diff --git a/ChangeLog.d/domain_parameters.txt b/ChangeLog.d/domain_parameters.txt
new file mode 100644
index 0000000..d860cc4
--- /dev/null
+++ b/ChangeLog.d/domain_parameters.txt
@@ -0,0 +1,9 @@
+New deprecations
+   * In the PSA API, domain parameters are no longer used for anything.
+     They are deprecated and will be removed in a future version of the
+     library.
+
+Removals
+   * In the PSA API, the experimental way to encode the public exponent of
+     an RSA key as a domain parameter is no longer supported. Use
+     psa_generate_key_ext() instead.
diff --git a/ChangeLog.d/psa_generate_key_ext.txt b/ChangeLog.d/psa_generate_key_ext.txt
new file mode 100644
index 0000000..8340f01
--- /dev/null
+++ b/ChangeLog.d/psa_generate_key_ext.txt
@@ -0,0 +1,3 @@
+Features
+   * The new function psa_generate_key_ext() allows generating an RSA
+     key pair with a custom public exponent.
diff --git a/include/mbedtls/ecp.h b/include/mbedtls/ecp.h
index 76aef32..0201963 100644
--- a/include/mbedtls/ecp.h
+++ b/include/mbedtls/ecp.h
@@ -1330,17 +1330,41 @@
 /**
  * \brief           This function exports an elliptic curve private key.
  *
+ * \note            Note that although this function accepts an output
+ *                  buffer that is smaller or larger than the key, most key
+ *                  import interfaces require the output to have exactly
+ *                  key's nominal length. It is generally simplest to
+ *                  pass the key's nominal length as \c buflen, after
+ *                  checking that the output buffer is large enough.
+ *                  See the description of the \p buflen parameter for
+ *                  how to calculate the nominal length.
+ *
+ * \note            If the private key was not set in \p key,
+ *                  the output is unspecified. Future versions
+ *                  may return an error in that case.
+ *
  * \param key       The private key.
  * \param buf       The output buffer for containing the binary representation
- *                  of the key. (Big endian integer for Weierstrass curves, byte
- *                  string for Montgomery curves.)
+ *                  of the key.
+ *                  For Weierstrass curves, this is the big-endian
+ *                  representation, padded with null bytes at the beginning
+ *                  to reach \p buflen bytes.
+ *                  For Montgomery curves, this is the standard byte string
+ *                  representation (which is little-endian), padded with
+ *                  null bytes at the end to reach \p buflen bytes.
  * \param buflen    The total length of the buffer in bytes.
+ *                  The length of the output is
+ *                  (`grp->nbits` + 7) / 8 bytes
+ *                  where `grp->nbits` is the private key size in bits.
+ *                  For Weierstrass keys, if the output buffer is smaller,
+ *                  leading zeros are trimmed to fit if possible. For
+ *                  Montgomery keys, the output buffer must always be large
+ *                  enough for the nominal length.
  *
  * \return          \c 0 on success.
- * \return          #MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL if the \p key
-                    representation is larger than the available space in \p buf.
- * \return          #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the operation for
- *                  the group is not implemented.
+ * \return          #MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL or
+ *                  #MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL if the \p key
+ *                  representation is larger than the available space in \p buf.
  * \return          Another negative error code on different kinds of failure.
  */
 int mbedtls_ecp_write_key(mbedtls_ecp_keypair *key,
@@ -1349,6 +1373,10 @@
 /**
  * \brief           This function exports an elliptic curve public key.
  *
+ * \note            If the public key was not set in \p key,
+ *                  the output is unspecified. Future versions
+ *                  may return an error in that case.
+ *
  * \param key       The public key.
  * \param format    The point format. This must be either
  *                  #MBEDTLS_ECP_PF_COMPRESSED or #MBEDTLS_ECP_PF_UNCOMPRESSED.
@@ -1431,6 +1459,10 @@
  *                  Each of the output parameters can be a null pointer
  *                  if you do not need that parameter.
  *
+ * \note            If the private key or the public key was not set in \p key,
+ *                  the corresponding output is unspecified. Future versions
+ *                  may return an error in that case.
+ *
  * \param key       The key pair to export from.
  * \param grp       Slot for exported ECP group.
  *                  It must either be null or point to an initialized ECP group.
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 08c628a..78395d2 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -734,6 +734,51 @@
 }
 mbedtls_ssl_states;
 
+/*
+ * Early data status, client side only.
+ */
+
+#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C)
+typedef enum {
+/*
+ * The client has not sent the first ClientHello yet, it is unknown if the
+ * client will send an early data indication extension or not.
+ */
+    MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN,
+
+/*
+ * See documentation of mbedtls_ssl_get_early_data_status().
+ */
+    MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT,
+    MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED,
+    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED,
+
+/*
+ * The client has sent an early data indication extension in its first
+ * ClientHello, it has not received the response (ServerHello or
+ * HelloRetryRequest) from the server yet. The transform to protect early data
+ * is not set and early data cannot be sent yet.
+ */
+    MBEDTLS_SSL_EARLY_DATA_STATUS_SENT,
+
+/*
+ * The client has sent an early data indication extension in its first
+ * ClientHello, it has not received the response (ServerHello or
+ * HelloRetryRequest) from the server yet. The transform to protect early data
+ * has been set and early data can be written now.
+ */
+    MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE,
+
+/*
+ * The client has sent an early data indication extension in its first
+ * ClientHello, the server has accepted them and the client has received the
+ * server Finished message. It cannot send early data to the server anymore.
+ */
+    MBEDTLS_SSL_EARLY_DATA_STATUS_SERVER_FINISHED_RECEIVED,
+} mbedtls_ssl_early_data_status;
+
+#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_CLI_C */
+
 /**
  * \brief          Callback type: send data on the network.
  *
@@ -1673,33 +1718,29 @@
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
 
     /**
-     *  Maximum TLS version to be negotiated, then negotiated TLS version.
+     * Maximum TLS version to be negotiated, then negotiated TLS version.
      *
-     *  It is initialized as the configured maximum TLS version to be
-     *  negotiated by mbedtls_ssl_setup().
+     * It is initialized as the configured maximum TLS version to be
+     * negotiated by mbedtls_ssl_setup().
      *
-     *  When renegotiating or resuming a session, it is overwritten in the
-     *  ClientHello writing preparation stage with the previously negotiated
-     *  TLS version.
+     * When renegotiating or resuming a session, it is overwritten in the
+     * ClientHello writing preparation stage with the previously negotiated
+     * TLS version.
      *
-     *  On client side, it is updated to the TLS version selected by the server
-     *  for the handshake when the ServerHello is received.
+     * On client side, it is updated to the TLS version selected by the server
+     * for the handshake when the ServerHello is received.
      *
-     *  On server side, it is updated to the TLS version the server selects for
-     *  the handshake when the ClientHello is received.
+     * On server side, it is updated to the TLS version the server selects for
+     * the handshake when the ClientHello is received.
      */
     mbedtls_ssl_protocol_version MBEDTLS_PRIVATE(tls_version);
 
 #if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C)
     /**
-     *  Status of the negotiation of the use of early data.
-     *  See the documentation of mbedtls_ssl_get_early_data_status() for more
-     *  information.
-     *
-     *  Reset to #MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT when the context is
-     *  reset.
+     * Status of the negotiation of the use of early data. Reset to
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN when the context is reset.
      */
-    int MBEDTLS_PRIVATE(early_data_status);
+    mbedtls_ssl_early_data_status MBEDTLS_PRIVATE(early_data_status);
 #endif
 
     unsigned MBEDTLS_PRIVATE(badmac_seen);       /*!< records with a bad MAC received    */
@@ -5150,10 +5191,6 @@
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
 
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT  1
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED  2
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED  3
-
 #if defined(MBEDTLS_SSL_SRV_C)
 /**
  * \brief          Read at most 'len' bytes of early data
@@ -5206,17 +5243,43 @@
  * \brief          Try to write exactly 'len' application data bytes while
  *                 performing the handshake (early data).
  *
+ * \warning        Early data is defined in the TLS 1.3 specification, RFC 8446.
+ *                 IMPORTANT NOTE from section 2.3 of the specification:
+ *
+ *                 The security properties for 0-RTT data are weaker than
+ *                 those for other kinds of TLS data. Specifically:
+ *                 - This data is not forward secret, as it is encrypted
+ *                   solely under keys derived using the offered PSK.
+ *                 - There are no guarantees of non-replay between connections.
+ *                   Protection against replay for ordinary TLS 1.3 1-RTT data
+ *                   is provided via the server's Random value, but 0-RTT data
+ *                   does not depend on the ServerHello and therefore has
+ *                   weaker guarantees. This is especially relevant if the
+ *                   data is authenticated either with TLS client
+ *                   authentication or inside the application protocol. The
+ *                   same warnings apply to any use of the
+ *                   early_exporter_master_secret.
+ *
  * \note           This function behaves mainly as mbedtls_ssl_write(). The
  *                 specification of mbedtls_ssl_write() relevant to TLS 1.3
  *                 (thus not the parts specific to (D)TLS1.2) applies to this
- *                 function and the present documentation is restricted to the
- *                 differences with mbedtls_ssl_write().
+ *                 function and the present documentation is mainly restricted
+ *                 to the differences with mbedtls_ssl_write(). One noticeable
+ *                 difference though is that mbedtls_ssl_write() aims to
+ *                 complete the handshake before to write application data
+ *                 while mbedtls_ssl_write_early() aims to drive the handshake
+ *                 just past the point where it is not possible to send early
+ *                 data anymore.
  *
  * \param ssl      SSL context
  * \param buf      buffer holding the data
  * \param len      how many bytes must be written
  *
- * \return         One additional specific return value:
+ * \return         The (non-negative) number of bytes actually written if
+ *                 successful (may be less than \p len).
+ *
+ * \return         One additional specific error code compared to
+ *                 mbedtls_ssl_write():
  *                 #MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA.
  *
  *                 #MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA is returned when it
@@ -5237,9 +5300,11 @@
  *                 already completed.
  *
  *                 It is not possible to write early data for the SSL context
- *                 \p ssl but this does not preclude for using it with
+ *                 \p ssl and any subsequent call to this API will return this
+ *                 error code. But this does not preclude for using it with
  *                 mbedtls_ssl_write(), mbedtls_ssl_read() or
- *                 mbedtls_ssl_handshake().
+ *                 mbedtls_ssl_handshake() and the handshake can be
+ *                 completed by calling one of these APIs.
  *
  * \note           This function may write early data only if the SSL context
  *                 has been configured for the handshake with a PSK for which
diff --git a/include/mbedtls/x509.h b/include/mbedtls/x509.h
index be63612..453f598 100644
--- a/include/mbedtls/x509.h
+++ b/include/mbedtls/x509.h
@@ -322,9 +322,151 @@
  */
 int mbedtls_x509_dn_gets(char *buf, size_t size, const mbedtls_x509_name *dn);
 
+/**
+ * \brief            Convert the certificate DN string \p name into
+ *                   a linked list of mbedtls_x509_name (equivalent to
+ *                   mbedtls_asn1_named_data).
+ *
+ * \note             This function allocates a linked list, and places the head
+ *                   pointer in \p head. This list must later be freed by a
+ *                   call to mbedtls_asn1_free_named_data_list().
+ *
+ * \param[out] head  Address in which to store the pointer to the head of the
+ *                   allocated list of mbedtls_x509_name
+ * \param[in] name   The string representation of a DN to convert
+ *
+ * \return           0 on success, or a negative error code.
+ */
 int mbedtls_x509_string_to_names(mbedtls_asn1_named_data **head, const char *name);
 
 /**
+ * \brief          Return the next relative DN in an X509 name.
+ *
+ * \note           Intended use is to compare function result to dn->next
+ *                 in order to detect boundaries of multi-valued RDNs.
+ *
+ * \param dn       Current node in the X509 name
+ *
+ * \return         Pointer to the first attribute-value pair of the
+ *                 next RDN in sequence, or NULL if end is reached.
+ */
+static inline mbedtls_x509_name *mbedtls_x509_dn_get_next(
+    mbedtls_x509_name *dn)
+{
+    while (dn->MBEDTLS_PRIVATE(next_merged) && dn->next != NULL) {
+        dn = dn->next;
+    }
+    return dn->next;
+}
+
+/**
+ * \brief          Store the certificate serial in printable form into buf;
+ *                 no more than size characters will be written.
+ *
+ * \param buf      Buffer to write to
+ * \param size     Maximum size of buffer
+ * \param serial   The X509 serial to represent
+ *
+ * \return         The length of the string written (not including the
+ *                 terminated nul byte), or a negative error code.
+ */
+int mbedtls_x509_serial_gets(char *buf, size_t size, const mbedtls_x509_buf *serial);
+
+/**
+ * \brief          Compare pair of mbedtls_x509_time.
+ *
+ * \param t1       mbedtls_x509_time to compare
+ * \param t2       mbedtls_x509_time to compare
+ *
+ * \return         < 0 if t1 is before t2
+ *                   0 if t1 equals t2
+ *                 > 0 if t1 is after t2
+ */
+int mbedtls_x509_time_cmp(const mbedtls_x509_time *t1, const mbedtls_x509_time *t2);
+
+#if defined(MBEDTLS_HAVE_TIME_DATE)
+/**
+ * \brief          Fill mbedtls_x509_time with provided mbedtls_time_t.
+ *
+ * \param tt       mbedtls_time_t to convert
+ * \param now      mbedtls_x509_time to fill with converted mbedtls_time_t
+ *
+ * \return         \c 0 on success
+ * \return         A non-zero return value on failure.
+ */
+int mbedtls_x509_time_gmtime(mbedtls_time_t tt, mbedtls_x509_time *now);
+#endif /* MBEDTLS_HAVE_TIME_DATE */
+
+/**
+ * \brief          Check a given mbedtls_x509_time against the system time
+ *                 and tell if it's in the past.
+ *
+ * \note           Intended usage is "if( is_past( valid_to ) ) ERROR".
+ *                 Hence the return value of 1 if on internal errors.
+ *
+ * \param to       mbedtls_x509_time to check
+ *
+ * \return         1 if the given time is in the past or an error occurred,
+ *                 0 otherwise.
+ */
+int mbedtls_x509_time_is_past(const mbedtls_x509_time *to);
+
+/**
+ * \brief          Check a given mbedtls_x509_time against the system time
+ *                 and tell if it's in the future.
+ *
+ * \note           Intended usage is "if( is_future( valid_from ) ) ERROR".
+ *                 Hence the return value of 1 if on internal errors.
+ *
+ * \param from     mbedtls_x509_time to check
+ *
+ * \return         1 if the given time is in the future or an error occurred,
+ *                 0 otherwise.
+ */
+int mbedtls_x509_time_is_future(const mbedtls_x509_time *from);
+
+/**
+ * \brief          This function parses an item in the SubjectAlternativeNames
+ *                 extension. Please note that this function might allocate
+ *                 additional memory for a subject alternative name, thus
+ *                 mbedtls_x509_free_subject_alt_name has to be called
+ *                 to dispose of this additional memory afterwards.
+ *
+ * \param san_buf  The buffer holding the raw data item of the subject
+ *                 alternative name.
+ * \param san      The target structure to populate with the parsed presentation
+ *                 of the subject alternative name encoded in \p san_buf.
+ *
+ * \note           Supported GeneralName types, as defined in RFC 5280:
+ *                 "rfc822Name", "dnsName", "directoryName",
+ *                 "uniformResourceIdentifier" and "hardware_module_name"
+ *                 of type "otherName", as defined in RFC 4108.
+ *
+ * \note           This function should be called on a single raw data of
+ *                 subject alternative name. For example, after successful
+ *                 certificate parsing, one must iterate on every item in the
+ *                 \c crt->subject_alt_names sequence, and pass it to
+ *                 this function.
+ *
+ * \warning        The target structure contains pointers to the raw data of the
+ *                 parsed certificate, and its lifetime is restricted by the
+ *                 lifetime of the certificate.
+ *
+ * \return         \c 0 on success
+ * \return         #MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE for an unsupported
+ *                 SAN type.
+ * \return         Another negative value for any other failure.
+ */
+int mbedtls_x509_parse_subject_alt_name(const mbedtls_x509_buf *san_buf,
+                                        mbedtls_x509_subject_alternative_name *san);
+/**
+ * \brief          Unallocate all data related to subject alternative name
+ *
+ * \param san      SAN structure - extra memory owned by this structure will be freed
+ */
+void mbedtls_x509_free_subject_alt_name(mbedtls_x509_subject_alternative_name *san);
+
+/**
  * \brief          This function parses a CN string as an IP address.
  *
  * \param cn       The CN string to parse. CN string MUST be null-terminated.
diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index fe10ee0..73889e0 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -119,8 +119,9 @@
  * value in the structure.
  * The persistent key will be written to storage when the attribute
  * structure is passed to a key creation function such as
- * psa_import_key(), psa_generate_key(),
- * psa_key_derivation_output_key() or psa_copy_key().
+ * psa_import_key(), psa_generate_key(), psa_generate_key_ext(),
+ * psa_key_derivation_output_key(), psa_key_derivation_output_key_ext()
+ * or psa_copy_key().
  *
  * This function may be declared as `static` (i.e. without external
  * linkage). This function may be provided as a function-like macro,
@@ -163,8 +164,9 @@
  * value in the structure.
  * The persistent key will be written to storage when the attribute
  * structure is passed to a key creation function such as
- * psa_import_key(), psa_generate_key(),
- * psa_key_derivation_output_key() or psa_copy_key().
+ * psa_import_key(), psa_generate_key(), psa_generate_key_ext(),
+ * psa_key_derivation_output_key(), psa_key_derivation_output_key_ext()
+ * or psa_copy_key().
  *
  * This function may be declared as `static` (i.e. without external
  * linkage). This function may be provided as a function-like macro,
@@ -3226,7 +3228,8 @@
  *    psa_key_derivation_set_capacity(). You may do this before, in the middle
  *    of or after providing inputs. For some algorithms, this step is mandatory
  *    because the output depends on the maximum capacity.
- * -# To derive a key, call psa_key_derivation_output_key().
+ * -# To derive a key, call psa_key_derivation_output_key() or
+ *    psa_key_derivation_output_key_ext().
  *    To derive a byte string for a different purpose, call
  *    psa_key_derivation_output_bytes().
  *    Successive calls to these functions use successive output bytes
@@ -3449,7 +3452,8 @@
  * \note Once all inputs steps are completed, the operations will allow:
  * - psa_key_derivation_output_bytes() if each input was either a direct input
  *   or  a key with #PSA_KEY_USAGE_DERIVE set;
- * - psa_key_derivation_output_key() if the input for step
+ * - psa_key_derivation_output_key() or psa_key_derivation_output_key_ext()
+ *   if the input for step
  *   #PSA_KEY_DERIVATION_INPUT_SECRET or #PSA_KEY_DERIVATION_INPUT_PASSWORD
  *   was from a key slot with #PSA_KEY_USAGE_DERIVE and each other input was
  *   either a direct input or a key with #PSA_KEY_USAGE_DERIVE set;
@@ -3697,6 +3701,11 @@
  * Future versions of this specification may include additional restrictions
  * on the derived key based on the attributes and strength of the secret key.
  *
+ * \note This function is equivalent to calling
+ *       psa_key_derivation_output_key_ext()
+ *       with the production parameters #PSA_KEY_PRODUCTION_PARAMETERS_INIT
+ *       and `params_data_length == 0` (i.e. `params->data` is empty).
+ *
  * \param[in] attributes    The attributes for the new key.
  *                          If the key type to be created is
  *                          #PSA_KEY_TYPE_PASSWORD_HASH then the algorithm in
@@ -3750,6 +3759,83 @@
     psa_key_derivation_operation_t *operation,
     mbedtls_svc_key_id_t *key);
 
