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| author | Dr. Stephen Henson <steve@openssl.org> | 2015-12-13 17:28:40 +0000 |
|---|---|---|
| committer | Dr. Stephen Henson <steve@openssl.org> | 2015-12-14 23:06:14 +0000 |
| commit | 2986ecdc08016de978f1134315623778420b51e5 (patch) | |
| tree | d553d2766381f7bd4b04b38fb7f472379d6e903c /crypto/dsa | |
| parent | d911097d7c93e4cfeab624b34d73fe51da158b69 (diff) | |
| download | openssl-2986ecdc08016de978f1134315623778420b51e5.zip openssl-2986ecdc08016de978f1134315623778420b51e5.tar.gz openssl-2986ecdc08016de978f1134315623778420b51e5.tar.bz2 | |
Extend EVP_PKEY_copy_parameters()
Make EVP_PKEY_copy_parameters() work if the destination has no type
(e.g. if obtained from EVP_PKEY_new()) or the underlying key is NULL.
This is useful where we want to copy the parameters from an existing
key to a new key.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Diffstat (limited to 'crypto/dsa')
| -rw-r--r-- | crypto/dsa/dsa_ameth.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/crypto/dsa/dsa_ameth.c b/crypto/dsa/dsa_ameth.c index d1d32c6..92976bc3 100644 --- a/crypto/dsa/dsa_ameth.c +++ b/crypto/dsa/dsa_ameth.c @@ -364,6 +364,12 @@ static int dsa_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) { BIGNUM *a; + if (to->pkey.dsa == NULL) { + to->pkey.dsa = DSA_new(); + if (to->pkey.dsa == NULL) + return 0; + } + if ((a = BN_dup(from->pkey.dsa->p)) == NULL) return 0; BN_free(to->pkey.dsa->p); |