls_printf( "forced ciphersuite not allowed with this protocol version\n" );
-            ret = 2;
-            goto usage;
-        }
-
-        /* If we select a version that's not supported by
-         * this suite, then there will be no common ciphersuite... */
-        if( opt.max_version == -1 ||
-            opt.max_version > ciphersuite_info->max_minor_ver )
-        {
-            opt.max_version = ciphersuite_info->max_minor_ver;
-        }
-        if( opt.min_version < ciphersuite_info->min_minor_ver )
-        {
-            opt.min_version = ciphersuite_info->min_minor_ver;
-            /* DTLS starts with TLS 1.1 */
-            if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-                opt.min_version < MBEDTLS_SSL_MINOR_VERSION_2 )
-                opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
-        }
-
-        /* Enable RC4 if needed and not explicitly disabled */
-        if( ciphersuite_info->cipher == MBEDTLS_CIPHER_ARC4_128 )
-        {
-            if( opt.arc4 == MBEDTLS_SSL_ARC4_DISABLED )
-            {
-                mbedtls_printf("forced RC4 ciphersuite with RC4 disabled\n");
-                ret = 2;
-                goto usage;
-            }
-
-            opt.arc4 = MBEDTLS_SSL_ARC4_ENABLED;
-        }
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        if( opt.psk_opaque != 0 || opt.psk_list_opaque != 0 )
-        {
-            /* Ensure that the chosen ciphersuite is PSK-only; we must know
-             * the ciphersuite in advance to set the correct policy for the
-             * PSK key slot. This limitation might go away in the future. */
-            if( ciphersuite_info->key_exchange != MBEDTLS_KEY_EXCHANGE_PSK ||
-                opt.min_version != MBEDTLS_SSL_MINOR_VERSION_3 )
-            {
-                mbedtls_printf( "opaque PSKs are only supported in conjunction with forcing TLS 1.2 and a PSK-only ciphersuite through the 'force_ciphersuite' option.\n" );
-                ret = 2;
-                goto usage;
-            }
-
-            /* Determine KDF algorithm the opaque PSK will be used in. */
-#if defined(MBEDTLS_SHA512_C)
-            if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
-                alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_384);
-            else
-#endif /* MBEDTLS_SHA512_C */
-                alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_256);
-        }
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    }
-
-    if( opt.version_suites != NULL )
-    {
-        const char *name[4] = { 0 };
-
-        /* Parse 4-element coma-separated list */
-        for( i = 0, p = (char *) opt.version_suites;
-             i < 4 && *p != '\0';
-             i++ )
-        {
-            name[i] = p;
-
-            /* Terminate the current string and move on to next one */
-            while( *p != ',' && *p != '\0' )
-                p++;
-            if( *p == ',' )
-                *p++ = '\0';
-        }
-
-        if( i != 4 )
-        {
-            mbedtls_printf( "too few values for version_suites\n" );
-            ret = 1;
-            goto exit;
-        }
-
-        memset( version_suites, 0, sizeof( version_suites ) );
-
-        /* Get the suites identifiers from their name */
-        for( i = 0; i < 4; i++ )
-        {
-            version_suites[i][0] = mbedtls_ssl_get_ciphersuite_id( name[i] );
-
-            if( version_suites[i][0] == 0 )
-            {
-                mbedtls_printf( "unknown ciphersuite: '%s'\n", name[i] );
-                ret = 2;
-                goto usage;
-            }
-        }
-    }
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    /*
-     * Unhexify the pre-shared key and parse the list if any given
-     */
-    if( unhexify( psk, opt.psk, &psk_len ) != 0 )
-    {
-        mbedtls_printf( "pre-shared key not valid hex\n" );
-        goto exit;
-    }
-
-    if( opt.psk_list != NULL )
-    {
-        if( ( psk_info = psk_parse( opt.psk_list ) ) == NULL )
-        {
-            mbedtls_printf( "psk_list invalid" );
-            goto exit;
-        }
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
-
-#if defined(MBEDTLS_ECP_C)
-    if( opt.curves != NULL )
-    {
-        p = (char *) opt.curves;
-        i = 0;
-
-        if( strcmp( p, "none" ) == 0 )
-        {
-            curve_list[0] = MBEDTLS_ECP_DP_NONE;
-        }
-        else if( strcmp( p, "default" ) != 0 )
-        {
-            /* Leave room for a final NULL in curve list */
-            while( i < CURVE_LIST_SIZE - 1 && *p != '\0' )
-            {
-                q = p;
-
-                /* Terminate the current string */
-                while( *p != ',' && *p != '\0' )
-                    p++;
-                if( *p == ',' )
-                    *p++ = '\0';
-
-                if( ( curve_cur = mbedtls_ecp_curve_info_from_name( q ) ) != NULL )
-                {
-                    curve_list[i++] = curve_cur->grp_id;
-                }
-                else
-                {
-                    mbedtls_printf( "unknown curve %s\n", q );
-                    mbedtls_printf( "supported curves: " );
-                    for( curve_cur = mbedtls_ecp_curve_list();
-                         curve_cur->grp_id != MBEDTLS_ECP_DP_NONE;
-                         curve_cur++ )
-                    {
-                        mbedtls_printf( "%s ", curve_cur->name );
-                    }
-                    mbedtls_printf( "\n" );
-                    goto exit;
-                }
-            }
-
-            mbedtls_printf("Number of curves: %d\n", i );
-
-            if( i == CURVE_LIST_SIZE - 1 && *p != '\0' )
-            {
-                mbedtls_printf( "curves list too long, maximum %d",
-                                CURVE_LIST_SIZE - 1  );
-                goto exit;
-            }
-
-            curve_list[i] = MBEDTLS_ECP_DP_NONE;
-        }
-    }
-#endif /* MBEDTLS_ECP_C */
-
-#if defined(MBEDTLS_SSL_ALPN)
-    if( opt.alpn_string != NULL )
-    {
-        p = (char *) opt.alpn_string;
-        i = 0;
-
-        /* Leave room for a final NULL in alpn_list */
-        while( i < ALPN_LIST_SIZE - 1 && *p != '\0' )
-        {
-            alpn_list[i++] = p;
-
-            /* Terminate the current string and move on to next one */
-            while( *p != ',' && *p != '\0' )
-                p++;
-            if( *p == ',' )
-                *p++ = '\0';
-        }
-    }
-#endif /* MBEDTLS_SSL_ALPN */
-
-    /*
-     * 0. Initialize the RNG and the session data
-     */
-    mbedtls_printf( "\n  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    mbedtls_entropy_init( &entropy );
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
-                                       &entropy, (const unsigned char *) pers,
-                                       strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned -0x%x\n",
-                        -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    /*
-     * 1.1. Load the trusted CA
-     */
-    mbedtls_printf( "  . Loading the CA root certificate ..." );
-    fflush( stdout );
-
-#if defined(MBEDTLS_FS_IO)
-    if( strlen( opt.ca_path ) )
-        if( strcmp( opt.ca_path, "none" ) == 0 )
-            ret = 0;
-        else
-            ret = mbedtls_x509_crt_parse_path( &cacert, opt.ca_path );
-    else if( strlen( opt.ca_file ) )
-        if( strcmp( opt.ca_file, "none" ) == 0 )
-            ret = 0;
-        else
-            ret = mbedtls_x509_crt_parse_file( &cacert, opt.ca_file );
-    else
-#endif
-#if defined(MBEDTLS_CERTS_C)
-        for( i = 0; mbedtls_test_cas[i] != NULL; i++ )
-        {
-            ret = mbedtls_x509_crt_parse( &cacert,
-                                  (const unsigned char *) mbedtls_test_cas[i],
-                                  mbedtls_test_cas_len[i] );
-            if( ret != 0 )
-                break;
-        }
-#else
-    {
-        ret = 1;
-        mbedtls_printf("MBEDTLS_CERTS_C not defined.");
-    }
-#endif
-    if( ret < 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned -0x%x\n\n", -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok (%d skipped)\n", ret );
-
-    /*
-     * 1.2. Load own certificate and private key
-     */
-    mbedtls_printf( "  . Loading the server cert. and key..." );
-    fflush( stdout );
-
-#if defined(MBEDTLS_FS_IO)
-    if( strlen( opt.crt_file ) && strcmp( opt.crt_file, "none" ) != 0 )
-    {
-        key_cert_init++;
-        if( ( ret = mbedtls_x509_crt_parse_file( &srvcert, opt.crt_file ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse_file returned -0x%x\n\n",
-                    -ret );
-            goto exit;
-        }
-    }
-    if( strlen( opt.key_file ) && strcmp( opt.key_file, "none" ) != 0 )
-    {
-        key_cert_init++;
-        if( ( ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file, "" ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_pk_parse_keyfile returned -0x%x\n\n", -ret );
-            goto exit;
-        }
-    }
-    if( key_cert_init == 1 )
-    {
-        mbedtls_printf( " failed\n  !  crt_file without key_file or vice-versa\n\n" );
-        goto exit;
-    }
-
-    if( strlen( opt.crt_file2 ) && strcmp( opt.crt_file2, "none" ) != 0 )
-    {
-        key_cert_init2++;
-        if( ( ret = mbedtls_x509_crt_parse_file( &srvcert2, opt.crt_file2 ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse_file(2) returned -0x%x\n\n",
-                    -ret );
-            goto exit;
-        }
-    }
-    if( strlen( opt.key_file2 ) && strcmp( opt.key_file2, "none" ) != 0 )
-    {
-        key_cert_init2++;
-        if( ( ret = mbedtls_pk_parse_keyfile( &pkey2, opt.key_file2, "" ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_pk_parse_keyfile(2) returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-    }
-    if( key_cert_init2 == 1 )
-    {
-        mbedtls_printf( " failed\n  !  crt_file2 without key_file2 or vice-versa\n\n" );
-        goto exit;
-    }
-#endif
-    if( key_cert_init == 0 &&
-        strcmp( opt.crt_file, "none" ) != 0 &&
-        strcmp( opt.key_file, "none" ) != 0 &&
-        key_cert_init2 == 0 &&
-        strcmp( opt.crt_file2, "none" ) != 0 &&
-        strcmp( opt.key_file2, "none" ) != 0 )
-    {
-#if !defined(MBEDTLS_CERTS_C)
-        mbedtls_printf( "Not certificated or key provided, and \nMBEDTLS_CERTS_C not defined!\n" );
-        goto exit;
-#else
-#if defined(MBEDTLS_RSA_C)
-        if( ( ret = mbedtls_x509_crt_parse( &srvcert,
-                                    (const unsigned char *) mbedtls_test_srv_crt_rsa,
-                                    mbedtls_test_srv_crt_rsa_len ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-        if( ( ret = mbedtls_pk_parse_key( &pkey,
-                                  (const unsigned char *) mbedtls_test_srv_key_rsa,
-                                  mbedtls_test_srv_key_rsa_len, NULL, 0 ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_pk_parse_key returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-        key_cert_init = 2;
-#endif /* MBEDTLS_RSA_C */
-#if defined(MBEDTLS_ECDSA_C)
-        if( ( ret = mbedtls_x509_crt_parse( &srvcert2,
-                                    (const unsigned char *) mbedtls_test_srv_crt_ec,
-                                    mbedtls_test_srv_crt_ec_len ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  x509_crt_parse2 returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-        if( ( ret = mbedtls_pk_parse_key( &pkey2,
-                                  (const unsigned char *) mbedtls_test_srv_key_ec,
-                                  mbedtls_test_srv_key_ec_len, NULL, 0 ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  pk_parse_key2 returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-        key_cert_init2 = 2;
-#endif /* MBEDTLS_ECDSA_C */
-#endif /* MBEDTLS_CERTS_C */
-    }
-
-    mbedtls_printf( " ok\n" );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO)
-    if( opt.dhm_file != NULL )
-    {
-        mbedtls_printf( "  . Loading DHM parameters..." );
-        fflush( stdout );
-
-        if( ( ret = mbedtls_dhm_parse_dhmfile( &dhm, opt.dhm_file ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_dhm_parse_dhmfile returned -0x%04X\n\n",
-                     -ret );
-            goto exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-    }
-#endif
-
-#if defined(SNI_OPTION)
-    if( opt.sni != NULL )
-    {
-        mbedtls_printf( "  . Setting up SNI information..." );
-        fflush( stdout );
-
-        if( ( sni_info = sni_parse( opt.sni ) ) == NULL )
-        {
-            mbedtls_printf( " failed\n" );
-            goto exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-    }
-#endif /* SNI_OPTION */
-
-    /*
-     * 2. Setup the listening TCP socket
-     */
-    mbedtls_printf( "  . Bind on %s://%s:%s/ ...",
-            opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ? "tcp" : "udp",
-            opt.server_addr ? opt.server_addr : "*",
-            opt.server_port );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_bind( &listen_fd, opt.server_addr, opt.server_port,
-                          opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ?
-                          MBEDTLS_NET_PROTO_TCP : MBEDTLS_NET_PROTO_UDP ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_bind returned -0x%x\n\n", -ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 3. Setup stuff
-     */
-    mbedtls_printf( "  . Setting up the SSL/TLS structure..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ssl_config_defaults( &conf,
-                    MBEDTLS_SSL_IS_SERVER,
-                    opt.transport,
-                    MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_config_defaults returned -0x%x\n\n", -ret );
-        goto exit;
-    }
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    /* The default algorithms profile disables SHA-1, but our tests still
-       rely on it heavily. Hence we allow it here. A real-world server
-       should use the default profile unless there is a good reason not to. */
-    if( opt.allow_sha1 > 0 )
-    {
-        crt_profile_for_test.allowed_mds |= MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA1 );
-        mbedtls_ssl_conf_cert_profile( &conf, &crt_profile_for_test );
-        mbedtls_ssl_conf_sig_hashes( &conf, ssl_sig_hashes_for_test );
-    }
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    if( opt.auth_mode != DFL_AUTH_MODE )
-        mbedtls_ssl_conf_authmode( &conf, opt.auth_mode );
-
-    if( opt.cert_req_ca_list != DFL_CERT_REQ_CA_LIST )
-        mbedtls_ssl_conf_cert_req_ca_list( &conf, opt.cert_req_ca_list );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( opt.hs_to_min != DFL_HS_TO_MIN || opt.hs_to_max != DFL_HS_TO_MAX )
-        mbedtls_ssl_conf_handshake_timeout( &conf, opt.hs_to_min, opt.hs_to_max );
-
-    if( opt.dgram_packing != DFL_DGRAM_PACKING )
-        mbedtls_ssl_set_datagram_packing( &ssl, opt.dgram_packing );
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    if( ( ret = mbedtls_ssl_conf_max_frag_len( &conf, opt.mfl_code ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_max_frag_len returned %d\n\n", ret );
-        goto exit;
-    };
-#endif
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    if( opt.trunc_hmac != DFL_TRUNC_HMAC )
-        mbedtls_ssl_conf_truncated_hmac( &conf, opt.trunc_hmac );
-#endif
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    if( opt.extended_ms != DFL_EXTENDED_MS )
-        mbedtls_ssl_conf_extended_master_secret( &conf, opt.extended_ms );
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    if( opt.etm != DFL_ETM )
-        mbedtls_ssl_conf_encrypt_then_mac( &conf, opt.etm );
-#endif
-
-#if defined(MBEDTLS_SSL_ALPN)
-    if( opt.alpn_string != NULL )
-        if( ( ret = mbedtls_ssl_conf_alpn_protocols( &conf, alpn_list ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_alpn_protocols returned %d\n\n", ret );
-            goto exit;
-        }
-#endif
-
-    mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-    mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-    if( opt.cache_max != -1 )
-        mbedtls_ssl_cache_set_max_entries( &cache, opt.cache_max );
-
-    if( opt.cache_timeout != -1 )
-        mbedtls_ssl_cache_set_timeout( &cache, opt.cache_timeout );
-
-    mbedtls_ssl_conf_session_cache( &conf, &cache,
-                                   mbedtls_ssl_cache_get,
-                                   mbedtls_ssl_cache_set );
-#endif
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    if( opt.tickets == MBEDTLS_SSL_SESSION_TICKETS_ENABLED )
-    {
-        if( ( ret = mbedtls_ssl_ticket_setup( &ticket_ctx,
-                        mbedtls_ctr_drbg_random, &ctr_drbg,
-                        MBEDTLS_CIPHER_AES_256_GCM,
-                        opt.ticket_timeout ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_ticket_setup returned %d\n\n", ret );
-            goto exit;
-        }
-
-        mbedtls_ssl_conf_session_tickets_cb( &conf,
-                mbedtls_ssl_ticket_write,
-                mbedtls_ssl_ticket_parse,
-                &ticket_ctx );
-    }
-#endif
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-#if defined(MBEDTLS_SSL_COOKIE_C)
-        if( opt.cookies > 0 )
-        {
-            if( ( ret = mbedtls_ssl_cookie_setup( &cookie_ctx,
-                                          mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
-            {
-                mbedtls_printf( " failed\n  ! mbedtls_ssl_cookie_setup returned %d\n\n", ret );
-                goto exit;
-            }
-
-            mbedtls_ssl_conf_dtls_cookies( &conf, mbedtls_ssl_cookie_write, mbedtls_ssl_cookie_check,
-                                       &cookie_ctx );
-        }
-        else
-#endif /* MBEDTLS_SSL_COOKIE_C */
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-        if( opt.cookies == 0 )
-        {
-            mbedtls_ssl_conf_dtls_cookies( &conf, NULL, NULL, NULL );
-        }
-        else
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
-        {
-            ; /* Nothing to do */
-        }
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-        if( opt.anti_replay != DFL_ANTI_REPLAY )
-            mbedtls_ssl_conf_dtls_anti_replay( &conf, opt.anti_replay );
-#endif
-
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-        if( opt.badmac_limit != DFL_BADMAC_LIMIT )
-            mbedtls_ssl_conf_dtls_badmac_limit( &conf, opt.badmac_limit );
-#endif
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-    if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
-        mbedtls_ssl_conf_ciphersuites( &conf, opt.force_ciphersuite );
-
-#if defined(MBEDTLS_ARC4_C)
-    if( opt.arc4 != DFL_ARC4 )
-        mbedtls_ssl_conf_arc4_support( &conf, opt.arc4 );
-#endif
-
-    if( opt.version_suites != NULL )
-    {
-        mbedtls_ssl_conf_ciphersuites_for_version( &conf, version_suites[0],
-                                          MBEDTLS_SSL_MAJOR_VERSION_3,
-                                          MBEDTLS_SSL_MINOR_VERSION_0 );
-        mbedtls_ssl_conf_ciphersuites_for_version( &conf, version_suites[1],
-                                          MBEDTLS_SSL_MAJOR_VERSION_3,
-                                          MBEDTLS_SSL_MINOR_VERSION_1 );
-        mbedtls_ssl_conf_ciphersuites_for_version( &conf, version_suites[2],
-                                          MBEDTLS_SSL_MAJOR_VERSION_3,
-                                          MBEDTLS_SSL_MINOR_VERSION_2 );
-        mbedtls_ssl_conf_ciphersuites_for_version( &conf, version_suites[3],
-                                          MBEDTLS_SSL_MAJOR_VERSION_3,
-                                          MBEDTLS_SSL_MINOR_VERSION_3 );
-    }
-
-    if( opt.allow_legacy != DFL_ALLOW_LEGACY )
-        mbedtls_ssl_conf_legacy_renegotiation( &conf, opt.allow_legacy );
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    mbedtls_ssl_conf_renegotiation( &conf, opt.renegotiation );
-
-    if( opt.renego_delay != DFL_RENEGO_DELAY )
-        mbedtls_ssl_conf_renegotiation_enforced( &conf, opt.renego_delay );
-
-    if( opt.renego_period != DFL_RENEGO_PERIOD )
-    {
-        PUT_UINT64_BE( renego_period, opt.renego_period, 0 );
-        mbedtls_ssl_conf_renegotiation_period( &conf, renego_period );
-    }
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    if( strcmp( opt.ca_path, "none" ) != 0 &&
-        strcmp( opt.ca_file, "none" ) != 0 )
-    {
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-        if( opt.ca_callback != 0 )
-            mbedtls_ssl_conf_ca_cb( &conf, ca_callback, &cacert);
-        else
-#endif
-            mbedtls_ssl_conf_ca_chain( &conf, &cacert, NULL );
-    }
-    if( key_cert_init )
-    {
-        mbedtls_pk_context *pk = &pkey;
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        if( opt.async_private_delay1 >= 0 )
-        {
-            ret = ssl_async_set_key( &ssl_async_keys, &srvcert, pk, 0,
-                                     opt.async_private_delay1 );
-            if( ret < 0 )
-            {
-                mbedtls_printf( "  Test error: ssl_async_set_key failed (%d)\n",
-                                ret );
-                goto exit;
-            }
-            pk = NULL;
-        }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-        if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert, pk ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
-            goto exit;
-        }
-    }
-    if( key_cert_init2 )
-    {
-        mbedtls_pk_context *pk = &pkey2;
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        if( opt.async_private_delay2 >= 0 )
-        {
-            ret = ssl_async_set_key( &ssl_async_keys, &srvcert2, pk, 0,
-                                     opt.async_private_delay2 );
-            if( ret < 0 )
-            {
-                mbedtls_printf( "  Test error: ssl_async_set_key failed (%d)\n",
-                                ret );
-                goto exit;
-            }
-            pk = NULL;
-        }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-        if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert2, pk ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
-            goto exit;
-        }
-    }
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    if( opt.async_operations[0] != '-' )
-    {
-        mbedtls_ssl_async_sign_t *sign = NULL;
-        mbedtls_ssl_async_decrypt_t *decrypt = NULL;
-        const char *r;
-        for( r = opt.async_operations; *r; r++ )
-        {
-            switch( *r )
-            {
-            case 'd':
-                decrypt = ssl_async_decrypt;
-                break;
-            case 's':
-                sign = ssl_async_sign;
-                break;
-            }
-        }
-        ssl_async_keys.inject_error = ( opt.async_private_error < 0 ?
-                                        - opt.async_private_error :
-                                        opt.async_private_error );
-        ssl_async_keys.f_rng = mbedtls_ctr_drbg_random;
-        ssl_async_keys.p_rng = &ctr_drbg;
-        mbedtls_ssl_conf_async_private_cb( &conf,
-                                           sign,
-                                           decrypt,
-                                           ssl_async_resume,
-                                           ssl_async_cancel,
-                                           &ssl_async_keys );
-    }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(SNI_OPTION)
-    if( opt.sni != NULL )
-    {
-        mbedtls_ssl_conf_sni( &conf, sni_callback, sni_info );
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        if( opt.async_private_delay2 >= 0 )
-        {
-            sni_entry *cur;
-            for( cur = sni_info; cur != NULL; cur = cur->next )
-            {
-                ret = ssl_async_set_key( &ssl_async_keys,
-                                         cur->cert, cur->key, 1,
-                                         opt.async_private_delay2 );
-                if( ret < 0 )
-                {
-                    mbedtls_printf( "  Test error: ssl_async_set_key failed (%d)\n",
-                                    ret );
-                    goto exit;
-                }
-                cur->key = NULL;
-            }
-        }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-    }
-#endif
-
-#if defined(MBEDTLS_ECP_C)
-    if( opt.curves != NULL &&
-        strcmp( opt.curves, "default" ) != 0 )
-    {
-        mbedtls_ssl_conf_curves( &conf, curve_list );
-    }
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-
-    if( strlen( opt.psk ) != 0 && strlen( opt.psk_identity ) != 0 )
-    {
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        if( opt.psk_opaque != 0 )
-        {
-            status = psa_allocate_key( &psk_slot );
-            if( status != PSA_SUCCESS )
-            {
-                fprintf( stderr, "ALLOC FAIL\n" );
-                ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
-                goto exit;
-            }
-
-            /* The algorithm has already been determined earlier. */
-            status = psa_setup_psk_key_slot( psk_slot, alg, psk, psk_len );
-            if( status != PSA_SUCCESS )
-            {
-                fprintf( stderr, "SETUP FAIL\n" );
-                ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
-                goto exit;
-            }
-            if( ( ret = mbedtls_ssl_conf_psk_opaque( &conf, psk_slot,
-                             (const unsigned char *) opt.psk_identity,
-                             strlen( opt.psk_identity ) ) ) != 0 )
-            {
-                mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_psk_opaque returned %d\n\n",
-                                ret );
-                goto exit;
-            }
-        }
-        else
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-        if( ( ret = mbedtls_ssl_conf_psk( &conf, psk, psk_len,
-                                     (const unsigned char *) opt.psk_identity,
-                                     strlen( opt.psk_identity ) ) ) != 0 )
-        {
-            mbedtls_printf( "  failed\n  mbedtls_ssl_conf_psk returned -0x%04X\n\n", - ret );
-            goto exit;
-        }
-    }
-
-    if( opt.psk_list != NULL )
-    {
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-        if( opt.psk_list_opaque != 0 )
-        {
-            psk_entry *cur_psk;
-            for( cur_psk = psk_info; cur_psk != NULL; cur_psk = cur_psk->next )
-            {
-                status = psa_allocate_key( &cur_psk->slot );
-                if( status != PSA_SUCCESS )
-                {
-                    ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
-                    goto exit;
-                }
-
-                status = psa_setup_psk_key_slot( cur_psk->slot, alg,
-                                                 cur_psk->key,
-                                                 cur_psk->key_len );
-                if( status != PSA_SUCCESS )
-                {
-                    ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
-                    goto exit;
-                }
-            }
-        }
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
-        mbedtls_ssl_conf_psk_cb( &conf, psk_callback, psk_info );
-    }
-#endif
-
-#if defined(MBEDTLS_DHM_C)
-    /*
-     * Use different group than default DHM group
-     */
-#if defined(MBEDTLS_FS_IO)
-    if( opt.dhm_file != NULL )
-        ret = mbedtls_ssl_conf_dh_param_ctx( &conf, &dhm );
-#endif
-    if( ret != 0 )
-    {
-        mbedtls_printf( "  failed\n  mbedtls_ssl_conf_dh_param returned -0x%04X\n\n", - ret );
-        goto exit;
-    }
-#endif
-
-    if( opt.min_version != DFL_MIN_VERSION )
-        mbedtls_ssl_conf_min_version( &conf, MBEDTLS_SSL_MAJOR_VERSION_3, opt.min_version );
-
-    if( opt.max_version != DFL_MIN_VERSION )
-        mbedtls_ssl_conf_max_version( &conf, MBEDTLS_SSL_MAJOR_VERSION_3, opt.max_version );
-
-    if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_setup returned -0x%x\n\n", -ret );
-        goto exit;
-    }
-
-    if( opt.nbio == 2 )
-        mbedtls_ssl_set_bio( &ssl, &client_fd, my_send, my_recv, NULL );
-    else
-        mbedtls_ssl_set_bio( &ssl, &client_fd, mbedtls_net_send, mbedtls_net_recv,
-                             opt.nbio == 0 ? mbedtls_net_recv_timeout : NULL );
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( opt.dtls_mtu != DFL_DTLS_MTU )
-        mbedtls_ssl_set_mtu( &ssl, opt.dtls_mtu );
-#endif
-
-#if defined(MBEDTLS_TIMING_C)
-    mbedtls_ssl_set_timer_cb( &ssl, &timer, mbedtls_timing_set_delay,
-                                            mbedtls_timing_get_delay );
-#endif
-
-    mbedtls_printf( " ok\n" );
-
-reset:
-#if !defined(_WIN32)
-    if( received_sigterm )
-    {
-        mbedtls_printf( " interrupted by SIGTERM (not in net_accept())\n" );
-        if( ret == MBEDTLS_ERR_NET_INVALID_CONTEXT )
-            ret = 0;
-
-        goto exit;
-    }
-#endif
-
-    if( ret == MBEDTLS_ERR_SSL_CLIENT_RECONNECT )
-    {
-        mbedtls_printf( "  ! Client initiated reconnection from same port\n" );
-        goto handshake;
-    }
-
-#ifdef MBEDTLS_ERROR_C
-    if( ret != 0 )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        mbedtls_printf("Last error was: %d - %s\n\n", ret, error_buf );
-    }
-#endif
-
-    mbedtls_net_free( &client_fd );
-
-    mbedtls_ssl_session_reset( &ssl );
-
-    /*
-     * 3. Wait until a client connects
-     */
-    mbedtls_printf( "  . Waiting for a remote connection ..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_accept( &listen_fd, &client_fd,
-                    client_ip, sizeof( client_ip ), &cliip_len ) ) != 0 )
-    {
-#if !defined(_WIN32)
-        if( received_sigterm )
-        {
-            mbedtls_printf( " interrupted by SIGTERM (in net_accept())\n" );
-            if( ret == MBEDTLS_ERR_NET_ACCEPT_FAILED )
-                ret = 0;
-
-            goto exit;
-        }
-#endif
-
-        mbedtls_printf( " failed\n  ! mbedtls_net_accept returned -0x%x\n\n", -ret );
-        goto exit;
-    }
-
-    if( opt.nbio > 0 )
-        ret = mbedtls_net_set_nonblock( &client_fd );
-    else
-        ret = mbedtls_net_set_block( &client_fd );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! net_set_(non)block() returned -0x%x\n\n", -ret );
-        goto exit;
-    }
-
-    mbedtls_ssl_conf_read_timeout( &conf, opt.read_timeout );
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-    if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        if( ( ret = mbedtls_ssl_set_client_transport_id( &ssl,
-                        client_ip, cliip_len ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_set_client_transport_id() returned -0x%x\n\n",
-                            -ret );
-            goto exit;
-        }
-    }
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( opt.ecjpake_pw != DFL_ECJPAKE_PW )
-    {
-        if( ( ret = mbedtls_ssl_set_hs_ecjpake_password( &ssl,
-                        (const unsigned char *) opt.ecjpake_pw,
-                                        strlen( opt.ecjpake_pw ) ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hs_ecjpake_password returned %d\n\n", ret );
-            goto exit;
-        }
-    }
-#endif
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 4. Handshake
-     */
-handshake:
-    mbedtls_printf( "  . Performing the SSL/TLS handshake..." );
-    fflush( stdout );
-
-    while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
-    {
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        if( ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS &&
-            ssl_async_keys.inject_error == SSL_ASYNC_INJECT_ERROR_CANCEL )
-        {
-            mbedtls_printf( " cancelling on injected error\n" );
-            break;
-        }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-        if( ! mbedtls_status_is_ssl_in_progress( ret ) )
-            break;
-
-        /* For event-driven IO, wait for socket to become available */
-        if( opt.event == 1 /* level triggered IO */ )
-        {
-#if defined(MBEDTLS_TIMING_C)
-            ret = idle( &client_fd, &timer, ret );
-#else
-            ret = idle( &client_fd, ret );
-#endif
-            if( ret != 0 )
-                goto reset;
-        }
-    }
-
-    if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED )
-    {
-        mbedtls_printf( " hello verification requested\n" );
-        ret = 0;
-        goto reset;
-    }
-    else if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ssl_handshake returned -0x%x\n\n", -ret );
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-        if( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED )
-        {
-            char vrfy_buf[512];
-            flags = mbedtls_ssl_get_verify_result( &ssl );
-
-            mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ), "  ! ", flags );
-
-            mbedtls_printf( "%s\n", vrfy_buf );
-        }
-#endif
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        if( opt.async_private_error < 0 )
-            /* Injected error only the first time round, to test reset */
-            ssl_async_keys.inject_error = SSL_ASYNC_INJECT_ERROR_NONE;
-#endif
-        goto reset;
-    }
-    else /* ret == 0 */
-    {
-        mbedtls_printf( " ok\n    [ Protocol is %s ]\n    [ Ciphersuite is %s ]\n",
-                mbedtls_ssl_get_version( &ssl ), mbedtls_ssl_get_ciphersuite( &ssl ) );
-    }
-
-    if( ( ret = mbedtls_ssl_get_record_expansion( &ssl ) ) >= 0 )
-        mbedtls_printf( "    [ Record expansion is %d ]\n", ret );
-    else
-        mbedtls_printf( "    [ Record expansion is unknown (compression) ]\n" );
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    mbedtls_printf( "    [ Maximum fragment length is %u ]\n",
-                    (unsigned int) mbedtls_ssl_get_max_frag_len( &ssl ) );
-#endif
-
-#if defined(MBEDTLS_SSL_ALPN)
-    if( opt.alpn_string != NULL )
-    {
-        const char *alp = mbedtls_ssl_get_alpn_protocol( &ssl );
-        mbedtls_printf( "    [ Application Layer Protocol is %s ]\n",
-                alp ? alp : "(none)" );
-    }
-#endif
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    /*
-     * 5. Verify the client certificate
-     */
-    mbedtls_printf( "  . Verifying peer X.509 certificate..." );
-
-    if( ( flags = mbedtls_ssl_get_verify_result( &ssl ) ) != 0 )
-    {
-        char vrfy_buf[512];
-
-        mbedtls_printf( " failed\n" );
-
-        mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ), "  ! ", flags );
-
-        mbedtls_printf( "%s\n", vrfy_buf );
-    }
-    else
-        mbedtls_printf( " ok\n" );
-
-    if( mbedtls_ssl_get_peer_cert( &ssl ) != NULL )
-    {
-        char crt_buf[512];
-
-        mbedtls_printf( "  . Peer certificate information    ...\n" );
-        mbedtls_x509_crt_info( crt_buf, sizeof( crt_buf ), "      ",
-                       mbedtls_ssl_get_peer_cert( &ssl ) );
-        mbedtls_printf( "%s\n", crt_buf );
-    }
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    if( opt.exchanges == 0 )
-        goto close_notify;
-
-    exchanges_left = opt.exchanges;
-data_exchange:
-    /*
-     * 6. Read the HTTP Request
-     */
-    mbedtls_printf( "  < Read from client:" );
-    fflush( stdout );
-
-    /*
-     * TLS and DTLS need different reading styles (stream vs datagram)
-     */
-    if( opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM )
-    {
-        do
-        {
-            int terminated = 0;
-            len = opt.buffer_size - 1;
-            memset( buf, 0, opt.buffer_size );
-            ret = mbedtls_ssl_read( &ssl, buf, len );
-
-            if( mbedtls_status_is_ssl_in_progress( ret ) )
-            {
-                if( opt.event == 1 /* level triggered IO */ )
-                {
-#if defined(MBEDTLS_TIMING_C)
-                    idle( &client_fd, &timer, ret );
-#else
-                    idle( &client_fd, ret );
-#endif
-                }
-
-                continue;
-            }
-
-            if( ret <= 0 )
-            {
-                switch( ret )
-                {
-                    case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
-                        mbedtls_printf( " connection was closed gracefully\n" );
-                        goto close_notify;
-
-                    case 0:
-                    case MBEDTLS_ERR_NET_CONN_RESET:
-                        mbedtls_printf( " connection was reset by peer\n" );
-                        ret = MBEDTLS_ERR_NET_CONN_RESET;
-                        goto reset;
-
-                    default:
-                        mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n", -ret );
-                        goto reset;
-                }
-            }
-
-            if( mbedtls_ssl_get_bytes_avail( &ssl ) == 0 )
-            {
-                len = ret;
-                buf[len] = '\0';
-                mbedtls_printf( " %d bytes read\n\n%s\n", len, (char *) buf );
-
-                /* End of message should be detected according to the syntax of the
-                 * application protocol (eg HTTP), just use a dummy test here. */
-                if( buf[len - 1] == '\n' )
-                    terminated = 1;
-            }
-            else
-            {
-                int extra_len, ori_len;
-                unsigned char *larger_buf;
-
-                ori_len = ret;
-                extra_len = (int) mbedtls_ssl_get_bytes_avail( &ssl );
-
-                larger_buf = mbedtls_calloc( 1, ori_len + extra_len + 1 );
-                if( larger_buf == NULL )
-                {
-                    mbedtls_printf( "  ! memory allocation failed\n" );
-                    ret = 1;
-                    goto reset;
-                }
-
-                memset( larger_buf, 0, ori_len + extra_len );
-                memcpy( larger_buf, buf, ori_len );
-
-                /* This read should never fail and get the whole cached data */
-                ret = mbedtls_ssl_read( &ssl, larger_buf + ori_len, extra_len );
-                if( ret != extra_len ||
-                    mbedtls_ssl_get_bytes_avail( &ssl ) != 0 )
-                {
-                    mbedtls_printf( "  ! mbedtls_ssl_read failed on cached data\n" );
-                    ret = 1;
-                    goto reset;
-                }
-
-                larger_buf[ori_len + extra_len] = '\0';
-                mbedtls_printf( " %u bytes read (%u + %u)\n\n%s\n",
-                        ori_len + extra_len, ori_len, extra_len,
-                        (char *) larger_buf );
-
-                /* End of message should be detected according to the syntax of the
-                 * application protocol (eg HTTP), just use a dummy test here. */
-                if( larger_buf[ori_len + extra_len - 1] == '\n' )
-                    terminated = 1;
-
-                mbedtls_free( larger_buf );
-            }
-
-            if( terminated )
-            {
-                ret = 0;
-                break;
-            }
-        }
-        while( 1 );
-    }
-    else /* Not stream, so datagram */
-    {
-        len = opt.buffer_size - 1;
-        memset( buf, 0, opt.buffer_size );
-
-        do
-        {
-            /* Without the call to `mbedtls_ssl_check_pending`, it might
-             * happen that the client sends application data in the same
-             * datagram as the Finished message concluding the handshake.
-             * In this case, the application data would be ready to be
-             * processed while the underlying transport wouldn't signal
-             * any further incoming data.
-             *
-             * See the test 'Event-driven I/O: session-id resume, UDP packing'
-             * in tests/ssl-opt.sh.
-             */
-
-            /* For event-driven IO, wait for socket to become available */
-            if( mbedtls_ssl_check_pending( &ssl ) == 0 &&
-                opt.event == 1 /* level triggered IO */ )
-            {
-#if defined(MBEDTLS_TIMING_C)
-                idle( &client_fd, &timer, MBEDTLS_ERR_SSL_WANT_READ );
-#else
-                idle( &client_fd, MBEDTLS_ERR_SSL_WANT_READ );
-#endif
-            }
-
-            ret = mbedtls_ssl_read( &ssl, buf, len );
-
-            /* Note that even if `mbedtls_ssl_check_pending` returns true,
-             * it can happen that the subsequent call to `mbedtls_ssl_read`
-             * returns `MBEDTLS_ERR_SSL_WANT_READ`, because the pending messages
-             * might be discarded (e.g. because they are retransmissions). */
-        }
-        while( mbedtls_status_is_ssl_in_progress( ret ) );
-
-        if( ret <= 0 )
-        {
-            switch( ret )
-            {
-                case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
-                    mbedtls_printf( " connection was closed gracefully\n" );
-                    ret = 0;
-                    goto close_notify;
-
-                default:
-                    mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n", -ret );
-                    goto reset;
-            }
-        }
-
-        len = ret;
-        buf[len] = '\0';
-        mbedtls_printf( " %d bytes read\n\n%s", len, (char *) buf );
-        ret = 0;
-    }
-
-    /*
-     * 7a. Request renegotiation while client is waiting for input from us.
-     * (only on the first exchange, to be able to test retransmission)
-     */
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( opt.renegotiate && exchanges_left == opt.exchanges )
-    {
-        mbedtls_printf( "  . Requestion renegotiation..." );
-        fflush( stdout );
-
-        while( ( ret = mbedtls_ssl_renegotiate( &ssl ) ) != 0 )
-        {
-            if( ! mbedtls_status_is_ssl_in_progress( ret ) )
-            {
-                mbedtls_printf( " failed\n  ! mbedtls_ssl_renegotiate returned %d\n\n", ret );
-                goto reset;
-            }
-
-            /* For event-driven IO, wait for socket to become available */
-            if( opt.event == 1 /* level triggered IO */ )
-            {
-#if defined(MBEDTLS_TIMING_C)
-                idle( &client_fd, &timer, ret );
-#else
-                idle( &client_fd, ret );
-#endif
-            }
-        }
-
-        mbedtls_printf( " ok\n" );
-    }
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-    /*
-     * 7. Write the 200 Response
-     */
-    mbedtls_printf( "  > Write to client:" );
-    fflush( stdout );
-
-    len = sprintf( (char *) buf, HTTP_RESPONSE,
-                   mbedtls_ssl_get_ciphersuite( &ssl ) );
-
-    /* Add padding to the response to reach opt.response_size in length */
-    if( opt.response_size != DFL_RESPONSE_SIZE &&
-        len < opt.response_size )
-    {
-        memset( buf + len, 'B', opt.response_size - len );
-        len += opt.response_size - len;
-    }
-
-    /* Truncate if response size is smaller than the "natural" size */
-    if( opt.response_size != DFL_RESPONSE_SIZE &&
-        len > opt.response_size )
-    {
-        len = opt.response_size;
-
-        /* Still end with \r\n unless that's really not possible */
-        if( len >= 2 ) buf[len - 2] = '\r';
-        if( len >= 1 ) buf[len - 1] = '\n';
-    }
-
-    if( opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM )
-    {
-        for( written = 0, frags = 0; written < len; written += ret, frags++ )
-        {
-            while( ( ret = mbedtls_ssl_write( &ssl, buf + written, len - written ) )
-                           <= 0 )
-            {
-                if( ret == MBEDTLS_ERR_NET_CONN_RESET )
-                {
-                    mbedtls_printf( " failed\n  ! peer closed the connection\n\n" );
-                    goto reset;
-                }
-
-                if( ! mbedtls_status_is_ssl_in_progress( ret ) )
-                {
-                    mbedtls_printf( " failed\n  ! mbedtls_ssl_write returned %d\n\n", ret );
-                    goto reset;
-                }
-
-                /* For event-driven IO, wait for socket to become available */
-                if( opt.event == 1 /* level triggered IO */ )
-                {
-#if defined(MBEDTLS_TIMING_C)
-                    idle( &client_fd, &timer, ret );
-#else
-                    idle( &client_fd, ret );
-#endif
-                }
-            }
-        }
-    }
-    else /* Not stream, so datagram */
-    {
-        while( 1 )
-        {
-            ret = mbedtls_ssl_write( &ssl, buf, len );
-
-            if( ! mbedtls_status_is_ssl_in_progress( ret ) )
-                break;
-
-            /* For event-driven IO, wait for socket to become available */
-            if( opt.event == 1 /* level triggered IO */ )
-            {
-#if defined(MBEDTLS_TIMING_C)
-                idle( &client_fd, &timer, ret );
-#else
-                idle( &client_fd, ret );
-#endif
-            }
-        }
-
-        if( ret < 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_write returned %d\n\n", ret );
-            goto reset;
-        }
-
-        frags = 1;
-        written = ret;
-    }
-
-    buf[written] = '\0';
-    mbedtls_printf( " %d bytes written in %d fragments\n\n%s\n", written, frags, (char *) buf );
-    ret = 0;
-
-    /*
-     * 7b. Continue doing data exchanges?
-     */
-    if( --exchanges_left > 0 )
-        goto data_exchange;
-
-    /*
-     * 8. Done, cleanly close the connection
-     */
-close_notify:
-    mbedtls_printf( "  . Closing the connection..." );
-
-    /* No error checking, the connection might be closed already */
-    do ret = mbedtls_ssl_close_notify( &ssl );
-    while( ret == MBEDTLS_ERR_SSL_WANT_WRITE );
-    ret = 0;
-
-    mbedtls_printf( " done\n" );
-
-    goto reset;
-
-    /*
-     * Cleanup and exit
-     */
-exit:
-#ifdef MBEDTLS_ERROR_C
-    if( ret != 0 )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        mbedtls_printf("Last error was: -0x%X - %s\n\n", -ret, error_buf );
-    }
-#endif
-
-    mbedtls_printf( "  . Cleaning up..." );
-    fflush( stdout );
-
-    mbedtls_net_free( &client_fd );
-    mbedtls_net_free( &listen_fd );
-
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO)
-    mbedtls_dhm_free( &dhm );
-#endif
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    mbedtls_x509_crt_free( &cacert );
-    mbedtls_x509_crt_free( &srvcert );
-    mbedtls_pk_free( &pkey );
-    mbedtls_x509_crt_free( &srvcert2 );
-    mbedtls_pk_free( &pkey2 );
-#endif
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    for( i = 0; (size_t) i < ssl_async_keys.slots_used; i++ )
-    {
-        if( ssl_async_keys.slots[i].pk_owned )
-        {
-            mbedtls_pk_free( ssl_async_keys.slots[i].pk );
-            mbedtls_free( ssl_async_keys.slots[i].pk );
-            ssl_async_keys.slots[i].pk = NULL;
-        }
-    }
-#endif
-#if defined(SNI_OPTION)
-    sni_free( sni_info );
-#endif
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
-    if( ( ret = psk_free( psk_info ) ) != 0 )
-        mbedtls_printf( "Failed to list of opaque PSKs - error was %d\n", ret );
-#endif
-#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO)
-    mbedtls_dhm_free( &dhm );
-#endif
-
-#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) && \
-    defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( opt.psk_opaque != 0 )
-    {
-        /* This is ok even if the slot hasn't been
-         * initialized (we might have jumed here
-         * immediately because of bad cmd line params,
-         * for example). */
-        status = psa_destroy_key( psk_slot );
-        if( status != PSA_SUCCESS )
-        {
-            mbedtls_printf( "Failed to destroy key slot %u - error was %d",
-                            (unsigned) psk_slot, (int) status );
-        }
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED &&
-          MBEDTLS_USE_PSA_CRYPTO */
-
-    mbedtls_ssl_free( &ssl );
-    mbedtls_ssl_config_free( &conf );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(MBEDTLS_SSL_CACHE_C)
-    mbedtls_ssl_cache_free( &cache );
-#endif
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    mbedtls_ssl_ticket_free( &ticket_ctx );
-#endif
-#if defined(MBEDTLS_SSL_COOKIE_C)
-    mbedtls_ssl_cookie_free( &cookie_ctx );
-#endif
-
-    mbedtls_free( buf );
-
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
-#if defined(MBEDTLS_MEMORY_DEBUG)
-    mbedtls_memory_buffer_alloc_status();
-#endif
-    mbedtls_memory_buffer_alloc_free();
-#endif
-
-    mbedtls_printf( " done.\n" );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    // Shell can not handle large exit numbers -> 1 for errors
-    if( ret < 0 )
-        ret = 1;
-
-    return( ret );
-}
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_SSL_TLS_C &&
-          MBEDTLS_SSL_SRV_C && MBEDTLS_NET_C && MBEDTLS_RSA_C &&
-          MBEDTLS_CTR_DRBG_C */
diff --git a/programs/test/CMakeLists.txt b/programs/test/CMakeLists.txt
index 64ed379..192ac4c 100644
--- a/programs/test/CMakeLists.txt
+++ b/programs/test/CMakeLists.txt
@@ -1,15 +1,7 @@
 set(libs
-    mbedtls
+    mbedcrypto
 )
 
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
-if(ENABLE_ZLIB_SUPPORT)
-    set(libs ${libs} ${ZLIB_LIBRARIES})
-endif(ENABLE_ZLIB_SUPPORT)
-
 add_executable(selftest selftest.c)
 target_link_libraries(selftest ${libs})
 
@@ -21,9 +13,6 @@
     target_link_libraries(cpp_dummy_build ${libs})
 endif()
 
-add_executable(udp_proxy udp_proxy.c)
-target_link_libraries(udp_proxy ${libs})
-
 add_executable(zeroize zeroize.c)
 target_link_libraries(zeroize ${libs})
 
@@ -31,6 +20,6 @@
 target_sources(query_compile_time_config PUBLIC query_config.c)
 target_link_libraries(query_compile_time_config ${libs})
 
-install(TARGETS selftest benchmark udp_proxy query_compile_time_config
+install(TARGETS selftest benchmark query_compile_time_config
         DESTINATION "bin"
         PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
diff --git a/programs/test/benchmark.c b/programs/test/benchmark.c
index 8d7ecf7..e31faaf 100644
--- a/programs/test/benchmark.c
+++ b/programs/test/benchmark.c
@@ -163,7 +163,7 @@
 
 #define MEMORY_MEASURE_PRINT( title_len )                               \
     mbedtls_memory_buffer_alloc_max_get( &max_used, &max_blocks );      \
-    for( ii = 12 - title_len; ii != 0; ii-- ) mbedtls_printf( " " );    \
+    for( ii = 12 - (title_len); ii != 0; ii-- ) mbedtls_printf( " " );  \
     max_used -= prv_used;                                               \
     max_blocks -= prv_blocks;                                           \
     max_bytes = max_used + MEM_BLOCK_OVERHEAD * max_blocks;             \
diff --git a/programs/test/cpp_dummy_build.cpp b/programs/test/cpp_dummy_build.cpp
index f33038f..c1dc743 100644
--- a/programs/test/cpp_dummy_build.cpp
+++ b/programs/test/cpp_dummy_build.cpp
@@ -46,7 +46,6 @@
 #include "mbedtls/cipher_internal.h"
 #include "mbedtls/cmac.h"
 #include "mbedtls/ctr_drbg.h"
-#include "mbedtls/debug.h"
 #include "mbedtls/des.h"
 #include "mbedtls/dhm.h"
 #include "mbedtls/ecdh.h"
@@ -66,15 +65,12 @@
 #include "mbedtls/md4.h"
 #include "mbedtls/md5.h"
 #include "mbedtls/md_internal.h"
-#include "mbedtls/net.h"
-#include "mbedtls/net_sockets.h"
 #include "mbedtls/nist_kw.h"
 #include "mbedtls/oid.h"
 #include "mbedtls/padlock.h"
 #include "mbedtls/pem.h"
 #include "mbedtls/pk.h"
 #include "mbedtls/pk_internal.h"
-#include "mbedtls/pkcs11.h"
 #include "mbedtls/pkcs12.h"
 #include "mbedtls/pkcs5.h"
 #include "mbedtls/platform_time.h"
@@ -87,12 +83,6 @@
 #include "mbedtls/sha1.h"
 #include "mbedtls/sha256.h"
 #include "mbedtls/sha512.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/ssl_cache.h"
-#include "mbedtls/ssl_ciphersuites.h"
-#include "mbedtls/ssl_cookie.h"
-#include "mbedtls/ssl_internal.h"
-#include "mbedtls/ssl_ticket.h"
 #include "mbedtls/threading.h"
 #include "mbedtls/timing.h"
 #include "mbedtls/version.h"
diff --git a/programs/test/query_config.c b/programs/test/query_config.c
index 3e9abd4..fc25353 100644
--- a/programs/test/query_config.c
+++ b/programs/test/query_config.c
@@ -53,7 +53,6 @@
 #include "mbedtls/cipher.h"
 #include "mbedtls/cmac.h"
 #include "mbedtls/ctr_drbg.h"
-#include "mbedtls/debug.h"
 #include "mbedtls/des.h"
 #include "mbedtls/dhm.h"
 #include "mbedtls/ecdh.h"
@@ -72,13 +71,11 @@
 #include "mbedtls/md4.h"
 #include "mbedtls/md5.h"
 #include "mbedtls/memory_buffer_alloc.h"
-#include "mbedtls/net_sockets.h"
 #include "mbedtls/nist_kw.h"
 #include "mbedtls/oid.h"
 #include "mbedtls/padlock.h"
 #include "mbedtls/pem.h"
 #include "mbedtls/pk.h"
-#include "mbedtls/pkcs11.h"
 #include "mbedtls/pkcs12.h"
 #include "mbedtls/pkcs5.h"
 #include "mbedtls/platform_time.h"
@@ -89,19 +86,9 @@
 #include "mbedtls/sha1.h"
 #include "mbedtls/sha256.h"
 #include "mbedtls/sha512.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/ssl_cache.h"
-#include "mbedtls/ssl_ciphersuites.h"
-#include "mbedtls/ssl_cookie.h"
-#include "mbedtls/ssl_internal.h"
-#include "mbedtls/ssl_ticket.h"
 #include "mbedtls/threading.h"
 #include "mbedtls/timing.h"
 #include "mbedtls/version.h"
-#include "mbedtls/x509.h"
-#include "mbedtls/x509_crl.h"
-#include "mbedtls/x509_crt.h"
-#include "mbedtls/x509_csr.h"
 #include "mbedtls/xtea.h"
 
 #include <string.h>
@@ -834,30 +821,6 @@
     }
 #endif /* MBEDTLS_CIPHER_PADDING_ZEROS */
 
-#if defined(MBEDTLS_ENABLE_WEAK_CIPHERSUITES)
-    if( strcmp( "MBEDTLS_ENABLE_WEAK_CIPHERSUITES", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_ENABLE_WEAK_CIPHERSUITES );
-        return( 0 );
-    }
-#endif /* MBEDTLS_ENABLE_WEAK_CIPHERSUITES */
-
-#if defined(MBEDTLS_REMOVE_ARC4_CIPHERSUITES)
-    if( strcmp( "MBEDTLS_REMOVE_ARC4_CIPHERSUITES", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_REMOVE_ARC4_CIPHERSUITES );
-        return( 0 );
-    }
-#endif /* MBEDTLS_REMOVE_ARC4_CIPHERSUITES */
-
-#if defined(MBEDTLS_REMOVE_3DES_CIPHERSUITES)
-    if( strcmp( "MBEDTLS_REMOVE_3DES_CIPHERSUITES", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_REMOVE_3DES_CIPHERSUITES );
-        return( 0 );
-    }
-#endif /* MBEDTLS_REMOVE_3DES_CIPHERSUITES */
-
 #if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
     if( strcmp( "MBEDTLS_ECP_DP_SECP192R1_ENABLED", config ) == 0 )
     {
@@ -994,94 +957,6 @@
     }
 #endif /* MBEDTLS_ECDSA_DETERMINISTIC */
 
-#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_PSK_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_PSK_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_RSA_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_RSA_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */
-
-#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( strcmp( "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED );
-        return( 0 );
-    }
-#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-
 #if defined(MBEDTLS_PK_PARSE_EC_EXTENDED)
     if( strcmp( "MBEDTLS_PK_PARSE_EC_EXTENDED", config ) == 0 )
     {
@@ -1234,230 +1109,6 @@
     }
 #endif /* MBEDTLS_SHA256_SMALLER */
 
-#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
-    if( strcmp( "MBEDTLS_SSL_ALL_ALERT_MESSAGES", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_ALL_ALERT_MESSAGES );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_ALL_ALERT_MESSAGES */
-
-#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    if( strcmp( "MBEDTLS_SSL_ASYNC_PRIVATE", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_ASYNC_PRIVATE );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-
-#if defined(MBEDTLS_SSL_DEBUG_ALL)
-    if( strcmp( "MBEDTLS_SSL_DEBUG_ALL", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_DEBUG_ALL );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_DEBUG_ALL */
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    if( strcmp( "MBEDTLS_SSL_ENCRYPT_THEN_MAC", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_ENCRYPT_THEN_MAC );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-
-#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    if( strcmp( "MBEDTLS_SSL_EXTENDED_MASTER_SECRET", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_EXTENDED_MASTER_SECRET );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
-
-#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
-    if( strcmp( "MBEDTLS_SSL_FALLBACK_SCSV", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_FALLBACK_SCSV );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_FALLBACK_SCSV */
-
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    if( strcmp( "MBEDTLS_SSL_KEEP_PEER_CERTIFICATE", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_KEEP_PEER_CERTIFICATE );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( strcmp( "MBEDTLS_SSL_HW_RECORD_ACCEL", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_HW_RECORD_ACCEL );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
-
-#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-    if( strcmp( "MBEDTLS_SSL_CBC_RECORD_SPLITTING", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_CBC_RECORD_SPLITTING );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */
-
-#if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( strcmp( "MBEDTLS_SSL_RENEGOTIATION", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_RENEGOTIATION );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_RENEGOTIATION */
-
-#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
-    if( strcmp( "MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */
-
-#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
-    if( strcmp( "MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE */
-
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    if( strcmp( "MBEDTLS_SSL_MAX_FRAGMENT_LENGTH", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_MAX_FRAGMENT_LENGTH );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
-
-#if defined(MBEDTLS_SSL_PROTO_SSL3)
-    if( strcmp( "MBEDTLS_SSL_PROTO_SSL3", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_PROTO_SSL3 );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_PROTO_SSL3 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1)
-    if( strcmp( "MBEDTLS_SSL_PROTO_TLS1", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_PROTO_TLS1 );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_PROTO_TLS1 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    if( strcmp( "MBEDTLS_SSL_PROTO_TLS1_1", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_PROTO_TLS1_1 );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_PROTO_TLS1_1 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( strcmp( "MBEDTLS_SSL_PROTO_TLS1_2", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_PROTO_TLS1_2 );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-
-#if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( strcmp( "MBEDTLS_SSL_PROTO_DTLS", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_PROTO_DTLS );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_PROTO_DTLS */
-
-#if defined(MBEDTLS_SSL_ALPN)
-    if( strcmp( "MBEDTLS_SSL_ALPN", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_ALPN );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_ALPN */
-
-#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    if( strcmp( "MBEDTLS_SSL_DTLS_ANTI_REPLAY", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_DTLS_ANTI_REPLAY );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
-
-#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-    if( strcmp( "MBEDTLS_SSL_DTLS_HELLO_VERIFY", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_DTLS_HELLO_VERIFY );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
-
-#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE)
-    if( strcmp( "MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE */
-
-#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-    if( strcmp( "MBEDTLS_SSL_DTLS_BADMAC_LIMIT", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_DTLS_BADMAC_LIMIT );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    if( strcmp( "MBEDTLS_SSL_SESSION_TICKETS", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_SESSION_TICKETS );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-#if defined(MBEDTLS_SSL_EXPORT_KEYS)
-    if( strcmp( "MBEDTLS_SSL_EXPORT_KEYS", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_EXPORT_KEYS );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_EXPORT_KEYS */
-
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    if( strcmp( "MBEDTLS_SSL_SERVER_NAME_INDICATION", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_SERVER_NAME_INDICATION );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    if( strcmp( "MBEDTLS_SSL_TRUNCATED_HMAC", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_TRUNCATED_HMAC );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
-
-#if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT)
-    if( strcmp( "MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT */
-
 #if defined(MBEDTLS_THREADING_ALT)
     if( strcmp( "MBEDTLS_THREADING_ALT", config ) == 0 )
     {
@@ -1490,62 +1141,6 @@
     }
 #endif /* MBEDTLS_VERSION_FEATURES */
 
-#if defined(MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3)
-    if( strcmp( "MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 */
-
-#if defined(MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION)
-    if( strcmp( "MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION */
-
-#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    if( strcmp( "MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
-
-#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
-    if( strcmp( "MBEDTLS_X509_CHECK_KEY_USAGE", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_CHECK_KEY_USAGE );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_CHECK_KEY_USAGE */
-
-#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
-    if( strcmp( "MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */
-
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
-    if( strcmp( "MBEDTLS_X509_RSASSA_PSS_SUPPORT", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_RSASSA_PSS_SUPPORT );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
-
-#if defined(MBEDTLS_ZLIB_SUPPORT)
-    if( strcmp( "MBEDTLS_ZLIB_SUPPORT", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_ZLIB_SUPPORT );
-        return( 0 );
-    }
-#endif /* MBEDTLS_ZLIB_SUPPORT */
-
 #if defined(MBEDTLS_AESNI_C)
     if( strcmp( "MBEDTLS_AESNI_C", config ) == 0 )
     {
@@ -1634,14 +1229,6 @@
     }
 #endif /* MBEDTLS_CCM_C */
 
-#if defined(MBEDTLS_CERTS_C)
-    if( strcmp( "MBEDTLS_CERTS_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_CERTS_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_CERTS_C */
-
 #if defined(MBEDTLS_CHACHA20_C)
     if( strcmp( "MBEDTLS_CHACHA20_C", config ) == 0 )
     {
@@ -1682,14 +1269,6 @@
     }
 #endif /* MBEDTLS_CTR_DRBG_C */
 
-#if defined(MBEDTLS_DEBUG_C)
-    if( strcmp( "MBEDTLS_DEBUG_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_DEBUG_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_DEBUG_C */
-
 #if defined(MBEDTLS_DES_C)
     if( strcmp( "MBEDTLS_DES_C", config ) == 0 )
     {
@@ -1834,14 +1413,6 @@
     }
 #endif /* MBEDTLS_MEMORY_BUFFER_ALLOC_C */
 
-#if defined(MBEDTLS_NET_C)
-    if( strcmp( "MBEDTLS_NET_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_NET_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_NET_C */
-
 #if defined(MBEDTLS_OID_C)
     if( strcmp( "MBEDTLS_OID_C", config ) == 0 )
     {
@@ -1906,14 +1477,6 @@
     }
 #endif /* MBEDTLS_PKCS5_C */
 
-#if defined(MBEDTLS_PKCS11_C)
-    if( strcmp( "MBEDTLS_PKCS11_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_PKCS11_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_PKCS11_C */
-
 #if defined(MBEDTLS_PKCS12_C)
     if( strcmp( "MBEDTLS_PKCS12_C", config ) == 0 )
     {
@@ -2002,54 +1565,6 @@
     }
 #endif /* MBEDTLS_SHA512_C */
 
-#if defined(MBEDTLS_SSL_CACHE_C)
-    if( strcmp( "MBEDTLS_SSL_CACHE_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_CACHE_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_CACHE_C */
-
-#if defined(MBEDTLS_SSL_COOKIE_C)
-    if( strcmp( "MBEDTLS_SSL_COOKIE_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_COOKIE_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_COOKIE_C */
-
-#if defined(MBEDTLS_SSL_TICKET_C)
-    if( strcmp( "MBEDTLS_SSL_TICKET_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_TICKET_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_TICKET_C */
-
-#if defined(MBEDTLS_SSL_CLI_C)
-    if( strcmp( "MBEDTLS_SSL_CLI_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_CLI_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_CLI_C */
-
-#if defined(MBEDTLS_SSL_SRV_C)
-    if( strcmp( "MBEDTLS_SSL_SRV_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_SRV_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_SRV_C */
-
-#if defined(MBEDTLS_SSL_TLS_C)
-    if( strcmp( "MBEDTLS_SSL_TLS_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_TLS_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_TLS_C */
-
 #if defined(MBEDTLS_THREADING_C)
     if( strcmp( "MBEDTLS_THREADING_C", config ) == 0 )
     {
@@ -2074,62 +1589,6 @@
     }
 #endif /* MBEDTLS_VERSION_C */
 
-#if defined(MBEDTLS_X509_USE_C)
-    if( strcmp( "MBEDTLS_X509_USE_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_USE_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_USE_C */
-
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-    if( strcmp( "MBEDTLS_X509_CRT_PARSE_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_CRT_PARSE_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-#if defined(MBEDTLS_X509_CRL_PARSE_C)
-    if( strcmp( "MBEDTLS_X509_CRL_PARSE_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_CRL_PARSE_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_CRL_PARSE_C */
-
-#if defined(MBEDTLS_X509_CSR_PARSE_C)
-    if( strcmp( "MBEDTLS_X509_CSR_PARSE_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_CSR_PARSE_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_CSR_PARSE_C */
-
-#if defined(MBEDTLS_X509_CREATE_C)
-    if( strcmp( "MBEDTLS_X509_CREATE_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_CREATE_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_CREATE_C */
-
-#if defined(MBEDTLS_X509_CRT_WRITE_C)
-    if( strcmp( "MBEDTLS_X509_CRT_WRITE_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_CRT_WRITE_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_CRT_WRITE_C */
-
-#if defined(MBEDTLS_X509_CSR_WRITE_C)
-    if( strcmp( "MBEDTLS_X509_CSR_WRITE_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_CSR_WRITE_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_CSR_WRITE_C */
-
 #if defined(MBEDTLS_XTEA_C)
     if( strcmp( "MBEDTLS_XTEA_C", config ) == 0 )
     {
@@ -2482,110 +1941,6 @@
     }
 #endif /* MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO */
 