+/** Derive a key from an ongoing key derivation operation with custom
+ *  production parameters.
+ *
+ * See the description of psa_key_derivation_out_key() for the operation of
+ * this function with the default production parameters.
+ * Mbed TLS currently does not currently support any non-default production
+ * parameters.
+ *
+ * \note This function is experimental and may change in future minor
+ *       versions of Mbed TLS.
+ *
+ * \param[in] attributes    The attributes for the new key.
+ *                          If the key type to be created is
+ *                          #PSA_KEY_TYPE_PASSWORD_HASH then the algorithm in
+ *                          the policy must be the same as in the current
+ *                          operation.
+ * \param[in,out] operation The key derivation operation object to read from.
+ * \param[in] params        Customization parameters for the key derivation.
+ *                          When this is #PSA_KEY_PRODUCTION_PARAMETERS_INIT
+ *                          with \p params_data_length = 0,
+ *                          this function is equivalent to
+ *                          psa_key_derivation_output_key().
+ *                          Mbed TLS currently only supports the default
+ *                          production parameters, i.e.
+ *                          #PSA_KEY_PRODUCTION_PARAMETERS_INIT,
+ *                          for all key types.
+ * \param params_data_length
+ *                          Length of `params->data` in bytes.
+ * \param[out] key          On success, an identifier for the newly created
+ *                          key. For persistent keys, this is the key
+ *                          identifier defined in \p attributes.
+ *                          \c 0 on failure.
+ *
+ * \retval #PSA_SUCCESS
+ *         Success.
+ *         If the key is persistent, the key material and the key's metadata
+ *         have been saved to persistent storage.
+ * \retval #PSA_ERROR_ALREADY_EXISTS
+ *         This is an attempt to create a persistent key, and there is
+ *         already a persistent key with the given identifier.
+ * \retval #PSA_ERROR_INSUFFICIENT_DATA
+ *         There was not enough data to create the desired key.
+ *         Note that in this case, no output is written to the output buffer.
+ *         The operation's capacity is set to 0, thus subsequent calls to
+ *         this function will not succeed, even with a smaller output buffer.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ *         The key type or key size is not supported, either by the
+ *         implementation in general or in this particular location.
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ *         The provided key attributes are not valid for the operation.
+ * \retval #PSA_ERROR_NOT_PERMITTED
+ *         The #PSA_KEY_DERIVATION_INPUT_SECRET or
+ *         #PSA_KEY_DERIVATION_INPUT_PASSWORD input was not provided through a
+ *         key; or one of the inputs was a key whose policy didn't allow
+ *         #PSA_KEY_USAGE_DERIVE.
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
+ * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription
+ * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription
+ * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription
+ * \retval #PSA_ERROR_DATA_INVALID \emptydescription
+ * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription
+ * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription
+ * \retval #PSA_ERROR_BAD_STATE
+ *         The operation state is not valid (it must be active and completed
+ *         all required input steps), or the library has not been previously
+ *         initialized by psa_crypto_init().
+ *         It is implementation-dependent whether a failure to initialize
+ *         results in this error code.
+ */
+psa_status_t psa_key_derivation_output_key_ext(
+    const psa_key_attributes_t *attributes,
+    psa_key_derivation_operation_t *operation,
+    const psa_key_production_parameters_t *params,
+    size_t params_data_length,
+    mbedtls_svc_key_id_t *key);
+
 /** Compare output data from a key derivation operation to an expected value.
  *
  * This function calculates output bytes from a key derivation algorithm and
@@ -3835,7 +3921,8 @@
  *                          and the permitted algorithm must match the
  *                          operation. The value of this key was likely
  *                          computed by a previous call to
- *                          psa_key_derivation_output_key().
+ *                          psa_key_derivation_output_key() or
+ *                          psa_key_derivation_output_key_ext().
  *
  * \retval #PSA_SUCCESS \emptydescription
  * \retval #PSA_ERROR_INVALID_SIGNATURE
@@ -4003,6 +4090,10 @@
  *   between 2^{n-1} and 2^n where n is the bit size specified in the
  *   attributes.
  *
+ * \note This function is equivalent to calling psa_generate_key_ext()
+ *       with the production parameters #PSA_KEY_PRODUCTION_PARAMETERS_INIT
+ *       and `params_data_length == 0` (i.e. `params->data` is empty).
+ *
  * \param[in] attributes    The attributes for the new key.
  * \param[out] key          On success, an identifier for the newly created
  *                          key. For persistent keys, this is the key
@@ -4035,6 +4126,60 @@
 psa_status_t psa_generate_key(const psa_key_attributes_t *attributes,
                               mbedtls_svc_key_id_t *key);
 
+/**
+ * \brief Generate a key or key pair using custom production parameters.
+ *
+ * See the description of psa_generate_key() for the operation of this
+ * function with the default production parameters. In addition, this function
+ * supports the following production customizations, described in more detail
+ * in the documentation of ::psa_key_production_parameters_t:
+ *
+ * - RSA keys: generation with a custom public exponent.
+ *
+ * \note This function is experimental and may change in future minor
+ *       versions of Mbed TLS.
+ *
+ * \param[in] attributes    The attributes for the new key.
+ * \param[in] params        Customization parameters for the key generation.
+ *                          When this is #PSA_KEY_PRODUCTION_PARAMETERS_INIT
+ *                          with \p params_data_length = 0,
+ *                          this function is equivalent to
+ *                          psa_generate_key().
+ * \param params_data_length
+ *                          Length of `params->data` in bytes.
+ * \param[out] key          On success, an identifier for the newly created
+ *                          key. For persistent keys, this is the key
+ *                          identifier defined in \p attributes.
+ *                          \c 0 on failure.
+ *
+ * \retval #PSA_SUCCESS
+ *         Success.
+ *         If the key is persistent, the key material and the key's metadata
+ *         have been saved to persistent storage.
+ * \retval #PSA_ERROR_ALREADY_EXISTS
+ *         This is an attempt to create a persistent key, and there is
+ *         already a persistent key with the given identifier.
+ * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription
+ * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
+ * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription
+ * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription
+ * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription
+ * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription
+ * \retval #PSA_ERROR_DATA_INVALID \emptydescription
+ * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription
+ * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription
+ * \retval #PSA_ERROR_BAD_STATE
+ *         The library has not been previously initialized by psa_crypto_init().
+ *         It is implementation-dependent whether a failure to initialize
+ *         results in this error code.
+ */
+psa_status_t psa_generate_key_ext(const psa_key_attributes_t *attributes,
+                                  const psa_key_production_parameters_t *params,
+                                  size_t params_data_length,
+                                  mbedtls_svc_key_id_t *key);
+
 /**@}*/
 
 /** \defgroup interruptible_hash Interruptible sign/verify hash
diff --git a/include/psa/crypto_compat.h b/include/psa/crypto_compat.h
index f896fae..2a226c0 100644
--- a/include/psa/crypto_compat.h
+++ b/include/psa/crypto_compat.h
@@ -146,6 +146,83 @@
  */
 psa_status_t psa_close_key(psa_key_handle_t handle);
 
+/** \addtogroup attributes
+ * @{
+ */
+
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+/** Custom Diffie-Hellman group.
+ *
+ * Mbed TLS does not support custom DH groups.
+ *
+ * \deprecated This value is not useful, so this macro will be removed in
+ *             a future version of the library.
+ */
+#define PSA_DH_FAMILY_CUSTOM                                            \
+    ((psa_dh_family_t) MBEDTLS_DEPRECATED_NUMERIC_CONSTANT(0x7e))
+
+/**
+ * \brief Set domain parameters for a key.
+ *
+ * \deprecated  Mbed TLS no longer supports any domain parameters.
+ *              This function only does the equivalent of
+ *              psa_set_key_type() and will be removed in a future version
+ *              of the library.
+ *
+ * \param[in,out] attributes    Attribute structure where \p type will be set.
+ * \param type                  Key type (a \c PSA_KEY_TYPE_XXX value).
+ * \param[in] data              Ignored.
+ * \param data_length           Must be 0.
+ *
+ * \retval #PSA_SUCCESS \emptydescription
+ * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription
+ */
+static inline psa_status_t MBEDTLS_DEPRECATED psa_set_key_domain_parameters(
+    psa_key_attributes_t *attributes,
+    psa_key_type_t type, const uint8_t *data, size_t data_length)
+{
+    (void) data;
+    if (data_length != 0) {
+        return PSA_ERROR_NOT_SUPPORTED;
+    }
+    psa_set_key_type(attributes, type);
+    return PSA_SUCCESS;
+}
+
+/**
+ * \brief Get domain parameters for a key.
+ *
+ * \deprecated  Mbed TLS no longer supports any domain parameters.
+ *              This function alwaya has an empty output and will be
+ *              removed in a future version of the library.
+
+ * \param[in] attributes        Ignored.
+ * \param[out] data             Ignored.
+ * \param data_size             Ignored.
+ * \param[out] data_length      Set to 0.
+ *
+ * \retval #PSA_SUCCESS \emptydescription
+ */
+static inline psa_status_t MBEDTLS_DEPRECATED psa_get_key_domain_parameters(
+    const psa_key_attributes_t *attributes,
+    uint8_t *data, size_t data_size, size_t *data_length)
+{
+    (void) attributes;
+    (void) data;
+    (void) data_size;
+    *data_length = 0;
+    return PSA_SUCCESS;
+}
+
+/** Safe output buffer size for psa_get_key_domain_parameters().
+ *
+ */
+#define PSA_KEY_DOMAIN_PARAMETERS_SIZE(key_type, key_bits)      \
+    MBEDTLS_DEPRECATED_NUMERIC_CONSTANT(1u)
+#endif /* MBEDTLS_DEPRECATED_REMOVED */
+
+/**@}*/
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/psa/crypto_extra.h b/include/psa/crypto_extra.h
index 10a23f6..ac21e3e 100644
--- a/include/psa/crypto_extra.h
+++ b/include/psa/crypto_extra.h
@@ -409,140 +409,11 @@
  * @{
  */
 
-/** Custom Diffie-Hellman group.
- *
- * For keys of type #PSA_KEY_TYPE_DH_PUBLIC_KEY(#PSA_DH_FAMILY_CUSTOM) or
- * #PSA_KEY_TYPE_DH_KEY_PAIR(#PSA_DH_FAMILY_CUSTOM), the group data comes
- * from domain parameters set by psa_set_key_domain_parameters().
- */
-#define PSA_DH_FAMILY_CUSTOM             ((psa_dh_family_t) 0x7e)
-
 /** PAKE operation stages. */
 #define PSA_PAKE_OPERATION_STAGE_SETUP 0
 #define PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS 1
 #define PSA_PAKE_OPERATION_STAGE_COMPUTATION 2
 
-/**
- * \brief Set domain parameters for a key.
- *
- * Some key types require additional domain parameters in addition to
- * the key type identifier and the key size. Use this function instead
- * of psa_set_key_type() when you need to specify domain parameters.
- *
- * The format for the required domain parameters varies based on the key type.
- * Mbed TLS supports the following key type with domain parameters:
- *
- * - For RSA keys (#PSA_KEY_TYPE_RSA_PUBLIC_KEY or #PSA_KEY_TYPE_RSA_KEY_PAIR),
- *   the domain parameter data consists of the public exponent,
- *   represented as a big-endian integer with no leading zeros.
- *   This information is used when generating an RSA key pair.
- *   When importing a key, the public exponent is read from the imported
- *   key data and the exponent recorded in the attribute structure is ignored.
- *   As an exception, the public exponent 65537 is represented by an empty
- *   byte string.
- *
- * \note This function may allocate memory or other resources.
- *       Once you have called this function on an attribute structure,
- *       you must call psa_reset_key_attributes() to free these resources.
- *
- * \note This is an experimental extension to the interface. It may change
- *       in future versions of the library.
- *
- * \note Due to an implementation limitation, domain parameters are ignored
- *       for keys that are managed by a driver.
- *
- * \param[in,out] attributes    Attribute structure where the specified domain
- *                              parameters will be stored.
- *                              If this function fails, the content of
- *                              \p attributes is not modified.
- * \param type                  Key type (a \c PSA_KEY_TYPE_XXX value).
- * \param[in] data              Buffer containing the key domain parameters.
- *                              The content of this buffer is interpreted
- *                              according to \p type as described above.
- * \param data_length           Size of the \p data buffer in bytes.
- *
- * \retval #PSA_SUCCESS \emptydescription
- * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription
- * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription
- * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
- */
-#if !defined(PSA_SET_KEY_DOMAIN_PARAMETERS)
-#define PSA_SET_KEY_DOMAIN_PARAMETERS
-psa_status_t psa_set_key_domain_parameters(psa_key_attributes_t *attributes,
-                                           psa_key_type_t type,
-                                           const uint8_t *data,
-                                           size_t data_length);
-#endif /* PSA_SET_KEY_DOMAIN_PARAMETERS */
-
-/**
- * \brief Get domain parameters for a key.
- *
- * Get the domain parameters for a key with this function, if any. The format
- * of the domain parameters written to \p data is specified in the
- * documentation for psa_set_key_domain_parameters().
- *
- * \note This is an experimental extension to the interface. It may change
- *       in future versions of the library.
- *
- * \note Due to an implementation limitation, domain parameters are not
- *       supported with keys that are managed by a driver.
- *
- * \param[in] attributes        The key attribute structure to query.
- * \param[out] data             On success, the key domain parameters.
- * \param data_size             Size of the \p data buffer in bytes.
- *                              The buffer is guaranteed to be large
- *                              enough if its size in bytes is at least
- *                              the value given by
- *                              PSA_KEY_DOMAIN_PARAMETERS_SIZE().
- * \param[out] data_length      On success, the number of bytes
- *                              that make up the key domain parameters data.
- *
- * \retval #PSA_SUCCESS \emptydescription
- * \retval #PSA_ERROR_BUFFER_TOO_SMALL \emptydescription
- * \retval #PSA_ERROR_NOT_SUPPORTED
- *         The key is managed by a driver.
- */
-psa_status_t psa_get_key_domain_parameters(
-    const psa_key_attributes_t *attributes,
-    uint8_t *data,
-    size_t data_size,
-    size_t *data_length);
-
-/** Safe output buffer size for psa_get_key_domain_parameters().
- *
- * This macro returns a compile-time constant if its arguments are
- * compile-time constants.
- *
- * \warning This function may call its arguments multiple times or
- *          zero times, so you should not pass arguments that contain
- *          side effects.
- *
- * \note This is an experimental extension to the interface. It may change
- *       in future versions of the library.
- *
- * \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_get_key_domain_parameters() 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.
- */
-#define PSA_KEY_DOMAIN_PARAMETERS_SIZE(key_type, key_bits)              \
-    (PSA_KEY_TYPE_IS_RSA(key_type) ? sizeof(int) :                      \
-     PSA_KEY_TYPE_IS_DH(key_type) ? PSA_DH_KEY_DOMAIN_PARAMETERS_SIZE(key_bits) : \
-     PSA_KEY_TYPE_IS_DSA(key_type) ? PSA_DSA_KEY_DOMAIN_PARAMETERS_SIZE(key_bits) : \
-     0)
-#define PSA_DH_KEY_DOMAIN_PARAMETERS_SIZE(key_bits)     \
-    (4 + (PSA_BITS_TO_BYTES(key_bits) + 5) * 3 /*without optional parts*/)
-#define PSA_DSA_KEY_DOMAIN_PARAMETERS_SIZE(key_bits)    \
-    (4 + (PSA_BITS_TO_BYTES(key_bits) + 5) * 2 /*p, g*/ + 34 /*q*/)
-
 /**@}*/
 
 
diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index 34d072b..683d841 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -223,6 +223,22 @@
     return v;
 }
 
+struct psa_key_production_parameters_s {
+    /* Future versions may add other fields in this structure. */
+    uint32_t flags;
+    uint8_t data[];
+};
+
+/** The default production parameters for key generation or key derivation.
+ *
+ * Calling psa_generate_key_ext() or psa_key_derivation_output_key_ext()
+ * with `params=PSA_KEY_PRODUCTION_PARAMETERS_INIT` and
+ * `params_data_length == 0` is equivalent to
+ * calling psa_generate_key() or psa_key_derivation_output_key()
+ * respectively.
+ */
+#define PSA_KEY_PRODUCTION_PARAMETERS_INIT { 0 }
+
 struct psa_key_policy_s {
     psa_key_usage_t MBEDTLS_PRIVATE(usage);
     psa_algorithm_t MBEDTLS_PRIVATE(alg);
@@ -302,20 +318,6 @@
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
     psa_key_slot_number_t MBEDTLS_PRIVATE(slot_number);
 #endif /* MBEDTLS_PSA_CRYPTO_SE_C */
-    /* Unlike normal buffers, there are three cases for domain_parameters
-     * and domain_parameters_size:
-     * - domain_parameters_size == SIZE_MAX && domain_parameters == NULL:
-     *   Access to domain parameters is not supported for this key.
-     *   This is a hack which should not exist, intended for keys managed
-     *   by a driver, because drivers don't support domain parameters.
-     * - domain_parameters_size == 0 && domain_parameters == NULL:
-     *   The domain parameters are empty.
-     * - domain_parameters_size > 0 &&
-     *   domain_parameters == valid pointer to domain_parameters_size bytes:
-     *   The domain parameters are non-empty.
-     */
-    void *MBEDTLS_PRIVATE(domain_parameters);
-    size_t MBEDTLS_PRIVATE(domain_parameters_size);
     /* With client/service separation, struct psa_key_attributes_s is
      * marshalled through a transport channel between the client and
      * service side implementation of the PSA Crypto APIs, thus having
@@ -326,9 +328,9 @@
 };
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
-#define PSA_KEY_ATTRIBUTES_INIT { 0, NULL, 0, PSA_CORE_KEY_ATTRIBUTES_INIT }
+#define PSA_KEY_ATTRIBUTES_INIT { 0, PSA_CORE_KEY_ATTRIBUTES_INIT }
 #else
-#define PSA_KEY_ATTRIBUTES_INIT { NULL, 0, PSA_CORE_KEY_ATTRIBUTES_INIT }
+#define PSA_KEY_ATTRIBUTES_INIT { PSA_CORE_KEY_ATTRIBUTES_INIT }
 #endif
 
 static inline struct psa_key_attributes_s psa_key_attributes_init(void)
@@ -421,29 +423,10 @@
     return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg);
 }
 
-/* This function is declared in crypto_extra.h, which comes after this
- * header file, but we need the function here, so repeat the declaration. */
-#if !defined(PSA_SET_KEY_DOMAIN_PARAMETERS)
-#define PSA_SET_KEY_DOMAIN_PARAMETERS
-psa_status_t psa_set_key_domain_parameters(psa_key_attributes_t *attributes,
-                                           psa_key_type_t type,
-                                           const uint8_t *data,
-                                           size_t data_length);
-#endif /* PSA_SET_KEY_DOMAIN_PARAMETERS */
-
 static inline void psa_set_key_type(psa_key_attributes_t *attributes,
                                     psa_key_type_t type)
 {
-    if (attributes->MBEDTLS_PRIVATE(domain_parameters) == NULL) {
-        /* Common case: quick path */
-        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(type) = type;
-    } else {
-        /* Call the bigger function to free the old domain parameters.
-         * Ignore any errors which may arise due to type requiring
-         * non-default domain parameters, since this function can't
-         * report errors. */
-        (void) psa_set_key_domain_parameters(attributes, type, NULL, 0);
-    }
+    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(type) = type;
 }
 
 static inline psa_key_type_t psa_get_key_type(
diff --git a/include/psa/crypto_types.h b/include/psa/crypto_types.h
index e2ebd8a..31ea686 100644
--- a/include/psa/crypto_types.h
+++ b/include/psa/crypto_types.h
@@ -455,6 +455,30 @@
  */
 typedef uint16_t psa_key_derivation_step_t;
 
