diff --git a/CMakeLists.txt b/CMakeLists.txt
index fdaa2f1..2ab2e01 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -179,6 +179,9 @@
     execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion
                     OUTPUT_VARIABLE GCC_VERSION)
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wwrite-strings")
+    if (GCC_VERSION VERSION_GREATER 3.0 OR GCC_VERSION VERSION_EQUAL 3.0)
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wformat=2 -Wno-format-nonliteral")
+    endif()
     if (GCC_VERSION VERSION_GREATER 4.3 OR GCC_VERSION VERSION_EQUAL 4.3)
         set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wvla")
     endif()
@@ -194,6 +197,9 @@
             set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wformat-signedness")
         endif()
     endif()
+    if (GCC_VERSION VERSION_GREATER 7.0 OR GCC_VERSION VERSION_EQUAL 7.0)
+      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wformat-overflow=2 -Wformat-truncation=2")
+    endif()
     set(CMAKE_C_FLAGS_RELEASE     "-O2")
     set(CMAKE_C_FLAGS_DEBUG       "-O0 -g3")
     set(CMAKE_C_FLAGS_COVERAGE    "-O0 -g3 --coverage")
@@ -204,7 +210,7 @@
 endif(CMAKE_COMPILER_IS_GNU)
 
 if(CMAKE_COMPILER_IS_CLANG)
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wwrite-strings -Wpointer-arith -Wimplicit-fallthrough -Wshadow -Wvla")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wwrite-strings -Wpointer-arith -Wimplicit-fallthrough -Wshadow -Wvla -Wformat=2 -Wno-format-nonliteral")
     set(CMAKE_C_FLAGS_RELEASE     "-O2")
     set(CMAKE_C_FLAGS_DEBUG       "-O0 -g3")
     set(CMAKE_C_FLAGS_COVERAGE    "-O0 -g3 --coverage")
diff --git a/ChangeLog.d/fix-printf-specifiers.txt b/ChangeLog.d/fix-printf-specifiers.txt
new file mode 100644
index 0000000..4867721
--- /dev/null
+++ b/ChangeLog.d/fix-printf-specifiers.txt
@@ -0,0 +1,10 @@
+Bugfix
+   * Add printf function attributes to mbedtls_debug_print_msg to ensure we
+     get printf format specifier warnings.
+Changes
+   * Add extra printf compiler warning flags to builds.
+Requirement changes
+   * The library now uses the %zu format specifier with the printf() family of
+     functions, so requires a toolchain that supports it. This change does not
+     affect the maintained LTS branches, so when contributing changes please
+     bear this in mind and do not add them to backported code.
diff --git a/ChangeLog.d/fix_memsan_build_clang11.txt b/ChangeLog.d/fix_memsan_build_clang11.txt
new file mode 100644
index 0000000..3f5cc05
--- /dev/null
+++ b/ChangeLog.d/fix_memsan_build_clang11.txt
@@ -0,0 +1,2 @@
+Changes
+   * Fix memsan build false positive in x509_crt.c with clang 11
diff --git a/include/mbedtls/debug.h b/include/mbedtls/debug.h
index ab5b037..dd20ba0 100644
--- a/include/mbedtls/debug.h
+++ b/include/mbedtls/debug.h
@@ -80,6 +80,50 @@
 
 #endif /* MBEDTLS_DEBUG_C */
 
+/**
+ * \def MBEDTLS_PRINTF_ATTRIBUTE
+ *
+ * Mark a function as having printf attributes, and thus enable checking
+ * via -wFormat and other flags. This does nothing on builds with compilers
+ * that do not support the format attribute
+ *
+ * Module:  library/debug.c
+ * Caller:
+ *
+ * This module provides debugging functions.
+ */
+#if defined(__has_attribute)
+#if __has_attribute(format)
+#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check)    \
+    __attribute__((format (printf, string_index, first_to_check)))
+#else /* __has_attribute(format) */
+#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check)
+#endif /* __has_attribute(format) */
+#else /* defined(__has_attribute) */
+#define MBEDTLS_PRINTF_ATTRIBUTE(string_index, first_to_check)
+#endif
+
+/**
+ * \def MBEDTLS_PRINTF_SIZET
+ *
+ * MBEDTLS_PRINTF_xxx: Due to issues with older window compilers
+ * and MinGW we need to define the printf specifier for size_t
+ * and long long per platform.
+ *
+ * Module:  library/debug.c
+ * Caller:
+ *
+ * This module provides debugging functions.
+ */
+#if defined(__MINGW32__) || (defined(_MSC_VER) && _MSC_VER < 1800)
+   #include <inttypes.h>
+   #define MBEDTLS_PRINTF_SIZET     PRIuPTR
+   #define MBEDTLS_PRINTF_LONGLONG  "I64d"
+#else /* defined(__MINGW32__) || (defined(_MSC_VER) && _MSC_VER < 1800) */
+   #define MBEDTLS_PRINTF_SIZET     "zu"
+   #define MBEDTLS_PRINTF_LONGLONG  "lld"
+#endif /* defined(__MINGW32__) || (defined(_MSC_VER) && _MSC_VER < 1800) */
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -118,7 +162,7 @@
  */
 void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
                               const char *file, int line,
-                              const char *format, ... );
+                              const char *format, ... ) MBEDTLS_PRINTF_ATTRIBUTE(5, 6);
 
 /**
  * \brief   Print the return value of a function to the debug output. This
diff --git a/include/psa/crypto_sizes.h b/include/psa/crypto_sizes.h
index 3956834..9bb7a05 100644
--- a/include/psa/crypto_sizes.h
+++ b/include/psa/crypto_sizes.h
@@ -65,8 +65,6 @@
  *
  * \return The hash size for the specified hash algorithm.
  *         If the hash algorithm is not recognized, return 0.
- *         An implementation may return either 0 or the correct size
- *         for a hash algorithm that it recognizes, but does not support.
  */
 #define PSA_HASH_LENGTH(alg)                                        \
     (                                                               \
@@ -91,9 +89,8 @@
  *
  * Maximum size of a hash.
  *
- * This macro must expand to a compile-time constant integer. This value
- * should be the maximum size of a hash supported by the implementation,
- * in bytes, and must be no smaller than this maximum.
+ * This macro expands to a compile-time constant integer. This value
+ * is the maximum size of a hash in bytes.
  */
 /* Note: for HMAC-SHA-3, the block size is 144 bytes for HMAC-SHA3-226,
  * 136 bytes for HMAC-SHA3-256, 104 bytes for SHA3-384, 72 bytes for
@@ -110,9 +107,8 @@
  *
  * Maximum size of a MAC.
  *
- * This macro must expand to a compile-time constant integer. This value
- * should be the maximum size of a MAC supported by the implementation,
- * in bytes, and must be no smaller than this maximum.
+ * This macro expands to a compile-time constant integer. This value
+ * is the maximum size of a MAC in bytes.
  */
 /* All non-HMAC MACs have a maximum size that's smaller than the
  * minimum possible value of PSA_HASH_MAX_SIZE in this implementation. */
@@ -132,15 +128,18 @@
  *                            tag that can be distinguished from the rest of
  *                            the ciphertext, return 0.
  *                            If the AEAD algorithm is not recognized, return 0.
- *                            An implementation may return either 0 or a
- *                            correct size for an AEAD algorithm that it
- *                            recognizes, but does not support.
  */
 #define PSA_AEAD_TAG_LENGTH(alg)                                        \
     (PSA_ALG_IS_AEAD(alg) ?                                             \
      (((alg) & PSA_ALG_AEAD_TAG_LENGTH_MASK) >> PSA_AEAD_TAG_LENGTH_OFFSET) : \
      0)
 
+/** The maximum tag size for all supported AEAD algorithms, in bytes.
+ *
+ * See also #PSA_AEAD_TAG_LENGTH(\p alg).
+ */
+#define PSA_AEAD_TAG_MAX_SIZE       16
+
 /* The maximum size of an RSA key on this implementation, in bits.
  * This is a vendor-specific macro.
  *
@@ -205,7 +204,7 @@
  */
 #define PSA_TLS12_PSK_TO_MS_PSK_MAX_SIZE 128
 
-/** The maximum size of a block cipher supported by the implementation. */
+/** The maximum size of a block cipher. */
 #define PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE 16
 
 /** The size of the output of psa_mac_sign_finish(), in bytes.
@@ -242,6 +241,10 @@
  * insufficient buffer size. Depending on the algorithm, the actual size of
  * the ciphertext may be smaller.
  *
+ * \warning This macro may evaluate its arguments multiple times or
+ *          zero times, so you should not pass arguments that contain
+ *          side effects.
+ *
  * \param alg                 An AEAD algorithm
  *                            (\c PSA_ALG_XXX value such that
  *                            #PSA_ALG_IS_AEAD(\p alg) is true).
@@ -250,15 +253,33 @@
  * \return                    The AEAD ciphertext size for the specified
  *                            algorithm.
  *                            If the AEAD algorithm is not recognized, return 0.
- *                            An implementation may return either 0 or a
- *                            correct size for an AEAD algorithm that it
- *                            recognizes, but does not support.
  */
 #define PSA_AEAD_ENCRYPT_OUTPUT_SIZE(alg, plaintext_length)       \
     (PSA_AEAD_TAG_LENGTH(alg) != 0 ?                              \
      (plaintext_length) + PSA_AEAD_TAG_LENGTH(alg) :              \
      0)
 
+/** A sufficient output buffer size for psa_aead_encrypt(), for any of the
+ *  supported key types and AEAD algorithms.
+ *
+ * If the size of the ciphertext buffer is at least this large, it is guaranteed
+ * that psa_aead_encrypt() will not fail due to an insufficient buffer size.
+ *
+ * \note This macro returns a compile-time constant if its arguments are
+ *       compile-time constants.
+ *
+ * See also #PSA_AEAD_ENCRYPT_OUTPUT_SIZE(\p alg, \p plaintext_length).
+ *
+ * \param plaintext_length    Size of the plaintext in bytes.
+ *
+ * \return                    A sufficient output buffer size for any of the
+ *                            supported key types and AEAD algorithms.
+ *
+ */
+#define PSA_AEAD_ENCRYPT_OUTPUT_MAX_SIZE(plaintext_length)          \
+    ((plaintext_length) + PSA_AEAD_TAG_MAX_SIZE)
+
+
 /** The maximum size of the output of psa_aead_decrypt(), in bytes.
  *
  * If the size of the plaintext buffer is at least this large, it is
@@ -266,6 +287,10 @@
  * insufficient buffer size. Depending on the algorithm, the actual size of
  * the plaintext may be smaller.
  *
+ * \warning This macro may evaluate its arguments multiple times or
+ *          zero times, so you should not pass arguments that contain
+ *          side effects.
+ *
  * \param alg                 An AEAD algorithm
  *                            (\c PSA_ALG_XXX value such that
  *                            #PSA_ALG_IS_AEAD(\p alg) is true).
@@ -274,15 +299,78 @@
  * \return                    The AEAD ciphertext size for the specified
  *                            algorithm.
  *                            If the AEAD algorithm is not recognized, return 0.
- *                            An implementation may return either 0 or a
- *                            correct size for an AEAD algorithm that it
- *                            recognizes, but does not support.
  */
 #define PSA_AEAD_DECRYPT_OUTPUT_SIZE(alg, ciphertext_length)      \
     (PSA_AEAD_TAG_LENGTH(alg) != 0 ?                              \
      (ciphertext_length) - PSA_AEAD_TAG_LENGTH(alg) :             \
      0)
 
+/** A sufficient output buffer size for psa_aead_decrypt(), for any of the
+ *  supported key types and AEAD algorithms.
+ *
+ * If the size of the plaintext buffer is at least this large, it is guaranteed
+ * that psa_aead_decrypt() will not fail due to an insufficient buffer size.
+ *
+ * \note This macro returns a compile-time constant if its arguments are
+ *       compile-time constants.
+ *
+ * See also #PSA_AEAD_DECRYPT_OUTPUT_SIZE(\p alg, \p ciphertext_length).
+ *
+ * \param ciphertext_length   Size of the ciphertext in bytes.
+ *
+ * \return                    A sufficient output buffer size for any of the
+ *                            supported key types and AEAD algorithms.
+ *
+ */
+#define PSA_AEAD_DECRYPT_OUTPUT_MAX_SIZE(ciphertext_length)     \
+     (ciphertext_length)
+
+/** The default nonce size for an AEAD algorithm, in bytes.
+ *
+ * This macro can be used to allocate a buffer of sufficient size to
+ * store the nonce output from #psa_aead_generate_nonce().
+ *
+ * See also #PSA_AEAD_NONCE_MAX_SIZE.
+ *
+ * \note This is not the maximum size of nonce supported as input to
+ *       #psa_aead_set_nonce(), #psa_aead_encrypt() or #psa_aead_decrypt(),
+ *       just the default size that is generated by #psa_aead_generate_nonce().
+ *
+ * \warning This macro may evaluate its arguments multiple times or
+ *          zero times, so you should not pass arguments that contain
+ *          side effects.
+ *
+ * \param key_type  A symmetric key type that is compatible with
+ *                  algorithm \p alg.
+ *
+ * \param alg       An AEAD algorithm (\c PSA_ALG_XXX value such that
+ *                  #PSA_ALG_IS_AEAD(\p alg) is true).
+ *
+ * \return The default nonce size for the specified key type and algorithm.
+ *         If the key type or AEAD algorithm is not recognized,
+ *         or the parameters are incompatible, return 0.
+ */
+#define PSA_AEAD_NONCE_LENGTH(key_type, alg) \
+    (PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) == 16 && \
+         (PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(alg) == PSA_ALG_CCM || \
+          PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(alg) == PSA_ALG_GCM) ? 12 : \
+     (key_type) == PSA_KEY_TYPE_CHACHA20 && \
+          PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(alg) == PSA_ALG_CHACHA20_POLY1305 ? 12 : \
+     0)
+
+/** The maximum default nonce size among all supported pairs of key types and
+ *  AEAD algorithms, in bytes.
+ *
+ * This is equal to or greater than any value that #PSA_AEAD_NONCE_LENGTH()
+ * may return.
+ *
+ * \note This is not the maximum size of nonce supported as input to
+ *       #psa_aead_set_nonce(), #psa_aead_encrypt() or #psa_aead_decrypt(),
+ *       just the largest size that may be generated by
+ *       #psa_aead_generate_nonce().
+ */
+#define PSA_AEAD_NONCE_MAX_SIZE 12
+
 /** A sufficient output buffer size for psa_aead_update().
  *
  * If the size of the output buffer is at least this large, it is
@@ -290,6 +378,10 @@
  * insufficient buffer size. The actual size of the output may be smaller
  * in any given call.
  *
+ * \warning This macro may evaluate its arguments multiple times or
+ *          zero times, so you should not pass arguments that contain
+ *          side effects.
+ *
  * \param alg                 An AEAD algorithm
  *                            (\c PSA_ALG_XXX value such that
  *                            #PSA_ALG_IS_AEAD(\p alg) is true).
@@ -298,19 +390,29 @@
  * \return                    A sufficient output buffer size for the specified
  *                            algorithm.
  *                            If the AEAD algorithm is not recognized, return 0.
- *                            An implementation may return either 0 or a
- *                            correct size for an AEAD algorithm that it
- *                            recognizes, but does not support.
  */
 /* For all the AEAD modes defined in this specification, it is possible
  * to emit output without delay. However, hardware may not always be
  * capable of this. So for modes based on a block cipher, allow the
  * implementation to delay the output until it has a full block. */
-#define PSA_AEAD_UPDATE_OUTPUT_SIZE(alg, input_length)                  \
-    (PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ?                             \
-     PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, (input_length)) : \
+#define PSA_AEAD_UPDATE_OUTPUT_SIZE(alg, input_length)                              \
+    (PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ?                                         \
+     PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, (input_length)) :    \
      (input_length))
 
+/** A sufficient output buffer size for psa_aead_update(), for any of the
+ *  supported key types and AEAD algorithms.
+ *
+ * If the size of the output buffer is at least this large, it is guaranteed
+ * that psa_aead_update() will not fail due to an insufficient buffer size.
+ *
+ * See also #PSA_AEAD_UPDATE_OUTPUT_SIZE(\p alg, \p input_length).
+ *
+ * \param input_length      Size of the input in bytes.
+ */
+#define PSA_AEAD_UPDATE_OUTPUT_MAX_SIZE(input_length)                           \
+    (PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, (input_length)))
+
 /** A sufficient ciphertext buffer size for psa_aead_finish().
  *
  * If the size of the ciphertext buffer is at least this large, it is
@@ -325,15 +427,19 @@
  * \return                    A sufficient ciphertext buffer size for the
  *                            specified algorithm.
  *                            If the AEAD algorithm is not recognized, return 0.
- *                            An implementation may return either 0 or a
- *                            correct size for an AEAD algorithm that it
- *                            recognizes, but does not support.
  */
 #define PSA_AEAD_FINISH_OUTPUT_SIZE(alg)                                \
     (PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ?                             \
      PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE :                                  \
      0)
 
+/** A sufficient ciphertext buffer size for psa_aead_finish(), for any of the
+ *  supported key types and AEAD algorithms.
+ *
+ * See also #PSA_AEAD_FINISH_OUTPUT_SIZE(\p alg).
+ */
+#define PSA_AEAD_FINISH_OUTPUT_MAX_SIZE     (PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE)
+
 /** A sufficient plaintext buffer size for psa_aead_verify().
  *
  * If the size of the plaintext buffer is at least this large, it is
@@ -348,15 +454,19 @@
  * \return                    A sufficient plaintext buffer size for the
  *                            specified algorithm.
  *                            If the AEAD algorithm is not recognized, return 0.
- *                            An implementation may return either 0 or a
- *                            correct size for an AEAD algorithm that it
- *                            recognizes, but does not support.
  */
 #define PSA_AEAD_VERIFY_OUTPUT_SIZE(alg)                                \
     (PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ?                             \
      PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE :                                  \
      0)
 
+/** A sufficient plaintext buffer size for psa_aead_verify(), for any of the
+ *  supported key types and AEAD algorithms.
+ *
+ * See also #PSA_AEAD_VERIFY_OUTPUT_SIZE(\p alg).
+ */
+#define PSA_AEAD_VERIFY_OUTPUT_MAX_SIZE     (PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE)
+
 #define PSA_RSA_MINIMUM_PADDING_SIZE(alg)                         \
     (PSA_ALG_IS_RSA_OAEP(alg) ?                                   \
      2 * PSA_HASH_LENGTH(PSA_ALG_RSA_OAEP_GET_HASH(alg)) + 1 :    \
@@ -393,9 +503,8 @@
  *         a buffer size in bytes that guarantees that
  *         psa_sign_hash() will not fail with
  *         #PSA_ERROR_BUFFER_TOO_SMALL.
- *         If the parameters are a valid combination that is not supported
- *         by the implementation, this macro shall return either a
- *         sensible size or 0.
+ *         If the parameters are a valid combination that is not supported,
+ *         return either a sensible size or 0.
  *         If the parameters are not valid, the
  *         return value is unspecified.
  */
@@ -411,9 +520,8 @@
  *
  * Maximum size of an asymmetric signature.
  *
- * This macro must expand to a compile-time constant integer. This value
- * should be the maximum size of a signature supported by the implementation,
- * in bytes, and must be no smaller than this maximum.
+ * This macro expands to a compile-time constant integer. This value
+ * is the maximum size of a signature in bytes.
  */
 #define PSA_SIGNATURE_MAX_SIZE                               \
     (PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) > PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE ? \
@@ -440,9 +548,8 @@
  *         a buffer size in bytes that guarantees that
  *         psa_asymmetric_encrypt() will not fail with
  *         #PSA_ERROR_BUFFER_TOO_SMALL.
- *         If the parameters are a valid combination that is not supported
- *         by the implementation, this macro shall return either a
- *         sensible size or 0.
+ *         If the parameters are a valid combination that is not supported,
+ *         return either a sensible size or 0.
  *         If the parameters are not valid, the
  *         return value is unspecified.
  */
@@ -451,6 +558,15 @@
      ((void)alg, PSA_BITS_TO_BYTES(key_bits)) :                         \
      0)
 
+/** A sufficient output buffer size for psa_asymmetric_encrypt(), for any
+ *  supported asymmetric encryption.
+ *
+ * See also #PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE(\p key_type, \p key_bits, \p alg).
+ */
+/* This macro assumes that RSA is the only supported asymmetric encryption. */
+#define PSA_ASYMMETRIC_ENCRYPT_OUTPUT_MAX_SIZE          \
+    (PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS))
+
 /** Sufficient output buffer size for psa_asymmetric_decrypt().
  *
  * This macro returns a sufficient buffer size for a plaintext produced using
@@ -471,9 +587,8 @@
  *         a buffer size in bytes that guarantees that
  *         psa_asymmetric_decrypt() will not fail with
  *         #PSA_ERROR_BUFFER_TOO_SMALL.
- *         If the parameters are a valid combination that is not supported
- *         by the implementation, this macro shall return either a
- *         sensible size or 0.
+ *         If the parameters are a valid combination that is not supported,
+ *         return either a sensible size or 0.
  *         If the parameters are not valid, the
  *         return value is unspecified.
  */
@@ -482,6 +597,16 @@
      PSA_BITS_TO_BYTES(key_bits) - PSA_RSA_MINIMUM_PADDING_SIZE(alg) :  \
      0)
 
