diff --git a/configs/baremetal.h b/configs/baremetal.h
index aadbd09..9929d56 100644
--- a/configs/baremetal.h
+++ b/configs/baremetal.h
@@ -122,6 +122,8 @@
 #define MBEDTLS_X509_CHECK_KEY_USAGE
 #define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
 #define MBEDTLS_X509_REMOVE_INFO
+#define MBEDTLS_X509_CRT_REMOVE_TIME
+#define MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID
 #define MBEDTLS_X509_ON_DEMAND_PARSING
 #define MBEDTLS_X509_ALWAYS_FLUSH
 #define MBEDTLS_ASN1_PARSE_C
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 576349f..29e61db 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -793,6 +793,11 @@
 #error "MBEDTLS_X509_CSR_WRITE_C defined, but not all prerequisites"
 #endif
 
+#if defined(MBEDTLS_X509_CRT_REMOVE_TIME) && \
+    defined(MBEDTLS_HAVE_TIME_DATE)
+#error "MBEDTLS_X509_CRT_REMOVE_TIME and MBEDTLS_HAVE_TIME_DATE cannot be defined simultaneously"
+#endif
+
 #if defined(MBEDTLS_HAVE_INT32) && defined(MBEDTLS_HAVE_INT64)
 #error "MBEDTLS_HAVE_INT32 and MBEDTLS_HAVE_INT64 cannot be defined simultaneously"
 #endif /* MBEDTLS_HAVE_INT32 && MBEDTLS_HAVE_INT64 */
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 7475810..f8a99f2 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -1943,6 +1943,29 @@
 //#define MBEDTLS_X509_REMOVE_INFO
 
 /**
+ * \def MBEDTLS_X509_CRT_REMOVE_TIME
+ *
+ * Don't store time validity fields in X.509 certificate structures.
+ *
+ * Uncomment this to save some code and RAM on constrained systems which
+ * don't have time and where there's no use of the time validity fields
+ * in a certificate.
+ *
+ * Requires: !MBEDTLS_HAVE_TIME_DATE
+ */
+//#define MBEDTLS_X509_CRT_REMOVE_TIME
+
+/**
+ * \def MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID
+ *
+ * Don't store subject and issuer ID in X.509 certificate structures.
+ *
+ * Uncomment this to save some code and RAM on constrained systems which
+ * don't need to inspect issuer and subject ID fields in certificates.
+ */
+//#define MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID
+
+/**
  * \def MBEDTLS_X509_RSASSA_PSS_SUPPORT
  *
  * Enable parsing and verification of X.509 certificates, CRLs and CSRS
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index a41182c..b3fd7c4 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -366,6 +366,7 @@
 #define MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME    112  /* 0x70 */
 #define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY 115  /* 0x73 */
 #define MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL 120 /* 0x78 */
+#define MBEDTLS_SSL_ALERT_MSG_NONE                 255  /* internal */
 
 #define MBEDTLS_SSL_HS_HELLO_REQUEST            0
 #define MBEDTLS_SSL_HS_CLIENT_HELLO             1
@@ -1234,6 +1235,9 @@
 {
     const mbedtls_ssl_config *conf; /*!< configuration information          */
 
+    unsigned char pending_fatal_alert_msg; /*!< Type of a fatal alert
+                                            *   pending to be delivered.    */
+
     /*
      * Miscellaneous
      */
diff --git a/include/mbedtls/ssl_internal.h b/include/mbedtls/ssl_internal.h
index b8875ab..d3b426b 100644
--- a/include/mbedtls/ssl_internal.h
+++ b/include/mbedtls/ssl_internal.h
@@ -1724,4 +1724,28 @@
 
 #endif /* MBEDTLS_SSL_CONF_SINGLE_SIG_HASH */
 
+#if defined(__GNUC__) || defined(__arm__)
+#define MBEDTLS_ALWAYS_INLINE __attribute__((always_inline))
+#else
+#define MBEDTLS_ALWAYS_INLINE
+#endif
+
+/* This internal function can be used to pend a fatal alert for
+ * later delivery.
+ *
+ * The check for pending alerts must be done by calling
+ * the function ssl_send_pending_fatal_alert() in ssl_tls.c.
+ * Currently, it happens only during the handshake loop and after
+ * calling ssl_get_next_record() in the record processing stack.
+ *
+ * This function must not be called multiple times without
+ * sending the pending fatal alerts in between.
+ */
+MBEDTLS_ALWAYS_INLINE static inline void mbedtls_ssl_pend_fatal_alert(
+    mbedtls_ssl_context *ssl,
+    unsigned char message )
+{
+    ssl->pending_fatal_alert_msg = message;
+}
+
 #endif /* ssl_internal.h */
diff --git a/include/mbedtls/x509_crt.h b/include/mbedtls/x509_crt.h
index 5212e67..c8f488c 100644
--- a/include/mbedtls/x509_crt.h
+++ b/include/mbedtls/x509_crt.h
@@ -70,8 +70,10 @@
     uint32_t ext_types;                     /**< Bitfield indicating which extensions are present.
                                              *   See the values in x509.h.                                      */
 