-#if defined(MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT)
-    if( strcmp( "MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT */
-
-#if defined(MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES)
-    if( strcmp( "MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES */
-
-#if defined(MBEDTLS_SSL_MAX_CONTENT_LEN)
-    if( strcmp( "MBEDTLS_SSL_MAX_CONTENT_LEN", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_MAX_CONTENT_LEN );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_MAX_CONTENT_LEN */
-
-#if defined(MBEDTLS_SSL_IN_CONTENT_LEN)
-    if( strcmp( "MBEDTLS_SSL_IN_CONTENT_LEN", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_IN_CONTENT_LEN );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_IN_CONTENT_LEN */
-
-#if defined(MBEDTLS_SSL_OUT_CONTENT_LEN)
-    if( strcmp( "MBEDTLS_SSL_OUT_CONTENT_LEN", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_OUT_CONTENT_LEN );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_OUT_CONTENT_LEN */
-
-#if defined(MBEDTLS_SSL_DTLS_MAX_BUFFERING)
-    if( strcmp( "MBEDTLS_SSL_DTLS_MAX_BUFFERING", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_DTLS_MAX_BUFFERING );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_DTLS_MAX_BUFFERING */
-
-#if defined(MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME)
-    if( strcmp( "MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME */
-
-#if defined(MBEDTLS_PSK_MAX_LEN)
-    if( strcmp( "MBEDTLS_PSK_MAX_LEN", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_PSK_MAX_LEN );
-        return( 0 );
-    }
-#endif /* MBEDTLS_PSK_MAX_LEN */
-
-#if defined(MBEDTLS_SSL_COOKIE_TIMEOUT)
-    if( strcmp( "MBEDTLS_SSL_COOKIE_TIMEOUT", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_COOKIE_TIMEOUT );
-        return( 0 );
-    }
-#endif /* MBEDTLS_SSL_COOKIE_TIMEOUT */
-
-#if defined(MBEDTLS_X509_MAX_INTERMEDIATE_CA)
-    if( strcmp( "MBEDTLS_X509_MAX_INTERMEDIATE_CA", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_MAX_INTERMEDIATE_CA );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_MAX_INTERMEDIATE_CA */
-
-#if defined(MBEDTLS_X509_MAX_FILE_PATH_LEN)
-    if( strcmp( "MBEDTLS_X509_MAX_FILE_PATH_LEN", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_MAX_FILE_PATH_LEN );
-        return( 0 );
-    }
-#endif /* MBEDTLS_X509_MAX_FILE_PATH_LEN */
-
-#if defined(MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES)
-    if( strcmp( "MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES );
-        return( 0 );
-    }
-#endif /* MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES */
-
-#if defined(MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE)
-    if( strcmp( "MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE );
-        return( 0 );
-    }
-#endif /* MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE */
-
 #if defined(MBEDTLS_PLATFORM_ZEROIZE_ALT)
     if( strcmp( "MBEDTLS_PLATFORM_ZEROIZE_ALT", config ) == 0 )
     {
diff --git a/programs/test/udp_proxy.c b/programs/test/udp_proxy.c
deleted file mode 100644
index 41739d0..0000000
--- a/programs/test/udp_proxy.c
+++ /dev/null
@@ -1,944 +0,0 @@
-/*
- *  UDP proxy: emulate an unreliable UDP connexion for DTLS testing
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-/*
- * Warning: this is an internal utility program we use for tests.
- * It does break some abstractions from the NET layer, and is thus NOT an
- * example of good general usage.
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#define mbedtls_time            time
-#define mbedtls_time_t          time_t
-#define mbedtls_printf          printf
-#define mbedtls_calloc          calloc
-#define mbedtls_free            free
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif /* MBEDTLS_PLATFORM_C */
-
-#if !defined(MBEDTLS_NET_C)
-int main( void )
-{
-    mbedtls_printf( "MBEDTLS_NET_C not defined.\n" );
-    return( 0 );
-}
-#else
-
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/error.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/timing.h"
-
-#include <string.h>
-
-/* For select() */
-#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
-    !defined(EFI32)
-#include <winsock2.h>
-#include <windows.h>
-#if defined(_MSC_VER)
-#if defined(_WIN32_WCE)
-#pragma comment( lib, "ws2.lib" )
-#else
-#pragma comment( lib, "ws2_32.lib" )
-#endif
-#endif /* _MSC_VER */
-#else /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
-#include <sys/time.h>
-#include <sys/types.h>
-#include <unistd.h>
-#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
-
-#define MAX_MSG_SIZE            16384 + 2048 /* max record/datagram size */
-
-#define DFL_SERVER_ADDR         "localhost"
-#define DFL_SERVER_PORT         "4433"
-#define DFL_LISTEN_ADDR         "localhost"
-#define DFL_LISTEN_PORT         "5556"
-#define DFL_PACK                0
-
-#if defined(MBEDTLS_TIMING_C)
-#define USAGE_PACK                                                          \
-    "    pack=%%d             default: 0     (don't pack)\n"                \
-    "                         options: t > 0 (pack for t milliseconds)\n"
-#else
-#define USAGE_PACK
-#endif
-
-#define USAGE                                                               \
-    "\n usage: udp_proxy param=<>...\n"                                     \
-    "\n acceptable parameters:\n"                                           \
-    "    server_addr=%%s      default: localhost\n"                         \
-    "    server_port=%%d      default: 4433\n"                              \
-    "    listen_addr=%%s      default: localhost\n"                         \
-    "    listen_port=%%d      default: 4433\n"                              \
-    "\n"                                                                    \
-    "    duplicate=%%d        default: 0 (no duplication)\n"                \
-    "                        duplicate about 1:N packets randomly\n"        \
-    "    delay=%%d            default: 0 (no delayed packets)\n"            \
-    "                        delay about 1:N packets randomly\n"            \
-    "    delay_ccs=0/1       default: 0 (don't delay ChangeCipherSpec)\n"   \
-    "    delay_cli=%%s        Handshake message from client that should be\n"\
-    "                        delayed. Possible values are 'ClientHello',\n" \
-    "                        'Certificate', 'CertificateVerify', and\n"     \
-    "                        'ClientKeyExchange'.\n"                        \
-    "                        May be used multiple times, even for the same\n"\
-    "                        message, in which case the respective message\n"\
-    "                        gets delayed multiple times.\n"                 \
-    "    delay_srv=%%s        Handshake message from server that should be\n"\
-    "                        delayed. Possible values are 'HelloRequest',\n"\
-    "                        'ServerHello', 'ServerHelloDone', 'Certificate'\n"\
-    "                        'ServerKeyExchange', 'NewSessionTicket',\n"\
-    "                        'HelloVerifyRequest' and ''CertificateRequest'.\n"\
-    "                        May be used multiple times, even for the same\n"\
-    "                        message, in which case the respective message\n"\
-    "                        gets delayed multiple times.\n"                 \
-    "    drop=%%d             default: 0 (no dropped packets)\n"            \
-    "                        drop about 1:N packets randomly\n"             \
-    "    mtu=%%d              default: 0 (unlimited)\n"                     \
-    "                        drop packets larger than N bytes\n"            \
-    "    bad_ad=0/1          default: 0 (don't add bad ApplicationData)\n"  \
-    "    protect_hvr=0/1     default: 0 (don't protect HelloVerifyRequest)\n" \
-    "    protect_len=%%d      default: (don't protect packets of this size)\n" \
-    "\n"                                                                    \
-    "    seed=%%d             default: (use current time)\n"                \
-    USAGE_PACK                                                              \
-    "\n"
-
-/*
- * global options
- */
-
-#define MAX_DELAYED_HS 10
-
-static struct options
-{
-    const char *server_addr;    /* address to forward packets to            */
-    const char *server_port;    /* port to forward packets to               */
-    const char *listen_addr;    /* address for accepting client connections */
-    const char *listen_port;    /* port for accepting client connections    */
-
-    int duplicate;              /* duplicate 1 in N packets (none if 0)     */
-    int delay;                  /* delay 1 packet in N (none if 0)          */
-    int delay_ccs;              /* delay ChangeCipherSpec                   */
-    char* delay_cli[MAX_DELAYED_HS];  /* handshake types of messages from
-                                       * client that should be delayed.     */
-    uint8_t delay_cli_cnt;      /* Number of entries in delay_cli.          */
-    char* delay_srv[MAX_DELAYED_HS];  /* handshake types of messages from
-                                       * server that should be delayed.     */
-    uint8_t delay_srv_cnt;      /* Number of entries in delay_srv.          */
-    int drop;                   /* drop 1 packet in N (none if 0)           */
-    int mtu;                    /* drop packets larger than this            */
-    int bad_ad;                 /* inject corrupted ApplicationData record  */
-    int protect_hvr;            /* never drop or delay HelloVerifyRequest   */
-    int protect_len;            /* never drop/delay packet of the given size*/
-    unsigned pack;              /* merge packets into single datagram for
-                                 * at most \c merge milliseconds if > 0     */
-    unsigned int seed;          /* seed for "random" events                 */
-} opt;
-
-static void exit_usage( const char *name, const char *value )
-{
-    if( value == NULL )
-        mbedtls_printf( " unknown option or missing value: %s\n", name );
-    else
-        mbedtls_printf( " option %s: illegal value: %s\n", name, value );
-
-    mbedtls_printf( USAGE );
-    exit( 1 );
-}
-
-static void get_options( int argc, char *argv[] )
-{
-    int i;
-    char *p, *q;
-
-    opt.server_addr    = DFL_SERVER_ADDR;
-    opt.server_port    = DFL_SERVER_PORT;
-    opt.listen_addr    = DFL_LISTEN_ADDR;
-    opt.listen_port    = DFL_LISTEN_PORT;
-    opt.pack           = DFL_PACK;
-    /* Other members default to 0 */
-
-    opt.delay_cli_cnt = 0;
-    opt.delay_srv_cnt = 0;
-    memset( opt.delay_cli, 0, sizeof( opt.delay_cli ) );
-    memset( opt.delay_srv, 0, sizeof( opt.delay_srv ) );
-
-    for( i = 1; i < argc; i++ )
-    {
-        p = argv[i];
-        if( ( q = strchr( p, '=' ) ) == NULL )
-            exit_usage( p, NULL );
-        *q++ = '\0';
-
-        if( strcmp( p, "server_addr" ) == 0 )
-            opt.server_addr = q;
-        else if( strcmp( p, "server_port" ) == 0 )
-            opt.server_port = q;
-        else if( strcmp( p, "listen_addr" ) == 0 )
-            opt.listen_addr = q;
-        else if( strcmp( p, "listen_port" ) == 0 )
-            opt.listen_port = q;
-        else if( strcmp( p, "duplicate" ) == 0 )
-        {
-            opt.duplicate = atoi( q );
-            if( opt.duplicate < 0 || opt.duplicate > 20 )
-                exit_usage( p, q );
-        }
-        else if( strcmp( p, "delay" ) == 0 )
-        {
-            opt.delay = atoi( q );
-            if( opt.delay < 0 || opt.delay > 20 || opt.delay == 1 )
-                exit_usage( p, q );
-        }
-        else if( strcmp( p, "delay_ccs" ) == 0 )
-        {
-            opt.delay_ccs = atoi( q );
-            if( opt.delay_ccs < 0 || opt.delay_ccs > 1 )
-                exit_usage( p, q );
-        }
-        else if( strcmp( p, "delay_cli" ) == 0 ||
-                 strcmp( p, "delay_srv" ) == 0 )
-        {
-            uint8_t *delay_cnt;
-            char **delay_list;
-            size_t len;
-            char *buf;
-
-            if( strcmp( p, "delay_cli" ) == 0 )
-            {
-                delay_cnt  = &opt.delay_cli_cnt;
-                delay_list = opt.delay_cli;
-            }
-            else
-            {
-                delay_cnt  = &opt.delay_srv_cnt;
-                delay_list = opt.delay_srv;
-            }
-
-            if( *delay_cnt == MAX_DELAYED_HS )
-            {
-                mbedtls_printf( " too many uses of %s: only %d allowed\n",
-                                p, MAX_DELAYED_HS );
-                exit_usage( p, NULL );
-            }
-
-            len = strlen( q );
-            buf = mbedtls_calloc( 1, len + 1 );
-            if( buf == NULL )
-            {
-                mbedtls_printf( " Allocation failure\n" );
-                exit( 1 );
-            }
-            memcpy( buf, q, len + 1 );
-
-            delay_list[ (*delay_cnt)++ ] = buf;
-        }
-        else if( strcmp( p, "drop" ) == 0 )
-        {
-            opt.drop = atoi( q );
-            if( opt.drop < 0 || opt.drop > 20 || opt.drop == 1 )
-                exit_usage( p, q );
-        }
-        else if( strcmp( p, "pack" ) == 0 )
-        {
-#if defined(MBEDTLS_TIMING_C)
-            opt.pack = (unsigned) atoi( q );
-#else
-            mbedtls_printf( " option pack only defined if MBEDTLS_TIMING_C is enabled\n" );
-            exit( 1 );
-#endif
-        }
-        else if( strcmp( p, "mtu" ) == 0 )
-        {
-            opt.mtu = atoi( q );
-            if( opt.mtu < 0 || opt.mtu > MAX_MSG_SIZE )
-                exit_usage( p, q );
-        }
-        else if( strcmp( p, "bad_ad" ) == 0 )
-        {
-            opt.bad_ad = atoi( q );
-            if( opt.bad_ad < 0 || opt.bad_ad > 1 )
-                exit_usage( p, q );
-        }
-        else if( strcmp( p, "protect_hvr" ) == 0 )
-        {
-            opt.protect_hvr = atoi( q );
-            if( opt.protect_hvr < 0 || opt.protect_hvr > 1 )
-                exit_usage( p, q );
-        }
-        else if( strcmp( p, "protect_len" ) == 0 )
-        {
-            opt.protect_len = atoi( q );
-            if( opt.protect_len < 0 )
-                exit_usage( p, q );
-        }
-        else if( strcmp( p, "seed" ) == 0 )
-        {
-            opt.seed = atoi( q );
-            if( opt.seed == 0 )
-                exit_usage( p, q );
-        }
-        else
-            exit_usage( p, NULL );
-    }
-}
-
-static const char *msg_type( unsigned char *msg, size_t len )
-{
-    if( len < 1 )                           return( "Invalid" );
-    switch( msg[0] )
-    {
-        case MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC:    return( "ChangeCipherSpec" );
-        case MBEDTLS_SSL_MSG_ALERT:                 return( "Alert" );
-        case MBEDTLS_SSL_MSG_APPLICATION_DATA:      return( "ApplicationData" );
-        case MBEDTLS_SSL_MSG_HANDSHAKE:             break; /* See below */
-        default:                            return( "Unknown" );
-    }
-
-    if( len < 13 + 12 )                     return( "Invalid handshake" );
-
-    /*
-     * Our handshake message are less than 2^16 bytes long, so they should
-     * have 0 as the first byte of length, frag_offset and frag_length.
-     * Otherwise, assume they are encrypted.
-     */
-    if( msg[14] || msg[19] || msg[22] )     return( "Encrypted handshake" );
-
-    switch( msg[13] )
-    {
-        case MBEDTLS_SSL_HS_HELLO_REQUEST:          return( "HelloRequest" );
-        case MBEDTLS_SSL_HS_CLIENT_HELLO:           return( "ClientHello" );
-        case MBEDTLS_SSL_HS_SERVER_HELLO:           return( "ServerHello" );
-        case MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST:   return( "HelloVerifyRequest" );
-        case MBEDTLS_SSL_HS_NEW_SESSION_TICKET:     return( "NewSessionTicket" );
-        case MBEDTLS_SSL_HS_CERTIFICATE:            return( "Certificate" );
-        case MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE:    return( "ServerKeyExchange" );
-        case MBEDTLS_SSL_HS_CERTIFICATE_REQUEST:    return( "CertificateRequest" );
-        case MBEDTLS_SSL_HS_SERVER_HELLO_DONE:      return( "ServerHelloDone" );
-        case MBEDTLS_SSL_HS_CERTIFICATE_VERIFY:     return( "CertificateVerify" );
-        case MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE:    return( "ClientKeyExchange" );
-        case MBEDTLS_SSL_HS_FINISHED:               return( "Finished" );
-        default:                            return( "Unknown handshake" );
-    }
-}
-
-#if defined(MBEDTLS_TIMING_C)
-/* Return elapsed time in milliseconds since the first call */
-static unsigned ellapsed_time( void )
-{
-    static int initialized = 0;
-    static struct mbedtls_timing_hr_time hires;
-
-    if( initialized == 0 )
-    {
-        (void) mbedtls_timing_get_timer( &hires, 1 );
-        initialized = 1;
-        return( 0 );
-    }
-
-    return( mbedtls_timing_get_timer( &hires, 0 ) );
-}
-
-typedef struct
-{
-    mbedtls_net_context *ctx;
-
-    const char *description;
-
-    unsigned packet_lifetime;
-    unsigned num_datagrams;
-
-    unsigned char data[MAX_MSG_SIZE];
-    size_t len;
-
-} ctx_buffer;
-
-static ctx_buffer outbuf[2];
-
-static int ctx_buffer_flush( ctx_buffer *buf )
-{
-    int ret;
-
-    mbedtls_printf( "  %05u flush    %s: %u bytes, %u datagrams, last %u ms\n",
-                    ellapsed_time(), buf->description,
-                    (unsigned) buf->len, buf->num_datagrams,
-                    ellapsed_time() - buf->packet_lifetime );
-
-    ret = mbedtls_net_send( buf->ctx, buf->data, buf->len );
-
-    buf->len           = 0;
-    buf->num_datagrams = 0;
-
-    return( ret );
-}
-
-static unsigned ctx_buffer_time_remaining( ctx_buffer *buf )
-{
-    unsigned const cur_time = ellapsed_time();
-
-    if( buf->num_datagrams == 0 )
-        return( (unsigned) -1 );
-
-    if( cur_time - buf->packet_lifetime >= opt.pack )
-        return( 0 );
-
-    return( opt.pack - ( cur_time - buf->packet_lifetime ) );
-}
-
-static int ctx_buffer_append( ctx_buffer *buf,
-                              const unsigned char * data,
-                              size_t len )
-{
-    int ret;
-
-    if( len > (size_t) INT_MAX )
-        return( -1 );
-
-    if( len > sizeof( buf->data ) )
-    {
-        mbedtls_printf( "  ! buffer size %u too large (max %u)\n",
-                        (unsigned) len, (unsigned) sizeof( buf->data ) );
-        return( -1 );
-    }
-
-    if( sizeof( buf->data ) - buf->len < len )
-    {
-        if( ( ret = ctx_buffer_flush( buf ) ) <= 0 )
-            return( ret );
-    }
-
-    memcpy( buf->data + buf->len, data, len );
-
-    buf->len += len;
-    if( ++buf->num_datagrams == 1 )
-        buf->packet_lifetime = ellapsed_time();
-
-    return( (int) len );
-}
-#endif /* MBEDTLS_TIMING_C */
-
-static int dispatch_data( mbedtls_net_context *ctx,
-                          const unsigned char * data,
-                          size_t len )
-{
-#if defined(MBEDTLS_TIMING_C)
-    ctx_buffer *buf = NULL;
-    if( opt.pack > 0 )
-    {
-        if( outbuf[0].ctx == ctx )
-            buf = &outbuf[0];
-        else if( outbuf[1].ctx == ctx )
-            buf = &outbuf[1];
-
-        if( buf == NULL )
-            return( -1 );
-
-        return( ctx_buffer_append( buf, data, len ) );
-    }
-#endif /* MBEDTLS_TIMING_C */
-
-    return( mbedtls_net_send( ctx, data, len ) );
-}
-
-typedef struct
-{
-    mbedtls_net_context *dst;
-    const char *way;
-    const char *type;
-    unsigned len;
-    unsigned char buf[MAX_MSG_SIZE];
-} packet;
-
-/* Print packet. Outgoing packets come with a reason (forward, dupl, etc.) */
-void print_packet( const packet *p, const char *why )
-{
-#if defined(MBEDTLS_TIMING_C)
-    if( why == NULL )
-        mbedtls_printf( "  %05u dispatch %s %s (%u bytes)\n",
-                ellapsed_time(), p->way, p->type, p->len );
-    else
-        mbedtls_printf( "  %05u dispatch %s %s (%u bytes): %s\n",
-                ellapsed_time(), p->way, p->type, p->len, why );
-#else
-    if( why == NULL )
-        mbedtls_printf( "        dispatch %s %s (%u bytes)\n",
-                p->way, p->type, p->len );
-    else
-        mbedtls_printf( "        dispatch %s %s (%u bytes): %s\n",
-                p->way, p->type, p->len, why );
-#endif
-
-    fflush( stdout );
-}
-
-int send_packet( const packet *p, const char *why )
-{
-    int ret;
-    mbedtls_net_context *dst = p->dst;
-
-    /* insert corrupted ApplicationData record? */
-    if( opt.bad_ad &&
-        strcmp( p->type, "ApplicationData" ) == 0 )
-    {
-        unsigned char buf[MAX_MSG_SIZE];
-        memcpy( buf, p->buf, p->len );
-
-        if( p->len <= 13 )
-        {
-            mbedtls_printf( "  ! can't corrupt empty AD record" );
-        }
-        else
-        {
-            ++buf[13];
-            print_packet( p, "corrupted" );
-        }
-
-        if( ( ret = dispatch_data( dst, buf, p->len ) ) <= 0 )
-        {
-            mbedtls_printf( "  ! dispatch returned %d\n", ret );
-            return( ret );
-        }
-    }
-
-    print_packet( p, why );
-    if( ( ret = dispatch_data( dst, p->buf, p->len ) ) <= 0 )
-    {
-        mbedtls_printf( "  ! dispatch returned %d\n", ret );
-        return( ret );
-    }
-
-    /* Don't duplicate Application Data, only handshake covered */
-    if( opt.duplicate != 0 &&
-        strcmp( p->type, "ApplicationData" ) != 0 &&
-        rand() % opt.duplicate == 0 )
-    {
-        print_packet( p, "duplicated" );
-
-        if( ( ret = dispatch_data( dst, p->buf, p->len ) ) <= 0 )
-        {
-            mbedtls_printf( "  ! dispatch returned %d\n", ret );
-            return( ret );
-        }
-    }
-
-    return( 0 );
-}
-
-#define MAX_DELAYED_MSG 5
-static size_t prev_len;
-static packet prev[MAX_DELAYED_MSG];
-
-void clear_pending( void )
-{
-    memset( &prev, 0, sizeof( prev ) );
-    prev_len = 0;
-}
-
-void delay_packet( packet *delay )
-{
-    if( prev_len == MAX_DELAYED_MSG )
-        return;
-
-    memcpy( &prev[prev_len++], delay, sizeof( packet ) );
-}
-
-int send_delayed()
-{
-    uint8_t offset;
-    int ret;
-    for( offset = 0; offset < prev_len; offset++ )
-    {
-        ret = send_packet( &prev[offset], "delayed" );
-        if( ret != 0 )
-            return( ret );
-    }
-
-    clear_pending();
-    return( 0 );
-}
-
-/*
- * Avoid dropping or delaying a packet that was already dropped twice: this
- * only results in uninteresting timeouts. We can't rely on type to identify
- * packets, since during renegotiation they're all encrypted.  So, rely on
- * size mod 2048 (which is usually just size).
- */
-static unsigned char dropped[2048] = { 0 };
-#define DROP_MAX 2
-
-/*
- * OpenSSL groups packets in a datagram the first time it sends them, but not
- * when it resends them. Count every record as seen the first time.
- */
-void update_dropped( const packet *p )
-{
-    size_t id = p->len % sizeof( dropped );
-    const unsigned char *end = p->buf + p->len;
-    const unsigned char *cur = p->buf;
-    size_t len = ( ( cur[11] << 8 ) | cur[12] ) + 13;
-
-    ++dropped[id];
-
-    /* Avoid counting single record twice */
-    if( len == p->len )
-        return;
-
-    while( cur < end )
-    {
-        len = ( ( cur[11] << 8 ) | cur[12] ) + 13;
-
-        id = len % sizeof( dropped );
-        ++dropped[id];
-
-        cur += len;
-    }
-}
-
-int handle_message( const char *way,
-                    mbedtls_net_context *dst,
-                    mbedtls_net_context *src )
-{
-    int ret;
-    packet cur;
-    size_t id;
-
-    uint8_t delay_idx;
-    char ** delay_list;
-    uint8_t delay_list_len;
-
-    /* receive packet */
-    if( ( ret = mbedtls_net_recv( src, cur.buf, sizeof( cur.buf ) ) ) <= 0 )
-    {
-        mbedtls_printf( "  ! mbedtls_net_recv returned %d\n", ret );
-        return( ret );
-    }
-
-    cur.len  = ret;
-    cur.type = msg_type( cur.buf, cur.len );
-    cur.way  = way;
-    cur.dst  = dst;
-    print_packet( &cur, NULL );
-
-    id = cur.len % sizeof( dropped );
-
-    if( strcmp( way, "S <- C" ) == 0 )
-    {
-        delay_list     = opt.delay_cli;
-        delay_list_len = opt.delay_cli_cnt;
-    }
-    else
-    {
-        delay_list     = opt.delay_srv;
-        delay_list_len = opt.delay_srv_cnt;
-    }
-
-    /* Check if message type is in the list of messages
-     * that should be delayed */
-    for( delay_idx = 0; delay_idx < delay_list_len; delay_idx++ )
-    {
-        if( delay_list[ delay_idx ] == NULL )
-            continue;
-
-        if( strcmp( delay_list[ delay_idx ], cur.type ) == 0 )
-        {
-            /* Delay message */
-            delay_packet( &cur );
-
-            /* Remove entry from list */
-            mbedtls_free( delay_list[delay_idx] );
-            delay_list[delay_idx] = NULL;
-
-            return( 0 );
-        }
-    }
-
-    /* do we want to drop, delay, or forward it? */
-    if( ( opt.mtu != 0 &&
-          cur.len > (unsigned) opt.mtu ) ||
-        ( opt.drop != 0 &&
-          strcmp( cur.type, "ApplicationData" ) != 0 &&
-          ! ( opt.protect_hvr &&
-              strcmp( cur.type, "HelloVerifyRequest" ) == 0 ) &&
-          cur.len != (size_t) opt.protect_len &&
-          dropped[id] < DROP_MAX &&
-          rand() % opt.drop == 0 ) )
-    {
-        update_dropped( &cur );
-    }
-    else if( ( opt.delay_ccs == 1 &&
-               strcmp( cur.type, "ChangeCipherSpec" ) == 0 ) ||
-             ( opt.delay != 0 &&
-               strcmp( cur.type, "ApplicationData" ) != 0 &&
-               ! ( opt.protect_hvr &&
-                   strcmp( cur.type, "HelloVerifyRequest" ) == 0 ) &&
-               cur.len != (size_t) opt.protect_len &&
-               dropped[id] < DROP_MAX &&
-               rand() % opt.delay == 0 ) )
-    {
-        delay_packet( &cur );
-    }
-    else
-    {
-        /* forward and possibly duplicate */
-        if( ( ret = send_packet( &cur, "forwarded" ) ) != 0 )
-            return( ret );
-
-        /* send previously delayed messages if any */
-        ret = send_delayed();
-        if( ret != 0 )
-            return( ret );
-    }
-
-    return( 0 );
-}
-
-int main( int argc, char *argv[] )
-{
-    int ret = 1;
-    int exit_code = MBEDTLS_EXIT_FAILURE;
-    uint8_t delay_idx;
-
-    mbedtls_net_context listen_fd, client_fd, server_fd;
-
-#if defined( MBEDTLS_TIMING_C )
-    struct timeval tm;
-#endif
-
-    struct timeval *tm_ptr = NULL;
-
-    int nb_fds;
-    fd_set read_fds;
-
-    mbedtls_net_init( &listen_fd );
-    mbedtls_net_init( &client_fd );
-    mbedtls_net_init( &server_fd );
-
-    get_options( argc, argv );
-
-    /*
-     * Decisions to drop/delay/duplicate packets are pseudo-random: dropping
-     * exactly 1 in N packets would lead to problems when a flight has exactly
-     * N packets: the same packet would be dropped on every resend.
-     *
-     * In order to be able to reproduce problems reliably, the seed may be
-     * specified explicitly.
-     */
-    if( opt.seed == 0 )
-    {
-        opt.seed = (unsigned int) time( NULL );
-        mbedtls_printf( "  . Pseudo-random seed: %u\n", opt.seed );
-    }
-
-    srand( opt.seed );
-
-    /*
-     * 0. "Connect" to the server
-     */
-    mbedtls_printf( "  . Connect to server on UDP/%s/%s ...",
-            opt.server_addr, opt.server_port );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_connect( &server_fd, opt.server_addr, opt.server_port,
-                             MBEDTLS_NET_PROTO_UDP ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_connect returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1. Setup the "listening" UDP socket
-     */
-    mbedtls_printf( "  . Bind on UDP/%s/%s ...",
-            opt.listen_addr, opt.listen_port );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_bind( &listen_fd, opt.listen_addr, opt.listen_port,
-                          MBEDTLS_NET_PROTO_UDP ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_bind returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 2. Wait until a client connects
-     */
-accept:
-    mbedtls_net_free( &client_fd );
-
-    mbedtls_printf( "  . Waiting for a remote connection ..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_net_accept( &listen_fd, &client_fd,
-                                    NULL, 0, NULL ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_accept returned %d\n\n", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 3. Forward packets forever (kill the process to terminate it)
-     */
-    clear_pending();
-    memset( dropped, 0, sizeof( dropped ) );
-
-    nb_fds = client_fd.fd;
-    if( nb_fds < server_fd.fd )
-        nb_fds = server_fd.fd;
-    if( nb_fds < listen_fd.fd )
-        nb_fds = listen_fd.fd;
-    ++nb_fds;
-
-#if defined(MBEDTLS_TIMING_C)
-    if( opt.pack > 0 )
-    {
-        outbuf[0].ctx = &server_fd;
-        outbuf[0].description = "S <- C";
-        outbuf[0].num_datagrams = 0;
-        outbuf[0].len = 0;
-
-        outbuf[1].ctx = &client_fd;
-        outbuf[1].description = "S -> C";
-        outbuf[1].num_datagrams = 0;
-        outbuf[1].len = 0;
-    }
-#endif /* MBEDTLS_TIMING_C */
-
-    while( 1 )
-    {
-#if defined(MBEDTLS_TIMING_C)
-        if( opt.pack > 0 )
-        {
-            unsigned max_wait_server, max_wait_client, max_wait;
-            max_wait_server = ctx_buffer_time_remaining( &outbuf[0] );
-            max_wait_client = ctx_buffer_time_remaining( &outbuf[1] );
-
-            max_wait = (unsigned) -1;
-
-            if( max_wait_server == 0 )
-                ctx_buffer_flush( &outbuf[0] );
-            else
-                max_wait = max_wait_server;
-
-            if( max_wait_client == 0 )
-                ctx_buffer_flush( &outbuf[1] );
-            else
-            {
-                if( max_wait_client < max_wait )
-                    max_wait = max_wait_client;
-            }
-
-            if( max_wait != (unsigned) -1 )
-            {
-                tm.tv_sec  = max_wait / 1000;
-                tm.tv_usec = ( max_wait % 1000 ) * 1000;
-
-                tm_ptr = &tm;
-            }
-            else
-            {
-                tm_ptr = NULL;
-            }
-        }
-#endif /* MBEDTLS_TIMING_C */
-
-        FD_ZERO( &read_fds );
-        FD_SET( server_fd.fd, &read_fds );
-        FD_SET( client_fd.fd, &read_fds );
-        FD_SET( listen_fd.fd, &read_fds );
-
-        if( ( ret = select( nb_fds, &read_fds, NULL, NULL, tm_ptr ) ) < 0 )
-        {
-            perror( "select" );
-            goto exit;
-        }
-
-        if( FD_ISSET( listen_fd.fd, &read_fds ) )
-            goto accept;
-
-        if( FD_ISSET( client_fd.fd, &read_fds ) )
-        {
-            if( ( ret = handle_message( "S <- C",
-                                        &server_fd, &client_fd ) ) != 0 )
-                goto accept;
-        }
-
-        if( FD_ISSET( server_fd.fd, &read_fds ) )
-        {
-            if( ( ret = handle_message( "S -> C",
-                                        &client_fd, &server_fd ) ) != 0 )
-                goto accept;
-        }
-
-    }
-
-    exit_code = MBEDTLS_EXIT_SUCCESS;
-
-exit:
-
-#ifdef MBEDTLS_ERROR_C
-    if( exit_code != MBEDTLS_EXIT_SUCCESS )
-    {
-        char error_buf[100];
-        mbedtls_strerror( ret, error_buf, 100 );
-        mbedtls_printf( "Last error was: -0x%04X - %s\n\n", - ret, error_buf );
-        fflush( stdout );
-    }
-#endif
-
-    for( delay_idx = 0; delay_idx < MAX_DELAYED_HS; delay_idx++ )
-    {
-        mbedtls_free( opt.delay_cli + delay_idx );
-        mbedtls_free( opt.delay_srv + delay_idx );
-    }
-
-    mbedtls_net_free( &client_fd );
-    mbedtls_net_free( &server_fd );
-    mbedtls_net_free( &listen_fd );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( exit_code );
-}
-
-#endif /* MBEDTLS_NET_C */
diff --git a/programs/test/udp_proxy_wrapper.sh b/programs/test/udp_proxy_wrapper.sh
deleted file mode 100755
index 29033d5..0000000
--- a/programs/test/udp_proxy_wrapper.sh
+++ /dev/null
@@ -1,117 +0,0 @@
-#!/bin/sh
-# -*-sh-basic-offset: 4-*-
-# Usage: udp_proxy_wrapper.sh [PROXY_PARAM...] -- [SERVER_PARAM...]
-
-set -u
-
-MBEDTLS_BASE="$(dirname -- "$0")/../.."
-TPXY_BIN="$MBEDTLS_BASE/programs/test/udp_proxy"
-SRV_BIN="$MBEDTLS_BASE/programs/ssl/ssl_server2"
-
-: ${VERBOSE:=0}
-
-stop_proxy() {
-    if [ -n "${tpxy_pid:-}" ]; then
-        echo
-        echo "  * Killing proxy (pid $tpxy_pid) ..."
-        kill $tpxy_pid
-    fi
-}
-
-stop_server() {
-    if [ -n "${srv_pid:-}" ]; then
-        echo
-        echo "  * Killing server (pid $srv_pid) ..."
-        kill $srv_pid >/dev/null 2>/dev/null
-    fi
-}
-
-cleanup() {
-    stop_server
-    stop_proxy
-    exit 129
-}
-
-trap cleanup INT TERM HUP
-
-# Extract the proxy parameters
-tpxy_cmd_snippet='"$TPXY_BIN"'
-while [ $# -ne 0 ] && [ "$1" != "--" ]; do
-    tail="$1" quoted=""
-    while [ -n "$tail" ]; do
-        case "$tail" in
-            *\'*) quoted="${quoted}${tail%%\'*}'\\''" tail="${tail#*\'}";;
-            *) quoted="${quoted}${tail}"; tail=; false;;
-        esac
-    done
-    tpxy_cmd_snippet="$tpxy_cmd_snippet '$quoted'"
-    shift
-done
-unset tail quoted
-if [ $# -eq 0 ]; then
-    echo "  * No server arguments (must be preceded by \" -- \") - exit"
-    exit 3
-fi
-shift
-
-dtls_enabled=
-ipv6_in_use=
-server_port_orig=
-server_addr_orig=
-for param; do
-    case "$param" in
-        server_port=*) server_port_orig="${param#*=}";;
-        server_addr=*:*) server_addr_orig="${param#*=}"; ipv6_in_use=1;;
-        server_addr=*) server_addr_orig="${param#*=}";;
-        dtls=[!0]*) dtls_enabled=1;;
-    esac
-done
-
-if [ -z "$dtls_enabled" ] || [ -n "$ipv6_in_use" ]; then
-    echo >&2 "$0: Couldn't find DTLS enabling, or IPv6 is in use - immediate fallback to server application..."
-    if [ $VERBOSE -gt 0 ]; then
-        echo "[ $SRV_BIN $* ]"
-    fi
-    exec "$SRV_BIN" "$@"
-fi
-
-if [ -z "$server_port_orig" ]; then
-    server_port_orig=4433
-fi
-echo "  * Server port:       $server_port_orig"
-tpxy_cmd_snippet="$tpxy_cmd_snippet \"listen_port=\$server_port_orig\""
-tpxy_cmd_snippet="$tpxy_cmd_snippet \"server_port=\$server_port\""
-
-if [ -n "$server_addr_orig" ]; then
-    echo "  * Server address:    $server_addr_orig"
-    tpxy_cmd_snippet="$tpxy_cmd_snippet \"server_addr=\$server_addr_orig\""
-    tpxy_cmd_snippet="$tpxy_cmd_snippet \"listen_addr=\$server_addr_orig\""
-fi
-
-server_port=$(( server_port_orig + 1 ))
-set -- "$@" "server_port=$server_port"
-echo "  * Intermediate port: $server_port"
-
-echo "  * Start proxy in background ..."
-if [ $VERBOSE -gt 0 ]; then
-    echo "[ $tpxy_cmd_snippet ]"
-fi
-eval exec "$tpxy_cmd_snippet" >/dev/null 2>&1 &
-tpxy_pid=$!
-
-if [ $VERBOSE -gt 0 ]; then
-    echo "  * Proxy ID:          $TPXY_PID"
-fi
-
-echo "  * Starting server ..."
-if [ $VERBOSE -gt 0 ]; then
-    echo "[ $SRV_BIN $* ]"
-fi
-
-exec "$SRV_BIN" "$@" >&2 &
-srv_pid=$!
-
-wait $srv_pid
-
-stop_proxy
-return 0
diff --git a/programs/util/CMakeLists.txt b/programs/util/CMakeLists.txt
index f9b6604..4c3fb0d 100644
--- a/programs/util/CMakeLists.txt
+++ b/programs/util/CMakeLists.txt
@@ -1,5 +1,5 @@
 set(libs
-    mbedtls
+    mbedcrypto
 )
 
