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authorMaxim Dounin <mdounin@mdounin.ru>2018-09-25 14:00:04 +0300
committerMaxim Dounin <mdounin@mdounin.ru>2018-09-25 14:00:04 +0300
commitb7edec61c3f37ebce5f55c4ec613b2275c11a7d7 (patch)
tree4f12dacfe1b100e8e7165976be5a587ef823f490 /src
parent31ef0c47ca676c6640dc535fd5720a831b4c046c (diff)
downloadnginx-b7edec61c3f37ebce5f55c4ec613b2275c11a7d7.tar.gz
nginx-b7edec61c3f37ebce5f55c4ec613b2275c11a7d7.zip
SSL: logging level of "no suitable signature algorithm".
The "no suitable signature algorithm" errors are reported by OpenSSL 1.1.1 when using TLSv1.3 if there are no shared signature algorithms. In particular, this can happen if the client limits available signature algorithms to something we don't have a certificate for, or to an empty list. For example, the following command: openssl s_client -connect 127.0.0.1:8443 -sigalgs rsa_pkcs1_sha1 will always result in the "no suitable signature algorithm" error as the "rsa_pkcs1_sha1" algorithm refers solely to signatures which appear in certificates and not defined for use in TLS 1.3 handshake messages. The SSL_R_NO_COMMON_SIGNATURE_ALGORITHMS error is what BoringSSL returns in the same situation.
Diffstat (limited to 'src')
-rw-r--r--src/event/ngx_event_openssl.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index a11a7e5e3..3a0e150d2 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -2588,6 +2588,9 @@ ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
#ifdef SSL_R_NO_SUITABLE_KEY_SHARE
|| n == SSL_R_NO_SUITABLE_KEY_SHARE /* 101 */
#endif
+#ifdef SSL_R_NO_SUITABLE_SIGNATURE_ALGORITHM
+ || n == SSL_R_NO_SUITABLE_SIGNATURE_ALGORITHM /* 118 */
+#endif
|| n == SSL_R_BLOCK_CIPHER_PAD_IS_WRONG /* 129 */
|| n == SSL_R_DIGEST_CHECK_FAILED /* 149 */
|| n == SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST /* 151 */
@@ -2609,6 +2612,9 @@ ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
|| n == SSL_R_UNEXPECTED_RECORD /* 245 */
|| n == SSL_R_UNKNOWN_ALERT_TYPE /* 246 */
|| n == SSL_R_UNKNOWN_PROTOCOL /* 252 */
+#ifdef SSL_R_NO_COMMON_SIGNATURE_ALGORITHMS
+ || n == SSL_R_NO_COMMON_SIGNATURE_ALGORITHMS /* 253 */
+#endif
|| n == SSL_R_UNSUPPORTED_PROTOCOL /* 258 */
#ifdef SSL_R_NO_SHARED_GROUP
|| n == SSL_R_NO_SHARED_GROUP /* 266 */