+#if !defined(MBEDTLS_X509_CRT_REMOVE_TIME)
     mbedtls_x509_time valid_from;           /**< The start time of certificate validity.                        */
     mbedtls_x509_time valid_to;             /**< The end time of certificate validity.                          */
+#endif /* !MBEDTLS_X509_CRT_REMOVE_TIME */
 
     mbedtls_x509_buf_raw raw;               /**< The raw certificate data in DER.                               */
     mbedtls_x509_buf_raw tbs;               /**< The part of the CRT that is [T]o [B]e [S]igned.                */
@@ -80,10 +82,12 @@
 
     mbedtls_x509_buf_raw pubkey_raw;        /**< The raw public key data (DER).                                 */
 
+#if !defined(MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID)
     mbedtls_x509_buf_raw issuer_id;         /**< Optional X.509 v2/v3 issuer unique identifier.                 */
-    mbedtls_x509_buf_raw issuer_raw;        /**< The raw issuer data (DER). Used for quick comparison.          */
-
     mbedtls_x509_buf_raw subject_id;        /**< Optional X.509 v2/v3 subject unique identifier.                */
+#endif /* !MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
+
+    mbedtls_x509_buf_raw issuer_raw;        /**< The raw issuer data (DER). Used for quick comparison.          */
     mbedtls_x509_buf_raw subject_raw;       /**< The raw subject data (DER). Used for quick comparison.         */
 
     mbedtls_x509_buf_raw sig;               /**< Signature: hash of the tbs part signed with the private key.   */
@@ -123,14 +127,18 @@
     mbedtls_x509_name issuer;           /**< The parsed issuer data (named information object). */
     mbedtls_x509_name subject;          /**< The parsed subject data (named information object). */
 
+#if !defined(MBEDTLS_X509_CRT_REMOVE_TIME)
     mbedtls_x509_time valid_from;       /**< Start time of certificate validity. */
     mbedtls_x509_time valid_to;         /**< End time of certificate validity. */
+#endif /* !MBEDTLS_X509_CRT_REMOVE_TIME */
 
     mbedtls_x509_buf pk_raw;
     mbedtls_pk_context pk;              /**< Container for the public key context. */
 
+#if !defined(MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID)
     mbedtls_x509_buf issuer_id;         /**< Optional X.509 v2/v3 issuer unique identifier. */
     mbedtls_x509_buf subject_id;        /**< Optional X.509 v2/v3 subject unique identifier. */
+#endif /* !MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
     mbedtls_x509_buf v3_ext;            /**< Optional X.509 v3 extensions.  */
     mbedtls_x509_sequence subject_alt_names;    /**< Optional list of Subject Alternative Names (Only dNSName supported). */
 
diff --git a/library/ssl_cli.c b/library/ssl_cli.c
index 3d42155..003aa10 100644
--- a/library/ssl_cli.c
+++ b/library/ssl_cli.c
@@ -1185,8 +1185,8 @@
                           ssl->peer_verify_data, ssl->verify_data_len ) != 0 )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                   MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
             return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
         }
     }
@@ -1196,8 +1196,8 @@
         if( len != 1 || buf[0] != 0x00 )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                   MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
             return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
         }
 
@@ -1221,8 +1221,8 @@
         buf[0] != ssl->conf->mfl_code )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching max fragment length extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1239,8 +1239,8 @@
         len != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching truncated HMAC extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1265,16 +1265,16 @@
         ssl->negotiate_cid == MBEDTLS_SSL_CID_DISABLED )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "CID extension unexpected" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
     if( len == 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "CID extension invalid" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1284,16 +1284,16 @@
     if( peer_cid_len > MBEDTLS_SSL_CID_OUT_LEN_MAX )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "CID extension invalid" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
     if( len != peer_cid_len )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "CID extension invalid" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1318,8 +1318,8 @@
         len != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching encrypt-then-MAC extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1342,8 +1342,8 @@
         len != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching extended master secret extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1361,8 +1361,8 @@
         len != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching session ticket extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1386,8 +1386,8 @@
     if( len == 0 || (size_t)( buf[0] + 1 ) != len )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
     list_size = buf[0];
@@ -1413,8 +1413,8 @@
     }
 
     MBEDTLS_SSL_DEBUG_MSG( 1, ( "no point format in common" ) );
-    mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                    MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+    mbedtls_ssl_pend_fatal_alert( ssl,
+                                  MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
     return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
 }
 #endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
@@ -1444,8 +1444,8 @@
                                                 buf, len ) ) != 0 )
     {
         MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( ret );
     }
 
@@ -1464,8 +1464,8 @@
     if( ssl->conf->alpn_list == NULL )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching ALPN extension" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1482,24 +1482,24 @@
     /* Min length is 2 (list_len) + 1 (name_len) + 1 (name) */
     if( len < 4 )
     {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
     list_len = ( buf[0] << 8 ) | buf[1];
     if( list_len != len - 2 )
     {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
     name_len = buf[2];
     if( name_len != list_len - 1 )
     {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1515,8 +1515,8 @@
     }
 
