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/*
* Simple test driver for MPI library
*
* Test 8: Probabilistic primality tester
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the MPI Arbitrary Precision Integer Arithmetic
* library.
*
* The Initial Developer of the Original Code is Michael J. Fromberger.
* Portions created by Michael J. Fromberger are
* Copyright (C) 1998, 1999, 2000 Michael J. Fromberger.
* All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the GPL.
*
* $Id$
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <limits.h>
#include <time.h>
#define MP_IOFUNC
#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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