 add_executable(strerror strerror.c)
diff --git a/programs/x509/CMakeLists.txt b/programs/x509/CMakeLists.txt
deleted file mode 100644
index 39b8b5b..0000000
--- a/programs/x509/CMakeLists.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-set(libs
-    mbedtls
-)
-
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
-if(ENABLE_ZLIB_SUPPORT)
-    set(libs ${libs} ${ZLIB_LIBRARIES})
-endif(ENABLE_ZLIB_SUPPORT)
-
-add_executable(cert_app cert_app.c)
-target_link_libraries(cert_app ${libs})
-
-add_executable(crl_app crl_app.c)
-target_link_libraries(crl_app ${libs})
-
-add_executable(req_app req_app.c)
-target_link_libraries(req_app ${libs})
-
-add_executable(cert_req cert_req.c)
-target_link_libraries(cert_req ${libs})
-
-add_executable(cert_write cert_write.c)
-target_link_libraries(cert_write ${libs})
-
-install(TARGETS cert_app crl_app req_app cert_req cert_write
-        DESTINATION "bin"
-        PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
diff --git a/programs/x509/cert_app.c b/programs/x509/cert_app.c
deleted file mode 100644
index 38fbd51..0000000
--- a/programs/x509/cert_app.c
+++ /dev/null
@@ -1,515 +0,0 @@
-/*
- *  Certificate reading application
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_time            time
-#define mbedtls_time_t          time_t
-#define mbedtls_fprintf         fprintf
-#define mbedtls_printf          printf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif /* MBEDTLS_PLATFORM_C */
-
-#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_ENTROPY_C) ||  \
-    !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_CLI_C) || \
-    !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_RSA_C) ||         \
-    !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_FS_IO) ||  \
-    !defined(MBEDTLS_CTR_DRBG_C)
-int main( void )
-{
-    mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_ENTROPY_C and/or "
-           "MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_CLI_C and/or "
-           "MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
-           "MBEDTLS_X509_CRT_PARSE_C and/or MBEDTLS_FS_IO and/or "
-           "MBEDTLS_CTR_DRBG_C not defined.\n");
-    return( 0 );
-}
-#else
-
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/x509.h"
-#include "mbedtls/debug.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define MODE_NONE               0
-#define MODE_FILE               1
-#define MODE_SSL                2
-
-#define DFL_MODE                MODE_NONE
-#define DFL_FILENAME            "cert.crt"
-#define DFL_CA_FILE             ""
-#define DFL_CRL_FILE            ""
-#define DFL_CA_PATH             ""
-#define DFL_SERVER_NAME         "localhost"
-#define DFL_SERVER_PORT         "4433"
-#define DFL_DEBUG_LEVEL         0
-#define DFL_PERMISSIVE          0
-
-#define USAGE_IO \
-    "    ca_file=%%s          The single file containing the top-level CA(s) you fully trust\n" \
-    "                        default: \"\" (none)\n" \
-    "    crl_file=%%s         The single CRL file you want to use\n" \
-    "                        default: \"\" (none)\n" \
-    "    ca_path=%%s          The path containing the top-level CA(s) you fully trust\n" \
-    "                        default: \"\" (none) (overrides ca_file)\n"
-
-#define USAGE \
-    "\n usage: cert_app param=<>...\n"                  \
-    "\n acceptable parameters:\n"                       \
-    "    mode=file|ssl       default: none\n"           \
-    "    filename=%%s         default: cert.crt\n"      \
-    USAGE_IO                                            \
-    "    server_name=%%s      default: localhost\n"     \
-    "    server_port=%%d      default: 4433\n"          \
-    "    debug_level=%%d      default: 0 (disabled)\n"  \
-    "    permissive=%%d       default: 0 (disabled)\n"  \
-    "\n"
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#define mbedtls_exit            exit
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-/*
- * global options
- */
-struct options
-{
-    int mode;                   /* the mode to run the application in   */
-    const char *filename;       /* filename of the certificate file     */
-    const char *ca_file;        /* the file with the CA certificate(s)  */
-    const char *crl_file;       /* the file with the CRL to use         */
-    const char *ca_path;        /* the path with the CA certificate(s) reside */
-    const char *server_name;    /* hostname of the server (client only) */
-    const char *server_port;    /* port on which the ssl service runs   */
-    int debug_level;            /* level of debugging                   */
-    int permissive;             /* permissive parsing                   */
-} opt;
-
-static void my_debug( void *ctx, int level,
-                      const char *file, int line,
-                      const char *str )
-{
-    ((void) level);
-
-    mbedtls_fprintf( (FILE *) ctx, "%s:%04d: %s", file, line, str );
-    fflush(  (FILE *) ctx  );
-}
-
-static int my_verify( void *data, mbedtls_x509_crt *crt, int depth, uint32_t *flags )
-{
-    char buf[1024];
-    ((void) data);
-
-    mbedtls_printf( "\nVerify requested for (Depth %d):\n", depth );
-    mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt );
-    mbedtls_printf( "%s", buf );
-
-    if ( ( *flags ) == 0 )
-        mbedtls_printf( "  This certificate has no flags\n" );
-    else
-    {
-        mbedtls_x509_crt_verify_info( buf, sizeof( buf ), "  ! ", *flags );
-        mbedtls_printf( "%s\n", buf );
-    }
-
-    return( 0 );
-}
-
-int main( int argc, char *argv[] )
-{
-    int ret = 1;
-    int exit_code = MBEDTLS_EXIT_FAILURE;
-    mbedtls_net_context server_fd;
-    unsigned char buf[1024];
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    mbedtls_ssl_context ssl;
-    mbedtls_ssl_config conf;
-    mbedtls_x509_crt cacert;
-    mbedtls_x509_crl cacrl;
-    int i, j;
-    uint32_t flags;
-    int verify = 0;
-    char *p, *q;
-    const char *pers = "cert_app";
-
-    /*
-     * Set to sane values
-     */
-    mbedtls_net_init( &server_fd );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-    mbedtls_x509_crt_init( &cacert );
-#if defined(MBEDTLS_X509_CRL_PARSE_C)
-    mbedtls_x509_crl_init( &cacrl );
-#else
-    /* Zeroize structure as CRL parsing is not supported and we have to pass
-       it to the verify function */
-    memset( &cacrl, 0, sizeof(mbedtls_x509_crl) );
-#endif
-
-    if( argc == 0 )
-    {
-    usage:
-        mbedtls_printf( USAGE );
-        goto exit;
-    }
-
-    opt.mode                = DFL_MODE;
-    opt.filename            = DFL_FILENAME;
-    opt.ca_file             = DFL_CA_FILE;
-    opt.crl_file            = DFL_CRL_FILE;
-    opt.ca_path             = DFL_CA_PATH;
-    opt.server_name         = DFL_SERVER_NAME;
-    opt.server_port         = DFL_SERVER_PORT;
-    opt.debug_level         = DFL_DEBUG_LEVEL;
-    opt.permissive          = DFL_PERMISSIVE;
-
-    for( i = 1; i < argc; i++ )
-    {
-        p = argv[i];
-        if( ( q = strchr( p, '=' ) ) == NULL )
-            goto usage;
-        *q++ = '\0';
-
-        for( j = 0; p + j < q; j++ )
-        {
-            if( argv[i][j] >= 'A' && argv[i][j] <= 'Z' )
-                argv[i][j] |= 0x20;
-        }
-
-        if( strcmp( p, "mode" ) == 0 )
-        {
-            if( strcmp( q, "file" ) == 0 )
-                opt.mode = MODE_FILE;
-            else if( strcmp( q, "ssl" ) == 0 )
-                opt.mode = MODE_SSL;
-            else
-                goto usage;
-        }
-        else if( strcmp( p, "filename" ) == 0 )
-            opt.filename = q;
-        else if( strcmp( p, "ca_file" ) == 0 )
-            opt.ca_file = q;
-        else if( strcmp( p, "crl_file" ) == 0 )
-            opt.crl_file = q;
-        else if( strcmp( p, "ca_path" ) == 0 )
-            opt.ca_path = q;
-        else if( strcmp( p, "server_name" ) == 0 )
-            opt.server_name = q;
-        else if( strcmp( p, "server_port" ) == 0 )
-            opt.server_port = q;
-        else if( strcmp( p, "debug_level" ) == 0 )
-        {
-            opt.debug_level = atoi( q );
-            if( opt.debug_level < 0 || opt.debug_level > 65535 )
-                goto usage;
-        }
-        else if( strcmp( p, "permissive" ) == 0 )
-        {
-            opt.permissive = atoi( q );
-            if( opt.permissive < 0 || opt.permissive > 1 )
-                goto usage;
-        }
-        else
-            goto usage;
-    }
-
-    /*
-     * 1.1. Load the trusted CA
-     */
-    mbedtls_printf( "  . Loading the CA root certificate ..." );
-    fflush( stdout );
-
-    if( strlen( opt.ca_path ) )
-    {
-        if( ( ret = mbedtls_x509_crt_parse_path( &cacert, opt.ca_path ) ) < 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse_path returned -0x%x\n\n", -ret );
-            goto exit;
-        }
-
-        verify = 1;
-    }
-    else if( strlen( opt.ca_file ) )
-    {
-        if( ( ret = mbedtls_x509_crt_parse_file( &cacert, opt.ca_file ) ) < 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse_file returned -0x%x\n\n", -ret );
-            goto exit;
-        }
-
-        verify = 1;
-    }
-
-    mbedtls_printf( " ok (%d skipped)\n", ret );
-
-#if defined(MBEDTLS_X509_CRL_PARSE_C)
-    if( strlen( opt.crl_file ) )
-    {
-        if( ( ret = mbedtls_x509_crl_parse_file( &cacrl, opt.crl_file ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_x509_crl_parse returned -0x%x\n\n", -ret );
-            goto exit;
-        }
-
-        verify = 1;
-    }
-#endif
-
-    if( opt.mode == MODE_FILE )
-    {
-        mbedtls_x509_crt crt;
-        mbedtls_x509_crt *cur = &crt;
-        mbedtls_x509_crt_init( &crt );
-
-        /*
-         * 1.1. Load the certificate(s)
-         */
-        mbedtls_printf( "\n  . Loading the certificate(s) ..." );
-        fflush( stdout );
-
-        ret = mbedtls_x509_crt_parse_file( &crt, opt.filename );
-
-        if( ret < 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse_file returned %d\n\n", ret );
-            mbedtls_x509_crt_free( &crt );
-            goto exit;
-        }
-
-        if( opt.permissive == 0 && ret > 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse failed to parse %d certificates\n\n", ret );
-            mbedtls_x509_crt_free( &crt );
-            goto exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-
-        /*
-         * 1.2 Print the certificate(s)
-         */
-        while( cur != NULL )
-        {
-            mbedtls_printf( "  . Peer certificate information    ...\n" );
-            ret = mbedtls_x509_crt_info( (char *) buf, sizeof( buf ) - 1, "      ",
-                                 cur );
-            if( ret == -1 )
-            {
-                mbedtls_printf( " failed\n  !  mbedtls_x509_crt_info returned %d\n\n", ret );
-                mbedtls_x509_crt_free( &crt );
-                goto exit;
-            }
-
-            mbedtls_printf( "%s\n", buf );
-
-            cur = cur->next;
-        }
-
-        /*
-         * 1.3 Verify the certificate
-         */
-        if( verify )
-        {
-            mbedtls_printf( "  . Verifying X.509 certificate..." );
-
-            if( ( ret = mbedtls_x509_crt_verify( &crt, &cacert, &cacrl, NULL, &flags,
-                                         my_verify, NULL ) ) != 0 )
-            {
-                char vrfy_buf[512];
-
-                mbedtls_printf( " failed\n" );
-
-                mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ), "  ! ", flags );
-
-                mbedtls_printf( "%s\n", vrfy_buf );
-            }
-            else
-                mbedtls_printf( " ok\n" );
-        }
-
-        mbedtls_x509_crt_free( &crt );
-    }
-    else if( opt.mode == MODE_SSL )
-    {
-        /*
-         * 1. Initialize the RNG and the session data
-         */
-        mbedtls_printf( "\n  . Seeding the random number generator..." );
-        fflush( stdout );
-
-        mbedtls_entropy_init( &entropy );
-        if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                                   (const unsigned char *) pers,
-                                   strlen( pers ) ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret );
-            goto ssl_exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-
-#if defined(MBEDTLS_DEBUG_C)
-        mbedtls_debug_set_threshold( opt.debug_level );
-#endif
-
-        /*
-         * 2. Start the connection
-         */
-        mbedtls_printf( "  . SSL connection to tcp/%s/%s...", opt.server_name,
-                                                              opt.server_port );
-        fflush( stdout );
-
-        if( ( ret = mbedtls_net_connect( &server_fd, opt.server_name,
-                                 opt.server_port, MBEDTLS_NET_PROTO_TCP ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_net_connect returned %d\n\n", ret );
-            goto ssl_exit;
-        }
-
-        /*
-         * 3. Setup stuff
-         */
-        if( ( ret = mbedtls_ssl_config_defaults( &conf,
-                        MBEDTLS_SSL_IS_CLIENT,
-                        MBEDTLS_SSL_TRANSPORT_STREAM,
-                        MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_config_defaults returned %d\n\n", ret );
-            goto exit;
-        }
-
-        if( verify )
-        {
-            mbedtls_ssl_conf_authmode( &conf, MBEDTLS_SSL_VERIFY_REQUIRED );
-            mbedtls_ssl_conf_ca_chain( &conf, &cacert, NULL );
-            mbedtls_ssl_conf_verify( &conf, my_verify, NULL );
-        }
-        else
-            mbedtls_ssl_conf_authmode( &conf, MBEDTLS_SSL_VERIFY_NONE );
-
-        mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
-        mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
-
-        if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret );
-            goto ssl_exit;
-        }
-
-        if( ( ret = mbedtls_ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n", ret );
-            goto ssl_exit;
-        }
-
-        mbedtls_ssl_set_bio( &ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, NULL );
-
-        /*
-         * 4. Handshake
-         */
-        while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
-        {
-            if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-            {
-                mbedtls_printf( " failed\n  ! mbedtls_ssl_handshake returned %d\n\n", ret );
-                goto ssl_exit;
-            }
-        }
-
-        mbedtls_printf( " ok\n" );
-
-        /*
-         * 5. Print the certificate
-         */
-#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-        mbedtls_printf( "  . Peer certificate information    ... skipped\n" );
-#else
-        mbedtls_printf( "  . Peer certificate information    ...\n" );
-        ret = mbedtls_x509_crt_info( (char *) buf, sizeof( buf ) - 1, "      ",
-                                     mbedtls_ssl_get_peer_cert( &ssl ) );
-        if( ret == -1 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_x509_crt_info returned %d\n\n", ret );
-            goto ssl_exit;
-        }
-
-        mbedtls_printf( "%s\n", buf );
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-
-        mbedtls_ssl_close_notify( &ssl );
-
-ssl_exit:
-        mbedtls_ssl_free( &ssl );
-        mbedtls_ssl_config_free( &conf );
-    }
-    else
-        goto usage;
-
-    exit_code = MBEDTLS_EXIT_SUCCESS;
-
-exit:
-
-    mbedtls_net_free( &server_fd );
-    mbedtls_x509_crt_free( &cacert );
-#if defined(MBEDTLS_X509_CRL_PARSE_C)
-    mbedtls_x509_crl_free( &cacrl );
-#endif
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( exit_code );
-}
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_SSL_TLS_C &&
-          MBEDTLS_SSL_CLI_C && MBEDTLS_NET_C && MBEDTLS_RSA_C &&
-          MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_FS_IO && MBEDTLS_CTR_DRBG_C */
diff --git a/programs/x509/cert_req.c b/programs/x509/cert_req.c
deleted file mode 100644
index d25ad4c..0000000
--- a/programs/x509/cert_req.c
+++ /dev/null
@@ -1,453 +0,0 @@
-/*
- *  Certificate request generation
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_printf          printf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif /* MBEDTLS_PLATFORM_C */
-
-#if !defined(MBEDTLS_X509_CSR_WRITE_C) || !defined(MBEDTLS_FS_IO) ||  \
-    !defined(MBEDTLS_PK_PARSE_C) || !defined(MBEDTLS_SHA256_C) || \
-    !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C) || \
-    !defined(MBEDTLS_PEM_WRITE_C)
-int main( void )
-{
-    mbedtls_printf( "MBEDTLS_X509_CSR_WRITE_C and/or MBEDTLS_FS_IO and/or "
-            "MBEDTLS_PK_PARSE_C and/or MBEDTLS_SHA256_C and/or "
-            "MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C "
-            "not defined.\n");
-    return( 0 );
-}
-#else
-
-#include "mbedtls/x509_csr.h"
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/error.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define DFL_FILENAME            "keyfile.key"
-#define DFL_PASSWORD            NULL
-#define DFL_DEBUG_LEVEL         0
-#define DFL_OUTPUT_FILENAME     "cert.req"
-#define DFL_SUBJECT_NAME        "CN=Cert,O=mbed TLS,C=UK"
-#define DFL_KEY_USAGE           0
-#define DFL_FORCE_KEY_USAGE     0
-#define DFL_NS_CERT_TYPE        0
-#define DFL_FORCE_NS_CERT_TYPE  0
-#define DFL_MD_ALG              MBEDTLS_MD_SHA256
-
-#define USAGE \
-    "\n usage: cert_req param=<>...\n"                  \
-    "\n acceptable parameters:\n"                       \
-    "    filename=%%s         default: keyfile.key\n"   \
-    "    password=%%s         default: NULL\n"          \
-    "    debug_level=%%d      default: 0 (disabled)\n"  \
-    "    output_file=%%s      default: cert.req\n"      \
-    "    subject_name=%%s     default: CN=Cert,O=mbed TLS,C=UK\n"   \
-    "    key_usage=%%s        default: (empty)\n"       \
-    "                        Comma-separated-list of values:\n"     \
-    "                          digital_signature\n"     \
-    "                          non_repudiation\n"       \
-    "                          key_encipherment\n"      \
-    "                          data_encipherment\n"     \
-    "                          key_agreement\n"         \
-    "                          key_cert_sign\n"  \
-    "                          crl_sign\n"              \
-    "    force_key_usage=0/1  default: off\n"           \
-    "                          Add KeyUsage even if it is empty\n"  \
-    "    ns_cert_type=%%s     default: (empty)\n"       \
-    "                        Comma-separated-list of values:\n"     \
-    "                          ssl_client\n"            \
-    "                          ssl_server\n"            \
-    "                          email\n"                 \
-    "                          object_signing\n"        \
-    "                          ssl_ca\n"                \
-    "                          email_ca\n"              \
-    "                          object_signing_ca\n"     \
-    "    force_ns_cert_type=0/1 default: off\n"         \
-    "                          Add NsCertType even if it is empty\n"    \
-    "    md=%%s               default: SHA256\n"       \
-    "                          possible values:\n"     \
-    "                          MD4, MD5, SHA1\n"       \
-    "                          SHA224, SHA256\n"       \
-    "                          SHA384, SHA512\n"       \
-    "\n"
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-/*
- * global options
- */
-struct options
-{
-    const char *filename;       /* filename of the key file             */
-    const char *password;       /* password for the key file            */
-    int debug_level;            /* level of debugging                   */
-    const char *output_file;    /* where to store the constructed key file  */
-    const char *subject_name;   /* subject name for certificate request */
-    unsigned char key_usage;    /* key usage flags                      */
-    int force_key_usage;        /* Force adding the KeyUsage extension  */
-    unsigned char ns_cert_type; /* NS cert type                         */
-    int force_ns_cert_type;     /* Force adding NsCertType extension    */
-    mbedtls_md_type_t md_alg;   /* Hash algorithm used for signature.   */
-} opt;
-
-int write_certificate_request( mbedtls_x509write_csr *req, const char *output_file,
-                               int (*f_rng)(void *, unsigned char *, size_t),
-                               void *p_rng )
-{
-    int ret;
-    FILE *f;
-    unsigned char output_buf[4096];
-    size_t len = 0;
-
-    memset( output_buf, 0, 4096 );
-    if( ( ret = mbedtls_x509write_csr_pem( req, output_buf, 4096, f_rng, p_rng ) ) < 0 )
-        return( ret );
-
-    len = strlen( (char *) output_buf );
-
-    if( ( f = fopen( output_file, "w" ) ) == NULL )
-        return( -1 );
-
-    if( fwrite( output_buf, 1, len, f ) != len )
-    {
-        fclose( f );
-        return( -1 );
-    }
-
-    fclose( f );
-
-    return( 0 );
-}
-
-int main( int argc, char *argv[] )
-{
-    int ret = 1;
-    int exit_code = MBEDTLS_EXIT_FAILURE;
-    mbedtls_pk_context key;
-    char buf[1024];
-    int i;
-    char *p, *q, *r;
-    mbedtls_x509write_csr req;
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    const char *pers = "csr example app";
-
-    /*
-     * Set to sane values
-     */
-    mbedtls_x509write_csr_init( &req );
-    mbedtls_pk_init( &key );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-    memset( buf, 0, sizeof( buf ) );
-
-    if( argc == 0 )
-    {
-    usage:
-        mbedtls_printf( USAGE );
-        goto exit;
-    }
-
-    opt.filename            = DFL_FILENAME;
-    opt.password            = DFL_PASSWORD;
-    opt.debug_level         = DFL_DEBUG_LEVEL;
-    opt.output_file         = DFL_OUTPUT_FILENAME;
-    opt.subject_name        = DFL_SUBJECT_NAME;
-    opt.key_usage           = DFL_KEY_USAGE;
-    opt.force_key_usage     = DFL_FORCE_KEY_USAGE;
-    opt.ns_cert_type        = DFL_NS_CERT_TYPE;
-    opt.force_ns_cert_type  = DFL_FORCE_NS_CERT_TYPE;
-    opt.md_alg              = DFL_MD_ALG;
-
-    for( i = 1; i < argc; i++ )
-    {
-
-        p = argv[i];
-        if( ( q = strchr( p, '=' ) ) == NULL )
-            goto usage;
-        *q++ = '\0';
-
-        if( strcmp( p, "filename" ) == 0 )
-            opt.filename = q;
-        else if( strcmp( p, "password" ) == 0 )
-            opt.password = q;
-        else if( strcmp( p, "output_file" ) == 0 )
-            opt.output_file = q;
-        else if( strcmp( p, "debug_level" ) == 0 )
-        {
-            opt.debug_level = atoi( q );
-            if( opt.debug_level < 0 || opt.debug_level > 65535 )
-                goto usage;
-        }
-        else if( strcmp( p, "subject_name" ) == 0 )
-        {
-            opt.subject_name = q;
-        }
-        else if( strcmp( p, "md" ) == 0 )
-        {
-            if( strcmp( q, "SHA256" ) == 0 )
-            {
-                opt.md_alg = MBEDTLS_MD_SHA256;
-            }
-            else if( strcmp( q, "SHA224" ) == 0 )
-            {
-                opt.md_alg = MBEDTLS_MD_SHA224;
-            }
-            else
-#if defined(MBEDTLS_MD5_C)
-            if( strcmp( q, "MD5" ) == 0 )
-            {
-                opt.md_alg = MBEDTLS_MD_MD5;
-            }
-            else
-#endif /* MBEDTLS_MD5_C */
-#if defined(MBEDTLS_MD4_C)
-            if( strcmp( q, "MD4" ) == 0 )
-            {
-                opt.md_alg = MBEDTLS_MD_MD4;
-            }
-            else
-#endif /* MBEDTLS_MD5_C */
-#if defined(MBEDTLS_SHA1_C)
-            if( strcmp( q, "SHA1" ) == 0 )
-            {
-                opt.md_alg = MBEDTLS_MD_SHA1;
-            }
-            else
-#endif /* MBEDTLS_SHA1_C */
-#if defined(MBEDTLS_SHA512_C)
-            if( strcmp( q, "SHA384" ) == 0 )
-            {
-                opt.md_alg = MBEDTLS_MD_SHA384;
-            }
-            else
-            if( strcmp( q, "SHA512" ) == 0 )
-            {
-                opt.md_alg = MBEDTLS_MD_SHA512;
-            }
-            else
-#endif /* MBEDTLS_SHA512_C */
-            {
-                goto usage;
-            }
-        }
-        else if( strcmp( p, "key_usage" ) == 0 )
-        {
-            while( q != NULL )
-            {
-                if( ( r = strchr( q, ',' ) ) != NULL )
-                    *r++ = '\0';
-
-                if( strcmp( q, "digital_signature" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_DIGITAL_SIGNATURE;
-                else if( strcmp( q, "non_repudiation" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_NON_REPUDIATION;
-                else if( strcmp( q, "key_encipherment" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_KEY_ENCIPHERMENT;
-                else if( strcmp( q, "data_encipherment" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_DATA_ENCIPHERMENT;
-                else if( strcmp( q, "key_agreement" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_KEY_AGREEMENT;
-                else if( strcmp( q, "key_cert_sign" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_KEY_CERT_SIGN;
-                else if( strcmp( q, "crl_sign" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_CRL_SIGN;
-                else
-                    goto usage;
-
-                q = r;
-            }
-        }
-        else if( strcmp( p, "force_key_usage" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0: opt.force_key_usage = 0; break;
-                case 1: opt.force_key_usage = 1; break;
-                default: goto usage;
-            }
-        }
-        else if( strcmp( p, "ns_cert_type" ) == 0 )
-        {
-            while( q != NULL )
-            {
-                if( ( r = strchr( q, ',' ) ) != NULL )
-                    *r++ = '\0';
-
-                if( strcmp( q, "ssl_client" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT;
-                else if( strcmp( q, "ssl_server" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER;
-                else if( strcmp( q, "email" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_EMAIL;
-                else if( strcmp( q, "object_signing" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING;
-                else if( strcmp( q, "ssl_ca" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_SSL_CA;
-                else if( strcmp( q, "email_ca" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA;
-                else if( strcmp( q, "object_signing_ca" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA;
-                else
-                    goto usage;
-
-                q = r;
-            }
-        }
-        else if( strcmp( p, "force_ns_cert_type" ) == 0 )
-        {
-            switch( atoi( q ) )
-            {
-                case 0: opt.force_ns_cert_type = 0; break;
-                case 1: opt.force_ns_cert_type = 1; break;
-                default: goto usage;
-            }
-        }
-        else
-            goto usage;
-    }
-
-    mbedtls_x509write_csr_set_md_alg( &req, opt.md_alg );
-
-    if( opt.key_usage || opt.force_key_usage == 1 )
-        mbedtls_x509write_csr_set_key_usage( &req, opt.key_usage );
-
-    if( opt.ns_cert_type || opt.force_ns_cert_type == 1 )
-        mbedtls_x509write_csr_set_ns_cert_type( &req, opt.ns_cert_type );
-
-    /*
-     * 0. Seed the PRNG
-     */
-    mbedtls_printf( "  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    mbedtls_entropy_init( &entropy );
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_ctr_drbg_seed returned %d", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1.0. Check the subject name for validity
-     */
-    mbedtls_printf( "  . Checking subject name..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_x509write_csr_set_subject_name( &req, opt.subject_name ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509write_csr_set_subject_name returned %d", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1.1. Load the key
-     */
-    mbedtls_printf( "  . Loading the private key ..." );
-    fflush( stdout );
-
-    ret = mbedtls_pk_parse_keyfile( &key, opt.filename, opt.password );
-
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_pk_parse_keyfile returned %d", ret );
-        goto exit;
-    }
-
-    mbedtls_x509write_csr_set_key( &req, &key );
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1.2. Writing the request
-     */
-    mbedtls_printf( "  . Writing the certificate request ..." );
-    fflush( stdout );
-
-    if( ( ret = write_certificate_request( &req, opt.output_file,
-                                           mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  !  write_certifcate_request %d", ret );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    exit_code = MBEDTLS_EXIT_SUCCESS;
-
-exit:
-
-    if( exit_code != MBEDTLS_EXIT_SUCCESS )
-    {
-#ifdef MBEDTLS_ERROR_C
-        mbedtls_strerror( ret, buf, sizeof( buf ) );
-        mbedtls_printf( " - %s\n", buf );
-#else
-        mbedtls_printf("\n");
-#endif
-    }
-
-    mbedtls_x509write_csr_free( &req );
-    mbedtls_pk_free( &key );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( exit_code );
-}
-#endif /* MBEDTLS_X509_CSR_WRITE_C && MBEDTLS_PK_PARSE_C && MBEDTLS_FS_IO &&
-          MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C && MBEDTLS_PEM_WRITE_C */
diff --git a/programs/x509/cert_write.c b/programs/x509/cert_write.c
deleted file mode 100644
index cd39108..0000000
--- a/programs/x509/cert_write.c
+++ /dev/null
@@ -1,825 +0,0 @@
-/*
- *  Certificate generation and signing
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_printf          printf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif /* MBEDTLS_PLATFORM_C */
-
-#if !defined(MBEDTLS_X509_CRT_WRITE_C) || \
-    !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_FS_IO) || \
-    !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C) || \
-    !defined(MBEDTLS_ERROR_C) || !defined(MBEDTLS_SHA256_C) || \
-    !defined(MBEDTLS_PEM_WRITE_C)
-int main( void )
-{
-    mbedtls_printf( "MBEDTLS_X509_CRT_WRITE_C and/or MBEDTLS_X509_CRT_PARSE_C and/or "
-            "MBEDTLS_FS_IO and/or MBEDTLS_SHA256_C and/or "
-            "MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C and/or "
-            "MBEDTLS_ERROR_C not defined.\n");
-    return( 0 );
-}
-#else
-
-#include "mbedtls/x509_crt.h"
-#include "mbedtls/x509_csr.h"
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/md.h"
-#include "mbedtls/error.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#if defined(MBEDTLS_X509_CSR_PARSE_C)
-#define USAGE_CSR                                                           \
-    "    request_file=%%s         default: (empty)\n"                           \
-    "                            If request_file is specified, subject_key,\n"  \
-    "                            subject_pwd and subject_name are ignored!\n"
-#else
-#define USAGE_CSR ""
-#endif /* MBEDTLS_X509_CSR_PARSE_C */
-
-#define DFL_ISSUER_CRT          ""
-#define DFL_REQUEST_FILE        ""
-#define DFL_SUBJECT_KEY         "subject.key"
-#define DFL_ISSUER_KEY          "ca.key"
-#define DFL_SUBJECT_PWD         ""
-#define DFL_ISSUER_PWD          ""
-#define DFL_OUTPUT_FILENAME     "cert.crt"
-#define DFL_SUBJECT_NAME        "CN=Cert,O=mbed TLS,C=UK"
-#define DFL_ISSUER_NAME         "CN=CA,O=mbed TLS,C=UK"
-#define DFL_NOT_BEFORE          "20010101000000"
-#define DFL_NOT_AFTER           "20301231235959"
-#define DFL_SERIAL              "1"
-#define DFL_SELFSIGN            0
-#define DFL_IS_CA               0
-#define DFL_MAX_PATHLEN         -1
-#define DFL_KEY_USAGE           0
-#define DFL_NS_CERT_TYPE        0
-#define DFL_VERSION             3
-#define DFL_AUTH_IDENT          1
-#define DFL_SUBJ_IDENT          1
-#define DFL_CONSTRAINTS         1
-#define DFL_DIGEST              MBEDTLS_MD_SHA256
-
-#define USAGE \
-    "\n usage: cert_write param=<>...\n"                \
-    "\n acceptable parameters:\n"                       \
-    USAGE_CSR                                           \
-    "    subject_key=%%s          default: subject.key\n"   \
-    "    subject_pwd=%%s          default: (empty)\n"       \
-    "    subject_name=%%s         default: CN=Cert,O=mbed TLS,C=UK\n"   \
-    "\n"                                                \
-    "    issuer_crt=%%s           default: (empty)\n"       \
-    "                            If issuer_crt is specified, issuer_name is\n"  \
-    "                            ignored!\n"                \
-    "    issuer_name=%%s          default: CN=CA,O=mbed TLS,C=UK\n"     \
-    "\n"                                                \
-    "    selfsign=%%d             default: 0 (false)\n"     \
-    "                            If selfsign is enabled, issuer_name and\n" \
-    "                            issuer_key are required (issuer_crt and\n" \
-    "                            subject_* are ignored\n"   \
-    "    issuer_key=%%s           default: ca.key\n"        \
-    "    issuer_pwd=%%s           default: (empty)\n"       \
-    "    output_file=%%s          default: cert.crt\n"      \
-    "    serial=%%s               default: 1\n"             \
-    "    not_before=%%s           default: 20010101000000\n"\
-    "    not_after=%%s            default: 20301231235959\n"\
-    "    is_ca=%%d                default: 0 (disabled)\n"  \
-    "    max_pathlen=%%d          default: -1 (none)\n"     \
-    "    md=%%s                   default: SHA256\n"        \
-    "                            Supported values:\n"       \
-    "                            MD5, SHA1, SHA256, SHA512\n"\
-    "    version=%%d              default: 3\n"            \
-    "                            Possible values: 1, 2, 3\n"\
-    "    subject_identifier=%%s   default: 1\n"             \
-    "                            Possible values: 0, 1\n"   \
-    "                            (Considered for v3 only)\n"\
-    "    authority_identifier=%%s default: 1\n"             \
-    "                            Possible values: 0, 1\n"   \
-    "                            (Considered for v3 only)\n"\
-    "    basic_constraints=%%d    default: 1\n"             \
-    "                            Possible values: 0, 1\n"   \
-    "                            (Considered for v3 only)\n"\
-    "    key_usage=%%s            default: (empty)\n"       \
-    "                            Comma-separated-list of values:\n"     \
-    "                            digital_signature\n"     \
-    "                            non_repudiation\n"       \
-    "                            key_encipherment\n"      \
-    "                            data_encipherment\n"     \
-    "                            key_agreement\n"         \
-    "                            key_cert_sign\n"  \
-    "                            crl_sign\n"              \
-    "                            (Considered for v3 only)\n"\
-    "    ns_cert_type=%%s         default: (empty)\n"       \
-    "                            Comma-separated-list of values:\n"     \
-    "                            ssl_client\n"            \
-    "                            ssl_server\n"            \
-    "                            email\n"                 \
-    "                            object_signing\n"        \
-    "                            ssl_ca\n"                \
-    "                            email_ca\n"              \
-    "                            object_signing_ca\n"     \
-    "\n"
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#define mbedtls_exit            exit
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-/*
- * global options
- */
-struct options
-{
-    const char *issuer_crt;     /* filename of the issuer certificate   */
-    const char *request_file;   /* filename of the certificate request  */
-    const char *subject_key;    /* filename of the subject key file     */
-    const char *issuer_key;     /* filename of the issuer key file      */
-    const char *subject_pwd;    /* password for the subject key file    */
-    const char *issuer_pwd;     /* password for the issuer key file     */
-    const char *output_file;    /* where to store the constructed CRT   */
-    const char *subject_name;   /* subject name for certificate         */
-    const char *issuer_name;    /* issuer name for certificate          */
-    const char *not_before;     /* validity period not before           */
-    const char *not_after;      /* validity period not after            */
-    const char *serial;         /* serial number string                 */
-    int selfsign;               /* selfsign the certificate             */
-    int is_ca;                  /* is a CA certificate                  */
-    int max_pathlen;            /* maximum CA path length               */
-    int authority_identifier;   /* add authority identifier to CRT      */
-    int subject_identifier;     /* add subject identifier to CRT        */
-    int basic_constraints;      /* add basic constraints ext to CRT     */
-    int version;                /* CRT version                          */
-    mbedtls_md_type_t md;       /* Hash used for signing                */
-    unsigned char key_usage;    /* key usage flags                      */
-    unsigned char ns_cert_type; /* NS cert type                         */
-} opt;
-
-int write_certificate( mbedtls_x509write_cert *crt, const char *output_file,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng )
-{
-    int ret;
-    FILE *f;
-    unsigned char output_buf[4096];
-    size_t len = 0;
-
-    memset( output_buf, 0, 4096 );
-    if( ( ret = mbedtls_x509write_crt_pem( crt, output_buf, 4096,
-                                           f_rng, p_rng ) ) < 0 )
-        return( ret );
-
-    len = strlen( (char *) output_buf );
-
-    if( ( f = fopen( output_file, "w" ) ) == NULL )
-        return( -1 );
-
-    if( fwrite( output_buf, 1, len, f ) != len )
-    {
-        fclose( f );
-        return( -1 );
-    }
-
-    fclose( f );
-
-    return( 0 );
-}
-
-int main( int argc, char *argv[] )
-{
-    int ret = 1;
-    int exit_code = MBEDTLS_EXIT_FAILURE;
-    mbedtls_x509_crt issuer_crt;
-    mbedtls_pk_context loaded_issuer_key, loaded_subject_key;
-    mbedtls_pk_context *issuer_key = &loaded_issuer_key,
-                *subject_key = &loaded_subject_key;
-    char buf[1024];
-    char issuer_name[256];
-    int i;
-    char *p, *q, *r;
-#if defined(MBEDTLS_X509_CSR_PARSE_C)
-    char subject_name[256];
-    mbedtls_x509_csr csr;
-#endif
-    mbedtls_x509write_cert crt;
-    mbedtls_mpi serial;
-    mbedtls_entropy_context entropy;
-    mbedtls_ctr_drbg_context ctr_drbg;
-    const char *pers = "crt example app";
-
-    /*
-     * Set to sane values
-     */
-    mbedtls_x509write_crt_init( &crt );
-    mbedtls_pk_init( &loaded_issuer_key );
-    mbedtls_pk_init( &loaded_subject_key );
-    mbedtls_mpi_init( &serial );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-    mbedtls_entropy_init( &entropy );
-#if defined(MBEDTLS_X509_CSR_PARSE_C)
-    mbedtls_x509_csr_init( &csr );
-#endif
-    mbedtls_x509_crt_init( &issuer_crt );
-    memset( buf, 0, 1024 );
-
-    if( argc == 0 )
-    {
-    usage:
-        mbedtls_printf( USAGE );
-        goto exit;
-    }
-
-    opt.issuer_crt          = DFL_ISSUER_CRT;
-    opt.request_file        = DFL_REQUEST_FILE;
-    opt.subject_key         = DFL_SUBJECT_KEY;
-    opt.issuer_key          = DFL_ISSUER_KEY;
-    opt.subject_pwd         = DFL_SUBJECT_PWD;
-    opt.issuer_pwd          = DFL_ISSUER_PWD;
-    opt.output_file         = DFL_OUTPUT_FILENAME;
-    opt.subject_name        = DFL_SUBJECT_NAME;
-    opt.issuer_name         = DFL_ISSUER_NAME;
-    opt.not_before          = DFL_NOT_BEFORE;
-    opt.not_after           = DFL_NOT_AFTER;
-    opt.serial              = DFL_SERIAL;
-    opt.selfsign            = DFL_SELFSIGN;
-    opt.is_ca               = DFL_IS_CA;
-    opt.max_pathlen         = DFL_MAX_PATHLEN;
-    opt.key_usage           = DFL_KEY_USAGE;
-    opt.ns_cert_type        = DFL_NS_CERT_TYPE;
-    opt.version             = DFL_VERSION - 1;
-    opt.md                  = DFL_DIGEST;
-    opt.subject_identifier   = DFL_SUBJ_IDENT;
-    opt.authority_identifier = DFL_AUTH_IDENT;
-    opt.basic_constraints    = DFL_CONSTRAINTS;
-
-    for( i = 1; i < argc; i++ )
-    {
-
-        p = argv[i];
-        if( ( q = strchr( p, '=' ) ) == NULL )
-            goto usage;
-        *q++ = '\0';
-
-        if( strcmp( p, "request_file" ) == 0 )
-            opt.request_file = q;
-        else if( strcmp( p, "subject_key" ) == 0 )
-            opt.subject_key = q;
-        else if( strcmp( p, "issuer_key" ) == 0 )
-            opt.issuer_key = q;
-        else if( strcmp( p, "subject_pwd" ) == 0 )
-            opt.subject_pwd = q;
-        else if( strcmp( p, "issuer_pwd" ) == 0 )
-            opt.issuer_pwd = q;
-        else if( strcmp( p, "issuer_crt" ) == 0 )
-            opt.issuer_crt = q;
-        else if( strcmp( p, "output_file" ) == 0 )
-            opt.output_file = q;
-        else if( strcmp( p, "subject_name" ) == 0 )
-        {
-            opt.subject_name = q;
-        }
-        else if( strcmp( p, "issuer_name" ) == 0 )
-        {
-            opt.issuer_name = q;
-        }
-        else if( strcmp( p, "not_before" ) == 0 )
-        {
-            opt.not_before = q;
-        }
-        else if( strcmp( p, "not_after" ) == 0 )
-        {
-            opt.not_after = q;
-        }
-        else if( strcmp( p, "serial" ) == 0 )
-        {
-            opt.serial = q;
-        }
-        else if( strcmp( p, "authority_identifier" ) == 0 )
-        {
-            opt.authority_identifier = atoi( q );
-            if( opt.authority_identifier != 0 &&
-                opt.authority_identifier != 1 )
-            {
-                mbedtls_printf( "Invalid argument for option %s\n", p );
-                goto usage;
-            }
-        }
-        else if( strcmp( p, "subject_identifier" ) == 0 )
-        {
-            opt.subject_identifier = atoi( q );
-            if( opt.subject_identifier != 0 &&
-                opt.subject_identifier != 1 )
-            {
-                mbedtls_printf( "Invalid argument for option %s\n", p );
-                goto usage;
-            }
-        }
-        else if( strcmp( p, "basic_constraints" ) == 0 )
-        {
-            opt.basic_constraints = atoi( q );
-            if( opt.basic_constraints != 0 &&
-                opt.basic_constraints != 1 )
-            {
-                mbedtls_printf( "Invalid argument for option %s\n", p );
-                goto usage;
-            }
-        }
-        else if( strcmp( p, "md" ) == 0 )
-        {
-            if( strcmp( q, "SHA1" ) == 0 )
-                opt.md = MBEDTLS_MD_SHA1;
-            else if( strcmp( q, "SHA256" ) == 0 )
-                opt.md = MBEDTLS_MD_SHA256;
-            else if( strcmp( q, "SHA512" ) == 0 )
-                opt.md = MBEDTLS_MD_SHA512;
-            else if( strcmp( q, "MD5" ) == 0 )
-                opt.md = MBEDTLS_MD_MD5;
-            else
-            {
-                mbedtls_printf( "Invalid argument for option %s\n", p );
-                goto usage;
-            }
-        }
-        else if( strcmp( p, "version" ) == 0 )
-        {
-            opt.version = atoi( q );
-            if( opt.version < 1 || opt.version > 3 )
-            {
-                mbedtls_printf( "Invalid argument for option %s\n", p );
-                goto usage;
-            }
-            opt.version--;
-        }
-        else if( strcmp( p, "selfsign" ) == 0 )
-        {
-            opt.selfsign = atoi( q );
-            if( opt.selfsign < 0 || opt.selfsign > 1 )
-            {
-                mbedtls_printf( "Invalid argument for option %s\n", p );
-                goto usage;
-            }
-        }
-        else if( strcmp( p, "is_ca" ) == 0 )
-        {
-            opt.is_ca = atoi( q );
-            if( opt.is_ca < 0 || opt.is_ca > 1 )
-            {
-                mbedtls_printf( "Invalid argument for option %s\n", p );
-                goto usage;
-            }
-        }
-        else if( strcmp( p, "max_pathlen" ) == 0 )
-        {
-            opt.max_pathlen = atoi( q );
-            if( opt.max_pathlen < -1 || opt.max_pathlen > 127 )
-            {
-                mbedtls_printf( "Invalid argument for option %s\n", p );
-                goto usage;
-            }
-        }
-        else if( strcmp( p, "key_usage" ) == 0 )
-        {
-            while( q != NULL )
-            {
-                if( ( r = strchr( q, ',' ) ) != NULL )
-                    *r++ = '\0';
-
-                if( strcmp( q, "digital_signature" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_DIGITAL_SIGNATURE;
-                else if( strcmp( q, "non_repudiation" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_NON_REPUDIATION;
-                else if( strcmp( q, "key_encipherment" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_KEY_ENCIPHERMENT;
-                else if( strcmp( q, "data_encipherment" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_DATA_ENCIPHERMENT;
-                else if( strcmp( q, "key_agreement" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_KEY_AGREEMENT;
-                else if( strcmp( q, "key_cert_sign" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_KEY_CERT_SIGN;
-                else if( strcmp( q, "crl_sign" ) == 0 )
-                    opt.key_usage |= MBEDTLS_X509_KU_CRL_SIGN;
-                else
-                {
-                    mbedtls_printf( "Invalid argument for option %s\n", p );
-                    goto usage;
-                }
-
-                q = r;
-            }
-        }
-        else if( strcmp( p, "ns_cert_type" ) == 0 )
-        {
-            while( q != NULL )
-            {
-                if( ( r = strchr( q, ',' ) ) != NULL )
-                    *r++ = '\0';
-
-                if( strcmp( q, "ssl_client" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT;
-                else if( strcmp( q, "ssl_server" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER;
-                else if( strcmp( q, "email" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_EMAIL;
-                else if( strcmp( q, "object_signing" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING;
-                else if( strcmp( q, "ssl_ca" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_SSL_CA;
-                else if( strcmp( q, "email_ca" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA;
-                else if( strcmp( q, "object_signing_ca" ) == 0 )
-                    opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA;
-                else
-                {
-                    mbedtls_printf( "Invalid argument for option %s\n", p );
-                    goto usage;
-                }
-
-                q = r;
-            }
-        }
-        else
-            goto usage;
-    }
-
-    mbedtls_printf("\n");
-
-    /*
-     * 0. Seed the PRNG
-     */
-    mbedtls_printf( "  . Seeding the random number generator..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
-                               (const unsigned char *) pers,
-                               strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_strerror( ret, buf, 1024 );
-        mbedtls_printf( " failed\n  !  mbedtls_ctr_drbg_seed returned %d - %s\n",
-                        ret, buf );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    // Parse serial to MPI
-    //
-    mbedtls_printf( "  . Reading serial number..." );
-    fflush( stdout );
-
-    if( ( ret = mbedtls_mpi_read_string( &serial, 10, opt.serial ) ) != 0 )
-    {
-        mbedtls_strerror( ret, buf, 1024 );
-        mbedtls_printf( " failed\n  !  mbedtls_mpi_read_string "
-                        "returned -0x%04x - %s\n\n", -ret, buf );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    // Parse issuer certificate if present
-    //
-    if( !opt.selfsign && strlen( opt.issuer_crt ) )
-    {
-        /*
-         * 1.0.a. Load the certificates
-         */
-        mbedtls_printf( "  . Loading the issuer certificate ..." );
-        fflush( stdout );
-
-        if( ( ret = mbedtls_x509_crt_parse_file( &issuer_crt, opt.issuer_crt ) ) != 0 )
-        {
-            mbedtls_strerror( ret, buf, 1024 );
-            mbedtls_printf( " failed\n  !  mbedtls_x509_crt_parse_file "
-                            "returned -0x%04x - %s\n\n", -ret, buf );
-            goto exit;
-        }
-
-        ret = mbedtls_x509_dn_gets( issuer_name, sizeof(issuer_name),
-                                 &issuer_crt.subject );
-        if( ret < 0 )
-        {
-            mbedtls_strerror( ret, buf, 1024 );
-            mbedtls_printf( " failed\n  !  mbedtls_x509_dn_gets "
-                            "returned -0x%04x - %s\n\n", -ret, buf );
-            goto exit;
-        }
-
-        opt.issuer_name = issuer_name;
-
-        mbedtls_printf( " ok\n" );
-    }
-
-#if defined(MBEDTLS_X509_CSR_PARSE_C)
-    // Parse certificate request if present
-    //
-    if( !opt.selfsign && strlen( opt.request_file ) )
-    {
-        /*
-         * 1.0.b. Load the CSR
-         */
-        mbedtls_printf( "  . Loading the certificate request ..." );
-        fflush( stdout );
-
-        if( ( ret = mbedtls_x509_csr_parse_file( &csr, opt.request_file ) ) != 0 )
-        {
-            mbedtls_strerror( ret, buf, 1024 );
-            mbedtls_printf( " failed\n  !  mbedtls_x509_csr_parse_file "
-                            "returned -0x%04x - %s\n\n", -ret, buf );
-            goto exit;
-        }
-
-        ret = mbedtls_x509_dn_gets( subject_name, sizeof(subject_name),
-                                 &csr.subject );
-        if( ret < 0 )
-        {
-            mbedtls_strerror( ret, buf, 1024 );
-            mbedtls_printf( " failed\n  !  mbedtls_x509_dn_gets "
-                            "returned -0x%04x - %s\n\n", -ret, buf );
-            goto exit;
-        }
-
-        opt.subject_name = subject_name;
-        subject_key = &csr.pk;
-
-        mbedtls_printf( " ok\n" );
-    }
-#endif /* MBEDTLS_X509_CSR_PARSE_C */
-
-    /*
-     * 1.1. Load the keys
-     */
-    if( !opt.selfsign && !strlen( opt.request_file ) )
-    {
-        mbedtls_printf( "  . Loading the subject key ..." );
-        fflush( stdout );
-
-        ret = mbedtls_pk_parse_keyfile( &loaded_subject_key, opt.subject_key,
-                                 opt.subject_pwd );
-        if( ret != 0 )
-        {
-            mbedtls_strerror( ret, buf, 1024 );
-            mbedtls_printf( " failed\n  !  mbedtls_pk_parse_keyfile "
-                            "returned -0x%04x - %s\n\n", -ret, buf );
-            goto exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-    }
-
-    mbedtls_printf( "  . Loading the issuer key ..." );
-    fflush( stdout );
-
-    ret = mbedtls_pk_parse_keyfile( &loaded_issuer_key, opt.issuer_key,
-                             opt.issuer_pwd );
-    if( ret != 0 )
-    {
-        mbedtls_strerror( ret, buf, 1024 );
-        mbedtls_printf( " failed\n  !  mbedtls_pk_parse_keyfile "
-                        "returned -x%02x - %s\n\n", -ret, buf );
-        goto exit;
-    }
-
-    // Check if key and issuer certificate match
-    //
-    if( strlen( opt.issuer_crt ) )
-    {
-        if( mbedtls_pk_check_pair( &issuer_crt.pk, issuer_key ) != 0 )
-        {
-            mbedtls_printf( " failed\n  !  issuer_key does not match "
-                            "issuer certificate\n\n" );
-            goto exit;
-        }
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    if( opt.selfsign )
-    {
-        opt.subject_name = opt.issuer_name;
-        subject_key = issuer_key;
-    }
-
-    mbedtls_x509write_crt_set_subject_key( &crt, subject_key );
-    mbedtls_x509write_crt_set_issuer_key( &crt, issuer_key );
-
-    /*
-     * 1.0. Check the names for validity
-     */
-    if( ( ret = mbedtls_x509write_crt_set_subject_name( &crt, opt.subject_name ) ) != 0 )
-    {
-        mbedtls_strerror( ret, buf, 1024 );
-        mbedtls_printf( " failed\n  !  mbedtls_x509write_crt_set_subject_name "
-                        "returned -0x%04x - %s\n\n", -ret, buf );
-        goto exit;
-    }
-
-    if( ( ret = mbedtls_x509write_crt_set_issuer_name( &crt, opt.issuer_name ) ) != 0 )
-    {
-        mbedtls_strerror( ret, buf, 1024 );
-        mbedtls_printf( " failed\n  !  mbedtls_x509write_crt_set_issuer_name "
-                        "returned -0x%04x - %s\n\n", -ret, buf );
-        goto exit;
-    }
-
-    mbedtls_printf( "  . Setting certificate values ..." );
-    fflush( stdout );
-
-    mbedtls_x509write_crt_set_version( &crt, opt.version );
-    mbedtls_x509write_crt_set_md_alg( &crt, opt.md );
-
-    ret = mbedtls_x509write_crt_set_serial( &crt, &serial );
-    if( ret != 0 )
-    {
-        mbedtls_strerror( ret, buf, 1024 );
-        mbedtls_printf( " failed\n  !  mbedtls_x509write_crt_set_serial "
-                        "returned -0x%04x - %s\n\n", -ret, buf );
-        goto exit;
-    }
-
-    ret = mbedtls_x509write_crt_set_validity( &crt, opt.not_before, opt.not_after );
-    if( ret != 0 )
-    {
-        mbedtls_strerror( ret, buf, 1024 );
-        mbedtls_printf( " failed\n  !  mbedtls_x509write_crt_set_validity "
-                        "returned -0x%04x - %s\n\n", -ret, buf );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    if( opt.version == MBEDTLS_X509_CRT_VERSION_3 &&
-        opt.basic_constraints != 0 )
-    {
-        mbedtls_printf( "  . Adding the Basic Constraints extension ..." );
-        fflush( stdout );
-
-        ret = mbedtls_x509write_crt_set_basic_constraints( &crt, opt.is_ca,
-                                                           opt.max_pathlen );
-        if( ret != 0 )
-        {
-            mbedtls_strerror( ret, buf, 1024 );
-            mbedtls_printf( " failed\n  !  x509write_crt_set_basic_contraints "
-                            "returned -0x%04x - %s\n\n", -ret, buf );
-            goto exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-    }
-
-#if defined(MBEDTLS_SHA1_C)
-    if( opt.version == MBEDTLS_X509_CRT_VERSION_3 &&
-        opt.subject_identifier != 0 )
-    {
-        mbedtls_printf( "  . Adding the Subject Key Identifier ..." );
-        fflush( stdout );
-
-        ret = mbedtls_x509write_crt_set_subject_key_identifier( &crt );
-        if( ret != 0 )
-        {
-            mbedtls_strerror( ret, buf, 1024 );
-            mbedtls_printf( " failed\n  !  mbedtls_x509write_crt_set_subject"
-                            "_key_identifier returned -0x%04x - %s\n\n",
-                            -ret, buf );
-            goto exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-    }
-
-    if( opt.version == MBEDTLS_X509_CRT_VERSION_3 &&
-        opt.authority_identifier != 0 )
-    {
-        mbedtls_printf( "  . Adding the Authority Key Identifier ..." );
-        fflush( stdout );
-
-        ret = mbedtls_x509write_crt_set_authority_key_identifier( &crt );
-        if( ret != 0 )
-        {
-            mbedtls_strerror( ret, buf, 1024 );
-            mbedtls_printf( " failed\n  !  mbedtls_x509write_crt_set_authority_"
-                            "key_identifier returned -0x%04x - %s\n\n",
-                            -ret, buf );
-            goto exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-    }
-#endif /* MBEDTLS_SHA1_C */
-
-    if( opt.version == MBEDTLS_X509_CRT_VERSION_3 &&
-        opt.key_usage != 0 )
-    {
-        mbedtls_printf( "  . Adding the Key Usage extension ..." );
-        fflush( stdout );
-
-        ret = mbedtls_x509write_crt_set_key_usage( &crt, opt.key_usage );
-        if( ret != 0 )
-        {
-            mbedtls_strerror( ret, buf, 1024 );
-            mbedtls_printf( " failed\n  !  mbedtls_x509write_crt_set_key_usage "
-                            "returned -0x%04x - %s\n\n", -ret, buf );
-            goto exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-    }
-
-    if( opt.version == MBEDTLS_X509_CRT_VERSION_3 &&
-        opt.ns_cert_type != 0 )
-    {
-        mbedtls_printf( "  . Adding the NS Cert Type extension ..." );
-        fflush( stdout );
-
-        ret = mbedtls_x509write_crt_set_ns_cert_type( &crt, opt.ns_cert_type );
-        if( ret != 0 )
-        {
-            mbedtls_strerror( ret, buf, 1024 );
-            mbedtls_printf( " failed\n  !  mbedtls_x509write_crt_set_ns_cert_type "
-                            "returned -0x%04x - %s\n\n", -ret, buf );
-            goto exit;
-        }
-
-        mbedtls_printf( " ok\n" );
-    }
-
-    /*
-     * 1.2. Writing the certificate
-     */
-    mbedtls_printf( "  . Writing the certificate..." );
-    fflush( stdout );
-
-    if( ( ret = write_certificate( &crt, opt.output_file,
-                                   mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
-    {
-        mbedtls_strerror( ret, buf, 1024 );
-        mbedtls_printf( " failed\n  !  write_certificate -0x%04x - %s\n\n",
-                        -ret, buf );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    exit_code = MBEDTLS_EXIT_SUCCESS;
-
-exit:
-#if defined(MBEDTLS_X509_CSR_PARSE_C)
-    mbedtls_x509_csr_free( &csr );
-#endif /* MBEDTLS_X509_CSR_PARSE_C */
-    mbedtls_x509_crt_free( &issuer_crt );
-    mbedtls_x509write_crt_free( &crt );
-    mbedtls_pk_free( &loaded_subject_key );
-    mbedtls_pk_free( &loaded_issuer_key );
-    mbedtls_mpi_free( &serial );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( exit_code );
-}
-#endif /* MBEDTLS_X509_CRT_WRITE_C && MBEDTLS_X509_CRT_PARSE_C &&
-          MBEDTLS_FS_IO && MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C &&
-          MBEDTLS_ERROR_C && MBEDTLS_PEM_WRITE_C */
diff --git a/programs/x509/crl_app.c b/programs/x509/crl_app.c
deleted file mode 100644
index a951570..0000000
--- a/programs/x509/crl_app.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- *  CRL reading application
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_printf          printf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif /* MBEDTLS_PLATFORM_C */
-
-#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_RSA_C) ||  \
-    !defined(MBEDTLS_X509_CRL_PARSE_C) || !defined(MBEDTLS_FS_IO)
-int main( void )
-{
-    mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_RSA_C and/or "
-           "MBEDTLS_X509_CRL_PARSE_C and/or MBEDTLS_FS_IO not defined.\n");
-    return( 0 );
-}
-#else
-
-#include "mbedtls/x509_crl.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define DFL_FILENAME            "crl.pem"
-#define DFL_DEBUG_LEVEL         0
-
-#define USAGE \
-    "\n usage: crl_app param=<>...\n"                   \
-    "\n acceptable parameters:\n"                       \
-    "    filename=%%s         default: crl.pem\n"      \
-    "\n"
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#define mbedtls_exit            exit
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-/*
- * global options
- */
-struct options
-{
-    const char *filename;       /* filename of the certificate file     */
-} opt;
-
-int main( int argc, char *argv[] )
-{
-    int ret = 1;
-    int exit_code = MBEDTLS_EXIT_FAILURE;
-    unsigned char buf[100000];
-    mbedtls_x509_crl crl;
-    int i;
-    char *p, *q;
-
-    /*
-     * Set to sane values
-     */
-    mbedtls_x509_crl_init( &crl );
-
-    if( argc == 0 )
-    {
-    usage:
-        mbedtls_printf( USAGE );
-        goto exit;
-    }
-
-    opt.filename            = DFL_FILENAME;
-
-    for( i = 1; i < argc; i++ )
-    {
-        p = argv[i];
-        if( ( q = strchr( p, '=' ) ) == NULL )
-            goto usage;
-        *q++ = '\0';
-
-        if( strcmp( p, "filename" ) == 0 )
-            opt.filename = q;
-        else
-            goto usage;
-    }
-
-    /*
-     * 1.1. Load the CRL
-     */
-    mbedtls_printf( "\n  . Loading the CRL ..." );
-    fflush( stdout );
-
-    ret = mbedtls_x509_crl_parse_file( &crl, opt.filename );
-
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crl_parse_file returned %d\n\n", ret );
-        mbedtls_x509_crl_free( &crl );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1.2 Print the CRL
-     */
-    mbedtls_printf( "  . CRL information    ...\n" );
-    ret = mbedtls_x509_crl_info( (char *) buf, sizeof( buf ) - 1, "      ", &crl );
-    if( ret == -1 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_crl_info returned %d\n\n", ret );
-        mbedtls_x509_crl_free( &crl );
-        goto exit;
-    }
-
-    mbedtls_printf( "%s\n", buf );
-
-    exit_code = MBEDTLS_EXIT_SUCCESS;
-
-exit:
-    mbedtls_x509_crl_free( &crl );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( exit_code );
-}
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_RSA_C && MBEDTLS_X509_CRL_PARSE_C &&
-          MBEDTLS_FS_IO */
diff --git a/programs/x509/req_app.c b/programs/x509/req_app.c
deleted file mode 100644
index 04ad119..0000000
--- a/programs/x509/req_app.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- *  Certificate request reading application
- *
- *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdio.h>
-#include <stdlib.h>
-#define mbedtls_printf          printf
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
-#endif /* MBEDTLS_PLATFORM_C */
-
-#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_RSA_C) ||  \
-    !defined(MBEDTLS_X509_CSR_PARSE_C) || !defined(MBEDTLS_FS_IO)
-int main( void )
-{
-    mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_RSA_C and/or "
-           "MBEDTLS_X509_CSR_PARSE_C and/or MBEDTLS_FS_IO not defined.\n");
-    return( 0 );
-}
-#else
-
-#include "mbedtls/x509_csr.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define DFL_FILENAME            "cert.req"
-#define DFL_DEBUG_LEVEL         0
-
-#define USAGE \
-    "\n usage: req_app param=<>...\n"                   \
-    "\n acceptable parameters:\n"                       \
-    "    filename=%%s         default: cert.req\n"      \
-    "\n"
-
-#if defined(MBEDTLS_CHECK_PARAMS)
-#define mbedtls_exit            exit
-void mbedtls_param_failed( const char *failure_condition,
-                           const char *file,
-                           int line )
-{
-    mbedtls_printf( "%s:%i: Input param failed - %s\n",
-                    file, line, failure_condition );
-    mbedtls_exit( MBEDTLS_EXIT_FAILURE );
-}
-#endif
-
-/*
- * global options
- */
-struct options
-{
-    const char *filename;       /* filename of the certificate request  */
-} opt;
-
-int main( int argc, char *argv[] )
-{
-    int ret = 1;
-    int exit_code = MBEDTLS_EXIT_FAILURE;
-    unsigned char buf[100000];
-    mbedtls_x509_csr csr;
-    int i;
-    char *p, *q;
-
-    /*
-     * Set to sane values
-     */
-    mbedtls_x509_csr_init( &csr );
-
-    if( argc == 0 )
-    {
-    usage:
-        mbedtls_printf( USAGE );
-        goto exit;
-    }
-
-    opt.filename            = DFL_FILENAME;
-
-    for( i = 1; i < argc; i++ )
-    {
-        p = argv[i];
-        if( ( q = strchr( p, '=' ) ) == NULL )
-            goto usage;
-        *q++ = '\0';
-
-        if( strcmp( p, "filename" ) == 0 )
-            opt.filename = q;
-        else
-            goto usage;
-    }
-
-    /*
-     * 1.1. Load the CSR
-     */
-    mbedtls_printf( "\n  . Loading the CSR ..." );
-    fflush( stdout );
-
-    ret = mbedtls_x509_csr_parse_file( &csr, opt.filename );
-
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_csr_parse_file returned %d\n\n", ret );
-        mbedtls_x509_csr_free( &csr );
-        goto exit;
-    }
-
-    mbedtls_printf( " ok\n" );
-
-    /*
-     * 1.2 Print the CSR
-     */
-    mbedtls_printf( "  . CSR information    ...\n" );
-    ret = mbedtls_x509_csr_info( (char *) buf, sizeof( buf ) - 1, "      ", &csr );
-    if( ret == -1 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_x509_csr_info returned %d\n\n", ret );
-        mbedtls_x509_csr_free( &csr );
-        goto exit;
-    }
-
-    mbedtls_printf( "%s\n", buf );
-
-    exit_code = MBEDTLS_EXIT_SUCCESS;
-
-exit:
-    mbedtls_x509_csr_free( &csr );
-
-#if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
-#endif
-
-    return( exit_code );
-}
-#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_RSA_C && MBEDTLS_X509_CSR_PARSE_C &&
-          MBEDTLS_FS_IO */
diff --git a/scripts/abi_check.py b/scripts/abi_check.py
index 7926bc8..f837f7a 100755
--- a/scripts/abi_check.py
+++ b/scripts/abi_check.py
@@ -9,10 +9,10 @@
 This script is a small wrapper around the abi-compliance-checker and
 abi-dumper tools, applying them to compare the ABI and API of the library
 files from two different Git revisions within an Mbed TLS repository.
-The results of the comparison are formatted as HTML and stored at
-a configurable location. Returns 0 on success, 1 on ABI/API non-compliance,
-and 2 if there is an error while running the script.
-Note: must be run from Mbed TLS root.
+The results of the comparison are either formatted as HTML and stored at
+a configurable location, or are given as a brief list of problems.
+Returns 0 on success, 1 on ABI/API non-compliance, and 2 if there is an error
+while running the script. Note: must be run from Mbed TLS root.
 """
 
 import os
@@ -23,30 +23,37 @@
 import argparse
 import logging
 import tempfile
+import fnmatch
+from types import SimpleNamespace
+
+import xml.etree.ElementTree as ET
 
 
 class AbiChecker(object):
     """API and ABI checker."""
 
-    def __init__(self, report_dir, old_rev, new_rev, keep_all_reports):
+    def __init__(self, old_version, new_version, configuration):
         """Instantiate the API/ABI checker.
 
-        report_dir: directory for output files
-        old_rev: reference git revision to compare against
-        new_rev: git revision to check
-        keep_all_reports: if false, delete old reports
+        old_version: RepoVersion containing details to compare against
+        new_version: RepoVersion containing details to check
+        configuration.report_dir: directory for output files
+        configuration.keep_all_reports: if false, delete old reports
+        configuration.brief: if true, output shorter report to stdout
+        configuration.skip_file: path to file containing symbols and types to skip
         """
         self.repo_path = "."
         self.log = None
-        self.setup_logger()
-        self.report_dir = os.path.abspath(report_dir)
-        self.keep_all_reports = keep_all_reports
-        self.should_keep_report_dir = os.path.isdir(self.report_dir)
-        self.old_rev = old_rev
-        self.new_rev = new_rev
-        self.mbedtls_modules = ["libmbedcrypto", "libmbedtls", "libmbedx509"]
-        self.old_dumps = {}
-        self.new_dumps = {}
+        self.verbose = configuration.verbose
+        self._setup_logger()
+        self.report_dir = os.path.abspath(configuration.report_dir)
+        self.keep_all_reports = configuration.keep_all_reports
+        self.can_remove_report_dir = not (os.path.exists(self.report_dir) or
+                                          self.keep_all_reports)
+        self.old_version = old_version
+        self.new_version = new_version
+        self.skip_file = configuration.skip_file
+        self.brief = configuration.brief
         self.git_command = "git"
         self.make_command = "make"
 
@@ -57,9 +64,12 @@
         if current_dir != root_dir:
             raise Exception("Must be run from Mbed TLS root")
 
-    def setup_logger(self):
+    def _setup_logger(self):
         self.log = logging.getLogger()
-        self.log.setLevel(logging.INFO)
+        if self.verbose:
+            self.log.setLevel(logging.DEBUG)
+        else:
+            self.log.setLevel(logging.INFO)
         self.log.addHandler(logging.StreamHandler())
 
     @staticmethod
@@ -68,155 +78,210 @@
             if not shutil.which(command):
                 raise Exception("{} not installed, aborting".format(command))
 
-    def get_clean_worktree_for_git_revision(self, git_rev):
-        """Make a separate worktree with git_rev checked out.
+    def _get_clean_worktree_for_git_revision(self, version):
+        """Make a separate worktree with version.revision checked out.
         Do not modify the current worktree."""
-        self.log.info(
-            "Checking out git worktree for revision {}".format(git_rev)
-        )
         git_worktree_path = tempfile.mkdtemp()
-        worktree_process = subprocess.Popen(
-            [self.git_command, "worktree", "add", "--detach", git_worktree_path, git_rev],
+        if version.repository:
+            self.log.debug(
+                "Checking out git worktree for revision {} from {}".format(
+                    version.revision, version.repository
+                )
+            )
+            fetch_output = subprocess.check_output(
+                [self.git_command, "fetch",
+                 version.repository, version.revision],
+                cwd=self.repo_path,
+                stderr=subprocess.STDOUT
+            )
+            self.log.debug(fetch_output.decode("utf-8"))
+            worktree_rev = "FETCH_HEAD"
+        else:
+            self.log.debug("Checking out git worktree for revision {}".format(
+                version.revision
+            ))
+            worktree_rev = version.revision
+        worktree_output = subprocess.check_output(
+            [self.git_command, "worktree", "add", "--detach",
+             git_worktree_path, worktree_rev],
             cwd=self.repo_path,
-            stdout=subprocess.PIPE,
             stderr=subprocess.STDOUT
         )
-        worktree_output, _ = worktree_process.communicate()
-        self.log.info(worktree_output.decode("utf-8"))
-        if worktree_process.returncode != 0:
-            raise Exception("Checking out worktree failed, aborting")
+        self.log.debug(worktree_output.decode("utf-8"))
         return git_worktree_path
 
-    def update_git_submodules(self, git_worktree_path):
-        process = subprocess.Popen(
+    def _update_git_submodules(self, git_worktree_path, version):
+        """If the crypto submodule is present, initialize it.
+        if version.crypto_revision exists, update it to that revision,
+        otherwise update it to the default revision"""
+        update_output = subprocess.check_output(
             [self.git_command, "submodule", "update", "--init", '--recursive'],
             cwd=git_worktree_path,
-            stdout=subprocess.PIPE,
             stderr=subprocess.STDOUT
         )
-        output, _ = process.communicate()
-        self.log.info(output.decode("utf-8"))
-        if process.returncode != 0:
-            raise Exception("git submodule update failed, aborting")
+        self.log.debug(update_output.decode("utf-8"))
+        if not (os.path.exists(os.path.join(git_worktree_path, "crypto"))
+                and version.crypto_revision):
+            return
 
-    def build_shared_libraries(self, git_worktree_path):
+        if version.crypto_repository:
+            fetch_output = subprocess.check_output(
+                [self.git_command, "fetch", version.crypto_repository,
+                 version.crypto_revision],
+                cwd=os.path.join(git_worktree_path, "crypto"),
+                stderr=subprocess.STDOUT
+            )
+            self.log.debug(fetch_output.decode("utf-8"))
+            crypto_rev = "FETCH_HEAD"
+        else:
+            crypto_rev = version.crypto_revision
+
+        checkout_output = subprocess.check_output(
+            [self.git_command, "checkout", crypto_rev],
+            cwd=os.path.join(git_worktree_path, "crypto"),
+            stderr=subprocess.STDOUT
+        )
+        self.log.debug(checkout_output.decode("utf-8"))
+
+    def _build_shared_libraries(self, git_worktree_path, version):
         """Build the shared libraries in the specified worktree."""
         my_environment = os.environ.copy()
         my_environment["CFLAGS"] = "-g -Og"
         my_environment["SHARED"] = "1"
-        make_process = subprocess.Popen(
-            self.make_command,
+        my_environment["USE_CRYPTO_SUBMODULE"] = "1"
+        make_output = subprocess.check_output(
+            [self.make_command, "lib"],
             env=my_environment,
             cwd=git_worktree_path,
-            stdout=subprocess.PIPE,
             stderr=subprocess.STDOUT
         )
-        make_output, _ = make_process.communicate()
-        self.log.info(make_output.decode("utf-8"))
-        if make_process.returncode != 0:
-            raise Exception("make failed, aborting")
+        self.log.debug(make_output.decode("utf-8"))
+        for root, _dirs, files in os.walk(git_worktree_path):
+            for file in fnmatch.filter(files, "*.so"):
+                version.modules[os.path.splitext(file)[0]] = (
+                    os.path.join(root, file)
+                )
 
-    def get_abi_dumps_from_shared_libraries(self, git_ref, git_worktree_path):
+    def _get_abi_dumps_from_shared_libraries(self, version):
         """Generate the ABI dumps for the specified git revision.
-        It must be checked out in git_worktree_path and the shared libraries
-        must have been built."""
-        abi_dumps = {}
-        for mbed_module in self.mbedtls_modules:
+        The shared libraries must have been built and the module paths
+        present in version.modules."""
+        for mbed_module, module_path in version.modules.items():
             output_path = os.path.join(
-                self.report_dir, "{}-{}.dump".format(mbed_module, git_ref)
+                self.report_dir, "{}-{}-{}.dump".format(
+                    mbed_module, version.revision, version.version
+                )
             )
             abi_dump_command = [
                 "abi-dumper",
-                os.path.join(
-                    git_worktree_path, "library", mbed_module + ".so"),
+                module_path,
                 "-o", output_path,
-                "-lver", git_ref
+                "-lver", version.revision
             ]
-            abi_dump_process = subprocess.Popen(
+            abi_dump_output = subprocess.check_output(
                 abi_dump_command,
-                stdout=subprocess.PIPE,
                 stderr=subprocess.STDOUT
             )
-            abi_dump_output, _ = abi_dump_process.communicate()
-            self.log.info(abi_dump_output.decode("utf-8"))
-            if abi_dump_process.returncode != 0:
-                raise Exception("abi-dumper failed, aborting")
-            abi_dumps[mbed_module] = output_path
-        return abi_dumps
+            self.log.debug(abi_dump_output.decode("utf-8"))
+            version.abi_dumps[mbed_module] = output_path
 
-    def cleanup_worktree(self, git_worktree_path):
+    def _cleanup_worktree(self, git_worktree_path):
         """Remove the specified git worktree."""
         shutil.rmtree(git_worktree_path)
-        worktree_process = subprocess.Popen(
+        worktree_output = subprocess.check_output(
             [self.git_command, "worktree", "prune"],
             cwd=self.repo_path,
-            stdout=subprocess.PIPE,
             stderr=subprocess.STDOUT
         )
-        worktree_output, _ = worktree_process.communicate()
-        self.log.info(worktree_output.decode("utf-8"))
-        if worktree_process.returncode != 0:
-            raise Exception("Worktree cleanup failed, aborting")
+        self.log.debug(worktree_output.decode("utf-8"))
 
-    def get_abi_dump_for_ref(self, git_rev):
+    def _get_abi_dump_for_ref(self, version):
         """Generate the ABI dumps for the specified git revision."""
-        git_worktree_path = self.get_clean_worktree_for_git_revision(git_rev)
-        self.update_git_submodules(git_worktree_path)
-        self.build_shared_libraries(git_worktree_path)
-        abi_dumps = self.get_abi_dumps_from_shared_libraries(
-            git_rev, git_worktree_path
-        )
-        self.cleanup_worktree(git_worktree_path)
-        return abi_dumps
+        git_worktree_path = self._get_clean_worktree_for_git_revision(version)
+        self._update_git_submodules(git_worktree_path, version)
+        self._build_shared_libraries(git_worktree_path, version)
+        self._get_abi_dumps_from_shared_libraries(version)
+        self._cleanup_worktree(git_worktree_path)
+
+    def _remove_children_with_tag(self, parent, tag):
+        children = parent.getchildren()
+        for child in children:
+            if child.tag == tag:
+                parent.remove(child)
+            else:
+                self._remove_children_with_tag(child, tag)
+
+    def _remove_extra_detail_from_report(self, report_root):
+        for tag in ['test_info', 'test_results', 'problem_summary',
+                    'added_symbols', 'removed_symbols', 'affected']:
+            self._remove_children_with_tag(report_root, tag)
+
+        for report in report_root:
+            for problems in report.getchildren()[:]:
+                if not problems.getchildren():
+                    report.remove(problems)
 
     def get_abi_compatibility_report(self):
         """Generate a report of the differences between the reference ABI
-        and the new ABI. ABI dumps from self.old_rev and self.new_rev must
-        be available."""
+        and the new ABI. ABI dumps from self.old_version and self.new_version
+        must be available."""
         compatibility_report = ""
         compliance_return_code = 0
-        for mbed_module in self.mbedtls_modules:
+        shared_modules = list(set(self.old_version.modules.keys()) &
+                              set(self.new_version.modules.keys()))
+        for mbed_module in shared_modules:
             output_path = os.path.join(
                 self.report_dir, "{}-{}-{}.html".format(
-                    mbed_module, self.old_rev, self.new_rev
+                    mbed_module, self.old_version.revision,
+                    self.new_version.revision
                 )
             )
             abi_compliance_command = [
                 "abi-compliance-checker",
                 "-l", mbed_module,
-                "-old", self.old_dumps[mbed_module],
-                "-new", self.new_dumps[mbed_module],
+                "-old", self.old_version.abi_dumps[mbed_module],
+                "-new", self.new_version.abi_dumps[mbed_module],
                 "-strict",
-                "-report-path", output_path
+                "-report-path", output_path,
             ]
-            abi_compliance_process = subprocess.Popen(
-                abi_compliance_command,
-                stdout=subprocess.PIPE,
-                stderr=subprocess.STDOUT
-            )
-            abi_compliance_output, _ = abi_compliance_process.communicate()
-            self.log.info(abi_compliance_output.decode("utf-8"))
-            if abi_compliance_process.returncode == 0:
+            if self.skip_file:
+                abi_compliance_command += ["-skip-symbols", self.skip_file,
+                                           "-skip-types", self.skip_file]
+            if self.brief:
+                abi_compliance_command += ["-report-format", "xml",
+                                           "-stdout"]
+            try:
+                subprocess.check_output(
+                    abi_compliance_command,
+                    stderr=subprocess.STDOUT
+                )
+            except subprocess.CalledProcessError as err:
+                if err.returncode == 1:
+                    compliance_return_code = 1
+                    if self.brief:
+                        self.log.info(
+                            "Compatibility issues found for {}".format(mbed_module)
+                        )
+                        report_root = ET.fromstring(err.output.decode("utf-8"))
+                        self._remove_extra_detail_from_report(report_root)
+                        self.log.info(ET.tostring(report_root).decode("utf-8"))
+                    else:
+                        self.can_remove_report_dir = False
+                        compatibility_report += (
+                            "Compatibility issues found for {}, "
+                            "for details see {}\n".format(mbed_module, output_path)
+                        )
+                else:
+                    raise err
+            else:
                 compatibility_report += (
                     "No compatibility issues for {}\n".format(mbed_module)
                 )
-                if not self.keep_all_reports:
+                if not (self.keep_all_reports or self.brief):
                     os.remove(output_path)
-            elif abi_compliance_process.returncode == 1:
-                compliance_return_code = 1
-                self.should_keep_report_dir = True
-                compatibility_report += (
-                    "Compatibility issues found for {}, "
-                    "for details see {}\n".format(mbed_module, output_path)
-                )
-            else:
-                raise Exception(
-                    "abi-compliance-checker failed with a return code of {},"
-                    " aborting".format(abi_compliance_process.returncode)
-                )
-            os.remove(self.old_dumps[mbed_module])
-            os.remove(self.new_dumps[mbed_module])
-        if not self.should_keep_report_dir and not self.keep_all_reports:
+            os.remove(self.old_version.abi_dumps[mbed_module])
+            os.remove(self.new_version.abi_dumps[mbed_module])
+        if self.can_remove_report_dir:
             os.rmdir(self.report_dir)
         self.log.info(compatibility_report)
         return compliance_return_code
@@ -226,8 +291,8 @@
         between self.old_rev and self.new_rev."""
         self.check_repo_path()
         self.check_abi_tools_are_installed()
-        self.old_dumps = self.get_abi_dump_for_ref(self.old_rev)
-        self.new_dumps = self.get_abi_dump_for_ref(self.new_rev)
+        self._get_abi_dump_for_ref(self.old_version)
+        self._get_abi_dump_for_ref(self.new_version)
         return self.get_abi_compatibility_report()
 
 
@@ -239,13 +304,18 @@
                 abi-compliance-checker and abi-dumper tools, applying them
                 to compare the ABI and API of the library files from two
                 different Git revisions within an Mbed TLS repository.
-                The results of the comparison are formatted as HTML and stored
-                at a configurable location. Returns 0 on success, 1 on ABI/API
-                non-compliance, and 2 if there is an error while running the
-                script. Note: must be run from Mbed TLS root."""
+                The results of the comparison are either formatted as HTML and
+                stored at a configurable location, or are given as a brief list
+                of problems. Returns 0 on success, 1 on ABI/API non-compliance,
+                and 2 if there is an error while running the script.
+                Note: must be run from Mbed TLS root."""
             )
         )
         parser.add_argument(
+            "-v", "--verbose", action="store_true",
+            help="set verbosity level",
+        )
+        parser.add_argument(
             "-r", "--report-dir", type=str, default="reports",
             help="directory where reports are stored, default is reports",
         )
@@ -254,18 +324,73 @@
             help="keep all reports, even if there are no compatibility issues",
         )
         parser.add_argument(
-            "-o", "--old-rev", type=str, help="revision for old version",
-            required=True
+            "-o", "--old-rev", type=str, help="revision for old version.",
+            required=True,
+        )
+        parser.add_argument(
+            "-or", "--old-repo", type=str, help="repository for old version."
+        )
+        parser.add_argument(
+            "-oc", "--old-crypto-rev", type=str,
+            help="revision for old crypto submodule."
+        )
+        parser.add_argument(
+            "-ocr", "--old-crypto-repo", type=str,
+            help="repository for old crypto submodule."
         )
         parser.add_argument(
             "-n", "--new-rev", type=str, help="revision for new version",
-            required=True
+            required=True,
+        )
+        parser.add_argument(
+            "-nr", "--new-repo", type=str, help="repository for new version."
+        )
+        parser.add_argument(
+            "-nc", "--new-crypto-rev", type=str,
+            help="revision for new crypto version"
+        )
+        parser.add_argument(
+            "-ncr", "--new-crypto-repo", type=str,
+            help="repository for new crypto submodule."
+        )
+        parser.add_argument(
+            "-s", "--skip-file", type=str,
+            help="path to file containing symbols and types to skip"
+        )
+        parser.add_argument(
+            "-b", "--brief", action="store_true",
+            help="output only the list of issues to stdout, instead of a full report",
         )
         abi_args = parser.parse_args()
-        abi_check = AbiChecker(
-            abi_args.report_dir, abi_args.old_rev,
-            abi_args.new_rev, abi_args.keep_all_reports
+        if os.path.isfile(abi_args.report_dir):
+            print("Error: {} is not a directory".format(abi_args.report_dir))
+            parser.exit()
+        old_version = SimpleNamespace(
+            version="old",
+            repository=abi_args.old_repo,
+            revision=abi_args.old_rev,
+            crypto_repository=abi_args.old_crypto_repo,
+            crypto_revision=abi_args.old_crypto_rev,
+            abi_dumps={},
+            modules={}
         )
+        new_version = SimpleNamespace(
+            version="new",
+            repository=abi_args.new_repo,
+            revision=abi_args.new_rev,
+            crypto_repository=abi_args.new_crypto_repo,
+            crypto_revision=abi_args.new_crypto_rev,
+            abi_dumps={},
+            modules={}
+        )
+        configuration = SimpleNamespace(
+            verbose=abi_args.verbose,
+            report_dir=abi_args.report_dir,
+            keep_all_reports=abi_args.keep_all_reports,
+            brief=abi_args.brief,
+            skip_file=abi_args.skip_file
+        )
+        abi_check = AbiChecker(old_version, new_version, configuration)
         return_code = abi_check.check_for_abi_changes()
         sys.exit(return_code)
     except Exception: # pylint: disable=broad-except
diff --git a/scripts/bump_version.sh b/scripts/bump_version.sh
index cf875c8..d76e313 100755
--- a/scripts/bump_version.sh
+++ b/scripts/bump_version.sh
@@ -9,7 +9,6 @@
 # Sets the version numbers in the source code to those given.
 #
 # Usage: bump_version.sh [ --version <version> ] [ --so-crypto <version>]
-#                           [ --so-x509 <version> ] [ --so-tls <version> ]
 #                           [ -v | --verbose ] [ -h | --help ]
 #
 
@@ -30,14 +29,6 @@
       shift
       SO_CRYPTO=$1
       ;;
-    --so-x509)
-      shift
-      SO_X509=$1
-      ;;
-    --so-tls)
-      shift
-      SO_TLS=$1
-      ;;
     -v|--verbose)
       # Be verbose
       VERBOSE="1"
@@ -48,8 +39,6 @@
       echo -e "  -h|--help\t\tPrint this help."
       echo -e "  --version <version>\tVersion to bump to."
       echo -e "  --so-crypto <version>\tSO version to bump libmbedcrypto to."
-      echo -e "  --so-x509 <version>\tSO version to bump libmbedx509 to."
-      echo -e "  --so-tls <version>\tSO version to bump libmbedtls to."
       echo -e "  -v|--verbose\t\tVerbose."
       exit 1
       ;;
@@ -83,28 +72,6 @@
   mv tmp library/Makefile
 fi
 
-if [ "X" != "X$SO_X509" ];
-then
-  [ $VERBOSE ] && echo "Bumping SOVERSION for libmbedx509 in library/CMakeLists.txt"
-  sed -e "/mbedx509/ s/ SOVERSION [0-9]\{1,\}/ SOVERSION $SO_X509/g" < library/CMakeLists.txt > tmp
-  mv tmp library/CMakeLists.txt
-
-  [ $VERBOSE ] && echo "Bumping SOVERSION for libmbedx509 in library/Makefile"
-  sed -e "s/SOEXT_X509=so.[0-9]\{1,\}/SOEXT_X509=so.$SO_X509/g" < library/Makefile > tmp
-  mv tmp library/Makefile
-fi
-
-if [ "X" != "X$SO_TLS" ];
-then
-  [ $VERBOSE ] && echo "Bumping SOVERSION for libmbedtls in library/CMakeLists.txt"
-  sed -e "/mbedtls/ s/ SOVERSION [0-9]\{1,\}/ SOVERSION $SO_TLS/g" < library/CMakeLists.txt > tmp
-  mv tmp library/CMakeLists.txt
-
-  [ $VERBOSE ] && echo "Bumping SOVERSION for libmbedtls in library/Makefile"
-  sed -e "s/SOEXT_TLS=so.[0-9]\{1,\}/SOEXT_TLS=so.$SO_TLS/g" < library/Makefile > tmp
-  mv tmp library/Makefile
-fi
-
 [ $VERBOSE ] && echo "Bumping VERSION in include/mbedtls/version.h"
 read MAJOR MINOR PATCH <<<$(IFS="."; echo $VERSION)
 VERSION_NR="$( printf "0x%02X%02X%02X00" $MAJOR $MINOR $PATCH )"
diff --git a/scripts/config.pl b/scripts/config.pl
index 6927c4b..b667905 100755
--- a/scripts/config.pl
+++ b/scripts/config.pl
@@ -28,15 +28,7 @@
 #   MBEDTLS_ECP_DP_M511_ENABLED
 #   MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
 #   MBEDTLS_NO_PLATFORM_ENTROPY
-#   MBEDTLS_REMOVE_ARC4_CIPHERSUITES
-#   MBEDTLS_REMOVE_3DES_CIPHERSUITES
-#   MBEDTLS_SSL_HW_RECORD_ACCEL
 #   MBEDTLS_RSA_NO_CRT
-#   MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
-#   MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
-#       - this could be enabled if the respective tests were adapted
-#   MBEDTLS_ZLIB_SUPPORT
-#   MBEDTLS_PKCS11_C
 #   MBEDTLS_USE_PSA_CRYPTO
 #       - experimental, and more an alternative implementation than a feature
 #   and any symbol beginning _ALT
@@ -91,13 +83,6 @@
 MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
 MBEDTLS_NO_PLATFORM_ENTROPY
 MBEDTLS_RSA_NO_CRT
-MBEDTLS_REMOVE_ARC4_CIPHERSUITES
-MBEDTLS_REMOVE_3DES_CIPHERSUITES
-MBEDTLS_SSL_HW_RECORD_ACCEL
-MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
-MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
-MBEDTLS_ZLIB_SUPPORT
-MBEDTLS_PKCS11_C
 MBEDTLS_NO_UDBL_DIVISION
 MBEDTLS_NO_64BIT_MULTIPLICATION
 MBEDTLS_PSA_CRYPTO_SPM
@@ -109,7 +94,6 @@
 
 # Things that should be disabled in "baremetal"
 my @excluded_baremetal = qw(
-MBEDTLS_NET_C
 MBEDTLS_TIMING_C
 MBEDTLS_FS_IO
 MBEDTLS_ENTROPY_NV_SEED
diff --git a/scripts/data_files/query_config.fmt b/scripts/data_files/query_config.fmt
index 064da4c..600f130 100644
--- a/scripts/data_files/query_config.fmt
+++ b/scripts/data_files/query_config.fmt
@@ -53,7 +53,6 @@
 #include "mbedtls/cipher.h"
 #include "mbedtls/cmac.h"
 #include "mbedtls/ctr_drbg.h"
-#include "mbedtls/debug.h"
 #include "mbedtls/des.h"
 #include "mbedtls/dhm.h"
 #include "mbedtls/ecdh.h"
@@ -72,13 +71,11 @@
 #include "mbedtls/md4.h"
 #include "mbedtls/md5.h"
 #include "mbedtls/memory_buffer_alloc.h"
-#include "mbedtls/net_sockets.h"
 #include "mbedtls/nist_kw.h"
 #include "mbedtls/oid.h"
 #include "mbedtls/padlock.h"
 #include "mbedtls/pem.h"
 #include "mbedtls/pk.h"
-#include "mbedtls/pkcs11.h"
 #include "mbedtls/pkcs12.h"
 #include "mbedtls/pkcs5.h"
 #include "mbedtls/platform_time.h"
@@ -89,19 +86,9 @@
 #include "mbedtls/sha1.h"
 #include "mbedtls/sha256.h"
 #include "mbedtls/sha512.h"
-#include "mbedtls/ssl.h"
-#include "mbedtls/ssl_cache.h"
-#include "mbedtls/ssl_ciphersuites.h"
-#include "mbedtls/ssl_cookie.h"
-#include "mbedtls/ssl_internal.h"
-#include "mbedtls/ssl_ticket.h"
 #include "mbedtls/threading.h"
 #include "mbedtls/timing.h"
 #include "mbedtls/version.h"
-#include "mbedtls/x509.h"
-#include "mbedtls/x509_crl.h"
-#include "mbedtls/x509_crt.h"
-#include "mbedtls/x509_csr.h"
 #include "mbedtls/xtea.h"
 