     MBEDTLS_SSL_DEBUG_MSG( 1, ( "ALPN extension: no matching protocol" ) );
-    mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                    MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+    mbedtls_ssl_pend_fatal_alert( ssl,
+                                  MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
     return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
 }
 #endif /* MBEDTLS_SSL_ALPN */
@@ -1554,8 +1554,8 @@
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server version" ) );
 
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
 
         return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
     }
@@ -1567,8 +1567,8 @@
     {
         MBEDTLS_SSL_DEBUG_MSG( 1,
             ( "cookie length does not match incoming message size" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                    MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1651,8 +1651,8 @@
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
 
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
         return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
     }
 
@@ -1679,8 +1679,8 @@
         buf[0] != MBEDTLS_SSL_HS_SERVER_HELLO )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1718,8 +1718,8 @@
                          mbedtls_ssl_conf_get_max_major_ver( ssl->conf ),
                          mbedtls_ssl_conf_get_max_minor_ver( ssl->conf ) ) );
 
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                      MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                 MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
 
             return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
         }
@@ -1748,8 +1748,8 @@
     if( n > 32 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1762,8 +1762,8 @@
             ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + 40 + n + ext_len )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
             return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
         }
     }
@@ -1774,8 +1774,8 @@
     else
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -1798,8 +1798,8 @@
 #endif/* MBEDTLS_ZLIB_SUPPORT */
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "server hello, bad compression: %d", comp ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
         return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
     }
 
@@ -1813,8 +1813,8 @@
     if( server_suite_info == MBEDTLS_SSL_CIPHERSUITE_INVALID_HANDLE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "ciphersuite info for %04x not found", i ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
     }
     mbedtls_ssl_optimize_checksum( ssl, server_suite_info );
@@ -1853,8 +1853,8 @@
         if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
         {
             MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                  MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
             return( ret );
         }
     }
@@ -1903,8 +1903,8 @@
     /* If we reach this code-path, the server's chosen ciphersuite
      * wasn't among those advertised by us. */
     MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-    mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                    MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+    mbedtls_ssl_pend_fatal_alert( ssl,
+                                  MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
     return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
 
 server_picked_valid_suite:
@@ -1928,8 +1928,8 @@
       )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                   MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
     ssl->session_negotiate->compression = comp;
@@ -1949,8 +1949,8 @@
         if( ext_size + 4 > ext_len )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
             return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
         }
 
@@ -2161,8 +2161,8 @@
 
     if( handshake_failure == 1 )
     {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
     }
 
@@ -2608,8 +2608,8 @@
         if( ( ret = ssl_get_ecdh_params_from_cert( ssl ) ) != 0 )
         {
             MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_ecdh_params_from_cert", ret );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                    MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
             return( ret );
         }
 
@@ -2639,8 +2639,8 @@
     if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                               MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
         return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
     }
 
@@ -2663,8 +2663,8 @@
 
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key exchange message must "
                                     "not be skipped" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                               MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
 
         return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
     }
@@ -2692,8 +2692,8 @@
         if( ssl_parse_server_psk_hint( ssl, &p, end ) != 0 )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                               MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
             return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
         }
     } /* FALLTROUGH */
@@ -2721,8 +2721,8 @@
         if( ssl_parse_server_dh_params( ssl, &p, end ) != 0 )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                   MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
             return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
         }
     }
@@ -2742,8 +2742,8 @@
         if( ssl_parse_server_ecdh_params( ssl, &p, end ) != 0 )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                   MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
             return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
         }
     }
@@ -2760,8 +2760,8 @@
         if( ret != 0 )
         {
             MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_two", ret );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                   MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
             return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
         }
     }
@@ -2795,16 +2795,16 @@
                                                &md_alg, &pk_alg ) != 0 )
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                                    MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
                 return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
             }
 
             if( pk_alg != mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ) )
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                                     MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
                 return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
             }
         }
@@ -2834,8 +2834,8 @@
         if( p > end - 2 )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
             return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
         }
         sig_len = ( p[0] << 8 ) | p[1];
@@ -2844,8 +2844,8 @@
         if( p != end - sig_len )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
             return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
         }
 
@@ -2912,8 +2912,8 @@
         if( !mbedtls_pk_can_do( peer_pk, pk_alg ) )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
 #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
             mbedtls_x509_crt_pk_release( ssl->session_negotiate->peer_cert );
 #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
@@ -2931,8 +2931,10 @@
 #if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
             if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
 #endif
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR );
+            {
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                                     MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR );
+            }
             MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret );
 #if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
             if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
@@ -3009,8 +3011,8 @@
     if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                              MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
         return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
     }
 
@@ -3057,8 +3059,8 @@
     if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                               MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
     }
     cert_type_len = buf[mbedtls_ssl_hs_hdr_len( ssl )];
@@ -3077,8 +3079,8 @@
     if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
     }
 