+/** A sufficient output buffer size for psa_asymmetric_decrypt(), for any
+ *  supported asymmetric decryption.
+ *
+ * This macro assumes that RSA is the only supported asymmetric encryption.
+ *
+ * See also #PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE(\p key_type, \p key_bits, \p alg).
+ */
+#define PSA_ASYMMETRIC_DECRYPT_OUTPUT_MAX_SIZE          \
+    (PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS))
+
 /* Maximum size of the ASN.1 encoding of an INTEGER with the specified
  * number of bits.
  *
@@ -627,11 +752,9 @@
  *         a buffer size in bytes that guarantees that
  *         psa_export_key() or psa_export_public_key() will not fail with
  *         #PSA_ERROR_BUFFER_TOO_SMALL.
- *         If the parameters are a valid combination that is not supported
- *         by the implementation, this macro shall return either a
- *         sensible size or 0.
- *         If the parameters are not valid, the
- *         return value is unspecified.
+ *         If the parameters are a valid combination that is not supported,
+ *         return either a sensible size or 0.
+ *         If the parameters are not valid, the return value is unspecified.
  */
 #define PSA_EXPORT_KEY_OUTPUT_SIZE(key_type, key_bits)                                              \
     (PSA_KEY_TYPE_IS_UNSTRUCTURED(key_type) ? PSA_BITS_TO_BYTES(key_bits) :                         \
@@ -643,48 +766,123 @@
      PSA_KEY_TYPE_IS_ECC_PUBLIC_KEY(key_type) ? PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits) :  \
      0)
 
-/** The default nonce size for an AEAD algorithm, in bytes.
+/** Sufficient output buffer size for psa_export_public_key().
  *
- * This macro can be used to allocate a buffer of sufficient size to
- * store the nonce output from #psa_aead_generate_nonce().
- *
- * See also #PSA_AEAD_NONCE_MAX_SIZE.
- *
- * \note This is not the maximum size of nonce supported as input to #psa_aead_set_nonce(),
- *       #psa_aead_encrypt() or #psa_aead_decrypt(), just the default size that is generated by
- *       #psa_aead_generate_nonce().
+ * This macro returns a compile-time constant if its arguments are
+ * compile-time constants.
  *
  * \warning This macro may evaluate its arguments multiple times or
  *          zero times, so you should not pass arguments that contain
  *          side effects.
  *
- * \param key_type  A symmetric key type that is compatible with algorithm \p alg.
+ * The following code illustrates how to allocate enough memory to export
+ * a public key by querying the key type and size at runtime.
+ * \code{c}
+ * psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
+ * psa_status_t status;
+ * status = psa_get_key_attributes(key, &attributes);
+ * if (status != PSA_SUCCESS) handle_error(...);
+ * psa_key_type_t key_type = psa_get_key_type(&attributes);
+ * size_t key_bits = psa_get_key_bits(&attributes);
+ * size_t buffer_size = PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE(key_type, key_bits);
+ * psa_reset_key_attributes(&attributes);
+ * uint8_t *buffer = malloc(buffer_size);
+ * if (buffer == NULL) handle_error(...);
+ * size_t buffer_length;
+ * status = psa_export_public_key(key, buffer, buffer_size, &buffer_length);
+ * if (status != PSA_SUCCESS) handle_error(...);
+ * \endcode
  *
- * \param alg       An AEAD algorithm (\c PSA_ALG_XXX value such that #PSA_ALG_IS_AEAD(\p alg) is true).
+ * \param key_type      A public key or key pair key type.
+ * \param key_bits      The size of the key in bits.
  *
- * \return The default nonce size for the specified key type and algorithm.
- *         If the key type or AEAD algorithm is not recognized,
- *         or the parameters are incompatible, return 0.
- *         An implementation can return either 0 or a correct size for a key type
- *         and AEAD algorithm that it recognizes, but does not support.
+ * \return              If the parameters are valid and supported, return
+ *                      a buffer size in bytes that guarantees that
+ *                      psa_export_public_key() will not fail with
+ *                      #PSA_ERROR_BUFFER_TOO_SMALL.
+ *                      If the parameters are a valid combination that is not
+ *                      supported, return either a sensible size or 0.
+ *                      If the parameters are not valid,
+ *                      the return value is unspecified.
+ *
+ *                      If the parameters are valid and supported,
+ *                      return the same result as
+ *                      #PSA_EXPORT_KEY_OUTPUT_SIZE(
+ *                          \p #PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(\p key_type),
+ *                          \p key_bits).
  */
-#define PSA_AEAD_NONCE_LENGTH(key_type, alg) \
-    (PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) == 16 && \
-         (PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(alg) == PSA_ALG_CCM || \
-          PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(alg) == PSA_ALG_GCM) ? 12 : \
-     (key_type) == PSA_KEY_TYPE_CHACHA20 && \
-          PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(alg) == PSA_ALG_CHACHA20_POLY1305 ? 12 : \
+#define PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE(key_type, key_bits)                           \
+    (PSA_KEY_TYPE_IS_RSA(key_type) ? PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(key_bits) : \
+     PSA_KEY_TYPE_IS_ECC(key_type) ? PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits) : \
      0)
 
-/** The maximum default nonce size among all supported pairs of key types and AEAD algorithms, in bytes.
+/** Sufficient buffer size for exporting any asymmetric key pair.
  *
- * This is equal to or greater than any value that #PSA_AEAD_NONCE_LENGTH() may return.
+ * This macro expands to a compile-time constant integer. This value is
+ * a sufficient buffer size when calling psa_export_key() to export any
+ * asymmetric key pair, regardless of the exact key type and key size.
  *
- * \note This is not the maximum size of nonce supported as input to #psa_aead_set_nonce(),
- *       #psa_aead_encrypt() or #psa_aead_decrypt(), just the largest size that may be generated by
- *       #psa_aead_generate_nonce().
+ * See also #PSA_EXPORT_KEY_OUTPUT_SIZE(\p key_type, \p key_bits).
  */
-#define PSA_AEAD_NONCE_MAX_SIZE 12
+#define PSA_EXPORT_KEY_PAIR_MAX_SIZE                                            \
+    (PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) >        \
+     PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) ?      \
+     PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) :        \
+     PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS))
+
+/** Sufficient buffer size for exporting any asymmetric public key.
+ *
+ * This macro expands to a compile-time constant integer. This value is
+ * a sufficient buffer size when calling psa_export_key() or
+ * psa_export_public_key() to export any asymmetric public key,
+ * regardless of the exact key type and key size.
+ *
+ * See also #PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE(\p key_type, \p key_bits).
+ */
+#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE                                          \
+    (PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) >      \
+     PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) ?    \
+     PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) :      \
+     PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS))
+
+/** Sufficient output buffer size for psa_raw_key_agreement().
+ *
+ * This macro returns a compile-time constant if its arguments are
+ * compile-time constants.
+ *
+ * \warning This macro may evaluate its arguments multiple times or
+ *          zero times, so you should not pass arguments that contain
+ *          side effects.
+ *
+ * See also #PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE.
+ *
+ * \param key_type      A supported key type.
+ * \param key_bits      The size of the key in bits.
+ *
+ * \return              If the parameters are valid and supported, return
+ *                      a buffer size in bytes that guarantees that
+ *                      psa_raw_key_agreement() will not fail with
+ *                      #PSA_ERROR_BUFFER_TOO_SMALL.
+ *                      If the parameters are a valid combination that
+ *                      is not supported, return either a sensible size or 0.
+ *                      If the parameters are not valid,
+ *                      the return value is unspecified.
+ */
+/* FFDH is not yet supported in PSA. */
+#define PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE(key_type, key_bits)   \
+    (PSA_KEY_TYPE_IS_ECC_KEY_PAIR(key_type) ?                   \
+     PSA_BITS_TO_BYTES(key_bits) :                              \
+     0)
+
+/** Maximum size of the output from psa_raw_key_agreement().
+ *
+ * This macro expands to a compile-time constant integer. This value is the
+ * maximum size of the output any raw key agreement algorithm, in bytes.
+ *
+ * See also #PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE(\p key_type, \p key_bits).
+ */
+#define PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE   \
+    (PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS))
 
 /** The default IV size for a cipher algorithm, in bytes.
  *
@@ -709,8 +907,6 @@
  *         If the algorithm does not use an IV, return 0.
  *         If the key type or cipher algorithm is not recognized,
  *         or the parameters are incompatible, return 0.
- *         An implementation can return either 0 or a correct size for a key type
- *         and cipher algorithm that it recognizes, but does not support.
  */
 #define PSA_CIPHER_IV_LENGTH(key_type, alg) \
     (PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) > 1 && \
@@ -730,4 +926,163 @@
  */
 #define PSA_CIPHER_IV_MAX_SIZE 16
 
+/** The maximum size of the output of psa_cipher_encrypt(), in bytes.
+ *
+ * If the size of the output buffer is at least this large, it is guaranteed
+ * that psa_cipher_encrypt() will not fail due to an insufficient buffer size.
+ * Depending on the algorithm, the actual size of the output might be smaller.
+ *
+ * See also #PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE(\p input_length).
+ *
+ * \warning This macro may evaluate its arguments multiple times or
+ *          zero times, so you should not pass arguments that contain
+ *          side effects.
+ *
+ * \param key_type      A symmetric key type that is compatible with algorithm
+ *                      alg.
+ * \param alg           A cipher algorithm (\c PSA_ALG_XXX value such that
+ *                      #PSA_ALG_IS_CIPHER(\p alg) is true).
+ * \param input_length  Size of the input in bytes.
+ *
+ * \return              A sufficient output size for the specified key type and
+ *                      algorithm. If the key type or cipher algorithm is not
+ *                      recognized, or the parameters are incompatible,
+ *                      return 0.
+ */
+#define PSA_CIPHER_ENCRYPT_OUTPUT_SIZE(key_type, alg, input_length)             \
+    (alg == PSA_ALG_CBC_PKCS7 ?                                                 \
+     PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type),          \
+                              (input_length) + 1) +                             \
+     PSA_CIPHER_IV_LENGTH((key_type), (alg)) :                                  \
+     (PSA_ALG_IS_CIPHER(alg) ?                                                  \
+      (input_length) + PSA_CIPHER_IV_LENGTH((key_type), (alg)) :                \
+     0))
+
+/** A sufficient output buffer size for psa_cipher_encrypt(), for any of the
+ *  supported key types and cipher algorithms.
+ *
+ * If the size of the output buffer is at least this large, it is guaranteed
+ * that psa_cipher_encrypt() will not fail due to an insufficient buffer size.
+ *
+ * See also #PSA_CIPHER_ENCRYPT_OUTPUT_SIZE(\p key_type, \p alg, \p input_length).
+ *
+ * \param input_length  Size of the input in bytes.
+ *
+ */
+#define PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE(input_length)                        \
+    (PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE,                  \
+                              (input_length) + 1) +                             \
+     PSA_CIPHER_IV_MAX_SIZE)
+
+/** The maximum size of the output of psa_cipher_decrypt(), in bytes.
+ *
+ * If the size of the output buffer is at least this large, it is guaranteed
+ * that psa_cipher_decrypt() will not fail due to an insufficient buffer size.
+ * Depending on the algorithm, the actual size of the output might be smaller.
+ *
+ * See also #PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE(\p input_length).
+ *
+ * \param key_type      A symmetric key type that is compatible with algorithm
+ *                      alg.
+ * \param alg           A cipher algorithm (\c PSA_ALG_XXX value such that
+ *                      #PSA_ALG_IS_CIPHER(\p alg) is true).
+ * \param input_length  Size of the input in bytes.
+ *
+ * \return              A sufficient output size for the specified key type and
+ *                      algorithm. If the key type or cipher algorithm is not
+ *                      recognized, or the parameters are incompatible,
+ *                      return 0.
+ */
+#define PSA_CIPHER_DECRYPT_OUTPUT_SIZE(key_type, alg, input_length)                 \
+    (PSA_ALG_IS_CIPHER(alg) &&                                                      \
+     ((key_type) & PSA_KEY_TYPE_CATEGORY_MASK) == PSA_KEY_TYPE_CATEGORY_SYMMETRIC ? \
+     (input_length) :                                                               \
+     0)
+
+/** A sufficient output buffer size for psa_cipher_decrypt(), for any of the
+ *  supported key types and cipher algorithms.
+ *
+ * If the size of the output buffer is at least this large, it is guaranteed
+ * that psa_cipher_decrypt() will not fail due to an insufficient buffer size.
+ *
+ * See also #PSA_CIPHER_DECRYPT_OUTPUT_SIZE(\p key_type, \p alg, \p input_length).
+ *
+ * \param input_length  Size of the input in bytes.
+ */
+#define PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE(input_length)    \
+    (input_length)
+
+/** A sufficient output buffer size for psa_cipher_update().
+ *
+ * If the size of the output buffer is at least this large, it is guaranteed
+ * that psa_cipher_update() will not fail due to an insufficient buffer size.
+ * The actual size of the output might be smaller in any given call.
+ *
+ * See also #PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE(\p input_length).
+ *
+ * \param key_type      A symmetric key type that is compatible with algorithm
+ *                      alg.
+ * \param alg           A cipher algorithm (PSA_ALG_XXX value such that
+ *                      #PSA_ALG_IS_CIPHER(\p alg) is true).
+ * \param input_length  Size of the input in bytes.
+ *
+ * \return              A sufficient output size for the specified key type and
+ *                      algorithm. If the key type or cipher algorithm is not
+ *                      recognized, or the parameters are incompatible, return 0.
+ */
+#define PSA_CIPHER_UPDATE_OUTPUT_SIZE(key_type, alg, input_length)              \
+    (PSA_ALG_IS_CIPHER(alg) ?                                                   \
+     (((alg) == PSA_ALG_CBC_PKCS7      ||                                       \
+       (alg) == PSA_ALG_CBC_NO_PADDING ||                                       \
+       (alg) == PSA_ALG_ECB_NO_PADDING) ?                                       \
+      PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type),         \
+                                input_length) :                                 \
+      (input_length)) :                                                         \
+     0)
+
+/** A sufficient output buffer size for psa_cipher_update(), for any of the
+ *  supported key types and cipher algorithms.
+ *
+ * If the size of the output buffer is at least this large, it is guaranteed
+ * that psa_cipher_update() will not fail due to an insufficient buffer size.
+ *
+ * See also #PSA_CIPHER_UPDATE_OUTPUT_SIZE(\p key_type, \p alg, \p input_length).
+ *
+ * \param input_length  Size of the input in bytes.
+ */
+#define PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE(input_length)     \
+    (PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, input_length))
+
+/** A sufficient ciphertext buffer size for psa_cipher_finish().
+ *
+ * If the size of the ciphertext buffer is at least this large, it is
+ * guaranteed that psa_cipher_finish() will not fail due to an insufficient
+ * ciphertext buffer size. The actual size of the output might be smaller in
+ * any given call.
+ *
+ * See also #PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE().
+ *
+ * \param key_type      A symmetric key type that is compatible with algorithm
+ *                      alg.
+ * \param alg           A cipher algorithm (PSA_ALG_XXX value such that
+ *                      #PSA_ALG_IS_CIPHER(\p alg) is true).
+ * \return              A sufficient output size for the specified key type and
+ *                      algorithm. If the key type or cipher algorithm is not
+ *                      recognized, or the parameters are incompatible, return 0.
+ */
+#define PSA_CIPHER_FINISH_OUTPUT_SIZE(key_type, alg)    \
+    (PSA_ALG_IS_CIPHER(alg) ?                           \
+     (alg == PSA_ALG_CBC_PKCS7 ?                        \
+      PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) :         \
+      0) :                                              \
+     0)
+
+/** A sufficient ciphertext buffer size for psa_cipher_finish(), for any of the
+ *  supported key types and cipher algorithms.
+ *
+ * See also #PSA_CIPHER_FINISH_OUTPUT_SIZE(\p key_type, \p alg).
+ */
+#define PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE           \
+    (PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE)
+
 #endif /* PSA_CRYPTO_SIZES_H */
diff --git a/library/Makefile b/library/Makefile
index 903dc0d..6bb9c17 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -2,7 +2,7 @@
 # Also see "include/mbedtls/config.h"
 
 CFLAGS	?= -O2
-WARNING_CFLAGS ?=  -Wall -Wextra
+WARNING_CFLAGS ?=  -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
 LDFLAGS ?=
 
 # Include ../include for public headers and . for private headers.
diff --git a/library/debug.c b/library/debug.c
index c3384be..e91d1ad 100644
--- a/library/debug.c
+++ b/library/debug.c
@@ -74,6 +74,7 @@
 #endif
 }
 
+MBEDTLS_PRINTF_ATTRIBUTE(5, 6)
 void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
                               const char *file, int line,
                               const char *format, ... )
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 57053ef..6225272 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -2145,7 +2145,7 @@
     defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
-static const mbedtls_md_info_t *mbedtls_md_info_from_psa( psa_algorithm_t alg )
+const mbedtls_md_info_t *mbedtls_md_info_from_psa( psa_algorithm_t alg )
 {
     switch( alg )
     {
@@ -3280,275 +3280,59 @@
 /* Asymmetric cryptography */
 /****************************************************************/
 