+/** \brief Custom parameters for key generation or key derivation.
+ *
+ * This is a structure type with at least the following fields:
+ *
+ * - \c flags: an unsigned integer type. 0 for the default production parameters.
+ * - \c data: a flexible array of bytes.
+ *
+ * The interpretation of this structure depend on the type of the
+ * created key.
+ *
+ * - #PSA_KEY_TYPE_RSA_KEY_PAIR:
+ *     - \c flags: must be 0.
+ *     - \c data: the public exponent, in little-endian order.
+ *       This must be an odd integer and must not be 1.
+ *       Implementations must support 65535, should support 3 and may
+ *       support other values.
+ *       When not using a driver, Mbed TLS supports values up to \c INT_MAX.
+ *       If this is empty or if the custom production parameters are omitted
+ *       altogether, the default value 65537 is used.
+ * - Other key types: reserved for future use. \c flags must be 0.
+ *
+ */
+typedef struct psa_key_production_parameters_s psa_key_production_parameters_t;
+
 /**@}*/
 
 #endif /* PSA_CRYPTO_TYPES_H */
diff --git a/library/ecp.c b/library/ecp.c
index 758d54b..66b3dc1 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -3305,7 +3305,7 @@
 int mbedtls_ecp_write_key(mbedtls_ecp_keypair *key,
                           unsigned char *buf, size_t buflen)
 {
-    int ret = MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
 #if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED)
     if (mbedtls_ecp_get_type(&key->grp) == MBEDTLS_ECP_TYPE_MONTGOMERY) {
diff --git a/library/pk_wrap.c b/library/pk_wrap.c
index b472cfb..846175e 100644
--- a/library/pk_wrap.c
+++ b/library/pk_wrap.c
@@ -306,7 +306,7 @@
     psa_set_key_type(&attributes, PSA_KEY_TYPE_RSA_KEY_PAIR);
     psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_DECRYPT);
     if (mbedtls_rsa_get_padding_mode(rsa) == MBEDTLS_RSA_PKCS_V21) {
-        psa_md_alg = mbedtls_md_psa_alg_from_type(mbedtls_rsa_get_md_alg(rsa));
+        psa_md_alg = mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) mbedtls_rsa_get_md_alg(rsa));
         decrypt_alg = PSA_ALG_RSA_OAEP(psa_md_alg);
     } else {
         decrypt_alg = PSA_ALG_RSA_PKCS1V15_CRYPT;
@@ -388,7 +388,7 @@
 
     psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_ENCRYPT);
     if (mbedtls_rsa_get_padding_mode(rsa) == MBEDTLS_RSA_PKCS_V21) {
-        psa_md_alg = mbedtls_md_psa_alg_from_type(mbedtls_rsa_get_md_alg(rsa));
+        psa_md_alg = mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) mbedtls_rsa_get_md_alg(rsa));
         psa_set_key_algorithm(&attributes, PSA_ALG_RSA_OAEP(psa_md_alg));
     } else {
         psa_set_key_algorithm(&attributes, PSA_ALG_RSA_PKCS1V15_CRYPT);
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 87444e1..ca01e76 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -1211,58 +1211,12 @@
     return overall_status;
 }
 
-#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT) || \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY)
-static psa_status_t psa_get_rsa_public_exponent(
-    const mbedtls_rsa_context *rsa,
-    psa_key_attributes_t *attributes)
-{
-    mbedtls_mpi mpi;
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    uint8_t *buffer = NULL;
-    size_t buflen;
-    mbedtls_mpi_init(&mpi);
-
-    ret = mbedtls_rsa_export(rsa, NULL, NULL, NULL, NULL, &mpi);
-    if (ret != 0) {
-        goto exit;
-    }
-    if (mbedtls_mpi_cmp_int(&mpi, 65537) == 0) {
-        /* It's the default value, which is reported as an empty string,
-         * so there's nothing to do. */
-        goto exit;
-    }
-
-    buflen = mbedtls_mpi_size(&mpi);
-    buffer = mbedtls_calloc(1, buflen);
-    if (buffer == NULL) {
-        ret = MBEDTLS_ERR_MPI_ALLOC_FAILED;
-        goto exit;
-    }
-    ret = mbedtls_mpi_write_binary(&mpi, buffer, buflen);
-    if (ret != 0) {
-        goto exit;
-    }
-    attributes->domain_parameters = buffer;
-    attributes->domain_parameters_size = buflen;
-
-exit:
-    mbedtls_mpi_free(&mpi);
-    if (ret != 0) {
-        mbedtls_free(buffer);
-    }
-    return mbedtls_to_psa_error(ret);
-}
-#endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT) ||
-        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */
-
 /** Retrieve all the publicly-accessible attributes of a key.
  */
 psa_status_t psa_get_key_attributes(mbedtls_svc_key_id_t key,
                                     psa_key_attributes_t *attributes)
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot;
 
     psa_reset_key_attributes(attributes);
@@ -1283,55 +1237,7 @@
     }
 #endif /* MBEDTLS_PSA_CRYPTO_SE_C */
 
-    switch (slot->attr.type) {
-#if (defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) && \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT)) || \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY)
-        case PSA_KEY_TYPE_RSA_KEY_PAIR:
-        case PSA_KEY_TYPE_RSA_PUBLIC_KEY:
-            /* TODO: This is a temporary situation where domain parameters are deprecated,
-             * but we need it for namely generating an RSA key with a non-default exponent.
-             * This would be improved after https://github.com/Mbed-TLS/mbedtls/issues/6494.
-             */
-            if (!psa_key_lifetime_is_external(slot->attr.lifetime)) {
-                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) {
-                    break;
-                }
-
-                status = psa_get_rsa_public_exponent(rsa,
-                                                     attributes);
-                mbedtls_rsa_free(rsa);
-                mbedtls_free(rsa);
-            }
-            break;
-#else
-        case PSA_KEY_TYPE_RSA_KEY_PAIR:
-        case PSA_KEY_TYPE_RSA_PUBLIC_KEY:
-            attributes->domain_parameters = NULL;
-            attributes->domain_parameters_size = SIZE_MAX;
-            break;
-#endif /* (defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) && \
-        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT)) ||
-        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */
-        default:
-            /* Nothing else to do. */
-            break;
-    }
-
-    if (status != PSA_SUCCESS) {
-        psa_reset_key_attributes(attributes);
-    }
-
-    unlock_status = psa_unregister_read_under_mutex(slot);
-
-    return (status == PSA_SUCCESS) ? unlock_status : status;
+    return psa_unregister_read_under_mutex(slot);
 }
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
@@ -1959,57 +1865,6 @@
         }
     }
 
-    if (attributes->domain_parameters_size != 0) {
-#if (defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) && \
-        defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT)) || \
-        defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY)
-        if (PSA_KEY_TYPE_IS_RSA(slot->attr.type)) {
-            mbedtls_rsa_context *rsa = NULL;
-            mbedtls_mpi actual, required;
-            int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-
-            psa_status_t status = mbedtls_psa_rsa_load_representation(
-                slot->attr.type,
-                slot->key.data,
-                slot->key.bytes,
-                &rsa);
-            if (status != PSA_SUCCESS) {
-                return status;
-            }
-
-            mbedtls_mpi_init(&actual);
-            mbedtls_mpi_init(&required);
-            ret = mbedtls_rsa_export(rsa,
-                                     NULL, NULL, NULL, NULL, &actual);
-            mbedtls_rsa_free(rsa);
-            mbedtls_free(rsa);
-            if (ret != 0) {
-                goto rsa_exit;
-            }
-            ret = mbedtls_mpi_read_binary(&required,
-                                          attributes->domain_parameters,
-                                          attributes->domain_parameters_size);
-            if (ret != 0) {
-                goto rsa_exit;
-            }
-            if (mbedtls_mpi_cmp_mpi(&actual, &required) != 0) {
-                ret = MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
-            }
-rsa_exit:
-            mbedtls_mpi_free(&actual);
-            mbedtls_mpi_free(&required);
-            if (ret != 0) {
-                return mbedtls_to_psa_error(ret);
-            }
-        } else
-#endif /* (defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) &&
-        *  defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT)) ||
-        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */
-        {
-            return PSA_ERROR_INVALID_ARGUMENT;
-        }
-    }
-
     if (attributes->core.bits != 0) {
         if (attributes->core.bits != slot->attr.bits) {
             return PSA_ERROR_INVALID_ARGUMENT;
@@ -6066,9 +5921,28 @@
     return status;
 }
 
-psa_status_t psa_key_derivation_output_key(const psa_key_attributes_t *attributes,
-                                           psa_key_derivation_operation_t *operation,
-                                           mbedtls_svc_key_id_t *key)
+static const psa_key_production_parameters_t default_production_parameters =
+    PSA_KEY_PRODUCTION_PARAMETERS_INIT;
+
+int psa_key_production_parameters_are_default(
+    const psa_key_production_parameters_t *params,
+    size_t params_data_length)
+{
+    if (params->flags != 0) {
+        return 0;
+    }
+    if (params_data_length != 0) {
+        return 0;
+    }
+    return 1;
+}
+
+psa_status_t psa_key_derivation_output_key_ext(
+    const psa_key_attributes_t *attributes,
+    psa_key_derivation_operation_t *operation,
+    const psa_key_production_parameters_t *params,
+    size_t params_data_length,
+    mbedtls_svc_key_id_t *key)
 {
     psa_status_t status;
     psa_key_slot_t *slot = NULL;
@@ -6082,6 +5956,10 @@
         return PSA_ERROR_INVALID_ARGUMENT;
     }
 
+    if (!psa_key_production_parameters_are_default(params, params_data_length)) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
     if (operation->alg == PSA_ALG_NONE) {
         return PSA_ERROR_BAD_STATE;
     }
@@ -6113,6 +5991,15 @@
     return status;
 }
 
+psa_status_t psa_key_derivation_output_key(
+    const psa_key_attributes_t *attributes,
+    psa_key_derivation_operation_t *operation,
+    mbedtls_svc_key_id_t *key)
+{
+    return psa_key_derivation_output_key_ext(attributes, operation,
+                                             &default_production_parameters, 0,
+                                             key);
+}
 
 
 /****************************************************************/
@@ -7509,15 +7396,15 @@
 
 psa_status_t psa_generate_key_internal(
     const psa_key_attributes_t *attributes,
+    const psa_key_production_parameters_t *params, size_t params_data_length,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length)
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_type_t type = attributes->core.type;
 
-    if ((attributes->domain_parameters == NULL) &&
-        (attributes->domain_parameters_size != 0)) {
-        return PSA_ERROR_INVALID_ARGUMENT;
-    }
+    /* Only used for RSA */
+    (void) params;
+    (void) params_data_length;
 
     if (key_type_is_raw_bytes(type)) {
         status = psa_generate_random(key_buffer, key_buffer_size);
@@ -7535,6 +7422,7 @@
 #if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
     if (type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
         return mbedtls_psa_rsa_generate_key(attributes,
+                                            params, params_data_length,
                                             key_buffer,
                                             key_buffer_size,
                                             key_buffer_length);
@@ -7566,8 +7454,10 @@
     return PSA_SUCCESS;
 }
 
-psa_status_t psa_generate_key(const psa_key_attributes_t *attributes,
-                              mbedtls_svc_key_id_t *key)
+psa_status_t psa_generate_key_ext(const psa_key_attributes_t *attributes,
+                                  const psa_key_production_parameters_t *params,
+                                  size_t params_data_length,
+                                  mbedtls_svc_key_id_t *key)
 {
     psa_status_t status;
     psa_key_slot_t *slot = NULL;
@@ -7587,6 +7477,17 @@
         return PSA_ERROR_INVALID_ARGUMENT;
     }
 
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
+    if (attributes->core.type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
+        if (params->flags != 0) {
+            return PSA_ERROR_INVALID_ARGUMENT;
+        }
+    } else
+#endif
+    if (!psa_key_production_parameters_are_default(params, params_data_length)) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
     status = psa_start_key_creation(PSA_KEY_CREATION_GENERATE, attributes,
                                     &slot, &driver);
     if (status != PSA_SUCCESS) {
@@ -7624,8 +7525,9 @@
     }
 
     status = psa_driver_wrapper_generate_key(attributes,
-                                             slot->key.data, slot->key.bytes, &slot->key.bytes);
-
+                                             params, params_data_length,
+                                             slot->key.data, slot->key.bytes,
+                                             &slot->key.bytes);
     if (status != PSA_SUCCESS) {
         psa_remove_key_data_from_memory(slot);
     }
@@ -7641,6 +7543,14 @@
     return status;
 }
 
+psa_status_t psa_generate_key(const psa_key_attributes_t *attributes,
+                              mbedtls_svc_key_id_t *key)
+{
+    return psa_generate_key_ext(attributes,
+                                &default_production_parameters, 0,
+                                key);
+}
+
 /****************************************************************/
 /* Module setup */
 /****************************************************************/
diff --git a/library/psa_crypto_client.c b/library/psa_crypto_client.c
index 472d3d3..72f671d 100644
--- a/library/psa_crypto_client.c
+++ b/library/psa_crypto_client.c
@@ -16,57 +16,7 @@
 
 void psa_reset_key_attributes(psa_key_attributes_t *attributes)
 {
-    mbedtls_free(attributes->domain_parameters);
     memset(attributes, 0, sizeof(*attributes));
 }
 
-psa_status_t psa_set_key_domain_parameters(psa_key_attributes_t *attributes,
-                                           psa_key_type_t type,
-                                           const uint8_t *data,
-                                           size_t data_length)
-{
-    uint8_t *copy = NULL;
-
-    if (data_length != 0) {
-        copy = mbedtls_calloc(1, data_length);
-        if (copy == NULL) {
-            return PSA_ERROR_INSUFFICIENT_MEMORY;
-        }
-        memcpy(copy, data, data_length);
-    }
-    /* After this point, this function is guaranteed to succeed, so it
-     * can start modifying `*attributes`. */
-
-    if (attributes->domain_parameters != NULL) {
-        mbedtls_free(attributes->domain_parameters);
-        attributes->domain_parameters = NULL;
-        attributes->domain_parameters_size = 0;
-    }
-
-    attributes->domain_parameters = copy;
-    attributes->domain_parameters_size = data_length;
-    attributes->core.type = type;
-    return PSA_SUCCESS;
-}
-
-psa_status_t psa_get_key_domain_parameters(
-    const psa_key_attributes_t *attributes,
-    uint8_t *data, size_t data_size, size_t *data_length)
-{
-    if (attributes->domain_parameters == NULL &&
-        attributes->domain_parameters_size == SIZE_MAX) {
-        return PSA_ERROR_NOT_SUPPORTED;
-    }
-
-    if (attributes->domain_parameters_size > data_size) {
-        return PSA_ERROR_BUFFER_TOO_SMALL;
-    }
-    *data_length = attributes->domain_parameters_size;
-    if (attributes->domain_parameters_size != 0) {
-        memcpy(data, attributes->domain_parameters,
-               attributes->domain_parameters_size);
-    }
-    return PSA_SUCCESS;
-}
-
 #endif /* MBEDTLS_PSA_CRYPTO_CLIENT */
diff --git a/library/psa_crypto_core.h b/library/psa_crypto_core.h
index 0d7322c..afa8659 100644
--- a/library/psa_crypto_core.h
+++ b/library/psa_crypto_core.h
@@ -398,6 +398,18 @@
     const uint8_t *key_buffer, size_t key_buffer_size,
     uint8_t *data, size_t data_size, size_t *data_length);
 
+/** Whether a key production parameters structure is the default.
+ *
+ * Calls to a key generation driver with non-default production parameters
+ * require a driver supporting custom production parameters.
+ *
+ * \param[in] params            The key production parameters to check.
+ * \param params_data_length    Size of `params->data` in bytes.
+ */
+int psa_key_production_parameters_are_default(
+    const psa_key_production_parameters_t *params,
+    size_t params_data_length);
+
 /**
  * \brief Generate a key.
  *
@@ -405,6 +417,9 @@
  *       entry point.
  *
  * \param[in]  attributes         The attributes for the key to generate.
+ * \param[in]  params             The production parameters from
+ *                                psa_generate_key_ext().
+ * \param      params_data_length The size of `params->data` in bytes.
  * \param[out] key_buffer         Buffer where the key data is to be written.
  * \param[in]  key_buffer_size    Size of \p key_buffer in bytes.
  * \param[out] key_buffer_length  On success, the number of bytes written in
@@ -419,6 +434,8 @@
  *         The size of \p key_buffer is too small.
  */
 psa_status_t psa_generate_key_internal(const psa_key_attributes_t *attributes,
+                                       const psa_key_production_parameters_t *params,
+                                       size_t params_data_length,
                                        uint8_t *key_buffer,
                                        size_t key_buffer_size,
                                        size_t *key_buffer_length);
diff --git a/library/psa_crypto_ecp.c b/library/psa_crypto_ecp.c
index db08541..7edea81 100644
--- a/library/psa_crypto_ecp.c
+++ b/library/psa_crypto_ecp.c
@@ -345,10 +345,6 @@
         mbedtls_ecp_curve_info_from_grp_id(grp_id);
     mbedtls_ecp_keypair ecp;
 
-    if (attributes->domain_parameters_size != 0) {
-        return PSA_ERROR_NOT_SUPPORTED;
-    }
-
     if (grp_id == MBEDTLS_ECP_DP_NONE || curve_info == NULL) {
         return PSA_ERROR_NOT_SUPPORTED;
     }
diff --git a/library/psa_crypto_rsa.c b/library/psa_crypto_rsa.c
index 4a574d1..84a8667 100644
--- a/library/psa_crypto_rsa.c
+++ b/library/psa_crypto_rsa.c
@@ -216,26 +216,21 @@
         * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */
 
 #if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
-static psa_status_t psa_rsa_read_exponent(const uint8_t *domain_parameters,
-                                          size_t domain_parameters_size,
+static psa_status_t psa_rsa_read_exponent(const uint8_t *e_bytes,
+                                          size_t e_length,
                                           int *exponent)
 {
     size_t i;
     uint32_t acc = 0;
 
-    if (domain_parameters_size == 0) {
-        *exponent = 65537;
-        return PSA_SUCCESS;
-    }
-
     /* Mbed TLS encodes the public exponent as an int. For simplicity, only
      * support values that fit in a 32-bit integer, which is larger than
      * int on just about every platform anyway. */
-    if (domain_parameters_size > sizeof(acc)) {
+    if (e_length > sizeof(acc)) {
         return PSA_ERROR_NOT_SUPPORTED;
     }
-    for (i = 0; i < domain_parameters_size; i++) {
-        acc = (acc << 8) | domain_parameters[i];
+    for (i = 0; i < e_length; i++) {
+        acc = (acc << 8) | e_bytes[i];
     }
     if (acc > INT_MAX) {
         return PSA_ERROR_NOT_SUPPORTED;
@@ -246,18 +241,20 @@
 
 psa_status_t mbedtls_psa_rsa_generate_key(
     const psa_key_attributes_t *attributes,
+    const psa_key_production_parameters_t *params, size_t params_data_length,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length)
 {
     psa_status_t status;
     mbedtls_rsa_context rsa;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    int exponent;
+    int exponent = 65537;
 