@@ -3108,8 +3110,8 @@
         if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n + sig_alg_len )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
             return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
         }
 
@@ -3134,8 +3136,8 @@
     if( ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
     }
 
@@ -3168,8 +3170,8 @@
         ssl->in_msg[0] != MBEDTLS_SSL_HS_SERVER_HELLO_DONE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE );
     }
 
@@ -3709,8 +3711,8 @@
     if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                         MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
         return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
     }
 
@@ -3728,8 +3730,8 @@
         ssl->in_hslen < 6 + mbedtls_ssl_hs_hdr_len( ssl ) )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET );
     }
 
@@ -3743,8 +3745,8 @@
     if( ticket_len + 6 + mbedtls_ssl_hs_hdr_len( ssl ) != ssl->in_hslen )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET );
     }
 
@@ -3779,8 +3781,8 @@
     if( ( ticket = mbedtls_calloc( 1, ticket_len ) ) == NULL )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "ticket alloc failed" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
         return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
     }
 
diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index cb88be6..573f327 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -94,16 +94,16 @@
     if( len < 2 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
     servername_list_size = ( ( buf[0] << 8 ) | ( buf[1] ) );
     if( servername_list_size + 2 != len )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -114,8 +114,8 @@
         if( hostname_len + 3 > servername_list_size )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
             return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
         }
 
@@ -126,7 +126,7 @@
             if( ret != 0 )
             {
                 MBEDTLS_SSL_DEBUG_RET( 1, "ssl_sni_wrapper", ret );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                mbedtls_ssl_pend_fatal_alert( ssl,
                         MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME );
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
@@ -140,8 +140,8 @@
     if( servername_list_size != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -163,8 +163,8 @@
                           ssl->verify_data_len ) != 0 )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                  MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
             return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
         }
     }
@@ -174,8 +174,8 @@
         if( len != 1 || buf[0] != 0x0 )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                  MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
             return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
         }
 
@@ -214,8 +214,8 @@
 
     if ( len < 2 ) {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
     sig_alg_list_size = ( ( buf[0] << 8 ) | ( buf[1] ) );
@@ -223,8 +223,8 @@
         sig_alg_list_size % 2 != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -287,8 +287,8 @@
 
     if ( len < 2 ) {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
     list_size = ( ( buf[0] << 8 ) | ( buf[1] ) );
@@ -296,8 +296,8 @@
         list_size % 2 != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -336,8 +336,8 @@
     if( len == 0 || (size_t)( buf[0] + 1 ) != len )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
     list_size = buf[0];
@@ -384,8 +384,8 @@
                                                 buf, len ) ) != 0 )
     {
         MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
         return( ret );
     }
 
@@ -404,8 +404,8 @@
     if( len != 1 || buf[0] >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -426,8 +426,8 @@
     if( MBEDTLS_SSL_TRANSPORT_IS_TLS( ssl->conf->transport ) )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -443,8 +443,8 @@
     if( len < 1 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -454,8 +454,8 @@
     if( len != peer_cid_len )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -471,8 +471,8 @@
     if( peer_cid_len > MBEDTLS_SSL_CID_OUT_LEN_MAX )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -495,8 +495,8 @@
     if( len != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -517,7 +517,7 @@
     if( len != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+        mbedtls_ssl_pend_fatal_alert( ssl,
                                         MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
@@ -542,8 +542,8 @@
     if( len != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -650,16 +650,16 @@
     /* Min length is 2 (list_len) + 1 (name_len) + 1 (name) */
     if( len < 4 )
     {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
     list_len = ( buf[0] << 8 ) | buf[1];
     if( list_len != len - 2 )
     {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -675,16 +675,16 @@
         /* Current identifier must fit in list */
         if( cur_len > (size_t)( end - theirs ) )
         {
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
             return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
         }
 
         /* Empty strings MUST NOT be included */
         if( cur_len == 0 )
         {
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
             return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
         }
     }
@@ -709,8 +709,8 @@
     }
 
     /* If we get there, no match was found */
-    mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                            MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL );
+    mbedtls_ssl_pend_fatal_alert( ssl,
+                                  MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL );
     return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
 }
 #endif /* MBEDTLS_SSL_ALPN */
@@ -1056,8 +1056,8 @@
     if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "client hello v2 illegal for renegotiation" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
@@ -1112,8 +1112,8 @@
                             mbedtls_ssl_conf_get_min_major_ver( ssl->conf ),
                             mbedtls_ssl_conf_get_min_minor_ver( ssl->conf ) ) );
 
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
         return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
     }
 
@@ -1210,8 +1210,8 @@
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV "
                                     "during renegotiation" ) );
 
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                             MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
@@ -1234,8 +1234,8 @@
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "inapropriate fallback" ) );
 
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                         MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK );
 
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
@@ -1323,8 +1323,8 @@
           MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -1652,8 +1652,8 @@
                             major_ver, minor_ver,
                             mbedtls_ssl_conf_get_min_major_ver( ssl->conf ),
                             mbedtls_ssl_conf_get_min_minor_ver( ssl->conf ) ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                  MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
             return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
         }
 