+psa_status_t psa_sign_hash_internal(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length )
+{
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS)
-/* Decode the hash algorithm from alg and store the mbedtls encoding in
- * md_alg. Verify that the hash length is acceptable. */
-static psa_status_t psa_rsa_decode_md_type( psa_algorithm_t alg,
-                                            size_t hash_length,
-                                            mbedtls_md_type_t *md_alg )
-{
-    psa_algorithm_t hash_alg = PSA_ALG_SIGN_GET_HASH( alg );
-    const mbedtls_md_info_t *md_info = mbedtls_md_info_from_psa( hash_alg );
-    *md_alg = mbedtls_md_get_type( md_info );
-
-    /* The Mbed TLS RSA module uses an unsigned int for hash length
-     * parameters. Validate that it fits so that we don't risk an
-     * overflow later. */
-#if SIZE_MAX > UINT_MAX
-    if( hash_length > UINT_MAX )
-        return( PSA_ERROR_INVALID_ARGUMENT );
-#endif
-
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN)
-    /* For PKCS#1 v1.5 signature, if using a hash, the hash length
-     * must be correct. */
-    if( PSA_ALG_IS_RSA_PKCS1V15_SIGN( alg ) &&
-        alg != PSA_ALG_RSA_PKCS1V15_SIGN_RAW )
+    if( attributes->core.type == PSA_KEY_TYPE_RSA_KEY_PAIR )
     {
-        if( md_info == NULL )
-            return( PSA_ERROR_NOT_SUPPORTED );
-        if( mbedtls_md_get_size( md_info ) != hash_length )
-            return( PSA_ERROR_INVALID_ARGUMENT );
-    }
-#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN */
-
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS)
-    /* PSS requires a hash internally. */
-    if( PSA_ALG_IS_RSA_PSS( alg ) )
-    {
-        if( md_info == NULL )
-            return( PSA_ERROR_NOT_SUPPORTED );
-    }
-#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS */
-
-    return( PSA_SUCCESS );
-}
-
-static psa_status_t psa_rsa_sign( mbedtls_rsa_context *rsa,
-                                  psa_algorithm_t alg,
-                                  const uint8_t *hash,
-                                  size_t hash_length,
-                                  uint8_t *signature,
-                                  size_t signature_size,
-                                  size_t *signature_length )
-{
-    psa_status_t status;
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_md_type_t md_alg;
-
-    status = psa_rsa_decode_md_type( alg, hash_length, &md_alg );
-    if( status != PSA_SUCCESS )
-        return( status );
-
-    if( signature_size < mbedtls_rsa_get_len( rsa ) )
-        return( PSA_ERROR_BUFFER_TOO_SMALL );
-
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN)
-    if( PSA_ALG_IS_RSA_PKCS1V15_SIGN( alg ) )
-    {
-        mbedtls_rsa_set_padding( rsa, MBEDTLS_RSA_PKCS_V15,
-                                 MBEDTLS_MD_NONE );
-        ret = mbedtls_rsa_pkcs1_sign( rsa,
-                                      mbedtls_psa_get_random,
-                                      MBEDTLS_PSA_RANDOM_STATE,
-                                      MBEDTLS_RSA_PRIVATE,
-                                      md_alg,
-                                      (unsigned int) hash_length,
-                                      hash,
-                                      signature );
+        return( mbedtls_psa_rsa_sign_hash(
+                    attributes,
+                    key_buffer, key_buffer_size,
+                    alg, hash, hash_length,
+                    signature, signature_size, signature_length ) );
     }
     else
-#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN */
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS)
-    if( PSA_ALG_IS_RSA_PSS( alg ) )
-    {
-        mbedtls_rsa_set_padding( rsa, MBEDTLS_RSA_PKCS_V21, md_alg );
-        ret = mbedtls_rsa_rsassa_pss_sign( rsa,
-                                           mbedtls_psa_get_random,
-                                           MBEDTLS_PSA_RANDOM_STATE,
-                                           MBEDTLS_RSA_PRIVATE,
-                                           MBEDTLS_MD_NONE,
-                                           (unsigned int) hash_length,
-                                           hash,
-                                           signature );
-    }
-    else
-#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS */
-    {
-        return( PSA_ERROR_INVALID_ARGUMENT );
-    }
-
-    if( ret == 0 )
-        *signature_length = mbedtls_rsa_get_len( rsa );
-    return( mbedtls_to_psa_error( ret ) );
-}
-
-static psa_status_t psa_rsa_verify( mbedtls_rsa_context *rsa,
-                                    psa_algorithm_t alg,
-                                    const uint8_t *hash,
-                                    size_t hash_length,
-                                    const uint8_t *signature,
-                                    size_t signature_length )
-{
-    psa_status_t status;
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_md_type_t md_alg;
-
-    status = psa_rsa_decode_md_type( alg, hash_length, &md_alg );
-    if( status != PSA_SUCCESS )
-        return( status );
-
-    if( signature_length != mbedtls_rsa_get_len( rsa ) )
-        return( PSA_ERROR_INVALID_SIGNATURE );
-
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN)
-    if( PSA_ALG_IS_RSA_PKCS1V15_SIGN( alg ) )
-    {
-        mbedtls_rsa_set_padding( rsa, MBEDTLS_RSA_PKCS_V15,
-                                 MBEDTLS_MD_NONE );
-        ret = mbedtls_rsa_pkcs1_verify( rsa,
-                                        mbedtls_psa_get_random,
-                                        MBEDTLS_PSA_RANDOM_STATE,
-                                        MBEDTLS_RSA_PUBLIC,
-                                        md_alg,
-                                        (unsigned int) hash_length,
-                                        hash,
-                                        signature );
-    }
-    else
-#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN */
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS)
-    if( PSA_ALG_IS_RSA_PSS( alg ) )
-    {
-        mbedtls_rsa_set_padding( rsa, MBEDTLS_RSA_PKCS_V21, md_alg );
-        ret = mbedtls_rsa_rsassa_pss_verify( rsa,
-                                             mbedtls_psa_get_random,
-                                             MBEDTLS_PSA_RANDOM_STATE,
-                                             MBEDTLS_RSA_PUBLIC,
-                                             MBEDTLS_MD_NONE,
-                                             (unsigned int) hash_length,
-                                             hash,
-                                             signature );
-    }
-    else
-#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS */
-    {
-        return( PSA_ERROR_INVALID_ARGUMENT );
-    }
-
-    /* Mbed TLS distinguishes "invalid padding" from "valid padding but
-     * the rest of the signature is invalid". This has little use in
-     * practice and PSA doesn't report this distinction. */
-    if( ret == MBEDTLS_ERR_RSA_INVALID_PADDING )
-        return( PSA_ERROR_INVALID_SIGNATURE );
-    return( mbedtls_to_psa_error( ret ) );
-}
 #endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) ||
         * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) */
-
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
-/* `ecp` cannot be const because `ecp->grp` needs to be non-const
- * for mbedtls_ecdsa_sign() and mbedtls_ecdsa_sign_det()
- * (even though these functions don't modify it). */
-static psa_status_t psa_ecdsa_sign( mbedtls_ecp_keypair *ecp,
-                                    psa_algorithm_t alg,
-                                    const uint8_t *hash,
-                                    size_t hash_length,
-                                    uint8_t *signature,
-                                    size_t signature_size,
-                                    size_t *signature_length )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_mpi r, s;
-    size_t curve_bytes = PSA_BITS_TO_BYTES( ecp->grp.pbits );
-    mbedtls_mpi_init( &r );
-    mbedtls_mpi_init( &s );
-
-    if( signature_size < 2 * curve_bytes )
+    if( PSA_KEY_TYPE_IS_ECC( attributes->core.type ) )
     {
-        ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL;
-        goto cleanup;
-    }
-
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
-    if( PSA_ALG_DSA_IS_DETERMINISTIC( alg ) )
-    {
-        psa_algorithm_t hash_alg = PSA_ALG_SIGN_GET_HASH( alg );
-        const mbedtls_md_info_t *md_info = mbedtls_md_info_from_psa( hash_alg );
-        mbedtls_md_type_t md_alg = mbedtls_md_get_type( md_info );
-        MBEDTLS_MPI_CHK( mbedtls_ecdsa_sign_det_ext( &ecp->grp, &r, &s,
-                                                     &ecp->d, hash,
-                                                     hash_length, md_alg,
-                                                     mbedtls_psa_get_random,
-                                                     MBEDTLS_PSA_RANDOM_STATE ) );
+        if( PSA_ALG_IS_ECDSA( alg ) )
+        {
+            return( mbedtls_psa_ecdsa_sign_hash(
+                        attributes,
+                        key_buffer, key_buffer_size,
+                        alg, hash, hash_length,
+                        signature, signature_size, signature_length ) );
+        }
+        else
+        {
+            return( PSA_ERROR_INVALID_ARGUMENT );
+        }
     }
     else
-#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) */
-    {
-        (void) alg;
-        MBEDTLS_MPI_CHK( mbedtls_ecdsa_sign( &ecp->grp, &r, &s, &ecp->d,
-                                             hash, hash_length,
-                                             mbedtls_psa_get_random,
-                                             MBEDTLS_PSA_RANDOM_STATE ) );
-    }
-
-    MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &r,
-                                               signature,
-                                               curve_bytes ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &s,
-                                               signature + curve_bytes,
-                                               curve_bytes ) );
-
-cleanup:
-    mbedtls_mpi_free( &r );
-    mbedtls_mpi_free( &s );
-    if( ret == 0 )
-        *signature_length = 2 * curve_bytes;
-    return( mbedtls_to_psa_error( ret ) );
-}
-
-static psa_status_t psa_ecdsa_verify( mbedtls_ecp_keypair *ecp,
-                                      const uint8_t *hash,
-                                      size_t hash_length,
-                                      const uint8_t *signature,
-                                      size_t signature_length )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_mpi r, s;
-    size_t curve_bytes = PSA_BITS_TO_BYTES( ecp->grp.pbits );
-    mbedtls_mpi_init( &r );
-    mbedtls_mpi_init( &s );
-
-    if( signature_length != 2 * curve_bytes )
-        return( PSA_ERROR_INVALID_SIGNATURE );
-
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &r,
-                                              signature,
-                                              curve_bytes ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &s,
-                                              signature + curve_bytes,
-                                              curve_bytes ) );
-
-    /* Check whether the public part is loaded. If not, load it. */
-    if( mbedtls_ecp_is_zero( &ecp->Q ) )
-    {
-        MBEDTLS_MPI_CHK(
-            mbedtls_ecp_mul( &ecp->grp, &ecp->Q, &ecp->d, &ecp->grp.G,
-                             mbedtls_psa_get_random, MBEDTLS_PSA_RANDOM_STATE ) );
-    }
-
-    ret = mbedtls_ecdsa_verify( &ecp->grp, hash, hash_length,
-                                &ecp->Q, &r, &s );
-
-cleanup:
-    mbedtls_mpi_free( &r );
-    mbedtls_mpi_free( &s );
-    return( mbedtls_to_psa_error( ret ) );
-}
 #endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
         * defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) */
+    {
+        (void)attributes;
+        (void)key_buffer;
+        (void)key_buffer_size;
+        (void)alg;
+        (void)hash;
+        (void)hash_length;
+        (void)signature;
+        (void)signature_size;
+        (void)signature_length;
+
+        return( PSA_ERROR_NOT_SUPPORTED );
+    }
+}
 
 psa_status_t psa_sign_hash( mbedtls_svc_key_id_t key,
                             psa_algorithm_t alg,
@@ -3581,83 +3365,14 @@
         goto exit;
     }
 
-    /* Try any of the available accelerators first */
-    status = psa_driver_wrapper_sign_hash( slot,
-                                           alg,
-                                           hash,
-                                           hash_length,
-                                           signature,
-                                           signature_size,
-                                           signature_length );
-    if( status != PSA_ERROR_NOT_SUPPORTED ||
-        psa_key_lifetime_is_external( slot->attr.lifetime ) )
-        goto exit;
+    psa_key_attributes_t attributes = {
+      .core = slot->attr
+    };
 
-    /* If the operation was not supported by any accelerator, try fallback. */
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS)
-    if( slot->attr.type == PSA_KEY_TYPE_RSA_KEY_PAIR )
-    {
-        mbedtls_rsa_context *rsa = NULL;
-
-        status = mbedtls_psa_rsa_load_representation( slot->attr.type,
-                                                      slot->key.data,
-                                                      slot->key.bytes,
-                                                      &rsa );
-        if( status != PSA_SUCCESS )
-            goto exit;
-
-        status = psa_rsa_sign( rsa,
-                               alg,
-                               hash, hash_length,
-                               signature, signature_size,
-                               signature_length );
-
-        mbedtls_rsa_free( rsa );
-        mbedtls_free( rsa );
-    }
-    else
-#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) ||
-        * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) */
-    if( PSA_KEY_TYPE_IS_ECC( slot->attr.type ) )
-    {
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
-        if(
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
-            PSA_ALG_IS_ECDSA( alg )
-#else
-            PSA_ALG_IS_RANDOMIZED_ECDSA( alg )
-#endif
-            )
-        {
-            mbedtls_ecp_keypair *ecp = NULL;
-            status = mbedtls_psa_ecp_load_representation( slot->attr.type,
-                                                          slot->attr.bits,
-                                                          slot->key.data,
-                                                          slot->key.bytes,
-                                                          &ecp );
-            if( status != PSA_SUCCESS )
-                goto exit;
-            status = psa_ecdsa_sign( ecp,
-                                     alg,
-                                     hash, hash_length,
-                                     signature, signature_size,
-                                     signature_length );
-            mbedtls_ecp_keypair_free( ecp );
-            mbedtls_free( ecp );
-        }
-        else
-#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
-        * defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) */
-        {
-            status = PSA_ERROR_INVALID_ARGUMENT;
-        }
-    }
-    else
-    {
-        status = PSA_ERROR_NOT_SUPPORTED;
-    }
+    status = psa_driver_wrapper_sign_hash(
+        &attributes, slot->key.data, slot->key.bytes,
+        alg, hash, hash_length,
+        signature, signature_size, signature_length );
 
 exit:
     /* Fill the unused part of the output buffer (the whole buffer on error,
@@ -3677,6 +3392,58 @@
     return( ( status == PSA_SUCCESS ) ? unlock_status : status );
 }
 
+psa_status_t psa_verify_hash_internal(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length )
+{
+#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \
+    defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS)
+    if( PSA_KEY_TYPE_IS_RSA( attributes->core.type ) )
+    {
+        return( mbedtls_psa_rsa_verify_hash(
+                    attributes,
+                    key_buffer, key_buffer_size,
+                    alg, hash, hash_length,
+                    signature, signature_length ) );
+    }
+    else
+#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) ||
+        * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) */
+    if( PSA_KEY_TYPE_IS_ECC( attributes->core.type ) )
+    {
+#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
+    defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
+        if( PSA_ALG_IS_ECDSA( alg ) )
+        {
+            return( mbedtls_psa_ecdsa_verify_hash(
+                        attributes,
+                        key_buffer, key_buffer_size,
+                        alg, hash, hash_length,
+                        signature, signature_length ) );
+        }
+        else
+#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
+        * defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) */
+        {
+            return( PSA_ERROR_INVALID_ARGUMENT );
+        }
+    }
+    else
+    {
+        (void)key_buffer;
+        (void)key_buffer_size;
+        (void)alg;
+        (void)hash;
+        (void)hash_length;
+        (void)signature;
+        (void)signature_length;
+
+        return( PSA_ERROR_NOT_SUPPORTED );
+    }
+}
+
 psa_status_t psa_verify_hash( mbedtls_svc_key_id_t key,
                               psa_algorithm_t alg,
                               const uint8_t *hash,
@@ -3694,76 +3461,15 @@
     if( status != PSA_SUCCESS )
         return( status );
 
-    /* Try any of the available accelerators first */
-    status = psa_driver_wrapper_verify_hash( slot,
-                                             alg,
-                                             hash,
-                                             hash_length,
-                                             signature,
-                                             signature_length );
-    if( status != PSA_ERROR_NOT_SUPPORTED ||
-        psa_key_lifetime_is_external( slot->attr.lifetime ) )
-        goto exit;
+    psa_key_attributes_t attributes = {
+      .core = slot->attr
+    };
 
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS)
-    if( PSA_KEY_TYPE_IS_RSA( slot->attr.type ) )
-    {
-        mbedtls_rsa_context *rsa = NULL;
+    status = psa_driver_wrapper_verify_hash(
+        &attributes, slot->key.data, slot->key.bytes,
+        alg, hash, hash_length,
+        signature, signature_length );
 
-        status = mbedtls_psa_rsa_load_representation( slot->attr.type,
-                                                      slot->key.data,
-                                                      slot->key.bytes,
-                                                      &rsa );
-        if( status != PSA_SUCCESS )
-            goto exit;
-
-        status = psa_rsa_verify( rsa,
-                                 alg,
-                                 hash, hash_length,
-                                 signature, signature_length );
-        mbedtls_rsa_free( rsa );
-        mbedtls_free( rsa );
-        goto exit;
-    }
-    else
-#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) ||
-        * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) */
-    if( PSA_KEY_TYPE_IS_ECC( slot->attr.type ) )
-    {
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
-        if( PSA_ALG_IS_ECDSA( alg ) )
-        {
-            mbedtls_ecp_keypair *ecp = NULL;
-            status = mbedtls_psa_ecp_load_representation( slot->attr.type,
-                                                          slot->attr.bits,
-                                                          slot->key.data,
-                                                          slot->key.bytes,
-                                                          &ecp );
-            if( status != PSA_SUCCESS )
-                goto exit;
-            status = psa_ecdsa_verify( ecp,
-                                       hash, hash_length,
-                                       signature, signature_length );
-            mbedtls_ecp_keypair_free( ecp );
-            mbedtls_free( ecp );
-            goto exit;
-        }
-        else
-#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
-        * defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) */
-        {
-            status =  PSA_ERROR_INVALID_ARGUMENT;
-            goto exit;
-        }
-    }
-    else
-    {
-        status = PSA_ERROR_NOT_SUPPORTED;
-    }
-
-exit:
     unlock_status = psa_unlock_key_slot( slot );
 
     return( ( status == PSA_SUCCESS ) ? unlock_status : status );
diff --git a/library/psa_crypto_core.h b/library/psa_crypto_core.h
index 9f10868..da69044 100644
--- a/library/psa_crypto_core.h
+++ b/library/psa_crypto_core.h
@@ -30,6 +30,8 @@
 #include "psa/crypto.h"
 #include "psa/crypto_se_driver.h"
 
+#include <mbedtls/md_internal.h>
+
 /** The data structure representing a key slot, containing key material
  * and metadata for one key.
  */
@@ -212,6 +214,15 @@
  */
 psa_status_t mbedtls_to_psa_error( int ret );
 
+/** Get Mbed TLS MD information of a hash algorithm given its PSA identifier
+ *
+ * \param[in] alg  PSA hash algorithm identifier
+ *
+ * \return  The Mbed TLS MD information of the hash algorithm. \c NULL if the
+ *          PSA hash algorithm is not supported.
+ */
+const mbedtls_md_info_t *mbedtls_md_info_from_psa( psa_algorithm_t alg );
+
 /** Import a key in binary format.
  *
  * \note The signature of this function is that of a PSA driver
@@ -324,4 +335,80 @@
                                         size_t key_buffer_size,
                                         size_t *key_buffer_length );
 
+/** Sign an already-calculated hash with a private key.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       sign_hash entry point. This function behaves as a sign_hash
+ *       entry point as defined in the PSA driver interface specification for
+ *       transparent drivers.
+ *
+ * \param[in]  attributes       The attributes of the key to use for the
+ *                              operation.
+ * \param[in]  key_buffer       The buffer containing the key context.
+ *                              format.
+ * \param[in]  key_buffer_size  Size of the \p key_buffer buffer in bytes.
+ * \param[in]  alg              A signature algorithm that is compatible with
+ *                              the type of the key.
+ * \param[in]  hash             The hash or message to sign.
+ * \param[in]  hash_length      Size of the \p hash buffer in bytes.
+ * \param[out] signature        Buffer where the signature is to be written.
+ * \param[in]  signature_size   Size of the \p signature buffer in bytes.
+ * \param[out] signature_length On success, the number of bytes
+ *                              that make up the returned signature value.
+ *
+ * \retval #PSA_SUCCESS
+ * \retval #PSA_ERROR_BUFFER_TOO_SMALL
+ *         The size of the \p signature buffer is too small. You can
+ *         determine a sufficient buffer size by calling
+ *         #PSA_SIGN_OUTPUT_SIZE(\c key_type, \c key_bits, \p alg)
+ *         where \c key_type and \c key_bits are the type and bit-size
+ *         respectively of the key.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY
+ */
+psa_status_t psa_sign_hash_internal(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length );
+
+/**
+ * \brief Verify the signature a hash or short message using a public key.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       verify_hash entry point. This function behaves as a verify_hash
+ *       entry point as defined in the PSA driver interface specification for
+ *       transparent drivers.
+ *
+ * \param[in]  attributes       The attributes of the key to use for the
+ *                              operation.
+ * \param[in]  key_buffer       The buffer containing the key context.
+ *                              format.
+ * \param[in]  key_buffer_size  Size of the \p key_buffer buffer in bytes.
+ * \param[in]  alg              A signature algorithm that is compatible with
+ *                              the type of the key.
+ * \param[in]  hash             The hash or message whose signature is to be
+ *                              verified.
+ * \param[in]  hash_length      Size of the \p hash buffer in bytes.
+ * \param[in]  signature        Buffer containing the signature to verify.
+ * \param[in]  signature_length Size of the \p signature buffer in bytes.
+ *
+ * \retval #PSA_SUCCESS
+ *         The signature is valid.
+ * \retval #PSA_ERROR_INVALID_SIGNATURE
+ *         The calculation was performed successfully, but the passed
+ *         signature is not a valid signature.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ */
+psa_status_t psa_verify_hash_internal(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length );
+
 #endif /* PSA_CRYPTO_CORE_H */
diff --git a/library/psa_crypto_driver_wrappers.c b/library/psa_crypto_driver_wrappers.c
index 3cb7557..6cf23ce 100644
--- a/library/psa_crypto_driver_wrappers.c
+++ b/library/psa_crypto_driver_wrappers.c
@@ -57,21 +57,18 @@
 #endif
 
 /* Start delegation functions */
-psa_status_t psa_driver_wrapper_sign_hash( psa_key_slot_t *slot,
-                                           psa_algorithm_t alg,
-                                           const uint8_t *hash,
-                                           size_t hash_length,
-                                           uint8_t *signature,
-                                           size_t signature_size,
-                                           size_t *signature_length )
+psa_status_t psa_driver_wrapper_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length )
 {
-#if defined(PSA_CRYPTO_DRIVER_PRESENT)
     /* Try dynamically-registered SE interface first */
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
     const psa_drv_se_t *drv;
     psa_drv_se_context_t *drv_context;
 
-    if( psa_get_se_driver( slot->attr.lifetime, &drv, &drv_context ) )
+    if( psa_get_se_driver( attributes->core.lifetime, &drv, &drv_context ) )
     {
         if( drv->asymmetric == NULL ||
             drv->asymmetric->p_sign == NULL )
@@ -79,32 +76,27 @@
             /* Key is defined in SE, but we have no way to exercise it */
             return( PSA_ERROR_NOT_SUPPORTED );
         }
-        return( drv->asymmetric->p_sign( drv_context,
-                                         psa_key_slot_get_slot_number( slot ),
-                                         alg,
-                                         hash, hash_length,
-                                         signature, signature_size,
-                                         signature_length ) );
+        return( drv->asymmetric->p_sign(
+                    drv_context, *( (psa_key_slot_number_t *)key_buffer ),
+                    alg, hash, hash_length,
+                    signature, signature_size, signature_length ) );
     }
 #endif /* PSA_CRYPTO_SE_C */
 
-    /* Then try accelerator API */
-#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
-    psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
-    psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
-    psa_key_attributes_t attributes = {
-      .core = slot->attr
-    };
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    psa_key_location_t location =
+        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
 
     switch( location )
     {
         case PSA_KEY_LOCATION_LOCAL_STORAGE:
             /* Key is stored in the slot in export representation, so
              * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
-            status = test_transparent_signature_sign_hash( &attributes,
-                                                           slot->key.data,
-                                                           slot->key.bytes,
+            status = test_transparent_signature_sign_hash( attributes,
+                                                           key_buffer,
+                                                           key_buffer_size,
                                                            alg,
                                                            hash,
                                                            hash_length,
@@ -115,14 +107,25 @@
             if( status != PSA_ERROR_NOT_SUPPORTED )
                 return( status );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
             /* Fell through, meaning no accelerator supports this operation */
-            return( PSA_ERROR_NOT_SUPPORTED );
+            return( psa_sign_hash_internal( attributes,
+                                            key_buffer,
+                                            key_buffer_size,
+                                            alg,
+                                            hash,
+                                            hash_length,
+                                            signature,
+                                            signature_size,
+                                            signature_length ) );
+
         /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
         case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
-            return( test_opaque_signature_sign_hash( &attributes,
-                                                     slot->key.data,
-                                                     slot->key.bytes,
+            return( test_opaque_signature_sign_hash( attributes,
+                                                     key_buffer,
+                                                     key_buffer_size,
                                                      alg,
                                                      hash,
                                                      hash_length,
@@ -130,40 +133,26 @@
                                                      signature_size,
                                                      signature_length ) );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
         default:
             /* Key is declared with a lifetime not known to us */
-            return( status );
+            (void)status;
+            return( PSA_ERROR_INVALID_ARGUMENT );
     }
-#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
-    return( PSA_ERROR_NOT_SUPPORTED );
-#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
-#else /* PSA_CRYPTO_DRIVER_PRESENT */
-    (void)slot;
-    (void)alg;
-    (void)hash;
-    (void)hash_length;
-    (void)signature;
-    (void)signature_size;
-    (void)signature_length;
-
-    return( PSA_ERROR_NOT_SUPPORTED );
-#endif /* PSA_CRYPTO_DRIVER_PRESENT */
 }
 