-    status = psa_rsa_read_exponent(attributes->domain_parameters,
-                                   attributes->domain_parameters_size,
-                                   &exponent);
-    if (status != PSA_SUCCESS) {
-        return status;
+    if (params_data_length != 0) {
+        status = psa_rsa_read_exponent(params->data, params_data_length,
+                                       &exponent);
+        if (status != PSA_SUCCESS) {
+            return status;
+        }
     }
 
     mbedtls_rsa_init(&rsa);
diff --git a/library/psa_crypto_rsa.h b/library/psa_crypto_rsa.h
index e4c5caf..ffeef26 100644
--- a/library/psa_crypto_rsa.h
+++ b/library/psa_crypto_rsa.h
@@ -109,6 +109,15 @@
  *       entry point.
  *
  * \param[in]  attributes         The attributes for the RSA key to generate.
+ * \param[in]  params             Production parameters for the key
+ *                                generation. This function only uses
+ *                                `params->data`,
+ *                                which contains the public exponent.
+ *                                This can be a null pointer if
+ *                                \c params_data_length is 0.
+ * \param params_data_length      Length of `params->data` in bytes.
+ *                                This can be 0, in which case the
+ *                                public exponent will be 65537.
  * \param[out] key_buffer         Buffer where the key data is to be written.
  * \param[in]  key_buffer_size    Size of \p key_buffer in bytes.
  * \param[out] key_buffer_length  On success, the number of bytes written in
@@ -123,6 +132,7 @@
  */
 psa_status_t mbedtls_psa_rsa_generate_key(
     const psa_key_attributes_t *attributes,
+    const psa_key_production_parameters_t *params, size_t params_data_length,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length);
 
 /** Sign an already-calculated hash with an RSA private key.
diff --git a/library/ssl_debug_helpers.h b/library/ssl_debug_helpers.h
index 2b0e737..a8e3140 100644
--- a/library/ssl_debug_helpers.h
+++ b/library/ssl_debug_helpers.h
@@ -21,6 +21,10 @@
 
 const char *mbedtls_ssl_states_str(mbedtls_ssl_states in);
 
+#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C)
+const char *mbedtls_ssl_early_data_status_str(mbedtls_ssl_early_data_status in);
+#endif
+
 const char *mbedtls_ssl_protocol_version_str(mbedtls_ssl_protocol_version in);
 
 const char *mbedtls_tls_prf_types_str(mbedtls_tls_prf_types in);
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 942d4ad..d8844fc 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -665,21 +665,21 @@
 #if defined(MBEDTLS_SSL_CLI_C)
     /** Minimum TLS version to be negotiated.
      *
-     *  It is set up in the ClientHello writing preparation stage and used
-     *  throughout the ClientHello writing. Not relevant anymore as soon as
-     *  the protocol version has been negotiated thus as soon as the
-     *  ServerHello is received.
-     *  For a fresh handshake not linked to any previous handshake, it is
-     *  equal to the configured minimum minor version to be negotiated. When
-     *  renegotiating or resuming a session, it is equal to the previously
-     *  negotiated minor version.
+     * It is set up in the ClientHello writing preparation stage and used
+     * throughout the ClientHello writing. Not relevant anymore as soon as
+     * the protocol version has been negotiated thus as soon as the
+     * ServerHello is received.
+     * For a fresh handshake not linked to any previous handshake, it is
+     * equal to the configured minimum minor version to be negotiated. When
+     * renegotiating or resuming a session, it is equal to the previously
+     * negotiated minor version.
      *
-     *  There is no maximum TLS version field in this handshake context.
-     *  From the start of the handshake, we need to define a current protocol
-     *  version for the record layer which we define as the maximum TLS
-     *  version to be negotiated. The `tls_version` field of the SSL context is
-     *  used to store this maximum value until it contains the actual
-     *  negotiated value.
+     * There is no maximum TLS version field in this handshake context.
+     * From the start of the handshake, we need to define a current protocol
+     * version for the record layer which we define as the maximum TLS
+     * version to be negotiated. The `tls_version` field of the SSL context is
+     * used to store this maximum value until it contains the actual
+     * negotiated value.
      */
     mbedtls_ssl_protocol_version min_tls_version;
 #endif
@@ -730,16 +730,21 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
     uint8_t key_exchange_mode; /*!< Selected key exchange mode */
 
-    /** Number of HelloRetryRequest messages received/sent from/to the server. */
-    uint8_t hello_retry_request_count;
+    /**
+     * Flag indicating if, in the course of the current handshake, an
+     * HelloRetryRequest message has been sent by the server or received by
+     * the client (<> 0) or not (0).
+     */
+    uint8_t hello_retry_request_flag;
 
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
     /**
-     *  Number of dummy change_cipher_spec (CCS) record sent. Used to send only
-     *  one CCS per handshake without having to complicate the handshake state
-     *  transitions.
+     * Flag indicating if, in the course of the current handshake, a dummy
+     * change_cipher_spec (CCS) record has already been sent. Used to send only
+     * one CCS per handshake while not complicating the handshake state
+     * transitions for that purpose.
      */
-    uint8_t ccs_count;
+    uint8_t ccs_sent;
 #endif
 
 #if defined(MBEDTLS_SSL_SRV_C)
@@ -2145,38 +2150,6 @@
                                            unsigned char *buf,
                                            const unsigned char *end,
                                            size_t *out_len);
-
-#if defined(MBEDTLS_SSL_CLI_C)
-/*
- * The client has not sent the first ClientHello yet, it is unknown if the
- * client will send an early data indication extension or not.
- */
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN 0
-
-/*
- * The client has sent an early data indication extension in its first
- * ClientHello, it has not received the response (ServerHello or
- * HelloRetryRequest) from the server yet. The transform to protect early data
- * is not set and early data cannot be sent yet.
- */
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_SENT 4
-
-/*
- * The client has sent an early data indication extension in its first
- * ClientHello, it has not received the response (ServerHello or
- * HelloRetryRequest) from the server yet. The transform to protect early data
- * has been set and early data can be written now.
- */
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE 5
-
-/*
- * The client has sent an early data indication extension in its first
- * ClientHello, the server has accepted them and the client has received the
- * server Finished message. It cannot send early data to the server anymore.
- */
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_SERVER_FINISHED_RECEIVED 6
-#endif /* MBEDTLS_SSL_CLI_C */
-
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
diff --git a/library/ssl_msg.c b/library/ssl_msg.c
index c2e64c6..2a6d434 100644
--- a/library/ssl_msg.c
+++ b/library/ssl_msg.c
@@ -6058,6 +6058,94 @@
     return ret;
 }
 
+#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C)
+int mbedtls_ssl_write_early_data(mbedtls_ssl_context *ssl,
+                                 const unsigned char *buf, size_t len)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    const struct mbedtls_ssl_config *conf;
+    int written_data_len = 0;
+
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write early_data"));
+
+    if (ssl == NULL || (conf = ssl->conf) == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    if (conf->endpoint != MBEDTLS_SSL_IS_CLIENT) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    if ((!mbedtls_ssl_conf_is_tls13_enabled(conf)) ||
+        (conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) ||
+        (conf->early_data_enabled != MBEDTLS_SSL_EARLY_DATA_ENABLED)) {
+        return MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA;
+    }
+
+    if (ssl->tls_version != MBEDTLS_SSL_VERSION_TLS1_3) {
+        return MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA;
+    }
+
+    /*
+     * If we are at the beginning of the handshake, the early data status being
+     * equal to MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN or
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_SENT advance the handshake just
+     * enough to be able to send early data if possible. That way, we can
+     * guarantee that when starting the handshake with this function we will
+     * send at least one record of early data. Note that when the status is
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_SENT and not yet
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE, we cannot send early data yet
+     * as the early data outbound transform has not been set as we may have to
+     * first send a dummy CCS in clear.
+     */
+    if ((ssl->early_data_status == MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN) ||
+        (ssl->early_data_status == MBEDTLS_SSL_EARLY_DATA_STATUS_SENT)) {
+        while ((ssl->early_data_status == MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN) ||
+               (ssl->early_data_status == MBEDTLS_SSL_EARLY_DATA_STATUS_SENT)) {
+            ret = mbedtls_ssl_handshake_step(ssl);
+            if (ret != 0) {
+                MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_handshake_step", ret);
+                return ret;
+            }
+
+            ret = mbedtls_ssl_flush_output(ssl);
+            if (ret != 0) {
+                MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_flush_output", ret);
+                return ret;
+            }
+        }
+    } else {
+        /*
+         * If we are past the point where we can send early data, return
+         * immediatly. Otherwise, progress the handshake as much as possible to
+         * not delay it too much. If we reach a point where we can still send
+         * early data, then we will send some.
+         */
+        if ((ssl->early_data_status != MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE) &&
+            (ssl->early_data_status != MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED)) {
+            return MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA;
+        }
+
+        ret = mbedtls_ssl_handshake(ssl);
+        if ((ret != 0) && (ret != MBEDTLS_ERR_SSL_WANT_READ)) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_handshake", ret);
+            return ret;
+        }
+    }
+
+    if ((ssl->early_data_status != MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE) &&
+        (ssl->early_data_status != MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED)) {
+        return MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA;
+    }
+
+    written_data_len = ssl_write_real(ssl, buf, len);
+
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write early_data, len=%d", written_data_len));
+
+    return written_data_len;
+}
+#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_CLI_C */
+
 /*
  * Notify the peer that the connection is being closed
  */
diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index 1e8df1b..88d6c9e 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -1180,7 +1180,15 @@
 #endif
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
-    if (ssl->handshake->hello_retry_request_count == 0) {
+    /* In the first ClientHello, write the early data indication extension if
+     * necessary and update the early data status.
+     * If an HRR has been received and thus we are currently writing the
+     * second ClientHello, the second ClientHello must not contain an early
+     * data extension and the early data status must stay as it is:
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT or
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED.
+     */
+    if (!ssl->handshake->hello_retry_request_flag) {
         if (mbedtls_ssl_conf_tls13_is_some_psk_enabled(ssl) &&
             ssl_tls13_early_data_has_valid_ticket(ssl) &&
             ssl->conf->early_data_enabled == MBEDTLS_SSL_EARLY_DATA_ENABLED) {
@@ -1495,7 +1503,7 @@
              * to a HelloRetryRequest), it MUST abort the handshake with an
              * "unexpected_message" alert.
              */
-            if (handshake->hello_retry_request_count > 0) {
+            if (handshake->hello_retry_request_flag) {
                 MBEDTLS_SSL_DEBUG_MSG(1, ("Multiple HRRs received"));
                 MBEDTLS_SSL_PEND_FATAL_ALERT(
                     MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE,
@@ -1517,7 +1525,7 @@
                 return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
             }
 
-            handshake->hello_retry_request_count++;
+            handshake->hello_retry_request_flag = 1;
 
             break;
     }
@@ -1672,7 +1680,7 @@
      * proposed in the HRR, we abort the handshake and send an
      * "illegal_parameter" alert.
      */
-    else if ((!is_hrr) && (handshake->hello_retry_request_count > 0) &&
+    else if ((!is_hrr) && handshake->hello_retry_request_flag &&
              (cipher_suite != ssl->session_negotiate->ciphersuite)) {
         fatal_alert = MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER;
     }
@@ -2270,6 +2278,7 @@
 
 }
 
+#if defined(MBEDTLS_SSL_EARLY_DATA)
 /*
  * Handler for MBEDTLS_SSL_END_OF_EARLY_DATA
  *
@@ -2308,6 +2317,32 @@
     return ret;
 }
 
+int mbedtls_ssl_get_early_data_status(mbedtls_ssl_context *ssl)
+{
+    if ((ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT) ||
+        (!mbedtls_ssl_is_handshake_over(ssl))) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    switch (ssl->early_data_status) {
+        case MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT:
+            return MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT;
+            break;
+
+        case MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED:
+            return MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED;
+            break;
+
+        case MBEDTLS_SSL_EARLY_DATA_STATUS_SERVER_FINISHED_RECEIVED:
+            return MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED;
+            break;
+
+        default:
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
+    }
+}
+#endif /* MBEDTLS_SSL_EARLY_DATA */
+
 #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED)
 /*
  * STATE HANDLING: CertificateRequest
@@ -3030,9 +3065,11 @@
             ret = ssl_tls13_process_server_finished(ssl);
             break;
 
+#if defined(MBEDTLS_SSL_EARLY_DATA)
         case MBEDTLS_SSL_END_OF_EARLY_DATA:
             ret = ssl_tls13_write_end_of_early_data(ssl);
             break;
+#endif
 
         case MBEDTLS_SSL_CLIENT_CERTIFICATE:
             ret = ssl_tls13_write_client_certificate(ssl);
@@ -3061,23 +3098,17 @@
              */
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
         case MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO:
-            ret = 0;
-            if (ssl->handshake->ccs_count == 0) {
-                ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
-                if (ret != 0) {
-                    break;
-                }
+            ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
+            if (ret != 0) {
+                break;
             }
             mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_CLIENT_HELLO);
             break;
 
         case MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED:
-            ret = 0;
-            if (ssl->handshake->ccs_count == 0) {
-                ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
-                if (ret != 0) {
-                    break;
-                }
+            ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
+            if (ret != 0) {
+                break;
             }
             mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_CLIENT_CERTIFICATE);
             break;
diff --git a/library/ssl_tls13_generic.c b/library/ssl_tls13_generic.c
index 064f616..bc73704 100644
--- a/library/ssl_tls13_generic.c
+++ b/library/ssl_tls13_generic.c
@@ -1379,6 +1379,12 @@
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> write change cipher spec"));
 
+    /* Only one CCS to send. */
+    if (ssl->handshake->ccs_sent) {
+        ret = 0;
+        goto cleanup;
+    }
+
     /* Write CCS message */
     MBEDTLS_SSL_PROC_CHK(ssl_tls13_write_change_cipher_spec_body(
                              ssl, ssl->out_msg,
@@ -1390,7 +1396,7 @@
     /* Dispatch message */
     MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_write_record(ssl, 0));
 
-    ssl->handshake->ccs_count++;
+    ssl->handshake->ccs_sent = 1;
 
 cleanup:
 
diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index 1411446..3a968aa 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -1531,7 +1531,7 @@
         const unsigned char *extension_data_end;
         uint32_t allowed_exts = MBEDTLS_SSL_TLS1_3_ALLOWED_EXTS_OF_CH;
 
-        if (ssl->handshake->hello_retry_request_count > 0) {
+        if (ssl->handshake->hello_retry_request_flag) {
             /* Do not accept early data extension in 2nd ClientHello */
             allowed_exts &= ~MBEDTLS_SSL_EXT_MASK(EARLY_DATA);
         }
@@ -2427,7 +2427,7 @@
 static int ssl_tls13_prepare_hello_retry_request(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    if (ssl->handshake->hello_retry_request_count > 0) {
+    if (ssl->handshake->hello_retry_request_flag) {
         MBEDTLS_SSL_DEBUG_MSG(1, ("Too many HRRs"));
         MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE,
                                      MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE);
@@ -2474,7 +2474,7 @@
     MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_finish_handshake_msg(ssl, buf_len,
                                                           msg_len));
 
-    ssl->handshake->hello_retry_request_count++;
+    ssl->handshake->hello_retry_request_flag = 1;
 
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
     /* The server sends a dummy change_cipher_spec record immediately
@@ -3477,12 +3477,9 @@
             break;
 
         case MBEDTLS_SSL_SERVER_CCS_AFTER_SERVER_HELLO:
-            ret = 0;
-            if (ssl->handshake->ccs_count == 0) {
-                ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
-                if (ret != 0) {
-                    break;
-                }
+            ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
+            if (ret != 0) {
+                break;
             }
             mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_ENCRYPTED_EXTENSIONS);
             break;
diff --git a/library/x509_internal.h b/library/x509_internal.h
index 15e097a..8a2d2ed 100644
--- a/library/x509_internal.h
+++ b/library/x509_internal.h
@@ -21,133 +21,6 @@
 #include "mbedtls/rsa.h"
 #endif
 
-/**
- * \brief          Return the next relative DN in an X509 name.
- *
- * \note           Intended use is to compare function result to dn->next
- *                 in order to detect boundaries of multi-valued RDNs.
- *
- * \param dn       Current node in the X509 name
- *
- * \return         Pointer to the first attribute-value pair of the
- *                 next RDN in sequence, or NULL if end is reached.
- */
-static inline mbedtls_x509_name *mbedtls_x509_dn_get_next(
-    mbedtls_x509_name *dn)
-{
-    while (dn->MBEDTLS_PRIVATE(next_merged) && dn->next != NULL) {
-        dn = dn->next;
-    }
-    return dn->next;
-}
-
-/**
- * \brief          Store the certificate serial in printable form into buf;
- *                 no more than size characters will be written.
- *
- * \param buf      Buffer to write to
- * \param size     Maximum size of buffer
- * \param serial   The X509 serial to represent
- *
- * \return         The length of the string written (not including the
- *                 terminated nul byte), or a negative error code.
- */
-int mbedtls_x509_serial_gets(char *buf, size_t size, const mbedtls_x509_buf *serial);
-
-/**
- * \brief          Compare pair of mbedtls_x509_time.
- *
- * \param t1       mbedtls_x509_time to compare
- * \param t2       mbedtls_x509_time to compare
- *
- * \return         < 0 if t1 is before t2
- *                   0 if t1 equals t2
- *                 > 0 if t1 is after t2
- */
-int mbedtls_x509_time_cmp(const mbedtls_x509_time *t1, const mbedtls_x509_time *t2);
-
-#if defined(MBEDTLS_HAVE_TIME_DATE)
-/**
- * \brief          Fill mbedtls_x509_time with provided mbedtls_time_t.
- *
- * \param tt       mbedtls_time_t to convert
- * \param now      mbedtls_x509_time to fill with converted mbedtls_time_t
- *
- * \return         \c 0 on success
- * \return         A non-zero return value on failure.
- */
-int mbedtls_x509_time_gmtime(mbedtls_time_t tt, mbedtls_x509_time *now);
-#endif /* MBEDTLS_HAVE_TIME_DATE */
-
-/**
- * \brief          Check a given mbedtls_x509_time against the system time
- *                 and tell if it's in the past.
- *
- * \note           Intended usage is "if( is_past( valid_to ) ) ERROR".
- *                 Hence the return value of 1 if on internal errors.
- *
- * \param to       mbedtls_x509_time to check
- *
- * \return         1 if the given time is in the past or an error occurred,
- *                 0 otherwise.
- */
-int mbedtls_x509_time_is_past(const mbedtls_x509_time *to);
-
-/**
- * \brief          Check a given mbedtls_x509_time against the system time
- *                 and tell if it's in the future.
- *
- * \note           Intended usage is "if( is_future( valid_from ) ) ERROR".
- *                 Hence the return value of 1 if on internal errors.
- *
- * \param from     mbedtls_x509_time to check
- *
- * \return         1 if the given time is in the future or an error occurred,
- *                 0 otherwise.
- */
-int mbedtls_x509_time_is_future(const mbedtls_x509_time *from);
-
-/**
- * \brief          This function parses an item in the SubjectAlternativeNames
- *                 extension. Please note that this function might allocate
- *                 additional memory for a subject alternative name, thus
- *                 mbedtls_x509_free_subject_alt_name has to be called
- *                 to dispose of this additional memory afterwards.
- *
- * \param san_buf  The buffer holding the raw data item of the subject
- *                 alternative name.
- * \param san      The target structure to populate with the parsed presentation
- *                 of the subject alternative name encoded in \p san_buf.
- *
- * \note           Supported GeneralName types, as defined in RFC 5280:
- *                 "rfc822Name", "dnsName", "directoryName",
- *                 "uniformResourceIdentifier" and "hardware_module_name"
- *                 of type "otherName", as defined in RFC 4108.
- *
- * \note           This function should be called on a single raw data of
- *                 subject alternative name. For example, after successful
- *                 certificate parsing, one must iterate on every item in the
- *                 \c crt->subject_alt_names sequence, and pass it to
- *                 this function.
- *
- * \warning        The target structure contains pointers to the raw data of the
- *                 parsed certificate, and its lifetime is restricted by the
- *                 lifetime of the certificate.
- *
- * \return         \c 0 on success
- * \return         #MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE for an unsupported
- *                 SAN type.
- * \return         Another negative value for any other failure.
- */
-int mbedtls_x509_parse_subject_alt_name(const mbedtls_x509_buf *san_buf,
-                                        mbedtls_x509_subject_alternative_name *san);
-/**
- * \brief          Unallocate all data related to subject alternative name
- *
- * \param san      SAN structure - extra memory owned by this structure will be freed
- */
-void mbedtls_x509_free_subject_alt_name(mbedtls_x509_subject_alternative_name *san);
-
 int mbedtls_x509_get_name(unsigned char **p, const unsigned char *end,
                           mbedtls_x509_name *cur);
 int mbedtls_x509_get_alg_null(unsigned char **p, const unsigned char *end,
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index f5768b1..332befd 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -52,7 +52,7 @@
 #define DFL_KEY_OPAQUE          0
 #define DFL_KEY_PWD             ""
 #define DFL_PSK                 ""
-#define DFL_EARLY_DATA          ""
+#define DFL_EARLY_DATA          -1
 #define DFL_PSK_OPAQUE          0
 #define DFL_PSK_IDENTITY        "Client_identity"
 #define DFL_ECJPAKE_PW          NULL
@@ -347,9 +347,8 @@
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
 #define USAGE_EARLY_DATA \
-    "    early_data=%%s      The file path to read early data from\n" \
-    "                        default: \"\" (do nothing)\n"            \
-    "                        option: a file path\n"
+    "    early_data=%%d      default: library default\n" \
+    "                        options: 0 (disabled), 1 (enabled)\n"
 #else
 #define USAGE_EARLY_DATA ""
 #endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_PROTO_TLS1_3 */
@@ -544,7 +543,7 @@
     int reproducible;           /* make communication reproducible          */
     int skip_close_notify;      /* skip sending the close_notify alert      */
 #if defined(MBEDTLS_SSL_EARLY_DATA)
-    const char *early_data;     /* the path of the file to read early data from */
+    int early_data;             /* early data enablement flag               */
 #endif
     int query_config_mode;      /* whether to read config                   */
     int use_srtp;               /* Support SRTP                             */
@@ -717,9 +716,64 @@
     return ret;
 }
 