 #include <string.h>
diff --git a/scripts/footprint.sh b/scripts/footprint.sh
index c08ef1c..697972f 100755
--- a/scripts/footprint.sh
+++ b/scripts/footprint.sh
@@ -62,7 +62,6 @@
     fi
 
     {
-        scripts/config.pl unset MBEDTLS_NET_C || true
         scripts/config.pl unset MBEDTLS_TIMING_C || true
         scripts/config.pl unset MBEDTLS_FS_IO || true
         scripts/config.pl --force set MBEDTLS_NO_PLATFORM_ENTROPY || true
diff --git a/scripts/generate_errors.pl b/scripts/generate_errors.pl
index 0c1f7e1..e640f4c 100755
--- a/scripts/generate_errors.pl
+++ b/scripts/generate_errors.pl
@@ -32,11 +32,11 @@
 my @low_level_modules = qw( AES ARC4 ARIA ASN1 BASE64 BIGNUM BLOWFISH
                             CAMELLIA CCM CHACHA20 CHACHAPOLY CMAC CTR_DRBG DES
                             ENTROPY GCM HKDF HMAC_DRBG MD2 MD4 MD5
-                            NET OID PADLOCK PBKDF2 PLATFORM POLY1305 RIPEMD160
+                            OID PADLOCK PBKDF2 PLATFORM POLY1305 RIPEMD160
                             SHA1 SHA256 SHA512 THREADING XTEA );
 my @high_level_modules = qw( CIPHER DHM ECP MD
                              PEM PK PKCS12 PKCS5
-                             RSA SSL X509 );
+                             RSA );
 
 my $line_separator = $/;
 undef $/;
@@ -90,18 +90,13 @@
     $module_name = "HMAC_DRBG" if ($module_name eq "HMAC");
 
     my $define_name = $module_name;
-    $define_name = "X509_USE,X509_CREATE" if ($define_name eq "X509");
     $define_name = "ASN1_PARSE" if ($define_name eq "ASN1");
-    $define_name = "SSL_TLS" if ($define_name eq "SSL");
     $define_name = "PEM_PARSE,PEM_WRITE" if ($define_name eq "PEM");
 
     my $include_name = $module_name;
     $include_name =~ tr/A-Z/a-z/;
     $include_name = "" if ($include_name eq "asn1");
 
-    # Fix faulty ones
-    $include_name = "net_sockets" if ($module_name eq "NET");
-
     my $found_ll = grep $_ eq $module_name, @low_level_modules;
     my $found_hl = grep $_ eq $module_name, @high_level_modules;
     if (!$found_ll && !$found_hl)
@@ -160,19 +155,8 @@
         ${$old_define} = $define_name;
     }
 
-    if ($error_name eq "MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE")
-    {
-        ${$code_check} .= "${white_space}if( use_ret == -($error_name) )\n".
-                          "${white_space}\{\n".
-                          "${white_space}    mbedtls_snprintf( buf, buflen, \"$module_name - $description\" );\n".
-                          "${white_space}    return;\n".
-                          "${white_space}}\n"
-    }
-    else
-    {
-        ${$code_check} .= "${white_space}if( use_ret == -($error_name) )\n".
-                          "${white_space}    mbedtls_snprintf( buf, buflen, \"$module_name - $description\" );\n"
-    }
+    ${$code_check} .= "${white_space}if( use_ret == -($error_name) )\n".
+                      "${white_space}    mbedtls_snprintf( buf, buflen, \"$module_name - $description\" );\n"
 };
 
 if ($ll_old_define ne "")
diff --git a/scripts/memory.sh b/scripts/memory.sh
deleted file mode 100755
index 3dad289..0000000
--- a/scripts/memory.sh
+++ /dev/null
@@ -1,126 +0,0 @@
-#!/bin/sh
-
-# Measure memory usage of a minimal client using a small configuration
-# Currently hardwired to ccm-psk and suite-b, may be expanded later
-#
-# Use different build options for measuring executable size and memory usage,
-# since for memory we want debug information.
-
-set -eu
-
-CONFIG_H='include/mbedtls/config.h'
-
-CLIENT='mini_client'
-
-CFLAGS_EXEC='-fno-asynchronous-unwind-tables -Wl,--gc-section -ffunction-sections -fdata-sections'
-CFLAGS_MEM=-g3
-
-if [ -r $CONFIG_H ]; then :; else
-    echo "$CONFIG_H not found" >&2
-    exit 1
-fi
-
-if grep -i cmake Makefile >/dev/null; then
-    echo "Not compatible with CMake" >&2
-    exit 1
-fi
-
-if [ $( uname ) != Linux ]; then
-    echo "Only work on Linux" >&2
-    exit 1
-fi
-
-if git status | grep -F $CONFIG_H >/dev/null 2>&1; then
-    echo "config.h not clean" >&2
-    exit 1
-fi
-
-# make measurements with one configuration
-# usage: do_config <name> <unset-list> <server-args>
-do_config()
-{
-    NAME=$1
-    UNSET_LIST=$2
-    SERVER_ARGS=$3
-
-    echo ""
-    echo "config-$NAME:"
-    cp configs/config-$NAME.h $CONFIG_H
-    scripts/config.pl unset MBEDTLS_SSL_SRV_C
-
-    for FLAG in $UNSET_LIST; do
-        scripts/config.pl unset $FLAG
-    done
-
-    grep -F SSL_MAX_CONTENT_LEN $CONFIG_H || echo 'SSL_MAX_CONTENT_LEN=16384'
-
-    printf "    Executable size... "
-
-    make clean
-    CFLAGS=$CFLAGS_EXEC make OFLAGS=-Os lib >/dev/null 2>&1
-    cd programs
-    CFLAGS=$CFLAGS_EXEC make OFLAGS=-Os ssl/$CLIENT >/dev/null
-    strip ssl/$CLIENT
-    stat -c '%s' ssl/$CLIENT
-    cd ..
-
-    printf "    Peak ram usage... "
-
-    make clean
-    CFLAGS=$CFLAGS_MEM make OFLAGS=-Os lib >/dev/null 2>&1
-    cd programs
-    CFLAGS=$CFLAGS_MEM make OFLAGS=-Os ssl/$CLIENT >/dev/null
-    cd ..
-
-    ./ssl_server2 $SERVER_ARGS >/dev/null &
-    SRV_PID=$!
-    sleep 1;
-
-    if valgrind --tool=massif --stacks=yes programs/ssl/$CLIENT >/dev/null 2>&1
-    then
-        FAILED=0
-    else
-        echo "client failed" >&2
-        FAILED=1
-    fi
-
-    kill $SRV_PID
-    wait $SRV_PID
-
-    scripts/massif_max.pl massif.out.*
-    mv massif.out.* massif-$NAME.$$
-}
-
-# preparation
-
-CONFIG_BAK=${CONFIG_H}.bak
-cp $CONFIG_H $CONFIG_BAK
-
-rm -f massif.out.*
-
-printf "building server... "
-
-make clean
-make lib >/dev/null 2>&1
-(cd programs && make ssl/ssl_server2) >/dev/null
-cp programs/ssl/ssl_server2 .
-
-echo "done"
-
-# actual measurements
-
-do_config   "ccm-psk-tls1_2" \
-            "" \
-            "psk=000102030405060708090A0B0C0D0E0F"
-
-do_config   "suite-b" \
-            "MBEDTLS_BASE64_C MBEDTLS_PEM_PARSE_C MBEDTLS_CERTS_C" \
-            ""
-
-# cleanup
-
-mv $CONFIG_BAK $CONFIG_H
-make clean
-rm ssl_server2
-
-exit $FAILED
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index fd02964..5139794 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,15 +1,7 @@
 set(libs
-    mbedtls
+    mbedcrypto
 )
 
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
-if(ENABLE_ZLIB_SUPPORT)
-    set(libs ${libs} ${ZLIB_LIBRARIES})
-endif(ENABLE_ZLIB_SUPPORT)
-
 find_package(Perl)
 if(NOT PERL_FOUND)
     message(FATAL_ERROR "Cannot build test suites without Perl")
@@ -37,7 +29,7 @@
     add_custom_command(
         OUTPUT test_suite_${data_name}.c
         COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/scripts/generate_test_code.py -f ${CMAKE_CURRENT_SOURCE_DIR}/suites/test_suite_${suite_name}.function -d ${CMAKE_CURRENT_SOURCE_DIR}/suites/test_suite_${data_name}.data -t ${CMAKE_CURRENT_SOURCE_DIR}/suites/main_test.function -p ${CMAKE_CURRENT_SOURCE_DIR}/suites/host_test.function -s ${CMAKE_CURRENT_SOURCE_DIR}/suites --helpers-file ${CMAKE_CURRENT_SOURCE_DIR}/suites/helpers.function -o .
-        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/scripts/generate_test_code.py mbedtls ${CMAKE_CURRENT_SOURCE_DIR}/suites/helpers.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/main_test.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/host_test.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/test_suite_${suite_name}.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/test_suite_${data_name}.data
+        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/scripts/generate_test_code.py mbedcrypto ${CMAKE_CURRENT_SOURCE_DIR}/suites/helpers.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/main_test.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/host_test.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/test_suite_${suite_name}.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/test_suite_${data_name}.data
     )
 
     set(exe_name test_suite_${data_name})
diff --git a/tests/Makefile b/tests/Makefile
index 8db7920..aba002b 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -1,6 +1,5 @@
 
 # To compile on SunOS: add "-lsocket -lnsl" to LDFLAGS
-# To compile with PKCS11: add "-lpkcs11-helper" to LDFLAGS
 
 CFLAGS	?= -O2
 WARNING_CFLAGS ?= -Wall -W -Wdeclaration-after-statement -Wno-unused-function -Wno-unused-value
@@ -9,8 +8,6 @@
 CRYPTO_INCLUDES ?= -I../include
 LOCAL_CFLAGS = $(WARNING_CFLAGS) $(CRYPTO_INCLUDES) -I../library -D_FILE_OFFSET_BITS=64
 LOCAL_LDFLAGS = -L../library			\
-		-lmbedtls$(SHARED_SUFFIX)	\
-		-lmbedx509$(SHARED_SUFFIX)	\
 		-lmbedcrypto$(SHARED_SUFFIX)
 
 # Enable definition of various functions used throughout the testsuite
@@ -19,9 +16,9 @@
 LOCAL_CFLAGS += -D_POSIX_C_SOURCE=200809L
 
 ifndef SHARED
-DEP=../library/libmbedcrypto.a ../library/libmbedx509.a ../library/libmbedtls.a
+DEP=../library/libmbedcrypto.a
 else
-DEP=../library/libmbedcrypto.$(DLEXT) ../library/libmbedx509.$(DLEXT) ../library/libmbedtls.$(DLEXT)
+DEP=../library/libmbedcrypto.$(DLEXT)
 endif
 
 ifdef DEBUG
@@ -49,11 +46,6 @@
 PYTHON ?= python2
 endif
 
-# Zlib shared library extensions:
-ifdef ZLIB
-LOCAL_LDFLAGS += -lz
-endif
-
 # A test application is built for each suites/test_suite_*.data file.
 # Application name is same as .data file's base name and can be
 # constructed by stripping path 'suites/' and extension .data.
diff --git a/tests/data_files/Makefile b/tests/data_files/Makefile
index 748514d..512bb29 100644
--- a/tests/data_files/Makefile
+++ b/tests/data_files/Makefile
@@ -13,8 +13,12 @@
 ## Tools
 OPENSSL ?= openssl
 FAKETIME ?= faketime
-MBEDTLS_CERT_WRITE ?= $(PWD)/../../programs/x509/cert_write
-MBEDTLS_CERT_REQ ?= $(PWD)/../../programs/x509/cert_req
+
+# Tools from Mbed TLS
+# Mbed Crypto depends on Mbed TLS programs to generate its test certificates.
+# These programs can be installed from Mbed TLS.
+MBEDTLS_CERT_WRITE ?= mbedtls_cert_write
+MBEDTLS_CERT_REQ ?= mbedtls_cert_req
 
 
 ## Build the generated test data. Note that since the final outputs
@@ -57,52 +61,7 @@
 	$(MBEDTLS_CERT_WRITE) is_ca=1 serial=3 request_file=test-ca.req.sha256 selfsign=1 issuer_name="C=NL,O=PolarSSL,CN=PolarSSL Test CA" issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) not_before=20110212144400 not_after=20210212144400 md=SHA256 version=3 output_file=$@
 all_final += test-ca-sha256.crt
 
-test_ca_key_file_rsa_alt = test-ca-alt.key
-
-$(test_ca_key_file_rsa_alt):
-	$(OPENSSL) genrsa -out $@ 2048
-test-ca-alt.csr: $(test_ca_key_file_rsa_alt) $(test_ca_config_file)
-	$(OPENSSL) req -new -config $(test_ca_config_file) -key $(test_ca_key_file_rsa_alt) -subj "/C=NL/O=PolarSSL/CN=PolarSSL Test CA" -out $@
-all_intermediate += test-ca-alt.csr
-test-ca-alt.crt: $(test_ca_key_file_rsa_alt) $(test_ca_config_file) test-ca-alt.csr
-	$(OPENSSL) req -x509 -config $(test_ca_config_file) -key $(test_ca_key_file_rsa_alt) -set_serial 0 -days 3653 -sha256 -in test-ca-alt.csr -out $@
-all_final += test-ca-alt.crt
-test-ca-alt-good.crt: test-ca-alt.crt test-ca-sha256.crt
-	cat test-ca-alt.crt test-ca-sha256.crt > $@
-all_final += test-ca-alt-good.crt
-test-ca-good-alt.crt: test-ca-alt.crt test-ca-sha256.crt
-	cat test-ca-sha256.crt test-ca-alt.crt > $@
-all_final += test-ca-good-alt.crt
-
-test_ca_crt_file_ec = test-ca2.crt
-test_ca_key_file_ec = test-ca2.key
-
-test_ca_crt_cat12 = test-ca_cat12.crt
-$(test_ca_crt_cat12): $(test_ca_crt) $(test_ca_crt_file_ec)
-	cat $(test_ca_crt) $(test_ca_crt_file_ec) > $@
-all_final += $(test_ca_crt_cat12)
-
-test_ca_crt_cat21 = test-ca_cat21.crt
-$(test_ca_crt_cat21): $(test_ca_crt) $(test_ca_crt_file_ec)
-	cat $(test_ca_crt_file_ec) $(test_ca_crt) > $@
-all_final += $(test_ca_crt_cat21)
-
-test-int-ca.csr: test-int-ca.key $(test_ca_config_file)
-	$(OPENSSL) req -new -config $(test_ca_config_file) -key test-int-ca.key -subj "/C=NL/O=PolarSSL/CN=PolarSSL Test Intermediate CA" -out $@
-all_intermediate += test-int-ca.csr
-test-int-ca-exp.crt: $(test_ca_crt_file_ec) $(test_ca_key_file_ec) $(test_ca_config_file) test-int-ca.csr
-	$(FAKETIME) -f -3653d $(OPENSSL) x509 -req -extfile $(test_ca_config_file) -extensions v3_ca -CA $(test_ca_crt_file_ec) -CAkey $(test_ca_key_file_ec) -set_serial 14 -days 3653 -sha256 -in test-int-ca.csr -out $@
-all_final += test-int-ca-exp.crt
-
-crl-idp.pem: $(test_ca_crt) $(test_ca_key_file_rsa) $(test_ca_config_file)
-	$(OPENSSL) ca -gencrl -batch -cert $(test_ca_crt) -keyfile $(test_ca_key_file_rsa) -key $(test_ca_pwd_rsa) -config $(test_ca_config_file) -name test_ca -md sha256 -crldays 3653 -crlexts crl_ext_idp -out $@
-all_final += crl-idp.pem
-crl-idpnc.pem: $(test_ca_crt) $(test_ca_key_file_rsa) $(test_ca_config_file)
-	$(OPENSSL) ca -gencrl -batch -cert $(test_ca_crt) -keyfile $(test_ca_key_file_rsa) -key $(test_ca_pwd_rsa) -config $(test_ca_config_file) -name test_ca -md sha256 -crldays 3653 -crlexts crl_ext_idp_nc -out $@
-all_final += crl-idpnc.pem
-
 cli_crt_key_file_rsa = cli-rsa.key
-cli_crt_extensions_file = cli.opensslconf
 
 cli-rsa.csr: $(cli_crt_key_file_rsa)
 	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Client 2" md=SHA1
@@ -117,56 +76,10 @@
 
 test_ca_int_rsa1 = test-int-ca.crt
 
-server7.csr: server7.key
-	$(OPENSSL) req -new -key server7.key -subj "/C=NL/O=PolarSSL/CN=localhost" -out $@
-all_intermediate += server7.csr
-server7-expired.crt: server7.csr $(test_ca_int_rsa1)
-	$(FAKETIME) -f -3653d $(OPENSSL) x509 -req -extfile $(cli_crt_extensions_file) -extensions cli-rsa -CA $(test_ca_int_rsa1) -CAkey test-int-ca.key -set_serial 16 -days 3653 -sha256 -in server7.csr | cat - $(test_ca_int_rsa1) > $@
-all_final += server7-expired.crt
-server7-future.crt: server7.csr $(test_ca_int_rsa1)
-	$(FAKETIME) -f +3653d $(OPENSSL) x509 -req -extfile $(cli_crt_extensions_file) -extensions cli-rsa -CA $(test_ca_int_rsa1) -CAkey test-int-ca.key -set_serial 16 -days 3653 -sha256 -in server7.csr | cat - $(test_ca_int_rsa1) > $@
-all_final += server7-future.crt
-server7-badsign.crt: server7.crt $(test_ca_int_rsa1)
-	{ head -n-2 $<; tail -n-2 $< | sed -e '1s/0\(=*\)$$/_\1/' -e '1s/[^_=]\(=*\)$$/0\1/' -e '1s/_/1/'; cat $(test_ca_int_rsa1); } > $@
-all_final += server7-badsign.crt
-server7_int-ca-exp.crt: server7.crt test-int-ca-exp.crt
-	cat server7.crt test-int-ca-exp.crt > $@
-all_final += server7_int-ca-exp.crt
-
-server5-ss-expired.crt: server5.key
-	$(FAKETIME) -f -3653d $(OPENSSL) req -x509 -new -subj "/C=UK/O=mbed TLS/OU=testsuite/CN=localhost" -days 3653 -sha256 -key $< -out $@
-all_final += server5-ss-expired.crt
-
-# try to forge a copy of test-int-ca3 with different key
-server5-ss-forgeca.crt: server5.key
-	$(FAKETIME) '2015-09-01 14:08:43' $(OPENSSL) req -x509 -new -subj "/C=UK/O=mbed TLS/CN=mbed TLS Test intermediate CA 3" -set_serial 77 -config $(test_ca_config_file) -extensions noext_ca -days 3650 -sha256 -key $< -out $@
-all_final += server5-ss-forgeca.crt
-
-server10-badsign.crt: server10.crt
-	{ head -n-2 $<; tail -n-2 $< | sed -e '1s/0\(=*\)$$/_\1/' -e '1s/[^_=]\(=*\)$$/0\1/' -e '1s/_/1/'; } > $@
-all_final += server10-badsign.crt
-server10-bs_int3.pem: server10-badsign.crt test-int-ca3.crt
-	cat server10-badsign.crt test-int-ca3.crt > $@
-all_final += server10-bs_int3.pem
-test-int-ca3-badsign.crt: test-int-ca3.crt
-	{ head -n-2 $<; tail -n-2 $< | sed -e '1s/0\(=*\)$$/_\1/' -e '1s/[^_=]\(=*\)$$/0\1/' -e '1s/_/1/'; } > $@
-all_final += test-int-ca3-badsign.crt
-server10_int3-bs.pem: server10.crt test-int-ca3-badsign.crt
-	cat server10.crt test-int-ca3-badsign.crt > $@
-all_final += server10_int3-bs.pem
-
-rsa_pkcs1_2048_public.pem: server8.key
-	$(OPENSSL)  rsa -in $< -outform PEM -RSAPublicKey_out -out $@
-all_final += rsa_pkcs1_2048_public.pem
-
 rsa_pkcs1_2048_public.der: rsa_pkcs1_2048_public.pem
 	$(OPENSSL) rsa -RSAPublicKey_in -in $< -outform DER -RSAPublicKey_out -out $@
 all_final += rsa_pkcs1_2048_public.der
 
-rsa_pkcs8_2048_public.pem: server8.key
-	$(OPENSSL)  rsa -in $< -outform PEM -pubout -out $@
-all_final += rsa_pkcs8_2048_public.pem
-
 rsa_pkcs8_2048_public.der: rsa_pkcs8_2048_public.pem
 	$(OPENSSL) rsa -pubin -in $< -outform DER -pubout -out $@
 all_final += rsa_pkcs8_2048_public.der
@@ -745,140 +658,16 @@
 ### Generate CSRs for X.509 write test suite
 ################################################################
 
-server1.req.sha1: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA1
-all_final += server1.req.sha1
-
-server1.req.md4: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=MD4
-all_final += server1.req.md4
-
-server1.req.md5: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=MD5
-all_final += server1.req.md5
-
-server1.req.sha224: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA224
-all_final += server1.req.sha224
-
-server1.req.sha256: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA256
-all_final += server1.req.sha256
-
-server1.req.sha384: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA384
-all_final += server1.req.sha384
-
-server1.req.sha512: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA512
-all_final += server1.req.sha512
-
-server1.req.cert_type: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< ns_cert_type=ssl_server subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA1
-all_final += server1.req.cert_type
-
-server1.req.key_usage: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< key_usage=digital_signature,non_repudiation,key_encipherment subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA1
-all_final += server1.req.key_usage
-
-server1.req.ku-ct: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< key_usage=digital_signature,non_repudiation,key_encipherment ns_cert_type=ssl_server subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA1
-all_final += server1.req.ku-ct
-
-server1.req.key_usage_empty: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA1 force_key_usage=1
-all_final += server1.req.key_usage_empty
-
-server1.req.cert_type_empty: server1.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA1 force_ns_cert_type=1
-all_final += server1.req.cert_type_empty
-
 # server2*
 
 server2.req.sha256: server2.key
 	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=localhost" md=SHA256
 all_intermediate += server2.req.sha256
 
-# server5*
-
-# The use of 'Server 1' in the DN is intentional here, as the DN is hardcoded in the x509_write test suite.'
-server5.req.ku.sha1: server5.key
-	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< key_usage=digital_signature,non_repudiation subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA1
-all_final += server5.req.ku.sha1
-
 ################################################################
 ### Generate certificates for CRT write check tests
 ################################################################
 
-### The test files use the Mbed TLS generated certificates server1*.crt,
-### but for comparison with OpenSSL also rules for OpenSSL-generated
-### certificates server1*.crt.openssl are offered.
-###
-### Known differences:
-### * OpenSSL encodes trailing zero-bits in bit-strings occurring in X.509 extension
-###   as unused bits, while Mbed TLS doesn't.
-
-test_ca_server1_db = test-ca.server1.db
-test_ca_server1_serial = test-ca.server1.serial
-test_ca_server1_config_file = test-ca.server1.opensslconf
-
-# server1*
-
-server1.crt: server1.key server1.req.sha256 $(test_ca_crt) $(test_ca_key_file_rsa)
-	$(MBEDTLS_CERT_WRITE) request_file=server1.req.sha256 issuer_crt=$(test_ca_crt) issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) version=1 not_before=20110212144406 not_after=20210212144406 md=SHA1 version=3 output_file=$@
-server1.noauthid.crt: server1.key server1.req.sha256 $(test_ca_crt) $(test_ca_key_file_rsa)
-	$(MBEDTLS_CERT_WRITE) request_file=server1.req.sha256 issuer_crt=$(test_ca_crt) issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) not_before=20110212144406 not_after=20210212144406 md=SHA1 authority_identifier=0 version=3 output_file=$@
-server1.der: server1.crt
-	$(OPENSSL) x509 -inform PEM -in $< -outform DER -out $@
-all_final += server1.crt server1.noauthid.crt server1.der
-
-server1.key_usage.crt: server1.key server1.req.sha256 $(test_ca_crt) $(test_ca_key_file_rsa)
-	$(MBEDTLS_CERT_WRITE) request_file=server1.req.sha256 issuer_crt=$(test_ca_crt) issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) version=1 not_before=20110212144406 not_after=20210212144406 md=SHA1 key_usage=digital_signature,non_repudiation,key_encipherment version=3 output_file=$@
-server1.key_usage_noauthid.crt: server1.key server1.req.sha256 $(test_ca_crt) $(test_ca_key_file_rsa)
-	$(MBEDTLS_CERT_WRITE) request_file=server1.req.sha256 issuer_crt=$(test_ca_crt) issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) version=1 not_before=20110212144406 not_after=20210212144406 md=SHA1 key_usage=digital_signature,non_repudiation,key_encipherment authority_identifier=0 version=3 output_file=$@
-server1.key_usage.der: server1.key_usage.crt
-	$(OPENSSL) x509 -inform PEM -in $< -outform DER -out $@
-all_final += server1.key_usage.crt server1.key_usage_noauthid.crt server1.key_usage.der
-
-server1.cert_type.crt: server1.key server1.req.sha256 $(test_ca_crt) $(test_ca_key_file_rsa)
-	$(MBEDTLS_CERT_WRITE) request_file=server1.req.sha256 issuer_crt=$(test_ca_crt) issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) version=1 not_before=20110212144406 not_after=20210212144406 md=SHA1 ns_cert_type=ssl_server version=3 output_file=$@
-server1.cert_type_noauthid.crt: server1.key server1.req.sha256 $(test_ca_crt) $(test_ca_key_file_rsa)
-	$(MBEDTLS_CERT_WRITE) request_file=server1.req.sha256 issuer_crt=$(test_ca_crt) issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) version=1 not_before=20110212144406 not_after=20210212144406 md=SHA1 ns_cert_type=ssl_server authority_identifier=0 version=3 output_file=$@
-server1.cert_type.der: server1.cert_type.crt
-	$(OPENSSL) x509 -inform PEM -in $< -outform DER -out $@
-all_final += server1.cert_type.crt server1.cert_type_noauthid.crt server1.cert_type.der
-
-server1.v1.crt: server1.key server1.req.sha256 $(test_ca_crt) $(test_ca_key_file_rsa)
-	$(MBEDTLS_CERT_WRITE) request_file=server1.req.sha256 issuer_crt=$(test_ca_crt) issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) version=1 not_before=20110212144406 not_after=20210212144406 md=SHA1 version=1 output_file=$@
-server1.v1.der: server1.v1.crt
-	$(OPENSSL) x509 -inform PEM -in $< -outform DER -out $@
-all_final += server1.v1.crt server1.v1.der
-
-# OpenSSL-generated certificates for comparison
-# Also provide certificates in DER format to allow
-# direct binary comparison using e.g. dumpasn1
-server1.crt.openssl server1.key_usage.crt.openssl server1.cert_type.crt.openssl: server1.key server1.req.sha256 $(test_ca_crt) $(test_ca_key_file_rsa) $(test_ca_server1_config_file)
-	echo "01" > $(test_ca_server1_serial)
-	rm -f $(test_ca_server1_db)
-	touch $(test_ca_server1_db)
-	$(OPENSSL) ca -batch -passin "pass:$(test_ca_pwd_rsa)" -config $(test_ca_server1_config_file) -in server1.req.sha256 -extensions v3_ext -extfile $@.v3_ext -out $@
-server1.der.openssl: server1.crt.openssl
-	$(OPENSSL) x509 -inform PEM -in $< -outform DER -out $@
-server1.key_usage.der.openssl: server1.key_usage.crt.openssl
-	$(OPENSSL) x509 -inform PEM -in $< -outform DER -out $@
-server1.cert_type.der.openssl: server1.cert_type.crt.openssl
-	$(OPENSSL) x509 -inform PEM -in $< -outform DER -out $@
-
-server1.v1.crt.openssl: server1.key server1.req.sha256 $(test_ca_crt) $(test_ca_key_file_rsa) $(test_ca_server1_config_file)
-	echo "01" > $(test_ca_server1_serial)
-	rm -f $(test_ca_server1_db)
-	touch $(test_ca_server1_db)
-	$(OPENSSL) ca -batch -passin "pass:$(test_ca_pwd_rsa)" -config $(test_ca_server1_config_file) -in server1.req.sha256 -out $@
-server1.v1.der.openssl: server1.v1.crt.openssl
-	$(OPENSSL) x509 -inform PEM -in $< -outform DER -out $@
-
-server1_all: server1.crt server1.noauthid.crt server1.crt.openssl server1.v1.crt server1.v1.crt.openssl server1.key_usage.crt server1.key_usage_noauthid.crt server1.key_usage.crt.openssl server1.cert_type.crt server1.cert_type_noauthid.crt server1.cert_type.crt.openssl server1.der server1.der.openssl server1.v1.der server1.v1.der.openssl server1.key_usage.der server1.key_usage.der.openssl server1.cert_type.der server1.cert_type.der.openssl
-
 # server2*
 
 server2.crt: server2.req.sha256
@@ -908,7 +697,6 @@
 .PHONY: keys_rsa_enc_pkcs8_v1_1024 keys_rsa_enc_pkcs8_v2_1024
 .PHONY: keys_rsa_enc_pkcs8_v1_2048 keys_rsa_enc_pkcs8_v2_2048
 .PHONY: keys_rsa_enc_pkcs8_v1_4096 keys_rsa_enc_pkcs8_v2_4096
-.PHONY: server1_all
 
