~ubuntu-branches/ubuntu/trusty/nettle/trusty

/* dsa-sha256-sign.c

 *

 * The DSA publickey algorithm, using SHA-256 (FIPS186-3).

 */

/* nettle, low-level cryptographics library

 *

 * Copyright (C) 2010 Niels Möller

 *  

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA 02111-1301, USA.

 */

#if HAVE_CONFIG_H

# include "config.h"

#endif

#include "dsa.h"

int

dsa_sha256_sign_digest(const struct dsa_public_key *pub,

		       const struct dsa_private_key *key,

		       void *random_ctx, nettle_random_func *random,

		       const uint8_t *digest,

		       struct dsa_signature *signature)

{

  return _dsa_sign(pub, key, random_ctx, random,

		   SHA256_DIGEST_SIZE, digest, signature);

}

int

dsa_sha256_sign(const struct dsa_public_key *pub,

		const struct dsa_private_key *key,

		void *random_ctx, nettle_random_func *random,

		struct sha256_ctx *hash,

		struct dsa_signature *signature)

{

  uint8_t digest[SHA256_DIGEST_SIZE];

  sha256_digest(hash, sizeof(digest), digest);

  return _dsa_sign(pub, key, random_ctx, random,

		   sizeof(digest), digest, signature);

}