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/* dsa.h
*
* The DSA publickey algorithm.
*/
/* nettle, low-level cryptographics library
*
* Copyright (C) 2002 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., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#if WITH_PUBLIC_KEY
#include "dsa.h"
#include "bignum.h"
void
dsa_public_key_init(struct dsa_public_key *key)
{
mpz_init(key->p);
mpz_init(key->q);
mpz_init(key->g);
mpz_init(key->y);
}
void
dsa_public_key_clear(struct dsa_public_key *key)
{
mpz_clear(key->p);
mpz_clear(key->q);
mpz_clear(key->g);
mpz_clear(key->y);
}
void
dsa_private_key_init(struct dsa_private_key *key)
{
mpz_init(key->x);
}
void
dsa_private_key_clear(struct dsa_private_key *key)
{
mpz_clear(key->x);
}
void
dsa_signature_init(struct dsa_signature *signature)
{
mpz_init(signature->r);
mpz_init(signature->s);
}
void
dsa_signature_clear(struct dsa_signature *signature)
{
mpz_clear(signature->r);
mpz_clear(signature->s);
}
void
_dsa_hash(mpz_t x, struct sha1_ctx *hash)
{
uint8_t digest[SHA1_DIGEST_SIZE];
sha1_digest(hash, sizeof(digest), digest);
nettle_mpz_set_str_256_u(x, sizeof(digest), digest);
}
#endif /* WITH_PUBLIC_KEY */
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