+/*
+ * Build HTTP request
+ */
+static int build_http_request(unsigned char *buf, size_t buf_size, size_t *request_len)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    size_t len, tail_len, request_size;
+
+    ret = mbedtls_snprintf((char *) buf, buf_size, GET_REQUEST, opt.request_page);
+    if (ret < 0) {
+        return ret;
+    }
+
+    len = (size_t) ret;
+    tail_len = strlen(GET_REQUEST_END);
+    if (opt.request_size != DFL_REQUEST_SIZE) {
+        request_size = (size_t) opt.request_size;
+    } else {
+        request_size = len + tail_len;
+    }
+
+    if (request_size > buf_size) {
+        return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
+    }
+
+    /* Add padding to GET request to reach opt.request_size in length */
+    if (opt.request_size != DFL_REQUEST_SIZE &&
+        len + tail_len < request_size) {
+        memset(buf + len, 'A', request_size - len - tail_len);
+        len = request_size - tail_len;
+    }
+
+    strncpy((char *) buf + len, GET_REQUEST_END, buf_size - len);
+    len += tail_len;
+
+    /* Truncate if request size is smaller than the "natural" size */
+    if (opt.request_size != DFL_REQUEST_SIZE &&
+        len > request_size) {
+        len = request_size;
+
+        /* Still end with \r\n unless that's really not possible */
+        if (len >= 2) {
+            buf[len - 2] = '\r';
+        }
+        if (len >= 1) {
+            buf[len - 1] = '\n';
+        }
+    }
+
+    *request_len = len;
+
+    return 0;
+}
+
 int main(int argc, char *argv[])
 {
-    int ret = 0, len, tail_len, i, written, frags, retry_left;
+    int ret = 0, i;
+    size_t len, written, frags, retry_left;
     int query_config_ret = 0;
     mbedtls_net_context server_fd;
     io_ctx_t io_ctx;
@@ -742,10 +796,6 @@
     size_t cid_renego_len = 0;
 #endif
 
-#if defined(MBEDTLS_SSL_EARLY_DATA)
-    FILE *early_data_fp = NULL;
-#endif /* MBEDTLS_SSL_EARLY_DATA */
-
 #if defined(MBEDTLS_SSL_ALPN)
     const char *alpn_list[ALPN_LIST_SIZE];
 #endif
@@ -1201,7 +1251,15 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
 #if defined(MBEDTLS_SSL_EARLY_DATA)
         else if (strcmp(p, "early_data") == 0) {
-            opt.early_data = q;
+            switch (atoi(q)) {
+                case 0:
+                    opt.early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
+                    break;
+                case 1:
+                    opt.early_data = MBEDTLS_SSL_EARLY_DATA_ENABLED;
+                    break;
+                default: goto usage;
+            }
         }
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
@@ -1967,16 +2025,9 @@
     }
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
-    int early_data_enabled = MBEDTLS_SSL_EARLY_DATA_DISABLED;
-    if (strlen(opt.early_data) > 0) {
-        if ((early_data_fp = fopen(opt.early_data, "rb")) == NULL) {
-            mbedtls_printf("failed\n  ! Cannot open '%s' for reading.\n",
-                           opt.early_data);
-            goto exit;
-        }
-        early_data_enabled = MBEDTLS_SSL_EARLY_DATA_ENABLED;
+    if (opt.early_data != DFL_EARLY_DATA) {
+        mbedtls_ssl_conf_early_data(&conf, opt.early_data);
     }
-    mbedtls_ssl_conf_early_data(&conf, early_data_enabled);
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
     if ((ret = mbedtls_ssl_setup(&ssl, &conf)) != 0) {
@@ -2447,32 +2498,9 @@
     mbedtls_printf("  > Write to server:");
     fflush(stdout);
 
-    len = mbedtls_snprintf((char *) buf, sizeof(buf) - 1, GET_REQUEST,
-                           opt.request_page);
-    tail_len = (int) strlen(GET_REQUEST_END);
-
-    /* Add padding to GET request to reach opt.request_size in length */
-    if (opt.request_size != DFL_REQUEST_SIZE &&
-        len + tail_len < opt.request_size) {
-        memset(buf + len, 'A', opt.request_size - len - tail_len);
-        len += opt.request_size - len - tail_len;
-    }
-
-    strncpy((char *) buf + len, GET_REQUEST_END, sizeof(buf) - len - 1);
-    len += tail_len;
-
-    /* Truncate if request size is smaller than the "natural" size */
-    if (opt.request_size != DFL_REQUEST_SIZE &&
-        len > opt.request_size) {
-        len = opt.request_size;
-
-        /* Still end with \r\n unless that's really not possible */
-        if (len >= 2) {
-            buf[len - 2] = '\r';
-        }
-        if (len >= 1) {
-            buf[len - 1] = '\n';
-        }
+    ret = build_http_request(buf, sizeof(buf) - 1, &len);
+    if (ret != 0) {
+        goto exit;
     }
 
     if (opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM) {
@@ -2544,8 +2572,11 @@
     }
 
     buf[written] = '\0';
-    mbedtls_printf(" %d bytes written in %d fragments\n\n%s\n",
-                   written, frags, (char *) buf);
+    mbedtls_printf(
+        " %" MBEDTLS_PRINTF_SIZET " bytes written in %" MBEDTLS_PRINTF_SIZET " fragments\n\n%s\n",
+        written,
+        frags,
+        (char *) buf);
 
     /* Send a non-empty request if request_size == 0 */
     if (len == 0) {
@@ -2652,7 +2683,9 @@
 
             len = ret;
             buf[len] = '\0';
-            mbedtls_printf("  < Read from server: %d bytes read\n\n%s", len, (char *) buf);
+            mbedtls_printf("  < Read from server: %" MBEDTLS_PRINTF_SIZET " bytes read\n\n%s",
+                           len,
+                           (char *) buf);
             fflush(stdout);
             /* End of message should be detected according to the syntax of the
              * application protocol (eg HTTP), just use a dummy test here. */
@@ -2711,7 +2744,9 @@
 
         len = ret;
         buf[len] = '\0';
-        mbedtls_printf("  < Read from server: %d bytes read\n\n%s", len, (char *) buf);
+        mbedtls_printf("  < Read from server: %" MBEDTLS_PRINTF_SIZET " bytes read\n\n%s",
+                       len,
+                       (char *) buf);
         ret = 0;
     }
 
@@ -3001,6 +3036,54 @@
             goto exit;
         }
 
+        ret = build_http_request(buf, sizeof(buf) - 1, &len);
+        if (ret != 0) {
+            goto exit;
+        }
+
+#if defined(MBEDTLS_SSL_EARLY_DATA)
+        if (ssl.conf->early_data_enabled == MBEDTLS_SSL_EARLY_DATA_ENABLED) {
+            frags = 0;
+            written = 0;
+            do {
+                while ((ret = mbedtls_ssl_write_early_data(&ssl, buf + written,
+                                                           len - written)) < 0) {
+                    if (ret == MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA) {
+                        goto end_of_early_data;
+                    }
+                    if (ret != MBEDTLS_ERR_SSL_WANT_READ &&
+                        ret != MBEDTLS_ERR_SSL_WANT_WRITE &&
+                        ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) {
+                        mbedtls_printf(" failed\n  ! mbedtls_ssl_write returned -0x%x\n\n",
+                                       (unsigned int) -ret);
+                        goto exit;
+                    }
+
+                    /* For event-driven IO, wait for socket to become available */
+                    if (opt.event == 1 /* level triggered IO */) {
+#if defined(MBEDTLS_TIMING_C)
+                        idle(&server_fd, &timer, ret);
+#else
+                        idle(&server_fd, ret);
+#endif
+                    }
+                }
+
+                frags++;
+                written += ret;
+            } while (written < len);
+        }
+
+end_of_early_data:
+
+        buf[written] = '\0';
+        mbedtls_printf(
+            " %" MBEDTLS_PRINTF_SIZET " bytes of early data written in %" MBEDTLS_PRINTF_SIZET " fragments\n\n%s\n",
+            written,
+            frags,
+            (char *) buf);
+#endif /* MBEDTLS_SSL_EARLY_DATA */
+
         while ((ret = mbedtls_ssl_handshake(&ssl)) != 0) {
             if (ret != MBEDTLS_ERR_SSL_WANT_READ &&
                 ret != MBEDTLS_ERR_SSL_WANT_WRITE &&
@@ -3034,12 +3117,6 @@
     mbedtls_ssl_config_free(&conf);
     mbedtls_ssl_session_free(&saved_session);
 
-#if defined(MBEDTLS_SSL_EARLY_DATA)
-    if (early_data_fp != NULL) {
-        fclose(early_data_fp);
-    }
-#endif
-
     if (session_data != NULL) {
         mbedtls_platform_zeroize(session_data, session_data_len);
     }
diff --git a/scripts/data_files/driver_templates/psa_crypto_driver_wrappers.h.jinja b/scripts/data_files/driver_templates/psa_crypto_driver_wrappers.h.jinja
index 924b08c..4f9764d 100644
--- a/scripts/data_files/driver_templates/psa_crypto_driver_wrappers.h.jinja
+++ b/scripts/data_files/driver_templates/psa_crypto_driver_wrappers.h.jinja
@@ -731,12 +731,27 @@
 
 static inline psa_status_t psa_driver_wrapper_generate_key(
     const psa_key_attributes_t *attributes,
+    const psa_key_production_parameters_t *params, size_t params_data_length,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length )
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
         PSA_KEY_LIFETIME_GET_LOCATION(attributes->core.lifetime);
 
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
+    int is_default_production =
+        psa_key_production_parameters_are_default(params, params_data_length);
+    if( location != PSA_KEY_LOCATION_LOCAL_STORAGE && !is_default_production )
+    {
+        /* We don't support passing custom production parameters
+         * to drivers yet. */
+        return PSA_ERROR_NOT_SUPPORTED;
+    }
+#else
+    int is_default_production = 1;
+    (void) is_default_production;
+#endif
+
     /* Try dynamically-registered SE interface first */
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
     const psa_drv_se_t *drv;
@@ -762,8 +777,11 @@
     {
         case PSA_KEY_LOCATION_LOCAL_STORAGE:
 #if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
-            /* Transparent drivers are limited to generating asymmetric keys */
-            if( PSA_KEY_TYPE_IS_ASYMMETRIC( attributes->core.type ) )
+            /* Transparent drivers are limited to generating asymmetric keys. */
+            /* We don't support passing custom production parameters
+             * to drivers yet. */
+            if( PSA_KEY_TYPE_IS_ASYMMETRIC( attributes->core.type ) &&
+                is_default_production )
             {
             /* Cycle through all known transparent accelerators */
 #if defined(PSA_CRYPTO_DRIVER_TEST)
@@ -793,7 +811,8 @@
 
             /* Software fallback */
             status = psa_generate_key_internal(
-                attributes, key_buffer, key_buffer_size, key_buffer_length );
+                attributes, params, params_data_length,
+                key_buffer, key_buffer_size, key_buffer_length );
             break;
 
         /* Add cases for opaque driver here */
diff --git a/tests/include/test/ssl_helpers.h b/tests/include/test/ssl_helpers.h
index 9a078f6..5b071f7 100644
--- a/tests/include/test/ssl_helpers.h
+++ b/tests/include/test/ssl_helpers.h
@@ -608,9 +608,7 @@
     mbedtls_test_handshake_test_options *client_options,
     mbedtls_test_handshake_test_options *server_options,
     mbedtls_ssl_session *session);
-#endif /* MBEDTLS_SSL_CLI_C && MBEDTLS_SSL_SRV_C &&
-          MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_SESSION_TICKETS &&
-          MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */
+#endif
 
 #define ECJPAKE_TEST_PWD        "bla"
 
diff --git a/tests/opt-testcases/tls13-misc.sh b/tests/opt-testcases/tls13-misc.sh
index 4e6bf87..ad062dc 100755
--- a/tests/opt-testcases/tls13-misc.sh
+++ b/tests/opt-testcases/tls13-misc.sh
@@ -263,7 +263,7 @@
 run_test    "TLS 1.3 m->G: EarlyData: basic check, good" \
             "$G_NEXT_SRV -d 10 --priority=NORMAL:-VERS-ALL:+VERS-TLS1.3:+CIPHER-ALL:+ECDHE-PSK:+PSK \
                          --earlydata --maxearlydata 16384 --disable-client-cert" \
-            "$P_CLI debug_level=4 early_data=$EARLY_DATA_INPUT reco_mode=1 reconnect=1 reco_delay=900" \
+            "$P_CLI debug_level=4 early_data=1 reco_mode=1 reconnect=1 reco_delay=900" \
             0 \
             -c "received max_early_data_size: 16384" \
             -c "Reconnecting with saved session" \
@@ -285,9 +285,34 @@
                              MBEDTLS_SSL_EARLY_DATA
 requires_any_configs_enabled MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED \
                              MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED
+run_test    "TLS 1.3 m->G: EarlyData: write early data, good" \
+            "$G_NEXT_SRV -d 10 --priority=NORMAL:-VERS-ALL:+VERS-TLS1.3:+CIPHER-ALL:+ECDHE-PSK:+PSK --earlydata --disable-client-cert" \
+            "$P_CLI debug_level=4 early_data=1 reco_mode=1 reconnect=1 reco_delay=900" \
+            0 \
+            -c "Reconnecting with saved session" \
+            -c "NewSessionTicket: early_data(42) extension received." \
+            -c "ClientHello: early_data(42) extension exists." \
+            -c "EncryptedExtensions: early_data(42) extension received." \
+            -c "EncryptedExtensions: early_data(42) extension exists." \
+            -c "<= write early_data" \
+            -c "<= write EndOfEarlyData" \
+            -s "Parsing extension 'Early Data/42' (0 bytes)" \
+            -s "Sending extension Early Data/42 (0 bytes)" \
+            -s "END OF EARLY DATA (5) was received." \
+            -s "early data accepted" \
+            -s "decrypted early data with length"
+
+requires_gnutls_tls1_3
+requires_config_enabled MBEDTLS_DEBUG_C
+requires_config_enabled MBEDTLS_SSL_CLI_C
+requires_all_configs_enabled MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE \
+                             MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED \
+                             MBEDTLS_SSL_EARLY_DATA
+requires_any_configs_enabled MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED \
+                             MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED
 run_test    "TLS 1.3 m->G: EarlyData: no early_data in NewSessionTicket, good" \
             "$G_NEXT_SRV -d 10 --priority=NORMAL:-VERS-ALL:+VERS-TLS1.3:+CIPHER-ALL:+ECDHE-PSK:+PSK --disable-client-cert" \
-            "$P_CLI debug_level=4 early_data=$EARLY_DATA_INPUT reco_mode=1 reconnect=1" \
+            "$P_CLI debug_level=4 early_data=1 reco_mode=1 reconnect=1" \
             0 \
             -c "Reconnecting with saved session" \
             -C "NewSessionTicket: early_data(42) extension received." \
diff --git a/tests/scripts/analyze_outcomes.py b/tests/scripts/analyze_outcomes.py
index 2a29f71..5b4deb6 100755
--- a/tests/scripts/analyze_outcomes.py
+++ b/tests/scripts/analyze_outcomes.py
@@ -570,6 +570,11 @@
                     re.compile(r'mbedtls_ct_zeroize_if .*'),
                     re.compile(r'mbedtls_ct_memmove_left .*')
                 ],
+                'test_suite_psa_crypto': [
+                    # We don't support generate_key_ext entry points
+                    # in drivers yet.
+                    re.compile(r'PSA generate key ext: RSA, e=.*'),
+                ],
             }
         }
     },
diff --git a/tests/src/drivers/test_driver_key_management.c b/tests/src/drivers/test_driver_key_management.c
index a3d532d..866b31e 100644
--- a/tests/src/drivers/test_driver_key_management.c
+++ b/tests/src/drivers/test_driver_key_management.c
@@ -225,10 +225,13 @@
         defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
         return libtestdriver1_mbedtls_psa_rsa_generate_key(
             (const libtestdriver1_psa_key_attributes_t *) attributes,
+            NULL, 0, /* We don't support custom e in the test driver yet */
             key, key_size, key_length);
 #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
         return mbedtls_psa_rsa_generate_key(
-            attributes, key, key_size, key_length);
+            attributes,
+            NULL, 0, /* We don't support custom e in the test driver yet */
+            key, key_size, key_length);
 #endif
     } else if (PSA_KEY_TYPE_IS_DH(psa_get_key_type(attributes))
                && PSA_KEY_TYPE_IS_KEY_PAIR(psa_get_key_type(attributes))) {
diff --git a/tests/src/helpers.c b/tests/src/helpers.c
index b9233be..2433422 100644
--- a/tests/src/helpers.c
+++ b/tests/src/helpers.c
@@ -31,7 +31,16 @@
 #endif /* MBEDTLS_THREADING_C */
 
