diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 1114056..d8d79d7 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -4216,6 +4216,9 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
         conf->min_tls_version = MBEDTLS_SSL_VERSION_TLS1_2;
         conf->max_tls_version = MBEDTLS_SSL_VERSION_TLS1_2;
+#elif defined(MBEDTLS_SSL_PROTO_TLS1_3)
+        conf->min_tls_version = MBEDTLS_SSL_VERSION_TLS1_3;
+        conf->max_tls_version = MBEDTLS_SSL_VERSION_TLS1_3;
 #else
         return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
 #endif
@@ -7771,4 +7774,43 @@
 }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
+int mbedtls_ssl_validate_ciphersuite(
+    const mbedtls_ssl_context *ssl,
+    const mbedtls_ssl_ciphersuite_t *suite_info,
+    mbedtls_ssl_protocol_version min_tls_version,
+    mbedtls_ssl_protocol_version max_tls_version )
+{
+    (void) ssl;
+
+    if( suite_info == NULL )
+        return( -1 );
+
+    if( ( suite_info->min_tls_version > max_tls_version ) ||
+        ( suite_info->max_tls_version < min_tls_version ) )
+    {
+        return( -1 );
+    }
+
+#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
+#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
+    if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE &&
+        mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 )
+    {
+        return( -1 );
+    }
+#endif
+
+    /* Don't suggest PSK-based ciphersuite if no PSK is available. */
+#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
+    if( mbedtls_ssl_ciphersuite_uses_psk( suite_info ) &&
+        mbedtls_ssl_conf_has_static_psk( ssl->conf ) == 0 )
+    {
+        return( -1 );
+    }
+#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
+#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
+
+    return( 0 );
+}
+
 #endif /* MBEDTLS_SSL_TLS_C */