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/* dsa-sha256-verify.c
*
* The DSA publickey algorithm, using SHA-256 (FIPS186-3).
*/
/* nettle, low-level cryptographics library
*
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*
* The nettle library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* The nettle library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the nettle library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include "dsa.h"
int
dsa_sha256_verify_digest(const struct dsa_public_key *key,
const uint8_t *digest,
const struct dsa_signature *signature)
{
return _dsa_verify(key, SHA256_DIGEST_SIZE, digest, signature);
}
int
dsa_sha256_verify(const struct dsa_public_key *key,
struct sha256_ctx *hash,
const struct dsa_signature *signature)
{
uint8_t digest[SHA256_DIGEST_SIZE];
sha256_digest(hash, sizeof(digest), digest);
return _dsa_verify(key, sizeof(digest), digest, signature);
}