 # These files should not be committed to the repository.
 list_intermediate:
diff --git a/tests/data_files/Readme-x509.txt b/tests/data_files/Readme-x509.txt
deleted file mode 100644
index 6f54ed0..0000000
--- a/tests/data_files/Readme-x509.txt
+++ /dev/null
@@ -1,131 +0,0 @@
-This documents the X.509 CAs, certificates, and CRLS used for testing.
-
-Certification authorities
--------------------------
-
-There are two main CAs for use as trusted roots:
-- test-ca.crt aka "C=NL, O=PolarSSL, CN=PolarSSL Test CA"
-  uses a RSA-2048 key
-  test-ca-sha1.crt and test-ca-sha256.crt use the same key, signed with
-  different hashes.
-- test-ca2*.crt aka "C=NL, O=PolarSSL, CN=Polarssl Test EC CA"
-  uses an EC key with NIST P-384 (aka secp384r1)
-  variants used to test the keyUsage extension
-The files test-ca_cat12 and test-ca_cat21 contain them concatenated both ways.
-
-Two intermediate CAs are signed by them:
-- test-int-ca.crt "C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate CA"
-  uses RSA-4096, signed by test-ca2
-    - test-int-ca-exp.crt is a copy that is expired
-- test-int-ca2.crt "C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA"
-  uses an EC key with NIST P-384, signed by test-ca
-
-A third intermediate CA is signed by test-int-ca2.crt:
-- test-int-ca3.crt "C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3"
-  uses an EC key with NIST P-256, signed by test-int-ca2
-
-Finally, other CAs for specific purposes:
-- enco-ca-prstr.pem: has its CN encoded as a printable string, but child cert
-  enco-cert-utf8str.pem has its issuer's CN encoded as a UTF-8 string.
-- test-ca-v1.crt: v1 "CA", signs
-    server1-v1.crt: v1 "intermediate CA", signs
-        server2-v1*.crt: EE cert (without of with chain in same file)
-- keyUsage.decipherOnly.crt: has the decipherOnly keyUsage bit set
-
-End-entity certificates
------------------------
-
-Short information fields:
-
-- name or pattern
-- issuing CA:   1   -> test-ca.crt
-                2   -> test-ca2.crt
-                I1  -> test-int-ca.crt
-                I2  -> test-int-ca2.crt
-                I3  -> test-int-ca3.crt
-                O   -> other
-- key type: R -> RSA, E -> EC
-- C -> there is a CRL revoking this cert (see below)
-- L -> CN=localhost (useful for local test servers)
-- P1, P2 if the file includes parent (resp. parent + grandparent)
-- free-form comments
-
-List of certificates:
-
-- cert_example_multi*.crt: 1/O R: subjectAltName
-- cert_example_wildcard.crt: 1 R: wildcard in subject's CN
-- cert_md*.crt, cert_sha*.crt: 1 R: signature hash
-- cert_v1_with_ext.crt: 1 R: v1 with extensions (illegal)
-- cli2.crt: 2 E: basic
-- cli-rsa.key, cli-rsa-*.crt: RSA key used for test clients, signed by
-  the RSA test CA.
-- enco-cert-utf8str.pem: see enco-ca-prstr.pem above
-- server1*.crt: 1* R C* P1*: misc *(server1-v1 see test-ca-v1.crt above)
-    *CRL for: .cert_type.crt, .crt, .key_usage.crt, .v1.crt
-    P1 only for _ca.crt
-- server2-v1*.crt: O R: see test-ca-v1.crt above
-- server2*.crt: 1 R L: misc
-- server3.crt: 1 E L: EC cert signed by RSA CA
-- server4.crt: 2 R L: RSA cert signed by EC CA
-- server5*.crt: 2* E L: misc *(except -selfsigned and -ss-*)
-    -sha*: hashes
-    .eku*: extendeKeyUsage (cli/srv = www client/server, cs = codesign, etc)
-    .ku*: keyUsage (ds = signatures, ke/ka = key exchange/agreement)
-    .req*: CSR, not certificate
-    -der*: trailing bytes in der (?)
-    -badsign.crt: S5 with corrupted signature
-    -expired.crt: S5 with "not after" date in the past
-    -future.crt: S5 with "not before" date in the future
-    -selfsigned.crt: Self-signed cert with S5 key
-    -ss-expired.crt: Self-signed cert with S5 key, expired
-    -ss-forgeca.crt: Copy of test-int-ca3 self-signed with S5 key
-- server6-ss-child.crt: O E: "child" of non-CA server5-selfsigned
-- server6.crt, server6.pem: 2 E L C: revoked
-- server7.crt: I1 E L P1(usually): EC signed by RSA signed by EC
-    -badsign.crt: S7 with corrupted signature + I1
-    -expired.crt: S7 with "not after" date in the past + I1
-    -future.crt: S7 with "not before" date in the future + I1
-    _int-ca-exp.crt: S7 + expired I1
-    _int-ca.crt: S7 + I1
-    _int-ca_ca2.crt: S7 + I1 + 2
-    _all_space.crt: S7 + I1 both with misplaced spaces (invalid PEM)
-    _pem_space.crt: S7 with misplace space (invalid PEM) + I1
-    _trailing_space.crt: S7 + I1 both with trainling space (valid PEM)
-    _spurious_int-ca.crt: S7 + I2(spurious) + I1
-- server8*.crt: I2 R L: RSA signed by EC signed by RSA (P1 for _int-ca2)
-- server9*.crt: 1 R C* L P1*: signed using RSASSA-PSS
-    *CRL for: 9.crt, -badsign, -with-ca (P1)
-- server10.crt: I3 E L
-    -badsign.crt: S10 with corrupted signature
-    -bs_int3.pem: S10-badsign + I3
-    _int3-bs.pem: S10 + I3-badsign
-    _int3_int-ca2.crt: S10 + I3 + I2
-    _int3_int-ca2_ca.crt: S10 + I3 + I2 + 1
-    _int3_spurious_int-ca2.crt: S10 + I3 + I1(spurious) + I2
-
-Certificate revocation lists
-----------------------------
-
-Signing CA in parentheses (same meaning as certificates).
-
-- crl-ec-sha*.pem: (2) server6.crt
-- crl-future.pem: (2) server6.crt + unknown
-- crl-rsa-pss-*.pem: (1) server9{,badsign,with-ca}.crt + cert_sha384.crt + unknown
-- crl.pem, crl_expired.pem: (1) server1{,.cert_type,.key_usage,.v1}.crt + unknown
-- crl_md*.pem: crl_sha*.pem: (1) same as crl.pem
-- crt_cat_*.pem: (1+2) concatenations in various orders:
-    ec = crl-ec-sha256.pem, ecfut = crl-future.pem
-    rsa = crl.pem, rsabadpem = same with pem error, rsaexp = crl_expired.pem
-
-Note: crl_future would revoke server9 and cert_sha384.crt if signed by CA 1
-      crl-rsa-pss* would revoke server6.crt if signed by CA 2
-
-Generation
-----------
-
-Newer test files have been generated through commands in the Makefile. The
-resulting files are committed to the repository so that the tests can
-run without having to re-do the generation and so that the output is the
-same for everyone (the generation process is randomized).
-
-The origin of older certificates has not been recorded.
diff --git a/tests/data_files/bitstring-in-dn.pem b/tests/data_files/bitstring-in-dn.pem
deleted file mode 100644
index 1a98aa3..0000000
--- a/tests/data_files/bitstring-in-dn.pem
+++ /dev/null
@@ -1,51 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIEATCCAumgAwIBAgIBAjANBgkqhkiG9w0BAQUFADBxMRMwEQYDVQQDDApUZXN0
-IENBIDAxMREwDwYDVQQIDAhFY25pdm9ycDELMAkGA1UEBhMCWFgxHjAcBgkqhkiG
-9w0BCQEWD3RjYUBleGFtcGxlLmNvbTEaMBgGA1UECgwRVGVzdCBDQSBBdXRob3Jp
-dHkwHhcNMTUwMzExMTIwNjUxWhcNMjUwMzA4MTIwNjUxWjCBmzELMAkGA1UEBhMC
-WFgxDDAKBgNVBAoMA3RjYTERMA8GA1UECAwIRWNuaXZvcnAxDDAKBgNVBAsMA1RD
-QTEPMA0GA1UEAwwGQ2xpZW50MSEwHwYJKoZIhvcNAQkBFhJjbGllbnRAZXhhbXBs
-ZS5jb20xEzARBgNVBAUTCjcxMDEwMTIyNTUxFDASBgNVBC0DCwA3MTAxMDEyMjU1
-MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnQS0JLb8Dqy8V2mszkWk
-V8c/NPQcG3ivueXZHqOT9JTiPqrigGcLHtlmlaJ0aUUxix7q60aOds041TFyeknT
-SUFYY4ppOhiP+fOpWKPv4ZMwhSI2XzcgYhQSNHV0lIG1we9RAAfumomDMq7oMJhb
-EGf0ihibbwZXPUwBlm10GaB4K93PNY8Bz4ekBxzQ1WJkQ5LGsQnVZSuLnvp5dWSe
-J2axxyY4hPXR30jzEyZvy4kv4nzAu5lqZ5XKLrRO4TKwZrtr+CCPVkPJRE36rWYt
-tQaJEEpNOo0ZPpTtG6F8/tGh5r8jFx/f6wG+nyANJJ98kEP8i6TPjRrg+697mLcd
-iQIDAQABo3kwdzAJBgNVHRMEAjAAMDYGA1UdHwQvMC0wK6ApoCeGJWh0dHA6Ly9j
-cmwuZXhhbXBsZS5jb20vdGVzdF9jYV8wMS5jcmwwEwYDVR0lBAwwCgYIKwYBBQUH
-AwIwHQYDVR0RBBYwFIESY2xpZW50QGV4YW1wbGUuY29tMA0GCSqGSIb3DQEBBQUA
-A4IBAQBySELCnU8/PtGIG3dwhJENOSU5R7w8jpRXxHCuSBR+W6nuUCISz+z+EdF/
-A7AOJDASuS+4gkrSSmQhGFpf7E5VbF8trVZhLAZrXqKMcUreKH6v0I8MAUXmIs3G
-tqiBGf7pSYJN9DvVOOgANjdy6THuUzYv5qSvBZ4pNYEfHSlMNrV7niynd8dgPOML
-pA7GUfv5k2mMkMbSD15pTMgcavrBKYgyqcvF1C3qghfoL5+i38H8sKzF8hy7wHtE
-ESHtBq20RYA3m0UcA0e64GcanO2Ps/AQVBc7qMeHbqnqj3uUhtTkQcMUWnMgy1NR
-5RbzoLMOxq7hoOCyIaQeM/wgxeGE
------END CERTIFICATE-----
------BEGIN RSA PRIVATE KEY-----
-MIIEpAIBAAKCAQEAnQS0JLb8Dqy8V2mszkWkV8c/NPQcG3ivueXZHqOT9JTiPqri
-gGcLHtlmlaJ0aUUxix7q60aOds041TFyeknTSUFYY4ppOhiP+fOpWKPv4ZMwhSI2
-XzcgYhQSNHV0lIG1we9RAAfumomDMq7oMJhbEGf0ihibbwZXPUwBlm10GaB4K93P
-NY8Bz4ekBxzQ1WJkQ5LGsQnVZSuLnvp5dWSeJ2axxyY4hPXR30jzEyZvy4kv4nzA
-u5lqZ5XKLrRO4TKwZrtr+CCPVkPJRE36rWYttQaJEEpNOo0ZPpTtG6F8/tGh5r8j
-Fx/f6wG+nyANJJ98kEP8i6TPjRrg+697mLcdiQIDAQABAoIBAF7i3MnjGmbz080v
-OxJb23iAG54wdlvTjr3UPGTbjSmcXyxnsADQRFQcJHYAekCzY8EiqewL80OvuMx8
-2SU1P81hA70Dg5tsBHWT3Z6HUwsKG6QYjKr1cUhTwLyazhyAVgogSN6v7GzO9M3I
-DOBw8Xb0mz5oqGVre4S7TapN8n8ZG5oWm0XKGACXy0KbzY0KvWdkUzumFQ8X/ARE
-FsWyu+O69EbMqZRUKu45SrcubsdVGjOwseZHkmp5V6pc6Q/OrTHZqXJtDva5UIRq
-+Lof5scy9jiwwRnM/klvh23mz0ySU4YA3645m5KqyWR4YJCR1MnMANmXUSeYWfYz
-19+R1gECgYEAzm83lI7eIhTH38H0/jFpf3R7vNjPX3TR5waa4EXsCxhTOpoL89mR
-iNmzH0aOC4OR8rz/9PCnwmtH1lyQ4r/RokBmCp3pBxeWSlenFfV3rLCeEDo0Q/OL
-SX5DL4IbZD0VmNDt606WS7AEv93GhpN03Anw6kgHQUm1l030PR9DYZECgYEAwrgO
-/RyB/Ehw7smlysZb2sn1lvd6z8fg+pcu8ZNRKODaYCCOb8p1lnHrnIQdEmjhlmVp
-HAEuJ5jxCb+lyruV+dlx+0W/p6lHtKr0iBHG8EFkHnjN6Y+59Qu0HfSm0pZw7Ftr
-QcUDPuDJkTVUAvrZqciWlwzTWCC9KYXtasT+AHkCgYEAnP80dAUbpyvKvr/RxShr
-JYW/PWZegChmIp+BViOXWvDLC3xwrqm+5yc59QVBrjwH2WYn+26zB0dzwPFxNyHP
-GuiDMnvZ54zmve9foXGn7Gv+KjU53pvwSJqAGjeHAXr7W9c5uoVwBGv/kLPn8h1e
-+KGO2X6iFeMq+cFNiNan9iECgYBj+oGnsKWFVeS2ls8LyMGNGzmAZF2opiZ8RHgU
-DeIULS+zP8Qi3j92GdQyLxuGQlfiEvvfJzP9nOfWa5LC/4JIIUAHFo8LlT1+JHEe
-FJKi9dBkXP7NN8DxcyruXpnxctFUarQttuytslmMt2cFiKuOI7I+qJUzoMu/sEZx
-FeidcQKBgQCuralmtbl4nxjn3aR/ZgFTAKCL9WaJPh5hFJ9q4UuWxJdBX5z3Ey3/
-70ehLKYPumjmZtXynzz4BTWj1W9X+tgj/499uzV6LdQERGjT6WVy8xR9RELWW0an
-N9N1IAc4qTSjbI4EIMwMBSAoFfCux/jfDkG4g+RDnpV92sqxz2CtKg==
------END RSA PRIVATE KEY-----
\ No newline at end of file
diff --git a/tests/data_files/cert_example_multi.crt b/tests/data_files/cert_example_multi.crt
deleted file mode 100644
index c1e1998..0000000
--- a/tests/data_files/cert_example_multi.crt
+++ /dev/null
@@ -1,80 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 17 (0x11)
-    Signature Algorithm: sha1WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: May 10 13:23:41 2012 GMT
-            Not After : May 11 13:23:41 2022 GMT
-        Subject: C=NL, O=PolarSSL, CN=www.example.com
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-                Public-Key: (2048 bit)
-                Modulus:
-                    00:b9:3c:4a:c5:c8:a3:8e:90:17:a4:9e:52:aa:71:
-                    75:26:61:80:e7:c7:b5:6d:8c:ff:aa:b6:41:26:b7:
-                    be:11:ad:5c:73:16:0c:64:11:48:04:ff:d6:e1:3b:
-                    05:db:89:bb:b3:97:09:d5:1c:14:dd:68:87:39:b0:
-                    3d:71:cb:e2:76:d0:1a:d8:18:2d:80:1b:54:f6:e5:
-                    44:9a:f1:cb:af:61:2e:df:49:0d:9d:09:b7:ed:b1:
-                    fd:3c:fd:3c:fa:24:cf:5d:bf:7c:e4:53:e7:25:b5:
-                    ea:44:22:e9:26:d3:ea:20:94:9e:e6:61:67:ba:2e:
-                    07:67:0b:03:2f:a2:09:ed:f0:33:8f:0b:ce:10:ef:
-                    67:a4:c6:08:da:c1:ed:c2:3f:d7:4a:dd:15:3d:f9:
-                    5e:1c:81:60:46:3e:b5:b3:3d:2f:a6:de:47:1c:bc:
-                    92:ae:eb:df:27:6b:16:56:b7:dc:ec:d1:55:57:a5:
-                    6e:ec:75:25:f5:b7:7b:df:ab:d2:3a:5a:91:98:7d:
-                    97:17:0b:13:0a:a7:6b:4a:8b:c1:47:30:fb:3a:f8:
-                    41:04:d5:c1:df:b8:1d:bf:7b:01:a5:65:a2:e0:1e:
-                    36:b7:a6:5c:cc:30:5a:f8:cd:6f:cd:f1:19:62:25:
-                    ca:01:e3:35:7f:fa:20:f5:dc:fd:69:b2:6a:00:7d:
-                    17:f7
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                7D:E4:9C:6B:E6:F9:71:7D:46:D2:12:3D:AD:6B:1D:FD:C2:AA:78:4C
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-
-            X509v3 Subject Alternative Name: 
-                DNS:example.com, DNS:example.net, DNS:*.example.org
-    Signature Algorithm: sha1WithRSAEncryption
-         4f:09:cb:7a:d5:ee:f5:ef:62:0d:dc:7b:a2:85:d6:8c:ca:95:
-         b4:6b:da:11:5b:92:00:75:13:b9:ca:0b:ce:ea:fb:c3:1f:e2:
-         3f:7f:21:74:79:e2:e6:bc:da:06:e5:2f:6f:f6:55:c6:73:39:
-         cf:48:bc:0d:2f:0c:d2:7a:06:c3:4a:4c:d9:48:5d:a0:d0:73:
-         89:e4:d4:85:1d:96:9a:0e:57:99:c6:6f:1d:21:27:1f:8d:05:
-         29:e8:40:ae:82:39:68:c3:97:07:cf:3c:93:4c:1a:df:2f:a6:
-         a4:55:48:7f:7c:8c:1a:c9:22:da:24:cd:92:39:c6:8a:ec:b0:
-         8d:f5:69:82:67:cb:04:ee:de:53:41:96:c1:27:dc:2f:fe:33:
-         fa:d3:0e:b8:d4:32:a9:84:28:53:a5:f0:d1:89:d5:a2:98:e7:
-         16:91:bb:9c:c0:41:8e:8c:58:ac:ff:e3:dd:2e:7a:ab:b0:b9:
-         71:76:ad:0f:27:33:f7:a9:29:d3:c0:76:c0:bf:06:40:7c:0e:
-         d5:a4:7c:8a:e2:32:6e:16:ae:da:64:1f:b0:55:7c:db:dd:f1:
-         a4:ba:44:7c:b3:99:58:d2:34:6e:00:ea:97:6c:14:3a:f2:10:
-         1e:0a:a2:49:10:76:01:f4:f2:c8:18:fd:cc:63:46:12:8b:09:
-         1b:f1:94:e6
------BEGIN CERTIFICATE-----
-MIIDcjCCAlqgAwIBAgIBETANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTIwNTEwMTMyMzQxWhcNMjIwNTExMTMyMzQxWjA6MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxGDAWBgNVBAMTD3d3dy5leGFtcGxlLmNvbTCCASIwDQYJ
-KoZIhvcNAQEBBQADggEPADCCAQoCggEBALk8SsXIo46QF6SeUqpxdSZhgOfHtW2M
-/6q2QSa3vhGtXHMWDGQRSAT/1uE7BduJu7OXCdUcFN1ohzmwPXHL4nbQGtgYLYAb
-VPblRJrxy69hLt9JDZ0Jt+2x/Tz9PPokz12/fORT5yW16kQi6SbT6iCUnuZhZ7ou
-B2cLAy+iCe3wM48LzhDvZ6TGCNrB7cI/10rdFT35XhyBYEY+tbM9L6beRxy8kq7r
-3ydrFla33OzRVVelbux1JfW3e9+r0jpakZh9lxcLEwqna0qLwUcw+zr4QQTVwd+4
-Hb97AaVlouAeNremXMwwWvjNb83xGWIlygHjNX/6IPXc/WmyagB9F/cCAwEAAaOB
-gTB/MAkGA1UdEwQCMAAwHQYDVR0OBBYEFH3knGvm+XF9RtISPa1rHf3CqnhMMB8G
-A1UdIwQYMBaAFLRa5KWz3tJS9rnVppUP6z68x/3/MDIGA1UdEQQrMCmCC2V4YW1w
-bGUuY29tggtleGFtcGxlLm5ldIINKi5leGFtcGxlLm9yZzANBgkqhkiG9w0BAQUF
-AAOCAQEATwnLetXu9e9iDdx7ooXWjMqVtGvaEVuSAHUTucoLzur7wx/iP38hdHni
-5rzaBuUvb/ZVxnM5z0i8DS8M0noGw0pM2UhdoNBzieTUhR2Wmg5XmcZvHSEnH40F
-KehAroI5aMOXB888k0wa3y+mpFVIf3yMGski2iTNkjnGiuywjfVpgmfLBO7eU0GW
-wSfcL/4z+tMOuNQyqYQoU6Xw0YnVopjnFpG7nMBBjoxYrP/j3S56q7C5cXatDycz
-96kp08B2wL8GQHwO1aR8iuIybhau2mQfsFV8293xpLpEfLOZWNI0bgDql2wUOvIQ
-HgqiSRB2AfTyyBj9zGNGEosJG/GU5g==
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_example_multi_nocn.crt b/tests/data_files/cert_example_multi_nocn.crt
deleted file mode 100644
index 1634846..0000000
--- a/tests/data_files/cert_example_multi_nocn.crt
+++ /dev/null
@@ -1,13 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB/TCCAWagAwIBAgIJAPfGf/jpqWP5MA0GCSqGSIb3DQEBBQUAMA0xCzAJBgNV
-BAYTAk5MMB4XDTE0MDEyMjEwMDQzM1oXDTI0MDEyMjEwMDQzM1owDTELMAkGA1UE
-BhMCTkwwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAN0Rip+ZurBoyirqO2pt
-WZftTslU5A3uzqB9oB6q6A7CuxNA24oSjokTJKXF9frY9ZDXyMrLxf6THa/aEiNz
-UnlGGrqgVyt2FjGzqK/nOJsIi2OZOgol7kXSGFi6uZMa7dRYmmMbN/z3FAifhWVJ
-81kybdHg6G3eUu1mtKkL2kCVAgMBAAGjZTBjMAkGA1UdEwQCMAAwCwYDVR0PBAQD
-AgXgMEkGA1UdEQRCMECCHHd3dy5zaG90b2thbi1icmF1bnNjaHdlaWcuZGWCFHd3
-dy5tYXNzaW1vLWFiYXRlLmV1hwTAqAEBhwTAqEWQMA0GCSqGSIb3DQEBBQUAA4GB
-ABjx1ytrqCyFC5/0cjWnbLK9vsvLny2ZikDewfRxqJ5zAxGWLqHOr1SmUmu2DrvB
-bkT9g5z19+iMhPnzJz1x7Q2m7WTIJTuUPK+hKZJATDLNhZ86h5Nkw8k9YzKcOrPm
-EIqsy55CSgLU0ntljqSBvSb4ifrF1NnIWej2lSfN6r+3
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_example_wildcard.crt b/tests/data_files/cert_example_wildcard.crt
deleted file mode 100644
index 4895e8a..0000000
--- a/tests/data_files/cert_example_wildcard.crt
+++ /dev/null
@@ -1,77 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 12 (0xc)
-        Signature Algorithm: sha1WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb  7 16:06:36 2012 GMT
-            Not After : Feb  7 16:06:36 2022 GMT
-        Subject: C=NL, O=PolarSSL, CN=*.example.com
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-                Public-Key: (2048 bit)
-                Modulus:
-                    00:b9:3c:4a:c5:c8:a3:8e:90:17:a4:9e:52:aa:71:
-                    75:26:61:80:e7:c7:b5:6d:8c:ff:aa:b6:41:26:b7:
-                    be:11:ad:5c:73:16:0c:64:11:48:04:ff:d6:e1:3b:
-                    05:db:89:bb:b3:97:09:d5:1c:14:dd:68:87:39:b0:
-                    3d:71:cb:e2:76:d0:1a:d8:18:2d:80:1b:54:f6:e5:
-                    44:9a:f1:cb:af:61:2e:df:49:0d:9d:09:b7:ed:b1:
-                    fd:3c:fd:3c:fa:24:cf:5d:bf:7c:e4:53:e7:25:b5:
-                    ea:44:22:e9:26:d3:ea:20:94:9e:e6:61:67:ba:2e:
-                    07:67:0b:03:2f:a2:09:ed:f0:33:8f:0b:ce:10:ef:
-                    67:a4:c6:08:da:c1:ed:c2:3f:d7:4a:dd:15:3d:f9:
-                    5e:1c:81:60:46:3e:b5:b3:3d:2f:a6:de:47:1c:bc:
-                    92:ae:eb:df:27:6b:16:56:b7:dc:ec:d1:55:57:a5:
-                    6e:ec:75:25:f5:b7:7b:df:ab:d2:3a:5a:91:98:7d:
-                    97:17:0b:13:0a:a7:6b:4a:8b:c1:47:30:fb:3a:f8:
-                    41:04:d5:c1:df:b8:1d:bf:7b:01:a5:65:a2:e0:1e:
-                    36:b7:a6:5c:cc:30:5a:f8:cd:6f:cd:f1:19:62:25:
-                    ca:01:e3:35:7f:fa:20:f5:dc:fd:69:b2:6a:00:7d:
-                    17:f7
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                7D:E4:9C:6B:E6:F9:71:7D:46:D2:12:3D:AD:6B:1D:FD:C2:AA:78:4C
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-
-    Signature Algorithm: sha1WithRSAEncryption
-        91:b3:84:5c:5d:60:f2:a5:0a:4a:dc:d6:c6:75:da:34:52:72:
-        6c:0e:60:4f:ef:0e:55:f3:4b:bf:d0:40:e7:91:2c:a7:94:8f:
-        3d:db:0a:ec:b2:f5:83:a7:a1:33:61:96:37:57:14:80:5b:e7:
-        bc:e1:d3:2c:36:32:6f:ef:7a:00:99:33:15:fc:38:20:df:74:
-        7d:3d:0f:81:d0:b4:fd:b6:46:f1:c5:b8:bc:de:74:a2:41:a7:
-        c8:51:da:20:12:82:3e:0c:8c:48:da:19:b6:52:e9:4f:67:c1:
-        28:9e:20:b6:ce:be:89:bd:64:d7:05:3e:87:af:ba:2b:5d:aa:
-        fe:62:66:fb:a6:75:ad:89:a1:18:e8:78:54:ea:df:0a:85:e9:
-        32:32:a8:1a:cd:35:81:f8:a8:da:d1:16:8a:63:e7:67:da:6e:
-        e1:3b:1c:31:20:99:ee:e2:b2:fb:82:c5:21:e2:63:4c:61:15:
-        4d:53:ad:dd:15:7f:0b:b6:33:43:ad:27:8a:b1:af:93:17:72:
-        c4:be:31:26:93:3c:7d:fc:d5:3d:cf:0b:be:c5:7b:e9:b4:f8:
-        f3:30:f2:f5:a2:27:eb:9a:71:fc:7f:79:5e:88:c5:a6:2d:33:
-        57:ba:38:06:e6:ad:0b:96:97:9d:cc:94:7b:83:09:17:a6:ee:
-        ce:bb:0f:36
------BEGIN CERTIFICATE-----
-MIIDOzCCAiOgAwIBAgIBDDANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTIwMjA3MTYwNjM2WhcNMjIwMjA3MTYwNjM2WjA4MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxFjAUBgNVBAMUDSouZXhhbXBsZS5jb20wggEiMA0GCSqG
-SIb3DQEBAQUAA4IBDwAwggEKAoIBAQC5PErFyKOOkBeknlKqcXUmYYDnx7VtjP+q
-tkEmt74RrVxzFgxkEUgE/9bhOwXbibuzlwnVHBTdaIc5sD1xy+J20BrYGC2AG1T2
-5USa8cuvYS7fSQ2dCbftsf08/Tz6JM9dv3zkU+cltepEIukm0+oglJ7mYWe6Lgdn
-CwMvognt8DOPC84Q72ekxgjawe3CP9dK3RU9+V4cgWBGPrWzPS+m3kccvJKu698n
-axZWt9zs0VVXpW7sdSX1t3vfq9I6WpGYfZcXCxMKp2tKi8FHMPs6+EEE1cHfuB2/
-ewGlZaLgHja3plzMMFr4zW/N8RliJcoB4zV/+iD13P1psmoAfRf3AgMBAAGjTTBL
-MAkGA1UdEwQCMAAwHQYDVR0OBBYEFH3knGvm+XF9RtISPa1rHf3CqnhMMB8GA1Ud
-IwQYMBaAFLRa5KWz3tJS9rnVppUP6z68x/3/MA0GCSqGSIb3DQEBBQUAA4IBAQCR
-s4RcXWDypQpK3NbGddo0UnJsDmBP7w5V80u/0EDnkSynlI892wrssvWDp6EzYZY3
-VxSAW+e84dMsNjJv73oAmTMV/Dgg33R9PQ+B0LT9tkbxxbi83nSiQafIUdogEoI+
-DIxI2hm2UulPZ8EoniC2zr6JvWTXBT6Hr7orXar+Ymb7pnWtiaEY6HhU6t8Kheky
-MqgazTWB+Kja0RaKY+dn2m7hOxwxIJnu4rL7gsUh4mNMYRVNU63dFX8LtjNDrSeK
-sa+TF3LEvjEmkzx9/NU9zwu+xXvptPjzMPL1oifrmnH8f3leiMWmLTNXujgG5q0L
-lpedzJR7gwkXpu7Ouw82
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_md2.crt b/tests/data_files/cert_md2.crt
deleted file mode 100644
index bfea77b..0000000
--- a/tests/data_files/cert_md2.crt
+++ /dev/null
@@ -1,77 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 9 (0x9)
-        Signature Algorithm: md2WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Jul 12 10:56:59 2009 GMT
-            Not After : Jul 12 10:56:59 2011 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Cert MD2
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:dc:13:74:81:c6:12:f6:67:5d:a1:66:72:ed:dc:
-                    79:b6:58:5c:32:58:b3:d4:14:fd:6c:02:61:9e:0b:
-                    99:46:63:a3:0a:41:d4:42:33:21:e6:ed:43:07:5a:
-                    1d:a2:3b:64:29:a8:2a:c1:66:28:00:59:d8:0c:49:
-                    2d:30:b7:3d:8c:bb:60:62:31:83:27:7f:4b:95:92:
-                    2e:a0:d6:c6:84:94:4b:b3:e4:a6:cc:ff:32:3a:c5:
-                    ec:4c:c9:24:58:bf:b3:33:77:6a:b5:17:8b:02:10:
-                    29:8e:95:aa:91:60:17:43:42:87:a8:7c:da:09:83:
-                    98:9d:7a:65:5e:20:52:07:2e:65:a5:31:fd:d9:74:
-                    1e:00:c9:ae:9d:81:56:8b:08:0a:f5:1e:9c:dc:a2:
-                    5e:6c:db:ff:11:83:15:f4:d1:24:57:9b:0f:eb:35:
-                    c9:f1:aa:46:4e:74:7f:fe:1d:b0:91:1f:89:4a:84:
-                    cb:df:75:e3:cd:77:82:62:09:e5:9f:6d:29:de:2e:
-                    25:d8:48:b6:20:be:51:97:4c:2d:20:65:2d:2a:50:
-                    9e:24:5d:72:95:e0:a2:06:41:8c:61:e4:50:57:74:
-                    96:b1:29:b5:a1:88:37:f1:5c:9e:b2:9e:8e:83:8d:
-                    72:3b:b5:5c:fe:bb:12:89:72:5c:a1:f9:d8:18:29:
-                    b2:27
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                B7:51:D4:E5:20:D5:45:54:F4:C5:51:1B:E0:82:B5:61:05:AF:9B:B6
-            X509v3 Authority Key Identifier: 
-                keyid:CF:22:31:27:91:D8:C2:54:FF:1E:DA:D9:EE:8A:C5:89:32:AD:0C:21
-
-    Signature Algorithm: md2WithRSAEncryption
-        28:5a:dd:48:fb:ec:80:fe:de:b7:20:c0:4c:05:a9:4b:51:e9:
-        a7:d1:4b:5e:76:42:d2:5d:9a:14:19:3b:cb:f9:91:d7:0f:11:
-        c9:cd:dd:00:8b:2c:76:73:22:a0:19:49:81:63:40:30:48:27:
-        62:90:ca:b8:dc:33:35:b3:4b:58:ca:dc:07:66:87:2e:ea:44:
-        2a:6a:13:67:7a:32:5e:48:1d:88:88:c5:70:e6:e7:ec:1b:2f:
-        a7:f4:61:71:29:f6:66:93:30:60:7e:b3:4c:01:c8:2c:53:ce:
-        00:11:ec:bf:f6:f2:ce:51:97:d8:ed:ed:dc:c9:6b:b8:19:15:
-        c8:9a:61:6d:12:9a:99:25:d8:03:1d:a6:4c:20:a5:f8:46:a3:
-        05:32:bb:1a:8e:1a:65:0d:f3:13:35:1d:6f:73:28:31:12:d7:
-        c4:9e:73:a0:a7:ce:82:25:d1:40:e8:1b:77:60:f3:3e:81:7f:
-        19:ee:cf:97:4d:c8:c3:35:9b:72:98:3b:c3:35:43:14:0a:04:
-        21:7b:f7:db:e6:5f:ce:21:d1:ce:bf:b7:ef:c1:63:21:c2:78:
-        e1:37:aa:b1:e0:31:b3:b6:63:4c:fd:66:c8:e6:cf:f8:d9:97:
-        2f:cf:92:81:3f:d4:bf:ec:e2:ad:6e:39:c7:a6:a8:e0:32:b0:
-        2e:0d:e1:30
------BEGIN CERTIFICATE-----
-MIIDPzCCAiegAwIBAgIBCTANBgkqhkiG9w0BAQIFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MDkwNzEyMTA1NjU5WhcNMTEwNzEyMTA1NjU5WjA8MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxGjAYBgNVBAMTEVBvbGFyU1NMIENlcnQgTUQyMIIBIjAN
-BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3BN0gcYS9mddoWZy7dx5tlhcMliz
-1BT9bAJhnguZRmOjCkHUQjMh5u1DB1odojtkKagqwWYoAFnYDEktMLc9jLtgYjGD
-J39LlZIuoNbGhJRLs+SmzP8yOsXsTMkkWL+zM3dqtReLAhApjpWqkWAXQ0KHqHza
-CYOYnXplXiBSBy5lpTH92XQeAMmunYFWiwgK9R6c3KJebNv/EYMV9NEkV5sP6zXJ
-8apGTnR//h2wkR+JSoTL33XjzXeCYgnln20p3i4l2Ei2IL5Rl0wtIGUtKlCeJF1y
-leCiBkGMYeRQV3SWsSm1oYg38Vyesp6Og41yO7Vc/rsSiXJcofnYGCmyJwIDAQAB
-o00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBS3UdTlINVFVPTFURvggrVhBa+btjAf
-BgNVHSMEGDAWgBTPIjEnkdjCVP8e2tnuisWJMq0MITANBgkqhkiG9w0BAQIFAAOC
-AQEAKFrdSPvsgP7etyDATAWpS1Hpp9FLXnZC0l2aFBk7y/mR1w8Ryc3dAIssdnMi
-oBlJgWNAMEgnYpDKuNwzNbNLWMrcB2aHLupEKmoTZ3oyXkgdiIjFcObn7Bsvp/Rh
-cSn2ZpMwYH6zTAHILFPOABHsv/byzlGX2O3t3MlruBkVyJphbRKamSXYAx2mTCCl
-+EajBTK7Go4aZQ3zEzUdb3MoMRLXxJ5zoKfOgiXRQOgbd2DzPoF/Ge7Pl03IwzWb
-cpg7wzVDFAoEIXv32+ZfziHRzr+378FjIcJ44TeqseAxs7ZjTP1myObP+NmXL8+S
-gT/Uv+zirW45x6ao4DKwLg3hMA==
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_md4.crt b/tests/data_files/cert_md4.crt
deleted file mode 100644
index 16f166b..0000000
--- a/tests/data_files/cert_md4.crt
+++ /dev/null
@@ -1,77 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 5 (0x5)
-        Signature Algorithm: md4WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:07 2011 GMT
-            Not After : Feb 12 14:44:07 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Cert MD4
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:b9:3c:4a:c5:c8:a3:8e:90:17:a4:9e:52:aa:71:
-                    75:26:61:80:e7:c7:b5:6d:8c:ff:aa:b6:41:26:b7:
-                    be:11:ad:5c:73:16:0c:64:11:48:04:ff:d6:e1:3b:
-                    05:db:89:bb:b3:97:09:d5:1c:14:dd:68:87:39:b0:
-                    3d:71:cb:e2:76:d0:1a:d8:18:2d:80:1b:54:f6:e5:
-                    44:9a:f1:cb:af:61:2e:df:49:0d:9d:09:b7:ed:b1:
-                    fd:3c:fd:3c:fa:24:cf:5d:bf:7c:e4:53:e7:25:b5:
-                    ea:44:22:e9:26:d3:ea:20:94:9e:e6:61:67:ba:2e:
-                    07:67:0b:03:2f:a2:09:ed:f0:33:8f:0b:ce:10:ef:
-                    67:a4:c6:08:da:c1:ed:c2:3f:d7:4a:dd:15:3d:f9:
-                    5e:1c:81:60:46:3e:b5:b3:3d:2f:a6:de:47:1c:bc:
-                    92:ae:eb:df:27:6b:16:56:b7:dc:ec:d1:55:57:a5:
-                    6e:ec:75:25:f5:b7:7b:df:ab:d2:3a:5a:91:98:7d:
-                    97:17:0b:13:0a:a7:6b:4a:8b:c1:47:30:fb:3a:f8:
-                    41:04:d5:c1:df:b8:1d:bf:7b:01:a5:65:a2:e0:1e:
-                    36:b7:a6:5c:cc:30:5a:f8:cd:6f:cd:f1:19:62:25:
-                    ca:01:e3:35:7f:fa:20:f5:dc:fd:69:b2:6a:00:7d:
-                    17:f7
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                7D:E4:9C:6B:E6:F9:71:7D:46:D2:12:3D:AD:6B:1D:FD:C2:AA:78:4C
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-
-    Signature Algorithm: md4WithRSAEncryption
-        94:db:e1:86:71:2d:43:d6:51:61:a7:95:bc:e8:73:da:ff:e4:
-        fd:41:0f:5c:de:14:f4:c4:ba:5d:2c:30:2c:a6:dc:2d:e8:87:
-        45:f1:c5:fe:d1:4a:64:99:19:09:2f:72:7c:3f:8d:c8:31:22:
-        dd:0a:69:03:3d:12:8c:4d:c3:f7:a3:c5:d1:5d:c9:ff:4b:83:
-        6b:d6:b4:e5:d8:ce:94:5e:ec:bf:68:c5:b2:63:8e:5c:cb:f3:
-        8d:62:73:82:62:7e:df:db:7d:0b:8d:21:10:db:9a:a1:62:4d:
-        46:42:d1:bb:38:32:ef:c1:fc:a1:e2:7f:60:08:37:32:20:2c:
-        7c:a2:c9:12:0d:89:fe:2b:15:08:91:79:e2:a9:79:a4:da:cd:
-        81:43:01:e2:09:2d:1a:f4:16:ef:af:4d:50:46:5e:2d:dd:48:
-        27:10:c0:42:b7:a5:9e:c2:1f:6e:50:36:03:ed:95:77:9a:a3:
-        d9:4c:d7:23:93:b1:24:2a:63:27:28:7a:de:3d:59:d2:92:c8:
-        8f:f6:39:1d:65:ab:09:78:05:46:90:a9:f6:10:b1:ef:c8:8c:
-        4d:7d:8d:f2:78:b7:88:15:09:7e:df:e9:87:a8:64:c1:95:53:
-        fb:da:05:b7:62:bc:ad:fb:d9:a4:a9:06:6c:6b:98:01:b9:39:
-        78:d3:4e:87
------BEGIN CERTIFICATE-----
-MIIDPzCCAiegAwIBAgIBBTANBgkqhkiG9w0BAQMFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA3WhcNMjEwMjEyMTQ0NDA3WjA8MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxGjAYBgNVBAMTEVBvbGFyU1NMIENlcnQgTUQ0MIIBIjAN
-BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuTxKxcijjpAXpJ5SqnF1JmGA58e1
-bYz/qrZBJre+Ea1ccxYMZBFIBP/W4TsF24m7s5cJ1RwU3WiHObA9ccvidtAa2Bgt
-gBtU9uVEmvHLr2Eu30kNnQm37bH9PP08+iTPXb985FPnJbXqRCLpJtPqIJSe5mFn
-ui4HZwsDL6IJ7fAzjwvOEO9npMYI2sHtwj/XSt0VPfleHIFgRj61sz0vpt5HHLyS
-ruvfJ2sWVrfc7NFVV6Vu7HUl9bd736vSOlqRmH2XFwsTCqdrSovBRzD7OvhBBNXB
-37gdv3sBpWWi4B42t6ZczDBa+M1vzfEZYiXKAeM1f/og9dz9abJqAH0X9wIDAQAB
-o00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBR95Jxr5vlxfUbSEj2tax39wqp4TDAf
-BgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQMFAAOC
-AQEAlNvhhnEtQ9ZRYaeVvOhz2v/k/UEPXN4U9MS6XSwwLKbcLeiHRfHF/tFKZJkZ
-CS9yfD+NyDEi3QppAz0SjE3D96PF0V3J/0uDa9a05djOlF7sv2jFsmOOXMvzjWJz
-gmJ+39t9C40hENuaoWJNRkLRuzgy78H8oeJ/YAg3MiAsfKLJEg2J/isVCJF54ql5
-pNrNgUMB4gktGvQW769NUEZeLd1IJxDAQrelnsIfblA2A+2Vd5qj2UzXI5OxJCpj
-Jyh63j1Z0pLIj/Y5HWWrCXgFRpCp9hCx78iMTX2N8ni3iBUJft/ph6hkwZVT+9oF
-t2K8rfvZpKkGbGuYAbk5eNNOhw==
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_md5.crt b/tests/data_files/cert_md5.crt
deleted file mode 100644
index 13d43f1..0000000
--- a/tests/data_files/cert_md5.crt
+++ /dev/null
@@ -1,77 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 6 (0x6)
-        Signature Algorithm: md5WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:07 2011 GMT
-            Not After : Feb 12 14:44:07 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Cert MD5
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:b9:3c:4a:c5:c8:a3:8e:90:17:a4:9e:52:aa:71:
-                    75:26:61:80:e7:c7:b5:6d:8c:ff:aa:b6:41:26:b7:
-                    be:11:ad:5c:73:16:0c:64:11:48:04:ff:d6:e1:3b:
-                    05:db:89:bb:b3:97:09:d5:1c:14:dd:68:87:39:b0:
-                    3d:71:cb:e2:76:d0:1a:d8:18:2d:80:1b:54:f6:e5:
-                    44:9a:f1:cb:af:61:2e:df:49:0d:9d:09:b7:ed:b1:
-                    fd:3c:fd:3c:fa:24:cf:5d:bf:7c:e4:53:e7:25:b5:
-                    ea:44:22:e9:26:d3:ea:20:94:9e:e6:61:67:ba:2e:
-                    07:67:0b:03:2f:a2:09:ed:f0:33:8f:0b:ce:10:ef:
-                    67:a4:c6:08:da:c1:ed:c2:3f:d7:4a:dd:15:3d:f9:
-                    5e:1c:81:60:46:3e:b5:b3:3d:2f:a6:de:47:1c:bc:
-                    92:ae:eb:df:27:6b:16:56:b7:dc:ec:d1:55:57:a5:
-                    6e:ec:75:25:f5:b7:7b:df:ab:d2:3a:5a:91:98:7d:
-                    97:17:0b:13:0a:a7:6b:4a:8b:c1:47:30:fb:3a:f8:
-                    41:04:d5:c1:df:b8:1d:bf:7b:01:a5:65:a2:e0:1e:
-                    36:b7:a6:5c:cc:30:5a:f8:cd:6f:cd:f1:19:62:25:
-                    ca:01:e3:35:7f:fa:20:f5:dc:fd:69:b2:6a:00:7d:
-                    17:f7
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                7D:E4:9C:6B:E6:F9:71:7D:46:D2:12:3D:AD:6B:1D:FD:C2:AA:78:4C
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-
-    Signature Algorithm: md5WithRSAEncryption
-        92:13:81:0c:ff:ac:ab:98:52:6c:28:c9:c6:3e:80:c6:ec:77:
-        d0:13:e1:a2:29:1d:2f:b7:c5:95:41:83:60:d9:50:9c:d0:d6:
-        09:f7:0f:97:cd:c0:e6:b2:68:fa:31:c9:2a:a3:d3:1e:53:ae:
-        79:dc:35:ba:b0:d9:e5:7a:37:1b:2a:92:fa:d2:59:90:43:1b:
-        6a:91:c1:db:36:da:e9:39:d3:f5:ac:e3:46:01:ca:55:04:17:
-        1a:b1:97:28:e8:ff:1b:e7:e1:10:c9:b5:31:d8:ce:a6:89:6a:
-        4a:df:78:7b:02:2f:83:b3:41:d5:ef:0b:b6:44:ff:32:a6:cf:
-        1b:c2:f4:b0:75:66:a9:da:6f:7c:a5:e3:c6:c1:3a:2f:bf:f8:
-        12:6f:04:2c:37:f2:4e:fc:b9:09:ff:a4:5b:40:19:e9:58:91:
-        64:82:d6:ad:b9:7f:c0:12:c2:ce:b7:b6:ba:fb:10:a2:3f:74:
-        97:10:39:d4:dc:4a:e5:5c:f7:e5:3a:d9:68:d7:17:6b:f5:51:
-        08:b4:a2:30:0d:cc:36:10:6d:4e:1d:22:cc:48:d1:38:44:ba:
-        cc:2b:47:99:f7:c6:8b:41:24:f3:f1:2c:10:1a:f2:88:bb:b2:
-        e0:fd:44:26:3d:ad:ea:af:1d:d0:00:56:41:4e:f4:b0:3b:9d:
-        32:6f:48:c7
------BEGIN CERTIFICATE-----
-MIIDPzCCAiegAwIBAgIBBjANBgkqhkiG9w0BAQQFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA3WhcNMjEwMjEyMTQ0NDA3WjA8MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxGjAYBgNVBAMTEVBvbGFyU1NMIENlcnQgTUQ1MIIBIjAN
-BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuTxKxcijjpAXpJ5SqnF1JmGA58e1
-bYz/qrZBJre+Ea1ccxYMZBFIBP/W4TsF24m7s5cJ1RwU3WiHObA9ccvidtAa2Bgt
-gBtU9uVEmvHLr2Eu30kNnQm37bH9PP08+iTPXb985FPnJbXqRCLpJtPqIJSe5mFn
-ui4HZwsDL6IJ7fAzjwvOEO9npMYI2sHtwj/XSt0VPfleHIFgRj61sz0vpt5HHLyS
-ruvfJ2sWVrfc7NFVV6Vu7HUl9bd736vSOlqRmH2XFwsTCqdrSovBRzD7OvhBBNXB
-37gdv3sBpWWi4B42t6ZczDBa+M1vzfEZYiXKAeM1f/og9dz9abJqAH0X9wIDAQAB
-o00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBR95Jxr5vlxfUbSEj2tax39wqp4TDAf
-BgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQQFAAOC
-AQEAkhOBDP+sq5hSbCjJxj6Axux30BPhoikdL7fFlUGDYNlQnNDWCfcPl83A5rJo
-+jHJKqPTHlOuedw1urDZ5Xo3GyqS+tJZkEMbapHB2zba6TnT9azjRgHKVQQXGrGX
-KOj/G+fhEMm1MdjOpolqSt94ewIvg7NB1e8LtkT/MqbPG8L0sHVmqdpvfKXjxsE6
-L7/4Em8ELDfyTvy5Cf+kW0AZ6ViRZILWrbl/wBLCzre2uvsQoj90lxA51NxK5Vz3
-5TrZaNcXa/VRCLSiMA3MNhBtTh0izEjROES6zCtHmffGi0Ek8/EsEBryiLuy4P1E
-Jj2t6q8d0ABWQU70sDudMm9Ixw==
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_sha1.crt b/tests/data_files/cert_sha1.crt
deleted file mode 100644
index 718b2f2..0000000
--- a/tests/data_files/cert_sha1.crt
+++ /dev/null
@@ -1,77 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 7 (0x7)
-        Signature Algorithm: sha1WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:07 2011 GMT
-            Not After : Feb 12 14:44:07 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Cert SHA1
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:b9:3c:4a:c5:c8:a3:8e:90:17:a4:9e:52:aa:71:
-                    75:26:61:80:e7:c7:b5:6d:8c:ff:aa:b6:41:26:b7:
-                    be:11:ad:5c:73:16:0c:64:11:48:04:ff:d6:e1:3b:
-                    05:db:89:bb:b3:97:09:d5:1c:14:dd:68:87:39:b0:
-                    3d:71:cb:e2:76:d0:1a:d8:18:2d:80:1b:54:f6:e5:
-                    44:9a:f1:cb:af:61:2e:df:49:0d:9d:09:b7:ed:b1:
-                    fd:3c:fd:3c:fa:24:cf:5d:bf:7c:e4:53:e7:25:b5:
-                    ea:44:22:e9:26:d3:ea:20:94:9e:e6:61:67:ba:2e:
-                    07:67:0b:03:2f:a2:09:ed:f0:33:8f:0b:ce:10:ef:
-                    67:a4:c6:08:da:c1:ed:c2:3f:d7:4a:dd:15:3d:f9:
-                    5e:1c:81:60:46:3e:b5:b3:3d:2f:a6:de:47:1c:bc:
-                    92:ae:eb:df:27:6b:16:56:b7:dc:ec:d1:55:57:a5:
-                    6e:ec:75:25:f5:b7:7b:df:ab:d2:3a:5a:91:98:7d:
-                    97:17:0b:13:0a:a7:6b:4a:8b:c1:47:30:fb:3a:f8:
-                    41:04:d5:c1:df:b8:1d:bf:7b:01:a5:65:a2:e0:1e:
-                    36:b7:a6:5c:cc:30:5a:f8:cd:6f:cd:f1:19:62:25:
-                    ca:01:e3:35:7f:fa:20:f5:dc:fd:69:b2:6a:00:7d:
-                    17:f7
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                7D:E4:9C:6B:E6:F9:71:7D:46:D2:12:3D:AD:6B:1D:FD:C2:AA:78:4C
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-
-    Signature Algorithm: sha1WithRSAEncryption
-        93:26:40:68:3d:e7:62:ea:d1:6a:78:2b:c2:07:f3:0d:3b:f6:
-        69:18:cd:08:5e:31:e7:48:60:08:2a:46:b6:de:d1:35:0a:ec:
-        31:36:83:7d:eb:7c:d8:63:09:c3:e4:c5:10:ca:7c:7b:2f:20:
-        4d:d2:0e:5f:ee:09:e3:84:4f:28:cc:08:74:9a:11:23:5f:de:
-        0e:3a:0f:8b:2d:64:91:05:f6:d5:c7:30:c8:20:ee:6c:c4:62:
-        7c:8d:a8:4d:2e:70:8c:ac:b5:5d:de:9b:10:5c:98:fd:a1:78:
-        9b:9c:f0:73:33:de:2f:8c:59:fa:dc:af:4c:df:97:e3:9d:00:
-        37:9a:fa:d3:67:77:b9:2f:b9:4a:23:ad:f9:b4:a1:b7:ac:c5:
-        a8:0f:62:8c:e6:7e:b4:94:2a:db:f2:fc:52:92:a4:9e:4e:51:
-        4f:9d:c0:ce:ae:3d:17:1c:94:6c:5f:e8:16:b5:ce:2e:e2:5a:
-        cf:6a:db:dd:b0:d4:be:62:a5:46:92:30:7c:7c:fc:05:f8:78:
-        30:93:30:28:ab:69:a1:72:31:dc:3b:97:63:3a:5b:b3:e1:34:
-        86:80:4a:28:f5:dc:d5:84:8c:13:a4:6c:d2:c1:2d:a6:25:d7:
-        6f:c9:93:78:a5:16:ba:d9:17:6e:3e:ca:96:f2:9e:5c:e3:ae:
-        12:2e:a5:11
------BEGIN CERTIFICATE-----
-MIIDQDCCAiigAwIBAgIBBzANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA3WhcNMjEwMjEyMTQ0NDA3WjA9MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxGzAZBgNVBAMTElBvbGFyU1NMIENlcnQgU0hBMTCCASIw
-DQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALk8SsXIo46QF6SeUqpxdSZhgOfH
-tW2M/6q2QSa3vhGtXHMWDGQRSAT/1uE7BduJu7OXCdUcFN1ohzmwPXHL4nbQGtgY
-LYAbVPblRJrxy69hLt9JDZ0Jt+2x/Tz9PPokz12/fORT5yW16kQi6SbT6iCUnuZh
-Z7ouB2cLAy+iCe3wM48LzhDvZ6TGCNrB7cI/10rdFT35XhyBYEY+tbM9L6beRxy8
-kq7r3ydrFla33OzRVVelbux1JfW3e9+r0jpakZh9lxcLEwqna0qLwUcw+zr4QQTV
-wd+4Hb97AaVlouAeNremXMwwWvjNb83xGWIlygHjNX/6IPXc/WmyagB9F/cCAwEA
-AaNNMEswCQYDVR0TBAIwADAdBgNVHQ4EFgQUfeSca+b5cX1G0hI9rWsd/cKqeEww
-HwYDVR0jBBgwFoAUtFrkpbPe0lL2udWmlQ/rPrzH/f8wDQYJKoZIhvcNAQEFBQAD
-ggEBAJMmQGg952Lq0Wp4K8IH8w079mkYzQheMedIYAgqRrbe0TUK7DE2g33rfNhj
-CcPkxRDKfHsvIE3SDl/uCeOETyjMCHSaESNf3g46D4stZJEF9tXHMMgg7mzEYnyN
-qE0ucIystV3emxBcmP2heJuc8HMz3i+MWfrcr0zfl+OdADea+tNnd7kvuUojrfm0
-obesxagPYozmfrSUKtvy/FKSpJ5OUU+dwM6uPRcclGxf6Ba1zi7iWs9q292w1L5i
-pUaSMHx8/AX4eDCTMCiraaFyMdw7l2M6W7PhNIaASij13NWEjBOkbNLBLaYl12/J
-k3ilFrrZF24+ypbynlzjrhIupRE=
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_sha224.crt b/tests/data_files/cert_sha224.crt
deleted file mode 100644
index 7283c28..0000000
--- a/tests/data_files/cert_sha224.crt
+++ /dev/null
@@ -1,77 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 8 (0x8)
-        Signature Algorithm: sha224WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:07 2011 GMT
-            Not After : Feb 12 14:44:07 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Cert SHA224
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:b9:3c:4a:c5:c8:a3:8e:90:17:a4:9e:52:aa:71:
-                    75:26:61:80:e7:c7:b5:6d:8c:ff:aa:b6:41:26:b7:
-                    be:11:ad:5c:73:16:0c:64:11:48:04:ff:d6:e1:3b:
-                    05:db:89:bb:b3:97:09:d5:1c:14:dd:68:87:39:b0:
-                    3d:71:cb:e2:76:d0:1a:d8:18:2d:80:1b:54:f6:e5:
-                    44:9a:f1:cb:af:61:2e:df:49:0d:9d:09:b7:ed:b1:
-                    fd:3c:fd:3c:fa:24:cf:5d:bf:7c:e4:53:e7:25:b5:
-                    ea:44:22:e9:26:d3:ea:20:94:9e:e6:61:67:ba:2e:
-                    07:67:0b:03:2f:a2:09:ed:f0:33:8f:0b:ce:10:ef:
-                    67:a4:c6:08:da:c1:ed:c2:3f:d7:4a:dd:15:3d:f9:
-                    5e:1c:81:60:46:3e:b5:b3:3d:2f:a6:de:47:1c:bc:
-                    92:ae:eb:df:27:6b:16:56:b7:dc:ec:d1:55:57:a5:
-                    6e:ec:75:25:f5:b7:7b:df:ab:d2:3a:5a:91:98:7d:
-                    97:17:0b:13:0a:a7:6b:4a:8b:c1:47:30:fb:3a:f8:
-                    41:04:d5:c1:df:b8:1d:bf:7b:01:a5:65:a2:e0:1e:
-                    36:b7:a6:5c:cc:30:5a:f8:cd:6f:cd:f1:19:62:25:
-                    ca:01:e3:35:7f:fa:20:f5:dc:fd:69:b2:6a:00:7d:
-                    17:f7
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                7D:E4:9C:6B:E6:F9:71:7D:46:D2:12:3D:AD:6B:1D:FD:C2:AA:78:4C
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-
-    Signature Algorithm: sha224WithRSAEncryption
-        b8:9b:0a:d1:b4:d1:a4:ce:05:39:42:7a:3b:7b:5e:fd:97:57:
-        8a:36:60:42:39:d0:e6:0c:9c:7e:2f:2b:be:ef:e7:45:34:77:
-        48:7a:10:4a:fd:76:ca:42:39:25:3c:fa:19:f8:63:6c:e7:36:
-        27:9a:ec:06:ce:e4:f7:2c:2e:c6:36:c1:25:bd:ab:09:aa:e2:
-        da:4e:de:ae:b5:f5:ba:9e:90:24:52:34:96:96:61:4c:26:b5:
-        57:65:b1:10:ed:13:2b:54:90:ce:d3:21:cb:8c:d3:4c:6c:e5:
-        e1:78:22:16:3f:e1:be:f1:ee:5d:39:48:a1:e6:80:46:f4:46:
-        f2:79:03:3e:f1:fc:51:47:d9:05:e8:85:81:1b:0b:4f:fa:85:
-        9d:ce:e7:76:5a:6f:da:98:9f:43:f1:f3:2f:2f:57:28:aa:70:
-        14:82:7f:d5:69:14:8c:f9:82:b6:2f:a6:df:b5:6b:0e:43:c9:
-        96:91:64:3d:8b:a8:17:15:9a:88:42:a4:d0:90:c0:a3:a2:e1:
-        dd:f6:95:6d:3b:9d:71:a6:1e:9e:2c:1e:db:f6:5f:93:43:2c:
-        ed:53:70:55:50:56:df:cd:96:6c:d5:91:0f:b1:a7:f4:b7:17:
-        9d:1f:0b:f6:0b:f8:fe:e7:7c:de:c1:20:b7:fc:69:13:ba:e2:
-        61:9b:a5:62
------BEGIN CERTIFICATE-----
-MIIDQjCCAiqgAwIBAgIBCDANBgkqhkiG9w0BAQ4FADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA3WhcNMjEwMjEyMTQ0NDA3WjA/MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHTAbBgNVBAMTFFBvbGFyU1NMIENlcnQgU0hBMjI0MIIB
-IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuTxKxcijjpAXpJ5SqnF1JmGA
-58e1bYz/qrZBJre+Ea1ccxYMZBFIBP/W4TsF24m7s5cJ1RwU3WiHObA9ccvidtAa
-2BgtgBtU9uVEmvHLr2Eu30kNnQm37bH9PP08+iTPXb985FPnJbXqRCLpJtPqIJSe
-5mFnui4HZwsDL6IJ7fAzjwvOEO9npMYI2sHtwj/XSt0VPfleHIFgRj61sz0vpt5H
-HLySruvfJ2sWVrfc7NFVV6Vu7HUl9bd736vSOlqRmH2XFwsTCqdrSovBRzD7OvhB
-BNXB37gdv3sBpWWi4B42t6ZczDBa+M1vzfEZYiXKAeM1f/og9dz9abJqAH0X9wID
-AQABo00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBR95Jxr5vlxfUbSEj2tax39wqp4
-TDAfBgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQ4F
-AAOCAQEAuJsK0bTRpM4FOUJ6O3te/ZdXijZgQjnQ5gycfi8rvu/nRTR3SHoQSv12
-ykI5JTz6GfhjbOc2J5rsBs7k9ywuxjbBJb2rCari2k7errX1up6QJFI0lpZhTCa1
-V2WxEO0TK1SQztMhy4zTTGzl4XgiFj/hvvHuXTlIoeaARvRG8nkDPvH8UUfZBeiF
-gRsLT/qFnc7ndlpv2pifQ/HzLy9XKKpwFIJ/1WkUjPmCti+m37VrDkPJlpFkPYuo
-FxWaiEKk0JDAo6Lh3faVbTudcaYeniwe2/Zfk0Ms7VNwVVBW382WbNWRD7Gn9LcX
-nR8L9gv4/ud83sEgt/xpE7riYZulYg==
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_sha256.crt b/tests/data_files/cert_sha256.crt
deleted file mode 100644
index 03a7521..0000000
--- a/tests/data_files/cert_sha256.crt
+++ /dev/null
@@ -1,77 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 9 (0x9)
-        Signature Algorithm: sha256WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:07 2011 GMT
-            Not After : Feb 12 14:44:07 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Cert SHA256
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:b9:3c:4a:c5:c8:a3:8e:90:17:a4:9e:52:aa:71:
-                    75:26:61:80:e7:c7:b5:6d:8c:ff:aa:b6:41:26:b7:
-                    be:11:ad:5c:73:16:0c:64:11:48:04:ff:d6:e1:3b:
-                    05:db:89:bb:b3:97:09:d5:1c:14:dd:68:87:39:b0:
-                    3d:71:cb:e2:76:d0:1a:d8:18:2d:80:1b:54:f6:e5:
-                    44:9a:f1:cb:af:61:2e:df:49:0d:9d:09:b7:ed:b1:
-                    fd:3c:fd:3c:fa:24:cf:5d:bf:7c:e4:53:e7:25:b5:
-                    ea:44:22:e9:26:d3:ea:20:94:9e:e6:61:67:ba:2e:
-                    07:67:0b:03:2f:a2:09:ed:f0:33:8f:0b:ce:10:ef:
-                    67:a4:c6:08:da:c1:ed:c2:3f:d7:4a:dd:15:3d:f9:
-                    5e:1c:81:60:46:3e:b5:b3:3d:2f:a6:de:47:1c:bc:
-                    92:ae:eb:df:27:6b:16:56:b7:dc:ec:d1:55:57:a5:
-                    6e:ec:75:25:f5:b7:7b:df:ab:d2:3a:5a:91:98:7d:
-                    97:17:0b:13:0a:a7:6b:4a:8b:c1:47:30:fb:3a:f8:
-                    41:04:d5:c1:df:b8:1d:bf:7b:01:a5:65:a2:e0:1e:
-                    36:b7:a6:5c:cc:30:5a:f8:cd:6f:cd:f1:19:62:25:
-                    ca:01:e3:35:7f:fa:20:f5:dc:fd:69:b2:6a:00:7d:
-                    17:f7
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                7D:E4:9C:6B:E6:F9:71:7D:46:D2:12:3D:AD:6B:1D:FD:C2:AA:78:4C
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-
-    Signature Algorithm: sha256WithRSAEncryption
-        69:ce:f9:a9:d5:e2:32:db:fe:a9:f9:92:7a:d6:76:37:05:51:
-        c9:e3:a1:03:72:b2:bc:2c:86:4b:31:16:02:10:e8:43:d4:c0:
-        33:3c:4f:ea:9d:12:6b:57:51:bc:d7:d9:42:56:cf:c7:29:e7:
-        d7:52:24:49:29:ac:9c:de:8f:cc:ab:1a:a9:62:07:5a:6b:f7:
-        fb:19:ab:f5:b1:2c:a4:aa:dc:5d:03:73:17:7c:ea:52:44:80:
-        ca:70:d3:10:c5:2e:fd:9f:d2:0d:65:c4:f2:cc:ef:1b:18:e1:
-        0a:08:4e:67:d0:56:7f:24:54:2e:73:31:b5:4d:22:74:f8:30:
-        f9:92:c4:64:c9:46:80:d4:e1:bd:d6:e7:26:ea:bb:c4:fe:6f:
-        a2:c5:10:e4:64:2f:b0:44:04:2c:b3:44:39:cf:b4:de:ac:83:
-        43:5e:0b:ca:cd:fb:4e:18:e6:38:39:e7:10:3f:d6:59:17:e7:
-        42:ef:00:e3:88:c6:43:bc:21:12:bf:20:a8:64:c6:30:dc:8c:
-        6b:b8:6a:ce:6b:8a:22:3b:d8:af:0c:b4:bb:4d:be:96:dd:40:
-        d9:87:3e:95:2e:1a:27:23:62:e8:6e:bd:e0:89:d0:a7:28:16:
-        95:ea:cb:89:a3:f7:7f:fb:0f:ac:ab:d6:a8:b4:cb:43:92:d9:
-        cb:3e:8a:11
------BEGIN CERTIFICATE-----
-MIIDQjCCAiqgAwIBAgIBCTANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA3WhcNMjEwMjEyMTQ0NDA3WjA/MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHTAbBgNVBAMTFFBvbGFyU1NMIENlcnQgU0hBMjU2MIIB
-IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuTxKxcijjpAXpJ5SqnF1JmGA
-58e1bYz/qrZBJre+Ea1ccxYMZBFIBP/W4TsF24m7s5cJ1RwU3WiHObA9ccvidtAa
-2BgtgBtU9uVEmvHLr2Eu30kNnQm37bH9PP08+iTPXb985FPnJbXqRCLpJtPqIJSe
-5mFnui4HZwsDL6IJ7fAzjwvOEO9npMYI2sHtwj/XSt0VPfleHIFgRj61sz0vpt5H
-HLySruvfJ2sWVrfc7NFVV6Vu7HUl9bd736vSOlqRmH2XFwsTCqdrSovBRzD7OvhB
-BNXB37gdv3sBpWWi4B42t6ZczDBa+M1vzfEZYiXKAeM1f/og9dz9abJqAH0X9wID
-AQABo00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBR95Jxr5vlxfUbSEj2tax39wqp4
-TDAfBgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQsF
-AAOCAQEAac75qdXiMtv+qfmSetZ2NwVRyeOhA3KyvCyGSzEWAhDoQ9TAMzxP6p0S
-a1dRvNfZQlbPxynn11IkSSmsnN6PzKsaqWIHWmv3+xmr9bEspKrcXQNzF3zqUkSA
-ynDTEMUu/Z/SDWXE8szvGxjhCghOZ9BWfyRULnMxtU0idPgw+ZLEZMlGgNThvdbn
-Juq7xP5vosUQ5GQvsEQELLNEOc+03qyDQ14Lys37ThjmODnnED/WWRfnQu8A44jG
-Q7whEr8gqGTGMNyMa7hqzmuKIjvYrwy0u02+lt1A2Yc+lS4aJyNi6G694InQpygW
-lerLiaP3f/sPrKvWqLTLQ5LZyz6KEQ==
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_sha384.crt b/tests/data_files/cert_sha384.crt
deleted file mode 100644
index 73caac9..0000000
--- a/tests/data_files/cert_sha384.crt
+++ /dev/null
@@ -1,77 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 10 (0xa)
-        Signature Algorithm: sha384WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:07 2011 GMT
-            Not After : Feb 12 14:44:07 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Cert SHA384
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:b9:3c:4a:c5:c8:a3:8e:90:17:a4:9e:52:aa:71:
-                    75:26:61:80:e7:c7:b5:6d:8c:ff:aa:b6:41:26:b7:
-                    be:11:ad:5c:73:16:0c:64:11:48:04:ff:d6:e1:3b:
-                    05:db:89:bb:b3:97:09:d5:1c:14:dd:68:87:39:b0:
-                    3d:71:cb:e2:76:d0:1a:d8:18:2d:80:1b:54:f6:e5:
-                    44:9a:f1:cb:af:61:2e:df:49:0d:9d:09:b7:ed:b1:
-                    fd:3c:fd:3c:fa:24:cf:5d:bf:7c:e4:53:e7:25:b5:
-                    ea:44:22:e9:26:d3:ea:20:94:9e:e6:61:67:ba:2e:
-                    07:67:0b:03:2f:a2:09:ed:f0:33:8f:0b:ce:10:ef:
-                    67:a4:c6:08:da:c1:ed:c2:3f:d7:4a:dd:15:3d:f9:
-                    5e:1c:81:60:46:3e:b5:b3:3d:2f:a6:de:47:1c:bc:
-                    92:ae:eb:df:27:6b:16:56:b7:dc:ec:d1:55:57:a5:
-                    6e:ec:75:25:f5:b7:7b:df:ab:d2:3a:5a:91:98:7d:
-                    97:17:0b:13:0a:a7:6b:4a:8b:c1:47:30:fb:3a:f8:
-                    41:04:d5:c1:df:b8:1d:bf:7b:01:a5:65:a2:e0:1e:
-                    36:b7:a6:5c:cc:30:5a:f8:cd:6f:cd:f1:19:62:25:
-                    ca:01:e3:35:7f:fa:20:f5:dc:fd:69:b2:6a:00:7d:
-                    17:f7
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                7D:E4:9C:6B:E6:F9:71:7D:46:D2:12:3D:AD:6B:1D:FD:C2:AA:78:4C
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-
-    Signature Algorithm: sha384WithRSAEncryption
-        68:e6:03:f0:ba:44:e7:cc:e1:b2:07:6c:56:c8:be:b7:ba:80:
-        61:c8:f9:66:57:e1:cb:60:7d:cd:8d:0f:66:b0:f2:61:45:fd:
-        fc:c8:93:95:bb:b4:14:00:76:c7:e1:57:a6:e2:60:31:8b:fc:
-        e1:0f:68:24:4c:bb:1d:c5:b6:77:ec:23:e1:5b:4f:10:6c:6a:
-        e0:6d:e7:34:f8:72:14:ae:16:57:25:8b:e8:b9:71:a1:d0:78:
-        ea:18:c1:51:c4:2e:26:6d:cb:80:8d:a5:b9:de:e7:37:c1:2b:
-        ec:e8:98:c6:f9:1a:bf:fe:a3:de:3d:d6:59:98:45:dc:4a:a6:
-        ad:0a:af:73:50:43:23:5a:9b:9a:f9:8f:ff:41:15:e5:9c:12:
-        9e:29:55:5c:79:9c:89:0c:c8:8a:82:86:b1:96:ae:7c:7d:4f:
-        0b:fd:e3:9e:8b:a5:4d:88:55:05:ad:6c:63:aa:74:0c:41:0d:
-        47:22:cc:1a:45:02:92:5e:d1:e0:b9:31:52:ff:f6:30:f0:87:
-        2c:dd:fa:fa:b9:cc:45:cb:36:33:5b:35:7f:5f:05:4f:e0:8f:
-        9a:e4:d2:fa:c9:d4:fc:62:99:ac:59:fb:fd:04:bc:5a:c0:47:
-        5e:5d:3d:df:31:8c:7f:dc:00:cb:cb:c0:f4:62:41:44:db:1d:
-        ba:c0:ad:8a
------BEGIN CERTIFICATE-----
-MIIDQjCCAiqgAwIBAgIBCjANBgkqhkiG9w0BAQwFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA3WhcNMjEwMjEyMTQ0NDA3WjA/MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHTAbBgNVBAMTFFBvbGFyU1NMIENlcnQgU0hBMzg0MIIB
-IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuTxKxcijjpAXpJ5SqnF1JmGA
-58e1bYz/qrZBJre+Ea1ccxYMZBFIBP/W4TsF24m7s5cJ1RwU3WiHObA9ccvidtAa
-2BgtgBtU9uVEmvHLr2Eu30kNnQm37bH9PP08+iTPXb985FPnJbXqRCLpJtPqIJSe
-5mFnui4HZwsDL6IJ7fAzjwvOEO9npMYI2sHtwj/XSt0VPfleHIFgRj61sz0vpt5H
-HLySruvfJ2sWVrfc7NFVV6Vu7HUl9bd736vSOlqRmH2XFwsTCqdrSovBRzD7OvhB
-BNXB37gdv3sBpWWi4B42t6ZczDBa+M1vzfEZYiXKAeM1f/og9dz9abJqAH0X9wID
-AQABo00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBR95Jxr5vlxfUbSEj2tax39wqp4
-TDAfBgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQwF
-AAOCAQEAaOYD8LpE58zhsgdsVsi+t7qAYcj5Zlfhy2B9zY0PZrDyYUX9/MiTlbu0
-FAB2x+FXpuJgMYv84Q9oJEy7HcW2d+wj4VtPEGxq4G3nNPhyFK4WVyWL6LlxodB4
-6hjBUcQuJm3LgI2lud7nN8Er7OiYxvkav/6j3j3WWZhF3EqmrQqvc1BDI1qbmvmP
-/0EV5ZwSnilVXHmciQzIioKGsZaufH1PC/3jnoulTYhVBa1sY6p0DEENRyLMGkUC
-kl7R4LkxUv/2MPCHLN36+rnMRcs2M1s1f18FT+CPmuTS+snU/GKZrFn7/QS8WsBH
-Xl093zGMf9wAy8vA9GJBRNsdusCtig==
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_sha512.crt b/tests/data_files/cert_sha512.crt
deleted file mode 100644
index 4bb4eed..0000000
--- a/tests/data_files/cert_sha512.crt
+++ /dev/null
@@ -1,77 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 11 (0xb)
-        Signature Algorithm: sha512WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:07 2011 GMT
-            Not After : Feb 12 14:44:07 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Cert SHA512
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:b9:3c:4a:c5:c8:a3:8e:90:17:a4:9e:52:aa:71:
-                    75:26:61:80:e7:c7:b5:6d:8c:ff:aa:b6:41:26:b7:
-                    be:11:ad:5c:73:16:0c:64:11:48:04:ff:d6:e1:3b:
-                    05:db:89:bb:b3:97:09:d5:1c:14:dd:68:87:39:b0:
-                    3d:71:cb:e2:76:d0:1a:d8:18:2d:80:1b:54:f6:e5:
-                    44:9a:f1:cb:af:61:2e:df:49:0d:9d:09:b7:ed:b1:
-                    fd:3c:fd:3c:fa:24:cf:5d:bf:7c:e4:53:e7:25:b5:
-                    ea:44:22:e9:26:d3:ea:20:94:9e:e6:61:67:ba:2e:
-                    07:67:0b:03:2f:a2:09:ed:f0:33:8f:0b:ce:10:ef:
-                    67:a4:c6:08:da:c1:ed:c2:3f:d7:4a:dd:15:3d:f9:
-                    5e:1c:81:60:46:3e:b5:b3:3d:2f:a6:de:47:1c:bc:
-                    92:ae:eb:df:27:6b:16:56:b7:dc:ec:d1:55:57:a5:
-                    6e:ec:75:25:f5:b7:7b:df:ab:d2:3a:5a:91:98:7d:
-                    97:17:0b:13:0a:a7:6b:4a:8b:c1:47:30:fb:3a:f8:
-                    41:04:d5:c1:df:b8:1d:bf:7b:01:a5:65:a2:e0:1e:
-                    36:b7:a6:5c:cc:30:5a:f8:cd:6f:cd:f1:19:62:25:
-                    ca:01:e3:35:7f:fa:20:f5:dc:fd:69:b2:6a:00:7d:
-                    17:f7
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                7D:E4:9C:6B:E6:F9:71:7D:46:D2:12:3D:AD:6B:1D:FD:C2:AA:78:4C
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-
-    Signature Algorithm: sha512WithRSAEncryption
-        84:68:78:72:54:00:bf:8a:45:28:35:be:18:47:d8:69:f6:67:
-        de:a6:f8:a6:d0:fd:9f:79:f7:e8:02:8a:c3:83:5d:85:45:cc:
-        b6:98:77:a7:18:3f:6b:d2:e4:d0:af:d5:52:d9:db:7e:4a:d3:
-        68:b0:08:64:14:de:c2:3b:1d:7b:ac:79:ad:49:5a:4c:f6:d2:
-        35:ef:a4:8c:b7:5b:d1:0b:7b:50:c6:9c:48:3e:96:3b:1b:0b:
-        0e:e8:10:3f:8c:3b:4f:6b:1d:5c:3a:27:f3:43:22:ac:37:11:
-        71:b8:07:66:b0:f8:71:c3:22:cf:f4:96:83:93:fb:42:b0:1a:
-        43:f9:4b:df:cb:5f:0f:ba:9e:80:f1:ff:08:3a:46:51:dc:d0:
-        36:bd:b1:c4:ca:fb:00:12:e7:e0:37:70:40:0e:73:19:63:c2:
-        e5:da:56:77:07:68:a5:40:9e:d6:0f:ad:b5:b3:b2:f5:3f:01:
-        e8:68:e7:a3:b0:d7:f3:dd:ff:b6:d7:8f:75:4e:25:ab:12:32:
-        99:45:ad:57:40:de:d7:b4:0d:d0:c3:66:89:47:f2:0c:b2:b5:
-        df:52:0e:fa:63:62:65:89:07:4a:80:69:0e:4e:ba:c0:43:5d:
-        05:75:22:cf:50:f9:ac:bd:ef:8d:8c:10:08:b6:8b:62:4f:a1:
-        60:55:a3:0d
------BEGIN CERTIFICATE-----
-MIIDQjCCAiqgAwIBAgIBCzANBgkqhkiG9w0BAQ0FADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA3WhcNMjEwMjEyMTQ0NDA3WjA/MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHTAbBgNVBAMTFFBvbGFyU1NMIENlcnQgU0hBNTEyMIIB
-IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuTxKxcijjpAXpJ5SqnF1JmGA
-58e1bYz/qrZBJre+Ea1ccxYMZBFIBP/W4TsF24m7s5cJ1RwU3WiHObA9ccvidtAa
-2BgtgBtU9uVEmvHLr2Eu30kNnQm37bH9PP08+iTPXb985FPnJbXqRCLpJtPqIJSe
-5mFnui4HZwsDL6IJ7fAzjwvOEO9npMYI2sHtwj/XSt0VPfleHIFgRj61sz0vpt5H
-HLySruvfJ2sWVrfc7NFVV6Vu7HUl9bd736vSOlqRmH2XFwsTCqdrSovBRzD7OvhB
-BNXB37gdv3sBpWWi4B42t6ZczDBa+M1vzfEZYiXKAeM1f/og9dz9abJqAH0X9wID
-AQABo00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBR95Jxr5vlxfUbSEj2tax39wqp4
-TDAfBgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQ0F
-AAOCAQEAhGh4clQAv4pFKDW+GEfYafZn3qb4ptD9n3n36AKKw4NdhUXMtph3pxg/
-a9Lk0K/VUtnbfkrTaLAIZBTewjsde6x5rUlaTPbSNe+kjLdb0Qt7UMacSD6WOxsL
-DugQP4w7T2sdXDon80MirDcRcbgHZrD4ccMiz/SWg5P7QrAaQ/lL38tfD7qegPH/
-CDpGUdzQNr2xxMr7ABLn4DdwQA5zGWPC5dpWdwdopUCe1g+ttbOy9T8B6Gjno7DX
-893/ttePdU4lqxIymUWtV0De17QN0MNmiUfyDLK131IO+mNiZYkHSoBpDk66wENd
-BXUiz1D5rL3vjYwQCLaLYk+hYFWjDQ==
------END CERTIFICATE-----
diff --git a/tests/data_files/cert_v1_with_ext.crt b/tests/data_files/cert_v1_with_ext.crt
deleted file mode 100644
index 4f07048..0000000
--- a/tests/data_files/cert_v1_with_ext.crt
+++ /dev/null
@@ -1,23 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDzTCCArUCCQC97UTH0j7CpDANBgkqhkiG9w0BAQUFADCBhzELMAkGA1UEBhMC
-WFgxCzAJBgNVBAgTAlhYMQswCQYDVQQHEwJYWDELMAkGA1UEChMCWFgxCzAJBgNV
-BAsTAlhYMScwJQYJKoZIhvcNAQkBFhhhZG1pbkBpZGVudGl0eS1jaGVjay5vcmcx
-GzAZBgNVBAMTEmlkZW50aXR5LWNoZWNrLm9yZzAeFw0xMzA3MDQxNjE3MDJaFw0x
-NDA3MDQxNjE3MDJaMIGHMQswCQYDVQQGEwJYWDELMAkGA1UECBMCWFgxCzAJBgNV
-BAcTAlhYMQswCQYDVQQKEwJYWDELMAkGA1UECxMCWFgxJzAlBgkqhkiG9w0BCQEW
-GGFkbWluQGlkZW50aXR5LWNoZWNrLm9yZzEbMBkGA1UEAxMSaWRlbnRpdHktY2hl
-Y2sub3JnMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1v8FswMughO8
-mwkHWAf+XRpK33kYR0ifBnObvk2R9ZTEUk/TfFEEFVlen5xhiE0g8lbCj8Y5Mzsg
-wZsJv5in/KnraYb7VC0ah0jx4sMkhKRcyUWfjyH8r7FNH1j1jd08ZpWJGotYxxaL
-evqom1rzLN99JPObwyCCgGcQjlRV7cMfIgwlwHb/JPXOy/hYAgjrCjqvBu3nL5/b
-HF0PyVGiKCEQiHhMBKNjAxzQrCUGy7Vp+3QlIYrs6/m5A96vohX/j+wzwIp3QgiK
-Yhj5E4Zo/iQLf6Rwl7pL4RTdT+crcy143mYiShNY+ayl9snfVJNnuHaMe15fVEsP
-X9lDvdBvXwIDAQABoz8wPTA7BgNVHREENDAyghJpZGVudGl0eS1jaGVjay5vcmeC
-Fnd3dy5pZGVudGl0eS1jaGVjay5vcmeHBCU7/jAwDQYJKoZIhvcNAQEFBQADggEB
-AAXUXoWlQxKvSCVWhes8x03MCude0nDqDFH1DPGIKeVeWOw87nVni+hIvy8II6hj
-5ZfGSHuZci2AgElA3tXk2qDcZ/uBXe2VV4IwsgXKUYSlpz1xoU55InT4e7KdssEP
-HOyrU03Dzm8Jk0PhgEJpV48tkWYoJvZvOiwG0e43UPDv9xp8C8EbvJmmuWkUWnNW
-o0yDnoAOxGfUGSUQ1guTpWCoQEKj3DS4v4lI0kNmJm+oRE2vv1XealWEHSuMpRZO
-Qhy8WImX3muw99MP579tY44D5Z7p3kpiC1bwV3tzkHdf5mkrAbFJIfliPvjMrPMw
-2eyXXijDsebpT0w3ruMxjHg=
------END CERTIFICATE-----
diff --git a/tests/data_files/cli-rsa-sha1.crt b/tests/data_files/cli-rsa-sha1.crt
deleted file mode 100644
index ffbe21a..0000000
--- a/tests/data_files/cli-rsa-sha1.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDPzCCAiegAwIBAgIBBDANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA8MQswCQYDVQQGEwJOTDERMA8G
-A1UECgwIUG9sYXJTU0wxGjAYBgNVBAMMEVBvbGFyU1NMIENsaWVudCAyMIIBIjAN
-BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyHTEzLn5tXnpRdkUYLB9u5Pyax6f
-M60Nj4o8VmXl3ETZzGaFB9X4J7BKNdBjngpuG7fa8H6r7gwQk4ZJGDTzqCrSV/Uu
-1C93KYRhTYJQj6eVSHD1bk2y1RPD0hrt5kPqQhTrdOrA7R/UV06p86jt0uDBMHEw
-MjDV0/YI0FZPRo7yX/k9Z5GIMC5Cst99++UMd//sMcB4j7/Cf8qtbCHWjdmLao5v
-4Jv4EFbMs44TFeY0BGbH7vk2DmqV9gmaBmf0ZXH4yqSxJeD+PIs1BGe64E92hfx/
-/DZrtenNLQNiTrM9AM+vdqBpVoNq0qjU51Bx5rU2BXcFbXvI5MT9TNUhXwIDAQAB
-o00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBRxoQBzckAvVHZeM/xSj7zx3WtGITAf
-BgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQUFAAOC
-AQEAX0vLL6qw6zYaO7a1ZXXJhWL8/vm1+yz5HrnXPX62xBD7P+cVGrOoNbD1QAj9
-otOpUsWYmHRvhotO42oqPsnoPA0JpGRR2elbTrcK9uDxg6PWwoix3uHPRuXdRIsU
-jee2TcGilXgJw1HDvJ04E5qowAtAgOcE41ZraAN43GHO2PjxcXEEoWzqSqvlUrv3
-AOaCTn9X73izMRgPbQBnJjknIzoYwWgVFaDEW/lZE0+LLa99/mxFFUBhYzAY+h/R
-rmtslJIyIzTd3sLo+XZ0hNtlBM0u1okOspSWtmoNdSiJDZMJ4LL71xuJYG46Sl/0
-1hH/1pZigeufZgYrQgqG8oHT4A==
------END CERTIFICATE-----
diff --git a/tests/data_files/cli-rsa-sha256.crt b/tests/data_files/cli-rsa-sha256.crt
deleted file mode 100644
index c81f98f..0000000
--- a/tests/data_files/cli-rsa-sha256.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDPzCCAiegAwIBAgIBBDANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA8MQswCQYDVQQGEwJOTDERMA8G
-A1UECgwIUG9sYXJTU0wxGjAYBgNVBAMMEVBvbGFyU1NMIENsaWVudCAyMIIBIjAN
-BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyHTEzLn5tXnpRdkUYLB9u5Pyax6f
-M60Nj4o8VmXl3ETZzGaFB9X4J7BKNdBjngpuG7fa8H6r7gwQk4ZJGDTzqCrSV/Uu
-1C93KYRhTYJQj6eVSHD1bk2y1RPD0hrt5kPqQhTrdOrA7R/UV06p86jt0uDBMHEw
-MjDV0/YI0FZPRo7yX/k9Z5GIMC5Cst99++UMd//sMcB4j7/Cf8qtbCHWjdmLao5v
-4Jv4EFbMs44TFeY0BGbH7vk2DmqV9gmaBmf0ZXH4yqSxJeD+PIs1BGe64E92hfx/
-/DZrtenNLQNiTrM9AM+vdqBpVoNq0qjU51Bx5rU2BXcFbXvI5MT9TNUhXwIDAQAB
-o00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBRxoQBzckAvVHZeM/xSj7zx3WtGITAf
-BgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQsFAAOC
-AQEAlHabem2Tu69VUN7EipwnQn1dIHdgvT5i+iQHpSxY1crPnBbAeSdAXwsVEqLQ
-gOOIAQD5VIITNuoGgo4i+4OpNh9u7ZkpRHla+/swsfrFWRRbBNP5Bcu74AGLstwU
-zM8gIkBiyfM1Q1qDQISV9trlCG6O8vh8dp/rbI3rfzo99BOHXgFCrzXjCuW4vDsF
-r+Dao26bX3sJ6UnEWg1H3o2x6PpUcvQ36h71/bz4TEbbUUEpe02V4QWuL+wrhHJL
-U7o3SVE3Og7jPF8sat0a50YUWhwEFI256m02KAXLg89ueUyYKEr6rNwhcvXJpvU9
-giIVvd0Sbjjnn7NC4VDbcXV8vw==
------END CERTIFICATE-----
diff --git a/tests/data_files/cli.opensslconf b/tests/data_files/cli.opensslconf
deleted file mode 100644
index ae9ab9d..0000000
--- a/tests/data_files/cli.opensslconf
+++ /dev/null
@@ -1,4 +0,0 @@
-[cli-rsa]
-subjectKeyIdentifier=hash
-authorityKeyIdentifier=keyid:always,issuer:always
-basicConstraints = CA:false
diff --git a/tests/data_files/cli2.crt b/tests/data_files/cli2.crt
deleted file mode 100644
index 2dfa516..0000000
--- a/tests/data_files/cli2.crt
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICLDCCAbKgAwIBAgIBDTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
-MTMwOTI0MTU1MjA0WhcNMjMwOTIyMTU1MjA0WjBBMQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHzAdBgNVBAMTFlBvbGFyU1NMIFRlc3QgQ2xpZW50IDIw
-WTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAARX5a6xc9/TrLuTuIH/Eq7u5lOszlVT
-9jQOzC7jYyUL35ji81xgNpbA1RgUcOV/n9VLRRjlsGzVXPiWj4dwo+THo4GdMIGa
-MAkGA1UdEwQCMAAwHQYDVR0OBBYEFHoAX4Zk/OBd5REQO7LmO8QmP8/iMG4GA1Ud
-IwRnMGWAFJ1tICRJAT8ry3i1Gbx+JMnb+zZ8oUKkQDA+MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0GC
-CQDBQ+J+YkPM6DAKBggqhkjOPQQDAgNoADBlAjBKZQ17IIOimbmoD/yN7o89u3BM
-lgOsjnhw3fIOoLIWy2WOGsk/LGF++DzvrRzuNiACMQCd8iem1XS4JK7haj8xocpU
-LwjQje5PDGHfd3h9tP38Qknu5bJqws0md2KOKHyeV0U=
------END CERTIFICATE-----
diff --git a/tests/data_files/cli2.key b/tests/data_files/cli2.key
deleted file mode 100644
index e747d09..0000000
--- a/tests/data_files/cli2.key
+++ /dev/null
@@ -1,5 +0,0 @@
------BEGIN EC PRIVATE KEY-----
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------END EC PRIVATE KEY-----
diff --git a/tests/data_files/crl-ec-sha1.pem b/tests/data_files/crl-ec-sha1.pem
deleted file mode 100644
index 8358640..0000000
--- a/tests/data_files/crl-ec-sha1.pem
+++ /dev/null
@@ -1,10 +0,0 @@
------BEGIN X509 CRL-----
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diff --git a/tests/data_files/crl-ec-sha224.pem b/tests/data_files/crl-ec-sha224.pem
deleted file mode 100644
index 9131f10..0000000
--- a/tests/data_files/crl-ec-sha224.pem
+++ /dev/null
@@ -1,10 +0,0 @@
------BEGIN X509 CRL-----
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diff --git a/tests/data_files/crl-ec-sha256.pem b/tests/data_files/crl-ec-sha256.pem
deleted file mode 100644
index adfd5f8..0000000
--- a/tests/data_files/crl-ec-sha256.pem
+++ /dev/null
@@ -1,10 +0,0 @@
------BEGIN X509 CRL-----
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deleted file mode 100644
index b757abb..0000000
--- a/tests/data_files/crl-ec-sha384.pem
+++ /dev/null
@@ -1,10 +0,0 @@
------BEGIN X509 CRL-----
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deleted file mode 100644
index f7c9402..0000000
--- a/tests/data_files/crl-ec-sha512.pem
+++ /dev/null
@@ -1,10 +0,0 @@
------BEGIN X509 CRL-----
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diff --git a/tests/data_files/crl-future.pem b/tests/data_files/crl-future.pem
deleted file mode 100644
index 1938219..0000000
--- a/tests/data_files/crl-future.pem
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN X509 CRL-----
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diff --git a/tests/data_files/crl-idp.pem b/tests/data_files/crl-idp.pem
deleted file mode 100644
index a229e7d..0000000
--- a/tests/data_files/crl-idp.pem
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN X509 CRL-----
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deleted file mode 100644
index 0ebe480..0000000
--- a/tests/data_files/crl-idpnc.pem
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN X509 CRL-----
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------END X509 CRL-----
diff --git a/tests/data_files/crl-malformed-trailing-spaces.pem b/tests/data_files/crl-malformed-trailing-spaces.pem
deleted file mode 100644
index 9eae3da..0000000
--- a/tests/data_files/crl-malformed-trailing-spaces.pem
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN X509 CRL-----
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------BEGIN X509 CRL-----
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diff --git a/tests/data_files/crl-rsa-pss-sha1-badsign.pem b/tests/data_files/crl-rsa-pss-sha1-badsign.pem
deleted file mode 100644
index 7e2a596..0000000
--- a/tests/data_files/crl-rsa-pss-sha1-badsign.pem
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN X509 CRL-----
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diff --git a/tests/data_files/crl-rsa-pss-sha1.pem b/tests/data_files/crl-rsa-pss-sha1.pem
deleted file mode 100644
index 59ca4f7..0000000
--- a/tests/data_files/crl-rsa-pss-sha1.pem
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN X509 CRL-----
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diff --git a/tests/data_files/crl-rsa-pss-sha224.pem b/tests/data_files/crl-rsa-pss-sha224.pem
deleted file mode 100644
index a51d5d9..0000000
--- a/tests/data_files/crl-rsa-pss-sha224.pem
+++ /dev/null
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diff --git a/tests/data_files/crl-rsa-pss-sha256.pem b/tests/data_files/crl-rsa-pss-sha256.pem
deleted file mode 100644
index f16a491..0000000
--- a/tests/data_files/crl-rsa-pss-sha256.pem
+++ /dev/null
@@ -1,16 +0,0 @@
------BEGIN X509 CRL-----
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deleted file mode 100644
index 50f7e4c..0000000
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deleted file mode 100644
index 0f1d651..0000000
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deleted file mode 100644
index 2bd1096..0000000
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index 3cda8ff..0000000
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deleted file mode 100644
index 87b8c29..0000000
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deleted file mode 100644
index ded369d..0000000
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-husEdgQm8D5TbrGcjPIPWxgYyuuRsl7XovZhXnqTIUrC+J8oH9XzKaMc+HZb5UhR
-h8bzcyp+9jbBje7lWwKTzkuvd/I7VbS02TUkWFJTrYB0Laj8WMcgcZiyX0iZuj8j
-4hOupu0lPoSzZ4h7t0Vmay6wO+8n8LJohyiwYS7LddpOjIdP0MWifN7u/ArqNNlh
-2kg8eAc1pYOU/pJFTAAbOmC/kQpa9skd+PPIPPh9T53o3yeDQA0vFqN92JryCCU=
------END X509 CRL-----
diff --git a/tests/data_files/crl_sha1.pem b/tests/data_files/crl_sha1.pem
deleted file mode 100644
index 049bebf..0000000
--- a/tests/data_files/crl_sha1.pem
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN X509 CRL-----
-MIIBqzCBlDANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
-UG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EXDTExMDIxMjE0NDQw
-N1oXDTExMDQxMzE0NDQwN1owKDASAgEBFw0xMTAyMTIxNDQ0MDdaMBICAQMXDTEx
-MDIxMjE0NDQwN1owDQYJKoZIhvcNAQEFBQADggEBAG64jqn7VLdvnKROsbCPR8w9
-xnox9vjuM2lGWema9sTuptw9EhArVSbibXZ1IPPyrEy1QOq3NukBqUW3KzOzYV5M
-BxZSa28FTQxtVChWkDUIMCK8BSxy07yieFf/3A8mbfcW3ZzN4akLxOweuFp6l2H7
-9oa2jeUi1BlHCZS6JYI2pHZl8qiMRiqqMleSM2k1w7TraKLNBFM8UK72brXeZjPi
-nNOzdYsQDzWo1HW7dsLWLfZKoJeyqvofVDQpC5dO56kty/do89z1OnEXfzMNeVVT
-JCeAOzuu6kdrf+9keRoWhcIoBos/XtTV57u0pgr81bLgjj5PYivevKL/kKbyvKI=
------END X509 CRL-----
diff --git a/tests/data_files/crl_sha224.pem b/tests/data_files/crl_sha224.pem
deleted file mode 100644
index 066f5be..0000000
--- a/tests/data_files/crl_sha224.pem
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN X509 CRL-----
-MIIBqzCBlDANBgkqhkiG9w0BAQ4FADA7MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
-UG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EXDTExMDIxMjE0NDQw
-N1oXDTExMDQxMzE0NDQwN1owKDASAgEBFw0xMTAyMTIxNDQ0MDdaMBICAQMXDTEx
-MDIxMjE0NDQwN1owDQYJKoZIhvcNAQEOBQADggEBAL2sIly2OwgBu9UfEImduTG/
-RtGEO8RkXbCRJPLZaVGQh9b8rCRVHL9tIWm372FVkKyYEm3mIrl2ry16RznRt5yx
-Dd8/DKUGUlIe1KwzjDc9O7bv1FDSXHd1USmGTheKDHNtuJXYENMHdoyR2k2BVGOZ
-ie4zUcSpqyMjBlUjgNmXN6gQIcrRImumVUjMk74+rWTa0hQ0piF2qlRuE1dDqcZP
-LkE/92rbnFeRAO91XUeEj13dif2UjlArFWd62AFp0wtIn2sb7wahhUj9/rEs6Wgx
-kdiNsRMto6/ixLrPu3vxs80ZPWHey587T1ZZ9bS/wDkp9W+W0rGyRoPVmqiKtvM=
------END X509 CRL-----
diff --git a/tests/data_files/crl_sha256.pem b/tests/data_files/crl_sha256.pem
deleted file mode 100644
index c3ca256..0000000
--- a/tests/data_files/crl_sha256.pem
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN X509 CRL-----
-MIIBqzCBlDANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
-UG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EXDTExMDIxMjE0NDQw
-N1oXDTExMDQxMzE0NDQwN1owKDASAgEBFw0xMTAyMTIxNDQ0MDdaMBICAQMXDTEx
-MDIxMjE0NDQwN1owDQYJKoZIhvcNAQELBQADggEBAG4mBBgwfNynCYYL2CEnqore
-mgKpC32tB6WiUBu9figcvdN3nSX/1wrB8rpiE8R04C8oSFglwhotJCnlWsy42tjb
-0pk0Wuizln0PFMc/OypqRNNhwx31SHH42W4KzONiqvq3n/WkH3M1YniR1ZnMlyvi
-lJioQn6ZAoc6O6mMP1J9duKYYhiMAOV992PD1/iqXw+jYN31RwdIS8/mGzIs4ake
-EdviwhM3E4/sVbNOWCOnZFYV4m+yNAEe29HL1VKw6UXixBczct+brqXNVD3U6T0F
-5ovR6BTefZO17eT52Duke5RZGDUyQOGywxOYKI5W+FcOYdp+U5Idk399tAz2Mdw=
------END X509 CRL-----
diff --git a/tests/data_files/crl_sha384.pem b/tests/data_files/crl_sha384.pem
deleted file mode 100644
index b3baa2a..0000000
--- a/tests/data_files/crl_sha384.pem
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN X509 CRL-----
-MIIBqzCBlDANBgkqhkiG9w0BAQwFADA7MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
-UG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EXDTExMDIxMjE0NDQw
-N1oXDTExMDQxMzE0NDQwN1owKDASAgEBFw0xMTAyMTIxNDQ0MDdaMBICAQMXDTEx
-MDIxMjE0NDQwN1owDQYJKoZIhvcNAQEMBQADggEBAC0GpmRvsrvshp1q/SXk80HA
-m28ZvEuys9zY5/AnrtYHQfsX9QRJk5li7PlnzHtVGp8I5Qi4mJVPaJ+JmhqAc/oo
-NPmxDx8m9XF9v0XHzqQZIWlPXH8QM9WLzTazbQFXhuwnZ6LPhpo+m8cbN91mUFil
-9g+SGkma+VYV+yPRNmKyldcRVvPZUIkhTCMWkZoYrbDXUmkVQpsgz2c5ksIeMI/7
-4Qj9J38I9AOt0DlQ3etFhNc0OMnR7zY8tn9B4dejoNklEZfiyDxsDZVPusZrxnWM
-WxuehOGHZf3YESjLMtR7BW26QRHIF/nhGDHsbLiunxXI6eJlbYFoZMfwc6TMqnc=
------END X509 CRL-----
diff --git a/tests/data_files/crl_sha512.pem b/tests/data_files/crl_sha512.pem
deleted file mode 100644
index 4d712e5..0000000
--- a/tests/data_files/crl_sha512.pem
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN X509 CRL-----
-MIIBqzCBlDANBgkqhkiG9w0BAQ0FADA7MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
-UG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EXDTExMDIxMjE0NDQw
-N1oXDTExMDQxMzE0NDQwN1owKDASAgEBFw0xMTAyMTIxNDQ0MDdaMBICAQMXDTEx
-MDIxMjE0NDQwN1owDQYJKoZIhvcNAQENBQADggEBAH6GU24hd6d/5PmDusT+h2Kl
-e7scmhkZDPU+VJSnzHdEREYTPaoFqyVBuJOE95lZELEqdOauhO3lG2WEQVGcgEcv
-4jS2EzR3BYex1c1upqGtdIvIoA9TOLukdy6KeauomiWho2Kd7bSaXHy20jwdkLko
-/t3lVhTtBvKbh8XHVYwCaw1aCj3LydwNcS+zPnRgsMVHszFxmMNn5HCRW8lbYwcf
-UA98OmxIZs2hpBKRpvlfA5y6sXEx2+tSMg+MJrziGBgG6OR/m+KTaK5Yle9nrC+7
-hzKIe83hpktvfB1CY5Ak4Uke9/1FRqAjs5KCRxYSGQ7ZdS7DgAeGwT3slLbl/tY=
------END X509 CRL-----
diff --git a/tests/data_files/crt_cat_rsaexp-ec.pem b/tests/data_files/crt_cat_rsaexp-ec.pem
deleted file mode 100644
index 4f74c9a..0000000
--- a/tests/data_files/crt_cat_rsaexp-ec.pem
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN X509 CRL-----
-MIIBqzCBlDANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
-UG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EXDTExMDIyMDEwMjQx
-OVoXDTExMDIyMDExMjQxOVowKDASAgEBFw0xMTAyMTIxNDQ0MDdaMBICAQMXDTEx
-MDIxMjE0NDQwN1owDQYJKoZIhvcNAQEFBQADggEBAKgP1XmCIPbfY1/UO+SVFQir
-jArZ94QnQdoan4tJ29d8DmTxJ+z9/KyWNoGeOwc9P/2GQQaZahQOBr0f6lYd67Ct
-wFVh/Q2zF8FgRcrQV7u/vJM33Q2yEsQkMGlM7rE5lC972vUKWu/NKq8bN9W/tWxZ
-SFbvTXpv024aI0IRudpOCALnIy8SFhVb2/52IN2uR6qrFizDexMEdSckgpHuJzGS
-IiANhIMn5LdQYJFjPgBzQU12tDdgzcpxtGhT10y4uQre+UbSjw+iVyml3issw59k
-OSmkWFb06LamRC215JAMok3YQO5RnxCR8EjqPcJr+7+O9a1O1++yiaitg4bUjEA=
------END X509 CRL-----
------BEGIN X509 CRL-----
-MIIBcTCB9wIBATAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
-UG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EXDTEzMDkyNDE2
-MzEwOFoXDTIzMDkyMjE2MzEwOFowFDASAgEKFw0xMzA5MjQxNjI4MzhaoHIwcDBu
-BgNVHSMEZzBlgBSdbSAkSQE/K8t4tRm8fiTJ2/s2fKFCpEAwPjELMAkGA1UEBhMC
-TkwxETAPBgNVBAoTCFBvbGFyU1NMMRwwGgYDVQQDExNQb2xhcnNzbCBUZXN0IEVD
-IENBggkAwUPifmJDzOgwCgYIKoZIzj0EAwIDaQAwZgIxAKuQ684s7gyhtxKJr6Ln
-S2BQ02f1jjPHrZVdXaZvm3C5tGi2cKkoK1aMiyC3LsRCuAIxAIMhj0TmcuIZr5fX
-g5RByD7zUnZBpoEAdgxFy4JPJ2IViWOPekSGh8b/JY1VNS6Zbw==
------END X509 CRL-----
diff --git a/tests/data_files/dh.1000.pem b/tests/data_files/dh.1000.pem
deleted file mode 100644
index 172f19f..0000000
--- a/tests/data_files/dh.1000.pem
+++ /dev/null
@@ -1,34 +0,0 @@
-
-Recommended key length: 160 bits
-
-generator:
-	23:84:3c:0d:55:8c:b9:7d:a9:d5:9a:80:82:fb:50:
-	89:29:71:8e:8e:a1:29:2e:df:db:01:34:41:e7:66:
-	fa:60:dc:bc:34:83:45:70:e0:61:e9:a6:25:23:c2:
-	77:33:a9:8a:90:94:21:ff:84:d2:7b:36:39:9b:e5:
-	f0:88:2b:35:98:64:28:58:27:be:fa:bf:e3:60:cc:
-	c4:61:60:59:78:a7:e1:a3:b3:a7:3e:7e:5b:a8:d7:
-	b7:ba:25:0e:b1:9e:79:03:b5:83:ba:43:34:b6:c1:
-	ce:45:66:72:07:64:8a:af:14:d8:ae:18:19:ba:25:
-	a6:d9:36:f8:8c:
-
-prime:
-	9e:a4:a8:c4:29:fe:76:18:02:4f:76:c9:29:0e:f2:
-	ba:0d:92:08:9d:d9:b3:28:41:5d:88:4e:fe:3c:ae:
-	c1:d4:3e:7e:fb:d8:2c:bf:7b:63:70:99:9e:c4:ac:
-	d0:1e:7c:4e:22:07:d2:b5:f9:9a:9e:52:e2:97:9d:
-	c3:cb:0d:66:33:75:95:a7:96:6e:69:ec:16:bd:06:
-	4a:1a:dc:b2:d4:29:23:ab:2e:8f:7f:6a:84:1d:82:
-	23:6e:42:8c:1e:70:3d:21:bb:b9:b9:8f:f9:fd:9c:
-	53:08:e4:e8:5a:04:ca:5f:8f:73:55:ac:e1:41:20:
-	c7:43:fa:8f:99:
-
-
------BEGIN DH PARAMETERS-----
-MIIBAwJ+AJ6kqMQp/nYYAk92ySkO8roNkgid2bMoQV2ITv48rsHUPn772Cy/e2Nw
-mZ7ErNAefE4iB9K1+ZqeUuKXncPLDWYzdZWnlm5p7Ba9Bkoa3LLUKSOrLo9/aoQd
-giNuQowecD0hu7m5j/n9nFMI5OhaBMpfj3NVrOFBIMdD+o+ZAn0jhDwNVYy5fanV
-moCC+1CJKXGOjqEpLt/bATRB52b6YNy8NINFcOBh6aYlI8J3M6mKkJQh/4TSezY5
-m+XwiCs1mGQoWCe++r/jYMzEYWBZeKfho7OnPn5bqNe3uiUOsZ55A7WDukM0tsHO
-RWZyB2SKrxTYrhgZuiWm2Tb4jAICAKA=
------END DH PARAMETERS-----
diff --git a/tests/data_files/dir-maxpath/00.crt b/tests/data_files/dir-maxpath/00.crt
deleted file mode 100644
index c806648..0000000
--- a/tests/data_files/dir-maxpath/00.crt
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBpTCCAUugAwIBAgIJAPygloXKk6BwMAoGCCqGSM49BAMCMC8xCzAJBgNVBAYT
-AlVLMREwDwYDVQQKDAhtYmVkIFRMUzENMAsGA1UEAwwEQ0EwMDAeFw0xNzA2MjIx
-MTUwMzJaFw0yNzA2MjMxMTUwMzJaMC8xCzAJBgNVBAYTAlVLMREwDwYDVQQKDAht
-YmVkIFRMUzENMAsGA1UEAwwEQ0EwMDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IA
-BFW41/qAwAPpy+Txdc7PKmzZsq9CPiujKU4vpF1ekXnGx2HP420QobwBVVWhkzRm
-LwdboH2j65dcCKjQ7mv/dxKjUDBOMB0GA1UdDgQWBBQlFYvU5WboI4fcdPoiQs8/
-fPHZrTAfBgNVHSMEGDAWgBQlFYvU5WboI4fcdPoiQs8/fPHZrTAMBgNVHRMEBTAD
-AQH/MAoGCCqGSM49BAMCA0gAMEUCIQC7iRcVzwMyfVK5imirJ7MqJQ04euH4CLOt
-IZ+SNfaERAIgSU0MWFDosVEIpg8YMqIHeF7Mg4ZyH6+fGazJgVLttUY=
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/00.key b/tests/data_files/dir-maxpath/00.key
deleted file mode 100644
index b4d3315..0000000
--- a/tests/data_files/dir-maxpath/00.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIARPaEIfROHkE9Y0ZgHh7Mc3ZU6LR9lCOIw1ksYTHp5EoAoGCCqGSM49
-AwEHoUQDQgAEVbjX+oDAA+nL5PF1zs8qbNmyr0I+K6MpTi+kXV6RecbHYc/jbRCh
-vAFVVaGTNGYvB1ugfaPrl1wIqNDua/93Eg==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/01.crt b/tests/data_files/dir-maxpath/01.crt
deleted file mode 100644
index 0e9107a..0000000
--- a/tests/data_files/dir-maxpath/01.crt
+++ /dev/null
@@ -1,13 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB3jCCAYWgAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDAwHhcNMTcwNjIyMTE1MDMyWhcN
-MjcwNjIzMTE1MDMyWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMDEwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQznn9zHHwL
-GO8VR4W9V7vMlxCdoojzEOiX5Y6JtPtFOz866ueHY6zoN0/mJ6DnqnSXilJIUUeW
-6eGfqmka7nxko4GRMIGOMB0GA1UdDgQWBBSh3uHkX5nj86yFEFwjscSWM40P+jBf
-BgNVHSMEWDBWgBQlFYvU5WboI4fcdPoiQs8/fPHZraEzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTAwggkA/KCWhcqToHAw
-DAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAgNHADBEAiBasbuinP+pJTU4oDCVD8zQ
-1rJBDSOKIEyWu84/D6Hj6wIgVMPUoO01bPhzllAa/gW8Xk/daey09SBgN3AT9pWU
-TDA=
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/01.key b/tests/data_files/dir-maxpath/01.key
deleted file mode 100644
index 7dd0643..0000000
--- a/tests/data_files/dir-maxpath/01.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEINSnxPqUNMba8F2KWNxU88heSs7vgas5BOzjRwQsQe6IoAoGCCqGSM49
-AwEHoUQDQgAEM55/cxx8CxjvFUeFvVe7zJcQnaKI8xDol+WOibT7RTs/Ournh2Os
-6DdP5ieg56p0l4pSSFFHlunhn6ppGu58ZA==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/02.crt b/tests/data_files/dir-maxpath/02.crt
deleted file mode 100644
index 387b064..0000000
--- a/tests/data_files/dir-maxpath/02.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1zCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDEwHhcNMTcwNjIyMTE1MDMyWhcN
-MjcwNjIzMTE1MDMyWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMDIwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQWHpv1i6lf
-wvNPOP5ka6S0n55EvzoaYK6pbTXP6yMOW/4XZSPKx5Zoq4FMe0cKzGIIFL1rzj1V
-2czYB+qvLhyio4GJMIGGMB0GA1UdDgQWBBT5RCgQ0AlZTQbfFB2+6+w0XRvydTBX
-BgNVHSMEUDBOgBSh3uHkX5nj86yFEFwjscSWM40P+qEzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTAwggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDSAAwRQIhAI7unGW/gr9tOc3i+dF5N815srgh+FrX
-oj9Et74EcSpTAiBubv+vOH0DE0gmYI11HeAIgutWqqMIC72dZlwTF/Vi3g==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/02.key b/tests/data_files/dir-maxpath/02.key
deleted file mode 100644
index b5ac513..0000000
--- a/tests/data_files/dir-maxpath/02.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIPW9zE8cjiZ8w17jTAebb4xAmEg6heEEnEaG4lGCd38joAoGCCqGSM49
-AwEHoUQDQgAEFh6b9YupX8LzTzj+ZGuktJ+eRL86GmCuqW01z+sjDlv+F2UjyseW
-aKuBTHtHCsxiCBS9a849VdnM2Afqry4cog==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/03.crt b/tests/data_files/dir-maxpath/03.crt
deleted file mode 100644
index 7d90a5e..0000000
--- a/tests/data_files/dir-maxpath/03.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB2DCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDIwHhcNMTcwNjIyMTE1MDMyWhcN
-MjcwNjIzMTE1MDMyWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMDMwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQRDXDNIi1p
-ereudhqwa2LslXgsxnB63Hu5y5lg+1WPruIYPzD/Ho0APveVdzFLVji19+bE4+tF
-PYL1SpsN1WfWo4GJMIGGMB0GA1UdDgQWBBQApzZdtBdD3dLxouQpr/aDiVttdzBX
-BgNVHSMEUDBOgBT5RCgQ0AlZTQbfFB2+6+w0XRvydaEzpDEwLzELMAkGA1UEBhMC
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-8Of8wgvrTEGoAiEAsS8iKMpSfXH4D0egg4gLamE6akde965rDtySU+ve9lg=
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/03.key b/tests/data_files/dir-maxpath/03.key
deleted file mode 100644
index 2bfa483..0000000
--- a/tests/data_files/dir-maxpath/03.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIBx2xwapGbHTy79IbpJkc/w9LJXPKNG7gGRLPOGPQFI6oAoGCCqGSM49
-AwEHoUQDQgAEEQ1wzSItaXq3rnYasGti7JV4LMZwetx7ucuZYPtVj67iGD8w/x6N
-AD73lXcxS1Y4tffmxOPrRT2C9UqbDdVn1g==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/04.crt b/tests/data_files/dir-maxpath/04.crt
deleted file mode 100644
index 1ddcf69..0000000
--- a/tests/data_files/dir-maxpath/04.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1jCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/04.key b/tests/data_files/dir-maxpath/04.key
deleted file mode 100644
index e836bbf..0000000
--- a/tests/data_files/dir-maxpath/04.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIDQvTm0wfEAKoymv8ePBv7cRxrnM4g6LREnSll5ghQsXoAoGCCqGSM49
-AwEHoUQDQgAEFFw4HFFTU/YaL22RORy+q4zm+wuecBLlik4VfwnGeK1q18e1Vx2H
-Q/0d2gwOyUr2KZtrE6JOIrG5Q84WTPxgzQ==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/05.crt b/tests/data_files/dir-maxpath/05.crt
deleted file mode 100644
index 19de3a3..0000000
--- a/tests/data_files/dir-maxpath/05.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1zCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/05.key b/tests/data_files/dir-maxpath/05.key
deleted file mode 100644
index 7f3095e..0000000
--- a/tests/data_files/dir-maxpath/05.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIP3MTs0m9ssAAXQ94O6GYC3pckfpMUxQiPTG8hQYgA0WoAoGCCqGSM49
-AwEHoUQDQgAEBHU9DhX+RlHK4F9l5ZQsicz/eDWeOuBrIAeqbDS7A3i/o+wFPqCc
-u1S71v5R4dzg4JdPGfW4aixQZjY5x25vEA==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/06.crt b/tests/data_files/dir-maxpath/06.crt
deleted file mode 100644
index 36f99d2..0000000
--- a/tests/data_files/dir-maxpath/06.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1jCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDUwHhcNMTcwNjIyMTE1MDMyWhcN
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-g1H7pp0ce+wCIDj9BRZM2OB9EF0e+MDKGjyZGfvfrL6Ir47x/KrM6H8T
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/06.key b/tests/data_files/dir-maxpath/06.key
deleted file mode 100644
index 5b0bce2..0000000
--- a/tests/data_files/dir-maxpath/06.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIESUhQgXWd8cVQnitNEpOD2JNMqH9ug/wYaY1xW3SaSGoAoGCCqGSM49
-AwEHoUQDQgAEgPalqAFB655/t5Mcja4zyZPNlgy4plttUTedbsaaG2nb/GIBhA0X
-T/jpPrkakElLAOmV3xd4hq9ho30N8DAx/A==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/07.crt b/tests/data_files/dir-maxpath/07.crt
deleted file mode 100644
index 5bb57f8..0000000
--- a/tests/data_files/dir-maxpath/07.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB2DCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDYwHhcNMTcwNjIyMTE1MDMyWhcN
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-oKmia0gPyBNkAiEA83asjJ5FDXQuLyZpczviXrbmqgCPOfYadtvkc0cxMis=
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/07.key b/tests/data_files/dir-maxpath/07.key
deleted file mode 100644
index 3f20131..0000000
--- a/tests/data_files/dir-maxpath/07.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIEi1oKInPLbiINj8OxdActVTgI+YQVSefdQfCu1ihbLRoAoGCCqGSM49
-AwEHoUQDQgAEjTo+HeDBAO6f95ooo6huE6BOKKSjwJvtwUyBqyU2E9ePvk0olCAp
-dAEl4/sXlHCzCGl0zdONrC7B8aUoc0Gi9A==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/08.crt b/tests/data_files/dir-maxpath/08.crt
deleted file mode 100644
index bf1f33e..0000000
--- a/tests/data_files/dir-maxpath/08.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB2DCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDcwHhcNMTcwNjIyMTE1MDMyWhcN
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-/Tjzj0tQhDoAAiEA19RxeWOVBBpM6LOHg6v5Lf54YN1snkLf+sEXyZCuWQQ=
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/08.key b/tests/data_files/dir-maxpath/08.key
deleted file mode 100644
index d1ee9c5..0000000
--- a/tests/data_files/dir-maxpath/08.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIC8M2G7XcqeagYgt8SZJbuTh4tYchGvX3yDZJKTuBgFUoAoGCCqGSM49
-AwEHoUQDQgAEaUHkP2BkI55e0s6OlkrSdbu8bp0y+YwZFx/GgFUptKol+AA/+2D8
-WuRJxs2XS059ub0FZ30ABqTMfD9ZWIhmAg==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/09.crt b/tests/data_files/dir-maxpath/09.crt
deleted file mode 100644
index 8f67e54..0000000
--- a/tests/data_files/dir-maxpath/09.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1jCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDgwHhcNMTcwNjIyMTE1MDMzWhcN
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-N2Rv5X/VxIECIA/8rUALQxW38XSdBVX3e/jzu7ju47n1YwEqD9K9WdVv
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/09.key b/tests/data_files/dir-maxpath/09.key
deleted file mode 100644
index fe6a06f..0000000
--- a/tests/data_files/dir-maxpath/09.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIKkdxegP5yN840sBDxIPpiMftZss14uLaH7zoxOqrePDoAoGCCqGSM49
-AwEHoUQDQgAEe2QdevrehLH2oRsilBiVuZns5M43WmL3OJWyWijUcBUX3Nxf35jT
-krFBUoPxdDfr1BPnaCojwvMEcC875uLPuQ==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/10.crt b/tests/data_files/dir-maxpath/10.crt
deleted file mode 100644
index 72e699a..0000000
--- a/tests/data_files/dir-maxpath/10.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1zCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDkwHhcNMTcwNjIyMTE1MDMzWhcN
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-fVW7HNUktSYCIQDo6Jua6o/DJbrpq4qYWq5gv4yGyzPTN+3IaKrEICdaaw==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/10.key b/tests/data_files/dir-maxpath/10.key
deleted file mode 100644
index c5558f5..0000000
--- a/tests/data_files/dir-maxpath/10.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIPuPPMxo5e2doI7YfDp60qmEn4YwYs2sb5QlOpFQ3BIJoAoGCCqGSM49
-AwEHoUQDQgAEeo5RimyXeYYg8Te/PYJDnMKchyPcEcAqwAwDsDpDHjwT0ZcBnZu5
-sO2fxAJrtus0Zv4XMq7ODKpNi2mw4zyPVw==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/11.crt b/tests/data_files/dir-maxpath/11.crt
deleted file mode 100644
index e09e49f..0000000
--- a/tests/data_files/dir-maxpath/11.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1jCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMTAwHhcNMTcwNjIyMTE1MDMzWhcN
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-DTALBgNVBAMMBENBMTEwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAATZwR+WK6NB
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-BgNVHSMEUDBOgBQtxZSLJAkEz+2RKMQexM6EtsfgcqEzpDEwLzELMAkGA1UEBhMC
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-MAMBAf8wCgYIKoZIzj0EAwIDRwAwRAIgN//NqM0FrkrMjmxoeCY9DgxkH2R6sQ4d
-NgtwCZAIqEICIBs4vupaVcuvni9tltbP26wi7c0FR+blZuo5DPIA3SVe
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/11.key b/tests/data_files/dir-maxpath/11.key
deleted file mode 100644
index b34bf8c..0000000
--- a/tests/data_files/dir-maxpath/11.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIHaMieH2/wn6lnsFUGzww43ymhN16Z0nhG5TyvNeY8U2oAoGCCqGSM49
-AwEHoUQDQgAE2cEfliujQRf+64hXTet3PIY2HXWUUeJa81TT8IgUMZ58cKT8qw/Q
-Omjz5i3OkqhjiVuGRlQnKCAc3vUSVXogfQ==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/12.crt b/tests/data_files/dir-maxpath/12.crt
deleted file mode 100644
index 91ef9b0..0000000
--- a/tests/data_files/dir-maxpath/12.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1jCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMTEwHhcNMTcwNjIyMTE1MDMzWhcN
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-MAMBAf8wCgYIKoZIzj0EAwIDRwAwRAIgYYF5AnRV7eh2hLD5Dz//pceMTKz9Ls46
-E6DxvbfDHikCIFttlGrOCZVyS4ocsjuKIELVUX5qfygI0sn4kU3qCTs2
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/12.key b/tests/data_files/dir-maxpath/12.key
deleted file mode 100644
index 906bdc6..0000000
--- a/tests/data_files/dir-maxpath/12.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIAzhAcc1Yb2u4bsQDaYeRaRW8kJ/HzFTTfINV1k+TxZ/oAoGCCqGSM49
-AwEHoUQDQgAEwxPSz5Sz3IGd29AXIUfwJITRD/RwGr8GGnSSMs6D6OXnQlZ26EB+
-/Oo7GcGTWaAtIBwwIQphnCH0XpyEgKFbjw==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/13.crt b/tests/data_files/dir-maxpath/13.crt
deleted file mode 100644
index c23c165..0000000
--- a/tests/data_files/dir-maxpath/13.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1zCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMTIwHhcNMTcwNjIyMTE1MDMzWhcN
-MjcwNjIzMTE1MDMzWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMTMwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAATrkzCJLznh
-lhnsv1RXB9kfeaD+cIruPQ0cItBDGpdvD8xbBVvQci4+RG2RVUCSWRhkFYjSsUSM
-0QHMQnBFlhw2o4GJMIGGMB0GA1UdDgQWBBTmVnUSF2MYwws/nCMv7b1wJVkDmjBX
-BgNVHSMEUDBOgBTZTtbi+j0Sm/Zs/+gTkWdASpQzfqEzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTExggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDSAAwRQIgWsm+rHJgwUEyNm8EKbEds5yurpp5/3y5
-PsvXJVDqxogCIQDUP0Jcl3A907CE2tPVXSgD6LQ6CPu19mixemPw60yijA==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/13.key b/tests/data_files/dir-maxpath/13.key
deleted file mode 100644
index c8a04ef..0000000
--- a/tests/data_files/dir-maxpath/13.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIKb966FXMh8cFQt3sVpmcrh2/3yaGiLMwz+/XGKGMJ+2oAoGCCqGSM49
-AwEHoUQDQgAE65MwiS854ZYZ7L9UVwfZH3mg/nCK7j0NHCLQQxqXbw/MWwVb0HIu
-PkRtkVVAklkYZBWI0rFEjNEBzEJwRZYcNg==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/14.crt b/tests/data_files/dir-maxpath/14.crt
deleted file mode 100644
index 5ca323c..0000000
--- a/tests/data_files/dir-maxpath/14.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1zCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMTMwHhcNMTcwNjIyMTE1MDMzWhcN
-MjcwNjIzMTE1MDMzWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMTQwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAATRMZN0RHzP
-donNmZuq9XPhzvQ52TaokxT39qpQtlFyvUuEGKrLoNvdcpARaA0rGput6RLAQOVU
-iNVlJ3Ipj789o4GJMIGGMB0GA1UdDgQWBBRNsJB++ccSBmbCCKBxi4CjXROBkzBX
-BgNVHSMEUDBOgBTmVnUSF2MYwws/nCMv7b1wJVkDmqEzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTEyggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDSAAwRQIgVfuLpjp08AaxKWf6cuZUUCRd7CojSS1I
-71hzeUyFS+sCIQDNJI6P/pBbiHgTaGlBAgfcEfmxmbY0n4xZndtxIkmyVA==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/14.key b/tests/data_files/dir-maxpath/14.key
deleted file mode 100644
index a526a18..0000000
--- a/tests/data_files/dir-maxpath/14.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIKEycJNLyYJ5JgECpCuZiFeXZIMC+XsMEKoMhRTx6xD+oAoGCCqGSM49
-AwEHoUQDQgAE0TGTdER8z3aJzZmbqvVz4c70Odk2qJMU9/aqULZRcr1LhBiqy6Db
-3XKQEWgNKxqbrekSwEDlVIjVZSdyKY+/PQ==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/15.crt b/tests/data_files/dir-maxpath/15.crt
deleted file mode 100644
index bef923a..0000000
--- a/tests/data_files/dir-maxpath/15.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1zCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMTQwHhcNMTcwNjIyMTE1MDMzWhcN
-MjcwNjIzMTE1MDMzWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMTUwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQlKUiMoSss
-/hsTasedqdB2BCOGJhTt0hgUGeUnWNZ1svO4yn0GkFHZ08++fl2MKqjpj+VXq0JS
-FFyGUOgmgi3Ho4GJMIGGMB0GA1UdDgQWBBR1mXlrdW5rx1VnqMMnUBXo0WWGWjBX
-BgNVHSMEUDBOgBRNsJB++ccSBmbCCKBxi4CjXROBk6EzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTEzggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDSAAwRQIhAKYOIo+fdCQRqpH4LN8qUK1aKzKmWGxS
-fGzEEkg/29bMAiAl95cmucoCDMq2Ab8Coc0dEqyJ6+rAPMLBCbGawyiW6A==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/15.key b/tests/data_files/dir-maxpath/15.key
deleted file mode 100644
index 1d93908..0000000
--- a/tests/data_files/dir-maxpath/15.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIL1c0zvh4Fx8aylrlHsOsK5Pcam7BWVHM2lDxGO26QIUoAoGCCqGSM49
-AwEHoUQDQgAEJSlIjKErLP4bE2rHnanQdgQjhiYU7dIYFBnlJ1jWdbLzuMp9BpBR
-2dPPvn5djCqo6Y/lV6tCUhRchlDoJoItxw==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/16.crt b/tests/data_files/dir-maxpath/16.crt
deleted file mode 100644
index d9d998d..0000000
--- a/tests/data_files/dir-maxpath/16.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB2DCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMTUwHhcNMTcwNjIyMTE1MDMzWhcN
-MjcwNjIzMTE1MDMzWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMTYwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQ7Vsp7JmDN
-kgPh/+zmIPkd7o0xot/WPMFn3uAsGtsU385MF0fmhfFLhRbbH9h4JjYHj8y0spU3
-buUXhftvAZVbo4GJMIGGMB0GA1UdDgQWBBRTw3K0Psy3u/6+3KKSoaQqJnPvPjBX
-BgNVHSMEUDBOgBR1mXlrdW5rx1VnqMMnUBXo0WWGWqEzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTE0ggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDSQAwRgIhAMJnGjE9v3SjuGfi0jNByrwyNfhlTHMh
-FhPQidNrDpXwAiEAqYtNiV8t9RrAa9GC6FWDuJpvIiU6FsE+lFq6uIq/J2E=
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/16.key b/tests/data_files/dir-maxpath/16.key
deleted file mode 100644
index 70492de..0000000
--- a/tests/data_files/dir-maxpath/16.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIM0YCnGkEG/TjBxrytP9Ztslm1yoQaWptBxegRzzBRDVoAoGCCqGSM49
-AwEHoUQDQgAEO1bKeyZgzZID4f/s5iD5He6NMaLf1jzBZ97gLBrbFN/OTBdH5oXx
-S4UW2x/YeCY2B4/MtLKVN27lF4X7bwGVWw==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/17.crt b/tests/data_files/dir-maxpath/17.crt
deleted file mode 100644
index 1ee7849..0000000
--- a/tests/data_files/dir-maxpath/17.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1zCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMTYwHhcNMTcwNjIyMTE1MDMzWhcN
-MjcwNjIzMTE1MDMzWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMTcwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAARrISq2zO9m
-D29YCLHB56FdU/RINtRhfeLtM+u5o3HaAnopy0S98RzuEGELjpzr8ZI6kkMMZsj8
-nFZQF8HfuE0go4GJMIGGMB0GA1UdDgQWBBSnjWvpWxZcFnfQ2KGtCg/u6fT/DzBX
-BgNVHSMEUDBOgBRTw3K0Psy3u/6+3KKSoaQqJnPvPqEzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTE1ggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDSAAwRQIgDgXjoc6FfMF5W0NziV6vx2BOPNWav01Z
-ynEP4h9ULnUCIQC1rU4sEId3UdjzTKhpSGTKtaOuPG+b0YdEMPimI4jmVw==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/17.key b/tests/data_files/dir-maxpath/17.key
deleted file mode 100644
index eee33e8..0000000
--- a/tests/data_files/dir-maxpath/17.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIAiUS1dM3qrcOun8PjKe+rw40L2HG/Y8Dfxl0AfzyIVeoAoGCCqGSM49
-AwEHoUQDQgAEayEqtszvZg9vWAixweehXVP0SDbUYX3i7TPruaNx2gJ6KctEvfEc
-7hBhC46c6/GSOpJDDGbI/JxWUBfB37hNIA==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/18.crt b/tests/data_files/dir-maxpath/18.crt
deleted file mode 100644
index afd682e..0000000
--- a/tests/data_files/dir-maxpath/18.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB2DCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMTcwHhcNMTcwNjIyMTE1MDMzWhcN
-MjcwNjIzMTE1MDMzWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMTgwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAASsc/JkNcYf
-bMgpOfrL5kKOGxOJaGS6SQIeNO33UeBpToe1bU2acN652xjvcGo0fJEtxg2fcPHR
-hTnGMBD1u1N2o4GJMIGGMB0GA1UdDgQWBBSDbIpYntlhJ0GgIsyd75XRhlC18jBX
-BgNVHSMEUDBOgBSnjWvpWxZcFnfQ2KGtCg/u6fT/D6EzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTE2ggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDSQAwRgIhAJo2NXfJU1sK6SVTu4OV21FKITlXntMi
-oenYMsBjzO8oAiEAidSELcLjjAHi3mfBARvCgKlRhmbNEMCHQT7Ha7ZQoRw=
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/18.key b/tests/data_files/dir-maxpath/18.key
deleted file mode 100644
index 4591d03..0000000
--- a/tests/data_files/dir-maxpath/18.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIJETLWqIZtnejCGzESDgMnknxqEx5evMGZfzBVPKMwKKoAoGCCqGSM49
-AwEHoUQDQgAErHPyZDXGH2zIKTn6y+ZCjhsTiWhkukkCHjTt91HgaU6HtW1NmnDe
-udsY73BqNHyRLcYNn3Dx0YU5xjAQ9btTdg==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/19.crt b/tests/data_files/dir-maxpath/19.crt
deleted file mode 100644
index a2220e5..0000000
--- a/tests/data_files/dir-maxpath/19.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1jCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMTgwHhcNMTcwNjIyMTE1MDMzWhcN
-MjcwNjIzMTE1MDMzWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMTkwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQJyRCHND78
-KxZHoHHdOTjPuD6HjHPnEKX8apblUpETDJuLW7YR3V8Q0dTac+JHiR6e2l4DlDbf
-5bTiyFoAzw9yo4GJMIGGMB0GA1UdDgQWBBRQMc94kTqW+zQO3lo2WMI/81k3czBX
-BgNVHSMEUDBOgBSDbIpYntlhJ0GgIsyd75XRhlC18qEzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTE3ggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDRwAwRAIgIzGOZqJRmvygzvLm8zxZFyoNpcT7e26H
-nZd5xFIzEakCIHGYcUXzt+owSVlLmrlW8gQcB81ErQbxuBTAsvpaaKSS
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/19.key b/tests/data_files/dir-maxpath/19.key
deleted file mode 100644
index bb6562b..0000000
--- a/tests/data_files/dir-maxpath/19.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIDJyHSKbXEZVfkNftQF4eHeJVuXhGdaboa7w4RejL5uYoAoGCCqGSM49
-AwEHoUQDQgAECckQhzQ+/CsWR6Bx3Tk4z7g+h4xz5xCl/GqW5VKREwybi1u2Ed1f
-ENHU2nPiR4kentpeA5Q23+W04shaAM8Pcg==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/20.crt b/tests/data_files/dir-maxpath/20.crt
deleted file mode 100644
index c82a527..0000000
--- a/tests/data_files/dir-maxpath/20.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB1jCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMTkwHhcNMTcwNjIyMTE1MDMzWhcN
-MjcwNjIzMTE1MDMzWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMjAwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAATGebrN8JxE
-heOdCxD+mhnQ4zMUxF1WUkmAAHIUw089BYiH9SAwYS/M5tnl+R8fbjvoGqSpR6Tk
-V9EU3CQyIoxwo4GJMIGGMB0GA1UdDgQWBBTZs6oChL1c2CSZXY2YFQkkqg+lzDBX
-BgNVHSMEUDBOgBRQMc94kTqW+zQO3lo2WMI/81k3c6EzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTE4ggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDRwAwRAIgRVGZReXKvdMHhwLbPvbrTVLeAGDqmqMH
-/WqD4u23QBgCID/QtFaiawjviNFEdtU7JK6v4ZY0PQ0a0+HLZIHLi9ah
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/20.key b/tests/data_files/dir-maxpath/20.key
deleted file mode 100644
index 2ec68de..0000000
--- a/tests/data_files/dir-maxpath/20.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIJHLciDhJcnlE5MhTrOfFlnRbpJQLOf4h72E6VDXxMM0oAoGCCqGSM49
-AwEHoUQDQgAExnm6zfCcRIXjnQsQ/poZ0OMzFMRdVlJJgAByFMNPPQWIh/UgMGEv
-zObZ5fkfH2476BqkqUek5FfRFNwkMiKMcA==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/dir-maxpath/Readme.txt b/tests/data_files/dir-maxpath/Readme.txt
deleted file mode 100644
index 606ec6c..0000000
--- a/tests/data_files/dir-maxpath/Readme.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-These certificates form a very long chain, used to test the
-MBEDTLS_X509_MAX_INT_CA limit.
-
-NN.key is the private key of certificate NN.crt.
-
-The root is 00.crt and N+1.crt is a child of N.crt.
-
-File cNN.pem contains the chain NN.crt to 00.crt.
-
-Those certificates were generated by tests/data_files/dir-maxpath/long.sh.
diff --git a/tests/data_files/dir-maxpath/c00.pem b/tests/data_files/dir-maxpath/c00.pem
deleted file mode 100644
index c806648..0000000
--- a/tests/data_files/dir-maxpath/c00.pem
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBpTCCAUugAwIBAgIJAPygloXKk6BwMAoGCCqGSM49BAMCMC8xCzAJBgNVBAYT
-AlVLMREwDwYDVQQKDAhtYmVkIFRMUzENMAsGA1UEAwwEQ0EwMDAeFw0xNzA2MjIx
-MTUwMzJaFw0yNzA2MjMxMTUwMzJaMC8xCzAJBgNVBAYTAlVLMREwDwYDVQQKDAht
-YmVkIFRMUzENMAsGA1UEAwwEQ0EwMDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IA
-BFW41/qAwAPpy+Txdc7PKmzZsq9CPiujKU4vpF1ekXnGx2HP420QobwBVVWhkzRm
-LwdboH2j65dcCKjQ7mv/dxKjUDBOMB0GA1UdDgQWBBQlFYvU5WboI4fcdPoiQs8/
-fPHZrTAfBgNVHSMEGDAWgBQlFYvU5WboI4fcdPoiQs8/fPHZrTAMBgNVHRMEBTAD
-AQH/MAoGCCqGSM49BAMCA0gAMEUCIQC7iRcVzwMyfVK5imirJ7MqJQ04euH4CLOt
-IZ+SNfaERAIgSU0MWFDosVEIpg8YMqIHeF7Mg4ZyH6+fGazJgVLttUY=
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/c01.pem b/tests/data_files/dir-maxpath/c01.pem
deleted file mode 100644
index 302fcbd..0000000
--- a/tests/data_files/dir-maxpath/c01.pem
+++ /dev/null
@@ -1,24 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB3jCCAYWgAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDAwHhcNMTcwNjIyMTE1MDMyWhcN
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diff --git a/tests/data_files/dir-maxpath/c10.pem b/tests/data_files/dir-maxpath/c10.pem
deleted file mode 100644
index e293304..0000000
--- a/tests/data_files/dir-maxpath/c10.pem
+++ /dev/null
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diff --git a/tests/data_files/dir-maxpath/c13.pem b/tests/data_files/dir-maxpath/c13.pem
deleted file mode 100644
index d5039ba..0000000
--- a/tests/data_files/dir-maxpath/c13.pem
+++ /dev/null
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diff --git a/tests/data_files/dir-maxpath/c14.pem b/tests/data_files/dir-maxpath/c14.pem
deleted file mode 100644
index c6eca72..0000000
--- a/tests/data_files/dir-maxpath/c14.pem
+++ /dev/null
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diff --git a/tests/data_files/dir-maxpath/c15.pem b/tests/data_files/dir-maxpath/c15.pem
deleted file mode 100644
index 220420d..0000000
--- a/tests/data_files/dir-maxpath/c15.pem
+++ /dev/null
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diff --git a/tests/data_files/dir-maxpath/c16.pem b/tests/data_files/dir-maxpath/c16.pem
deleted file mode 100644
index 041a83b..0000000
--- a/tests/data_files/dir-maxpath/c16.pem
+++ /dev/null
@@ -1,204 +0,0 @@
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diff --git a/tests/data_files/dir-maxpath/c17.pem b/tests/data_files/dir-maxpath/c17.pem
deleted file mode 100644
index 5bdbafd..0000000
--- a/tests/data_files/dir-maxpath/c17.pem
+++ /dev/null
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diff --git a/tests/data_files/dir-maxpath/c18.pem b/tests/data_files/dir-maxpath/c18.pem
deleted file mode 100644
index d863189..0000000
--- a/tests/data_files/dir-maxpath/c18.pem
+++ /dev/null
@@ -1,228 +0,0 @@
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diff --git a/tests/data_files/dir-maxpath/c19.pem b/tests/data_files/dir-maxpath/c19.pem
deleted file mode 100644
index b1e24e4..0000000
--- a/tests/data_files/dir-maxpath/c19.pem
+++ /dev/null
@@ -1,240 +0,0 @@
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diff --git a/tests/data_files/dir-maxpath/c20.pem b/tests/data_files/dir-maxpath/c20.pem
deleted file mode 100644
index ff97472..0000000
--- a/tests/data_files/dir-maxpath/c20.pem
+++ /dev/null
@@ -1,252 +0,0 @@
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-MAMBAf8wCgYIKoZIzj0EAwIDRwAwRAIgAkiNhqFAZXSUWEDK91OZvQGdeZOtd6mC
-+Wv3fGk3t28CIEKOwidkUTUaiPdZ4efmAr+CEeGzdq27ob2S+nqqHqgV
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
-MIIB2DCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDIwHhcNMTcwNjIyMTE1MDMyWhcN
-MjcwNjIzMTE1MDMyWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMDMwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQRDXDNIi1p
-ereudhqwa2LslXgsxnB63Hu5y5lg+1WPruIYPzD/Ho0APveVdzFLVji19+bE4+tF
-PYL1SpsN1WfWo4GJMIGGMB0GA1UdDgQWBBQApzZdtBdD3dLxouQpr/aDiVttdzBX
-BgNVHSMEUDBOgBT5RCgQ0AlZTQbfFB2+6+w0XRvydaEzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTAxggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDSQAwRgIhAOnd+7bAofkHVa4KFNjv3TCegw1lrhuM
-8Of8wgvrTEGoAiEAsS8iKMpSfXH4D0egg4gLamE6akde965rDtySU+ve9lg=
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
-MIIB1zCCAX2gAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDEwHhcNMTcwNjIyMTE1MDMyWhcN
-MjcwNjIzMTE1MDMyWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMDIwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQWHpv1i6lf
-wvNPOP5ka6S0n55EvzoaYK6pbTXP6yMOW/4XZSPKx5Zoq4FMe0cKzGIIFL1rzj1V
-2czYB+qvLhyio4GJMIGGMB0GA1UdDgQWBBT5RCgQ0AlZTQbfFB2+6+w0XRvydTBX
-BgNVHSMEUDBOgBSh3uHkX5nj86yFEFwjscSWM40P+qEzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTAwggEBMAwGA1UdEwQF
-MAMBAf8wCgYIKoZIzj0EAwIDSAAwRQIhAI7unGW/gr9tOc3i+dF5N815srgh+FrX
-oj9Et74EcSpTAiBubv+vOH0DE0gmYI11HeAIgutWqqMIC72dZlwTF/Vi3g==
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
-MIIB3jCCAYWgAwIBAgIBATAKBggqhkjOPQQDAjAvMQswCQYDVQQGEwJVSzERMA8G
-A1UECgwIbWJlZCBUTFMxDTALBgNVBAMMBENBMDAwHhcNMTcwNjIyMTE1MDMyWhcN
-MjcwNjIzMTE1MDMyWjAvMQswCQYDVQQGEwJVSzERMA8GA1UECgwIbWJlZCBUTFMx
-DTALBgNVBAMMBENBMDEwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQznn9zHHwL
-GO8VR4W9V7vMlxCdoojzEOiX5Y6JtPtFOz866ueHY6zoN0/mJ6DnqnSXilJIUUeW
-6eGfqmka7nxko4GRMIGOMB0GA1UdDgQWBBSh3uHkX5nj86yFEFwjscSWM40P+jBf
-BgNVHSMEWDBWgBQlFYvU5WboI4fcdPoiQs8/fPHZraEzpDEwLzELMAkGA1UEBhMC
-VUsxETAPBgNVBAoMCG1iZWQgVExTMQ0wCwYDVQQDDARDQTAwggkA/KCWhcqToHAw
-DAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAgNHADBEAiBasbuinP+pJTU4oDCVD8zQ
-1rJBDSOKIEyWu84/D6Hj6wIgVMPUoO01bPhzllAa/gW8Xk/daey09SBgN3AT9pWU
-TDA=
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
-MIIBpTCCAUugAwIBAgIJAPygloXKk6BwMAoGCCqGSM49BAMCMC8xCzAJBgNVBAYT
-AlVLMREwDwYDVQQKDAhtYmVkIFRMUzENMAsGA1UEAwwEQ0EwMDAeFw0xNzA2MjIx
-MTUwMzJaFw0yNzA2MjMxMTUwMzJaMC8xCzAJBgNVBAYTAlVLMREwDwYDVQQKDAht
-YmVkIFRMUzENMAsGA1UEAwwEQ0EwMDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IA
-BFW41/qAwAPpy+Txdc7PKmzZsq9CPiujKU4vpF1ekXnGx2HP420QobwBVVWhkzRm
-LwdboH2j65dcCKjQ7mv/dxKjUDBOMB0GA1UdDgQWBBQlFYvU5WboI4fcdPoiQs8/
-fPHZrTAfBgNVHSMEGDAWgBQlFYvU5WboI4fcdPoiQs8/fPHZrTAMBgNVHRMEBTAD
-AQH/MAoGCCqGSM49BAMCA0gAMEUCIQC7iRcVzwMyfVK5imirJ7MqJQ04euH4CLOt
-IZ+SNfaERAIgSU0MWFDosVEIpg8YMqIHeF7Mg4ZyH6+fGazJgVLttUY=
------END CERTIFICATE-----
diff --git a/tests/data_files/dir-maxpath/int.opensslconf b/tests/data_files/dir-maxpath/int.opensslconf
deleted file mode 100644
index df28cab..0000000
--- a/tests/data_files/dir-maxpath/int.opensslconf
+++ /dev/null
@@ -1,4 +0,0 @@
-[int]
-subjectKeyIdentifier=hash
-authorityKeyIdentifier=keyid:always,issuer:always
-basicConstraints = CA:true
diff --git a/tests/data_files/dir-maxpath/long.sh b/tests/data_files/dir-maxpath/long.sh
deleted file mode 100755
index 22f3bf5..0000000
--- a/tests/data_files/dir-maxpath/long.sh
+++ /dev/null
@@ -1,35 +0,0 @@
-#!/bin/sh
-
-set -eu
-
-: ${OPENSSL:=openssl}
-NB=20
-
-OPT="-days 3653 -sha256"
-
-# generate self-signed root
-$OPENSSL ecparam -name prime256v1 -genkey -out 00.key
-$OPENSSL req -new -x509 -subj "/C=UK/O=mbed TLS/CN=CA00" $OPT \
-             -key 00.key -out 00.crt
-
-# cXX.pem is the chain starting at XX
-cp 00.crt c00.pem
-
-# generate long chain
-i=1
-while [ $i -le $NB ]; do
-    UP=$( printf "%02d" $((i-1)) )
-    ME=$( printf "%02d" $i )
-
