1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/* pkcs1-rsa-digest.c
*
*/
/* nettle, low-level cryptographics library
*
* Copyright (C) 2001, 2003, 2012 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 "pkcs1.h"
#include "bignum.h"
#include "gmp-glue.h"
#include "nettle-internal.h"
int
pkcs1_rsa_digest_encode(mpz_t m, size_t key_size,
size_t di_length, const uint8_t *digest_info)
{
TMP_GMP_DECL(em, uint8_t);
TMP_GMP_ALLOC(em, key_size);
if (_pkcs1_signature_prefix(key_size, em,
di_length, digest_info, 0))
{
nettle_mpz_set_str_256_u(m, key_size, em);
TMP_GMP_FREE(em);
return 1;
}
else
{
TMP_GMP_FREE(em);
return 0;
}
}
|
