/security/nss/lib/freebl/mpi/tests/mptest-4.c
http://github.com/zpao/v8monkey · C · 126 lines · 60 code · 25 blank · 41 comment · 2 complexity · e956cb655f37930898aee0dde026ea83 MD5 · raw file
- /*
- * Simple test driver for MPI library
- *
- * Test 4: Modular arithmetic tests
- *
- * ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * 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 the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
- /* $Id: mptest-4.c,v 1.3 2004/04/27 23:04:37 gerv%gerv.net Exp $ */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <ctype.h>
- #include <limits.h>
- #include "mpi.h"
- int main(int argc, char *argv[])
- {
- int ix;
- mp_int a, b, c, m;
- mp_digit r;
- if(argc < 4) {
- fprintf(stderr, "Usage: %s <a> <b> <m>\n", argv[0]);
- return 1;
- }
- printf("Test 4: Modular arithmetic\n\n");
- mp_init(&a);
- mp_init(&b);
- mp_init(&m);
- mp_read_radix(&a, argv[1], 10);
- mp_read_radix(&b, argv[2], 10);
- mp_read_radix(&m, argv[3], 10);
- printf("a = "); mp_print(&a, stdout); fputc('\n', stdout);
- printf("b = "); mp_print(&b, stdout); fputc('\n', stdout);
- printf("m = "); mp_print(&m, stdout); fputc('\n', stdout);
-
- mp_init(&c);
- printf("\nc = a (mod m)\n");
- mp_mod(&a, &m, &c);
- printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
- printf("\nc = b (mod m)\n");
- mp_mod(&b, &m, &c);
- printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
- printf("\nc = b (mod 1853)\n");
- mp_mod_d(&b, 1853, &r);
- printf("c = %04X\n", r);
- printf("\nc = (a + b) mod m\n");
- mp_addmod(&a, &b, &m, &c);
- printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
- printf("\nc = (a - b) mod m\n");
- mp_submod(&a, &b, &m, &c);
- printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
- printf("\nc = (a * b) mod m\n");
- mp_mulmod(&a, &b, &m, &c);
- printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
- printf("\nc = (a ** b) mod m\n");
- mp_exptmod(&a, &b, &m, &c);
- printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
- printf("\nIn-place modular squaring test:\n");
- for(ix = 0; ix < 5; ix++) {
- printf("a = (a * a) mod m a = ");
- mp_sqrmod(&a, &m, &a);
- mp_print(&a, stdout);
- fputc('\n', stdout);
- }
-
- mp_clear(&c);
- mp_clear(&m);
- mp_clear(&b);
- mp_clear(&a);
- return 0;
- }