 /*----------------------------------------------------------------------------*/
-/* Mbedtls Test Info accessors */
+/* Mbedtls Test Info accessors
+ *
+ * NOTE - there are two types of accessors here: public accessors and internal
+ * accessors. The public accessors have prototypes in helpers.h and lock
+ * mbedtls_test_info_mutex (if mutexes are enabled). The _internal accessors,
+ * which are expected to be used from this module *only*, do not lock the mutex.
+ * These are designed to be called from within public functions which already
+ * hold the mutex. The main reason for this difference is the need to set
+ * multiple test data values atomically (without releasing the mutex) to prevent
+ * race conditions. */
 
 mbedtls_test_result_t mbedtls_test_get_result(void)
 {
@@ -50,8 +59,8 @@
     return result;
 }
 
-void mbedtls_test_set_result(mbedtls_test_result_t result, const char *test,
-                             int line_no, const char *filename)
+static void mbedtls_test_set_result_internal(mbedtls_test_result_t result, const char *test,
+                                             int line_no, const char *filename)
 {
     /* Internal function only - mbedtls_test_info_mutex should be held prior
      * to calling this function. */
@@ -144,7 +153,7 @@
     return step;
 }
 
-void mbedtls_test_reset_step(void)
+static void mbedtls_test_reset_step_internal(void)
 {
     /* Internal function only - mbedtls_test_info_mutex should be held prior
      * to calling this function. */
@@ -178,7 +187,7 @@
 #endif /* MBEDTLS_THREADING_C */
 }
 
-void mbedtls_test_set_line1(const char *line)
+static void mbedtls_test_set_line1_internal(const char *line)
 {
     /* Internal function only - mbedtls_test_info_mutex should be held prior
      * to calling this function. */
@@ -203,7 +212,7 @@
 #endif /* MBEDTLS_THREADING_C */
 }
 
-void mbedtls_test_set_line2(const char *line)
+static void mbedtls_test_set_line2_internal(const char *line)
 {
     /* Internal function only - mbedtls_test_info_mutex should be held prior
      * to calling this function. */
@@ -219,7 +228,19 @@
 #if defined(MBEDTLS_TEST_MUTEX_USAGE)
 const char *mbedtls_test_get_mutex_usage_error(void)
 {
-    return mbedtls_test_info.mutex_usage_error;
+    const char *usage_error;
+
+#ifdef MBEDTLS_THREADING_C
+    mbedtls_mutex_lock(&mbedtls_test_info_mutex);
+#endif /* MBEDTLS_THREADING_C */
+
+    usage_error = mbedtls_test_info.mutex_usage_error;
+
+#ifdef MBEDTLS_THREADING_C
+    mbedtls_mutex_unlock(&mbedtls_test_info_mutex);
+#endif /* MBEDTLS_THREADING_C */
+
+    return usage_error;
 }
 
 void mbedtls_test_set_mutex_usage_error(const char *msg)
@@ -255,7 +276,7 @@
     return test_case_uses_negative_0;
 }
 
-void mbedtls_test_set_case_uses_negative_0(unsigned uses)
+static void mbedtls_test_set_case_uses_negative_0_internal(unsigned uses)
 {
     /* Internal function only - mbedtls_test_info_mutex should be held prior
      * to calling this function. */
@@ -350,7 +371,7 @@
     if (mbedtls_test_info.result != MBEDTLS_TEST_RESULT_FAILED) {
         /* If we have already recorded the test as having failed then don't
          * overwrite any previous information about the failure. */
-        mbedtls_test_set_result(MBEDTLS_TEST_RESULT_FAILED, test, line_no, filename);
+        mbedtls_test_set_result_internal(MBEDTLS_TEST_RESULT_FAILED, test, line_no, filename);
     }
 }
 
@@ -373,7 +394,7 @@
     mbedtls_mutex_lock(&mbedtls_test_info_mutex);
 #endif /* MBEDTLS_THREADING_C */
 
-    mbedtls_test_set_result(MBEDTLS_TEST_RESULT_SKIPPED, test, line_no, filename);
+    mbedtls_test_set_result_internal(MBEDTLS_TEST_RESULT_SKIPPED, test, line_no, filename);
 
 #ifdef MBEDTLS_THREADING_C
     mbedtls_mutex_unlock(&mbedtls_test_info_mutex);
@@ -386,13 +407,13 @@
     mbedtls_mutex_lock(&mbedtls_test_info_mutex);
 #endif /* MBEDTLS_THREADING_C */
 
-    mbedtls_test_set_result(MBEDTLS_TEST_RESULT_SUCCESS, 0, 0, 0);
-    mbedtls_test_reset_step();
-    mbedtls_test_set_line1(NULL);
-    mbedtls_test_set_line2(NULL);
+    mbedtls_test_set_result_internal(MBEDTLS_TEST_RESULT_SUCCESS, 0, 0, 0);
+    mbedtls_test_reset_step_internal();
+    mbedtls_test_set_line1_internal(NULL);
+    mbedtls_test_set_line2_internal(NULL);
 
 #if defined(MBEDTLS_BIGNUM_C)
-    mbedtls_test_set_case_uses_negative_0(0);
+    mbedtls_test_set_case_uses_negative_0_internal(0);
 #endif
 
 #ifdef MBEDTLS_THREADING_C
@@ -424,11 +445,11 @@
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "lhs = 0x%016llx = %lld",
                                 value1, (long long) value1);
-        mbedtls_test_set_line1(buf);
+        mbedtls_test_set_line1_internal(buf);
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "rhs = 0x%016llx = %lld",
                                 value2, (long long) value2);
-        mbedtls_test_set_line2(buf);
+        mbedtls_test_set_line2_internal(buf);
     }
 
 #ifdef MBEDTLS_THREADING_C
@@ -462,11 +483,11 @@
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "lhs = 0x%016llx = %llu",
                                 value1, value1);
-        mbedtls_test_set_line1(buf);
+        mbedtls_test_set_line1_internal(buf);
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "rhs = 0x%016llx = %llu",
                                 value2, value2);
-        mbedtls_test_set_line2(buf);
+        mbedtls_test_set_line2_internal(buf);
     }
 
 #ifdef MBEDTLS_THREADING_C
@@ -500,11 +521,11 @@
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "lhs = 0x%016llx = %lld",
                                 (unsigned long long) value1, value1);
-        mbedtls_test_set_line1(buf);
+        mbedtls_test_set_line1_internal(buf);
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "rhs = 0x%016llx = %lld",
                                 (unsigned long long) value2, value2);
-        mbedtls_test_set_line2(buf);
+        mbedtls_test_set_line2_internal(buf);
     }
 
 #ifdef MBEDTLS_THREADING_C
diff --git a/tests/src/threading_helpers.c b/tests/src/threading_helpers.c
index ff0c712..c1686c2 100644
--- a/tests/src/threading_helpers.c
+++ b/tests/src/threading_helpers.c
@@ -317,22 +317,26 @@
 
 void mbedtls_test_mutex_usage_check(void)
 {
-    if (live_mutexes != 0) {
-        /* A positive number (more init than free) means that a mutex resource
-         * is leaking (on platforms where a mutex consumes more than the
-         * mbedtls_threading_mutex_t object itself). The rare case of a
-         * negative number means a missing init somewhere. */
-        mbedtls_fprintf(stdout, "[mutex: %d leaked] ", live_mutexes);
-        live_mutexes = 0;
-        mbedtls_test_set_mutex_usage_error("missing free");
+    if (mutex_functions.lock(&mbedtls_test_mutex_mutex) == 0) {
+        if (live_mutexes != 0) {
+            /* A positive number (more init than free) means that a mutex resource
+             * is leaking (on platforms where a mutex consumes more than the
+             * mbedtls_threading_mutex_t object itself). The (hopefully) rare
+             * case of a negative number means a missing init somewhere. */
+            mbedtls_fprintf(stdout, "[mutex: %d leaked] ", live_mutexes);
+            live_mutexes = 0;
+            mbedtls_test_set_mutex_usage_error("missing free");
+        }
+        if (mbedtls_test_get_mutex_usage_error() != NULL &&
+            mbedtls_test_get_result() != MBEDTLS_TEST_RESULT_FAILED) {
+            /* Functionally, the test passed. But there was a mutex usage error,
+             * so mark the test as failed after all. */
+            mbedtls_test_fail("Mutex usage error", __LINE__, __FILE__);
+        }
+        mbedtls_test_set_mutex_usage_error(NULL);
+
+        mutex_functions.unlock(&mbedtls_test_mutex_mutex);
     }
-    if (mbedtls_test_get_mutex_usage_error() != NULL &&
-        mbedtls_test_get_result() != MBEDTLS_TEST_RESULT_FAILED) {
-        /* Functionally, the test passed. But there was a mutex usage error,
-         * so mark the test as failed after all. */
-        mbedtls_test_fail("Mutex usage error", __LINE__, __FILE__);
-    }
-    mbedtls_test_set_mutex_usage_error(NULL);
 }
 
 void mbedtls_test_mutex_usage_end(void)
diff --git a/tests/suites/test_suite_ecp.data b/tests/suites/test_suite_ecp.data
index 01fdc47..1dd963a 100644
--- a/tests/suites/test_suite_ecp.data
+++ b/tests/suites/test_suite_ecp.data
@@ -736,6 +736,158 @@
 depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
 mbedtls_ecp_read_key:MBEDTLS_ECP_DP_CURVE25519:"70076d0a7318a57d3c16c17251b26645df4c2f87ebc0992ab177fba51db92c6a":0:1
 
+ECP write key: secp256r1, nominal
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":32:0
+
+ECP write key: secp256r1, output longer by 1
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":33:0
+
+ECP write key: secp256r1, output longer by 32
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":64:0
+
+ECP write key: secp256r1, output longer by 33
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":65:0
+
+ECP write key: secp256r1, output short by 1
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":31:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp256r1, output_size=1
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":1:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp256r1, output_size=0
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":0:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp256r1, top byte = 0, output_size=32
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff":32:0
+
+ECP write key: secp256r1, top byte = 0, output_size=31 (fits)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff":31:0
+
+ECP write key: secp256r1, top byte = 0, output_size=30 (too small)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff":30:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp256r1, mostly-0 key, output_size=32
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"0000000000000000000000000000000000000000000000000000000000000001":32:0
+
+ECP write key: secp256r1, mostly-0 key, output_size=31 (fits)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"0000000000000000000000000000000000000000000000000000000000000001":31:0
+
+ECP write key: secp256r1, mostly-0 key, output_size=1 (fits)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"0000000000000000000000000000000000000000000000000000000000000001":1:0
+
+ECP write key: secp384r1, nominal
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":48:0
+
+ECP write key: secp384r1, output longer by 1
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":49:0
+
+ECP write key: secp384r1, output longer by 48
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":96:0
+
+ECP write key: secp384r1, output longer by 49
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":97:0
+
+ECP write key: secp384r1, output short by 1
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":47:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp384r1, output_size=1
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":1:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp384r1, output_size=0
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":0:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: Curve25519, nominal
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":32:0
+
+ECP write key: Curve25519, output longer by 1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":33:0
+
+ECP write key: Curve25519, output longer by 32
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":64:0
+
+ECP write key: Curve25519, output longer by 33
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":65:0
+
+ECP write key: Curve25519, output short by 1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":31:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve25519, output_size=1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":1:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve25519, output_size=0
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":0:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve25519, mostly-0 key, output_size=32
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"0000000000000000000000000000000000000000000000000000000000000040":32:0
+
+ECP write key: Curve25519, mostly-0 key, output_size=31
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"0000000000000000000000000000000000000000000000000000000000000040":31:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve448, nominal
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":56:0
+
+ECP write key: Curve448, output longer by 1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":57:0
+
+ECP write key: Curve448, output longer by 32
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":112:0
+
+ECP write key: Curve448, output longer by 33
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":113:0
+
+ECP write key: Curve448, output short by 1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":55:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve448, output_size=1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":1:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve448, output_size=0
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":0:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve448, mostly-0 key, output_size=56
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080":56:0
+
+ECP write key: Curve448, mostly-0 key, output_size=55
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080":55:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
 ECP mod p192 small (more than 192 bits, less limbs than 2 * 192 bits)
 depends_on:MBEDTLS_ECP_DP_SECP192R1_ENABLED:MBEDTLS_ECP_NIST_OPTIM
 ecp_fast_mod:MBEDTLS_ECP_DP_SECP192R1:"0100000000000103010000000000010201000000000001010100000000000100"
diff --git a/tests/suites/test_suite_ecp.function b/tests/suites/test_suite_ecp.function
index 295fe7f..9cf0ce1 100644
--- a/tests/suites/test_suite_ecp.function
+++ b/tests/suites/test_suite_ecp.function
@@ -1236,6 +1236,66 @@
 }
 /* END_CASE */
 
+/* BEGIN_CASE */
+void ecp_write_key(int grp_id, data_t *in_key,
+                   int exported_size, int expected_ret)
+{
+    mbedtls_ecp_keypair key;
+    mbedtls_ecp_keypair_init(&key);
+    unsigned char *exported = NULL;
+
+    TEST_EQUAL(mbedtls_ecp_read_key(grp_id, &key, in_key->x, in_key->len), 0);
+
+    TEST_CALLOC(exported, exported_size);
+    TEST_EQUAL(mbedtls_ecp_write_key(&key, exported, exported_size),
+               expected_ret);
+
+    if (expected_ret == 0) {
+        size_t length = (key.grp.nbits + 7) / 8;
+        const unsigned char *key_start = NULL;
+        const unsigned char *zeros_start = NULL;
+        switch (mbedtls_ecp_get_type(&key.grp)) {
+            case MBEDTLS_ECP_TYPE_SHORT_WEIERSTRASS:
+                if ((size_t) exported_size < length) {
+                    length = exported_size;
+                }
+                key_start = exported + exported_size - length;
+                zeros_start = exported;
+                break;
+            case MBEDTLS_ECP_TYPE_MONTGOMERY:
+                TEST_LE_U(length, exported_size);
+                key_start = exported;
+                zeros_start = exported + length;
+                break;
+            default:
+                TEST_FAIL("Unknown ECP curve type");
+                break;
+        }
+
+        if (length < in_key->len) {
+            /* Shorter output (only possible with Weierstrass keys) */
+            for (size_t i = 0; i < in_key->len - length; i++) {
+                mbedtls_test_set_step(i);
+                TEST_EQUAL(in_key->x[i], 0);
+            }
+            TEST_MEMORY_COMPARE(in_key->x + in_key->len - length, length,
+                                key_start, length);
+        } else {
+            TEST_MEMORY_COMPARE(in_key->x, in_key->len,
+                                key_start, length);
+            for (size_t i = 0; i < exported_size - length; i++) {
+                mbedtls_test_set_step(i);
+                TEST_EQUAL(zeros_start[i], 0);
+            }
+        }
+    }
+
+exit:
+    mbedtls_ecp_keypair_free(&key);
+    mbedtls_free(exported);
+}
+/* END_CASE */
+
 /* BEGIN_CASE depends_on:MBEDTLS_TEST_HOOKS:MBEDTLS_ECP_MONTGOMERY_ENABLED:MBEDTLS_ECP_LIGHT */
 void genkey_mx_known_answer(int bits, data_t *seed, data_t *expected)
 {
diff --git a/tests/suites/test_suite_psa_crypto.data b/tests/suites/test_suite_psa_crypto.data
index 38e4046..c55af03 100644
--- a/tests/suites/test_suite_psa_crypto.data
+++ b/tests/suites/test_suite_psa_crypto.data
@@ -6870,6 +6870,18 @@
 depends_on:PSA_WANT_ALG_PBKDF2_AES_CMAC_PRF_128:PSA_WANT_ALG_CMAC:PSA_WANT_KEY_TYPE_AES:!MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH
 derive_key_type:PSA_ALG_PBKDF2_AES_CMAC_PRF_128:"706173737764":"01":"73616c74":PSA_KEY_TYPE_AES:256:"28e288c6345bb5ecf7ca70274208a3ba0f1148b5868537d5e09d3ee6813b1f52"
 
+PSA key derivation: default params -> AES-128
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_AES
+derive_key_ext:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_AES:128:0:"":PSA_SUCCESS:"3cb25f25faacd57a90434f64d0362f2a"
+
+PSA key derivation: params.flags=1 -> AES-128
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_AES
+derive_key_ext:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_AES:128:1:"":PSA_ERROR_INVALID_ARGUMENT:""
+
+PSA key derivation: params.data non-empty -> AES-128
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_AES
+derive_key_ext:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_AES:128:0:"2a":PSA_ERROR_INVALID_ARGUMENT:""
+
 PSA key derivation: invalid type (0)
 depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
 derive_key:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_NONE:128:PSA_ERROR_NOT_SUPPORTED:0
@@ -7419,24 +7431,6 @@
 depends_on:PSA_WANT_ALG_ECDH:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE:PSA_WANT_ECC_MONTGOMERY_448
 generate_key:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_MONTGOMERY):448:PSA_KEY_USAGE_EXPORT | PSA_KEY_USAGE_DERIVE:PSA_ALG_ECDH:PSA_SUCCESS:0
 
-PSA generate key: RSA, default e
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"":PSA_SUCCESS
-
-PSA generate key: RSA, e=3
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"03":PSA_SUCCESS
-
-PSA generate key: RSA, e=65537
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"010001":PSA_SUCCESS
-
-PSA generate key: RSA, e=513
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"0201":PSA_SUCCESS
-
-PSA generate key: RSA, e=1
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"01":PSA_ERROR_INVALID_ARGUMENT
-
-PSA generate key: RSA, e=2
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"02":PSA_ERROR_INVALID_ARGUMENT
-
 PSA generate key: FFDH, 2048 bits, good
 depends_on:PSA_WANT_ALG_FFDH:PSA_WANT_KEY_TYPE_DH_KEY_PAIR_GENERATE:PSA_WANT_DH_RFC7919_2048
 generate_key:PSA_KEY_TYPE_DH_KEY_PAIR(PSA_DH_FAMILY_RFC7919):2048:PSA_KEY_USAGE_EXPORT:PSA_ALG_FFDH:PSA_SUCCESS:0
@@ -7461,6 +7455,86 @@
 depends_on:PSA_WANT_ALG_FFDH:PSA_WANT_KEY_TYPE_DH_KEY_PAIR_GENERATE
 generate_key:PSA_KEY_TYPE_DH_KEY_PAIR(PSA_DH_FAMILY_RFC7919):1024:PSA_KEY_USAGE_EXPORT:PSA_ALG_FFDH:PSA_ERROR_NOT_SUPPORTED:0
 
