diff options
| author | Matt Caswell <matt@openssl.org> | 2018-09-03 17:12:34 +0200 |
|---|---|---|
| committer | Matt Caswell <matt@openssl.org> | 2018-09-04 12:28:01 +0200 |
| commit | b8fef8ee929a8775262cb4371f62c35f7058dbed (patch) | |
| tree | 98b1464f780995c9e74c9a4e70eae179d546eeae /ssl/t1_lib.c | |
| parent | Test creation of tickets when using a TLSv1.3 PSK (diff) | |
| download | openssl-b8fef8ee929a8775262cb4371f62c35f7058dbed.tar.xz openssl-b8fef8ee929a8775262cb4371f62c35f7058dbed.zip | |
Don't use an RSA-PSS cert for RSA key exchange
If we have selected a ciphersuite using RSA key exchange then we must
not attempt to use an RSA-PSS cert for that.
Fixes #7059
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7099)
Diffstat (limited to 'ssl/t1_lib.c')
| -rw-r--r-- | ssl/t1_lib.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c index ca05a3a55a..156497988a 100644 --- a/ssl/t1_lib.c +++ b/ssl/t1_lib.c @@ -2473,7 +2473,10 @@ static int tls12_get_cert_sigalg_idx(const SSL *s, const SIGALG_LOOKUP *lu) const SSL_CERT_LOOKUP *clu = ssl_cert_lookup_by_idx(sig_idx); /* If not recognised or not supported by cipher mask it is not suitable */ - if (clu == NULL || !(clu->amask & s->s3->tmp.new_cipher->algorithm_auth)) + if (clu == NULL + || (clu->amask & s->s3->tmp.new_cipher->algorithm_auth) == 0 + || (clu->nid == EVP_PKEY_RSA_PSS + && (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kRSA) != 0)) return -1; return s->s3->tmp.valid_flags[sig_idx] & CERT_PKEY_VALID ? sig_idx : -1; @@ -2643,8 +2646,9 @@ int tls_choose_sigalg(SSL *s, int fatalerrs) if (i == s->cert->shared_sigalgslen) { if (!fatalerrs) return 1; - SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CHOOSE_SIGALG, - ERR_R_INTERNAL_ERROR); + SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, + SSL_F_TLS_CHOOSE_SIGALG, + SSL_R_NO_SUITABLE_SIGNATURE_ALGORITHM); return 0; } } else { |