@@ -1689,8 +1689,8 @@
         sess_len + 34 + 2 > msg_len ) /* 2 for cipherlist length field */
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -1714,8 +1714,8 @@
         if( cookie_offset + 1 + cookie_len + 2 > msg_len )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                               MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
             return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
         }
 
@@ -1774,8 +1774,8 @@
         ( ciph_len % 2 ) != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -1794,8 +1794,8 @@
         comp_len + comp_offset + 1 > msg_len )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -1835,8 +1835,8 @@
             if( msg_len < ext_offset + 2 )
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
 
@@ -1847,8 +1847,8 @@
                 msg_len != ext_offset + 2 + ext_len )
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                                         MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
         }
@@ -1864,8 +1864,8 @@
             unsigned int ext_size;
             if ( ext_len < 4 ) {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                               MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                                         MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
             ext_id   = ( ( ext[0] <<  8 ) | ( ext[1] ) );
@@ -1874,8 +1874,8 @@
             if( ext_size + 4 > ext_len )
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
             switch( ext_id )
@@ -2033,8 +2033,8 @@
             if( ext_len > 0 && ext_len < 4 )
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                                         MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
         }
@@ -2055,8 +2055,8 @@
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "inapropriate fallback" ) );
 
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                              MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK );
 
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
@@ -2099,8 +2099,8 @@
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV "
                                             "during renegotiation" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                                    MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
                 return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
             }
 #endif
@@ -2169,8 +2169,8 @@
 
     if( handshake_failure == 1 )
     {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
     }
 
@@ -2229,15 +2229,15 @@
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "got ciphersuites in common, "
                             "but none of them usable" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                          MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE );
     }
     else
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                           MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
         return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN );
     }
 
@@ -4024,8 +4024,8 @@
     if( ret == MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY )
     {
         MBEDTLS_SSL_DEBUG_BUF( 3, "Unknown PSK identity", *p, n );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                 MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY );
         return( MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY );
     }
 
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index fc7ece7..0b86e36 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -75,6 +75,17 @@
 #endif
 }
 
+static void ssl_send_pending_fatal_alert( mbedtls_ssl_context *ssl )
+{
+    if( ssl->pending_fatal_alert_msg == MBEDTLS_SSL_ALERT_MSG_NONE )
+        return;
+
+    mbedtls_ssl_send_alert_message( ssl,
+                                    MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                    ssl->pending_fatal_alert_msg );
+    ssl->pending_fatal_alert_msg = MBEDTLS_SSL_ALERT_MSG_NONE;
+}
+
 /*
  * Start a timer.
  * Passing millisecs = 0 cancels a running timer.
@@ -4708,8 +4719,8 @@
          * Section 4.1.2.7, that is, send alert only with TLS */
         if( MBEDTLS_SSL_TRANSPORT_IS_TLS( ssl->conf->transport ) )
         {
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                    MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
         }
 #endif /* MBEDTLS_SSL_PROTO_TLS */
 
@@ -5105,6 +5116,7 @@
                     if( ret != 0 )
                     {
                         MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_get_next_record" ), ret );
+                        ssl_send_pending_fatal_alert( ssl );
                         return( ret );
                     }
                 }
@@ -5833,8 +5845,7 @@
 #if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
                     if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
                     {
-                        mbedtls_ssl_send_alert_message( ssl,
-                                MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                        mbedtls_ssl_pend_fatal_alert( ssl,
                                 MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC );
                     }
 #endif
@@ -5870,8 +5881,7 @@
 #if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
             if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
             {
-                mbedtls_ssl_send_alert_message( ssl,
-                        MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                mbedtls_ssl_pend_fatal_alert( ssl,
                         MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC );
             }
 #endif
@@ -6033,8 +6043,8 @@
 }
 
 int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *ssl,
-                            unsigned char level,
-                            unsigned char message )
+                                    unsigned char level,
+                                    unsigned char message )
 {
     int ret;
 
@@ -6308,8 +6318,8 @@
     if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                            MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
         return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
     }
 
@@ -6317,8 +6327,8 @@
         ssl->in_hslen < mbedtls_ssl_hs_hdr_len( ssl ) + 3 + 3 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
     }
 
@@ -6333,8 +6343,8 @@
         ssl->in_hslen != n + 3 + mbedtls_ssl_hs_hdr_len( ssl ) )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
     }
 
@@ -6347,9 +6357,8 @@
         /* Check that there's room for the next CRT's length fields. */
         if ( i + 3 > ssl->in_hslen ) {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-            mbedtls_ssl_send_alert_message( ssl,
-                              MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                              MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
             return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
         }
         /* In theory, the CRT can be up to 2**24 Bytes, but we don't support
@@ -6357,9 +6366,8 @@
         if( ssl->in_msg[i] != 0 )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-            mbedtls_ssl_send_alert_message( ssl,
-                            MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
             return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
         }
 