-psa_status_t psa_driver_wrapper_verify_hash( psa_key_slot_t *slot,
-                                             psa_algorithm_t alg,
-                                             const uint8_t *hash,
-                                             size_t hash_length,
-                                             const uint8_t *signature,
-                                             size_t signature_length )
+psa_status_t psa_driver_wrapper_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length )
 {
-#if defined(PSA_CRYPTO_DRIVER_PRESENT)
     /* Try dynamically-registered SE interface first */
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
     const psa_drv_se_t *drv;
     psa_drv_se_context_t *drv_context;
 
-    if( psa_get_se_driver( slot->attr.lifetime, &drv, &drv_context ) )
+    if( psa_get_se_driver( attributes->core.lifetime, &drv, &drv_context ) )
     {
         if( drv->asymmetric == NULL ||
             drv->asymmetric->p_verify == NULL )
@@ -171,31 +160,27 @@
             /* Key is defined in SE, but we have no way to exercise it */
             return( PSA_ERROR_NOT_SUPPORTED );
         }
-        return( drv->asymmetric->p_verify( drv_context,
-                                           psa_key_slot_get_slot_number( slot ),
-                                           alg,
-                                           hash, hash_length,
-                                           signature, signature_length ) );
+        return( drv->asymmetric->p_verify(
+                    drv_context, *( (psa_key_slot_number_t *)key_buffer ),
+                    alg, hash, hash_length,
+                    signature, signature_length ) );
     }
 #endif /* PSA_CRYPTO_SE_C */
 
-    /* Then try accelerator API */
-#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
-    psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
-    psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
-    psa_key_attributes_t attributes = {
-      .core = slot->attr
-    };
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    psa_key_location_t location =
+        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
 
     switch( location )
     {
         case PSA_KEY_LOCATION_LOCAL_STORAGE:
             /* Key is stored in the slot in export representation, so
              * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
-            status = test_transparent_signature_verify_hash( &attributes,
-                                                             slot->key.data,
-                                                             slot->key.bytes,
+            status = test_transparent_signature_verify_hash( attributes,
+                                                             key_buffer,
+                                                             key_buffer_size,
                                                              alg,
                                                              hash,
                                                              hash_length,
@@ -205,37 +190,36 @@
             if( status != PSA_ERROR_NOT_SUPPORTED )
                 return( status );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
-            /* Fell through, meaning no accelerator supports this operation */
-            return( PSA_ERROR_NOT_SUPPORTED );
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+            return( psa_verify_hash_internal( attributes,
+                                              key_buffer,
+                                              key_buffer_size,
+                                              alg,
+                                              hash,
+                                              hash_length,
+                                              signature,
+                                              signature_length ) );
+
         /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
 #if defined(PSA_CRYPTO_DRIVER_TEST)
         case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
-            return( test_opaque_signature_verify_hash( &attributes,
-                                                       slot->key.data,
-                                                       slot->key.bytes,
+            return( test_opaque_signature_verify_hash( attributes,
+                                                       key_buffer,
+                                                       key_buffer_size,
                                                        alg,
                                                        hash,
                                                        hash_length,
                                                        signature,
                                                        signature_length ) );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
         default:
             /* Key is declared with a lifetime not known to us */
-            return( status );
+            (void)status;
+            return( PSA_ERROR_INVALID_ARGUMENT );
     }
-#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
-    return( PSA_ERROR_NOT_SUPPORTED );
-#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
-#else /* PSA_CRYPTO_DRIVER_PRESENT */
-    (void)slot;
-    (void)alg;
-    (void)hash;
-    (void)hash_length;
-    (void)signature;
-    (void)signature_length;
-
-    return( PSA_ERROR_NOT_SUPPORTED );
-#endif /* PSA_CRYPTO_DRIVER_PRESENT */
 }
 
 /** Get the key buffer size for the key material of a generated key in the
diff --git a/library/psa_crypto_driver_wrappers.h b/library/psa_crypto_driver_wrappers.h
index ad16cdd..22d22d6 100644
--- a/library/psa_crypto_driver_wrappers.h
+++ b/library/psa_crypto_driver_wrappers.h
@@ -28,20 +28,17 @@
 /*
  * Signature functions
  */
-psa_status_t psa_driver_wrapper_sign_hash( psa_key_slot_t *slot,
-                                           psa_algorithm_t alg,
-                                           const uint8_t *hash,
-                                           size_t hash_length,
-                                           uint8_t *signature,
-                                           size_t signature_size,
-                                           size_t *signature_length );
+psa_status_t psa_driver_wrapper_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length );
 
-psa_status_t psa_driver_wrapper_verify_hash( psa_key_slot_t *slot,
-                                             psa_algorithm_t alg,
-                                             const uint8_t *hash,
-                                             size_t hash_length,
-                                             const uint8_t *signature,
-                                             size_t signature_length );
+psa_status_t psa_driver_wrapper_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length );
 
 /*
  * Key handling functions
diff --git a/library/psa_crypto_ecp.c b/library/psa_crypto_ecp.c
index 23ec6ac..75ab169 100644
--- a/library/psa_crypto_ecp.c
+++ b/library/psa_crypto_ecp.c
@@ -35,6 +35,7 @@
 #define mbedtls_free   free
 #endif
 
+#include <mbedtls/ecdsa.h>
 #include <mbedtls/ecp.h>
 #include <mbedtls/error.h>
 
@@ -50,11 +51,25 @@
 #define BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY  1
 #endif
 
+#if ( defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||  \
+      ( defined(PSA_CRYPTO_DRIVER_TEST) &&       \
+        defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) &&  \
+        defined(MBEDTLS_ECDSA_C) ) )
+#define BUILTIN_ALG_ECDSA 1
+#endif
+
+#if ( defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) ||  \
+      ( defined(PSA_CRYPTO_DRIVER_TEST) &&                     \
+        defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA) &&  \
+        defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECDSA_DETERMINISTIC) ) )
+#define BUILTIN_ALG_DETERMINISTIC_ECDSA 1
+#endif
+
 #if defined(BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \
     defined(BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
+    defined(BUILTIN_ALG_ECDSA) || \
+    defined(BUILTIN_ALG_DETERMINISTIC_ECDSA) || \
+    defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH)
 psa_status_t mbedtls_psa_ecp_load_representation(
     psa_key_type_t type, size_t curve_bits,
     const uint8_t *data, size_t data_length,
@@ -167,9 +182,9 @@
 }
 #endif /* defined(BUILTIN_KEY_TYPE_ECC_KEY_PAIR) ||
         * defined(BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) ||
-        * defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
-        * defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH) ||
-        * defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) */
+        * defined(BUILTIN_ALG_ECDSA) ||
+        * defined(BUILTIN_ALG_DETERMINISTIC_ECDSA) ||
+        * defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH) */
 
 #if defined(BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \
     defined(BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY)
@@ -337,6 +352,148 @@
 }
 #endif /* defined(BUILTIN_KEY_TYPE_ECC_KEY_PAIR) */
 
+/****************************************************************/
+/* ECDSA sign/verify */
+/****************************************************************/
+
+#if defined(BUILTIN_ALG_ECDSA) || \
+    defined(BUILTIN_ALG_DETERMINISTIC_ECDSA)
+static psa_status_t ecdsa_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length )
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    mbedtls_ecp_keypair *ecp = NULL;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    size_t curve_bytes;
+    mbedtls_mpi r, s;
+
+    status = mbedtls_psa_ecp_load_representation( attributes->core.type,
+                                                  attributes->core.bits,
+                                                  key_buffer,
+                                                  key_buffer_size,
+                                                  &ecp );
+    if( status != PSA_SUCCESS )
+        return( status );
+
+    curve_bytes = PSA_BITS_TO_BYTES( ecp->grp.pbits );
+    mbedtls_mpi_init( &r );
+    mbedtls_mpi_init( &s );
+
+    if( signature_size < 2 * curve_bytes )
+    {
+        ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL;
+        goto cleanup;
+    }
+
+    if( PSA_ALG_ECDSA_IS_DETERMINISTIC( alg ) )
+    {
+#if defined(BUILTIN_ALG_DETERMINISTIC_ECDSA)
+        psa_algorithm_t hash_alg = PSA_ALG_SIGN_GET_HASH( alg );
+        const mbedtls_md_info_t *md_info = mbedtls_md_info_from_psa( hash_alg );
+        mbedtls_md_type_t md_alg = mbedtls_md_get_type( md_info );
+        MBEDTLS_MPI_CHK( mbedtls_ecdsa_sign_det_ext(
+                             &ecp->grp, &r, &s,
+                             &ecp->d, hash,
+                             hash_length, md_alg,
+                             mbedtls_psa_get_random,
+                             MBEDTLS_PSA_RANDOM_STATE ) );
+#else
+       ret = MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE;
+       goto cleanup;
+#endif /* defined(BUILTIN_ALG_DETERMINISTIC_ECDSA) */
+    }
+    else
+    {
+        (void) alg;
+        MBEDTLS_MPI_CHK( mbedtls_ecdsa_sign( &ecp->grp, &r, &s, &ecp->d,
+                                             hash, hash_length,
+                                             mbedtls_psa_get_random,
+                                             MBEDTLS_PSA_RANDOM_STATE ) );
+    }
+
+    MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &r,
+                                               signature,
+                                               curve_bytes ) );
+    MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &s,
+                                               signature + curve_bytes,
+                                               curve_bytes ) );
+cleanup:
+    mbedtls_mpi_free( &r );
+    mbedtls_mpi_free( &s );
+    if( ret == 0 )
+        *signature_length = 2 * curve_bytes;
+
+    mbedtls_ecp_keypair_free( ecp );
+    mbedtls_free( ecp );
+
+    return( mbedtls_to_psa_error( ret ) );
+}
+
+static psa_status_t ecdsa_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length )
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    mbedtls_ecp_keypair *ecp = NULL;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    size_t curve_bytes;
+    mbedtls_mpi r, s;
+
+    (void)alg;
+
+    status = mbedtls_psa_ecp_load_representation( attributes->core.type,
+                                                  attributes->core.bits,
+                                                  key_buffer,
+                                                  key_buffer_size,
+                                                  &ecp );
+    if( status != PSA_SUCCESS )
+        return( status );
+
+    curve_bytes = PSA_BITS_TO_BYTES( ecp->grp.pbits );
+    mbedtls_mpi_init( &r );
+    mbedtls_mpi_init( &s );
+
+    if( signature_length != 2 * curve_bytes )
+    {
+        ret = MBEDTLS_ERR_ECP_VERIFY_FAILED;
+        goto cleanup;
+    }
+
+    MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &r,
+                                              signature,
+                                              curve_bytes ) );
+    MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &s,
+                                              signature + curve_bytes,
+                                              curve_bytes ) );
+
+    /* Check whether the public part is loaded. If not, load it. */
+    if( mbedtls_ecp_is_zero( &ecp->Q ) )
+    {
+        MBEDTLS_MPI_CHK(
+            mbedtls_ecp_mul( &ecp->grp, &ecp->Q, &ecp->d, &ecp->grp.G,
+                             mbedtls_psa_get_random, MBEDTLS_PSA_RANDOM_STATE ) );
+    }
+
+    ret = mbedtls_ecdsa_verify( &ecp->grp, hash, hash_length,
+                                &ecp->Q, &r, &s );
+
+cleanup:
+    mbedtls_mpi_free( &r );
+    mbedtls_mpi_free( &s );
+    mbedtls_ecp_keypair_free( ecp );
+    mbedtls_free( ecp );
+
+    return( mbedtls_to_psa_error( ret ) );
+}
+
+#endif /* defined(BUILTIN_ALG_ECDSA) || \
+        * defined(BUILTIN_ALG_DETERMINISTIC_ECDSA) */
+
 #if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \
     defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY)
 
@@ -373,6 +530,38 @@
 }
 #endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) */
 
+
+#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
+    defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
+
+psa_status_t mbedtls_psa_ecdsa_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length )
+{
+
+    return( ecdsa_sign_hash( attributes,
+                             key_buffer, key_buffer_size,
+                             alg, hash, hash_length,
+                             signature, signature_size, signature_length ) );
+}
+
+psa_status_t mbedtls_psa_ecdsa_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length )
+{
+    return( ecdsa_verify_hash( attributes,
+                               key_buffer, key_buffer_size,
+                               alg, hash, hash_length,
+                               signature, signature_length ) );
+}
+
+#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
+        * defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) */
+
 /*
  * BEYOND THIS POINT, TEST DRIVER ENTRY POINTS ONLY.
  */
@@ -417,6 +606,62 @@
 #endif /* defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR) &&
           defined(MBEDTLS_GENPRIME) */
 
+#if defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) || \
+    defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA)
+
+psa_status_t mbedtls_transparent_test_driver_ecdsa_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length )
+{
+
+#if defined(MBEDTLS_ECDSA_C)
+    return( ecdsa_sign_hash( attributes,
+                             key_buffer, key_buffer_size,
+                             alg, hash, hash_length,
+                             signature, signature_size, signature_length ) );
+#else
+    (void)attributes;
+    (void)key_buffer;
+    (void)key_buffer_size;
+    (void)alg;
+    (void)hash;
+    (void)hash_length;
+    (void)signature;
+    (void)signature_size;
+    (void)signature_length;
+    return( PSA_ERROR_NOT_SUPPORTED );
+#endif
+}
+
+psa_status_t mbedtls_transparent_test_driver_ecdsa_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length )
+{
+#if defined(MBEDTLS_ECDSA_C)
+    return( ecdsa_verify_hash( attributes,
+                               key_buffer, key_buffer_size,
+                               alg, hash, hash_length,
+                               signature, signature_length ) );
+#else
+    (void)attributes;
+    (void)key_buffer;
+    (void)key_buffer_size;
+    (void)alg;
+    (void)hash;
+    (void)hash_length;
+    (void)signature;
+    (void)signature_length;
+    return( PSA_ERROR_NOT_SUPPORTED );
+#endif
+}
+
+#endif /* defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) ||
+        * defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA) */
+
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 
 #endif /* MBEDTLS_PSA_CRYPTO_C */
diff --git a/library/psa_crypto_ecp.h b/library/psa_crypto_ecp.h
index 5c9b63c..0c2b928 100644
--- a/library/psa_crypto_ecp.h
+++ b/library/psa_crypto_ecp.h
@@ -146,6 +146,78 @@
     const psa_key_attributes_t *attributes,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length );
 
+/** Sign an already-calculated hash with ECDSA.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       sign_hash entry point. This function behaves as a sign_hash
+ *       entry point as defined in the PSA driver interface specification for
+ *       transparent drivers.
+ *
+ * \param[in]  attributes       The attributes of the ECC key to use for the
+ *                              operation.
+ * \param[in]  key_buffer       The buffer containing the ECC key context.
+ *                              format.
+ * \param[in]  key_buffer_size  Size of the \p key_buffer buffer in bytes.
+ * \param[in]  alg              Randomized or deterministic ECDSA algorithm.
+ * \param[in]  hash             The hash or message to sign.
+ * \param[in]  hash_length      Size of the \p hash buffer in bytes.
+ * \param[out] signature        Buffer where the signature is to be written.
+ * \param[in]  signature_size   Size of the \p signature buffer in bytes.
+ * \param[out] signature_length On success, the number of bytes
+ *                              that make up the returned signature value.
+ *
+ * \retval #PSA_SUCCESS
+ * \retval #PSA_ERROR_BUFFER_TOO_SMALL
+ *         The size of the \p signature buffer is too small. You can
+ *         determine a sufficient buffer size by calling
+ *         #PSA_SIGN_OUTPUT_SIZE(\c PSA_KEY_TYPE_ECC_KEY_PAIR, \c key_bits,
+ *         \p alg) where \c key_bits is the bit-size of the ECC key.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY
+ */
+psa_status_t mbedtls_psa_ecdsa_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length );
+
+/**
+ * \brief Verify an ECDSA hash or short message signature.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       verify_hash entry point. This function behaves as a verify_hash
+ *       entry point as defined in the PSA driver interface specification for
+ *       transparent drivers.
+ *
+ * \param[in]  attributes       The attributes of the ECC key to use for the
+ *                              operation.
+ * \param[in]  key_buffer       The buffer containing the ECC key context.
+ *                              format.
+ * \param[in]  key_buffer_size  Size of the \p key_buffer buffer in bytes.
+ * \param[in]  alg              Randomized or deterministic ECDSA algorithm.
+ * \param[in]  hash             The hash or message whose signature is to be
+ *                              verified.
+ * \param[in]  hash_length      Size of the \p hash buffer in bytes.
+ * \param[in]  signature        Buffer containing the signature to verify.
+ * \param[in]  signature_length Size of the \p signature buffer in bytes.
+ *
+ * \retval #PSA_SUCCESS
+ *         The signature is valid.
+ * \retval #PSA_ERROR_INVALID_SIGNATURE
+ *         The calculation was performed successfully, but the passed
+ *         signature is not a valid signature.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ */
+psa_status_t mbedtls_psa_ecdsa_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length );
 /*
  * BEYOND THIS POINT, TEST DRIVER ENTRY POINTS ONLY.
  */
@@ -167,6 +239,18 @@
     const psa_key_attributes_t *attributes,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length );
 
+psa_status_t mbedtls_transparent_test_driver_ecdsa_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length );
+
+psa_status_t mbedtls_transparent_test_driver_ecdsa_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length );
+
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 
 #endif /* PSA_CRYPTO_ECP_H */
diff --git a/library/psa_crypto_rsa.c b/library/psa_crypto_rsa.c
index fa64001..3e95d3a 100644
--- a/library/psa_crypto_rsa.c
+++ b/library/psa_crypto_rsa.c
@@ -52,10 +52,24 @@
 #define BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY  1
 #endif
 
+#if ( defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) ||  \
+      ( defined(PSA_CRYPTO_DRIVER_TEST) &&                   \
+        defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) &&  \
+        defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V15) ) )
+#define BUILTIN_ALG_RSA_PKCS1V15_SIGN  1
+#endif
+
+#if ( defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) ||  \
+      ( defined(PSA_CRYPTO_DRIVER_TEST) &&         \
+        defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS) &&  \
+        defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V21) ) )
+#define BUILTIN_ALG_RSA_PSS 1
+#endif
+
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) || \
+    defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \
+    defined(BUILTIN_ALG_RSA_PSS) || \
     defined(BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \
     defined(BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY)
 
@@ -131,9 +145,9 @@
     return( status );
 }
 #endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) ||
-        * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) ||
         * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP) ||
-        * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) ||
+        * defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) ||
+        * defined(BUILTIN_ALG_RSA_PSS) ||
         * defined(BUILTIN_KEY_TYPE_RSA_KEY_PAIR) ||
         * defined(BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */
 