+PSA generate key ext: RSA, params.flags=1
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:1:"":PSA_ERROR_INVALID_ARGUMENT
+
+PSA generate key ext: RSA, empty e
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=3
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"03":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=3 with leading zeros
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"000003":PSA_SUCCESS
+
+# TODO: currently errors with NOT_SUPPORTED because e is converted to an int
+# and the conversion errors out if there are too many digits without checking
+# for leading zeros. This is a very minor bug. Re-enable this test when this
+# bug is fixed.
+#PSA generate key ext: RSA, e=3 with many leading zeros
+#depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+#generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"0000000000000000000000000000000003":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=513
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"0201":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=65537
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"010001":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=2^31-1
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT:INT_MAX>=0x7fffffff
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"7fffffff":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=2^31+3 (too large for built-in RSA)
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:!MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_GENERATE:INT_MAX<=0x7fffffff
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"80000003":PSA_ERROR_NOT_SUPPORTED
+
+PSA generate key ext: RSA, e=2^64+3 (too large for built-in RSA)
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:!MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_GENERATE:INT_MAX<=0xffffffffffffffff
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"010000000000000003":PSA_ERROR_NOT_SUPPORTED
+
+PSA generate key ext: RSA, e=1
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"01":PSA_ERROR_INVALID_ARGUMENT
+
+PSA generate key ext: RSA, e=0
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"00":PSA_ERROR_INVALID_ARGUMENT
+
+PSA generate key ext: RSA, e=2
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"02":PSA_ERROR_INVALID_ARGUMENT
+
+# Check that with a driver, we reject a custom e as unsupported,
+# as opposed to silently using the default e.
+# When we add proper driver support, remove this test case and remove
+# the dependency on MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE from
+# the positive/invalid_argument test cases.
+PSA generate key ext: RSA, e=3 with driver and no fallback (not yet supported)
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:!MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"03":PSA_ERROR_NOT_SUPPORTED
+
+PSA generate key ext: ECC, flags=0
+depends_on:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE:PSA_WANT_ECC_SECP_R1_256:PSA_WANT_ALG_ECDH
+generate_key_ext:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):256:PSA_KEY_USAGE_DERIVE:PSA_ALG_ECDH:0:"":PSA_SUCCESS
+
+PSA generate key ext: ECC, flags=1
+depends_on:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE:PSA_WANT_ECC_SECP_R1_256:PSA_WANT_ALG_ECDH
+generate_key_ext:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):256:PSA_KEY_USAGE_DERIVE:PSA_ALG_ECDH:1:"":PSA_ERROR_INVALID_ARGUMENT
+
+PSA generate key ext: ECC, params.data non-empty
+depends_on:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE:PSA_WANT_ECC_SECP_R1_256:PSA_WANT_ALG_ECDH
+generate_key_ext:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):256:PSA_KEY_USAGE_DERIVE:PSA_ALG_ECDH:0:"2a":PSA_ERROR_INVALID_ARGUMENT
+
+Key production parameters initializers
+key_production_parameters_init:
+
 PSA import persistent key: raw data, 8 bits
 depends_on:MBEDTLS_PSA_CRYPTO_STORAGE_C
 persistent_key_load_key_from_storage:"2a":PSA_KEY_TYPE_RAW_DATA:8:PSA_KEY_USAGE_EXPORT:0:IMPORT_KEY
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 95e7a2d..09874a1 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -1255,6 +1255,84 @@
 }
 #endif /* MBEDTLS_ECP_RESTARTABLE */
 
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
+static int rsa_test_e(mbedtls_svc_key_id_t key,
+                      size_t bits,
+                      const data_t *e_arg)
+{
+    uint8_t *exported = NULL;
+    size_t exported_size =
+        PSA_EXPORT_KEY_OUTPUT_SIZE(PSA_KEY_TYPE_RSA_PUBLIC_KEY, bits);
+    size_t exported_length = SIZE_MAX;
+    int ok = 0;
+
+    TEST_CALLOC(exported, exported_size);
+    PSA_ASSERT(psa_export_public_key(key,
+                                     exported, exported_size,
+                                     &exported_length));
+    uint8_t *p = exported;
+    uint8_t *end = exported + exported_length;
+    size_t len;
+    /*   RSAPublicKey ::= SEQUENCE {
+     *      modulus            INTEGER,    -- n
+     *      publicExponent     INTEGER  }  -- e
+     */
+    TEST_EQUAL(0, mbedtls_asn1_get_tag(&p, end, &len,
+                                       MBEDTLS_ASN1_SEQUENCE |
+                                       MBEDTLS_ASN1_CONSTRUCTED));
+    TEST_ASSERT(mbedtls_test_asn1_skip_integer(&p, end, bits, bits, 1));
+    TEST_EQUAL(0, mbedtls_asn1_get_tag(&p, end, &len,
+                                       MBEDTLS_ASN1_INTEGER));
+    if (len >= 1 && p[0] == 0) {
+        ++p;
+        --len;
+    }
+    if (e_arg->len == 0) {
+        TEST_EQUAL(len, 3);
+        TEST_EQUAL(p[0], 1);
+        TEST_EQUAL(p[1], 0);
+        TEST_EQUAL(p[2], 1);
+    } else {
+        const uint8_t *expected = e_arg->x;
+        size_t expected_len = e_arg->len;
+        while (expected_len > 0 && *expected == 0) {
+            ++expected;
+            --expected_len;
+        }
+        TEST_MEMORY_COMPARE(p, len, expected, expected_len);
+    }
+    ok = 1;
+
+exit:
+    mbedtls_free(exported);
+    return ok;
+}
+#endif /* PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE */
+
+static int setup_key_production_parameters(
+    psa_key_production_parameters_t **params, size_t *params_data_length,
+    int flags_arg, const data_t *params_data)
+{
+    *params_data_length = params_data->len;
+    /* If there are N bytes of padding at the end of
+     * psa_key_production_parameters_t, then it's enough to allocate
+     * MIN(sizeof(psa_key_production_parameters_t),
+     *     offsetof(psa_key_production_parameters_t, data) + params_data_length).
+     *
+     * For simplicity, here, we allocate up to N more bytes than necessary.
+     * In practice, the current layout of psa_key_production_parameters_t
+     * makes padding extremely unlikely, so we don't worry about testing
+     * that the library code doesn't try to access these extra N bytes.
+     */
+    *params = mbedtls_calloc(1, sizeof(**params) + *params_data_length);
+    TEST_ASSERT(*params != NULL);
+    (*params)->flags = (uint32_t) flags_arg;
+    memcpy((*params)->data, params_data->x, params_data->len);
+    return 1;
+exit:
+    return 0;
+}
+
 /* END_HEADER */
 
 /* BEGIN_DEPENDENCIES
@@ -9255,6 +9333,81 @@
 /* END_CASE */
 
 /* BEGIN_CASE */
+void derive_key_ext(int alg_arg,
+                    data_t *key_data,
+                    data_t *input1,
+                    data_t *input2,
+                    int key_type_arg, int bits_arg,
+                    int flags_arg,
+                    data_t *params_data,
+                    psa_status_t expected_status,
+                    data_t *expected_export)
+{
+    mbedtls_svc_key_id_t base_key = MBEDTLS_SVC_KEY_ID_INIT;
+    mbedtls_svc_key_id_t derived_key = MBEDTLS_SVC_KEY_ID_INIT;
+    const psa_algorithm_t alg = alg_arg;
+    const psa_key_type_t key_type = key_type_arg;
+    const size_t bits = bits_arg;
+    psa_key_production_parameters_t *params = NULL;
+    size_t params_data_length = 0;
+    psa_key_derivation_operation_t operation = PSA_KEY_DERIVATION_OPERATION_INIT;
+    const size_t export_buffer_size =
+        PSA_EXPORT_KEY_OUTPUT_SIZE(key_type, bits);
+    uint8_t *export_buffer = NULL;
+    psa_key_attributes_t base_attributes = PSA_KEY_ATTRIBUTES_INIT;
+    psa_key_attributes_t derived_attributes = PSA_KEY_ATTRIBUTES_INIT;
+    size_t export_length;
+
+    TEST_CALLOC(export_buffer, export_buffer_size);
+    PSA_ASSERT(psa_crypto_init());
+
+    psa_set_key_usage_flags(&base_attributes, PSA_KEY_USAGE_DERIVE);
+    psa_set_key_algorithm(&base_attributes, alg);
+    psa_set_key_type(&base_attributes, PSA_KEY_TYPE_DERIVE);
+    PSA_ASSERT(psa_import_key(&base_attributes, key_data->x, key_data->len,
+                              &base_key));
+
+    if (mbedtls_test_psa_setup_key_derivation_wrap(
+            &operation, base_key, alg,
+            input1->x, input1->len,
+            input2->x, input2->len,
+            PSA_KEY_DERIVATION_UNLIMITED_CAPACITY) == 0) {
+        goto exit;
+    }
+
+    psa_set_key_usage_flags(&derived_attributes, PSA_KEY_USAGE_EXPORT);
+    psa_set_key_algorithm(&derived_attributes, 0);
+    psa_set_key_type(&derived_attributes, key_type);
+    psa_set_key_bits(&derived_attributes, bits);
+    if (!setup_key_production_parameters(&params, &params_data_length,
+                                         flags_arg, params_data)) {
+        goto exit;
+    }
+
+    TEST_EQUAL(psa_key_derivation_output_key_ext(&derived_attributes, &operation,
+                                                 params, params_data_length,
+                                                 &derived_key),
+               expected_status);
+
+    if (expected_status == PSA_SUCCESS) {
+        PSA_ASSERT(psa_export_key(derived_key,
+                                  export_buffer, export_buffer_size,
+                                  &export_length));
+        TEST_MEMORY_COMPARE(export_buffer, export_length,
+                            expected_export->x, expected_export->len);
+    }
+
+exit:
+    mbedtls_free(export_buffer);
+    mbedtls_free(params);
+    psa_key_derivation_abort(&operation);
+    psa_destroy_key(base_key);
+    psa_destroy_key(derived_key);
+    PSA_DONE();
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
 void derive_key(int alg_arg,
                 data_t *key_data, data_t *input1, data_t *input2,
                 int type_arg, int bits_arg,
@@ -9687,71 +9840,57 @@
 }
 /* END_CASE */
 
-/* BEGIN_CASE depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT:PSA_WANT_ALG_RSA_PKCS1V15_SIGN */
-void generate_key_rsa(int bits_arg,
-                      data_t *e_arg,
+/* BEGIN_CASE */
+void generate_key_ext(int type_arg,
+                      int bits_arg,
+                      int usage_arg,
+                      int alg_arg,
+                      int flags_arg,
+                      data_t *params_data,
                       int expected_status_arg)
 {
     mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
-    psa_key_type_t type = PSA_KEY_TYPE_RSA_KEY_PAIR;
+    psa_key_type_t type = type_arg;
+    psa_key_usage_t usage = usage_arg;
     size_t bits = bits_arg;
-    psa_key_usage_t usage = PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT;
-    psa_algorithm_t alg = PSA_ALG_RSA_PKCS1V15_SIGN_RAW;
+    psa_algorithm_t alg = alg_arg;
     psa_status_t expected_status = expected_status_arg;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
-    uint8_t *exported = NULL;
-    size_t exported_size =
-        PSA_EXPORT_KEY_OUTPUT_SIZE(PSA_KEY_TYPE_RSA_PUBLIC_KEY, bits);
-    size_t exported_length = SIZE_MAX;
-    uint8_t *e_read_buffer = NULL;
-    int is_default_public_exponent = 0;
-    size_t e_read_size = PSA_KEY_DOMAIN_PARAMETERS_SIZE(type, bits);
-    size_t e_read_length = SIZE_MAX;
-
-    if (e_arg->len == 0 ||
-        (e_arg->len == 3 &&
-         e_arg->x[0] == 1 && e_arg->x[1] == 0 && e_arg->x[2] == 1)) {
-        is_default_public_exponent = 1;
-        e_read_size = 0;
-    }
-    TEST_CALLOC(e_read_buffer, e_read_size);
-    TEST_CALLOC(exported, exported_size);
+    psa_key_production_parameters_t *params = NULL;
+    size_t params_data_length = 0;
+    psa_key_attributes_t got_attributes = PSA_KEY_ATTRIBUTES_INIT;
 
     PSA_ASSERT(psa_crypto_init());
 
     psa_set_key_usage_flags(&attributes, usage);
     psa_set_key_algorithm(&attributes, alg);
-    PSA_ASSERT(psa_set_key_domain_parameters(&attributes, type,
-                                             e_arg->x, e_arg->len));
+    psa_set_key_type(&attributes, type);
     psa_set_key_bits(&attributes, bits);
 
+    if (!setup_key_production_parameters(&params, &params_data_length,
+                                         flags_arg, params_data)) {
+        goto exit;
+    }
+
     /* Generate a key */
-    TEST_EQUAL(psa_generate_key(&attributes, &key), expected_status);
+    psa_status_t status = psa_generate_key_ext(&attributes,
+                                               params, params_data_length,
+                                               &key);
+
+    TEST_EQUAL(status, expected_status);
     if (expected_status != PSA_SUCCESS) {
         goto exit;
     }
 
     /* Test the key information */
-    PSA_ASSERT(psa_get_key_attributes(key, &attributes));
-    TEST_EQUAL(psa_get_key_type(&attributes), type);
-    TEST_EQUAL(psa_get_key_bits(&attributes), bits);
-    psa_status_t status = psa_get_key_domain_parameters(&attributes,
-                                                        e_read_buffer, e_read_size,
-                                                        &e_read_length);
+    PSA_ASSERT(psa_get_key_attributes(key, &got_attributes));
+    TEST_EQUAL(psa_get_key_type(&got_attributes), type);
+    TEST_EQUAL(psa_get_key_bits(&got_attributes), bits);
 
-
-#if (defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) && \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT)) || \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY)
-    if (is_default_public_exponent) {
-        TEST_EQUAL(e_read_length, 0);
-    } else {
-        TEST_EQUAL(status, PSA_SUCCESS);
-        TEST_MEMORY_COMPARE(e_read_buffer, e_read_length, e_arg->x, e_arg->len);
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
+    if (type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
+        TEST_ASSERT(rsa_test_e(key, bits, params_data));
     }
-#else
-    (void) is_default_public_exponent;
-    TEST_EQUAL(status, PSA_ERROR_NOT_SUPPORTED);
 #endif
 
     /* Do something with the key according to its type and permitted usage. */
@@ -9759,49 +9898,27 @@
         goto exit;
     }
 
-    /* Export the key and check the public exponent. */
-    PSA_ASSERT(psa_export_public_key(key,
-                                     exported, exported_size,
-                                     &exported_length));
-    {
-        uint8_t *p = exported;
-        uint8_t *end = exported + exported_length;
-        size_t len;
-        /*   RSAPublicKey ::= SEQUENCE {
-         *      modulus            INTEGER,    -- n
-         *      publicExponent     INTEGER  }  -- e
-         */
-        TEST_EQUAL(0, mbedtls_asn1_get_tag(&p, end, &len,
-                                           MBEDTLS_ASN1_SEQUENCE |
-                                           MBEDTLS_ASN1_CONSTRUCTED));
-        TEST_ASSERT(mbedtls_test_asn1_skip_integer(&p, end, bits, bits, 1));
-        TEST_EQUAL(0, mbedtls_asn1_get_tag(&p, end, &len,
-                                           MBEDTLS_ASN1_INTEGER));
-        if (len >= 1 && p[0] == 0) {
-            ++p;
-            --len;
-        }
-        if (e_arg->len == 0) {
-            TEST_EQUAL(len, 3);
-            TEST_EQUAL(p[0], 1);
-            TEST_EQUAL(p[1], 0);
-            TEST_EQUAL(p[2], 1);
-        } else {
-            TEST_MEMORY_COMPARE(p, len, e_arg->x, e_arg->len);
-        }
-    }
-
 exit:
     /*
-     * Key attributes may have been returned by psa_get_key_attributes() or
-     * set by psa_set_key_domain_parameters() thus reset them as required.
+     * Key attributes may have been returned by psa_get_key_attributes()
+     * thus reset them as required.
      */
-    psa_reset_key_attributes(&attributes);
-
+    psa_reset_key_attributes(&got_attributes);
+    mbedtls_free(params);
     psa_destroy_key(key);
     PSA_DONE();
-    mbedtls_free(e_read_buffer);
-    mbedtls_free(exported);
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
+void key_production_parameters_init()
+{
+    psa_key_production_parameters_t init = PSA_KEY_PRODUCTION_PARAMETERS_INIT;
+    psa_key_production_parameters_t zero;
+    memset(&zero, 0, sizeof(zero));
+
+    TEST_EQUAL(init.flags, 0);
+    TEST_EQUAL(zero.flags, 0);
 }
 /* END_CASE */
 
diff --git a/tests/suites/test_suite_ssl.data b/tests/suites/test_suite_ssl.data
index 69ccf26..385682a 100644
--- a/tests/suites/test_suite_ssl.data
+++ b/tests/suites/test_suite_ssl.data
@@ -3274,14 +3274,17 @@
 TLS 1.3 resume session with ticket
 tls13_resume_session_with_ticket
 
-TLS 1.3 early data, early data accepted
-tls13_early_data:TEST_EARLY_DATA_ACCEPTED
+TLS 1.3 read early data, early data accepted
+tls13_read_early_data:TEST_EARLY_DATA_ACCEPTED
 
-TLS 1.3 early data, server rejects early data
-tls13_early_data:TEST_EARLY_DATA_SERVER_REJECTS
+TLS 1.3 read early data, no early data indication
+tls13_read_early_data:TEST_EARLY_DATA_NO_INDICATION_SENT
 
-TLS 1.3 early data, discard after HRR
-tls13_early_data:TEST_EARLY_DATA_HRR
+TLS 1.3 read early data, server rejects early data
+tls13_read_early_data:TEST_EARLY_DATA_SERVER_REJECTS
+
+TLS 1.3 read early data, discard after HRR
+tls13_read_early_data:TEST_EARLY_DATA_HRR
 
 TLS 1.3 cli, early data status, early data accepted
 tls13_cli_early_data_status:TEST_EARLY_DATA_ACCEPTED
@@ -3294,3 +3297,15 @@
 
 TLS 1.3 cli, early data status, hello retry request
 tls13_cli_early_data_status:TEST_EARLY_DATA_HRR
+
+TLS 1.3 write early data, early data accepted
+tls13_write_early_data:TEST_EARLY_DATA_ACCEPTED
+
+TLS 1.3 write early data, no early data indication
+tls13_write_early_data:TEST_EARLY_DATA_NO_INDICATION_SENT
+
+TLS 1.3 write early data, server rejects early data
+tls13_write_early_data:TEST_EARLY_DATA_SERVER_REJECTS
+
+TLS 1.3 write early data, hello retry request
+tls13_write_early_data:TEST_EARLY_DATA_HRR
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index 0e798f4..d327828 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -18,49 +18,6 @@
 #define TEST_EARLY_DATA_SERVER_REJECTS 2
 #define TEST_EARLY_DATA_HRR 3
 
-#if (!defined(MBEDTLS_SSL_PROTO_TLS1_2)) && \
-    defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C) && \
-    defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_DEBUG_C) && \
-    defined(MBEDTLS_TEST_AT_LEAST_ONE_TLS1_3_CIPHERSUITE) && \
-    defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED) && \
-    defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED) && \
-    defined(MBEDTLS_MD_CAN_SHA256) && \
-    defined(MBEDTLS_ECP_HAVE_SECP256R1) && defined(MBEDTLS_ECP_HAVE_SECP384R1) && \
-    defined(MBEDTLS_PK_CAN_ECDSA_VERIFY) && defined(MBEDTLS_SSL_SESSION_TICKETS)
-/*
- * The implementation of the function should be based on
- * mbedtls_ssl_write_early_data() eventually. The current version aims at
- * removing the dependency on mbedtls_ssl_write_early_data() for the
- * development and testing of reading early data.
- */
-static int write_early_data(mbedtls_ssl_context *ssl,
-                            unsigned char *buf, size_t len)
-{
-    int ret = mbedtls_ssl_get_max_out_record_payload(ssl);
-
-    TEST_ASSERT(ret > 0);
-    TEST_ASSERT(len <= (size_t) ret);
-
-    ret = mbedtls_ssl_flush_output(ssl);
-    TEST_EQUAL(ret, 0);
-    TEST_EQUAL(ssl->out_left, 0);
-
-    ssl->out_msglen = len;
-    ssl->out_msgtype = MBEDTLS_SSL_MSG_APPLICATION_DATA;
-    if (len > 0) {
-        memcpy(ssl->out_msg, buf, len);
-    }
-
-    ret = mbedtls_ssl_write_record(ssl, 1);
-    TEST_EQUAL(ret, 0);
-
-    ret = len;
-
-exit:
-    return ret;
-}
-#endif
-
 /* END_HEADER */
 