-    $OPENSSL ecparam -name prime256v1 -genkey -out ${ME}.key
-    $OPENSSL req -new -subj "/C=UK/O=mbed TLS/CN=CA${ME}" \
-                 -key ${ME}.key -out ${ME}.csr
-    $OPENSSL x509 -req -CA ${UP}.crt -CAkey ${UP}.key -set_serial 1 $OPT \
-                  -extfile int.opensslconf -extensions int \
-                  -in ${ME}.csr -out ${ME}.crt
-
-    cat ${ME}.crt c${UP}.pem > c${ME}.pem
-
-    rm ${ME}.csr
-    i=$((i+1))
-done
diff --git a/tests/data_files/dir1/test-ca.crt b/tests/data_files/dir1/test-ca.crt
deleted file mode 100644
index 3c1d14c..0000000
--- a/tests/data_files/dir1/test-ca.crt
+++ /dev/null
@@ -1,80 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 0 (0x0)
-        Signature Algorithm: sha1WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:00 2011 GMT
-            Not After : Feb 12 14:44:00 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:c0:df:37:fc:17:bb:e0:96:9d:3f:86:de:96:32:
-                    7d:44:a5:16:a0:cd:21:f1:99:d4:ec:ea:cb:7c:18:
-                    58:08:94:a5:ec:9b:c5:8b:df:1a:1e:99:38:99:87:
-                    1e:7b:c0:8d:39:df:38:5d:70:78:07:d3:9e:d9:93:
-                    e8:b9:72:51:c5:ce:a3:30:52:a9:f2:e7:40:70:14:
-                    cb:44:a2:72:0b:c2:e5:40:f9:3e:e5:a6:0e:b3:f9:
-                    ec:4a:63:c0:b8:29:00:74:9c:57:3b:a8:a5:04:90:
-                    71:f1:bd:83:d9:3f:d6:a5:e2:3c:2a:8f:ef:27:60:
-                    c3:c6:9f:cb:ba:ec:60:7d:b7:e6:84:32:be:4f:fb:
-                    58:26:22:03:5b:d4:b4:d5:fb:f5:e3:96:2e:70:c0:
-                    e4:2e:bd:fc:2e:ee:e2:41:55:c0:34:2e:7d:24:72:
-                    69:cb:47:b1:14:40:83:7d:67:f4:86:f6:31:ab:f1:
-                    79:a4:b2:b5:2e:12:f9:84:17:f0:62:6f:27:3e:13:
-                    58:b1:54:0d:21:9a:73:37:a1:30:cf:6f:92:dc:f6:
-                    e9:fc:ac:db:2e:28:d1:7e:02:4b:23:a0:15:f2:38:
-                    65:64:09:ea:0c:6e:8e:1b:17:a0:71:c8:b3:9b:c9:
-                    ab:e9:c3:f2:cf:87:96:8f:80:02:32:9e:99:58:6f:
-                    a2:d5
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints:
-                CA:TRUE
-            X509v3 Subject Key Identifier:
-                B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-            X509v3 Authority Key Identifier:
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-                DirName:/C=NL/O=PolarSSL/CN=PolarSSL Test CA
-                serial:00
-
-    Signature Algorithm: sha1WithRSAEncryption
-        b8:fd:54:d8:00:54:90:8b:25:b0:27:dd:95:cd:a2:f7:84:07:
-        1d:87:89:4a:c4:78:11:d8:07:b5:d7:22:50:8e:48:eb:62:7a:
-        32:89:be:63:47:53:ff:b6:be:f1:2e:8c:54:c0:99:3f:a0:b9:
-        37:23:72:5f:0d:46:59:8f:d8:47:cd:97:4c:9f:07:0c:12:62:
-        09:3a:24:e4:36:d9:e9:2c:da:38:d0:73:75:61:d7:c1:6c:26:
-        8b:9b:e0:d5:dc:67:ed:8c:6b:33:d7:74:22:3c:4c:db:b5:8d:
-        2a:ce:2c:0d:08:59:05:09:05:a6:39:9f:b3:67:1b:e2:83:e5:
-        e1:8f:53:f6:67:93:c7:f9:6f:76:44:58:12:e8:3a:d4:97:e7:
-        e9:c0:3e:a8:7a:72:3d:87:53:1f:e5:2c:84:84:e7:9a:9e:7f:
-        66:d9:1f:9b:f5:13:48:b0:4d:14:d1:de:b2:24:d9:78:7d:f5:
-        35:cc:58:19:d1:d2:99:ef:4d:73:f8:1f:89:d4:5a:d0:52:ce:
-        09:f5:b1:46:51:6a:00:8e:3b:cc:6f:63:01:00:99:ed:9d:a6:
-        08:60:cd:32:18:d0:73:e0:58:71:d9:e5:d2:53:d7:8d:d0:ca:
-        e9:5d:2a:0a:0d:5d:55:ec:21:50:17:16:e6:06:4a:cd:5e:de:
-        f7:e0:e9:54
------BEGIN CERTIFICATE-----
-MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDAwWhcNMjEwMjEyMTQ0NDAwWjA7MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G
-CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx
-mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny
-50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n
-YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL
-R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu
-KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj
-gZUwgZIwDAYDVR0TBAUwAwEB/zAdBgNVHQ4EFgQUtFrkpbPe0lL2udWmlQ/rPrzH
-/f8wYwYDVR0jBFwwWoAUtFrkpbPe0lL2udWmlQ/rPrzH/f+hP6Q9MDsxCzAJBgNV
-BAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEZMBcGA1UEAxMQUG9sYXJTU0wgVGVz
-dCBDQYIBADANBgkqhkiG9w0BAQUFAAOCAQEAuP1U2ABUkIslsCfdlc2i94QHHYeJ
-SsR4EdgHtdciUI5I62J6Mom+Y0dT/7a+8S6MVMCZP6C5NyNyXw1GWY/YR82XTJ8H
-DBJiCTok5DbZ6SzaONBzdWHXwWwmi5vg1dxn7YxrM9d0IjxM27WNKs4sDQhZBQkF
-pjmfs2cb4oPl4Y9T9meTx/lvdkRYEug61Jfn6cA+qHpyPYdTH+UshITnmp5/Ztkf
-m/UTSLBNFNHesiTZeH31NcxYGdHSme9Nc/gfidRa0FLOCfWxRlFqAI47zG9jAQCZ
-7Z2mCGDNMhjQc+BYcdnl0lPXjdDK6V0qCg1dVewhUBcW5gZKzV7e9+DpVA==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir2/test-ca.crt b/tests/data_files/dir2/test-ca.crt
deleted file mode 100644
index 3c1d14c..0000000
--- a/tests/data_files/dir2/test-ca.crt
+++ /dev/null
@@ -1,80 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 0 (0x0)
-        Signature Algorithm: sha1WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:00 2011 GMT
-            Not After : Feb 12 14:44:00 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:c0:df:37:fc:17:bb:e0:96:9d:3f:86:de:96:32:
-                    7d:44:a5:16:a0:cd:21:f1:99:d4:ec:ea:cb:7c:18:
-                    58:08:94:a5:ec:9b:c5:8b:df:1a:1e:99:38:99:87:
-                    1e:7b:c0:8d:39:df:38:5d:70:78:07:d3:9e:d9:93:
-                    e8:b9:72:51:c5:ce:a3:30:52:a9:f2:e7:40:70:14:
-                    cb:44:a2:72:0b:c2:e5:40:f9:3e:e5:a6:0e:b3:f9:
-                    ec:4a:63:c0:b8:29:00:74:9c:57:3b:a8:a5:04:90:
-                    71:f1:bd:83:d9:3f:d6:a5:e2:3c:2a:8f:ef:27:60:
-                    c3:c6:9f:cb:ba:ec:60:7d:b7:e6:84:32:be:4f:fb:
-                    58:26:22:03:5b:d4:b4:d5:fb:f5:e3:96:2e:70:c0:
-                    e4:2e:bd:fc:2e:ee:e2:41:55:c0:34:2e:7d:24:72:
-                    69:cb:47:b1:14:40:83:7d:67:f4:86:f6:31:ab:f1:
-                    79:a4:b2:b5:2e:12:f9:84:17:f0:62:6f:27:3e:13:
-                    58:b1:54:0d:21:9a:73:37:a1:30:cf:6f:92:dc:f6:
-                    e9:fc:ac:db:2e:28:d1:7e:02:4b:23:a0:15:f2:38:
-                    65:64:09:ea:0c:6e:8e:1b:17:a0:71:c8:b3:9b:c9:
-                    ab:e9:c3:f2:cf:87:96:8f:80:02:32:9e:99:58:6f:
-                    a2:d5
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints:
-                CA:TRUE
-            X509v3 Subject Key Identifier:
-                B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-            X509v3 Authority Key Identifier:
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-                DirName:/C=NL/O=PolarSSL/CN=PolarSSL Test CA
-                serial:00
-
-    Signature Algorithm: sha1WithRSAEncryption
-        b8:fd:54:d8:00:54:90:8b:25:b0:27:dd:95:cd:a2:f7:84:07:
-        1d:87:89:4a:c4:78:11:d8:07:b5:d7:22:50:8e:48:eb:62:7a:
-        32:89:be:63:47:53:ff:b6:be:f1:2e:8c:54:c0:99:3f:a0:b9:
-        37:23:72:5f:0d:46:59:8f:d8:47:cd:97:4c:9f:07:0c:12:62:
-        09:3a:24:e4:36:d9:e9:2c:da:38:d0:73:75:61:d7:c1:6c:26:
-        8b:9b:e0:d5:dc:67:ed:8c:6b:33:d7:74:22:3c:4c:db:b5:8d:
-        2a:ce:2c:0d:08:59:05:09:05:a6:39:9f:b3:67:1b:e2:83:e5:
-        e1:8f:53:f6:67:93:c7:f9:6f:76:44:58:12:e8:3a:d4:97:e7:
-        e9:c0:3e:a8:7a:72:3d:87:53:1f:e5:2c:84:84:e7:9a:9e:7f:
-        66:d9:1f:9b:f5:13:48:b0:4d:14:d1:de:b2:24:d9:78:7d:f5:
-        35:cc:58:19:d1:d2:99:ef:4d:73:f8:1f:89:d4:5a:d0:52:ce:
-        09:f5:b1:46:51:6a:00:8e:3b:cc:6f:63:01:00:99:ed:9d:a6:
-        08:60:cd:32:18:d0:73:e0:58:71:d9:e5:d2:53:d7:8d:d0:ca:
-        e9:5d:2a:0a:0d:5d:55:ec:21:50:17:16:e6:06:4a:cd:5e:de:
-        f7:e0:e9:54
------BEGIN CERTIFICATE-----
-MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDAwWhcNMjEwMjEyMTQ0NDAwWjA7MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G
-CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx
-mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny
-50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n
-YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL
-R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu
-KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj
-gZUwgZIwDAYDVR0TBAUwAwEB/zAdBgNVHQ4EFgQUtFrkpbPe0lL2udWmlQ/rPrzH
-/f8wYwYDVR0jBFwwWoAUtFrkpbPe0lL2udWmlQ/rPrzH/f+hP6Q9MDsxCzAJBgNV
-BAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEZMBcGA1UEAxMQUG9sYXJTU0wgVGVz
-dCBDQYIBADANBgkqhkiG9w0BAQUFAAOCAQEAuP1U2ABUkIslsCfdlc2i94QHHYeJ
-SsR4EdgHtdciUI5I62J6Mom+Y0dT/7a+8S6MVMCZP6C5NyNyXw1GWY/YR82XTJ8H
-DBJiCTok5DbZ6SzaONBzdWHXwWwmi5vg1dxn7YxrM9d0IjxM27WNKs4sDQhZBQkF
-pjmfs2cb4oPl4Y9T9meTx/lvdkRYEug61Jfn6cA+qHpyPYdTH+UshITnmp5/Ztkf
-m/UTSLBNFNHesiTZeH31NcxYGdHSme9Nc/gfidRa0FLOCfWxRlFqAI47zG9jAQCZ
-7Z2mCGDNMhjQc+BYcdnl0lPXjdDK6V0qCg1dVewhUBcW5gZKzV7e9+DpVA==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir2/test-ca2.crt b/tests/data_files/dir2/test-ca2.crt
deleted file mode 100644
index d41a420..0000000
--- a/tests/data_files/dir2/test-ca2.crt
+++ /dev/null
@@ -1,15 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICUjCCAdegAwIBAgIJAMFD4n5iQ8zoMAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTAeFw0xMzA5MjQxNTQ5NDhaFw0yMzA5MjIxNTQ5NDhaMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTB2MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBu
-ww5XUzM5WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiy
-aY7zQa0pw7RfdadHb9UZKVVpmlM7ILRmFmAzHqOBoDCBnTAdBgNVHQ4EFgQUnW0g
-JEkBPyvLeLUZvH4kydv7NnwwbgYDVR0jBGcwZYAUnW0gJEkBPyvLeLUZvH4kydv7
-NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UE
-AxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAwGA1UdEwQFMAMBAf8w
-CgYIKoZIzj0EAwIDaQAwZgIxAMO0YnNWKJUAfXgSJtJxexn4ipg+kv4znuR50v56
-t4d0PCu412mUC6Nnd7izvtE2MgIxAP1nnJQjZ8BWukszFQDG48wxCCyci9qpdSMv
-uCjn8pwUOkABXK8Mss90fzCfCEOtIA==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir3/Readme b/tests/data_files/dir3/Readme
deleted file mode 100644
index 189dadc..0000000
--- a/tests/data_files/dir3/Readme
+++ /dev/null
@@ -1 +0,0 @@
-This is just to make sure files that don't parse as certs are ignored.
diff --git a/tests/data_files/dir3/test-ca.crt b/tests/data_files/dir3/test-ca.crt
deleted file mode 100644
index 3c1d14c..0000000
--- a/tests/data_files/dir3/test-ca.crt
+++ /dev/null
@@ -1,80 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 0 (0x0)
-        Signature Algorithm: sha1WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:00 2011 GMT
-            Not After : Feb 12 14:44:00 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:c0:df:37:fc:17:bb:e0:96:9d:3f:86:de:96:32:
-                    7d:44:a5:16:a0:cd:21:f1:99:d4:ec:ea:cb:7c:18:
-                    58:08:94:a5:ec:9b:c5:8b:df:1a:1e:99:38:99:87:
-                    1e:7b:c0:8d:39:df:38:5d:70:78:07:d3:9e:d9:93:
-                    e8:b9:72:51:c5:ce:a3:30:52:a9:f2:e7:40:70:14:
-                    cb:44:a2:72:0b:c2:e5:40:f9:3e:e5:a6:0e:b3:f9:
-                    ec:4a:63:c0:b8:29:00:74:9c:57:3b:a8:a5:04:90:
-                    71:f1:bd:83:d9:3f:d6:a5:e2:3c:2a:8f:ef:27:60:
-                    c3:c6:9f:cb:ba:ec:60:7d:b7:e6:84:32:be:4f:fb:
-                    58:26:22:03:5b:d4:b4:d5:fb:f5:e3:96:2e:70:c0:
-                    e4:2e:bd:fc:2e:ee:e2:41:55:c0:34:2e:7d:24:72:
-                    69:cb:47:b1:14:40:83:7d:67:f4:86:f6:31:ab:f1:
-                    79:a4:b2:b5:2e:12:f9:84:17:f0:62:6f:27:3e:13:
-                    58:b1:54:0d:21:9a:73:37:a1:30:cf:6f:92:dc:f6:
-                    e9:fc:ac:db:2e:28:d1:7e:02:4b:23:a0:15:f2:38:
-                    65:64:09:ea:0c:6e:8e:1b:17:a0:71:c8:b3:9b:c9:
-                    ab:e9:c3:f2:cf:87:96:8f:80:02:32:9e:99:58:6f:
-                    a2:d5
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints:
-                CA:TRUE
-            X509v3 Subject Key Identifier:
-                B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-            X509v3 Authority Key Identifier:
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-                DirName:/C=NL/O=PolarSSL/CN=PolarSSL Test CA
-                serial:00
-
-    Signature Algorithm: sha1WithRSAEncryption
-        b8:fd:54:d8:00:54:90:8b:25:b0:27:dd:95:cd:a2:f7:84:07:
-        1d:87:89:4a:c4:78:11:d8:07:b5:d7:22:50:8e:48:eb:62:7a:
-        32:89:be:63:47:53:ff:b6:be:f1:2e:8c:54:c0:99:3f:a0:b9:
-        37:23:72:5f:0d:46:59:8f:d8:47:cd:97:4c:9f:07:0c:12:62:
-        09:3a:24:e4:36:d9:e9:2c:da:38:d0:73:75:61:d7:c1:6c:26:
-        8b:9b:e0:d5:dc:67:ed:8c:6b:33:d7:74:22:3c:4c:db:b5:8d:
-        2a:ce:2c:0d:08:59:05:09:05:a6:39:9f:b3:67:1b:e2:83:e5:
-        e1:8f:53:f6:67:93:c7:f9:6f:76:44:58:12:e8:3a:d4:97:e7:
-        e9:c0:3e:a8:7a:72:3d:87:53:1f:e5:2c:84:84:e7:9a:9e:7f:
-        66:d9:1f:9b:f5:13:48:b0:4d:14:d1:de:b2:24:d9:78:7d:f5:
-        35:cc:58:19:d1:d2:99:ef:4d:73:f8:1f:89:d4:5a:d0:52:ce:
-        09:f5:b1:46:51:6a:00:8e:3b:cc:6f:63:01:00:99:ed:9d:a6:
-        08:60:cd:32:18:d0:73:e0:58:71:d9:e5:d2:53:d7:8d:d0:ca:
-        e9:5d:2a:0a:0d:5d:55:ec:21:50:17:16:e6:06:4a:cd:5e:de:
-        f7:e0:e9:54
------BEGIN CERTIFICATE-----
-MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDAwWhcNMjEwMjEyMTQ0NDAwWjA7MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G
-CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx
-mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny
-50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n
-YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL
-R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu
-KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj
-gZUwgZIwDAYDVR0TBAUwAwEB/zAdBgNVHQ4EFgQUtFrkpbPe0lL2udWmlQ/rPrzH
-/f8wYwYDVR0jBFwwWoAUtFrkpbPe0lL2udWmlQ/rPrzH/f+hP6Q9MDsxCzAJBgNV
-BAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEZMBcGA1UEAxMQUG9sYXJTU0wgVGVz
-dCBDQYIBADANBgkqhkiG9w0BAQUFAAOCAQEAuP1U2ABUkIslsCfdlc2i94QHHYeJ
-SsR4EdgHtdciUI5I62J6Mom+Y0dT/7a+8S6MVMCZP6C5NyNyXw1GWY/YR82XTJ8H
-DBJiCTok5DbZ6SzaONBzdWHXwWwmi5vg1dxn7YxrM9d0IjxM27WNKs4sDQhZBQkF
-pjmfs2cb4oPl4Y9T9meTx/lvdkRYEug61Jfn6cA+qHpyPYdTH+UshITnmp5/Ztkf
-m/UTSLBNFNHesiTZeH31NcxYGdHSme9Nc/gfidRa0FLOCfWxRlFqAI47zG9jAQCZ
-7Z2mCGDNMhjQc+BYcdnl0lPXjdDK6V0qCg1dVewhUBcW5gZKzV7e9+DpVA==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir3/test-ca2.crt b/tests/data_files/dir3/test-ca2.crt
deleted file mode 100644
index d41a420..0000000
--- a/tests/data_files/dir3/test-ca2.crt
+++ /dev/null
@@ -1,15 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICUjCCAdegAwIBAgIJAMFD4n5iQ8zoMAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTAeFw0xMzA5MjQxNTQ5NDhaFw0yMzA5MjIxNTQ5NDhaMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTB2MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBu
-ww5XUzM5WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiy
-aY7zQa0pw7RfdadHb9UZKVVpmlM7ILRmFmAzHqOBoDCBnTAdBgNVHQ4EFgQUnW0g
-JEkBPyvLeLUZvH4kydv7NnwwbgYDVR0jBGcwZYAUnW0gJEkBPyvLeLUZvH4kydv7
-NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UE
-AxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAwGA1UdEwQFMAMBAf8w
-CgYIKoZIzj0EAwIDaQAwZgIxAMO0YnNWKJUAfXgSJtJxexn4ipg+kv4znuR50v56
-t4d0PCu412mUC6Nnd7izvtE2MgIxAP1nnJQjZ8BWukszFQDG48wxCCyci9qpdSMv
-uCjn8pwUOkABXK8Mss90fzCfCEOtIA==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/Readme b/tests/data_files/dir4/Readme
deleted file mode 100644
index 3f1f610..0000000
--- a/tests/data_files/dir4/Readme
+++ /dev/null
@@ -1,47 +0,0 @@
-This directory contains the certificates for the tests targeting the enforcement of the policy indicated by the *pathLenConstraint* field. All leaf elements were generated with *is_ca* unset and all roots with the *selfsign=1* option. 
-
-1. zero pathlen constraint on an intermediate CA (invalid)
-```
-cert11.crt -> cert12.crt (max_pathlen=0) -> cert13.crt -> cert14.crt
-```
-
-2. zero pathlen constraint on the root CA (invalid)
-```
-cert21.crt (max_pathlen=0) -> cert22.crt -> cert23.crt
-```
-
-3. nonzero pathlen constraint on the root CA (invalid)
-```
-cert31.crt (max_pathlen=1) -> cert32.crt -> cert33.crt -> cert34.crt
-```
-
-4. nonzero pathlen constraint on an intermediate CA (invalid)
-```
-cert41.crt -> cert42.crt (max_pathlen=1) -> cert43.crt -> cert44.crt -> cert45.crt 
-```
-
-5. nonzero pathlen constraint on an intermediate CA with maximum number of elements in the chain (valid)
-```
-cert51.crt -> cert52.crt (max_pathlen=1) -> cert53.crt -> cert54.crt
-```
-
-6. nonzero pathlen constraint on the root CA with maximum number of elements in the chain (valid)
-```
-cert61.crt (max_pathlen=1) -> cert62.crt -> cert63.crt
-```
-
-7. pathlen constraint on the root CA with maximum number of elements and a self signed certificate in the chain (valid) 
-(This situation happens for example when a root of some hierarchy gets integrated into another hierarchy. In this case the certificates issued before the integration will have an intermadiate self signed certificate in their chain)
-```
-cert71.crt (max_pathlen=1) -> cert72.crt -> cert73.crt (self signed) -> cert74.crt -> cert74.crt
-```
-
-8. zero pathlen constraint on first intermediate CA (valid)
-```
-cert81.crt -> cert82.crt (max_pathlen=0) -> cert83.crt
-```
-
-9. zero pathlen constraint on trusted root (valid)
-```
-cert91.crt (max_pathlen=0) -> cert92.crt
-```
diff --git a/tests/data_files/dir4/cert11.crt b/tests/data_files/dir4/cert11.crt
deleted file mode 100644
index 3077c3d..0000000
--- a/tests/data_files/dir4/cert11.crt
+++ /dev/null
@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIC9zCCAd+gAwIBAgIBATANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDEwtUZXN0
-IHJvb3QgMjAeFw0wMTAxMDEwMDAwMDBaFw0zMDEyMzEyMzU5NTlaMBYxFDASBgNV
-BAMTC1Rlc3Qgcm9vdCAyMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA
-hqLw+KDH8+tkX9hphnydOZFoueGTY5v8WdYI6KZXoIln9IAu4Rmb6M59uLziXurg
-VKuwBqOkbUZsIY0NOA6C8FpdjZL1di8Viq669vBBs9c+x9hKpx8/VVcZfTaGgqni
-h5XiivQynBQ4E2KOxEQ+VjUMDqIBHYG1VXWs4KMkAeJsqDYHtmS4XsC9TXTIri5S
-9IX4mE5A9+ngSTo0/6Sjwcd27uO2IQHXDC7jkxX5OH5jFPAqsVKTYDeWlCU7bvbr
-iy1H9Z9uCl+M7unbAl8BKQ8leOnno3KO3lQQAPGP2EFRT0XMuUXJnfydPbzMa9FY
-ufB1I8zCBZviPvO/Of3yrwIDAQABo1AwTjAMBgNVHRMEBTADAQEBMB0GA1UdDgQW
-BBSUHSH6gjrYFZnS1gDvk7BpfwTKwDAfBgNVHSMEGDAWgBSUHSH6gjrYFZnS1gDv
-k7BpfwTKwDANBgkqhkiG9w0BAQsFAAOCAQEATLqZGFEBO+2IiHjkn7pBkAuktmHm
-jkkuFLONwe0vlxZFaabaFqSgkoS5eZ50D0dmuUkpJRNMnGK1B/ja5RewtAdxD6us
-VT8JpeWYkhxaSIHjUW95jJLMVr17it8jHawI05tD26nqDjTq3C2rM4ExpAaK/Dgv
-83ZHe4IdvenkXckDMIjmSsK0GfomZmKvmnfxhg4FnQvZGI48JJUqPA2dHxRhUyr4
-ohBmH5Xi5oLICd85GRi8YqD00agKL99EjGulaKNEdsQkrC4ZvY6QDV0EEnbu8b4R
-GfiA42UWN2dKNSqNhBOrP9g5yTcIWXh1Dwpd1Z9vhBCwmBegPqqM5IM1dQ==
------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert12.crt b/tests/data_files/dir4/cert12.crt
deleted file mode 100644
index fd88c2d..0000000
--- a/tests/data_files/dir4/cert12.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDCjCCAfKgAwIBAgIBATANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDEwtUZXN0
-IHJvb3QgMjAeFw0wMTAxMDEwMDAwMDBaFw0zMDEyMzEyMzU5NTlaMCYxJDAiBgNV
-BAMTG1Rlc3QgaW50ZXJtZWRpYXRlIG1heHBhdGggMTCCASIwDQYJKoZIhvcNAQEB
-BQADggEPADCCAQoCggEBANJrP7/Y+KjupvlgaOmQYArfGuoh3CzcdPe/mlhq+fxD
-8U9qzgSVuVR+FpNZi9DyMljMBrWV1OnZI+cVCDYYkNMa3IkV+AkzJGqwcSBKE+6N
-RXZvv+I4xbGymdSSaT6Kh1PgPVk/EYNfLFF30pBsycjM81aMtZgW6aA9xCSp0r8W
-XkZodsrJUQerDh/7VmDVEeKanZog8auvrvs/ENiA8d4p/75lOIER4nLz6SSn5Eqy
-uXzNCwmT5PVwWStXbDD7EBs3rOtR2VNWQ9o6QdfKQOe/SkIddZr1IWGEJ8JHjtNo
-jxcYO67A+Jgp1Jwjk+83eRICs0hlWyeHWfBlbOVIKLcCAwEAAaNTMFEwDwYDVR0T
-BAgwBgEBAQIBADAdBgNVHQ4EFgQUyw8Phy/FAvifGQ+G6HWkMiWzyqUwHwYDVR0j
-BBgwFoAUlB0h+oI62BWZ0tYA75OwaX8EysAwDQYJKoZIhvcNAQELBQADggEBACFS
-6tFy9TpVMUfh1mkr3rFEVtho0NJkRhJW8z2PTmKQa069S9gS+U6+CsqwvM1y3yyh
-Pt2q34fhhhbQ+gS8iAm+zvQtBsys3frfVkeKmRzxWDh2LnT+tJi/xtqdlULua5NB
-21So46HdlceDTuv2vUbrHgxUS/IEjIL6OZZ0Sc6S6YybvGSioGsRUHO2k2IiOnUa
-C+hpBvOkXScnItfdMKAAce71CsZeN97sbxeNIMBDiX9bSy+dZLscEhRwBUABiNr/
-sYdYvIpbrFXowjMtBdac+vvhcem7dkCrCdsGylGINWhE2tC9hKmFkFXo4mu/AGDS
-M4/59TlMeK8X+WZ9zBs=
------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert13.crt b/tests/data_files/dir4/cert13.crt
deleted file mode 100644
index ac01a22..0000000
--- a/tests/data_files/dir4/cert13.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDFzCCAf+gAwIBAgIBATANBgkqhkiG9w0BAQsFADAmMSQwIgYDVQQDExtUZXN0
-IGludGVybWVkaWF0ZSBtYXhwYXRoIDEwHhcNMDEwMTAxMDAwMDAwWhcNMzAxMjMx
-MjM1OTU5WjAmMSQwIgYDVQQDExtUZXN0IGludGVybWVkaWF0ZSBtYXhwYXRoIDIw
-ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCs0qdKXytu/GTKpa2H0CE3
-OPSIMM2hiYbavzUroyL+hFv9XVoxh5CGnVUxK7B9ifVvzyElrcV7tjuIlGwp1hLH
-tx/YU22xksI/n5/NS/qrxkK5xjwEWB9lx93rwLK0QnfjYRZrir7yySoBKi6IlHOv
-GOwl0V/JAslMWwUZlFmvYvoCWSWGrDAkxWVnHq+HoZ7YoM/bdJdsIIJYe3tt7L8D
-cJVP5dQ8jSs8/Ehm8BbG339r3B7v/KdK8zuoMig9ag/YOu9jOb0QvYC2HdZoL4WV
-N+7aasTQmDGWGOt7fk7AEl0EI8lDvr2O/5q6ad9jRCkxyq3lJwRy+M3MdVKgA1On
-AgMBAAGjUDBOMAwGA1UdEwQFMAMBAQEwHQYDVR0OBBYEFM6u5Gkjkxb8PDdQIGKD
-D8t1Zv/9MB8GA1UdIwQYMBaAFMsPD4cvxQL4nxkPhuh1pDIls8qlMA0GCSqGSIb3
-DQEBCwUAA4IBAQCLpKATt01DUM8wCiDFVSpmpiCBqxnLRfQuY+ta1p+f15LME+cT
-94lwaYCfCBtXQYwiuVFYdK8ztWEStPg6BecMLPB2K9gO/talxUoVDumsmR83p+2y
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert14.crt b/tests/data_files/dir4/cert14.crt
deleted file mode 100644
index 49e1cbb..0000000
--- a/tests/data_files/dir4/cert14.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert21.crt b/tests/data_files/dir4/cert21.crt
deleted file mode 100644
index 501c5d7..0000000
--- a/tests/data_files/dir4/cert21.crt
+++ /dev/null
@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert22.crt b/tests/data_files/dir4/cert22.crt
deleted file mode 100644
index 5dcd65d..0000000
--- a/tests/data_files/dir4/cert22.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert23.crt b/tests/data_files/dir4/cert23.crt
deleted file mode 100644
index 6c54725..0000000
--- a/tests/data_files/dir4/cert23.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert31.crt b/tests/data_files/dir4/cert31.crt
deleted file mode 100644
index 8c2af4c..0000000
--- a/tests/data_files/dir4/cert31.crt
+++ /dev/null
@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert32.crt b/tests/data_files/dir4/cert32.crt
deleted file mode 100644
index 5dcd65d..0000000
--- a/tests/data_files/dir4/cert32.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert33.crt b/tests/data_files/dir4/cert33.crt
deleted file mode 100644
index 8e5d192..0000000
--- a/tests/data_files/dir4/cert33.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert34.crt b/tests/data_files/dir4/cert34.crt
deleted file mode 100644
index bebcb65..0000000
--- a/tests/data_files/dir4/cert34.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert41.crt b/tests/data_files/dir4/cert41.crt
deleted file mode 100644
index 7065c94..0000000
--- a/tests/data_files/dir4/cert41.crt
+++ /dev/null
@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert42.crt b/tests/data_files/dir4/cert42.crt
deleted file mode 100644
index c071318..0000000
--- a/tests/data_files/dir4/cert42.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert43.crt b/tests/data_files/dir4/cert43.crt
deleted file mode 100644
index 8e5d192..0000000
--- a/tests/data_files/dir4/cert43.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert44.crt b/tests/data_files/dir4/cert44.crt
deleted file mode 100644
index 084fb2d..0000000
--- a/tests/data_files/dir4/cert44.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert45.crt b/tests/data_files/dir4/cert45.crt
deleted file mode 100644
index e5d5b3d..0000000
--- a/tests/data_files/dir4/cert45.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert51.crt b/tests/data_files/dir4/cert51.crt
deleted file mode 100644
index 7065c94..0000000
--- a/tests/data_files/dir4/cert51.crt
+++ /dev/null
@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert52.crt b/tests/data_files/dir4/cert52.crt
deleted file mode 100644
index c071318..0000000
--- a/tests/data_files/dir4/cert52.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert53.crt b/tests/data_files/dir4/cert53.crt
deleted file mode 100644
index 8e5d192..0000000
--- a/tests/data_files/dir4/cert53.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert54.crt b/tests/data_files/dir4/cert54.crt
deleted file mode 100644
index e42e14f..0000000
--- a/tests/data_files/dir4/cert54.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert61.crt b/tests/data_files/dir4/cert61.crt
deleted file mode 100644
index 8c2af4c..0000000
--- a/tests/data_files/dir4/cert61.crt
+++ /dev/null
@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert62.crt b/tests/data_files/dir4/cert62.crt
deleted file mode 100644
index 5dcd65d..0000000
--- a/tests/data_files/dir4/cert62.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert63.crt b/tests/data_files/dir4/cert63.crt
deleted file mode 100644
index ffa90e4..0000000
--- a/tests/data_files/dir4/cert63.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert71.crt b/tests/data_files/dir4/cert71.crt
deleted file mode 100644
index 8c2af4c..0000000
--- a/tests/data_files/dir4/cert71.crt
+++ /dev/null
@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert72.crt b/tests/data_files/dir4/cert72.crt
deleted file mode 100644
index 5dcd65d..0000000
--- a/tests/data_files/dir4/cert72.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert73.crt b/tests/data_files/dir4/cert73.crt
deleted file mode 100644
index 6854c74..0000000
--- a/tests/data_files/dir4/cert73.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert74.crt b/tests/data_files/dir4/cert74.crt
deleted file mode 100644
index 920c4c2..0000000
--- a/tests/data_files/dir4/cert74.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert81.crt b/tests/data_files/dir4/cert81.crt
deleted file mode 100644
index 26b2bd5..0000000
--- a/tests/data_files/dir4/cert81.crt
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert82.crt b/tests/data_files/dir4/cert82.crt
deleted file mode 100644
index d49ecc9..0000000
--- a/tests/data_files/dir4/cert82.crt
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert83.crt b/tests/data_files/dir4/cert83.crt
deleted file mode 100644
index 21a748e..0000000
--- a/tests/data_files/dir4/cert83.crt
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert91.crt b/tests/data_files/dir4/cert91.crt
deleted file mode 100644
index 6d4605a..0000000
--- a/tests/data_files/dir4/cert91.crt
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert92.crt b/tests/data_files/dir4/cert92.crt
deleted file mode 100644
index 49b53a5..0000000
--- a/tests/data_files/dir4/cert92.crt
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBoTCCAUWgAwIBAgIBXDAMBggqhkjOPQQDAgUAMDExDzANBgNVBAMTBlJvb3Qg
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------END CERTIFICATE-----
diff --git a/tests/data_files/enco-ca-prstr.pem b/tests/data_files/enco-ca-prstr.pem
deleted file mode 100644
index 6503314..0000000
--- a/tests/data_files/enco-ca-prstr.pem
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
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-og==
------END CERTIFICATE-----
diff --git a/tests/data_files/enco-cert-utf8str.pem b/tests/data_files/enco-cert-utf8str.pem
deleted file mode 100644
index 7d613d9..0000000
--- a/tests/data_files/enco-cert-utf8str.pem
+++ /dev/null
@@ -1,13 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB8jCCAVugAwIBAgIETZt8+zANBgkqhkiG9w0BAQUFADBCMUAwPgYDVQQDDDdP
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-kEkfhaTgrBIikwlnquoX5UHOdL/iaw==
------END CERTIFICATE-----
diff --git a/tests/data_files/format_gen.pub b/tests/data_files/format_gen.pub
deleted file mode 100644
index 81a7ab3..0000000
--- a/tests/data_files/format_gen.pub
+++ /dev/null
@@ -1,6 +0,0 @@
------BEGIN PUBLIC KEY-----
-MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDA0UszjREl+JklUyevaN8fb0Gp
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-5AWFu5MDP7wlU/AZfQIDAQAB
------END PUBLIC KEY-----
diff --git a/tests/data_files/format_pkcs12.fmt b/tests/data_files/format_pkcs12.fmt
deleted file mode 100644
index 296d599..0000000
--- a/tests/data_files/format_pkcs12.fmt
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/keyUsage.decipherOnly.crt b/tests/data_files/keyUsage.decipherOnly.crt
deleted file mode 100644
index 7c37978..0000000
--- a/tests/data_files/keyUsage.decipherOnly.crt
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICFzCCAYCgAwIBAgIJAJsTzkylb95SMA0GCSqGSIb3DQEBBQUAMD8xCzAJBgNV
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-fLtpo9y79XD00QY=
------END CERTIFICATE-----
diff --git a/tests/data_files/passwd.psk b/tests/data_files/passwd.psk
deleted file mode 100644
index 17fee37..0000000
--- a/tests/data_files/passwd.psk
+++ /dev/null
@@ -1 +0,0 @@
-Client_identity:6162636465666768696a6b6c6d6e6f70
diff --git a/tests/data_files/rsa_pkcs8_1024_public.der b/tests/data_files/rsa_pkcs8_1024_public.der
deleted file mode 100644
index fe42998..0000000
--- a/tests/data_files/rsa_pkcs8_1024_public.der
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/server1-ms.req.sha256 b/tests/data_files/server1-ms.req.sha256
deleted file mode 100644
index b0d9414..0000000
--- a/tests/data_files/server1-ms.req.sha256
+++ /dev/null
@@ -1,16 +0,0 @@
------BEGIN NEW CERTIFICATE REQUEST-----
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------END NEW CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server1-nospace.crt b/tests/data_files/server1-nospace.crt
deleted file mode 100644
index 932c236..0000000
--- a/tests/data_files/server1-nospace.crt
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDhDCCAmygAwIBAgIBHzANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER
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------END CERTIFICATE-----
diff --git a/tests/data_files/server1-v1.crt b/tests/data_files/server1-v1.crt
deleted file mode 100644
index 47f1fff..0000000
--- a/tests/data_files/server1-v1.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDITCCAgkCDFOitscEzU2OvIALwTANBgkqhkiG9w0BAQsFADBQMRwwGgYDVQQD
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-krj+Z18pcrssO+Etv0BOiPjmU9TWWpDMj34ef7U/OH5qJxkSrA==
------END CERTIFICATE-----
diff --git a/tests/data_files/server1.cert_type.crt b/tests/data_files/server1.cert_type.crt
deleted file mode 100644
index fb59ab8..0000000
--- a/tests/data_files/server1.cert_type.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDUjCCAjqgAwIBAgIBATANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
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------END CERTIFICATE-----
diff --git a/tests/data_files/server1.cert_type.crt.openssl.v3_ext b/tests/data_files/server1.cert_type.crt.openssl.v3_ext
deleted file mode 100644
index bd225ff..0000000
--- a/tests/data_files/server1.cert_type.crt.openssl.v3_ext
+++ /dev/null
@@ -1,5 +0,0 @@
-[v3_ext]
-basicConstraints = CA:false
-subjectKeyIdentifier=hash
-authorityKeyIdentifier=keyid
-nsCertType=server
diff --git a/tests/data_files/server1.cert_type_noauthid.crt b/tests/data_files/server1.cert_type_noauthid.crt
deleted file mode 100644
index 0082b14..0000000
--- a/tests/data_files/server1.cert_type_noauthid.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDMTCCAhmgAwIBAgIBATANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
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-b+IvZD0=
------END CERTIFICATE-----
diff --git a/tests/data_files/server1.crt b/tests/data_files/server1.crt
deleted file mode 100644
index dfc92b3..0000000
--- a/tests/data_files/server1.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDPzCCAiegAwIBAgIBATANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
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------END CERTIFICATE-----
diff --git a/tests/data_files/server1.crt.openssl.v3_ext b/tests/data_files/server1.crt.openssl.v3_ext
deleted file mode 100644
index 239d56a..0000000
--- a/tests/data_files/server1.crt.openssl.v3_ext
+++ /dev/null
@@ -1,4 +0,0 @@
-[v3_ext]
-basicConstraints = CA:false
-subjectKeyIdentifier=hash
-authorityKeyIdentifier=keyid
diff --git a/tests/data_files/server1.csr b/tests/data_files/server1.csr
deleted file mode 100644
index 804c4a5..0000000
--- a/tests/data_files/server1.csr
+++ /dev/null
@@ -1,16 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server1.der b/tests/data_files/server1.der
deleted file mode 100644
index fcf45cd..0000000
--- a/tests/data_files/server1.der
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/server1.ext_ku.crt b/tests/data_files/server1.ext_ku.crt
deleted file mode 100644
index 3c4f854..0000000
--- a/tests/data_files/server1.ext_ku.crt
+++ /dev/null
@@ -1,22 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server1.key_usage.crt b/tests/data_files/server1.key_usage.crt
deleted file mode 100644
index b5a2532..0000000
--- a/tests/data_files/server1.key_usage.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDTzCCAjegAwIBAgIBATANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
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------END CERTIFICATE-----
diff --git a/tests/data_files/server1.key_usage.crt.openssl.v3_ext b/tests/data_files/server1.key_usage.crt.openssl.v3_ext
deleted file mode 100644
index e255027..0000000
--- a/tests/data_files/server1.key_usage.crt.openssl.v3_ext
+++ /dev/null
@@ -1,5 +0,0 @@
-[v3_ext]
-basicConstraints = CA:false
-subjectKeyIdentifier=hash
-authorityKeyIdentifier=keyid
-keyUsage=critical, digitalSignature, nonRepudiation, keyEncipherment
diff --git a/tests/data_files/server1.key_usage_noauthid.crt b/tests/data_files/server1.key_usage_noauthid.crt
deleted file mode 100644
index c82a979..0000000
--- a/tests/data_files/server1.key_usage_noauthid.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server1.noauthid.crt b/tests/data_files/server1.noauthid.crt
deleted file mode 100644
index f778ae9..0000000
--- a/tests/data_files/server1.noauthid.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server1.req.cert_type b/tests/data_files/server1.req.cert_type
deleted file mode 100644
index 39ff3fd..0000000
--- a/tests/data_files/server1.req.cert_type
+++ /dev/null
@@ -1,17 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server1.req.cert_type_empty b/tests/data_files/server1.req.cert_type_empty
deleted file mode 100644
index 70fd111..0000000
--- a/tests/data_files/server1.req.cert_type_empty
+++ /dev/null
@@ -1,17 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
-MIICpDCCAYwCAQAwPDELMAkGA1UEBhMCTkwxETAPBgNVBAoMCFBvbGFyU1NMMRow
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server1.req.key_usage b/tests/data_files/server1.req.key_usage
deleted file mode 100644
index 30e4812..0000000
--- a/tests/data_files/server1.req.key_usage
+++ /dev/null
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deleted file mode 100644
index 47e56bf..0000000
--- a/tests/data_files/server1.req.key_usage_empty
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@@ -1,17 +0,0 @@
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deleted file mode 100644
index ebd01f5..0000000
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deleted file mode 100644
index 1558549..0000000
--- a/tests/data_files/server1.req.md4
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------BEGIN CERTIFICATE REQUEST-----
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deleted file mode 100644
index 57714ed..0000000
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deleted file mode 100644
index 578ec7f..0000000
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deleted file mode 100644
index a4f2af4..0000000
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deleted file mode 100644
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deleted file mode 100644
index e85ed30..0000000
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------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server10-badsign.crt b/tests/data_files/server10-badsign.crt
deleted file mode 100644
index eca171f..0000000
--- a/tests/data_files/server10-badsign.crt
+++ /dev/null
@@ -1,10 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server10-bs_int3.pem b/tests/data_files/server10-bs_int3.pem
deleted file mode 100644
index b84cee7..0000000
--- a/tests/data_files/server10-bs_int3.pem
+++ /dev/null
@@ -1,22 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server10.crt b/tests/data_files/server10.crt
deleted file mode 100644
index 96a4040..0000000
--- a/tests/data_files/server10.crt
+++ /dev/null
@@ -1,10 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server10.key b/tests/data_files/server10.key
deleted file mode 100644
index 0088331..0000000
--- a/tests/data_files/server10.key
+++ /dev/null
@@ -1,5 +0,0 @@
------BEGIN EC PRIVATE KEY-----
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------END EC PRIVATE KEY-----
diff --git a/tests/data_files/server10_int3-bs.pem b/tests/data_files/server10_int3-bs.pem
deleted file mode 100644
index a9e0615..0000000
--- a/tests/data_files/server10_int3-bs.pem
+++ /dev/null
@@ -1,22 +0,0 @@
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server10_int3_int-ca2.crt b/tests/data_files/server10_int3_int-ca2.crt
deleted file mode 100644
index 0df2c65..0000000
--- a/tests/data_files/server10_int3_int-ca2.crt
+++ /dev/null
@@ -1,40 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server10_int3_int-ca2_ca.crt b/tests/data_files/server10_int3_int-ca2_ca.crt
deleted file mode 100644
index c25482b..0000000
--- a/tests/data_files/server10_int3_int-ca2_ca.crt
+++ /dev/null
@@ -1,120 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 0 (0x0)
-        Signature Algorithm: sha1WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:00 2011 GMT
-            Not After : Feb 12 14:44:00 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:c0:df:37:fc:17:bb:e0:96:9d:3f:86:de:96:32:
-                    7d:44:a5:16:a0:cd:21:f1:99:d4:ec:ea:cb:7c:18:
-                    58:08:94:a5:ec:9b:c5:8b:df:1a:1e:99:38:99:87:
-                    1e:7b:c0:8d:39:df:38:5d:70:78:07:d3:9e:d9:93:
-                    e8:b9:72:51:c5:ce:a3:30:52:a9:f2:e7:40:70:14:
-                    cb:44:a2:72:0b:c2:e5:40:f9:3e:e5:a6:0e:b3:f9:
-                    ec:4a:63:c0:b8:29:00:74:9c:57:3b:a8:a5:04:90:
-                    71:f1:bd:83:d9:3f:d6:a5:e2:3c:2a:8f:ef:27:60:
-                    c3:c6:9f:cb:ba:ec:60:7d:b7:e6:84:32:be:4f:fb:
-                    58:26:22:03:5b:d4:b4:d5:fb:f5:e3:96:2e:70:c0:
-                    e4:2e:bd:fc:2e:ee:e2:41:55:c0:34:2e:7d:24:72:
-                    69:cb:47:b1:14:40:83:7d:67:f4:86:f6:31:ab:f1:
-                    79:a4:b2:b5:2e:12:f9:84:17:f0:62:6f:27:3e:13:
-                    58:b1:54:0d:21:9a:73:37:a1:30:cf:6f:92:dc:f6:
-                    e9:fc:ac:db:2e:28:d1:7e:02:4b:23:a0:15:f2:38:
-                    65:64:09:ea:0c:6e:8e:1b:17:a0:71:c8:b3:9b:c9:
-                    ab:e9:c3:f2:cf:87:96:8f:80:02:32:9e:99:58:6f:
-                    a2:d5
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:TRUE
-            X509v3 Subject Key Identifier: 
-                B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-                DirName:/C=NL/O=PolarSSL/CN=PolarSSL Test CA
-                serial:00
-
-    Signature Algorithm: sha1WithRSAEncryption
-        b8:fd:54:d8:00:54:90:8b:25:b0:27:dd:95:cd:a2:f7:84:07:
-        1d:87:89:4a:c4:78:11:d8:07:b5:d7:22:50:8e:48:eb:62:7a:
-        32:89:be:63:47:53:ff:b6:be:f1:2e:8c:54:c0:99:3f:a0:b9:
-        37:23:72:5f:0d:46:59:8f:d8:47:cd:97:4c:9f:07:0c:12:62:
-        09:3a:24:e4:36:d9:e9:2c:da:38:d0:73:75:61:d7:c1:6c:26:
-        8b:9b:e0:d5:dc:67:ed:8c:6b:33:d7:74:22:3c:4c:db:b5:8d:
-        2a:ce:2c:0d:08:59:05:09:05:a6:39:9f:b3:67:1b:e2:83:e5:
-        e1:8f:53:f6:67:93:c7:f9:6f:76:44:58:12:e8:3a:d4:97:e7:
-        e9:c0:3e:a8:7a:72:3d:87:53:1f:e5:2c:84:84:e7:9a:9e:7f:
-        66:d9:1f:9b:f5:13:48:b0:4d:14:d1:de:b2:24:d9:78:7d:f5:
-        35:cc:58:19:d1:d2:99:ef:4d:73:f8:1f:89:d4:5a:d0:52:ce:
-        09:f5:b1:46:51:6a:00:8e:3b:cc:6f:63:01:00:99:ed:9d:a6:
-        08:60:cd:32:18:d0:73:e0:58:71:d9:e5:d2:53:d7:8d:d0:ca:
-        e9:5d:2a:0a:0d:5d:55:ec:21:50:17:16:e6:06:4a:cd:5e:de:
-        f7:e0:e9:54
------BEGIN CERTIFICATE-----
-MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
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-pjmfs2cb4oPl4Y9T9meTx/lvdkRYEug61Jfn6cA+qHpyPYdTH+UshITnmp5/Ztkf
-m/UTSLBNFNHesiTZeH31NcxYGdHSme9Nc/gfidRa0FLOCfWxRlFqAI47zG9jAQCZ
-7Z2mCGDNMhjQc+BYcdnl0lPXjdDK6V0qCg1dVewhUBcW5gZKzV7e9+DpVA==
------END CERTIFICATE-----
diff --git a/tests/data_files/server10_int3_spurious_int-ca2.crt b/tests/data_files/server10_int3_spurious_int-ca2.crt
deleted file mode 100644
index c9d6715..0000000
--- a/tests/data_files/server10_int3_spurious_int-ca2.crt
+++ /dev/null
@@ -1,64 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBWjCCAQCgAwIBAgIBSzAKBggqhkjOPQQDAjBKMQswCQYDVQQGEwJVSzERMA8G
-A1UEChMIbWJlZCBUTFMxKDAmBgNVBAMTH21iZWQgVExTIFRlc3QgaW50ZXJtZWRp
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-AzO3pJx7WJAApZuBX1Q=
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
-MIIBtDCCATqgAwIBAgIBTTAKBggqhkjOPQQDAjBLMQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxKTAnBgNVBAMTIFBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
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-2J/utoHyjUtVpQOzdTrbsaMQMA4wDAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAgNo
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-Qh7CK80CMQD7wa1o1a8qyDKBfLN636uKmKGga0E+vYXBeFCy9oARBangGCB0B2vt
-pz590JvGWfM=
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
-MIIEATCCA4egAwIBAgIBDjAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
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-CgYIKoZIzj0EAwIDaAAwZQIxAPyE+u+eP7gRrSFjQicmpYg8jiFUCYEowWY2zuOG
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-Af5cNR8KhzegznL6amRObGGKmX1F
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
-MIIC6TCCAdGgAwIBAgIBDzANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
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-ARkD7DTXrodN1wV7jQJkrUuEwPj9Rhvk+MFRkaw=
------END CERTIFICATE-----
diff --git a/tests/data_files/server1_ca.crt b/tests/data_files/server1_ca.crt
deleted file mode 100644
index 748d944..0000000
--- a/tests/data_files/server1_ca.crt
+++ /dev/null
@@ -1,41 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDPzCCAiegAwIBAgIBATANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server1_csr.opensslconf b/tests/data_files/server1_csr.opensslconf
deleted file mode 100644
index 6e7075e..0000000
--- a/tests/data_files/server1_csr.opensslconf
+++ /dev/null
@@ -1,10 +0,0 @@
-[ req ]
-distinguished_name = req_distinguished_name
-prompt             = no
-# Restrict to non-UTF8 PrintableStrings.
-string_mask        = nombstr
-
-[ req_distinguished_name ]
-C  = NL
-O  = PolarSSL
-CN = PolarSSL Server 1
diff --git a/tests/data_files/server2-badsign.crt b/tests/data_files/server2-badsign.crt
deleted file mode 100644
index 7e32d3b..0000000
--- a/tests/data_files/server2-badsign.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDNzCCAh+gAwIBAgIBAjANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
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-zhuYwjVuX6JHG08=
------END CERTIFICATE-----
diff --git a/tests/data_files/server2-sha256.crt b/tests/data_files/server2-sha256.crt
deleted file mode 100644
index f8a5b8b..0000000
--- a/tests/data_files/server2-sha256.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDNzCCAh+gAwIBAgIBAjANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
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------END CERTIFICATE-----
diff --git a/tests/data_files/server2-v1-chain.crt b/tests/data_files/server2-v1-chain.crt
deleted file mode 100644
index 84bb6b2..0000000
--- a/tests/data_files/server2-v1-chain.crt
+++ /dev/null
@@ -1,38 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server2-v1.crt b/tests/data_files/server2-v1.crt
deleted file mode 100644
index 7ef7968..0000000
--- a/tests/data_files/server2-v1.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server2.crt b/tests/data_files/server2.crt
deleted file mode 100644
index 33393ee..0000000
--- a/tests/data_files/server2.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server2.der b/tests/data_files/server2.der
deleted file mode 100644
index ec03190..0000000
--- a/tests/data_files/server2.der
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/server2.ku-ds.crt b/tests/data_files/server2.ku-ds.crt
deleted file mode 100644
index 3bd07d0..0000000
--- a/tests/data_files/server2.ku-ds.crt
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server2.ku-ds_ke.crt b/tests/data_files/server2.ku-ds_ke.crt
deleted file mode 100644
index ebee7e1..0000000
--- a/tests/data_files/server2.ku-ds_ke.crt
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server2.ku-ka.crt b/tests/data_files/server2.ku-ka.crt
deleted file mode 100644
index 90f7c4a..0000000
--- a/tests/data_files/server2.ku-ka.crt
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server2.ku-ke.crt b/tests/data_files/server2.ku-ke.crt
deleted file mode 100644
index 8daa0c1..0000000
--- a/tests/data_files/server2.ku-ke.crt
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
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-A1UdDwQEAwIFIDANBgkqhkiG9w0BAQUFAAOCAQEAqreLAIuxeLGKbhoEROYRqXxO
-ndaC6uDcpxhgmEW7B2DW6ZtX8155v3ov61MuMas8fEQjD5STDP9qERxNTePnhW3m
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-+73Ndb21EuANUjsRDQ3NPklssJcyJB2v85eekwk1acZUG21no3wdTvjxhVE/Xrdz
-zUP9WkvAVfUrwGjUzG4YHE8wkHO7xKbKixNt+nQmDhe+tHVbztZjVwFJ8010gg==
------END CERTIFICATE-----
diff --git a/tests/data_files/server3.crt b/tests/data_files/server3.crt
deleted file mode 100644
index ed0d696..0000000
--- a/tests/data_files/server3.crt
+++ /dev/null
@@ -1,17 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICojCCAYqgAwIBAgIBDTANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
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-kSb8HtILl4I474QxrFywylyXR/p2znPleRIRgB5HtUp9tLSWkB0bwMlqQlg2EHXu
-CAQ1sXmQ
------END CERTIFICATE-----
diff --git a/tests/data_files/server3.key b/tests/data_files/server3.key
deleted file mode 100644
index fecf44d..0000000
--- a/tests/data_files/server3.key
+++ /dev/null
@@ -1,5 +0,0 @@
------BEGIN EC PRIVATE KEY-----
-MF8CAQEEGItTogpE7AOnjvYuTqm+9OabmsX02XKIAqAKBggqhkjOPQMBAaE0AzIA
-BH0AoQyUhPABS38y67uEVs4O3RXmKKrBdUR7/L2QPB8EC2p5fQcsej6EFasvlTdJ
-/w==
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/server4.crt b/tests/data_files/server4.crt
deleted file mode 100644
index 96b1aa7..0000000
--- a/tests/data_files/server4.crt
+++ /dev/null
@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIC6jCCAnCgAwIBAgIBCDAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
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-3dEpvL2Wimt3keD7AcLpYB2FJ1mVcY1XQUeK1Vfc
------END CERTIFICATE-----
diff --git a/tests/data_files/server4.key b/tests/data_files/server4.key
deleted file mode 100644
index 9e4daee..0000000
--- a/tests/data_files/server4.key
+++ /dev/null
@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEpAIBAAKCAQEAq9eMvlV9hzsP+2u6oSlhxly+VSGe4I0Mly1gMku+BhiPm7EP
-EscFe+cQcuA7kr6Wmzjan6v913igTri21Gh5llS+v7t4GdbfmfQSk8AiT0bC76+D
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-OjUO+JEzqj34/0N+gV3nf9nQqbTexUtBa9SuEQIDAQABAoIBAHnxtYvgCPttG1NU
-yJTTU/I7IEozWJaLIZMqfShT/Z4/0bEvfb3ag/bAKzkKDNx+6Utvlh1XJQTCMiiL
-BhtHpHjc3JwdAgZ8KCMNRB2ba/2L/ouupqrm8hqOjdn2r6xM5Vi9pmegEIMWTJDM
-NSX+nC0oF1Jg69X6KViFc5DOKFMhacSEwLJkv/EqCgdWaBoqMlTtTWKdm34xSN2L
-P5o9kOgihTBNUUnVBUWJiT7C6bBAFwb1rECpvNOk6h+lvG+fSDZKYdwBrAsKspIy
-/aXZD4qaicefGblrHcZv2og/zYkFs4riWNOmglxZyrK/3rFFk0B8mBk1mWQvrK7+
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-fe1RkYMBp9wV0x272vzP4Y5p/fzp5xhvN52OkhQsjHRHewfDaUwSFScCgYEA0Wgi
-kGVK6OxzoMCgiWx/L+y3yrYuHdWANTIIa5RvZk4UQqEFkGYGVP1rpbB/fAa1Yqev
-qXkLZqad2dhJCuBVryGt29CHsbnEQ/QuTwlGmyZj1U8NnJBgNCPTdmGTBIm/7w9S
-ESZ48bUlcqzsZn1Big/A6JX1e5i9b/1jyozNVgcCgYEAnRZc49iQRZjPeGQVQZEL
-u5ph6DrFyMhsTistnv77uzk8Y9y79k8unz6HhFt86GAO7zrqdPo60GxBdBGW+laa
-ONVEwr4SDUJ28jQmEwdSru9TYQav1ryk3N9O9U5POKQcNcewJ2qQUAvcOi6bAVGG
-KMJKT/WB8m0o3ljJyL03cFUCgYBoHFTq42Fd8oj+SCbIjCej5RXvc6nz7Tzjta9Y
-BSFphLIv+ixxAThustv9MYYAXLl7hhEgueyAKaBbOVv/S09uVdlBayi7pLc+bb1E
-UEFJS8nguH/08hbSdWlh9tsIK5BAQ6ayniUNTtmCbRTPU8Ds6i4ntL6qp2KvthQS
-FPTVqwKBgQC8m2sJapMms0/7EeGpUwMO+WNCHeRyujnriWYL8Kms0lmAn8NrQoA5
-wgbx0nZ/VrXtLPGHy915jxDXOU1Yc2gqEf5Qm/GnByUuml1mUSldiPciSJvKzMqP
-LeWnb62HD60t/zwstN20Yzt6mBLocm1PPdPhPweI/EF6pSgvlw5NTw==
------END RSA PRIVATE KEY-----
diff --git a/tests/data_files/server5-badsign.crt b/tests/data_files/server5-badsign.crt
deleted file mode 100644
index 0c65072..0000000
--- a/tests/data_files/server5-badsign.crt
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICHzCCAaWgAwIBAgIBCTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
-MTMwOTI0MTU1MjA0WhcNMjMwOTIyMTU1MjA0WjA0MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG
-CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA
-2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgZ0wgZowCQYDVR0TBAIwADAd
-BgNVHQ4EFgQUUGGlj9QH2deCAQzlZX+MY0anE74wbgYDVR0jBGcwZYAUnW0gJEkB
-PyvLeLUZvH4kydv7NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xh
-clNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAoG
-CCqGSM49BAMCA2gAMGUCMQCaLFzXptui5WQN8LlO3ddh1hMxx6tzgLvT03MTVK2S
-C12r0Lz3ri/moSEpNZWqPjkCMCE2f53GXcYLqyfyJR078c/xNSUU5+Xxl7VZ414V
-fGa5kHvHARBPc8YAIVIqDvHH1A==
------END CERTIFICATE-----
diff --git a/tests/data_files/server5-der0.crt b/tests/data_files/server5-der0.crt
deleted file mode 100644
index 08d8dd3..0000000
--- a/tests/data_files/server5-der0.crt
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/server5-der1a.crt b/tests/data_files/server5-der1a.crt
deleted file mode 100644
index 015017b..0000000
--- a/tests/data_files/server5-der1a.crt
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/server5-der1b.crt b/tests/data_files/server5-der1b.crt
deleted file mode 100644
index 6340d9e..0000000
--- a/tests/data_files/server5-der1b.crt
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/server5-der2.crt b/tests/data_files/server5-der2.crt
deleted file mode 100644
index c6e320a..0000000
--- a/tests/data_files/server5-der2.crt
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/server5-der4.crt b/tests/data_files/server5-der4.crt
deleted file mode 100644
index 4af05cc..0000000
--- a/tests/data_files/server5-der4.crt
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/server5-der8.crt b/tests/data_files/server5-der8.crt
deleted file mode 100644
index 65be7dc..0000000
--- a/tests/data_files/server5-der8.crt
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/server5-der9.crt b/tests/data_files/server5-der9.crt
deleted file mode 100644
index 4947f1f..0000000
--- a/tests/data_files/server5-der9.crt
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/server5-expired.crt b/tests/data_files/server5-expired.crt
deleted file mode 100644
index d726e5c..0000000
--- a/tests/data_files/server5-expired.crt
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICHjCCAaWgAwIBAgIBHjAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
-MDQwMzEwMTIwOTMwWhcNMTQwMzA4MTIwOTMwWjA0MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG
-CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA
-2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgZ0wgZowCQYDVR0TBAIwADAd
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-PyvLeLUZvH4kydv7NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xh
-clNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAoG
-CCqGSM49BAMCA2cAMGQCMCDxvDmhlrEk0r4hqCwvQDxWEoXPbbD1gglfLT3BsGpu
-XHUQ1W2HwB3o/7N5I13BBgIwcmG17zyNIOkYiyExYtPCZCpbofEMpRY5qWG0K6YL
-fN08jSzyFt6kbO4ak0D6tC5Q
------END CERTIFICATE-----
diff --git a/tests/data_files/server5-future.crt b/tests/data_files/server5-future.crt
deleted file mode 100644
index 969c84b..0000000
--- a/tests/data_files/server5-future.crt
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICHjCCAaWgAwIBAgIBHTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
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-A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG
-CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA
-2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgZ0wgZowCQYDVR0TBAIwADAd
-BgNVHQ4EFgQUUGGlj9QH2deCAQzlZX+MY0anE74wbgYDVR0jBGcwZYAUnW0gJEkB
-PyvLeLUZvH4kydv7NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xh
-clNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAoG
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-TLDhA6a/pFDTJVZunFzesgIwfqkBYuvMkiNlS4lWcVyf8L4CZIHCn1yHnOCxu8ix
-uqgLb4na3i94x9urgbZZYfVK
------END CERTIFICATE-----
diff --git a/tests/data_files/server5-selfsigned.crt b/tests/data_files/server5-selfsigned.crt
deleted file mode 100644
index cb55647..0000000
--- a/tests/data_files/server5-selfsigned.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBzTCCAXKgAwIBAgIMU6LLSxJOrYN9qJSyMAoGCCqGSM49BAMCMEcxEzARBgNV
-BAMTCnNlbGZzaWduZWQxEDAOBgNVBAsTB3Rlc3RpbmcxETAPBgNVBAoTCFBvbGFy
-U1NMMQswCQYDVQQGEwJOTDAiGA8yMDE0MDYxOTExMzY0M1oYDzIwMjQwNjE4MTEz
-NjQzWjBHMRMwEQYDVQQDEwpzZWxmc2lnbmVkMRAwDgYDVQQLEwd0ZXN0aW5nMREw
-DwYDVQQKEwhQb2xhclNTTDELMAkGA1UEBhMCTkwwWTATBgcqhkjOPQIBBggqhkjO
-PQMBBwNCAAQ3zFbZdgkeWnI+x1kt/yBu7nz5BpF00K0UtfdoIllikk7lANgjEf/q
-L9I0XV0WvYqIwmt3DVXNiioO+gHItO3/o0AwPjAMBgNVHRMBAf8EAjAAMA8GA1Ud
-DwEB/wQFAwMHgAAwHQYDVR0OBBYEFLZtURgXjmWq8uzV8wHkbFLCNB1bMAoGCCqG
-SM49BAMCA0kAMEYCIQCf/bzFoge0pCOIrtHrABgc1+Cl9kjlsICpduXhdHUMOwIh
-AOJ+nBHfaEGyF4PRJvn/jMDeIaH1zisinVzC2v+JQOWq
------END CERTIFICATE-----
diff --git a/tests/data_files/server5-sha1.crt b/tests/data_files/server5-sha1.crt
deleted file mode 100644
index 73e2d17..0000000
--- a/tests/data_files/server5-sha1.crt
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICHTCCAaSgAwIBAgIBEjAJBgcqhkjOPQQBMD4xCzAJBgNVBAYTAk5MMREwDwYD
-VQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQTAeFw0x
-MzA5MjQxNjIxMjdaFw0yMzA5MjIxNjIxMjdaMDQxCzAJBgNVBAYTAk5MMREwDwYD
-VQQKEwhQb2xhclNTTDESMBAGA1UEAxMJbG9jYWxob3N0MFkwEwYHKoZIzj0CAQYI
-KoZIzj0DAQcDQgAEN8xW2XYJHlpyPsdZLf8gbu58+QaRdNCtFLX3aCJZYpJO5QDY
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-A1UdDgQWBBRQYaWP1AfZ14IBDOVlf4xjRqcTvjBuBgNVHSMEZzBlgBSdbSAkSQE/
-K8t4tRm8fiTJ2/s2fKFCpEAwPjELMAkGA1UEBhMCTkwxETAPBgNVBAoTCFBvbGFy
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-WXEv1AzIeBCv+81DN1Iuu4w=
------END CERTIFICATE-----
diff --git a/tests/data_files/server5-sha224.crt b/tests/data_files/server5-sha224.crt
deleted file mode 100644
index 47b1168..0000000
--- a/tests/data_files/server5-sha224.crt
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICIDCCAaWgAwIBAgIBEzAKBggqhkjOPQQDATA+MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
-MTMwOTI0MTYyMTI3WhcNMjMwOTIyMTYyMTI3WjA0MQswCQYDVQQGEwJOTDERMA8G
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-CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA
-2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgZ0wgZowCQYDVR0TBAIwADAd
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diff --git a/tests/data_files/server5-sha384.crt b/tests/data_files/server5-sha384.crt
deleted file mode 100644
index 5d6a79b..0000000
--- a/tests/data_files/server5-sha384.crt
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/server5-sha512.crt b/tests/data_files/server5-sha512.crt
deleted file mode 100644
index 16112ac..0000000
--- a/tests/data_files/server5-sha512.crt
+++ /dev/null
@@ -1,14 +0,0 @@
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diff --git a/tests/data_files/server5-ss-expired.crt b/tests/data_files/server5-ss-expired.crt
deleted file mode 100644
index 287ce98..0000000
--- a/tests/data_files/server5-ss-expired.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/server5-ss-forgeca.crt b/tests/data_files/server5-ss-forgeca.crt
deleted file mode 100644
index bfd7b70..0000000
--- a/tests/data_files/server5-ss-forgeca.crt
+++ /dev/null
@@ -1,11 +0,0 @@
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diff --git a/tests/data_files/server5.crt b/tests/data_files/server5.crt
deleted file mode 100644
index 4597428..0000000
--- a/tests/data_files/server5.crt
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/server5.eku-cli.crt b/tests/data_files/server5.eku-cli.crt
deleted file mode 100644
index 8aa2e44..0000000
--- a/tests/data_files/server5.eku-cli.crt
+++ /dev/null
@@ -1,13 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server5.eku-cs.crt b/tests/data_files/server5.eku-cs.crt
deleted file mode 100644
index db97b40..0000000
--- a/tests/data_files/server5.eku-cs.crt
+++ /dev/null
@@ -1,13 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server5.eku-cs_any.crt b/tests/data_files/server5.eku-cs_any.crt
deleted file mode 100644
index 8fa8632..0000000
--- a/tests/data_files/server5.eku-cs_any.crt
+++ /dev/null
@@ -1,13 +0,0 @@
------BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/server5.eku-srv.crt b/tests/data_files/server5.eku-srv.crt
deleted file mode 100644
index 64312f6..0000000
--- a/tests/data_files/server5.eku-srv.crt
+++ /dev/null
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------END CERTIFICATE-----
diff --git a/tests/data_files/server5.eku-srv_cli.crt b/tests/data_files/server5.eku-srv_cli.crt
deleted file mode 100644
index 9f58fed..0000000
--- a/tests/data_files/server5.eku-srv_cli.crt
+++ /dev/null
@@ -1,13 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server5.ku-ds.crt b/tests/data_files/server5.ku-ds.crt
deleted file mode 100644
index 58dd071..0000000
--- a/tests/data_files/server5.ku-ds.crt
+++ /dev/null
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------BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/server5.ku-ka.crt b/tests/data_files/server5.ku-ka.crt
deleted file mode 100644
index 2447326..0000000
--- a/tests/data_files/server5.ku-ka.crt
+++ /dev/null
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------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server5.ku-ke.crt b/tests/data_files/server5.ku-ke.crt
deleted file mode 100644
index 41ae5ad..0000000
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+++ /dev/null
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------END CERTIFICATE-----
diff --git a/tests/data_files/server5.req.ku.sha1 b/tests/data_files/server5.req.ku.sha1
deleted file mode 100644
index 3281c94..0000000
--- a/tests/data_files/server5.req.ku.sha1
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server5.req.sha1 b/tests/data_files/server5.req.sha1
deleted file mode 100644
index 1a14a15..0000000
--- a/tests/data_files/server5.req.sha1
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server5.req.sha224 b/tests/data_files/server5.req.sha224
deleted file mode 100644
index 2766834..0000000
--- a/tests/data_files/server5.req.sha224
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server5.req.sha256 b/tests/data_files/server5.req.sha256
deleted file mode 100644
index c59e15f..0000000
--- a/tests/data_files/server5.req.sha256
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server5.req.sha384 b/tests/data_files/server5.req.sha384
deleted file mode 100644
index 87556c6..0000000
--- a/tests/data_files/server5.req.sha384
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server5.req.sha512 b/tests/data_files/server5.req.sha512
deleted file mode 100644
index 607741e..0000000
--- a/tests/data_files/server5.req.sha512
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server6-ss-child.crt b/tests/data_files/server6-ss-child.crt
deleted file mode 100644
index 3c6fd4d..0000000
--- a/tests/data_files/server6-ss-child.crt
+++ /dev/null
@@ -1,13 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server6.crt b/tests/data_files/server6.crt
deleted file mode 100644
index 6df6716..0000000
--- a/tests/data_files/server6.crt
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server6.key b/tests/data_files/server6.key
deleted file mode 100644
index 1311cfa..0000000
--- a/tests/data_files/server6.key
+++ /dev/null
@@ -1,5 +0,0 @@
------BEGIN EC PRIVATE KEY-----
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------END EC PRIVATE KEY-----
diff --git a/tests/data_files/server7-badsign.crt b/tests/data_files/server7-badsign.crt
deleted file mode 100644
index 954b53a..0000000
--- a/tests/data_files/server7-badsign.crt
+++ /dev/null
@@ -1,47 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server7-expired.crt b/tests/data_files/server7-expired.crt
deleted file mode 100644
index a25ce4b..0000000
--- a/tests/data_files/server7-expired.crt
+++ /dev/null
@@ -1,47 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server7-future.crt b/tests/data_files/server7-future.crt
deleted file mode 100644
index eeb596f..0000000
--- a/tests/data_files/server7-future.crt
+++ /dev/null
@@ -1,47 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server7.crt b/tests/data_files/server7.crt
deleted file mode 100644
index ed087ef..0000000
--- a/tests/data_files/server7.crt
+++ /dev/null
@@ -1,23 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server7.key b/tests/data_files/server7.key
deleted file mode 100644
index 0088331..0000000
--- a/tests/data_files/server7.key
+++ /dev/null
@@ -1,5 +0,0 @@
------BEGIN EC PRIVATE KEY-----
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------END EC PRIVATE KEY-----
diff --git a/tests/data_files/server7_all_space.crt b/tests/data_files/server7_all_space.crt
deleted file mode 100644
index a979830..0000000
--- a/tests/data_files/server7_all_space.crt
+++ /dev/null
@@ -1,47 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server7_int-ca-exp.crt b/tests/data_files/server7_int-ca-exp.crt
deleted file mode 100644
index fc00517..0000000
--- a/tests/data_files/server7_int-ca-exp.crt
+++ /dev/null
@@ -1,47 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/server7_int-ca.crt b/tests/data_files/server7_int-ca.crt
deleted file mode 100644
index d3ddc46..0000000
--- a/tests/data_files/server7_int-ca.crt
+++ /dev/null
@@ -1,47 +0,0 @@
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diff --git a/tests/data_files/server7_int-ca_ca2.crt b/tests/data_files/server7_int-ca_ca2.crt
deleted file mode 100644
index c289c0a..0000000
--- a/tests/data_files/server7_int-ca_ca2.crt
+++ /dev/null
@@ -1,62 +0,0 @@
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diff --git a/tests/data_files/server7_pem_space.crt b/tests/data_files/server7_pem_space.crt
deleted file mode 100644
index 0ef0fc7..0000000
--- a/tests/data_files/server7_pem_space.crt
+++ /dev/null
@@ -1,47 +0,0 @@
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diff --git a/tests/data_files/server7_spurious_int-ca.crt b/tests/data_files/server7_spurious_int-ca.crt
deleted file mode 100644
index 632c4fd..0000000
--- a/tests/data_files/server7_spurious_int-ca.crt
+++ /dev/null
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server7_trailing_space.crt b/tests/data_files/server7_trailing_space.crt
deleted file mode 100644
index 6faf8cf..0000000
--- a/tests/data_files/server7_trailing_space.crt
+++ /dev/null
@@ -1,47 +0,0 @@
------BEGIN CERTIFICATE----- 
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------END CERTIFICATE----- 
------BEGIN CERTIFICATE----- 
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------END CERTIFICATE----- 
diff --git a/tests/data_files/server8.crt b/tests/data_files/server8.crt
deleted file mode 100644
index b435b2d..0000000
--- a/tests/data_files/server8.crt
+++ /dev/null
@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server8.key b/tests/data_files/server8.key
deleted file mode 100644
index aa9941e..0000000
--- a/tests/data_files/server8.key
+++ /dev/null
@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
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------END RSA PRIVATE KEY-----
diff --git a/tests/data_files/server8_int-ca2.crt b/tests/data_files/server8_int-ca2.crt
deleted file mode 100644
index 7a8da71..0000000
--- a/tests/data_files/server8_int-ca2.crt
+++ /dev/null
@@ -1,36 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server9-bad-mgfhash.crt b/tests/data_files/server9-bad-mgfhash.crt
deleted file mode 100644
index 34ef69e..0000000
--- a/tests/data_files/server9-bad-mgfhash.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server9-bad-saltlen.crt b/tests/data_files/server9-bad-saltlen.crt
deleted file mode 100644
index f4da883..0000000
--- a/tests/data_files/server9-bad-saltlen.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server9-badsign.crt b/tests/data_files/server9-badsign.crt
deleted file mode 100644
index 9e56541..0000000
--- a/tests/data_files/server9-badsign.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server9-defaults.crt b/tests/data_files/server9-defaults.crt
deleted file mode 100644
index 4ce5c87..0000000
--- a/tests/data_files/server9-defaults.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server9-sha224.crt b/tests/data_files/server9-sha224.crt
deleted file mode 100644
index 1b05f31..0000000
--- a/tests/data_files/server9-sha224.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server9-sha256.crt b/tests/data_files/server9-sha256.crt
deleted file mode 100644
index 7d0aa39..0000000
--- a/tests/data_files/server9-sha256.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server9-sha384.crt b/tests/data_files/server9-sha384.crt
deleted file mode 100644
index aaa63e6..0000000
--- a/tests/data_files/server9-sha384.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server9-sha512.crt b/tests/data_files/server9-sha512.crt
deleted file mode 100644
index a211b92..0000000
--- a/tests/data_files/server9-sha512.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/server9-with-ca.crt b/tests/data_files/server9-with-ca.crt
deleted file mode 100644
index 0478cff..0000000
--- a/tests/data_files/server9-with-ca.crt
+++ /dev/null
@@ -1,99 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDBTCCAeegAwIBAgIBFjATBgkqhkiG9w0BAQowBqIEAgIA6jA7MQswCQYDVQQG
-EwJOTDERMA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3Qg
-Q0EwHhcNMTQwMTIwMTMzODE2WhcNMjQwMTE4MTMzODE2WjA0MQswCQYDVQQGEwJO
-TDERMA8GA1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDCBnzANBgkq
-hkiG9w0BAQEFAAOBjQAwgYkCgYEA3RGKn5m6sGjKKuo7am1Zl+1OyVTkDe7OoH2g
-HqroDsK7E0DbihKOiRMkpcX1+tj1kNfIysvF/pMdr9oSI3NSeUYauqBXK3YWMbOo
-r+c4mwiLY5k6CiXuRdIYWLq5kxrt1FiaYxs3/PcUCJ+FZUnzWTJt0eDobd5S7Wa0
-qQvaQJUCAwEAAaOBkjCBjzAJBgNVHRMEAjAAMB0GA1UdDgQWBBTu88f1HxWlTUeJ
-wdMiY7Lfp869UTBjBgNVHSMEXDBagBS0WuSls97SUva51aaVD+s+vMf9/6E/pD0w
-OzELMAkGA1UEBhMCTkwxETAPBgNVBAoTCFBvbGFyU1NMMRkwFwYDVQQDExBQb2xh
-clNTTCBUZXN0IENBggEAMBMGCSqGSIb3DQEBCjAGogQCAgDqA4IBAQDAog/jXydR
-vDIugTzBXtfVK0CEX8iyQ4cVzQmXWSne8204v943K5D2hktSBkjdQUdcnVvVgLR6
-te50jV89ptN/NofX+fo9fhSRN9vGgQVWzOOFiO0zcThy749pirJu1Kq5OJdthIyW
-Pu0UCz5G0k3kTp0JPevGlsNc8S9Ak1tFuB0IPJjrbfODWHS2LDuO+dB6gpkNTdrj
-88ogYtBsN4D5gsXBRUfobXokUwejBwLrD6XwyQx+0bMwSCxgHEhxvuUkx1vdlXGw
-JG3aF92u8mIxoKSAPaPdqy930mQvmpUWcN5Y1IMbtEGoQCKMYgosFcazJpJcjnX1
-o4Hl/lqjwCEG
------END CERTIFICATE-----
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 0 (0x0)
-        Signature Algorithm: sha1WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:00 2011 GMT
-            Not After : Feb 12 14:44:00 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:c0:df:37:fc:17:bb:e0:96:9d:3f:86:de:96:32:
-                    7d:44:a5:16:a0:cd:21:f1:99:d4:ec:ea:cb:7c:18:
-                    58:08:94:a5:ec:9b:c5:8b:df:1a:1e:99:38:99:87:
-                    1e:7b:c0:8d:39:df:38:5d:70:78:07:d3:9e:d9:93:
-                    e8:b9:72:51:c5:ce:a3:30:52:a9:f2:e7:40:70:14:
-                    cb:44:a2:72:0b:c2:e5:40:f9:3e:e5:a6:0e:b3:f9:
-                    ec:4a:63:c0:b8:29:00:74:9c:57:3b:a8:a5:04:90:
-                    71:f1:bd:83:d9:3f:d6:a5:e2:3c:2a:8f:ef:27:60:
-                    c3:c6:9f:cb:ba:ec:60:7d:b7:e6:84:32:be:4f:fb:
-                    58:26:22:03:5b:d4:b4:d5:fb:f5:e3:96:2e:70:c0:
-                    e4:2e:bd:fc:2e:ee:e2:41:55:c0:34:2e:7d:24:72:
-                    69:cb:47:b1:14:40:83:7d:67:f4:86:f6:31:ab:f1:
-                    79:a4:b2:b5:2e:12:f9:84:17:f0:62:6f:27:3e:13:
-                    58:b1:54:0d:21:9a:73:37:a1:30:cf:6f:92:dc:f6:
-                    e9:fc:ac:db:2e:28:d1:7e:02:4b:23:a0:15:f2:38:
-                    65:64:09:ea:0c:6e:8e:1b:17:a0:71:c8:b3:9b:c9:
-                    ab:e9:c3:f2:cf:87:96:8f:80:02:32:9e:99:58:6f:
-                    a2:d5
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:TRUE
-            X509v3 Subject Key Identifier: 
-                B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-                DirName:/C=NL/O=PolarSSL/CN=PolarSSL Test CA
-                serial:00
-
-    Signature Algorithm: sha1WithRSAEncryption
-        b8:fd:54:d8:00:54:90:8b:25:b0:27:dd:95:cd:a2:f7:84:07:
-        1d:87:89:4a:c4:78:11:d8:07:b5:d7:22:50:8e:48:eb:62:7a:
-        32:89:be:63:47:53:ff:b6:be:f1:2e:8c:54:c0:99:3f:a0:b9:
-        37:23:72:5f:0d:46:59:8f:d8:47:cd:97:4c:9f:07:0c:12:62:
-        09:3a:24:e4:36:d9:e9:2c:da:38:d0:73:75:61:d7:c1:6c:26:
-        8b:9b:e0:d5:dc:67:ed:8c:6b:33:d7:74:22:3c:4c:db:b5:8d:
-        2a:ce:2c:0d:08:59:05:09:05:a6:39:9f:b3:67:1b:e2:83:e5:
-        e1:8f:53:f6:67:93:c7:f9:6f:76:44:58:12:e8:3a:d4:97:e7:
-        e9:c0:3e:a8:7a:72:3d:87:53:1f:e5:2c:84:84:e7:9a:9e:7f:
-        66:d9:1f:9b:f5:13:48:b0:4d:14:d1:de:b2:24:d9:78:7d:f5:
-        35:cc:58:19:d1:d2:99:ef:4d:73:f8:1f:89:d4:5a:d0:52:ce:
-        09:f5:b1:46:51:6a:00:8e:3b:cc:6f:63:01:00:99:ed:9d:a6:
-        08:60:cd:32:18:d0:73:e0:58:71:d9:e5:d2:53:d7:8d:d0:ca:
-        e9:5d:2a:0a:0d:5d:55:ec:21:50:17:16:e6:06:4a:cd:5e:de:
-        f7:e0:e9:54
------BEGIN CERTIFICATE-----
-MIIDhzCCAm+gAwIBAgIBADANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDAwWhcNMjEwMjEyMTQ0NDAwWjA7MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwggEiMA0G
-CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA3zf8F7vglp0/ht6WMn1EpRagzSHx
-mdTs6st8GFgIlKXsm8WL3xoemTiZhx57wI053zhdcHgH057Zk+i5clHFzqMwUqny
-50BwFMtEonILwuVA+T7lpg6z+exKY8C4KQB0nFc7qKUEkHHxvYPZP9al4jwqj+8n
-YMPGn8u67GB9t+aEMr5P+1gmIgNb1LTV+/Xjli5wwOQuvfwu7uJBVcA0Ln0kcmnL
-R7EUQIN9Z/SG9jGr8XmksrUuEvmEF/Bibyc+E1ixVA0hmnM3oTDPb5Lc9un8rNsu
-KNF+AksjoBXyOGVkCeoMbo4bF6BxyLObyavpw/LPh5aPgAIynplYb6LVAgMBAAGj
-gZUwgZIwDAYDVR0TBAUwAwEB/zAdBgNVHQ4EFgQUtFrkpbPe0lL2udWmlQ/rPrzH
-/f8wYwYDVR0jBFwwWoAUtFrkpbPe0lL2udWmlQ/rPrzH/f+hP6Q9MDsxCzAJBgNV
-BAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEZMBcGA1UEAxMQUG9sYXJTU0wgVGVz
-dCBDQYIBADANBgkqhkiG9w0BAQUFAAOCAQEAuP1U2ABUkIslsCfdlc2i94QHHYeJ
-SsR4EdgHtdciUI5I62J6Mom+Y0dT/7a+8S6MVMCZP6C5NyNyXw1GWY/YR82XTJ8H
-DBJiCTok5DbZ6SzaONBzdWHXwWwmi5vg1dxn7YxrM9d0IjxM27WNKs4sDQhZBQkF
-pjmfs2cb4oPl4Y9T9meTx/lvdkRYEug61Jfn6cA+qHpyPYdTH+UshITnmp5/Ztkf
-m/UTSLBNFNHesiTZeH31NcxYGdHSme9Nc/gfidRa0FLOCfWxRlFqAI47zG9jAQCZ
-7Z2mCGDNMhjQc+BYcdnl0lPXjdDK6V0qCg1dVewhUBcW5gZKzV7e9+DpVA==
------END CERTIFICATE-----
diff --git a/tests/data_files/server9.crt b/tests/data_files/server9.crt
deleted file mode 100644
index a6f9fbc..0000000
--- a/tests/data_files/server9.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDBTCCAeegAwIBAgIBFjATBgkqhkiG9w0BAQowBqIEAgIA6jA7MQswCQYDVQQG
-EwJOTDERMA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3Qg
-Q0EwHhcNMTQwMTIwMTMzODE2WhcNMjQwMTE4MTMzODE2WjA0MQswCQYDVQQGEwJO
-TDERMA8GA1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDCBnzANBgkq
-hkiG9w0BAQEFAAOBjQAwgYkCgYEA3RGKn5m6sGjKKuo7am1Zl+1OyVTkDe7OoH2g
-HqroDsK7E0DbihKOiRMkpcX1+tj1kNfIysvF/pMdr9oSI3NSeUYauqBXK3YWMbOo
-r+c4mwiLY5k6CiXuRdIYWLq5kxrt1FiaYxs3/PcUCJ+FZUnzWTJt0eDobd5S7Wa0
-qQvaQJUCAwEAAaOBkjCBjzAJBgNVHRMEAjAAMB0GA1UdDgQWBBTu88f1HxWlTUeJ
-wdMiY7Lfp869UTBjBgNVHSMEXDBagBS0WuSls97SUva51aaVD+s+vMf9/6E/pD0w
-OzELMAkGA1UEBhMCTkwxETAPBgNVBAoTCFBvbGFyU1NMMRkwFwYDVQQDExBQb2xh
-clNTTCBUZXN0IENBggEAMBMGCSqGSIb3DQEBCjAGogQCAgDqA4IBAQDAog/jXydR
-vDIugTzBXtfVK0CEX8iyQ4cVzQmXWSne8204v943K5D2hktSBkjdQUdcnVvVgLR6
-te50jV89ptN/NofX+fo9fhSRN9vGgQVWzOOFiO0zcThy749pirJu1Kq5OJdthIyW
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-88ogYtBsN4D5gsXBRUfobXokUwejBwLrD6XwyQx+0bMwSCxgHEhxvuUkx1vdlXGw
-JG3aF92u8mIxoKSAPaPdqy930mQvmpUWcN5Y1IMbtEGoQCKMYgosFcazJpJcjnX1
-o4Hl/lqjwCEG
------END CERTIFICATE-----
diff --git a/tests/data_files/server9.key b/tests/data_files/server9.key
deleted file mode 100644
index e005864..0000000
--- a/tests/data_files/server9.key
+++ /dev/null
@@ -1,15 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIICXQIBAAKBgQDdEYqfmbqwaMoq6jtqbVmX7U7JVOQN7s6gfaAequgOwrsTQNuK
-Eo6JEySlxfX62PWQ18jKy8X+kx2v2hIjc1J5Rhq6oFcrdhYxs6iv5zibCItjmToK
-Je5F0hhYurmTGu3UWJpjGzf89xQIn4VlSfNZMm3R4Oht3lLtZrSpC9pAlQIDAQAB
-AoGAHFCE2tBL0xB45Go/1e/Pi9//OVZAJ3Cw0mmEuqjVNB7I6zxhYhviWbgz92+V
-g92KBlU9CIx0/ZhGMyHRNO0uYNEZUJyM8zItoo/nmU31+VaHOGgpei04HZrn1Nmw
-QS01FVrn9wzKR/5qeEBmxE7rVMDQo8QLnllC3jXzIVUtX4ECQQD2g9dleWYbqIQe
-Q9paXxzvODhCzNtQwD0PnOKc54Nu4zm3JI45REtunmG8et+Ncms9RycTjNlWPGJT
-62jgaJexAkEA5ZMNv4u9NNRfZprmlNyvjSOf+w7fdKzhcnkHbGkfLnFdc7vq0XFC
-nwORsdjpOvWQUwrV2Cw8Pl4rKa4B4iqUJQJBAMVti6maU3udN8qhXxP3js3LwctG
-E/OVMpH5fMha5jl9w/B4V2tn1d3O/MmdwsKeu2JFRPd0W2+kRr+dDs6DFdECQQC1
-3g9QJRWY2n1RPXlZiJKSDxzXuOqQ9bwMAZE98vE+y5Qq8T2O+li6vAsZhysNCChz
-gOvzuudmyRcMh8r6Lpz5AkAUKK3gYtJFiVH2arRig3JjZJqixgSTolMT1n+HG4uM
-tnBqBiEBVwBxEqaohla/rHR5joZCdcDN8xq0yeTQyLH9
------END RSA PRIVATE KEY-----
diff --git a/tests/data_files/server9.req.sha1 b/tests/data_files/server9.req.sha1
deleted file mode 100644
index b9d0053..0000000
--- a/tests/data_files/server9.req.sha1
+++ /dev/null
@@ -1,11 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
-MIIBojCCAQYCAQAwNDELMAkGA1UEBhMCTkwxETAPBgNVBAoTCFBvbGFyU1NMMRIw
-EAYDVQQDEwlsb2NhbGhvc3QwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAN0R
-ip+ZurBoyirqO2ptWZftTslU5A3uzqB9oB6q6A7CuxNA24oSjokTJKXF9frY9ZDX
-yMrLxf6THa/aEiNzUnlGGrqgVyt2FjGzqK/nOJsIi2OZOgol7kXSGFi6uZMa7dRY
-mmMbN/z3FAifhWVJ81kybdHg6G3eUu1mtKkL2kCVAgMBAAGgKTAnBgkqhkiG9w0B
-CQ4xGjAYMAkGA1UdEwQCMAAwCwYDVR0PBAQDAgXgMBIGCSqGSIb3DQEBCjAFogMC
-AWoDgYEA2n8SOoiJCs+YyH2VXoUVxhutdXGP4+7cECakl2mmVEKhxXDMEG7hEFkB
-mkk4b1kRNOQHKqUq3crfi0OkMcPGkPiLlYLKgT51CgsBhuJaMsdCYo/5POgTZD4u
-FI5gfyO70Xpq9QmrWEqqTdalRG7+UmGa3VEUVyXTDnQZfU1N2QE=
------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server9.req.sha224 b/tests/data_files/server9.req.sha224
deleted file mode 100644
index fe1c797..0000000
--- a/tests/data_files/server9.req.sha224
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
-MIIBzTCCAQYCAQAwNDELMAkGA1UEBhMCTkwxETAPBgNVBAoTCFBvbGFyU1NMMRIw
-EAYDVQQDEwlsb2NhbGhvc3QwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAN0R
-ip+ZurBoyirqO2ptWZftTslU5A3uzqB9oB6q6A7CuxNA24oSjokTJKXF9frY9ZDX
-yMrLxf6THa/aEiNzUnlGGrqgVyt2FjGzqK/nOJsIi2OZOgol7kXSGFi6uZMa7dRY
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-CwYJYIZIAWUDBAIEoRowGAYJKoZIhvcNAQEIMAsGCWCGSAFlAwQCBKIDAgFiA4GB
-AMlYYZKqpDqg5UZZq3NB3QUR9qftY/52/0gPfruw5s2gNtFmG1uyEBJX/oc7C/fU
-lxo74HDraWJyvP7c3MMhOuwr/RfPNQhA2Hgwz9RuJIBhQrJfiZuHsCfiKVofMuMf
-ar/4EKfyoELDdilhg6i+abahGOkqyXsjavFtyDSeCpXH
------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server9.req.sha256 b/tests/data_files/server9.req.sha256
deleted file mode 100644
index 0ef9ef0..0000000
--- a/tests/data_files/server9.req.sha256
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
-MIIBzTCCAQYCAQAwNDELMAkGA1UEBhMCTkwxETAPBgNVBAoTCFBvbGFyU1NMMRIw
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-L/H6snE1dHNPXyCNVFTJIll3bRlVMRsfZpDhmz8/ImJ4
------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server9.req.sha384 b/tests/data_files/server9.req.sha384
deleted file mode 100644
index 0103450..0000000
--- a/tests/data_files/server9.req.sha384
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
-MIIBzTCCAQYCAQAwNDELMAkGA1UEBhMCTkwxETAPBgNVBAoTCFBvbGFyU1NMMRIw
-EAYDVQQDEwlsb2NhbGhvc3QwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAN0R
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-ANfZGK6nE/CP9PuALFzbA/mvOnYlI60pMowscRfCYpvR25iQJVhAJfYVXADRN3qd
-NAiFWNVcjFMIkRlq7qifBN97VHGeYoWIuw9gYEb3OqDGzOsYP0KIgMNt8/A4qCkj
-5MzolOYyT+N+QFGV0pdCNpX7QppfNdFyFAmWXa171RzG
------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server9.req.sha512 b/tests/data_files/server9.req.sha512
deleted file mode 100644
index 676b5c9..0000000
--- a/tests/data_files/server9.req.sha512
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
-MIIBzTCCAQYCAQAwNDELMAkGA1UEBhMCTkwxETAPBgNVBAoTCFBvbGFyU1NMMRIw
-EAYDVQQDEwlsb2NhbGhvc3QwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAN0R
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/test-ca-alt-good.crt b/tests/data_files/test-ca-alt-good.crt
deleted file mode 100644
index f9beba0..0000000
--- a/tests/data_files/test-ca-alt-good.crt
+++ /dev/null
@@ -1,41 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca-alt.crt b/tests/data_files/test-ca-alt.crt
deleted file mode 100644
index 7399e43..0000000
--- a/tests/data_files/test-ca-alt.crt
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca-alt.csr b/tests/data_files/test-ca-alt.csr
deleted file mode 100644
index 898c9e6..0000000
--- a/tests/data_files/test-ca-alt.csr
+++ /dev/null
@@ -1,16 +0,0 @@
------BEGIN CERTIFICATE REQUEST-----
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------END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/test-ca-alt.key b/tests/data_files/test-ca-alt.key
deleted file mode 100644
index 84b8fab..0000000
--- a/tests/data_files/test-ca-alt.key
+++ /dev/null
@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
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------END RSA PRIVATE KEY-----
diff --git a/tests/data_files/test-ca-good-alt.crt b/tests/data_files/test-ca-good-alt.crt
deleted file mode 100644
index f360a76..0000000
--- a/tests/data_files/test-ca-good-alt.crt
+++ /dev/null
@@ -1,41 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca-sha1.crt b/tests/data_files/test-ca-sha1.crt
deleted file mode 100644
index e8b537c..0000000
--- a/tests/data_files/test-ca-sha1.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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-NWqiX9GyusBZjezaCaHabjDLU0qQ
------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca-sha256.crt b/tests/data_files/test-ca-sha256.crt
deleted file mode 100644
index 9b08fe2..0000000
--- a/tests/data_files/test-ca-sha256.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDQTCCAimgAwIBAgIBAzANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
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-8F1X2ivb60ynHV6baMLPI4Kf1k4MONtLSf/++1qh0Gdycd3A8IDAfy0YnC1F3OPK
-vWO/cZGitKoTbEpP4y4Rng3sFCDndRCWIRIDOEEW/H3lCcfL7sOQojdLl85ajFkh
-YvcDqjmnTcspUnuq9Y00C7porXJthZwz1S18qVjcFNk0zEhVMUbupSrdXVmKtOJW
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-5pE6Sam4qFsCNFJNBV9FRf3ZBMFi
------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca-v1.crt b/tests/data_files/test-ca-v1.crt
deleted file mode 100644
index e5a3b1c..0000000
--- a/tests/data_files/test-ca-v1.crt
+++ /dev/null
@@ -1,19 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDIzCCAgsCDFOito4FQA5VXJOV5TANBgkqhkiG9w0BAQsFADBQMRwwGgYDVQQD
-ExNQb2xhclNTTCBUZXN0IENBIHYxMRAwDgYDVQQLEwd0ZXN0aW5nMREwDwYDVQQK
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-/KzbLijRfgJLI6AV8jhlZAnqDG6OGxegccizm8mr6cPyz4eWj4ACMp6ZWG+i1QID
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-uvjYkOcZqhprDiMfhxBB7pxbfiviEANTbgSfCtZewSNz2RUJ9ocy
------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca.crt b/tests/data_files/test-ca.crt
deleted file mode 100644
index e8b537c..0000000
--- a/tests/data_files/test-ca.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDQTCCAimgAwIBAgIBAzANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
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-MB8GA1UdIwQYMBaAFLRa5KWz3tJS9rnVppUP6z68x/3/MA0GCSqGSIb3DQEBBQUA
-A4IBAQABE3OEPfEd/bcJW5ZdU3/VgPNS4tMzh8gnJP/V2FcvFtGylMpQq6YnEBYI
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-czkaPKgjqo1No3Uq0Xaz10rcxyTUPrf5wNVRZ2V0KvllvAAVSzbI4mpdUXztjhST
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-NWqiX9GyusBZjezaCaHabjDLU0qQ
------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca.der b/tests/data_files/test-ca.der
deleted file mode 100644
index 039fb9e..0000000
--- a/tests/data_files/test-ca.der
+++ /dev/null
Binary files differ
diff --git a/tests/data_files/test-ca.opensslconf b/tests/data_files/test-ca.opensslconf
deleted file mode 100644
index f66b39e..0000000
--- a/tests/data_files/test-ca.opensslconf
+++ /dev/null
@@ -1,28 +0,0 @@
-[req]
-x509_extensions = v3_ca
-distinguished_name = req_dn
-
-[req_dn]
-countryName = NL
-organizationalUnitName = PolarSSL
-commonName = PolarSSL Test CA
-
-[v3_ca]
-subjectKeyIdentifier=hash
-authorityKeyIdentifier=keyid:always,issuer:always
-basicConstraints = CA:true
-
-[noext_ca]
-basicConstraints = CA:true
-
-[test_ca]
-database = /dev/null
-
-[crl_ext_idp]
-issuingDistributionPoint=critical, @idpdata
-
-[crl_ext_idp_nc]
-issuingDistributionPoint=@idpdata
-
-[idpdata]
-fullname=URI:http://pki.example.com/
diff --git a/tests/data_files/test-ca.server1.opensslconf b/tests/data_files/test-ca.server1.opensslconf
deleted file mode 100644
index 4a5072e..0000000
--- a/tests/data_files/test-ca.server1.opensslconf
+++ /dev/null
@@ -1,18 +0,0 @@
- [ ca ]
- default_ca             = test-ca
- 
- [ test-ca ]
- certificate            = test-ca.crt
- private_key            = test-ca.key
- serial                 = test-ca.server1.serial
- default_md             = sha1
- default_startdate      = 110212144406Z
- default_enddate        = 210212144406Z
- new_certs_dir          = ./
- database               = ./test-ca.server1.db
- policy                 = policy_match
-
- [policy_match]
- countryName            = supplied
- organizationName       = supplied
- commonName             = supplied
diff --git a/tests/data_files/test-ca2-expired.crt b/tests/data_files/test-ca2-expired.crt
deleted file mode 100644
index 22e4797..0000000
--- a/tests/data_files/test-ca2-expired.crt
+++ /dev/null
@@ -1,13 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIB/TCCAYCgAwIBAgIBATAMBggqhkjOPQQDAgUAMD4xCzAJBgNVBAYTAk5MMREw
-DwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQTAe
-Fw0wMzA5MjQxNTQ5NDhaFw0xMzA5MjQxNTQ5NDhaMD4xCzAJBgNVBAYTAk5MMREw
-DwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQTB2
-MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBuww5XUzM5
-WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiyaY7zQa0p
-w7RfdadHb9UZKVVpmlM7ILRmFmAzHqNQME4wDAYDVR0TBAUwAwEB/zAdBgNVHQ4E
-FgQUnW0gJEkBPyvLeLUZvH4kydv7NnwwHwYDVR0jBBgwFoAUnW0gJEkBPyvLeLUZ
-vH4kydv7NnwwDAYIKoZIzj0EAwIFAANpADBmAjEAvQ/49lXXrLYdOIGtTaYWjpZP
-tRBXQiGPMzUvmKBk7gM7bF4iFPsdJikyXHmuwv3RAjEA8vtUX8fAAB3fbh5dEXRm
-l7tz0Sw/RW6AHFtaIauGkhHqeKIaKIi6WSgHu6x97uyg
------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca2.crt b/tests/data_files/test-ca2.crt
deleted file mode 100644
index d41a420..0000000
--- a/tests/data_files/test-ca2.crt
+++ /dev/null
@@ -1,15 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICUjCCAdegAwIBAgIJAMFD4n5iQ8zoMAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTAeFw0xMzA5MjQxNTQ5NDhaFw0yMzA5MjIxNTQ5NDhaMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTB2MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBu
-ww5XUzM5WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiy
-aY7zQa0pw7RfdadHb9UZKVVpmlM7ILRmFmAzHqOBoDCBnTAdBgNVHQ4EFgQUnW0g
-JEkBPyvLeLUZvH4kydv7NnwwbgYDVR0jBGcwZYAUnW0gJEkBPyvLeLUZvH4kydv7
-NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UE
-AxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAwGA1UdEwQFMAMBAf8w
-CgYIKoZIzj0EAwIDaQAwZgIxAMO0YnNWKJUAfXgSJtJxexn4ipg+kv4znuR50v56
-t4d0PCu412mUC6Nnd7izvtE2MgIxAP1nnJQjZ8BWukszFQDG48wxCCyci9qpdSMv
-uCjn8pwUOkABXK8Mss90fzCfCEOtIA==
------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca2.key b/tests/data_files/test-ca2.key
deleted file mode 100644
index ccbba3c..0000000
--- a/tests/data_files/test-ca2.key
+++ /dev/null
@@ -1,6 +0,0 @@
------BEGIN EC PRIVATE KEY-----
-MIGkAgEBBDCD2RUOoHHwVxAzozi4hsGmEV1ttAPhKXZF14dvI6tEIOpke4WxdueF
-lap01tGkXuqgBwYFK4EEACKhZANiAATD2is0QTdYL4dW/vyJuilDS07gbsMOV1Mz
-OVjUUrSRlTkLI99fFyRiSPwalSnOLC2HwohSgK/Waqsh3bjTHG5YuMrosmmO80Gt
-KcO0X3WnR2/VGSlVaZpTOyC0ZhZgMx4=
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/test-ca2.ku-crl.crt b/tests/data_files/test-ca2.ku-crl.crt
deleted file mode 100644
index 4fb4083..0000000
--- a/tests/data_files/test-ca2.ku-crl.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBzDCCAVOgAwIBAgIJAP6mZLzh0IPSMAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTAeFw0xNDA0MDkxMTIzMzhaFw0yNDA0MDYxMTIzMzhaMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTB2MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBu
-ww5XUzM5WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiy
-aY7zQa0pw7RfdadHb9UZKVVpmlM7ILRmFmAzHqMdMBswDAYDVR0TBAUwAwEB/zAL
-BgNVHQ8EBAMCAQIwCgYIKoZIzj0EAwIDZwAwZAIwZOCKY0EHXYzI4cQsFnfOrxm1
-ufvNeZ4ZcSZWrkTBazW2OBCuCP9SLznec3SFOUvvAjAKe/qycfxkHivjieCEG1Kt
-m2D4QKSJELUhTHr4zdkeqbzgui0y3iouaoyWsKvetNg=
------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca2.ku-crt.crt b/tests/data_files/test-ca2.ku-crt.crt
deleted file mode 100644
index edacc64..0000000
--- a/tests/data_files/test-ca2.ku-crt.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBzTCCAVOgAwIBAgIJAODh6PAeD9/vMAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTAeFw0xNDA0MDkxMTIzNTRaFw0yNDA0MDYxMTIzNTRaMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTB2MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBu
-ww5XUzM5WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiy
-aY7zQa0pw7RfdadHb9UZKVVpmlM7ILRmFmAzHqMdMBswDAYDVR0TBAUwAwEB/zAL
-BgNVHQ8EBAMCAgQwCgYIKoZIzj0EAwIDaAAwZQIwGGlbynd1jU3WkUx6Irhk9Lob
-z2B+1eIO6+eu3En8B3rh8Ipfxo0e0hpfaRFYP1MUAjEAjxxBchRWJAzZ6/47Wg/7
-UoasRINgP5B/uJhTnftS1bqyuWHastb4LW5/YLOvPbMQ
------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca2.ku-crt_crl.crt b/tests/data_files/test-ca2.ku-crt_crl.crt
deleted file mode 100644
index ac74e40..0000000
--- a/tests/data_files/test-ca2.ku-crt_crl.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBzDCCAVOgAwIBAgIJAPejOupCJS65MAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTAeFw0xNDA0MDkxMTIyMjVaFw0yNDA0MDYxMTIyMjVaMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTB2MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBu
-ww5XUzM5WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiy
-aY7zQa0pw7RfdadHb9UZKVVpmlM7ILRmFmAzHqMdMBswDAYDVR0TBAUwAwEB/zAL
-BgNVHQ8EBAMCAQYwCgYIKoZIzj0EAwIDZwAwZAIwMKLVXB4YBQ0Ha4dEvFPcJtau
-TS5Vd4UqG3xQ10YcJogweuqaGHSFgdnEUfoX+4p5AjApMnYXFfUjSmlyfJmTaswO
-gaR5sUnnw33NA9j1ercem3asCYz6a8T0zo8/rR33XVU=
------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca2.ku-ds.crt b/tests/data_files/test-ca2.ku-ds.crt
deleted file mode 100644
index c28e17b..0000000
--- a/tests/data_files/test-ca2.ku-ds.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBzDCCAVOgAwIBAgIJAPOkPR3wsvm5MAoGCCqGSM49BAMCMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTAeFw0xNDA0MDkxMTI0MTNaFw0yNDA0MDYxMTI0MTNaMD4xCzAJBgNVBAYT
-Ak5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBF
-QyBDQTB2MBAGByqGSM49AgEGBSuBBAAiA2IABMPaKzRBN1gvh1b+/Im6KUNLTuBu
-ww5XUzM5WNRStJGVOQsj318XJGJI/BqVKc4sLYfCiFKAr9ZqqyHduNMcbli4yuiy
-aY7zQa0pw7RfdadHb9UZKVVpmlM7ILRmFmAzHqMdMBswDAYDVR0TBAUwAwEB/zAL
-BgNVHQ8EBAMCB4AwCgYIKoZIzj0EAwIDZwAwZAIwGRCmU/rWNjW13g8ITuq3pMXb
-jgwTFJHVlbMDiFJwUrRvytPV9doJOfzJ8nAQ0cZ1AjAbJ8QAV2e+DmYZpWc/p6Ug
-nQdac59ev+lH+ju6wET3jNDjUthUPrdgqa54+UWQ5r4=
------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca2_cat-future-invalid.crt b/tests/data_files/test-ca2_cat-future-invalid.crt
deleted file mode 100644
index b1cfbf0..0000000
--- a/tests/data_files/test-ca2_cat-future-invalid.crt
+++ /dev/null
@@ -1,27 +0,0 @@
------BEGIN CERTIFICATE-----
-MIICIDCCAaWgAwIBAgIBCjAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
-MTMwOTI0MTU1MjA0WhcNMjMwOTIyMTU1MjA0WjA0MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG
-CCqGSM49AwEHA0IABIFZMXZJJPoVraugMW4O7TMR+pElVcGwwZwDcj6Yui2kcjeJ
-H0M3jR+OOtjwV+gvT8kApPfbcw+yxgSU0UA7OOOjgZ0wgZowCQYDVR0TBAIwADAd
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deleted file mode 100644
index 776e725..0000000
--- a/tests/data_files/test-ca2_cat-future-present.crt
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deleted file mode 100644
index febad74..0000000
--- a/tests/data_files/test-ca2_cat-past-invalid.crt
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deleted file mode 100644
index bc1ba9a..0000000
--- a/tests/data_files/test-ca2_cat-past-present.crt
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diff --git a/tests/data_files/test-ca2_cat-present-future.crt b/tests/data_files/test-ca2_cat-present-future.crt
deleted file mode 100644
index d62ed09..0000000
--- a/tests/data_files/test-ca2_cat-present-future.crt
+++ /dev/null
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deleted file mode 100644
index a321d5d..0000000
--- a/tests/data_files/test-ca2_cat-present-past.crt
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deleted file mode 100644
index d989e3b..0000000
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------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca_cat21.crt b/tests/data_files/test-ca_cat21.crt
deleted file mode 100644
index 97b4d2c..0000000
--- a/tests/data_files/test-ca_cat21.crt
+++ /dev/null
@@ -1,35 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca_printable.crt b/tests/data_files/test-ca_printable.crt
deleted file mode 100644
index d16da09..0000000
--- a/tests/data_files/test-ca_printable.crt
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca_uppercase.crt b/tests/data_files/test-ca_uppercase.crt
deleted file mode 100644
index e8b537c..0000000
--- a/tests/data_files/test-ca_uppercase.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/test-ca_utf8.crt b/tests/data_files/test-ca_utf8.crt
deleted file mode 100644
index e8b537c..0000000
--- a/tests/data_files/test-ca_utf8.crt
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/test-int-ca-exp.crt b/tests/data_files/test-int-ca-exp.crt
deleted file mode 100644
index c549654..0000000
--- a/tests/data_files/test-int-ca-exp.crt
+++ /dev/null
@@ -1,24 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/test-int-ca.crt b/tests/data_files/test-int-ca.crt
deleted file mode 100644
index cbe99e0..0000000
--- a/tests/data_files/test-int-ca.crt
+++ /dev/null
@@ -1,24 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/tests/data_files/test-int-ca.key b/tests/data_files/test-int-ca.key
deleted file mode 100644
index 4fd62f3..0000000
--- a/tests/data_files/test-int-ca.key
+++ /dev/null
@@ -1,51 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
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-YhMbfnfFyo4m707ebcflPbBEN2dgupdQ66cvfCJB0QJt9upafY0lpdV1qUkCAwEA
-AQKCAgEAgyuxzuSJrA8SYLptIoP+e7YiUqCOfy1Z9q3paLeUAhRmWilrxK9KuQcb
-BOhWXCDXvdMpykXIdS5WVyZYCQtuyEeK8haNIHyKII2ZSB1A/3EJckysWB93hnFZ
-gFHzNALOG64+iY34a+Pukc6NmCulGBcjjAWR2KOg9vyRsiRr2m1TkZHFpW9lJMLZ
-mdkklRDeWhkgEiPpKv6QzMFfkzL9mregE3VgEjQfeFNaZlS2HWddhB5z4i+yTfIw
-F1/VXqVg2y8dcP4VrV5PET8NBGPzInkj0lk1NeveE2Cl2DlUq4BMyWvUFkQhAL8B
-Zd4GzmL9nimZ6Qb8dVWYC/YTahoIL3+YUCZAGIeczAo6dryheUsj1w3pSErOIY9U
-dGSyq9I9XYXqcRNeyfkoNVOZ7ugqk4DvMyv64tt+NIIy9SZGcHuWo3GL0FdKiR5c
-Xbn18tD+Wwrka0O1ntvzX1qkwJcpvu5+xNVbobkM4DiluoivOq+29CGANtG2Et7S
-m6KCUwSElKsvpI4dNW4nWcbdj8i8gcLiKjqRu9n2BdkvAHaMhVbl9xnp9sveGLcR
-iFg6mDsCQuVEH8bGPIMIav/3VUjy1wbMAA54PsqKM0aTA+DHnleXchVAhMm9eHD8
-yrV8eb8/bcCbWvhDDi80kuRIaDSsYTwMWpzjz6MU9v8OuFGZZaECggEBANL44VQ7
-7tok5XeJJgnRV/PGNlHKksctPMj+ye8iSDrRvHVlHHqvZ26MZJPgXwHCO/NVIWv6
-hfCYlfmP/63fZ1WJqDUDxHOgjIbPtOIKTsJi3PbbODVrsycZ3y5OjpbjXKG97cKM
-6RX6zbnjtGKPfbUJx+kuAOxmkFLiLJGNlLqzaJafkgWjUAV/nT6Qm2663msfZ/Md
-7uDFDNOTbPS74ki5JTjlj8xmxAPcnxjNJ2ijDQ7eiCAm6JozJYy9PYixmuScFF2x
-D2N6E9/JWUcYezybUgOLzbwzvJkCRJoBXj09F8cb3m6ZQ04n2peQg/0bn6HUVovF
-opZJW9uZTRmFae0CggEBAMYveBnYRXyWqENf8PZ8xlqiOvJBARaIYQOPy1t4LeOv
-t4ssvkSJPEG0tP2IT6ptecNN9CVRdPJn7tsgvjgPvqgymLlaw8DheFS3EK4sFd0a
-SIwrYcXY8fyAFuGbbcx2JTfmxwLGYXeWG4MDkcYctUhXiObMb0YI2eXlTu4JXqJH
-q1myl7pi3gux7JcFjr0ANh9mDOYXzL52WqZObaVUUNn8p/aNWpati9Z9PL2uJNxY
-myZbTqWGTpZ8XlZnZYg8bHVJGoc7/seSDEnSreGQtXl6MrnsN9bDU6UhufI0iAiH
-fCeELpxjBpvZi2TzYnltX+21f3oUXurXT4eYPJm6YU0CggEBAIrJUSphtvJovU/S
-uGRTBEIIzekmk0JWHxu2iU84RT30hb7QwlhvFWLjFrM1MirtBRVBlpf7Gau6JUck
-lLVkNw1NXotprA3Iu0lgUIU29LLp6KS4eBSkghmh6nEDGshmT6TTVhrbKebctAOq
-qRsBfFfhVFKwgckCe8Uapukls4bSyWX1GVF+KwFC/0WOScIhSno8Ed0cfu38k0CI
-RnAFPYpLyhHQ6rUzkZVcyIi/RUKPqOJ0QCaukewG45ffUiCffd8QUlGETjRJtdNN
-GN8tWrz3DI/qo3BAtLwPguOxLLaqfv7r9Xradi1vCF0Wo82ZI32JO1n9rMSjA7vF
-8LNuUc0CggEAedBPh8Mw4qVPgyoDV93VpXu1s5VU796fkqrdmblCq4Ij1L2JrWKU
-0OYboQIZxW1IvEy71fw9X4mWfMWhZZ/31jZTPQqW64UqixeCfyvFvIMdOFqp3Au+
-oS6x4bXBRT0RH00P4ZrB6dkvy9Vz0ktu+aokEYhylJ94HyBU5WaI7kITBi0JqZx/
-Urzn6OOXmn/4xE/becoDJMZmbXYjWs16bKIpMxgrKBY/r3SG0yeorG8h3e+dZYwp
-3cFP0tf2xkgteeGXFqw/q7cPKoj+K3jgsmvzpeeVYsHoNcWHH2I+gs+T9k3+wEz1
-kPGkBka6rlwV7Gv0kLrYpIv27CcciHjQuQKCAQActQM3DTC3pzEwwPeYMnSXL9/s
-uDqbj3MV6H8fxPIGJWfpDst7nWXhT81uKG6fYmeg5Z6nJXfP0dUF5TpW1zk6VGwn
-t/ch6U7HYpseZsywdZPVIo/upgkowXSl6mfqyxzGngXuORh4zhRpcn4GTwzHG2Te
-xNqMEb/i/IWnvtfvyfhEBewJcMr9Npwrg615pCiZ8y3cjvJf/gl0cGZ5LIuWBQB5
-F16JxF3mm1XCukTXZO90vg3Y1JxeB+YYyF+1aQL+DgvhGZNRrGrBT/QuXQpiMCMf
-VM9oZVrI7cYVNnPBEoHVcyP21NQ5AWoFTaSpMJiHZ4FBie0BGO6IkzMcG23r
------END RSA PRIVATE KEY-----
diff --git a/tests/data_files/test-int-ca2.crt b/tests/data_files/test-int-ca2.crt
deleted file mode 100644
index 9ce44c2..0000000
--- a/tests/data_files/test-int-ca2.crt
+++ /dev/null
@@ -1,18 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIC6TCCAdGgAwIBAgIBDzANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTMwOTI0MTYwODQyWhcNMjMwOTIyMTYwODQyWjBLMQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxKTAnBgNVBAMTIFBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
-YXRlIEVDIENBMHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE8Oih3fX5SLeN1dmFncQl
-WMw9+Y6sXblhlrXBxhXxjwdwpCHENn+foUVdrqYVYa7Suv3QVeO6nJ19H3QNixW8
-ik1P+hxsbaq8bta78vAyHmC4EmXQLg1w7oxb9Q82qX1Yo4GVMIGSMB0GA1UdDgQW
-BBQPib1jQevLXhco/2gwPcGI0JxYOTBjBgNVHSMEXDBagBS0WuSls97SUva51aaV
-D+s+vMf9/6E/pD0wOzELMAkGA1UEBhMCTkwxETAPBgNVBAoTCFBvbGFyU1NMMRkw
-FwYDVQQDExBQb2xhclNTTCBUZXN0IENBggEAMAwGA1UdEwQFMAMBAf8wDQYJKoZI
-hvcNAQELBQADggEBAAjeaTUaCBiXT1CYLVr6UFSeRNZBrDPnj6PwqUQTvgB5I5n6
-yXqoE4RYDaEL0Lg24juFxI26itBuypto6vscgGq77cfrP/avSdxU+xeZ4bCWvh3M
-ddj9lmko2U8I8GhBcHpSuIiTvgKDB8eKkjeq3AsLGchHDvip8pB3IhcNfL7W94Zf
-7/lH9VQiE3/px7amD32cidoPvWLA9U3f1FsPmJESUz0wwNfINpDjmPr8dGbkCN+M
-CFhxo6sCfK8KLYG4nYX8FwxVR86kpSrO9e84AX0YYbdzxprbc2XOaebJ8+BDmzut
-ARkD7DTXrodN1wV7jQJkrUuEwPj9Rhvk+MFRkaw=
------END CERTIFICATE-----
diff --git a/tests/data_files/test-int-ca2.key b/tests/data_files/test-int-ca2.key
deleted file mode 100644
index 9df5b7a..0000000
--- a/tests/data_files/test-int-ca2.key
+++ /dev/null
@@ -1,6 +0,0 @@
------BEGIN EC PRIVATE KEY-----
-MIGkAgEBBDAtxOHUV4be1MdH1frBHzxITCyUSxrVjJN8QTvTVk558ka0a3zhd4Pb
-ekWt7wBPXQegBwYFK4EEACKhZANiAATw6KHd9flIt43V2YWdxCVYzD35jqxduWGW
-tcHGFfGPB3CkIcQ2f5+hRV2uphVhrtK6/dBV47qcnX0fdA2LFbyKTU/6HGxtqrxu
-1rvy8DIeYLgSZdAuDXDujFv1DzapfVg=
------END EC PRIVATE KEY-----
diff --git a/tests/data_files/test-int-ca3-badsign.crt b/tests/data_files/test-int-ca3-badsign.crt
deleted file mode 100644
index 2087056..0000000
--- a/tests/data_files/test-int-ca3-badsign.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBtDCCATqgAwIBAgIBTTAKBggqhkjOPQQDAjBLMQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxKTAnBgNVBAMTIFBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
-YXRlIEVDIENBMB4XDTE1MDkwMTE0MDg0M1oXDTI1MDgyOTE0MDg0M1owSjELMAkG
-A1UEBhMCVUsxETAPBgNVBAoTCG1iZWQgVExTMSgwJgYDVQQDEx9tYmVkIFRMUyBU
-ZXN0IGludGVybWVkaWF0ZSBDQSAzMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE
-732fWHLNPMPsP1U1ibXvb55erlEVMlpXBGsj+KYwVqU1XCmW9Z9hhP7X/5js/DX9
-2J/utoHyjUtVpQOzdTrbsaMQMA4wDAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAgNo
-ADBlAjAJRxbGRas3NBmk9MnGWXg7PT1xnRELHRWWIvfLdVQt06l1/xFg3ZuPdQdt
-Qh7CK80CMQD7wa1o1a8qyDKBfLN636uKmKGga0E+vYXBeFCy9oARBangGCB0B2vt
-pz590JvGWf0=
------END CERTIFICATE-----
diff --git a/tests/data_files/test-int-ca3.crt b/tests/data_files/test-int-ca3.crt
deleted file mode 100644
index 7e724b2..0000000
--- a/tests/data_files/test-int-ca3.crt
+++ /dev/null
@@ -1,12 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIBtDCCATqgAwIBAgIBTTAKBggqhkjOPQQDAjBLMQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxKTAnBgNVBAMTIFBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
-YXRlIEVDIENBMB4XDTE1MDkwMTE0MDg0M1oXDTI1MDgyOTE0MDg0M1owSjELMAkG
-A1UEBhMCVUsxETAPBgNVBAoTCG1iZWQgVExTMSgwJgYDVQQDEx9tYmVkIFRMUyBU
-ZXN0IGludGVybWVkaWF0ZSBDQSAzMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE
-732fWHLNPMPsP1U1ibXvb55erlEVMlpXBGsj+KYwVqU1XCmW9Z9hhP7X/5js/DX9
-2J/utoHyjUtVpQOzdTrbsaMQMA4wDAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAgNo
-ADBlAjAJRxbGRas3NBmk9MnGWXg7PT1xnRELHRWWIvfLdVQt06l1/xFg3ZuPdQdt
-Qh7CK80CMQD7wa1o1a8qyDKBfLN636uKmKGga0E+vYXBeFCy9oARBangGCB0B2vt
-pz590JvGWfM=
------END CERTIFICATE-----
diff --git a/tests/data_files/test-int-ca3.key b/tests/data_files/test-int-ca3.key
deleted file mode 100644
index 1bcc711..0000000
--- a/tests/data_files/test-int-ca3.key
+++ /dev/null
@@ -1,8 +0,0 @@
------BEGIN EC PARAMETERS-----
-BggqhkjOPQMBBw==
------END EC PARAMETERS-----
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIC9zTt8jgjBlbq+qCsGj6uclaKLYBqxYSmUiuBdM1KG9oAoGCCqGSM49
-AwEHoUQDQgAE732fWHLNPMPsP1U1ibXvb55erlEVMlpXBGsj+KYwVqU1XCmW9Z9h
-hP7X/5js/DX92J/utoHyjUtVpQOzdTrbsQ==
------END EC PRIVATE KEY-----
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index a30740a..b38c7d4 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -700,7 +700,6 @@
     msg "build: full config except platform/fsio/net, make, gcc, C99" # ~ 30s
     scripts/config.pl full
     scripts/config.pl unset MBEDTLS_PLATFORM_C
-    scripts/config.pl unset MBEDTLS_NET_C
     scripts/config.pl unset MBEDTLS_PLATFORM_MEMORY
     scripts/config.pl unset MBEDTLS_PLATFORM_PRINTF_ALT
     scripts/config.pl unset MBEDTLS_PLATFORM_FPRINTF_ALT
@@ -892,7 +891,6 @@
 component_build_arm_none_eabi_gcc () {
     msg "build: arm-none-eabi-gcc, make" # ~ 10s
     scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_NET_C
     scripts/config.pl unset MBEDTLS_TIMING_C
     scripts/config.pl unset MBEDTLS_FS_IO
     scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
@@ -912,7 +910,6 @@
 component_build_arm_none_eabi_gcc_no_udbl_division () {
     msg "build: arm-none-eabi-gcc -DMBEDTLS_NO_UDBL_DIVISION, make" # ~ 10s
     scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_NET_C
     scripts/config.pl unset MBEDTLS_TIMING_C
     scripts/config.pl unset MBEDTLS_FS_IO
     scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
@@ -935,7 +932,6 @@
 component_build_arm_none_eabi_gcc_no_64bit_multiplication () {
     msg "build: arm-none-eabi-gcc MBEDTLS_NO_64BIT_MULTIPLICATION, make" # ~ 10s
     scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_NET_C
     scripts/config.pl unset MBEDTLS_TIMING_C
     scripts/config.pl unset MBEDTLS_FS_IO
     scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
@@ -958,7 +954,6 @@
 component_build_armcc () {
     msg "build: ARM Compiler 5, make"
     scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_NET_C
     scripts/config.pl unset MBEDTLS_TIMING_C
     scripts/config.pl unset MBEDTLS_FS_IO
     scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
@@ -1009,6 +1004,12 @@
     make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 SHARED=1 tests
     make WINDOWS_BUILD=1 clean
 }
+support_build_mingw() {
+    case $(i686-w64-mingw32-gcc -dumpversion) in
+        [0-5]*) false;;
+        *) true;;
+    esac
+}
 
