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79 lines
1.7 KiB
C
79 lines
1.7 KiB
C
/* rsa-md5-sign.c
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Signatures using RSA and MD5.
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Copyright (C) 2001, 2003 Niels Möller
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This file is part of GNU Nettle.
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GNU Nettle is free software: you can redistribute it and/or
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modify it under the terms of either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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or both in parallel, as here.
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GNU Nettle is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see http://www.gnu.org/licenses/.
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*/
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#if HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <assert.h>
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#include "rsa.h"
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#include "rsa-internal.h"
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#include "bignum.h"
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#include "pkcs1.h"
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int
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rsa_md5_sign(const struct rsa_private_key *key,
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struct md5_ctx *hash,
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mpz_t s)
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{
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if (pkcs1_rsa_md5_encode(s, key->size, hash))
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{
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rsa_compute_root(key, s, s);
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return 1;
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}
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else
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{
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mpz_set_ui(s, 0);
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return 0;
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}
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}
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int
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rsa_md5_sign_digest(const struct rsa_private_key *key,
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const uint8_t *digest,
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mpz_t s)
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{
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if (pkcs1_rsa_md5_encode_digest(s, key->size, digest))
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{
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rsa_compute_root(key, s, s);
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return 1;
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}
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else
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{
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mpz_set_ui(s, 0);
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return 0;
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}
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}
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