@@ -6371,9 +6379,8 @@
         if( n < 128 || i + n > ssl->in_hslen )
         {
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-            mbedtls_ssl_send_alert_message( ssl,
-                                 MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                 MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                          MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
             return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
         }
 
@@ -6394,9 +6401,8 @@
                                               n ) != 0 )
             {
                 MBEDTLS_SSL_DEBUG_MSG( 1, ( "new server cert during renegotiation" ) );
-                mbedtls_ssl_send_alert_message( ssl,
-                                                MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED );
+                mbedtls_ssl_pend_fatal_alert( ssl,
+                                       MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED );
                 return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
             }
 
@@ -6432,7 +6438,7 @@
             default:
                 alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT;
             crt_parse_der_failed:
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, alert );
+                mbedtls_ssl_pend_fatal_alert( ssl,  alert );
                 MBEDTLS_SSL_DEBUG_RET( 1, " mbedtls_x509_crt_parse_der", ret );
                 return( ret );
         }
@@ -6666,8 +6672,7 @@
             alert = MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA;
         else
             alert = MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN;
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        alert );
+        mbedtls_ssl_pend_fatal_alert( ssl, alert );
     }
 
 #if defined(MBEDTLS_DEBUG_C)
@@ -6699,9 +6704,8 @@
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed",
                                     sizeof( MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN ) ) );
-        mbedtls_ssl_send_alert_message( ssl,
-                                        MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
 
         return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
     }
@@ -6804,9 +6808,8 @@
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed",
                                     sizeof( mbedtls_x509_crt ) ) );
-        mbedtls_ssl_send_alert_message( ssl,
-                                        MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
 
         ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
         goto exit;
@@ -6937,8 +6940,8 @@
     if( ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad change cipher spec message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                             MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
         return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
     }
 
@@ -6985,8 +6988,8 @@
         if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_INBOUND ) ) != 0 )
         {
             MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+            mbedtls_ssl_pend_fatal_alert( ssl,
+                                  MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
             return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
         }
     }
@@ -7579,8 +7582,8 @@
     if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                               MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
         return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
     }
 
@@ -7596,8 +7599,8 @@
         ssl->in_hslen  != mbedtls_ssl_hs_hdr_len( ssl ) + hash_len )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED );
     }
 
@@ -7605,8 +7608,8 @@
                       buf, hash_len ) != 0 )
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
         return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED );
     }
 
@@ -7983,6 +7986,8 @@
     if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
         goto error;
 
+    ssl->pending_fatal_alert_msg = MBEDTLS_SSL_ALERT_MSG_NONE;
+
     return( 0 );
 
 error:
@@ -9835,6 +9840,7 @@
         ret = mbedtls_ssl_handshake_server_step( ssl );
 #endif
 
+    ssl_send_pending_fatal_alert( ssl );
     return( ret );
 }
 
@@ -10234,12 +10240,11 @@
     defined(MBEDTLS_SSL_PROTO_TLS1_2)
                 if( mbedtls_ssl_get_minor_ver( ssl ) >= MBEDTLS_SSL_MINOR_VERSION_1 )
                 {
-                    if( ( ret = mbedtls_ssl_send_alert_message( ssl,
-                                    MBEDTLS_SSL_ALERT_LEVEL_WARNING,
-                                    MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION ) ) != 0 )
-                    {
+                    ret = mbedtls_ssl_send_alert_message( ssl,
+                                             MBEDTLS_SSL_ALERT_LEVEL_WARNING,
+                                             MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION );
+                    if( ret != 0 )
                         return( ret );
-                    }
                 }
                 else
 #endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 ||
@@ -11520,8 +11525,8 @@
     mbedtls_sha1_free( &mbedtls_sha1 );
 
     if( ret != 0 )
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
 
     return( ret );
 
@@ -11580,8 +11585,8 @@
     mbedtls_md_free( &ctx );
 
     if( ret != 0 )
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+        mbedtls_ssl_pend_fatal_alert( ssl,
+                                      MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
 