@@ -319,6 +333,211 @@
 }
 #endif /* defined(BUILTIN_KEY_TYPE_RSA_KEY_PAIR) */
 
+/****************************************************************/
+/* Sign/verify hashes */
+/****************************************************************/
+
+#if defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) || defined(BUILTIN_ALG_RSA_PSS)
+
+/* Decode the hash algorithm from alg and store the mbedtls encoding in
+ * md_alg. Verify that the hash length is acceptable. */
+static psa_status_t psa_rsa_decode_md_type( psa_algorithm_t alg,
+                                            size_t hash_length,
+                                            mbedtls_md_type_t *md_alg )
+{
+    psa_algorithm_t hash_alg = PSA_ALG_SIGN_GET_HASH( alg );
+    const mbedtls_md_info_t *md_info = mbedtls_md_info_from_psa( hash_alg );
+    *md_alg = mbedtls_md_get_type( md_info );
+
+    /* The Mbed TLS RSA module uses an unsigned int for hash length
+     * parameters. Validate that it fits so that we don't risk an
+     * overflow later. */
+#if SIZE_MAX > UINT_MAX
+    if( hash_length > UINT_MAX )
+        return( PSA_ERROR_INVALID_ARGUMENT );
+#endif
+
+#if defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN)
+    /* For PKCS#1 v1.5 signature, if using a hash, the hash length
+     * must be correct. */
+    if( PSA_ALG_IS_RSA_PKCS1V15_SIGN( alg ) &&
+        alg != PSA_ALG_RSA_PKCS1V15_SIGN_RAW )
+    {
+        if( md_info == NULL )
+            return( PSA_ERROR_NOT_SUPPORTED );
+        if( mbedtls_md_get_size( md_info ) != hash_length )
+            return( PSA_ERROR_INVALID_ARGUMENT );
+    }
+#endif /* BUILTIN_ALG_RSA_PKCS1V15_SIGN */
+
+#if defined(BUILTIN_ALG_RSA_PSS)
+    /* PSS requires a hash internally. */
+    if( PSA_ALG_IS_RSA_PSS( alg ) )
+    {
+        if( md_info == NULL )
+            return( PSA_ERROR_NOT_SUPPORTED );
+    }
+#endif /* BUILTIN_ALG_RSA_PSS */
+
+    return( PSA_SUCCESS );
+}
+
+static psa_status_t rsa_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length )
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    mbedtls_rsa_context *rsa = NULL;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    mbedtls_md_type_t md_alg;
+
+    status = mbedtls_psa_rsa_load_representation( attributes->core.type,
+                                                  key_buffer,
+                                                  key_buffer_size,
+                                                  &rsa );
+    if( status != PSA_SUCCESS )
+        return( status );
+
+    status = psa_rsa_decode_md_type( alg, hash_length, &md_alg );
+    if( status != PSA_SUCCESS )
+        goto exit;
+
+    if( signature_size < mbedtls_rsa_get_len( rsa ) )
+    {
+        status = PSA_ERROR_BUFFER_TOO_SMALL;
+        goto exit;
+    }
+
+#if defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN)
+    if( PSA_ALG_IS_RSA_PKCS1V15_SIGN( alg ) )
+    {
+        mbedtls_rsa_set_padding( rsa, MBEDTLS_RSA_PKCS_V15,
+                                 MBEDTLS_MD_NONE );
+        ret = mbedtls_rsa_pkcs1_sign( rsa,
+                                      mbedtls_psa_get_random,
+                                      MBEDTLS_PSA_RANDOM_STATE,
+                                      MBEDTLS_RSA_PRIVATE,
+                                      md_alg,
+                                      (unsigned int) hash_length,
+                                      hash,
+                                      signature );
+    }
+    else
+#endif /* BUILTIN_ALG_RSA_PKCS1V15_SIGN */
+#if defined(BUILTIN_ALG_RSA_PSS)
+    if( PSA_ALG_IS_RSA_PSS( alg ) )
+    {
+        mbedtls_rsa_set_padding( rsa, MBEDTLS_RSA_PKCS_V21, md_alg );
+        ret = mbedtls_rsa_rsassa_pss_sign( rsa,
+                                           mbedtls_psa_get_random,
+                                           MBEDTLS_PSA_RANDOM_STATE,
+                                           MBEDTLS_RSA_PRIVATE,
+                                           MBEDTLS_MD_NONE,
+                                           (unsigned int) hash_length,
+                                           hash,
+                                           signature );
+    }
+    else
+#endif /* BUILTIN_ALG_RSA_PSS */
+    {
+        status = PSA_ERROR_INVALID_ARGUMENT;
+        goto exit;
+    }
+
+    if( ret == 0 )
+        *signature_length = mbedtls_rsa_get_len( rsa );
+    status = mbedtls_to_psa_error( ret );
+
+exit:
+    mbedtls_rsa_free( rsa );
+    mbedtls_free( rsa );
+
+    return( status );
+}
+
+static psa_status_t rsa_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length )
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    mbedtls_rsa_context *rsa = NULL;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    mbedtls_md_type_t md_alg;
+
+    status = mbedtls_psa_rsa_load_representation( attributes->core.type,
+                                                  key_buffer,
+                                                  key_buffer_size,
+                                                  &rsa );
+    if( status != PSA_SUCCESS )
+        goto exit;
+
+    status = psa_rsa_decode_md_type( alg, hash_length, &md_alg );
+    if( status != PSA_SUCCESS )
+        goto exit;
+
+    if( signature_length != mbedtls_rsa_get_len( rsa ) )
+    {
+        status = PSA_ERROR_INVALID_SIGNATURE;
+        goto exit;
+    }
+
+#if defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN)
+    if( PSA_ALG_IS_RSA_PKCS1V15_SIGN( alg ) )
+    {
+        mbedtls_rsa_set_padding( rsa, MBEDTLS_RSA_PKCS_V15,
+                                 MBEDTLS_MD_NONE );
+        ret = mbedtls_rsa_pkcs1_verify( rsa,
+                                        mbedtls_psa_get_random,
+                                        MBEDTLS_PSA_RANDOM_STATE,
+                                        MBEDTLS_RSA_PUBLIC,
+                                        md_alg,
+                                        (unsigned int) hash_length,
+                                        hash,
+                                        signature );
+    }
+    else
+#endif /* BUILTIN_ALG_RSA_PKCS1V15_SIGN */
+#if defined(BUILTIN_ALG_RSA_PSS)
+    if( PSA_ALG_IS_RSA_PSS( alg ) )
+    {
+        mbedtls_rsa_set_padding( rsa, MBEDTLS_RSA_PKCS_V21, md_alg );
+        ret = mbedtls_rsa_rsassa_pss_verify( rsa,
+                                             mbedtls_psa_get_random,
+                                             MBEDTLS_PSA_RANDOM_STATE,
+                                             MBEDTLS_RSA_PUBLIC,
+                                             MBEDTLS_MD_NONE,
+                                             (unsigned int) hash_length,
+                                             hash,
+                                             signature );
+    }
+    else
+#endif /* BUILTIN_ALG_RSA_PSS */
+    {
+        status = PSA_ERROR_INVALID_ARGUMENT;
+        goto exit;
+    }
+
+    /* Mbed TLS distinguishes "invalid padding" from "valid padding but
+     * the rest of the signature is invalid". This has little use in
+     * practice and PSA doesn't report this distinction. */
+    status = ( ret == MBEDTLS_ERR_RSA_INVALID_PADDING ) ?
+             PSA_ERROR_INVALID_SIGNATURE :
+             mbedtls_to_psa_error( ret );
+
+exit:
+    mbedtls_rsa_free( rsa );
+    mbedtls_free( rsa );
+
+    return( status );
+}
+
+#endif /* defined(BUILTIN_ALG_RSA_PKCS1V15_SIGN) ||
+        * defined(BUILTIN_ALG_RSA_PSS) */
+
 #if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \
     defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY)
 
@@ -355,6 +574,36 @@
 }
 #endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) */
 
+#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \
+    defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS)
+psa_status_t mbedtls_psa_rsa_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length )
+{
+    return( rsa_sign_hash(
+                attributes,
+                key_buffer, key_buffer_size,
+                alg, hash, hash_length,
+                signature, signature_size, signature_length ) );
+}
+
+psa_status_t mbedtls_psa_rsa_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length )
+{
+    return( rsa_verify_hash(
+                attributes,
+                key_buffer, key_buffer_size,
+                alg, hash, hash_length,
+                signature, signature_length ) );
+}
+#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) ||
+        * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PSS) */
+
 /*
  * BEYOND THIS POINT, TEST DRIVER ENTRY POINTS ONLY.
  */
@@ -397,6 +646,63 @@
 }
 #endif /* defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR) */
 
+#if defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) || \
+    defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS)
+psa_status_t mbedtls_transparent_test_driver_rsa_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length )
+{
+#if defined(MBEDTLS_RSA_C) && \
+    (defined(MBEDTLS_PKCS1_V15) || defined(MBEDTLS_PKCS1_V21))
+    return( rsa_sign_hash(
+                attributes,
+                key_buffer, key_buffer_size,
+                alg, hash, hash_length,
+                signature, signature_size, signature_length ) );
+#else
+    (void)attributes;
+    (void)key_buffer;
+    (void)key_buffer_size;
+    (void)alg;
+    (void)hash;
+    (void)hash_length;
+    (void)signature;
+    (void)signature_size;
+    (void)signature_length;
+    return( PSA_ERROR_NOT_SUPPORTED );
+#endif
+}
+
+psa_status_t mbedtls_transparent_test_driver_rsa_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length )
+{
+#if defined(MBEDTLS_RSA_C) && \
+    (defined(MBEDTLS_PKCS1_V15) || defined(MBEDTLS_PKCS1_V21))
+    return( rsa_verify_hash(
+                attributes,
+                key_buffer, key_buffer_size,
+                alg, hash, hash_length,
+                signature, signature_length ) );
+#else
+    (void)attributes;
+    (void)key_buffer;
+    (void)key_buffer_size;
+    (void)alg;
+    (void)hash;
+    (void)hash_length;
+    (void)signature;
+    (void)signature_length;
+    return( PSA_ERROR_NOT_SUPPORTED );
+#endif
+}
+#endif /* defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) ||
+        * defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS) */
+
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 
 #endif /* MBEDTLS_PSA_CRYPTO_C */
diff --git a/library/psa_crypto_rsa.h b/library/psa_crypto_rsa.h
index 08182a7..41a90f7 100644
--- a/library/psa_crypto_rsa.h
+++ b/library/psa_crypto_rsa.h
@@ -137,6 +137,81 @@
     const psa_key_attributes_t *attributes,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length );
 
+/** Sign an already-calculated hash with an RSA private key.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       sign_hash entry point. This function behaves as a sign_hash
+ *       entry point as defined in the PSA driver interface specification for
+ *       transparent drivers.
+ *
+ * \param[in]  attributes       The attributes of the RSA key to use for the
+ *                              operation.
+ * \param[in]  key_buffer       The buffer containing the RSA key context.
+ *                              format.
+ * \param[in]  key_buffer_size  Size of the \p key_buffer buffer in bytes.
+ * \param[in]  alg              A signature algorithm that is compatible with
+ *                              an RSA key.
+ * \param[in]  hash             The hash or message to sign.
+ * \param[in]  hash_length      Size of the \p hash buffer in bytes.
+ * \param[out] signature        Buffer where the signature is to be written.
+ * \param[in]  signature_size   Size of the \p signature buffer in bytes.
+ * \param[out] signature_length On success, the number of bytes
+ *                              that make up the returned signature value.
+ *
+ * \retval #PSA_SUCCESS
+ * \retval #PSA_ERROR_BUFFER_TOO_SMALL
+ *         The size of the \p signature buffer is too small. You can
+ *         determine a sufficient buffer size by calling
+ *         #PSA_SIGN_OUTPUT_SIZE(\c PSA_KEY_TYPE_RSA_KEY_PAIR, \c key_bits,
+ *         \p alg) where \c key_bits is the bit-size of the RSA key.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY
+ */
+psa_status_t mbedtls_psa_rsa_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length );
+
+/**
+ * \brief Verify the signature a hash or short message using a public RSA key.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       verify_hash entry point. This function behaves as a verify_hash
+ *       entry point as defined in the PSA driver interface specification for
+ *       transparent drivers.
+ *
+ * \param[in]  attributes       The attributes of the RSA key to use for the
+ *                              operation.
+ * \param[in]  key_buffer       The buffer containing the RSA key context.
+ *                              format.
+ * \param[in]  key_buffer_size  Size of the \p key_buffer buffer in bytes.
+ * \param[in]  alg              A signature algorithm that is compatible with
+ *                              an RSA key.
+ * \param[in]  hash             The hash or message whose signature is to be
+ *                              verified.
+ * \param[in]  hash_length      Size of the \p hash buffer in bytes.
+ * \param[in]  signature        Buffer containing the signature to verify.
+ * \param[in]  signature_length Size of the \p signature buffer in bytes.
+ *
+ * \retval #PSA_SUCCESS
+ *         The signature is valid.
+ * \retval #PSA_ERROR_INVALID_SIGNATURE
+ *         The calculation was performed successfully, but the passed
+ *         signature is not a valid signature.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ */
+psa_status_t mbedtls_psa_rsa_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length );
+
 /*
  * BEYOND THIS POINT, TEST DRIVER ENTRY POINTS ONLY.
  */
@@ -158,6 +233,18 @@
     const psa_key_attributes_t *attributes,
     uint8_t *key, size_t key_size, size_t *key_length );
 
+psa_status_t mbedtls_transparent_test_driver_rsa_sign_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    uint8_t *signature, size_t signature_size, size_t *signature_length );
+
+psa_status_t mbedtls_transparent_test_driver_rsa_verify_hash(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *key_buffer, size_t key_buffer_size,
+    psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+    const uint8_t *signature, size_t signature_length );
+
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 
 #endif /* PSA_CRYPTO_RSA_H */
diff --git a/library/psa_its_file.c b/library/psa_its_file.c
index 2fbff20..7798da6 100644
--- a/library/psa_its_file.c
+++ b/library/psa_its_file.c
@@ -47,7 +47,7 @@
 #define PSA_ITS_STORAGE_PREFIX ""
 #endif
 
-#define PSA_ITS_STORAGE_FILENAME_PATTERN "%08lx%08lx"
+#define PSA_ITS_STORAGE_FILENAME_PATTERN "%08x%08x"
 #define PSA_ITS_STORAGE_SUFFIX ".psa_its"
 #define PSA_ITS_STORAGE_FILENAME_LENGTH         \
     ( sizeof( PSA_ITS_STORAGE_PREFIX ) - 1 + /*prefix without terminating 0*/ \
@@ -87,8 +87,8 @@
     mbedtls_snprintf( filename, PSA_ITS_STORAGE_FILENAME_LENGTH,
                       "%s" PSA_ITS_STORAGE_FILENAME_PATTERN "%s",
                       PSA_ITS_STORAGE_PREFIX,
-                      (unsigned long) ( uid >> 32 ),
-                      (unsigned long) ( uid & 0xffffffff ),
+                      (unsigned) ( uid >> 32 ),
+                      (unsigned) ( uid & 0xffffffff ),
                       PSA_ITS_STORAGE_SUFFIX );
 }
 
diff --git a/library/ssl_cli.c b/library/ssl_cli.c
index a8331d9..55a8e61 100644
--- a/library/ssl_cli.c
+++ b/library/ssl_cli.c
@@ -685,7 +685,7 @@
         return( 0 );
 
     MBEDTLS_SSL_DEBUG_MSG( 3,
-        ( "sending session ticket of length %d", tlen ) );
+        ( "sending session ticket of length %" MBEDTLS_PRINTF_SIZET, tlen ) );
 
     memcpy( p, ssl->session_negotiate->ticket, tlen );
 
@@ -905,7 +905,8 @@
     *p++ = (unsigned char)( t >>  8 );
     *p++ = (unsigned char)( t       );
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, current time: %lu", t ) );
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, current time: %" MBEDTLS_PRINTF_LONGLONG,
+                                (long long) t ) );
 #else
     if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 )
         return( ret );
@@ -1114,7 +1115,7 @@
     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_MSG( 3, ( "client hello, session id len.: %" MBEDTLS_PRINTF_SIZET, n ) );
     MBEDTLS_SSL_DEBUG_BUF( 3,   "client hello, session id", buf + 39, n );
 
     /*
@@ -1182,7 +1183,7 @@
             continue;
 
         MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, add ciphersuite: %#04x (%s)",
-                                    ciphersuites[i], ciphersuite_info->name ) );
+                                    (unsigned int)ciphersuites[i], ciphersuite_info->name ) );
 
 #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
     defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
@@ -1197,7 +1198,7 @@
     }
 
     MBEDTLS_SSL_DEBUG_MSG( 3,
-        ( "client hello, got %d ciphersuites (excluding SCSVs)", n ) );
+        ( "client hello, got %" MBEDTLS_PRINTF_SIZET " ciphersuites (excluding SCSVs)", n ) );
 
     /*
      * Add TLS_EMPTY_RENEGOTIATION_INFO_SCSV
@@ -1420,7 +1421,7 @@
     /* olen unused if all extensions are disabled */
     ((void) olen);
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, total extension length: %d",
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, total extension length: %" MBEDTLS_PRINTF_SIZET,
                                 ext_len ) );
 
     if( ext_len > 0 )
@@ -2167,10 +2168,10 @@
     }
 
     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]       ) ) );
+                                     ( (unsigned long) buf[2] << 24 ) |
+                                     ( (unsigned long) buf[3] << 16 ) |
+                                     ( (unsigned long) buf[4] <<  8 ) |
+                                     ( (unsigned long) buf[5]       ) ) );
 
     memcpy( ssl->handshake->randbytes + 32, buf + 2, 32 );
 
@@ -2253,7 +2254,7 @@
     if( ssl->handshake->ciphersuite_info == NULL )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1,
-            ( "ciphersuite info for %04x not found", i ) );
+            ( "ciphersuite info for %04x not found", (unsigned int)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 );
@@ -2261,7 +2262,7 @@
 
     mbedtls_ssl_optimize_checksum( ssl, ssl->handshake->ciphersuite_info );
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) );
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %" MBEDTLS_PRINTF_SIZET, n ) );
     MBEDTLS_SSL_DEBUG_BUF( 3,   "server hello, session id", buf + 35, n );
 
     /*
@@ -2304,7 +2305,7 @@
     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, chosen ciphersuite: %04x", (unsigned) i ) );
     MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: %d",
                                 buf[37 + n] ) );
 
@@ -2373,7 +2374,7 @@
     ext = buf + 40 + n;
 
     MBEDTLS_SSL_DEBUG_MSG( 2,
-        ( "server hello, total extension length: %d", ext_len ) );
+        ( "server hello, total extension length: %" MBEDTLS_PRINTF_SIZET, ext_len ) );
 
     while( ext_len )
     {
@@ -2537,7 +2538,7 @@
 
         default:
             MBEDTLS_SSL_DEBUG_MSG( 3,
-                ( "unknown extension found: %d (ignoring)", ext_id ) );
+                ( "unknown extension found: %u (ignoring)", ext_id ) );
         }
 
         ext_len -= 4 + ext_size;
@@ -2628,7 +2629,7 @@
 
     if( ssl->handshake->dhm_ctx.len * 8 < ssl->conf->dhm_min_bitlen )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "DHM prime too short: %d < %d",
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "DHM prime too short: %" MBEDTLS_PRINTF_SIZET " < %u",
                                     ssl->handshake->dhm_ctx.len * 8,
                                     ssl->conf->dhm_min_bitlen ) );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
@@ -4347,7 +4348,7 @@
         return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET );
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %d", ticket_len ) );
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %" MBEDTLS_PRINTF_SIZET, ticket_len ) );
 
     /* We're not waiting for a NewSessionTicket message any more */
     ssl->handshake->new_session_ticket = 0;
diff --git a/library/ssl_msg.c b/library/ssl_msg.c
index 72f09bb..54a7be0 100644
--- a/library/ssl_msg.c
+++ b/library/ssl_msg.c
@@ -283,8 +283,8 @@
     }
 
     ssl->handshake->retransmit_timeout = new_timeout;
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %d millisecs",
-                        ssl->handshake->retransmit_timeout ) );
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %lu millisecs",
+                        (unsigned long) ssl->handshake->retransmit_timeout ) );
 
     return( 0 );
 }
@@ -292,8 +292,8 @@
 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 ) );
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %lu millisecs",
+                        (unsigned long) ssl->handshake->retransmit_timeout ) );
 }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
@@ -623,9 +623,10 @@
 
     if( rec->data_len > MBEDTLS_SSL_OUT_CONTENT_LEN )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Record content %u too large, maximum %d",
-                                    (unsigned) rec->data_len,
-                                    MBEDTLS_SSL_OUT_CONTENT_LEN ) );
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Record content %" MBEDTLS_PRINTF_SIZET
+                                    " too large, maximum %" MBEDTLS_PRINTF_SIZET,
+                                    rec->data_len,
+                                    (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN ) );
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
     }
 
@@ -764,7 +765,7 @@
     {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
         size_t olen;
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
+        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %" MBEDTLS_PRINTF_SIZET ", "
                                     "including %d bytes of padding",
                                     rec->data_len, 0 ) );
 
@@ -842,7 +843,7 @@
                                dynamic_iv_is_explicit ? dynamic_iv_len : 0 );
         MBEDTLS_SSL_DEBUG_BUF( 4, "additional data used for AEAD",
                                add_data, add_data_len );
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
+        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %" MBEDTLS_PRINTF_SIZET ", "
                                     "including 0 bytes of padding",
                                     rec->data_len ) );
 
@@ -945,8 +946,9 @@
         }
 #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",
+        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %" MBEDTLS_PRINTF_SIZET ", "
+                            "including %" MBEDTLS_PRINTF_SIZET
+                            " bytes of IV and %" MBEDTLS_PRINTF_SIZET " bytes of padding",
                             rec->data_len, transform->ivlen,
                             padlen + 1 ) );
 
@@ -1366,7 +1368,8 @@
         {
             if( rec->data_len < dynamic_iv_len )
             {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < explicit_iv_len (%d) ",
+                MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%" MBEDTLS_PRINTF_SIZET
+                                            " ) < explicit_iv_len (%" MBEDTLS_PRINTF_SIZET ") ",
                                             rec->data_len,
                                             dynamic_iv_len ) );
                 return( MBEDTLS_ERR_SSL_INVALID_MAC );
@@ -1385,7 +1388,8 @@
         /* Check that there's space for the authentication tag. */
         if( rec->data_len < transform->taglen )
         {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < taglen (%d) ",
+            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%" MBEDTLS_PRINTF_SIZET
+                                        ") < taglen (%" MBEDTLS_PRINTF_SIZET ") ",
                                         rec->data_len,
                                         transform->taglen ) );
             return( MBEDTLS_ERR_SSL_INVALID_MAC );
@@ -1488,7 +1492,9 @@
         if( rec->data_len < minlen + transform->ivlen ||
             rec->data_len < minlen + transform->maclen + 1 )
         {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < max( ivlen(%d), maclen (%d) "
+            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%" MBEDTLS_PRINTF_SIZET
+                                        ") < max( ivlen(%" MBEDTLS_PRINTF_SIZET
+                                        "), maclen (%" MBEDTLS_PRINTF_SIZET ") "
                                 "+ 1 ) ( + expl IV )", rec->data_len,
                                 transform->ivlen,
                                 transform->maclen ) );
@@ -1554,7 +1560,8 @@
          * data_len >= minlen + ivlen ( = minlen or 2 * minlen ). */
         if( rec->data_len % transform->ivlen != 0 )
         {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) %% ivlen (%d) != 0",
+            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%" MBEDTLS_PRINTF_SIZET
+                                        ") %% ivlen (%" MBEDTLS_PRINTF_SIZET ") != 0",
                                         rec->data_len, transform->ivlen ) );
             return( MBEDTLS_ERR_SSL_INVALID_MAC );
         }
@@ -1624,7 +1631,9 @@
 #if defined(MBEDTLS_SSL_DEBUG_ALL)
             if( rec->data_len < transform->maclen + padlen + 1 )
             {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < maclen (%d) + padlen (%d)",
+                MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%" MBEDTLS_PRINTF_SIZET
+                                            ") < maclen (%" MBEDTLS_PRINTF_SIZET
+                                            ") + padlen (%" MBEDTLS_PRINTF_SIZET ")",
                                             rec->data_len,
                                             transform->maclen,
                                             padlen + 1 ) );
@@ -1653,8 +1662,8 @@
             if( padlen > transform->ivlen )
             {
 #if defined(MBEDTLS_SSL_DEBUG_ALL)
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding length: is %d, "
-                                            "should be no more than %d",
+                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding length: is %" MBEDTLS_PRINTF_SIZET ", "
+                                            "should be no more than %" MBEDTLS_PRINTF_SIZET,
                                             padlen, transform->ivlen ) );
 #endif
                 correct = 0;
@@ -1890,7 +1899,7 @@
 
     memcpy( msg_pre, ssl->out_msg, len_pre );
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "before compression: msglen = %d, ",
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "before compression: msglen = %" MBEDTLS_PRINTF_SIZET ", ",
                    ssl->out_msglen ) );
 
