tls13: server: parse pre_shared_key only when some psk is selectable
Signed-off-by: Pengyu Lv <pengyu.lv@arm.com>
diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index 2561239..456621b 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -1728,9 +1728,8 @@
* - The content up to but excluding the PSK extension, if present.
*/
/* If we've settled on a PSK-based exchange, parse PSK identity ext */
- if (mbedtls_ssl_tls13_some_psk_enabled(ssl) &&
- mbedtls_ssl_conf_tls13_some_psk_enabled(ssl) &&
- (handshake->received_extensions & MBEDTLS_SSL_EXT_MASK(PRE_SHARED_KEY))) {
+ if (ssl_tls13_check_psk_key_exchange(ssl) ||
+ ssl_tls13_check_psk_ephemeral_key_exchange(ssl)) {
ret = handshake->update_checksum(ssl, buf,
pre_shared_key_ext - buf);
if (0 != ret) {