 component_test_memsan () {
     msg "build: MSan (clang)" # ~ 1 min 20s
diff --git a/tests/scripts/depends-pkalgs.pl b/tests/scripts/depends-pkalgs.pl
index 97a43e8..72c7f41 100755
--- a/tests/scripts/depends-pkalgs.pl
+++ b/tests/scripts/depends-pkalgs.pl
@@ -35,26 +35,13 @@
 # Some algorithms can't be disabled on their own as others depend on them, so
 # we list those reverse-dependencies here to keep check_config.h happy.
 my %algs = (
-    'MBEDTLS_ECDSA_C'   => ['MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED'],
+    'MBEDTLS_ECDSA_C'   => [],
     'MBEDTLS_ECP_C'     => ['MBEDTLS_ECDSA_C',
                             'MBEDTLS_ECDH_C',
-                            'MBEDTLS_ECJPAKE_C',
-                            'MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED',
-                            'MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED',
-                            'MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED',
-                            'MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED',
-                            'MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED'],
-    'MBEDTLS_X509_RSASSA_PSS_SUPPORT'   => [],
-    'MBEDTLS_PKCS1_V21' => ['MBEDTLS_X509_RSASSA_PSS_SUPPORT'],
-    'MBEDTLS_PKCS1_V15' => ['MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED',
-                            'MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED',
-                            'MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED',
-                            'MBEDTLS_KEY_EXCHANGE_RSA_ENABLED'],
-    'MBEDTLS_RSA_C'     => ['MBEDTLS_X509_RSASSA_PSS_SUPPORT',
-                            'MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED',
-                            'MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED',
-                            'MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED',
-                            'MBEDTLS_KEY_EXCHANGE_RSA_ENABLED'],
+                            'MBEDTLS_ECJPAKE_C'],
+    'MBEDTLS_PKCS1_V21' => [],
+    'MBEDTLS_PKCS1_V15' => [],
+    'MBEDTLS_RSA_C'     => [],
 );
 