     MBEDTLS_SSL_DEBUG_BUF( 4, "before compression: output payload",
@@ -1911,7 +1920,7 @@
     ssl->out_msglen = out_buf_len -
                       ssl->transform_out->ctx_deflate.avail_out - bytes_written;
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "after compression: msglen = %d, ",
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "after compression: msglen = %" MBEDTLS_PRINTF_SIZET ", ",
                    ssl->out_msglen ) );
 
     MBEDTLS_SSL_DEBUG_BUF( 4, "after compression: output payload",
@@ -1942,7 +1951,7 @@
 
     memcpy( msg_pre, ssl->in_msg, len_pre );
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "before decompression: msglen = %d, ",
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "before decompression: msglen = %" MBEDTLS_PRINTF_SIZET ", ",
                    ssl->in_msglen ) );
 
     MBEDTLS_SSL_DEBUG_BUF( 4, "before decompression: input payload",
@@ -1963,7 +1972,7 @@
     ssl->in_msglen = in_buf_len -
                      ssl->transform_in->ctx_inflate.avail_out - header_bytes;
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "after decompression: msglen = %d, ",
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "after decompression: msglen = %" MBEDTLS_PRINTF_SIZET ", ",
                    ssl->in_msglen ) );
 
     MBEDTLS_SSL_DEBUG_BUF( 4, "after decompression: input payload",
@@ -2042,7 +2051,8 @@
 
             if( ssl->in_left != 0 )
             {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "next record in same datagram, offset: %d",
+                MBEDTLS_SSL_DEBUG_MSG( 2, ( "next record in same datagram, offset: %"
+                                            MBEDTLS_PRINTF_SIZET,
                                     ssl->next_record_offset ) );
                 memmove( ssl->in_hdr,
                          ssl->in_hdr + ssl->next_record_offset,
@@ -2052,7 +2062,8 @@
             ssl->next_record_offset = 0;
         }
 
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
+        MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %" MBEDTLS_PRINTF_SIZET
+                                    ", nb_want: %" MBEDTLS_PRINTF_SIZET,
                        ssl->in_left, nb_want ) );
 
         /*
@@ -2094,7 +2105,7 @@
             else
                 timeout = ssl->conf->read_timeout;
 
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "f_recv_timeout: %u ms", timeout ) );
+            MBEDTLS_SSL_DEBUG_MSG( 3, ( "f_recv_timeout: %lu ms", (unsigned long) timeout ) );
 
             if( ssl->f_recv_timeout != NULL )
                 ret = ssl->f_recv_timeout( ssl->p_bio, ssl->in_hdr, len,
@@ -2153,7 +2164,8 @@
     else
 #endif
     {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
+        MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %" MBEDTLS_PRINTF_SIZET
+                                    ", nb_want: %" MBEDTLS_PRINTF_SIZET,
                        ssl->in_left, nb_want ) );
 
         while( ssl->in_left < nb_want )
@@ -2177,7 +2189,8 @@
                 }
             }
 
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
+            MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %" MBEDTLS_PRINTF_SIZET
+                                        ", nb_want: %" MBEDTLS_PRINTF_SIZET,
                                         ssl->in_left, nb_want ) );
             MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret );
 
@@ -2190,8 +2203,8 @@
             if ( (size_t)ret > len || ( INT_MAX > SIZE_MAX && ret > (int)SIZE_MAX ) )
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1,
-                    ( "f_recv returned %d bytes but only %lu were requested",
-                    ret, (unsigned long)len ) );
+                    ( "f_recv returned %d bytes but only %" MBEDTLS_PRINTF_SIZET " were requested",
+                    ret, len ) );
                 return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
             }
 
@@ -2230,7 +2243,8 @@
 
     while( ssl->out_left > 0 )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "message length: %d, out_left: %d",
+        MBEDTLS_SSL_DEBUG_MSG( 2, ( "message length: %" MBEDTLS_PRINTF_SIZET
+                                    ", out_left: %" MBEDTLS_PRINTF_SIZET,
                        mbedtls_ssl_out_hdr_len( ssl ) + ssl->out_msglen, ssl->out_left ) );
 
         buf = ssl->out_hdr - ssl->out_left;
@@ -2244,8 +2258,8 @@
         if( (size_t)ret > ssl->out_left || ( INT_MAX > SIZE_MAX && ret > (int)SIZE_MAX ) )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1,
-                ( "f_send returned %d bytes but only %lu bytes were sent",
-                ret, (unsigned long)ssl->out_left ) );
+                ( "f_send returned %d bytes but only %" MBEDTLS_PRINTF_SIZET " bytes were sent",
+                ret, ssl->out_left ) );
             return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
         }
 
@@ -2286,14 +2300,15 @@
     /* 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",
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %" MBEDTLS_PRINTF_SIZET " 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_SSL_DEBUG_MSG( 1, ( "alloc %" MBEDTLS_PRINTF_SIZET " bytes failed",
+                                    ssl->out_msglen ) );
         mbedtls_free( msg );
         return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
     }
@@ -2699,9 +2714,10 @@
     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 ) );
+                                    "size %" MBEDTLS_PRINTF_SIZET
+                                    ", maximum %" MBEDTLS_PRINTF_SIZET,
+                                    ssl->out_msglen,
+                                    (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN ) );
         return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
     }
 
@@ -2728,9 +2744,9 @@
             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 ) ) );
+                              "size %" MBEDTLS_PRINTF_SIZET ", maximum %" MBEDTLS_PRINTF_SIZET,
+                               hs_len,
+                               (size_t) ( MBEDTLS_SSL_OUT_CONTENT_LEN - 12 ) ) );
                 return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
             }
 
@@ -2922,8 +2938,8 @@
         /* Now write the potentially updated record content type. */
         ssl->out_hdr[0] = (unsigned char) ssl->out_msgtype;
 
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "output record: msgtype = %d, "
-                                    "version = [%d:%d], msglen = %d",
+        MBEDTLS_SSL_DEBUG_MSG( 3, ( "output record: msgtype = %u, "
+                                    "version = [%u:%u], msglen = %" MBEDTLS_PRINTF_SIZET,
                                     ssl->out_hdr[0], ssl->out_hdr[1],
                                     ssl->out_hdr[2], len ) );
 
@@ -3119,7 +3135,7 @@
 {
     if( ssl->in_msglen < mbedtls_ssl_hs_hdr_len( ssl ) )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake message too short: %d",
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake message too short: %" MBEDTLS_PRINTF_SIZET,
                             ssl->in_msglen ) );
         return( MBEDTLS_ERR_SSL_INVALID_RECORD );
     }
@@ -3127,7 +3143,7 @@
     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",
+                        " %" MBEDTLS_PRINTF_SIZET ", type = %u, hslen = %" MBEDTLS_PRINTF_SIZET,
                         ssl->in_msglen, ssl->in_msg[0], ssl->in_hslen ) );
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
@@ -3163,7 +3179,7 @@
                 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",
+                                    "message_seq = %u, start_of_flight = %u",
                                     recv_msg_seq,
                                     ssl->handshake->in_flight_start_seq ) );
 
@@ -3176,7 +3192,7 @@
             else
             {
                 MBEDTLS_SSL_DEBUG_MSG( 2, ( "dropping out-of-sequence message: "
-                                    "message_seq = %d, expected = %d",
+                                    "message_seq = %u, expected = %u",
                                     recv_msg_seq,
                                     ssl->handshake->in_msg_seq ) );
             }
@@ -3746,8 +3762,8 @@
                        ( (size_t) buf[ rec_hdr_len_offset + 1 ] << 0 );
     MBEDTLS_SSL_DEBUG_BUF( 4, "input record header", buf, rec->data_offset );
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "input record: msgtype = %d, "
-                                "version = [%d:%d], msglen = %d",
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "input record: msgtype = %u, "
+                                "version = [%d:%d], msglen = %" MBEDTLS_PRINTF_SIZET,
                                 rec->type,
                                 major_ver, minor_ver, rec->data_len ) );
 
@@ -3790,8 +3806,8 @@
         if( rec_epoch != ssl->in_epoch )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "record from another epoch: "
-                                        "expected %d, received %d",
-                                        ssl->in_epoch, rec_epoch ) );
+                                        "expected %u, received %lu",
+                                        ssl->in_epoch, (unsigned long) rec_epoch ) );
 
             /* Records from the next epoch are considered for buffering
              * (concretely: early Finished messages). */
@@ -4325,31 +4341,41 @@
                     {
                         /* 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 ) );
+                        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future message of size %" MBEDTLS_PRINTF_SIZET
+                                                    " would exceed the compile-time limit %" MBEDTLS_PRINTF_SIZET
+                                                    " (already %" MBEDTLS_PRINTF_SIZET
+                                                    " bytes buffered) -- ignore\n",
+                             msg_len, (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
+                             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 ) );
+                        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future message of size %" MBEDTLS_PRINTF_SIZET
+                                                    " would exceed the compile-time limit %" MBEDTLS_PRINTF_SIZET
+                                                    " (already %" MBEDTLS_PRINTF_SIZET
+                                                    " bytes buffered) -- attempt to make space by freeing buffered future messages\n",
+                             msg_len, (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
+                             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 ) );
+                        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reassembly of next message of size %" MBEDTLS_PRINTF_SIZET
+                                                    " (%" MBEDTLS_PRINTF_SIZET " with bitmap) would exceed"
+                                                    " the compile-time limit %" MBEDTLS_PRINTF_SIZET
+                                                    " (already %" MBEDTLS_PRINTF_SIZET
+                                                    " bytes buffered) -- fail\n",
+                             msg_len,
+                             reassembly_buf_sz,
+                             (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
+                             hs->buffering.total_bytes_buffered ) );
                         ret = MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
                         goto exit;
                     }
                 }
 
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialize reassembly, total length = %d",
+                MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialize reassembly, total length = %" MBEDTLS_PRINTF_SIZET,
                                             msg_len ) );
 
                 hs_buf->data = mbedtls_calloc( 1, reassembly_buf_sz );
@@ -4395,7 +4421,8 @@
                 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",
+                MBEDTLS_SSL_DEBUG_MSG( 2, ( "adding fragment, offset = %" MBEDTLS_PRINTF_SIZET
+                                            ", length = %" MBEDTLS_PRINTF_SIZET,
                                             frag_off, frag_len ) );
                 memcpy( msg + frag_off, ssl->in_msg + 12, frag_len );
 
@@ -4622,15 +4649,18 @@
     if( rec->buf_len > ( 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) rec->buf_len, MBEDTLS_SSL_DTLS_MAX_BUFFERING,
-                        (unsigned) hs->buffering.total_bytes_buffered ) );
+        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future epoch record of size %" MBEDTLS_PRINTF_SIZET
+                                    " would exceed the compile-time limit %" MBEDTLS_PRINTF_SIZET
+                                    " (already %" MBEDTLS_PRINTF_SIZET
+                                    " bytes buffered) -- ignore\n",
+                        rec->buf_len, (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
+                        hs->buffering.total_bytes_buffered ) );
         return( 0 );
     }
 
     /* Buffer record */
     MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffer record from epoch %u",
-                                ssl->in_epoch + 1 ) );
+                                ssl->in_epoch + 1U ) );
     MBEDTLS_SSL_DEBUG_BUF( 3, "Buffered record", rec->buf, rec->buf_len );
 
     /* ssl_parse_record_header() only considers records
@@ -4903,7 +4933,7 @@
     {
         if( ssl->in_msglen != 1 )
         {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid CCS message, len: %d",
+            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid CCS message, len: %" MBEDTLS_PRINTF_SIZET,
                            ssl->in_msglen ) );
             return( MBEDTLS_ERR_SSL_INVALID_RECORD );
         }
@@ -4939,12 +4969,12 @@
             /* 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",
+            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid alert message, len: %" MBEDTLS_PRINTF_SIZET,
                            ssl->in_msglen ) );
             return( MBEDTLS_ERR_SSL_INVALID_RECORD );
         }
 
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "got an alert message, type: [%d:%d]",
+        MBEDTLS_SSL_DEBUG_MSG( 2, ( "got an alert message, type: [%u:%u]",
                        ssl->in_msg[0], ssl->in_msg[1] ) );
 
         /*
@@ -5771,7 +5801,8 @@
         if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "fragment larger than the (negotiated) "
-                                "maximum fragment length: %d > %d",
+                                "maximum fragment length: %" MBEDTLS_PRINTF_SIZET
+                                " > %" MBEDTLS_PRINTF_SIZET,
                                 len, max_len ) );
             return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
         }
diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index e33b828..807fb18 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -298,13 +298,13 @@
         {
             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 ) );
+                                        " match sig %u and hash %u",
+                                        (unsigned) sig_cur, (unsigned) md_cur ) );
         }
         else
         {
             MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext: "
-                                        "hash alg %d not supported", md_cur ) );
+                                        "hash alg %u not supported", (unsigned) md_cur ) );
         }
     }
 
@@ -633,7 +633,7 @@
     /* 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 ) );
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %" MBEDTLS_PRINTF_SIZET, len ) );
 
     if( len == 0 )
         return( 0 );
@@ -1048,7 +1048,7 @@
     }
 
     MBEDTLS_SSL_DEBUG_MSG( 3, ( "trying ciphersuite: %#04x (%s)",
-                                suite_id, suite_info->name ) );
+                                (unsigned int) suite_id, suite_info->name ) );
 
     if( suite_info->min_minor_ver > ssl->minor_ver ||
         suite_info->max_minor_ver < ssl->minor_ver )
@@ -1116,7 +1116,7 @@
             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 ) );
+                                        "for signature algorithm %u", (unsigned) sig_type ) );
             return( 0 );
         }
     }
@@ -1247,7 +1247,7 @@
     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",
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciph_len: %u, sess_len: %u, chal_len: %u",
                    ciph_len, sess_len, chal_len ) );
 
     /*
@@ -1629,7 +1629,7 @@
             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,
+                                    "%u (expected %u)", cli_msg_seq,
                                     ssl->handshake->in_msg_seq ) );
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
@@ -2073,7 +2073,7 @@
 #endif /* MBEDTLS_SSL_DTLS_SRTP */
 
             default:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)",
+                MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %u (ignoring)",
                                ext_id ) );
             }
 
@@ -2274,7 +2274,7 @@
         else
         {
             MBEDTLS_SSL_DEBUG_MSG( 3, ( "no hash algorithm for signature algorithm "
-                                        "%d - should not happen", sig_alg ) );
+                                        "%u - should not happen", (unsigned) sig_alg ) );
         }
     }
 #endif
@@ -2826,7 +2826,8 @@
     *p++ = (unsigned char)( t >>  8 );
     *p++ = (unsigned char)( t       );
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu", t ) );
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %" MBEDTLS_PRINTF_LONGLONG,
+                                (long long) t ) );
 #else
     if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 )
         return( ret );
@@ -2914,7 +2915,7 @@
     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_MSG( 3, ( "server hello, session id len.: %" MBEDTLS_PRINTF_SIZET, 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" ) );
@@ -2926,7 +2927,7 @@
     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 ) );
+                   (unsigned int) ssl->session_negotiate->compression ) );
 
     /* Do not write the extensions if the protocol is SSLv3 */
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
@@ -2995,7 +2996,8 @@
     ext_len += olen;
 #endif
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, total extension length: %d", ext_len ) );
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, total extension length: %" MBEDTLS_PRINTF_SIZET,
+                                ext_len ) );
 
     if( ext_len > 0 )
     {
@@ -3502,7 +3504,7 @@
             md_alg = MBEDTLS_MD_NONE;
         }
 
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "pick hash algorithm %d for signing", md_alg ) );
+        MBEDTLS_SSL_DEBUG_MSG( 3, ( "pick hash algorithm %u for signing", (unsigned) md_alg ) );
 
         /*
          * 2.2: Compute the hash to be signed
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 336cbea..e367fbd 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -283,7 +283,8 @@
             }
             else
             {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reallocating in_buf to %d", in_buf_new_len ) );
+                MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reallocating in_buf to %" MBEDTLS_PRINTF_SIZET,
+                                            in_buf_new_len ) );
                 modified = 1;
             }
         }
@@ -304,7 +305,8 @@
             }
             else
             {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reallocating out_buf to %d", out_buf_new_len ) );
+                MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reallocating out_buf to %" MBEDTLS_PRINTF_SIZET,
+                                            out_buf_new_len ) );
                 modified = 1;
             }
         }
@@ -961,7 +963,7 @@
     cipher_info = mbedtls_cipher_info_from_type( ciphersuite_info->cipher );
     if( cipher_info == NULL )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "cipher info for %d not found",
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "cipher info for %u not found",
                                     ciphersuite_info->cipher ) );
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
     }
@@ -969,8 +971,8 @@
     md_info = mbedtls_md_info_from_type( ciphersuite_info->mac );
     if( md_info == NULL )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "mbedtls_md info for %d not found",
-                            ciphersuite_info->mac ) );
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "mbedtls_md info for %u not found",
+                            (unsigned) ciphersuite_info->mac ) );
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
     }
 
@@ -2215,8 +2217,9 @@
         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 ) );
+            MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate too large, %" MBEDTLS_PRINTF_SIZET
+                                        " > %" MBEDTLS_PRINTF_SIZET,
+                           i + 3 + n, (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN ) );
             return( MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE );
         }
 
@@ -2707,8 +2710,8 @@
 #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 ) );
+        MBEDTLS_SSL_DEBUG_MSG( 3, ( "! Certificate verification flags %08x",
+                                    (unsigned int) ssl->session_negotiate->verify_result ) );
     }
     else
     {
@@ -2831,7 +2834,7 @@
     chain = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
     if( chain == NULL )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed",
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed",
                                     sizeof( mbedtls_x509_crt ) ) );
         mbedtls_ssl_send_alert_message( ssl,
                                         MBEDTLS_SSL_ALERT_LEVEL_FATAL,
@@ -3858,7 +3861,7 @@
     ssl->in_buf = mbedtls_calloc( 1, in_buf_len );
     if( ssl->in_buf == NULL )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", in_buf_len ) );
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", in_buf_len ) );
         ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
         goto error;
     }
@@ -3869,7 +3872,7 @@
     ssl->out_buf = mbedtls_calloc( 1, out_buf_len );
     if( ssl->out_buf == NULL )
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", out_buf_len ) );
+        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", out_buf_len ) );
         ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
         goto error;
     }
diff --git a/library/x509_crt.c b/library/x509_crt.c
index a623c57..0aa4f4c 100644
--- a/library/x509_crt.c
+++ b/library/x509_crt.c
@@ -1629,6 +1629,8 @@
     }
 #endif /* MBEDTLS_THREADING_C */
 
+    memset( &sb, 0, sizeof( sb ) );
+
     while( ( entry = readdir( dir ) ) != NULL )
     {
         snp_ret = mbedtls_snprintf( entry_name, sizeof entry_name,
diff --git a/programs/Makefile b/programs/Makefile
index e0a324f..9033875 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -3,8 +3,8 @@
 # To compile with PKCS11: add "-lpkcs11-helper" to LDFLAGS
 
 CFLAGS	?= -O2
-WARNING_CFLAGS ?= -Wall -Wextra
-WARNING_CXXFLAGS ?= -Wall -Wextra
+WARNING_CFLAGS ?= -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
+WARNING_CXXFLAGS ?= -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
 LDFLAGS ?=
 
 MBEDTLS_TEST_PATH:=../tests/src
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index d0758bc..3937981 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -1667,7 +1667,7 @@
                                                PSA_ALG_SHA_256 ) ) != 0 )
         {
             mbedtls_printf( " failed\n  !  "
-                            "mbedtls_pk_wrap_as_opaque returned -0x%x\n\n", -ret );
+                            "mbedtls_pk_wrap_as_opaque returned -0x%x\n\n", (unsigned int)  -ret );
             goto exit;
         }
     }
diff --git a/tests/Makefile b/tests/Makefile
index d11d904..d250d71 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -3,7 +3,7 @@
 # To compile with PKCS11: add "-lpkcs11-helper" to LDFLAGS
 
