nettle  3.7.3
About: Nettle is a low-level cryptographic library.
  Fossies Dox: nettle-3.7.3.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

rsa-encrypt.c
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1 /* rsa-encrypt.c
2 
3  The RSA publickey algorithm. PKCS#1 encryption.
4 
5  Copyright (C) 2001 Niels Möller
6 
7  This file is part of GNU Nettle.
8 
9  GNU Nettle is free software: you can redistribute it and/or
10  modify it under the terms of either:
11 
12  * the GNU Lesser General Public License as published by the Free
13  Software Foundation; either version 3 of the License, or (at your
14  option) any later version.
15 
16  or
17 
18  * the GNU General Public License as published by the Free
19  Software Foundation; either version 2 of the License, or (at your
20  option) any later version.
21 
22  or both in parallel, as here.
23 
24  GNU Nettle is distributed in the hope that it will be useful,
25  but WITHOUT ANY WARRANTY; without even the implied warranty of
26  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27  General Public License for more details.
28 
29  You should have received copies of the GNU General Public License and
30  the GNU Lesser General Public License along with this program. If
31  not, see http://www.gnu.org/licenses/.
32 */
33 
34 #if HAVE_CONFIG_H
35 # include "config.h"
36 #endif
37 
38 #include "rsa.h"
39 #include "rsa-internal.h"
40 
41 #include "pkcs1.h"
42 
43 int
44 rsa_encrypt(const struct rsa_public_key *key,
45  /* For padding */
46  void *random_ctx, nettle_random_func *random,
47  size_t length, const uint8_t *message,
48  mpz_t gibberish)
49 {
50  if (pkcs1_encrypt (key->size, random_ctx, random,
51  length, message, gibberish))
52  {
53  mpz_powm(gibberish, gibberish, key->e, key->n);
54  return 1;
55  }
56  else
57  return 0;
58 }
void mpz_powm(mpz_t r, const mpz_t b, const mpz_t e, const mpz_t m)
Definition: mini-gmp.c:3068
__mpz_struct mpz_t[1]
Definition: mini-gmp.h:77
void nettle_random_func(void *ctx, size_t length, uint8_t *dst)
Definition: nettle-types.h:75
#define pkcs1_encrypt
Definition: pkcs1.h:54
#define rsa_encrypt
Definition: rsa.h:88
size_t size
Definition: rsa.h:118
mpz_t e
Definition: rsa.h:124
mpz_t n
Definition: rsa.h:121