diff options
Diffstat (limited to 'security/nss/lib/freebl/mpi/utils/isprime.c')
-rw-r--r-- | security/nss/lib/freebl/mpi/utils/isprime.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/security/nss/lib/freebl/mpi/utils/isprime.c b/security/nss/lib/freebl/mpi/utils/isprime.c deleted file mode 100644 index d2d86957e..000000000 --- a/security/nss/lib/freebl/mpi/utils/isprime.c +++ /dev/null @@ -1,89 +0,0 @@ -/* - * isprime.c - * - * Probabilistic primality tester command-line tool - * - * This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "mpi.h" -#include "mpprime.h" - -#define RM_TESTS 15 /* how many iterations of Rabin-Miller? */ -#define MINIMUM 1024 /* don't bother us with a < this */ - -int g_tests = RM_TESTS; -char *g_prog = NULL; - -int -main(int argc, char *argv[]) -{ - mp_int a; - mp_digit np = prime_tab_size; /* from mpprime.h */ - int res = 0; - - g_prog = argv[0]; - - if (argc < 2) { - fprintf(stderr, "Usage: %s <a>, where <a> is a decimal integer\n" - "Use '0x' prefix for a hexadecimal value\n", - g_prog); - return 1; - } - - /* Read number of tests from environment, if present */ - { - char *tmp; - - if ((tmp = PR_GetEnvSecure("RM_TESTS")) != NULL) { - if ((g_tests = atoi(tmp)) <= 0) - g_tests = RM_TESTS; - } - } - - mp_init(&a); - if (argv[1][0] == '0' && argv[1][1] == 'x') - mp_read_radix(&a, argv[1] + 2, 16); - else - mp_read_radix(&a, argv[1], 10); - - if (mp_cmp_d(&a, MINIMUM) <= 0) { - fprintf(stderr, "%s: please use a value greater than %d\n", - g_prog, MINIMUM); - mp_clear(&a); - return 1; - } - - /* Test for divisibility by small primes */ - if (mpp_divis_primes(&a, &np) != MP_NO) { - printf("Not prime (divisible by small prime %d)\n", np); - res = 2; - goto CLEANUP; - } - - /* Test with Fermat's test, using 2 as a witness */ - if (mpp_fermat(&a, 2) != MP_YES) { - printf("Not prime (failed Fermat test)\n"); - res = 2; - goto CLEANUP; - } - - /* Test with Rabin-Miller probabilistic test */ - if (mpp_pprime(&a, g_tests) == MP_NO) { - printf("Not prime (failed pseudoprime test)\n"); - res = 2; - goto CLEANUP; - } - - printf("Probably prime, 1 in 4^%d chance of false positive\n", g_tests); - -CLEANUP: - mp_clear(&a); - - return res; -} |