 CFLAGS	?= -O2
-WARNING_CFLAGS ?= -Wall -Wextra
+WARNING_CFLAGS ?= -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
 LDFLAGS ?=
 
 # Include public header files from ../include, test-specific header files
diff --git a/tests/include/test/drivers/signature.h b/tests/include/test/drivers/signature.h
index 8abcb11..e785151 100644
--- a/tests/include/test/drivers/signature.h
+++ b/tests/include/test/drivers/signature.h
@@ -40,7 +40,7 @@
     unsigned long hits;
 } test_driver_signature_hooks_t;
 
-#define TEST_DRIVER_SIGNATURE_INIT { NULL, 0, PSA_ERROR_NOT_SUPPORTED, 0 }
+#define TEST_DRIVER_SIGNATURE_INIT { NULL, 0, PSA_SUCCESS, 0 }
 static inline test_driver_signature_hooks_t test_driver_signature_hooks_init( void )
 {
     const test_driver_signature_hooks_t v = TEST_DRIVER_SIGNATURE_INIT;
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 43742fd..0e81d74 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -1450,7 +1450,17 @@
     scripts/config.py set MBEDTLS_PSA_CRYPTO_DRIVERS
     scripts/config.py unset MBEDTLS_USE_PSA_CRYPTO
     # Need to define the correct symbol and include the test driver header path in order to build with the test driver
-    make CC=gcc CFLAGS="$ASAN_CFLAGS -DPSA_CRYPTO_DRIVER_TEST -DMBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR -DMBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR -I../tests/include -O2" LDFLAGS="$ASAN_CFLAGS"
+    loc_cflags="$ASAN_CFLAGS -DPSA_CRYPTO_DRIVER_TEST"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_ALG_RSA_PSS"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_ALG_ECDSA"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA"
+    loc_cflags="${loc_cflags} -I../tests/include -O2"
+
+    make CC=gcc CFLAGS="$loc_cflags" LDFLAGS="$ASAN_CFLAGS"
+    unset loc_cflags
 
     msg "test: full + MBEDTLS_PSA_CRYPTO_CONFIG"
     make test
@@ -2218,7 +2228,17 @@
     msg "build: MBEDTLS_PSA_CRYPTO_DRIVERS w/ driver hooks"
     scripts/config.py set MBEDTLS_PSA_CRYPTO_DRIVERS
     # Need to define the correct symbol and include the test driver header path in order to build with the test driver
-    make CC=gcc CFLAGS="$ASAN_CFLAGS -DPSA_CRYPTO_DRIVER_TEST -DMBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR -DMBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR -I../tests/include -O2" LDFLAGS="$ASAN_CFLAGS"
+    loc_cflags="$ASAN_CFLAGS -DPSA_CRYPTO_DRIVER_TEST"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_ALG_RSA_PSS"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_ALG_ECDSA"
+    loc_cflags="${loc_cflags} -DMBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA"
+    loc_cflags="${loc_cflags} -I../tests/include -O2"
+
+    make CC=gcc CFLAGS="${loc_cflags}" LDFLAGS="$ASAN_CFLAGS"
+    unset loc_cflags
 
     msg "test: MBEDTLS_PSA_CRYPTO_DRIVERS, signature"
     make test
diff --git a/tests/src/drivers/signature.c b/tests/src/drivers/signature.c
index cea0351..47c6deb 100644
--- a/tests/src/drivers/signature.c
+++ b/tests/src/drivers/signature.c
@@ -28,6 +28,8 @@
 #if defined(MBEDTLS_PSA_CRYPTO_DRIVERS) && defined(PSA_CRYPTO_DRIVER_TEST)
 #include "psa/crypto.h"
 #include "psa_crypto_core.h"
+#include "psa_crypto_ecp.h"
+#include "psa_crypto_rsa.h"
 #include "mbedtls/ecp.h"
 
 #include "test/drivers/signature.h"
@@ -44,7 +46,7 @@
 
 psa_status_t test_transparent_signature_sign_hash(
     const psa_key_attributes_t *attributes,
-    const uint8_t *key, size_t key_length,
+    const uint8_t *key_buffer, size_t key_buffer_size,
     psa_algorithm_t alg,
     const uint8_t *hash, size_t hash_length,
     uint8_t *signature, size_t signature_size, size_t *signature_length )
@@ -64,85 +66,58 @@
         return( PSA_SUCCESS );
     }
 
-    psa_status_t status = PSA_ERROR_NOT_SUPPORTED;
+#if defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) || \
+    defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS)
+    if( attributes->core.type == PSA_KEY_TYPE_RSA_KEY_PAIR )
+    {
+        return( mbedtls_transparent_test_driver_rsa_sign_hash(
+                    attributes,
+                    key_buffer, key_buffer_size,
+                    alg, hash, hash_length,
+                    signature, signature_size, signature_length ) );
+    }
+    else
+#endif /* defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) ||
+        * defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS) */
 
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECDSA_DETERMINISTIC) && \
-    defined(MBEDTLS_SHA256_C)
-    if( alg != PSA_ALG_DETERMINISTIC_ECDSA( PSA_ALG_SHA_256 ) )
+#if defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) || \
+    defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA)
+    if( PSA_KEY_TYPE_IS_ECC( attributes->core.type ) )
+    {
+        if(
+#if defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA)
+            PSA_ALG_IS_ECDSA( alg )
+#else
+            PSA_ALG_IS_RANDOMIZED_ECDSA( alg )
+#endif
+            )
+        {
+            return( mbedtls_transparent_test_driver_ecdsa_sign_hash(
+                        attributes,
+                        key_buffer, key_buffer_size,
+                        alg, hash, hash_length,
+                        signature, signature_size, signature_length ) );
+        }
+        else
+        {
+            return( PSA_ERROR_INVALID_ARGUMENT );
+        }
+    }
+    else
+#endif /* defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) ||
+        * defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA) */
+    {
+        (void)attributes;
+        (void)key_buffer;
+        (void)key_buffer_size;
+        (void)alg;
+        (void)hash;
+        (void)hash_length;
+        (void)signature;
+        (void)signature_size;
+        (void)signature_length;
         return( PSA_ERROR_NOT_SUPPORTED );
-    mbedtls_ecp_group_id grp_id;
-    switch( psa_get_key_type( attributes ) )
-    {
-        case PSA_ECC_CURVE_SECP_R1:
-            switch( psa_get_key_bits( attributes ) )
-            {
-                case 256:
-                    grp_id = MBEDTLS_ECP_DP_SECP256R1;
-                    break;
-                case 384:
-                    grp_id = MBEDTLS_ECP_DP_SECP384R1;
-                    break;
-                case 521:
-                    grp_id = MBEDTLS_ECP_DP_SECP521R1;
-                    break;
-                default:
-                    return( PSA_ERROR_NOT_SUPPORTED );
-            }
-            break;
-        default:
-            return( PSA_ERROR_NOT_SUPPORTED );
     }
-
-    /* Beyond this point, the driver is actually doing the work of
-     * calculating the signature. */
-
-    status = PSA_ERROR_GENERIC_ERROR;
-    int ret = 0;
-    mbedtls_mpi r, s;
-    mbedtls_mpi_init( &r );
-    mbedtls_mpi_init( &s );
-    mbedtls_ecp_keypair ecp;
-    mbedtls_ecp_keypair_init( &ecp );
-    size_t curve_bytes = PSA_BITS_TO_BYTES( ecp.grp.pbits );
-
-    MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &ecp.grp, grp_id ) );
-    MBEDTLS_MPI_CHK( mbedtls_ecp_point_read_binary( &ecp.grp, &ecp.Q,
-                                                    key, key_length ) );
-
-    /* Code adapted from psa_ecdsa_sign() in psa_crypto.c. */
-    mbedtls_md_type_t md_alg = MBEDTLS_MD_SHA256;
-    if( signature_size < 2 * curve_bytes )
-    {
-        status = PSA_ERROR_BUFFER_TOO_SMALL;
-        goto cleanup;
-    }
-    MBEDTLS_MPI_CHK( mbedtls_ecdsa_sign_det( &ecp.grp, &r, &s, &ecp.d,
-                                  hash, hash_length, md_alg ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &r,
-                                               signature,
-                                               curve_bytes ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &s,
-                                               signature + curve_bytes,
-                                               curve_bytes ) );
-cleanup:
-    status = mbedtls_to_psa_error( ret );
-    mbedtls_mpi_free( &r );
-    mbedtls_mpi_free( &s );
-    mbedtls_ecp_keypair_free( &ecp );
-    if( status == PSA_SUCCESS )
-        *signature_length = 2 * curve_bytes;
-#else /* defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECDSA_DETERMINISTIC) && \
-         defined(MBEDTLS_SHA256_C) */
-    (void) attributes;
-    (void) key;
-    (void) key_length;
-    (void) alg;
-    (void) hash;
-    (void) hash_length;
-#endif /* defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECDSA_DETERMINISTIC) && \
-          defined(MBEDTLS_SHA256_C) */
-
-    return( status );
 }
 
 psa_status_t test_opaque_signature_sign_hash(
@@ -161,12 +136,13 @@
     (void) signature;
     (void) signature_size;
     (void) signature_length;
+
     return( PSA_ERROR_NOT_SUPPORTED );
 }
 
 psa_status_t test_transparent_signature_verify_hash(
     const psa_key_attributes_t *attributes,
-    const uint8_t *key, size_t key_length,
+    const uint8_t *key_buffer, size_t key_buffer_size,
     psa_algorithm_t alg,
     const uint8_t *hash, size_t hash_length,
     const uint8_t *signature, size_t signature_length )
@@ -176,98 +152,52 @@
     if( test_driver_signature_verify_hooks.forced_status != PSA_SUCCESS )
         return( test_driver_signature_verify_hooks.forced_status );
 
-    psa_status_t status = PSA_ERROR_NOT_SUPPORTED;
-
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECDSA_DETERMINISTIC) && \
-    defined(MBEDTLS_SHA256_C)
-    if( alg != PSA_ALG_DETERMINISTIC_ECDSA( PSA_ALG_SHA_256 ) )
-        return( PSA_ERROR_NOT_SUPPORTED );
-    mbedtls_ecp_group_id grp_id;
-    switch( psa_get_key_type( attributes ) )
+#if defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) || \
+    defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS)
+    if( PSA_KEY_TYPE_IS_RSA( attributes->core.type ) )
     {
-        case PSA_ECC_CURVE_SECP_R1:
-            switch( psa_get_key_bits( attributes ) )
-            {
-                case 256:
-                    grp_id = MBEDTLS_ECP_DP_SECP256R1;
-                    break;
-                case 384:
-                    grp_id = MBEDTLS_ECP_DP_SECP384R1;
-                    break;
-                case 521:
-                    grp_id = MBEDTLS_ECP_DP_SECP521R1;
-                    break;
-                default:
-                    return( PSA_ERROR_NOT_SUPPORTED );
-            }
-            break;
-        default:
-            return( PSA_ERROR_NOT_SUPPORTED );
+        return( mbedtls_transparent_test_driver_rsa_verify_hash(
+                    attributes,
+                    key_buffer, key_buffer_size,
+                    alg, hash, hash_length,
+                    signature, signature_length ) );
     }
-
-    /* Beyond this point, the driver is actually doing the work of
-     * calculating the signature. */
-
-    status = PSA_ERROR_GENERIC_ERROR;
-    int ret = 0;
-    mbedtls_mpi r, s;
-    mbedtls_mpi_init( &r );
-    mbedtls_mpi_init( &s );
-    mbedtls_ecp_keypair ecp;
-    mbedtls_ecp_keypair_init( &ecp );
-    mbedtls_test_rnd_pseudo_info rnd_info;
-    memset( &rnd_info, 0x5A, sizeof( mbedtls_test_rnd_pseudo_info ) );
-    size_t curve_bytes = PSA_BITS_TO_BYTES( ecp.grp.pbits );
-
-    MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &ecp.grp, grp_id ) );
-
-    /* Code adapted from psa_ecdsa_verify() in psa_crypto.c. */
-    if( signature_length < 2 * curve_bytes )
-    {
-        status = PSA_ERROR_BUFFER_TOO_SMALL;
-        goto cleanup;
-    }
-
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &r,
-                                              signature,
-                                              curve_bytes ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &s,
-                                              signature + curve_bytes,
-                                              curve_bytes ) );
-
-    if( PSA_KEY_TYPE_IS_PUBLIC_KEY( psa_get_key_type( attributes ) ) )
-        MBEDTLS_MPI_CHK( mbedtls_ecp_point_read_binary( &ecp.grp, &ecp.Q,
-                                                    key, key_length ) );
     else
+#endif /* defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN) ||
+        * defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS) */
+
+#if defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) || \
+    defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA)
+    if( PSA_KEY_TYPE_IS_ECC( attributes->core.type ) )
     {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ecp.d, key, key_length ) );
-        MBEDTLS_MPI_CHK(
-            mbedtls_ecp_mul( &ecp.grp, &ecp.Q, &ecp.d, &ecp.grp.G,
-                             &mbedtls_test_rnd_pseudo_rand,
-                             &rnd_info ) );
+        if( PSA_ALG_IS_ECDSA( alg ) )
+        {
+            return( mbedtls_transparent_test_driver_ecdsa_verify_hash(
+                        attributes,
+                        key_buffer, key_buffer_size,
+                        alg, hash, hash_length,
+                        signature, signature_length ) );
+        }
+        else
+        {
+            return( PSA_ERROR_INVALID_ARGUMENT );
+        }
     }
+    else
+#endif /* defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) ||
+        * defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA) */
+    {
+        (void)attributes;
+        (void)key_buffer;
+        (void)key_buffer_size;
+        (void)alg;
+        (void)hash;
+        (void)hash_length;
+        (void)signature;
+        (void)signature_length;
 
-    MBEDTLS_MPI_CHK( mbedtls_ecdsa_verify( &ecp.grp, hash, hash_length,
-                                &ecp.Q, &r, &s ) );
-cleanup:
-    status = mbedtls_to_psa_error( ret );
-    mbedtls_mpi_free( &r );
-    mbedtls_mpi_free( &s );
-    mbedtls_ecp_keypair_free( &ecp );
-#else /* defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECDSA_DETERMINISTIC) && \
-         defined(MBEDTLS_SHA256_C) */
-    (void) attributes;
-    (void) key;
-    (void) key_length;
-    (void) alg;
-    (void) hash;
-    (void) hash_length;
-    (void) signature;
-    (void) signature_length;
-#endif /* defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECDSA_DETERMINISTIC) && \
-          defined(MBEDTLS_SHA256_C) */
-
-    return( status );
+        return( PSA_ERROR_NOT_SUPPORTED );
+    }
 }
 
 psa_status_t test_opaque_signature_verify_hash(
diff --git a/tests/src/psa_exercise_key.c b/tests/src/psa_exercise_key.c
index a4f87eb..e7e6863 100644
--- a/tests/src/psa_exercise_key.c
+++ b/tests/src/psa_exercise_key.c
@@ -486,7 +486,7 @@
     private_key_type = psa_get_key_type( &attributes );
     key_bits = psa_get_key_bits( &attributes );
     public_key_type = PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR( private_key_type );
-    public_key_length = PSA_EXPORT_KEY_OUTPUT_SIZE( public_key_type, key_bits );
+    public_key_length = PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE( public_key_type, key_bits );
     ASSERT_ALLOC( public_key, public_key_length );
     PSA_ASSERT( psa_export_public_key( key, public_key, public_key_length,
                                        &public_key_length ) );
@@ -528,7 +528,7 @@
     private_key_type = psa_get_key_type( &attributes );
     key_bits = psa_get_key_bits( &attributes );
     public_key_type = PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR( private_key_type );
-    public_key_length = PSA_EXPORT_KEY_OUTPUT_SIZE( public_key_type, key_bits );
+    public_key_length = PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE( public_key_type, key_bits );
     ASSERT_ALLOC( public_key, public_key_length );
     PSA_ASSERT( psa_export_public_key( key,
                                        public_key, public_key_length,
@@ -537,6 +537,15 @@
     status = psa_raw_key_agreement( alg, key,
                                     public_key, public_key_length,
                                     output, sizeof( output ), &output_length );
+    if ( status == PSA_SUCCESS )
+    {
+        TEST_ASSERT( output_length <=
+                     PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE( private_key_type,
+                                                        key_bits ) );
+        TEST_ASSERT( output_length <=
+                     PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE );
+    }
+
 exit:
     /*
      * Key attributes may have been returned by psa_get_key_attributes()
@@ -644,6 +653,8 @@
         if( ! mbedtls_test_asn1_skip_integer( &p, end, 1, bits / 2 + 1, 0 ) )
             goto exit;
         TEST_EQUAL( p, end );
+
+        TEST_ASSERT( exported_length <= PSA_EXPORT_KEY_PAIR_MAX_SIZE );
     }
     else
 #endif /* MBEDTLS_RSA_C */
@@ -653,6 +664,8 @@
     {
         /* Just the secret value */
         TEST_EQUAL( exported_length, PSA_BITS_TO_BYTES( bits ) );
+
+        TEST_ASSERT( exported_length <= PSA_EXPORT_KEY_PAIR_MAX_SIZE );
     }
     else
 #endif /* MBEDTLS_ECP_C */
@@ -677,6 +690,12 @@
         if( ! mbedtls_test_asn1_skip_integer( &p, end, 2, bits, 1 ) )
             goto exit;
         TEST_EQUAL( p, end );
+
+
+        TEST_ASSERT( exported_length <=
+                     PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE( type, bits ) );
+        TEST_ASSERT( exported_length <=
+                     PSA_EXPORT_PUBLIC_KEY_MAX_SIZE );
     }
     else
 #endif /* MBEDTLS_RSA_C */
@@ -684,6 +703,12 @@
 #if defined(MBEDTLS_ECP_C)
     if( PSA_KEY_TYPE_IS_ECC_PUBLIC_KEY( type ) )
     {
+
+        TEST_ASSERT( exported_length <=
+                     PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE( type, bits ) );
+        TEST_ASSERT( exported_length <=
+                     PSA_EXPORT_PUBLIC_KEY_MAX_SIZE );
+
         if( PSA_KEY_TYPE_ECC_GET_FAMILY( type ) == PSA_ECC_FAMILY_MONTGOMERY )
         {
             /* The representation of an ECC Montgomery public key is
@@ -804,8 +829,8 @@
 
     public_type = PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(
         psa_get_key_type( &attributes ) );
-    exported_size = PSA_EXPORT_KEY_OUTPUT_SIZE( public_type,
-                                                psa_get_key_bits( &attributes ) );
+    exported_size = PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE( public_type,
+                                                       psa_get_key_bits( &attributes ) );
     ASSERT_ALLOC( exported, exported_size );
 
     PSA_ASSERT( psa_export_public_key( key,
diff --git a/tests/suites/test_suite_psa_crypto.data b/tests/suites/test_suite_psa_crypto.data
index 3824fa0..5e8b490 100644
--- a/tests/suites/test_suite_psa_crypto.data
+++ b/tests/suites/test_suite_psa_crypto.data
@@ -2158,9 +2158,13 @@
 sign_fail:PSA_KEY_TYPE_RSA_PUBLIC_KEY:"30818902818100af057d396ee84fb75fdbb5c2b13c7fe5a654aa8aa2470b541ee1feb0b12d25c79711531249e1129628042dbbb6c120d1443524ef4c0e6e1d8956eeb2077af12349ddeee54483bc06c2c61948cd02b202e796aebd94d3a7cbf859c2c1819c324cb82b9cd34ede263a2abffe4733f077869e8660f7d6834da53d690ef7985f6bc30203010001":PSA_ALG_RSA_PKCS1V15_SIGN_RAW:"9ac4335b469bbd791439248504dd0d49c71349a295fee5a1c68507f45a9e1c7b":72:PSA_ERROR_INVALID_ARGUMENT
 
 PSA sign: invalid algorithm for ECC key
-depends_on:PSA_WANT_ALG_RSA_PSS:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:MBEDTLS_PK_PARSE_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_C
+depends_on:PSA_WANT_ALG_RSA_PSS:PSA_WANT_ALG_SHA_256:PSA_WANT_ALG_ECDSA:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:MBEDTLS_PK_PARSE_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_MD_C
 sign_fail:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"ab45435712649cb30bbddac49197eebf2740ffc7f874d9244c3460f54f322d3a":PSA_ALG_RSA_PSS(PSA_ALG_SHA_256):"9ac4335b469bbd791439248504dd0d49c71349a295fee5a1c68507f45a9e1c7b":72:PSA_ERROR_INVALID_ARGUMENT
 
