diff options
Diffstat (limited to 'ssl/t1_lib.c')
| -rw-r--r-- | ssl/t1_lib.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c index 48d46f8a48..93228ec183 100644 --- a/ssl/t1_lib.c +++ b/ssl/t1_lib.c @@ -2441,7 +2441,8 @@ DH *ssl_get_auto_dh(SSL *s) { DH *dhp = NULL; BIGNUM *p = NULL, *g = NULL; - int dh_secbits = 80; + int dh_secbits = 80, sec_level_bits; + if (s->cert->dh_tmp_auto != 2) { if (s->s3->tmp.new_cipher->algorithm_auth & (SSL_aNULL | SSL_aPSK)) { if (s->s3->tmp.new_cipher->strength_bits == 256) @@ -2464,6 +2465,12 @@ DH *ssl_get_auto_dh(SSL *s) BN_free(g); return NULL; } + + /* Do not pick a prime that is too weak for the current security level */ + sec_level_bits = ssl_get_security_level_bits(s, NULL, NULL); + if (dh_secbits < sec_level_bits) + dh_secbits = sec_level_bits; + if (dh_secbits >= 192) p = BN_get_rfc3526_prime_8192(NULL); else if (dh_secbits >= 152) |