diff --git a/library/ssl_srv.c b/library/ssl_srv.c index 1a63173204..8d5e39fe3a 100644 --- a/library/ssl_srv.c +++ b/library/ssl_srv.c @@ -2354,12 +2354,8 @@ static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, const mbedtls_ssl_ciphersuite_t *suite = NULL; const mbedtls_cipher_info_t *cipher = NULL; - if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED || - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - *olen = 0; - return; - } + if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_DISABLED; /* * RFC 7366: "If a server receives an encrypt-then-MAC request extension @@ -2371,6 +2367,11 @@ static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl, ssl->session_negotiate->ciphersuite ) ) == NULL || ( cipher = mbedtls_cipher_info_from_type( suite->cipher ) ) == NULL || cipher->mode != MBEDTLS_MODE_CBC ) + { + ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_DISABLED; + } + + if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED ) { *olen = 0; return;