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dsa-sha256-sign.c
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Niels Möller authored
dsa-sha1-verify.c, dsa-sha256-sign.c, and dsa-sha256-verify.c. * dsa.h: Updated and added dsa declarations. * dsa-sha256-verify.c (dsa_sha256_verify_digest): New file, new function. (dsa_sha256_verify): New function. * dsa-sha256-sign.c (dsa_sha256_sign_digest): New file, new function. (dsa_sha256_sign): New function. * dsa-sha1-verify.c (dsa_sha1_verify_digest): New file. Moved and renamed function, from dsa_verify_digest, rewrote to use _dsa_verify. (dsa_sha1_verify): Analogous change, renamed from dsa_verify. * dsa-sha1-sign.c (dsa_sha1_sign_digest): New file. Moved and renamed function, from dsa_sign_digest, rewrote to use _dsa_sign, and added return value. (dsa_sha1_sign): Analogous change, renamed from dsa_sign. * dsa-verify.c (_dsa_verify): New general verification function, for any hash. * dsa-sign.c (_dsa_sign): New general signing function, for any hash. Returns success code, like the rsa signture functions. Rev: nettle/ChangeLog:1.71 Rev: nettle/Makefile.in:1.22 Rev: nettle/dsa-sha1-sign.c:1.1 Rev: nettle/dsa-sha1-verify.c:1.1 Rev: nettle/dsa-sha256-sign.c:1.1 Rev: nettle/dsa-sha256-verify.c:1.1 Rev: nettle/dsa-sign.c:1.3 Rev: nettle/dsa-verify.c:1.3 Rev: nettle/dsa.h:1.4
Niels Möller authoreddsa-sha1-verify.c, dsa-sha256-sign.c, and dsa-sha256-verify.c. * dsa.h: Updated and added dsa declarations. * dsa-sha256-verify.c (dsa_sha256_verify_digest): New file, new function. (dsa_sha256_verify): New function. * dsa-sha256-sign.c (dsa_sha256_sign_digest): New file, new function. (dsa_sha256_sign): New function. * dsa-sha1-verify.c (dsa_sha1_verify_digest): New file. Moved and renamed function, from dsa_verify_digest, rewrote to use _dsa_verify. (dsa_sha1_verify): Analogous change, renamed from dsa_verify. * dsa-sha1-sign.c (dsa_sha1_sign_digest): New file. Moved and renamed function, from dsa_sign_digest, rewrote to use _dsa_sign, and added return value. (dsa_sha1_sign): Analogous change, renamed from dsa_sign. * dsa-verify.c (_dsa_verify): New general verification function, for any hash. * dsa-sign.c (_dsa_sign): New general signing function, for any hash. Returns success code, like the rsa signture functions. Rev: nettle/ChangeLog:1.71 Rev: nettle/Makefile.in:1.22 Rev: nettle/dsa-sha1-sign.c:1.1 Rev: nettle/dsa-sha1-verify.c:1.1 Rev: nettle/dsa-sha256-sign.c:1.1 Rev: nettle/dsa-sha256-verify.c:1.1 Rev: nettle/dsa-sign.c:1.3 Rev: nettle/dsa-verify.c:1.3 Rev: nettle/dsa.h:1.4
dsa-sha256-sign.c 1.70 KiB
/* dsa-sha256-sign.c
*
* The DSA publickey algorithm, using SHA-256 (FIPS186-3).
*/
/* nettle, low-level cryptographics library
*
* Copyright (C) 2010 Niels Mller
*
* 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 "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);
}