     return( ret );
 }
diff --git a/library/version_features.c b/library/version_features.c
index 3753864..51ce780 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -564,6 +564,12 @@
 #if defined(MBEDTLS_X509_REMOVE_INFO)
     "MBEDTLS_X509_REMOVE_INFO",
 #endif /* MBEDTLS_X509_REMOVE_INFO */
+#if defined(MBEDTLS_X509_CRT_REMOVE_TIME)
+    "MBEDTLS_X509_CRT_REMOVE_TIME",
+#endif /* MBEDTLS_X509_CRT_REMOVE_TIME */
+#if defined(MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID)
+    "MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID",
+#endif /* MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
     "MBEDTLS_X509_RSASSA_PSS_SUPPORT",
 #endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
diff --git a/library/x509_crt.c b/library/x509_crt.c
index 24ef0e6..4e5ff43 100644
--- a/library/x509_crt.c
+++ b/library/x509_crt.c
@@ -223,16 +223,22 @@
     frame->version = crt->version;
     frame->sig_md = crt->sig_md;
     frame->sig_pk = crt->sig_pk;
+
+#if !defined(MBEDTLS_X509_CRT_REMOVE_TIME)
     frame->valid_from = crt->valid_from;
     frame->valid_to = crt->valid_to;
+#endif /* !MBEDTLS_X509_CRT_REMOVE_TIME */
+
     x509_buf_to_buf_raw( &frame->raw, &crt->raw );
     x509_buf_to_buf_raw( &frame->tbs, &crt->tbs );
     x509_buf_to_buf_raw( &frame->serial, &crt->serial );
     x509_buf_to_buf_raw( &frame->pubkey_raw, &crt->pk_raw );
     x509_buf_to_buf_raw( &frame->issuer_raw, &crt->issuer_raw );
     x509_buf_to_buf_raw( &frame->subject_raw, &crt->subject_raw );
+#if !defined(MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID)
     x509_buf_to_buf_raw( &frame->subject_id, &crt->subject_id );
     x509_buf_to_buf_raw( &frame->issuer_id, &crt->issuer_id );
+#endif /* !MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
     x509_buf_to_buf_raw( &frame->sig, &crt->sig );
     x509_buf_to_buf_raw( &frame->v3_ext, &crt->v3_ext );
 
@@ -694,6 +700,7 @@
     return( 0 );
 }
 
+#if !defined(MBEDTLS_X509_CRT_REMOVE_TIME)
 /*
  *  Validity ::= SEQUENCE {
  *       notBefore      Time,
@@ -725,7 +732,28 @@
 
     return( 0 );
 }
+#else /* !MBEDTLS_X509_CRT_REMOVE_TIME */
+static int x509_skip_dates( unsigned char **p,
+                           const unsigned char *end )
+{
+    int ret;
+    size_t len;
 
+    if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
+            MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
+        return( MBEDTLS_ERR_X509_INVALID_DATE + ret );
+
+    end = *p + len;
+
+    if( *p != end )
+        return( MBEDTLS_ERR_X509_INVALID_DATE +
+                MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
+
+    return( 0 );
+}
+#endif /* MBEDTLS_X509_CRT_REMOVE_TIME */
+
+#if !defined(MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID)
 /*
  * X.509 v2/v3 unique identifier (not parsed)
  */
@@ -752,6 +780,30 @@
 
     return( 0 );
 }
+#else /* !MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
+static int x509_skip_uid( unsigned char **p,
+                          const unsigned char *end,
+                          int n )
+{
+    int ret;
+    size_t len;
+
+    if( *p == end )
+        return( 0 );
+
+    if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
+            MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | n ) ) != 0 )
+    {
+        if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
+            return( 0 );
+
+        return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
+    }
+
+    *p += len;
+    return( 0 );
+}
+#endif /* MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
 
 static int x509_get_basic_constraints( unsigned char **p,
                                        const unsigned char *end,
@@ -1293,9 +1345,15 @@
     /*
      * Validity ::= SEQUENCE { ...
      */
+#if !defined(MBEDTLS_X509_CRT_REMOVE_TIME)
     ret = x509_get_dates( &p, end, &frame->valid_from, &frame->valid_to );
     if( ret != 0 )
         return( ret );
+#else /* !MBEDTLS_X509_CRT_REMOVE_TIME */
+    ret = x509_skip_dates( &p, end );
+    if( ret != 0 )
+        return( ret );
+#endif /* MBEDTLS_X509_CRT_REMOVE_TIME */
 
     /*
      * subject              Name
@@ -1334,6 +1392,7 @@
 
     if( frame->version != 1 )
     {
+#if !defined(MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID)
         /*
          *  issuerUniqueID  [1]  IMPLICIT UniqueIdentifier OPTIONAL,
          *                       -- If present, version shall be v2 or v3
@@ -1349,6 +1408,14 @@
         ret = x509_get_uid( &p, end, &frame->subject_id, 2 /* implicit tag */ );
         if( ret != 0 )
             return( ret );
+#else /* !MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
+        ret = x509_skip_uid( &p, end, 1 /* implicit tag */ );
+        if( ret != 0 )
+            return( ret );
+        ret = x509_skip_uid( &p, end, 2 /* implicit tag */ );
+        if( ret != 0 )
+            return( ret );
+#endif /* MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
     }
 