 /* BEGIN_DEPENDENCIES
@@ -3624,12 +3581,12 @@
 /* END_CASE */
 
 /*
- * The !MBEDTLS_SSL_PROTO_TLS1_2 dependency of tls13_early_data() below is
+ * The !MBEDTLS_SSL_PROTO_TLS1_2 dependency of tls13_read_early_data() below is
  * a temporary workaround to not run the test in Windows-2013 where there is
  * an issue with mbedtls_vsnprintf().
  */
 /* BEGIN_CASE depends_on:!MBEDTLS_SSL_PROTO_TLS1_2:MBEDTLS_SSL_EARLY_DATA:MBEDTLS_SSL_CLI_C:MBEDTLS_SSL_SRV_C:MBEDTLS_DEBUG_C:MBEDTLS_TEST_AT_LEAST_ONE_TLS1_3_CIPHERSUITE:MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED:MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED:MBEDTLS_MD_CAN_SHA256:MBEDTLS_ECP_HAVE_SECP256R1:MBEDTLS_ECP_HAVE_SECP384R1:MBEDTLS_PK_CAN_ECDSA_VERIFY:MBEDTLS_SSL_SESSION_TICKETS */
-void tls13_early_data(int scenario)
+void tls13_read_early_data(int scenario)
 {
     int ret = -1;
     unsigned char buf[64];
@@ -3676,6 +3633,10 @@
         case TEST_EARLY_DATA_ACCEPTED:
             break;
 
+        case TEST_EARLY_DATA_NO_INDICATION_SENT:
+            client_options.early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
+            break;
+
         case TEST_EARLY_DATA_SERVER_REJECTS:
             mbedtls_debug_set_threshold(3);
             server_pattern.pattern =
@@ -3723,12 +3684,16 @@
                    &(client_ep.ssl), &(server_ep.ssl),
                    MBEDTLS_SSL_SERVER_HELLO), 0);
 
-    TEST_ASSERT(client_ep.ssl.early_data_status !=
-                MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT);
+    ret = mbedtls_ssl_write_early_data(&(client_ep.ssl),
+                                       (unsigned char *) early_data,
+                                       early_data_len);
 
-    ret = write_early_data(&(client_ep.ssl), (unsigned char *) early_data,
-                           early_data_len);
-    TEST_EQUAL(ret, early_data_len);
+    if (client_ep.ssl.early_data_status !=
+        MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT) {
+        TEST_EQUAL(ret, early_data_len);
+    } else {
+        TEST_EQUAL(ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+    }
 
     ret = mbedtls_test_move_handshake_to_state(
         &(server_ep.ssl), &(client_ep.ssl),
@@ -3743,12 +3708,20 @@
             TEST_MEMORY_COMPARE(buf, early_data_len, early_data, early_data_len);
             break;
 
+        case TEST_EARLY_DATA_NO_INDICATION_SENT:
+            TEST_EQUAL(ret, 0);
+            TEST_EQUAL(server_ep.ssl.handshake->early_data_accepted, 0);
+            break;
+
         case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
         case TEST_EARLY_DATA_HRR:
             TEST_EQUAL(ret, 0);
             TEST_EQUAL(server_ep.ssl.handshake->early_data_accepted, 0);
             TEST_EQUAL(server_pattern.counter, 1);
             break;
+
+        default:
+            TEST_FAIL("Unknown scenario.");
     }
 
     TEST_EQUAL(mbedtls_test_move_handshake_to_state(
@@ -3869,6 +3842,11 @@
                         (ret == MBEDTLS_ERR_SSL_WANT_WRITE));
         }
 
+        if (client_ep.ssl.state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+            TEST_EQUAL(mbedtls_ssl_get_early_data_status(&(client_ep.ssl)),
+                       MBEDTLS_ERR_SSL_BAD_INPUT_DATA);
+        }
+
         switch (client_ep.ssl.state) {
             case MBEDTLS_SSL_CLIENT_HELLO:
                 switch (scenario) {
@@ -3880,7 +3858,7 @@
                         break;
 
                     case TEST_EARLY_DATA_HRR:
-                        if (client_ep.ssl.handshake->hello_retry_request_count == 0) {
+                        if (!client_ep.ssl.handshake->hello_retry_request_flag) {
                             TEST_EQUAL(client_ep.ssl.early_data_status,
                                        MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN);
                         } else {
@@ -3888,6 +3866,9 @@
                                        MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         }
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -3905,7 +3886,7 @@
                         break;
 
                     case TEST_EARLY_DATA_HRR:
-                        if (client_ep.ssl.handshake->hello_retry_request_count == 0) {
+                        if (!client_ep.ssl.handshake->hello_retry_request_flag) {
                             TEST_EQUAL(client_ep.ssl.early_data_status,
                                        MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE);
                         } else {
@@ -3913,6 +3894,9 @@
                                        MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         }
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -3933,6 +3917,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -3953,6 +3940,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -3979,6 +3969,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -3999,12 +3992,14 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
             case MBEDTLS_SSL_CLIENT_CCS_AFTER_CLIENT_HELLO:
-                TEST_ASSERT(scenario != TEST_EARLY_DATA_NO_INDICATION_SENT);
                 switch (scenario) {
                     case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
                     case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
@@ -4012,6 +4007,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_SENT);
                         break;
+
+                    default:
+                        TEST_FAIL("Unexpected or unknown scenario.");
                 }
                 break;
 
@@ -4022,7 +4020,6 @@
                 break;
 
             case MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED:
-                TEST_ASSERT(scenario != TEST_EARLY_DATA_ACCEPTED);
                 switch (scenario) {
                     case TEST_EARLY_DATA_NO_INDICATION_SENT:
                         TEST_EQUAL(client_ep.ssl.early_data_status,
@@ -4034,6 +4031,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unexpected or unknown scenario.");
                 }
                 break;
 #endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */
@@ -4057,6 +4057,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -4065,8 +4068,30 @@
         }
     } while (client_ep.ssl.state != MBEDTLS_SSL_HANDSHAKE_OVER);
 
+    ret = mbedtls_ssl_get_early_data_status(&(client_ep.ssl));
+    switch (scenario) {
+        case TEST_EARLY_DATA_ACCEPTED:
+            TEST_EQUAL(ret, MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED);
+            break;
+
+        case TEST_EARLY_DATA_NO_INDICATION_SENT:
+            TEST_EQUAL(ret, MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT);
+            break;
+
+        case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
+        case TEST_EARLY_DATA_HRR:
+            TEST_EQUAL(ret, MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
+            break;
+
+        default:
+            TEST_FAIL("Unknown scenario.");
+    }
+
+    ret = mbedtls_ssl_get_early_data_status(&(server_ep.ssl));
+    TEST_EQUAL(ret, MBEDTLS_ERR_SSL_BAD_INPUT_DATA);
+
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
-    TEST_EQUAL(client_ep.ssl.handshake->ccs_count, 1);
+    TEST_EQUAL(client_ep.ssl.handshake->ccs_sent, 1);
 #endif
 
 exit:
@@ -4078,3 +4103,348 @@
     PSA_DONE();
 }
 /* END_CASE */
+
+/* BEGIN_CASE depends_on:MBEDTLS_SSL_EARLY_DATA:MBEDTLS_SSL_CLI_C:MBEDTLS_SSL_SRV_C:MBEDTLS_TEST_AT_LEAST_ONE_TLS1_3_CIPHERSUITE:MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED:MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED:MBEDTLS_MD_CAN_SHA256:MBEDTLS_ECP_HAVE_SECP256R1:MBEDTLS_ECP_HAVE_SECP384R1:MBEDTLS_PK_CAN_ECDSA_VERIFY:MBEDTLS_SSL_SESSION_TICKETS */
+void tls13_write_early_data(int scenario)
+{
+    int ret = -1;
+    mbedtls_test_ssl_endpoint client_ep, server_ep;
+    mbedtls_test_handshake_test_options client_options;
+    mbedtls_test_handshake_test_options server_options;
+    mbedtls_ssl_session saved_session;
+    uint16_t group_list[3] = {
+        MBEDTLS_SSL_IANA_TLS_GROUP_SECP256R1,
+        MBEDTLS_SSL_IANA_TLS_GROUP_SECP384R1,
+        MBEDTLS_SSL_IANA_TLS_GROUP_NONE
+    };
+    int beyond_first_hello = 0;
+
+    mbedtls_platform_zeroize(&client_ep, sizeof(client_ep));
+    mbedtls_platform_zeroize(&server_ep, sizeof(server_ep));
+    mbedtls_test_init_handshake_options(&client_options);
+    mbedtls_test_init_handshake_options(&server_options);
+    mbedtls_ssl_session_init(&saved_session);
+
+    PSA_INIT();
+
+    /*
+     * Run first handshake to get a ticket from the server.
+     */
+    client_options.pk_alg = MBEDTLS_PK_ECDSA;
+    client_options.early_data = MBEDTLS_SSL_EARLY_DATA_ENABLED;
+    server_options.pk_alg = MBEDTLS_PK_ECDSA;
+    server_options.early_data = MBEDTLS_SSL_EARLY_DATA_ENABLED;
+    if (scenario == TEST_EARLY_DATA_HRR) {
+        client_options.group_list = group_list;
+        server_options.group_list = group_list;
+    }
+
+    ret = mbedtls_test_get_tls13_ticket(&client_options, &server_options,
+                                        &saved_session);
+    TEST_EQUAL(ret, 0);
+
+    /*
+     * Prepare for handshake with the ticket.
+     */
+    switch (scenario) {
+        case TEST_EARLY_DATA_ACCEPTED:
+            break;
+
+        case TEST_EARLY_DATA_NO_INDICATION_SENT:
+            client_options.early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
+            break;
+
+        case TEST_EARLY_DATA_SERVER_REJECTS:
+            server_options.early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
+            break;
+
+        case TEST_EARLY_DATA_HRR:
+            server_options.group_list = group_list + 1;
+            break;
+
+        default:
+            TEST_FAIL("Unknown scenario.");
+    }
+
+    ret = mbedtls_test_ssl_endpoint_init(&client_ep, MBEDTLS_SSL_IS_CLIENT,
+                                         &client_options, NULL, NULL, NULL);
+    TEST_EQUAL(ret, 0);
+
+    ret = mbedtls_test_ssl_endpoint_init(&server_ep, MBEDTLS_SSL_IS_SERVER,
+                                         &server_options, NULL, NULL, NULL);
+    TEST_EQUAL(ret, 0);
+
+    mbedtls_ssl_conf_session_tickets_cb(&server_ep.conf,
+                                        mbedtls_test_ticket_write,
+                                        mbedtls_test_ticket_parse,
+                                        NULL);
+
+    ret = mbedtls_test_mock_socket_connect(&(client_ep.socket),
+                                           &(server_ep.socket), 1024);
+    TEST_EQUAL(ret, 0);
+
+    ret = mbedtls_ssl_set_session(&(client_ep.ssl), &saved_session);
+    TEST_EQUAL(ret, 0);
+
+    /*
+     * Run handshakes going one state further in the handshake sequence at each
+     * loop up to the point where we reach the MBEDTLS_SSL_HANDSHAKE_OVER
+     * state. For each reached handshake state, check the result of the call
+     * to mbedtls_ssl_write_early_data(), make sure we can complete the
+     * handshake successfully and then reset the connection to restart the
+     * handshake from scratch.
+     */
+    do {
+        int client_state = client_ep.ssl.state;
+        int previous_client_state;
+        const char *early_data_string = "This is early data.";
+        const unsigned char *early_data = (const unsigned char *) early_data_string;
+        size_t early_data_len = strlen(early_data_string);
+        int write_early_data_ret, read_early_data_ret;
+        unsigned char read_buf[64];
+
+        write_early_data_ret = mbedtls_ssl_write_early_data(&(client_ep.ssl),
+                                                            early_data,
+                                                            early_data_len);
+
+        if (scenario == TEST_EARLY_DATA_NO_INDICATION_SENT) {
+            TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+            TEST_EQUAL(client_ep.ssl.state, client_state);
+            goto complete_handshake;
+        }
+
+        switch (client_state) {
+            case MBEDTLS_SSL_HELLO_REQUEST: /* Intentional fallthrough */
+            case MBEDTLS_SSL_CLIENT_HELLO:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_SERVER_REJECTS:
+                        TEST_EQUAL(write_early_data_ret, early_data_len);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        break;
+
+                    case TEST_EARLY_DATA_HRR:
+                        if (!client_ep.ssl.handshake->hello_retry_request_flag) {
+                            TEST_EQUAL(write_early_data_ret, early_data_len);
+                            TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        } else {
+                            beyond_first_hello = 1;
+                            TEST_EQUAL(write_early_data_ret,
+                                       MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                            TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_CLIENT_HELLO);
+                        }
+                        break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            case MBEDTLS_SSL_SERVER_HELLO:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_SERVER_REJECTS:
+                        TEST_EQUAL(write_early_data_ret, early_data_len);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        break;
+
+                    case TEST_EARLY_DATA_HRR:
+                        if (!client_ep.ssl.handshake->hello_retry_request_flag) {
+                            TEST_EQUAL(write_early_data_ret, early_data_len);
+                            TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        } else {
+                            TEST_EQUAL(write_early_data_ret,
+                                       MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                            TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        }
+                        break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            case MBEDTLS_SSL_ENCRYPTED_EXTENSIONS:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_SERVER_REJECTS:
+                        TEST_EQUAL(write_early_data_ret, early_data_len);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_ENCRYPTED_EXTENSIONS);
+                        break;
+
+                    case TEST_EARLY_DATA_HRR:
+                        TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_ENCRYPTED_EXTENSIONS);
+                        break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            case MBEDTLS_SSL_SERVER_FINISHED:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED:
+                        TEST_EQUAL(write_early_data_ret, early_data_len);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_FINISHED);
+                        break;
+
+                    case TEST_EARLY_DATA_SERVER_REJECTS:
+                        TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_FINISHED);
+                        break;
+
+                    case TEST_EARLY_DATA_HRR:
+                        TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_FINISHED);
+                        break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            case MBEDTLS_SSL_END_OF_EARLY_DATA:
+                TEST_EQUAL(scenario, TEST_EARLY_DATA_ACCEPTED);
+                TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_END_OF_EARLY_DATA);
+                break;
+
+#if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
+            case MBEDTLS_SSL_CLIENT_CCS_AFTER_CLIENT_HELLO:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_HRR:
+                        TEST_EQUAL(write_early_data_ret, early_data_len);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        break;
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            case MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO:
+                TEST_EQUAL(scenario, TEST_EARLY_DATA_HRR);
+                TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO);
+                break;
+
+            case MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_HRR:
+                        TEST_EQUAL(write_early_data_ret,
+                                   MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                        TEST_EQUAL(client_ep.ssl.state,
+                                   MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED);
+                        break;
+                    default:
+                        TEST_FAIL("Unexpected or unknown scenario.");
+                }
+                break;
+#endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */
+
+            case MBEDTLS_SSL_CLIENT_CERTIFICATE: /* Intentional fallthrough */
+            case MBEDTLS_SSL_CLIENT_FINISHED: /* Intentional fallthrough */
+            case MBEDTLS_SSL_FLUSH_BUFFERS: /* Intentional fallthrough */
+            case MBEDTLS_SSL_HANDSHAKE_WRAPUP: /* Intentional fallthrough */
+            case MBEDTLS_SSL_HANDSHAKE_OVER:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_HRR:
+                        TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                        TEST_EQUAL(client_ep.ssl.state, client_state);
+                        break;
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            default:
+                TEST_FAIL("Unexpected state.");
+        }
+
+complete_handshake:
+        do {
+            ret = mbedtls_test_move_handshake_to_state(
+                &(server_ep.ssl), &(client_ep.ssl),
+                MBEDTLS_SSL_HANDSHAKE_OVER);
+
+            if (ret == MBEDTLS_ERR_SSL_RECEIVED_EARLY_DATA) {
+                read_early_data_ret = mbedtls_ssl_read_early_data(
+                    &(server_ep.ssl), read_buf, sizeof(read_buf));
+
+                TEST_EQUAL(read_early_data_ret, early_data_len);
+            }
+        } while (ret == MBEDTLS_ERR_SSL_RECEIVED_EARLY_DATA);
+
+        TEST_EQUAL(ret, 0);
+        TEST_EQUAL(mbedtls_test_move_handshake_to_state(
+                       &(client_ep.ssl), &(server_ep.ssl),
+                       MBEDTLS_SSL_HANDSHAKE_OVER), 0);
+
+        mbedtls_test_mock_socket_close(&(client_ep.socket));
+        mbedtls_test_mock_socket_close(&(server_ep.socket));
+
+        ret = mbedtls_ssl_session_reset(&(client_ep.ssl));
+        TEST_EQUAL(ret, 0);
+
+        ret = mbedtls_ssl_set_session(&(client_ep.ssl), &saved_session);
+        TEST_EQUAL(ret, 0);
+
+        ret = mbedtls_ssl_session_reset(&(server_ep.ssl));
+        TEST_EQUAL(ret, 0);
+
+        ret = mbedtls_test_mock_socket_connect(&(client_ep.socket),
+                                               &(server_ep.socket), 1024);
+        TEST_EQUAL(ret, 0);
+
+        previous_client_state = client_state;
+        if (previous_client_state == MBEDTLS_SSL_HANDSHAKE_OVER) {
+            break;
+        }
+
+        /* In case of HRR scenario, once we have been through it, move over
+         * the first ClientHello and ServerHello otherwise we just keep playing
+         * this first part of the handshake with HRR.
+         */
+        if ((scenario == TEST_EARLY_DATA_HRR) && (beyond_first_hello)) {
+            TEST_ASSERT(mbedtls_test_move_handshake_to_state(
+                            &(client_ep.ssl), &(server_ep.ssl),
+                            MBEDTLS_SSL_SERVER_HELLO) == 0);
+            TEST_ASSERT(mbedtls_test_move_handshake_to_state(
+                            &(client_ep.ssl), &(server_ep.ssl),
+                            MBEDTLS_SSL_CLIENT_HELLO) == 0);
+        }
+
+        TEST_EQUAL(mbedtls_test_move_handshake_to_state(
+                       &(client_ep.ssl), &(server_ep.ssl),
+                       previous_client_state), 0);
+
+        /* Progress the handshake from at least one state */
+        while (client_ep.ssl.state == previous_client_state) {
+            ret = mbedtls_ssl_handshake_step(&(client_ep.ssl));
+            TEST_ASSERT((ret == 0) ||
+                        (ret == MBEDTLS_ERR_SSL_WANT_READ) ||
+                        (ret == MBEDTLS_ERR_SSL_WANT_WRITE));
+            if (client_ep.ssl.state != previous_client_state) {
+                break;
+            }
+            ret = mbedtls_ssl_handshake_step(&(server_ep.ssl));
+            TEST_ASSERT((ret == 0) ||
+                        (ret == MBEDTLS_ERR_SSL_WANT_READ) ||
+                        (ret == MBEDTLS_ERR_SSL_WANT_WRITE));
+        }
+    } while (1);
+
+exit:
+    mbedtls_test_ssl_endpoint_free(&client_ep, NULL);
+    mbedtls_test_ssl_endpoint_free(&server_ep, NULL);
+    mbedtls_test_free_handshake_options(&client_options);
+    mbedtls_test_free_handshake_options(&server_options);
+    mbedtls_ssl_session_free(&saved_session);
+    PSA_DONE();
+}
+/* END_CASE */