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comparison src/misc/mpi/is_prime.c @ 191:1c15b283127b libtomcrypt-orig

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Import of libtomcrypt 1.02 with manual path rename rearrangement etc
author Matt Johnston <matt@ucc.asn.au>
date Fri, 06 May 2005 13:23:02 +0000
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children 39d5d58461d6
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143:5d99163f7e32 191:1c15b283127b
1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
2 *
3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner.
5 *
6 * The library is free for all purposes without any express
7 * guarantee it works.
8 *
9 * Tom St Denis, [email protected], http://libtomcrypt.org
10 */
11 #include "tomcrypt.h"
12
13 /**
14 @file is_prime.c
15 Determines if integer is prime for LTC, Tom St Denis
16 */
17
18 #ifdef MPI
19
20 /* figures out if a number is prime (MR test) */
21 int is_prime(mp_int *N, int *result)
22 {
23 int err;
24 LTC_ARGCHK(N != NULL);
25 LTC_ARGCHK(result != NULL);
26 if ((err = mp_prime_is_prime(N, mp_prime_rabin_miller_trials(mp_count_bits(N)), result)) != MP_OKAY) {
27 return mpi_to_ltc_error(err);
28 }
29 return CRYPT_OK;
30 }
31
32 #endif