     /*
@@ -1531,13 +1598,19 @@
     x509_buf_raw_to_buf( &crt->serial, &frame->serial );
     x509_buf_raw_to_buf( &crt->issuer_raw, &frame->issuer_raw );
     x509_buf_raw_to_buf( &crt->subject_raw, &frame->subject_raw );
+#if !defined(MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID)
     x509_buf_raw_to_buf( &crt->issuer_id, &frame->issuer_id );
     x509_buf_raw_to_buf( &crt->subject_id, &frame->subject_id );
+#endif /* !MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
     x509_buf_raw_to_buf( &crt->pk_raw, &frame->pubkey_raw );
     x509_buf_raw_to_buf( &crt->sig, &frame->sig );
     x509_buf_raw_to_buf( &crt->v3_ext, &frame->v3_ext );
+
+#if !defined(MBEDTLS_X509_CRT_REMOVE_TIME)
     crt->valid_from = frame->valid_from;
     crt->valid_to = frame->valid_to;
+#endif /* !MBEDTLS_X509_CRT_REMOVE_TIME */
+
     crt->version      = frame->version;
     crt->ca_istrue    = frame->ca_istrue;
     crt->max_pathlen  = frame->max_pathlen;
@@ -2270,6 +2343,7 @@
     ret = mbedtls_x509_dn_gets( p, n, subject );
     MBEDTLS_X509_SAFE_SNPRINTF_WITH_CLEANUP;
 
+#if !defined(MBEDTLS_X509_CRT_REMOVE_TIME)
     ret = mbedtls_snprintf( p, n, "\n%sissued  on        : " \
                    "%04d-%02d-%02d %02d:%02d:%02d", prefix,
                    frame.valid_from.year, frame.valid_from.mon,
@@ -2283,6 +2357,7 @@
                    frame.valid_to.day,  frame.valid_to.hour,
                    frame.valid_to.min,  frame.valid_to.sec );
     MBEDTLS_X509_SAFE_SNPRINTF_WITH_CLEANUP;
+#endif /* MBEDTLS_X509_CRT_REMOVE_TIME */
 
     ret = mbedtls_snprintf( p, n, "\n%ssigned using      : ", prefix );
     MBEDTLS_X509_SAFE_SNPRINTF_WITH_CLEANUP;
@@ -2897,11 +2972,13 @@
             if( ret != 0 )
                 return( MBEDTLS_ERR_X509_FATAL_ERROR );
 
+#if !defined(MBEDTLS_X509_CRT_REMOVE_TIME)
             if( !mbedtls_x509_time_is_past( &parent->valid_to ) &&
                 !mbedtls_x509_time_is_future( &parent->valid_from ) )
             {
                 parent_valid = 1;
             }
+#endif /* !MBEDTLS_X509_CRT_REMOVE_TIME */
 
             /* basic parenting skills (name, CA bit, key usage) */
             if( x509_crt_check_parent( child_sig, parent, top ) == 0 )
@@ -3198,11 +3275,13 @@
                 if( ret != 0 )
                     return( MBEDTLS_ERR_X509_FATAL_ERROR );
 
+#if !defined(MBEDTLS_X509_CRT_REMOVE_TIME)
                 /* Check time-validity (all certificates) */
                 if( mbedtls_x509_time_is_past( &child->valid_to ) )
                     *flags |= MBEDTLS_X509_BADCERT_EXPIRED;
                 if( mbedtls_x509_time_is_future( &child->valid_from ) )
                     *flags |= MBEDTLS_X509_BADCERT_FUTURE;
+#endif /* !MBEDTLS_X509_CRT_REMOVE_TIME */
 
                 /* Stop here for trusted roots (but not for trusted EE certs) */
                 if( child_is_trusted )
diff --git a/programs/ssl/query_config.c b/programs/ssl/query_config.c
index 6766314..0f7251d 100644
--- a/programs/ssl/query_config.c
+++ b/programs/ssl/query_config.c
@@ -1546,6 +1546,22 @@
     }
 #endif /* MBEDTLS_X509_REMOVE_INFO */
 
+#if defined(MBEDTLS_X509_CRT_REMOVE_TIME)
+    if( strcmp( "MBEDTLS_X509_CRT_REMOVE_TIME", config ) == 0 )
+    {
+        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_CRT_REMOVE_TIME );
+        return( 0 );
+    }
+#endif /* MBEDTLS_X509_CRT_REMOVE_TIME */
+
+#if defined(MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID)
+    if( strcmp( "MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID", config ) == 0 )
+    {
+        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID );
+        return( 0 );
+    }
+#endif /* MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
+
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
     if( strcmp( "MBEDTLS_X509_RSASSA_PSS_SUPPORT", config ) == 0 )
     {
diff --git a/scripts/config.pl b/scripts/config.pl
index 1c7c736..e4648de 100755
--- a/scripts/config.pl
+++ b/scripts/config.pl
@@ -39,6 +39,8 @@
 #   MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
 #       - this could be enabled if the respective tests were adapted
 #   MBEDTLS_X509_REMOVE_INFO
+#   MBEDTLS_X509_CRT_REMOVE_TIME
+#   MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID
 #   MBEDTLS_ZLIB_SUPPORT
 #   MBEDTLS_PKCS11_C
 #   and any symbol beginning _ALT
@@ -102,6 +104,8 @@
 MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
 MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
 MBEDTLS_X509_REMOVE_INFO
+MBEDTLS_X509_CRT_REMOVE_TIME
+MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID
 MBEDTLS_ZLIB_SUPPORT
 MBEDTLS_PKCS11_C
 MBEDTLS_NO_UDBL_DIVISION