mptest-4.c
上传用户:lyxiangda
上传日期:2007-01-12
资源大小:3042k
文件大小:3k
- /*
- * Simple test driver for MPI library
- *
- * Test 4: Modular arithmetic tests
- *
- * 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: mptest-4.c,v 1.1 2000/07/14 00:44:43 nelsonb%netscape.com 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 arithmeticnn");
- 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 = %04Xn", r);
- printf("nc = (a + b) mod mn");
- mp_addmod(&a, &b, &m, &c);
- printf("c = "); mp_print(&c, stdout); fputc('n', stdout);
- printf("nc = (a - b) mod mn");
- mp_submod(&a, &b, &m, &c);
- printf("c = "); mp_print(&c, stdout); fputc('n', stdout);
- printf("nc = (a * b) mod mn");
- mp_mulmod(&a, &b, &m, &c);
- printf("c = "); mp_print(&c, stdout); fputc('n', stdout);
- printf("nc = (a ** b) mod mn");
- 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;
- }