 system( "cp $config_h $config_h.bak" ) and die;
diff --git a/tests/scripts/generate_test_code.py b/tests/scripts/generate_test_code.py
index 1fff099..3a25a84 100755
--- a/tests/scripts/generate_test_code.py
+++ b/tests/scripts/generate_test_code.py
@@ -24,15 +24,12 @@
 framework. This doc string contains a summary of the framework
 and explains the function of this script.
 
-Mbed TLS test suites:
-=====================
+Mbed Crypto test suites:
+========================
 Scope:
 ------
-The test suites focus on unit testing the crypto primitives and also
-include x509 parser tests. Tests can be added to test any Mbed TLS
-module. However, the framework is not capable of testing SSL
-protocol, since that requires full stack execution and that is best
-tested as part of the system test.
+The test suites focus on unit testing the crypto primitives. Tests can be added
+to test any Mbed Crypto module.
 
 Test case definition:
 ---------------------
diff --git a/tests/scripts/list-identifiers.sh b/tests/scripts/list-identifiers.sh
index ccd488c..eaf270c 100755
--- a/tests/scripts/list-identifiers.sh
+++ b/tests/scripts/list-identifiers.sh
@@ -1,4 +1,10 @@
-#!/bin/sh
+#!/bin/bash
+#
+# Create a file named identifiers containing identifiers from internal header
+# files or all header files, based on --internal flag.
+# Outputs the line count of the file to stdout.
+#
+# Usage: list-identifiers.sh [ -i | --internal ]
 
 set -eu
 
@@ -7,7 +13,29 @@
     exit 1
 fi
 
-HEADERS=$( ls include/mbedtls/*.h include/psa/*.h library/*.h | egrep -v 'compat-1\.3\.h|bn_mul' )
+INTERNAL=""
+
+until [ -z "${1-}" ]
+do
+  case "$1" in
+    -i|--internal)
+      INTERNAL="1"
+      ;;
+    *)
+      # print error
+      echo "Unknown argument: '$1'"
+      exit 1
+      ;;
+  esac
+  shift
+done
+
+if [ $INTERNAL ]
+then
+    HEADERS=$( ls include/mbedtls/*_internal.h library/*.h | egrep -v 'compat-1\.3\.h|bn_mul' )
+else
+    HEADERS=$( ls include/mbedtls/*.h include/psa/*.h library/*.h | egrep -v 'compat-1\.3\.h|bn_mul' )
+fi
 
 rm -f identifiers
 
diff --git a/tests/scripts/list-macros.sh b/tests/scripts/list-macros.sh
index 5982bb7..3fa66f1 100755
--- a/tests/scripts/list-macros.sh
+++ b/tests/scripts/list-macros.sh
@@ -9,8 +9,15 @@
 
 HEADERS=$( ls include/mbedtls/*.h include/psa/*.h | egrep -v 'compat-1\.3\.h' )
 
-sed -n -e 's/.*#define \([a-zA-Z0-9_]*\).*/\1/p' $HEADERS \
-    | egrep -v '^(asm|inline|EMIT|_CRT_SECURE_NO_DEPRECATE)$|^MULADDC_' \
-    | sort -u > macros
+# White-list macros we want to be able to refer to that don't exist in the
+# crypto library, useful when referring to macros in Mbed TLS from comments.
+WHITELIST='MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS'
+
+# Generate a list of macros and combine it with the white-listed macros in
+# sorted order.
+{ sed -n -e 's/.*#define \([a-zA-Z0-9_]*\).*/\1/p' $HEADERS |
+  egrep -v '^(asm|inline|EMIT|_CRT_SECURE_NO_DEPRECATE)$|^MULADDC_';
+  printf '%s\n' $WHITELIST;
+} | sort -u > macros
 
 wc -l macros
diff --git a/tests/scripts/test-ref-configs.pl b/tests/scripts/test-ref-configs.pl
index 56f2036..09baebb 100755
--- a/tests/scripts/test-ref-configs.pl
+++ b/tests/scripts/test-ref-configs.pl
@@ -17,16 +17,8 @@
 use strict;
 
 my %configs = (
-    'config-default.h' => {
-    },
-    'config-mini-tls1_1.h' => {
-    },
     'config-suite-b.h' => {
     },
-    'config-ccm-psk-tls1_2.h' => {
-    },
-    'config-thread.h' => {
-    },
 );
 
 # If no config-name is provided, use all known configs.
diff --git a/visualc/VS2010/cert_app.vcxproj b/visualc/VS2010/cert_app.vcxproj
deleted file mode 100644
index fef0efe..0000000
--- a/visualc/VS2010/cert_app.vcxproj
+++ /dev/null
@@ -1,174 +0,0 @@
-﻿<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|x64">
-      <Configuration>Debug</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|x64">
-      <Configuration>Release</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <ItemGroup>
-    <ClCompile Include="..\..\programs\x509\cert_app.c" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="mbedTLS.vcxproj">
-      <Project>{46cf2d25-6a36-4189-b59c-e4815388e554}</Project>
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-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalLibraryDirectories>Release</AdditionalLibraryDirectories>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <PrecompiledHeader>
-      </PrecompiledHeader>
-      <Optimization>MaxSpeed</Optimization>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN64;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
-    </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalLibraryDirectories>Release</AdditionalLibraryDirectories>
-      <AdditionalDependencies>%(AdditionalDependencies);</AdditionalDependencies>
-    </Link>
-  </ItemDefinitionGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-  <ImportGroup Label="ExtensionTargets">
-  </ImportGroup>
-</Project>
diff --git a/visualc/VS2010/mbedTLS.sln b/visualc/VS2010/mbedTLS.sln
index 9645016..9292b25 100644
--- a/visualc/VS2010/mbedTLS.sln
+++ b/visualc/VS2010/mbedTLS.sln
@@ -128,51 +128,6 @@
 		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dtls_client", "dtls_client.vcxproj", "{FE7AB78F-DBF1-0721-3522-0D7C3011D2E5}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dtls_server", "dtls_server.vcxproj", "{BFE89EAA-D98B-34E1-C5A4-4080F6FFE317}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ssl_client1", "ssl_client1.vcxproj", "{487A2F80-3CA3-678D-88D5-82194872CF08}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ssl_client2", "ssl_client2.vcxproj", "{4E590E9D-E28F-87FF-385B-D58736388231}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ssl_server", "ssl_server.vcxproj", "{E08E0065-896A-7487-DEA5-D3B80B71F975}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ssl_server2", "ssl_server2.vcxproj", "{A4DA7463-1047-BDF5-E1B3-5632CB573F41}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ssl_fork_server", "ssl_fork_server.vcxproj", "{918CD402-047D-8467-E11C-E1132053F916}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "mini_client", "mini_client.vcxproj", "{C4FE29EA-266D-5295-4840-976B9B5B3843}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ssl_mail_client", "ssl_mail_client.vcxproj", "{7C4863A1-941A-C5AE-E1F9-30F062E4B2FD}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "gen_entropy", "gen_entropy.vcxproj", "{DE695064-13C3-18B0-378D-8B22672BF3F4}"
 	ProjectSection(ProjectDependencies) = postProject
 		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
@@ -198,11 +153,6 @@
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 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "udp_proxy", "udp_proxy.vcxproj", "{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zeroize", "zeroize.vcxproj", "{10C01E94-4926-063E-9F56-C84ED190D349}"
 	ProjectSection(ProjectDependencies) = postProject
 		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
@@ -223,31 +173,6 @@
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 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "cert_app", "cert_app.vcxproj", "{D4D691D4-137C-CBFA-735B-D46636D7E4D8}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "crl_app", "crl_app.vcxproj", "{DB904B85-AD31-B7FB-114F-88760CC485F2}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "cert_req", "cert_req.vcxproj", "{C9E2AB15-8AEF-DD48-60C3-557ECC5215BE}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "cert_write", "cert_write.vcxproj", "{35E52E46-3BA9-4361-41D3-53663C2E9B8A}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "req_app", "req_app.vcxproj", "{486B1375-5CFA-C2D2-DD89-C9F497BADCB3}"
-	ProjectSection(ProjectDependencies) = postProject
-		{46CF2D25-6A36-4189-B59C-E4815388E554} = {46CF2D25-6A36-4189-B59C-E4815388E554}
-	EndProjectSection
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Win32 = Debug|Win32
@@ -464,78 +389,6 @@
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-		{FE7AB78F-DBF1-0721-3522-0D7C3011D2E5}.Debug|Win32.ActiveCfg = Debug|Win32
-		{FE7AB78F-DBF1-0721-3522-0D7C3011D2E5}.Debug|Win32.Build.0 = Debug|Win32
-		{FE7AB78F-DBF1-0721-3522-0D7C3011D2E5}.Debug|x64.ActiveCfg = Debug|x64
-		{FE7AB78F-DBF1-0721-3522-0D7C3011D2E5}.Debug|x64.Build.0 = Debug|x64
-		{FE7AB78F-DBF1-0721-3522-0D7C3011D2E5}.Release|Win32.ActiveCfg = Release|Win32
-		{FE7AB78F-DBF1-0721-3522-0D7C3011D2E5}.Release|Win32.Build.0 = Release|Win32
-		{FE7AB78F-DBF1-0721-3522-0D7C3011D2E5}.Release|x64.ActiveCfg = Release|x64
-		{FE7AB78F-DBF1-0721-3522-0D7C3011D2E5}.Release|x64.Build.0 = Release|x64
-		{BFE89EAA-D98B-34E1-C5A4-4080F6FFE317}.Debug|Win32.ActiveCfg = Debug|Win32
-		{BFE89EAA-D98B-34E1-C5A4-4080F6FFE317}.Debug|Win32.Build.0 = Debug|Win32
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-		{BFE89EAA-D98B-34E1-C5A4-4080F6FFE317}.Release|Win32.ActiveCfg = Release|Win32
-		{BFE89EAA-D98B-34E1-C5A4-4080F6FFE317}.Release|Win32.Build.0 = Release|Win32
-		{BFE89EAA-D98B-34E1-C5A4-4080F6FFE317}.Release|x64.ActiveCfg = Release|x64
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-		{4E590E9D-E28F-87FF-385B-D58736388231}.Release|x64.ActiveCfg = Release|x64
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-		{E08E0065-896A-7487-DEA5-D3B80B71F975}.Debug|Win32.Build.0 = Debug|Win32
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-		{E08E0065-896A-7487-DEA5-D3B80B71F975}.Release|Win32.ActiveCfg = Release|Win32
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-		{E08E0065-896A-7487-DEA5-D3B80B71F975}.Release|x64.ActiveCfg = Release|x64
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-		{918CD402-047D-8467-E11C-E1132053F916}.Debug|x64.ActiveCfg = Debug|x64
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-		{918CD402-047D-8467-E11C-E1132053F916}.Release|Win32.Build.0 = Release|Win32
-		{918CD402-047D-8467-E11C-E1132053F916}.Release|x64.ActiveCfg = Release|x64
-		{918CD402-047D-8467-E11C-E1132053F916}.Release|x64.Build.0 = Release|x64
-		{C4FE29EA-266D-5295-4840-976B9B5B3843}.Debug|Win32.ActiveCfg = Debug|Win32
-		{C4FE29EA-266D-5295-4840-976B9B5B3843}.Debug|Win32.Build.0 = Debug|Win32
-		{C4FE29EA-266D-5295-4840-976B9B5B3843}.Debug|x64.ActiveCfg = Debug|x64
-		{C4FE29EA-266D-5295-4840-976B9B5B3843}.Debug|x64.Build.0 = Debug|x64
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-		{C4FE29EA-266D-5295-4840-976B9B5B3843}.Release|x64.Build.0 = Release|x64
-		{7C4863A1-941A-C5AE-E1F9-30F062E4B2FD}.Debug|Win32.ActiveCfg = Debug|Win32
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-		{7C4863A1-941A-C5AE-E1F9-30F062E4B2FD}.Debug|x64.ActiveCfg = Debug|x64
-		{7C4863A1-941A-C5AE-E1F9-30F062E4B2FD}.Debug|x64.Build.0 = Debug|x64
-		{7C4863A1-941A-C5AE-E1F9-30F062E4B2FD}.Release|Win32.ActiveCfg = Release|Win32
-		{7C4863A1-941A-C5AE-E1F9-30F062E4B2FD}.Release|Win32.Build.0 = Release|Win32
-		{7C4863A1-941A-C5AE-E1F9-30F062E4B2FD}.Release|x64.ActiveCfg = Release|x64
-		{7C4863A1-941A-C5AE-E1F9-30F062E4B2FD}.Release|x64.Build.0 = Release|x64
 		{DE695064-13C3-18B0-378D-8B22672BF3F4}.Debug|Win32.ActiveCfg = Debug|Win32
 		{DE695064-13C3-18B0-378D-8B22672BF3F4}.Debug|Win32.Build.0 = Debug|Win32
 		{DE695064-13C3-18B0-378D-8B22672BF3F4}.Debug|x64.ActiveCfg = Debug|x64
@@ -576,14 +429,6 @@
 		{7DBC5F77-3DA1-5F73-8421-E693D95FC66A}.Release|Win32.Build.0 = Release|Win32
 		{7DBC5F77-3DA1-5F73-8421-E693D95FC66A}.Release|x64.ActiveCfg = Release|x64
 		{7DBC5F77-3DA1-5F73-8421-E693D95FC66A}.Release|x64.Build.0 = Release|x64
-		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Debug|Win32.ActiveCfg = Debug|Win32
-		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Debug|Win32.Build.0 = Debug|Win32
-		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Debug|x64.ActiveCfg = Debug|x64
-		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Debug|x64.Build.0 = Debug|x64
-		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Release|Win32.ActiveCfg = Release|Win32
-		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Release|Win32.Build.0 = Release|Win32
-		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Release|x64.ActiveCfg = Release|x64
-		{7E2C80FE-3CC3-82B4-0CAD-65DC233DE13A}.Release|x64.Build.0 = Release|x64
 		{10C01E94-4926-063E-9F56-C84ED190D349}.Debug|Win32.ActiveCfg = Debug|Win32
 		{10C01E94-4926-063E-9F56-C84ED190D349}.Debug|Win32.Build.0 = Debug|Win32
 		{10C01E94-4926-063E-9F56-C84ED190D349}.Debug|x64.ActiveCfg = Debug|x64
@@ -616,46 +461,6 @@
 		{23EF735C-CC4C-3EC4-A75E-903DB340F04A}.Release|Win32.Build.0 = Release|Win32
 		{23EF735C-CC4C-3EC4-A75E-903DB340F04A}.Release|x64.ActiveCfg = Release|x64
 		{23EF735C-CC4C-3EC4-A75E-903DB340F04A}.Release|x64.Build.0 = Release|x64
-		{D4D691D4-137C-CBFA-735B-D46636D7E4D8}.Debug|Win32.ActiveCfg = Debug|Win32
-		{D4D691D4-137C-CBFA-735B-D46636D7E4D8}.Debug|Win32.Build.0 = Debug|Win32
-		{D4D691D4-137C-CBFA-735B-D46636D7E4D8}.Debug|x64.ActiveCfg = Debug|x64
-		{D4D691D4-137C-CBFA-735B-D46636D7E4D8}.Debug|x64.Build.0 = Debug|x64
-		{D4D691D4-137C-CBFA-735B-D46636D7E4D8}.Release|Win32.ActiveCfg = Release|Win32
-		{D4D691D4-137C-CBFA-735B-D46636D7E4D8}.Release|Win32.Build.0 = Release|Win32
-		{D4D691D4-137C-CBFA-735B-D46636D7E4D8}.Release|x64.ActiveCfg = Release|x64
-		{D4D691D4-137C-CBFA-735B-D46636D7E4D8}.Release|x64.Build.0 = Release|x64
-		{DB904B85-AD31-B7FB-114F-88760CC485F2}.Debug|Win32.ActiveCfg = Debug|Win32
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index c56e976..07c80e8 100644
--- a/visualc/VS2010/mbedTLS.vcxproj
+++ b/visualc/VS2010/mbedTLS.vcxproj
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