diff options
| author | Dr. Stephen Henson <steve@openssl.org> | 2011-04-07 15:01:48 +0000 |
|---|---|---|
| committer | Dr. Stephen Henson <steve@openssl.org> | 2011-04-07 15:01:48 +0000 |
| commit | 31360957fb866264a82d0aa63a18a76740c32cb0 (patch) | |
| tree | 1a717ae14dc5c81b32579fc384851274fe2a9e26 /crypto/dsa/dsa_lib.c | |
| parent | d80399a3571e58a2c96da68c4fc6c95fb555902e (diff) | |
DH keys have an (until now) unused 'q' parameter. When creating
from DSA copy q across and if q present generate DH key in the
correct range.
Diffstat (limited to 'crypto/dsa/dsa_lib.c')
| -rw-r--r-- | crypto/dsa/dsa_lib.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/crypto/dsa/dsa_lib.c b/crypto/dsa/dsa_lib.c index e9b75902db..12f83ed848 100644 --- a/crypto/dsa/dsa_lib.c +++ b/crypto/dsa/dsa_lib.c @@ -276,7 +276,8 @@ void *DSA_get_ex_data(DSA *d, int idx) DH *DSA_dup_DH(const DSA *r) { /* DSA has p, q, g, optional pub_key, optional priv_key. - * DH has p, optional length, g, optional pub_key, optional priv_key. + * DH has p, optional length, g, optional pub_key, optional priv_key, + * optional q. */ DH *ret = NULL; @@ -290,7 +291,11 @@ DH *DSA_dup_DH(const DSA *r) if ((ret->p = BN_dup(r->p)) == NULL) goto err; if (r->q != NULL) + { ret->length = BN_num_bits(r->q); + if ((ret->q = BN_dup(r->q)) == NULL) + goto err; + } if (r->g != NULL) if ((ret->g = BN_dup(r->g)) == NULL) goto err; |