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/*
* Simple test driver for MPI library
*
* Test 8: Probabilistic primality tester
*
* 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 <ctype.h>
#include <limits.h>
#include <time.h>
#define MP_IOFUNC 1
#include "mpi.h"
#include "mpprime.h"
int
main(int argc, char *argv[])
{
int ix;
mp_digit num;
mp_int a;
srand(time(NULL));
if (argc < 2) {
fprintf(stderr, "Usage: %s <a>\n", argv[0]);
return 1;
}
printf("Test 8: Probabilistic primality testing\n\n");
mp_init(&a);
mp_read_radix(&a, argv[1], 10);
printf("a = ");
mp_print(&a, stdout);
fputc('\n', stdout);
printf("\nChecking for divisibility by small primes ... \n");
num = 170;
if (mpp_divis_primes(&a, &num) == MP_YES) {
printf("it is not prime\n");
goto CLEANUP;
}
printf("Passed that test (not divisible by any small primes).\n");
for (ix = 0; ix < 10; ix++) {
printf("\nPerforming Rabin-Miller test, iteration %d\n", ix + 1);
if (mpp_pprime(&a, 5) == MP_NO) {
printf("it is not prime\n");
goto CLEANUP;
}
}
printf("All tests passed; a is probably prime\n");
CLEANUP:
mp_clear(&a);
return 0;
}
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