+PSA sign: deterministic ECDSA not supported
+depends_on:!PSA_WANT_ALG_DETERMINISTIC_ECDSA:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR:MBEDTLS_PK_PARSE_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_MD_C
+sign_fail:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"3f5d8d9be280b5696cc5cc9f94cf8af7e6b61dd6592b2ab2b3a4c607450417ec327dcdcaed7c10053d719a0574f0a76a":PSA_ALG_DETERMINISTIC_ECDSA( PSA_ALG_SHA_256 ):"2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824":96:PSA_ERROR_NOT_SUPPORTED
+
 PSA sign/verify: RSA PKCS#1 v1.5, raw
 depends_on:PSA_WANT_ALG_RSA_PKCS1V15_SIGN:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR:MBEDTLS_PK_PARSE_C:MBEDTLS_MD_C
 sign_verify:PSA_KEY_TYPE_RSA_KEY_PAIR:"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":PSA_ALG_RSA_PKCS1V15_SIGN_RAW:"616263"
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 55b9416..628380e 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -613,7 +613,10 @@
                         reexported, reexported_length );
         PSA_ASSERT( psa_destroy_key( key2 ) );
     }
-    TEST_ASSERT( exported_length <= PSA_EXPORT_KEY_OUTPUT_SIZE( type, psa_get_key_bits( &got_attributes ) ) );
+    TEST_ASSERT( exported_length <=
+                 PSA_EXPORT_KEY_OUTPUT_SIZE( type,
+                                             psa_get_key_bits( &got_attributes ) ) );
+    TEST_ASSERT( exported_length <= PSA_EXPORT_KEY_PAIR_MAX_SIZE );
 
 destroy:
     /* Destroy the key */
@@ -674,6 +677,10 @@
         bits = psa_get_key_bits( &attributes );
         TEST_ASSERT( expected_public_key->len <=
                      PSA_EXPORT_KEY_OUTPUT_SIZE( public_type, bits ) );
+        TEST_ASSERT( expected_public_key->len <=
+                     PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE( public_type, bits ) );
+        TEST_ASSERT( expected_public_key->len <=
+                     PSA_EXPORT_PUBLIC_KEY_MAX_SIZE );
         ASSERT_COMPARE( expected_public_key->x, expected_public_key->len,
                         exported, exported_length );
     }
@@ -2403,19 +2410,29 @@
         PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
     }
 
-    output_buffer_size = ( (size_t) input->len +
-                           PSA_BLOCK_CIPHER_BLOCK_LENGTH( key_type ) );
+    output_buffer_size = PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, input->len );
+    TEST_ASSERT( output_buffer_size <=
+                 PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( input->len ) );
     ASSERT_ALLOC( output, output_buffer_size );
 
     PSA_ASSERT( psa_cipher_update( &operation,
                                    input->x, input->len,
                                    output, output_buffer_size,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, input->len ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
     total_output_length += function_output_length;
+
     status = psa_cipher_finish( &operation,
                                 output + total_output_length,
                                 output_buffer_size - total_output_length,
                                 &function_output_length );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
     total_output_length += function_output_length;
 
     TEST_EQUAL( status, expected_status );
@@ -2471,8 +2488,9 @@
         PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
     }
 
-    output_buffer_size = ( (size_t) input->len +
-                           PSA_BLOCK_CIPHER_BLOCK_LENGTH( key_type ) );
+    output_buffer_size = PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, input->len );
+    TEST_ASSERT( output_buffer_size <=
+                 PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( input->len ) );
     ASSERT_ALLOC( output, output_buffer_size );
 
     TEST_ASSERT( first_part_size <= input->len );
@@ -2480,7 +2498,12 @@
                                    output, output_buffer_size,
                                    &function_output_length ) );
     TEST_ASSERT( function_output_length == output1_length );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size) );
     total_output_length += function_output_length;
+
     PSA_ASSERT( psa_cipher_update( &operation,
                                    input->x + first_part_size,
                                    input->len - first_part_size,
@@ -2488,11 +2511,22 @@
                                    output_buffer_size - total_output_length,
                                    &function_output_length ) );
     TEST_ASSERT( function_output_length == output2_length );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
+                                                alg,
+                                                input->len - first_part_size ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
     total_output_length += function_output_length;
+
     PSA_ASSERT( psa_cipher_finish( &operation,
                                    output + total_output_length,
                                    output_buffer_size - total_output_length,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
     total_output_length += function_output_length;
     PSA_ASSERT( psa_cipher_abort( &operation ) );
 
@@ -2544,8 +2578,9 @@
         PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
     }
 
-    output_buffer_size = ( (size_t) input->len +
-                           PSA_BLOCK_CIPHER_BLOCK_LENGTH( key_type ) );
+    output_buffer_size = PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, input->len );
+    TEST_ASSERT( output_buffer_size <=
+                 PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( input->len ) );
     ASSERT_ALLOC( output, output_buffer_size );
 
     TEST_ASSERT( first_part_size <= input->len );
@@ -2554,7 +2589,12 @@
                                    output, output_buffer_size,
                                    &function_output_length ) );
     TEST_ASSERT( function_output_length == output1_length );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size ) );
     total_output_length += function_output_length;
+
     PSA_ASSERT( psa_cipher_update( &operation,
                                    input->x + first_part_size,
                                    input->len - first_part_size,
@@ -2562,11 +2602,22 @@
                                    output_buffer_size - total_output_length,
                                    &function_output_length ) );
     TEST_ASSERT( function_output_length == output2_length );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
+                                                alg,
+                                                input->len - first_part_size ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
     total_output_length += function_output_length;
+
     PSA_ASSERT( psa_cipher_finish( &operation,
                                    output + total_output_length,
                                    output_buffer_size - total_output_length,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
     total_output_length += function_output_length;
     PSA_ASSERT( psa_cipher_abort( &operation ) );
 
@@ -2615,19 +2666,29 @@
         PSA_ASSERT( psa_cipher_set_iv( &operation, iv->x, iv->len ) );
     }
 
-    output_buffer_size = ( (size_t) input->len +
-                           PSA_BLOCK_CIPHER_BLOCK_LENGTH( key_type ) );
+    output_buffer_size = PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, input->len );
+    TEST_ASSERT( output_buffer_size <=
+                 PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( input->len ) );
     ASSERT_ALLOC( output, output_buffer_size );
 
     PSA_ASSERT( psa_cipher_update( &operation,
                                    input->x, input->len,
                                    output, output_buffer_size,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, input->len ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
     total_output_length += function_output_length;
+
     status = psa_cipher_finish( &operation,
                                 output + total_output_length,
                                 output_buffer_size - total_output_length,
                                 &function_output_length );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
     total_output_length += function_output_length;
     TEST_EQUAL( status, expected_status );
 
@@ -2686,23 +2747,37 @@
                                             iv, iv_size,
                                             &iv_length ) );
     }
-    output1_size = ( (size_t) input->len +
-                     PSA_BLOCK_CIPHER_BLOCK_LENGTH( key_type ) );
+    output1_size = PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, input->len );
+    TEST_ASSERT( output1_size <=
+                 PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( input->len ) );
     ASSERT_ALLOC( output1, output1_size );
 
     PSA_ASSERT( psa_cipher_update( &operation1, input->x, input->len,
                                    output1, output1_size,
                                    &output1_length ) );
+    TEST_ASSERT( output1_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, input->len ) );
+    TEST_ASSERT( output1_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len ) );
+
     PSA_ASSERT( psa_cipher_finish( &operation1,
                                    output1 + output1_length,
                                    output1_size - output1_length,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
 
     output1_length += function_output_length;
 
     PSA_ASSERT( psa_cipher_abort( &operation1 ) );
 
     output2_size = output1_length;
+    TEST_ASSERT( output2_size <=
+                 PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, output1_length ) );
+    TEST_ASSERT( output2_size <=
+                 PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( output1_length ) );
     ASSERT_ALLOC( output2, output2_size );
 
     if( iv_length > 0 )
@@ -2714,11 +2789,20 @@
     PSA_ASSERT( psa_cipher_update( &operation2, output1, output1_length,
                                    output2, output2_size,
                                    &output2_length ) );
+    TEST_ASSERT( output2_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, output1_length ) );
+    TEST_ASSERT( output2_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( output1_length ) );
+
     function_output_length = 0;
     PSA_ASSERT( psa_cipher_finish( &operation2,
                                    output2 + output2_length,
                                    output2_size - output2_length,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
 
     output2_length += function_output_length;
 
@@ -2780,8 +2864,9 @@
                                             &iv_length ) );
     }
 
-    output1_buffer_size = ( (size_t) input->len +
-                            PSA_BLOCK_CIPHER_BLOCK_LENGTH( key_type ) );
+    output1_buffer_size = PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, input->len );
+    TEST_ASSERT( output1_buffer_size <=
+                 PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE( input->len ) );
     ASSERT_ALLOC( output1, output1_buffer_size );
 
     TEST_ASSERT( first_part_size <= input->len );
@@ -2789,6 +2874,10 @@
     PSA_ASSERT( psa_cipher_update( &operation1, input->x, first_part_size,
                                    output1, output1_buffer_size,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size ) );
     output1_length += function_output_length;
 
     PSA_ASSERT( psa_cipher_update( &operation1,
@@ -2796,17 +2885,31 @@
                                    input->len - first_part_size,
                                    output1, output1_buffer_size,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
+                                                alg,
+                                                input->len - first_part_size ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( input->len - first_part_size ) );
     output1_length += function_output_length;
 
     PSA_ASSERT( psa_cipher_finish( &operation1,
                                    output1 + output1_length,
                                    output1_buffer_size - output1_length,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
     output1_length += function_output_length;
 
     PSA_ASSERT( psa_cipher_abort( &operation1 ) );
 
     output2_buffer_size = output1_length;
+    TEST_ASSERT( output2_buffer_size <=
+                 PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, output1_length ) );
+    TEST_ASSERT( output2_buffer_size <=
+                 PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE( output1_length ) );
     ASSERT_ALLOC( output2, output2_buffer_size );
 
     if( iv_length > 0 )
@@ -2818,6 +2921,10 @@
     PSA_ASSERT( psa_cipher_update( &operation2, output1, first_part_size,
                                    output2, output2_buffer_size,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type, alg, first_part_size ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( first_part_size ) );
     output2_length += function_output_length;
 
     PSA_ASSERT( psa_cipher_update( &operation2,
@@ -2825,12 +2932,22 @@
                                    output1_length - first_part_size,
                                    output2, output2_buffer_size,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_SIZE( key_type,
+                                                alg,
+                                                output1_length - first_part_size ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE( output1_length - first_part_size ) );
     output2_length += function_output_length;
 
     PSA_ASSERT( psa_cipher_finish( &operation2,
                                    output2 + output2_length,
                                    output2_buffer_size - output2_length,
                                    &function_output_length ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_SIZE( key_type, alg ) );
+    TEST_ASSERT( function_output_length <=
+                 PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE );
     output2_length += function_output_length;
 
     PSA_ASSERT( psa_cipher_abort( &operation2 ) );
@@ -2913,6 +3030,9 @@
         TEST_EQUAL( input_data->len,
                     PSA_AEAD_DECRYPT_OUTPUT_SIZE( alg, output_length ) );
 
+        TEST_ASSERT( input_data->len <=
+                     PSA_AEAD_DECRYPT_OUTPUT_MAX_SIZE( output_length ) );
+
         TEST_EQUAL( psa_aead_decrypt( key, alg,
                                       nonce->x, nonce->len,
                                       additional_data->x,
@@ -2957,6 +3077,8 @@
      * should be exact. */
     TEST_EQUAL( output_size,
                 PSA_AEAD_ENCRYPT_OUTPUT_SIZE( alg, input_data->len ) );
+    TEST_ASSERT( output_size <=
+                 PSA_AEAD_ENCRYPT_OUTPUT_MAX_SIZE( input_data->len ) );
     ASSERT_ALLOC( output_data, output_size );
 
     PSA_ASSERT( psa_crypto_init( ) );
@@ -3016,11 +3138,15 @@
     psa_status_t status = PSA_ERROR_GENERIC_ERROR;
 
     output_size = input_data->len - tag_length;
-    /* For all currently defined algorithms, PSA_AEAD_DECRYPT_OUTPUT_SIZE
-     * should be exact. */
     if( expected_result != PSA_ERROR_INVALID_ARGUMENT )
+    {
+        /* For all currently defined algorithms, PSA_AEAD_DECRYPT_OUTPUT_SIZE
+         * should be exact. */
         TEST_EQUAL( output_size,
                     PSA_AEAD_DECRYPT_OUTPUT_SIZE( alg, input_data->len ) );
+        TEST_ASSERT( output_size <=
+                     PSA_AEAD_DECRYPT_OUTPUT_MAX_SIZE( input_data->len ) );
+    }
     ASSERT_ALLOC( output_data, output_size );
 
     PSA_ASSERT( psa_crypto_init( ) );
@@ -3389,7 +3515,9 @@
     /* Determine the maximum output length */
     PSA_ASSERT( psa_get_key_attributes( key, &attributes ) );
     key_bits = psa_get_key_bits( &attributes );
+
     output_size = PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE( key_type, key_bits, alg );
+    TEST_ASSERT( output_size <= PSA_ASYMMETRIC_ENCRYPT_OUTPUT_MAX_SIZE );
     ASSERT_ALLOC( output, output_size );
 
     /* Encrypt the input */
@@ -3461,9 +3589,15 @@
     /* Determine the maximum ciphertext length */
     PSA_ASSERT( psa_get_key_attributes( key, &attributes ) );
     key_bits = psa_get_key_bits( &attributes );
+
     output_size = PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE( key_type, key_bits, alg );
+    TEST_ASSERT( output_size <= PSA_ASYMMETRIC_ENCRYPT_OUTPUT_MAX_SIZE );
     ASSERT_ALLOC( output, output_size );
+
     output2_size = input_data->len;
+    TEST_ASSERT( output2_size <=
+                 PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE( key_type, key_bits, alg ) );
+    TEST_ASSERT( output2_size <= PSA_ASYMMETRIC_DECRYPT_OUTPUT_MAX_SIZE );
     ASSERT_ALLOC( output2, output2_size );
 
     /* We test encryption by checking that encrypt-then-decrypt gives back
@@ -3511,14 +3645,12 @@
     mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
     psa_key_type_t key_type = key_type_arg;
     psa_algorithm_t alg = alg_arg;
+    size_t key_bits;
     unsigned char *output = NULL;
     size_t output_size = 0;
     size_t output_length = ~0;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
 
-    output_size = expected_data->len;
-    ASSERT_ALLOC( output, output_size );
-
     PSA_ASSERT( psa_crypto_init( ) );
 
     psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_DECRYPT );
@@ -3528,6 +3660,14 @@
     PSA_ASSERT( psa_import_key( &attributes, key_data->x, key_data->len,
                                 &key ) );
 
+    PSA_ASSERT( psa_get_key_attributes( key, &attributes ) );
+    key_bits = psa_get_key_bits( &attributes );
+
+    /* Determine the maximum ciphertext length */
+    output_size = PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE( key_type, key_bits, alg );
+    TEST_ASSERT( output_size <= PSA_ASYMMETRIC_DECRYPT_OUTPUT_MAX_SIZE );
+    ASSERT_ALLOC( output, output_size );
+
     PSA_ASSERT( psa_asymmetric_decrypt( key, alg,
                                         input_data->x, input_data->len,
                                         label->x, label->len,
@@ -3925,6 +4065,14 @@
                 PSA_ASSERT( psa_import_key( &attributes,
                                             inputs[i]->x, inputs[i]->len,
                                             &keys[i] ) );
+
+                if ( PSA_ALG_IS_TLS12_PSK_TO_MS( alg ) )
+                {
+                    PSA_ASSERT( psa_get_key_attributes( keys[i], &attributes ) );
+                    TEST_ASSERT( PSA_BITS_TO_BYTES( psa_get_key_bits( &attributes ) ) <=
+                                 PSA_TLS12_PSK_TO_MS_PSK_MAX_SIZE );
+                }
+
                 PSA_ASSERT( psa_key_derivation_input_key(
                                 &operation, steps[i], keys[i] ) );
                 break;
@@ -4310,6 +4458,7 @@
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
     unsigned char *output = NULL;
     size_t output_length = ~0;
+    size_t key_bits;
 
     ASSERT_ALLOC( output, expected_output->len );
     PSA_ASSERT( psa_crypto_init( ) );
@@ -4321,12 +4470,19 @@
                                 our_key_data->x, our_key_data->len,
                                 &our_key ) );
 
+    PSA_ASSERT( psa_get_key_attributes( our_key, &attributes ) );
+    key_bits = psa_get_key_bits( &attributes );
+
     PSA_ASSERT( psa_raw_key_agreement( alg, our_key,
                                        peer_key_data->x, peer_key_data->len,
                                        output, expected_output->len,
                                        &output_length ) );
     ASSERT_COMPARE( output, output_length,
                     expected_output->x, expected_output->len );
+    TEST_ASSERT( output_length <=
+                 PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE( our_key_type, key_bits ) );
+    TEST_ASSERT( output_length <=
+                 PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE );
 
 exit:
     mbedtls_free( output );
diff --git a/tests/suites/test_suite_psa_crypto_driver_wrappers.data b/tests/suites/test_suite_psa_crypto_driver_wrappers.data
index 14f84c0..8ac27a9 100644
--- a/tests/suites/test_suite_psa_crypto_driver_wrappers.data
+++ b/tests/suites/test_suite_psa_crypto_driver_wrappers.data
@@ -2,6 +2,7 @@
 ecdsa_sign:PSA_SUCCESS:"ab45435712649cb30bbddac49197eebf2740ffc7f874d9244c3460f54f322d3a":"9ac4335b469bbd791439248504dd0d49c71349a295fee5a1c68507f45a9e1c7b":"6a3399f69421ffe1490377adf2ea1f117d81a63cf5bf22e918d51175eb259151ce95d7c26cc04e25503e2f7a1ec3573e3c2412534bb4a19b3a7811742f49f50f":0:PSA_SUCCESS
 
 sign_hash through transparent driver: fallback
+depends_on:MBEDTLS_PSA_BUILTIN_ALG_ECDSA
 ecdsa_sign:PSA_ERROR_NOT_SUPPORTED:"ab45435712649cb30bbddac49197eebf2740ffc7f874d9244c3460f54f322d3a":"9ac4335b469bbd791439248504dd0d49c71349a295fee5a1c68507f45a9e1c7b":"6a3399f69421ffe1490377adf2ea1f117d81a63cf5bf22e918d51175eb259151ce95d7c26cc04e25503e2f7a1ec3573e3c2412534bb4a19b3a7811742f49f50f":0:PSA_SUCCESS
 
 sign_hash through transparent driver: error
@@ -14,6 +15,7 @@
 ecdsa_verify:PSA_SUCCESS:0:"ab45435712649cb30bbddac49197eebf2740ffc7f874d9244c3460f54f322d3a":"9ac4335b469bbd791439248504dd0d49c71349a295fee5a1c68507f45a9e1c7b":"6a3399f69421ffe1490377adf2ea1f117d81a63cf5bf22e918d51175eb259151ce95d7c26cc04e25503e2f7a1ec3573e3c2412534bb4a19b3a7811742f49f50f":PSA_SUCCESS
 
 verify_hash using private key through transparent driver: fallback
+depends_on:MBEDTLS_PSA_BUILTIN_ALG_ECDSA
 ecdsa_verify:PSA_ERROR_NOT_SUPPORTED:0:"ab45435712649cb30bbddac49197eebf2740ffc7f874d9244c3460f54f322d3a":"9ac4335b469bbd791439248504dd0d49c71349a295fee5a1c68507f45a9e1c7b":"6a3399f69421ffe1490377adf2ea1f117d81a63cf5bf22e918d51175eb259151ce95d7c26cc04e25503e2f7a1ec3573e3c2412534bb4a19b3a7811742f49f50f":PSA_SUCCESS
 
 verify_hash using private key through transparent driver: error
@@ -23,6 +25,7 @@
 ecdsa_verify:PSA_SUCCESS:1:"04dea5e45d0ea37fc566232a508f4ad20ea13d47e4bf5fa4d54a57a0ba012042087097496efc583fed8b24a5b9be9a51de063f5a00a8b698a16fd7f29b5485f320":"9ac4335b469bbd791439248504dd0d49c71349a295fee5a1c68507f45a9e1c7b":"6a3399f69421ffe1490377adf2ea1f117d81a63cf5bf22e918d51175eb259151ce95d7c26cc04e25503e2f7a1ec3573e3c2412534bb4a19b3a7811742f49f50f":PSA_SUCCESS
 
 verify_hash using public key through transparent driver: fallback
+depends_on:MBEDTLS_PSA_BUILTIN_ALG_ECDSA
 ecdsa_verify:PSA_ERROR_NOT_SUPPORTED:1:"04dea5e45d0ea37fc566232a508f4ad20ea13d47e4bf5fa4d54a57a0ba012042087097496efc583fed8b24a5b9be9a51de063f5a00a8b698a16fd7f29b5485f320":"9ac4335b469bbd791439248504dd0d49c71349a295fee5a1c68507f45a9e1c7b":"6a3399f69421ffe1490377adf2ea1f117d81a63cf5bf22e918d51175eb259151ce95d7c26cc04e25503e2f7a1ec3573e3c2412534bb4a19b3a7811742f49f50f":PSA_SUCCESS
 
 verify_hash using public key through transparent driver: error
diff --git a/tests/suites/test_suite_psa_its.function b/tests/suites/test_suite_psa_its.function
index 330846a..fb9ce07 100644
--- a/tests/suites/test_suite_psa_its.function
+++ b/tests/suites/test_suite_psa_its.function
@@ -17,6 +17,7 @@
 #define PSA_ITS_STORAGE_FILENAME_LENGTH         \
     ( sizeof( PSA_ITS_STORAGE_PREFIX ) - 1 + /*prefix without terminating 0*/ \
       16 + /*UID (64-bit number in hex)*/                               \
+      16 + /*UID (64-bit number in hex)*/                               \
       sizeof( PSA_ITS_STORAGE_SUFFIX ) - 1 + /*suffix without terminating 0*/ \
       1 /*terminating null byte*/ )
 #define PSA_ITS_STORAGE_TEMP \