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comparison: security/nss/lib/freebl/mpi/tests/mptest-4.c
security/nss/lib/freebl/mpi/tests/mptest-4.c
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| -1:000000000000 | 0:3e0251f32ea9 |
|---|---|
| 1 /* | |
| 2 * Simple test driver for MPI library | |
| 3 * | |
| 4 * Test 4: Modular arithmetic tests | |
| 5 * | |
| 6 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 7 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 8 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 9 | |
| 10 #include <stdio.h> | |
| 11 #include <stdlib.h> | |
| 12 #include <string.h> | |
| 13 #include <ctype.h> | |
| 14 #include <limits.h> | |
| 15 | |
| 16 #include "mpi.h" | |
| 17 | |
| 18 int main(int argc, char *argv[]) | |
| 19 { | |
| 20 int ix; | |
| 21 mp_int a, b, c, m; | |
| 22 mp_digit r; | |
| 23 | |
| 24 if(argc < 4) { | |
| 25 fprintf(stderr, "Usage: %s <a> <b> <m>\n", argv[0]); | |
| 26 return 1; | |
| 27 } | |
| 28 | |
| 29 printf("Test 4: Modular arithmetic\n\n"); | |
| 30 | |
| 31 mp_init(&a); | |
| 32 mp_init(&b); | |
| 33 mp_init(&m); | |
| 34 | |
| 35 mp_read_radix(&a, argv[1], 10); | |
| 36 mp_read_radix(&b, argv[2], 10); | |
| 37 mp_read_radix(&m, argv[3], 10); | |
| 38 printf("a = "); mp_print(&a, stdout); fputc('\n', stdout); | |
| 39 printf("b = "); mp_print(&b, stdout); fputc('\n', stdout); | |
| 40 printf("m = "); mp_print(&m, stdout); fputc('\n', stdout); | |
| 41 | |
| 42 mp_init(&c); | |
| 43 printf("\nc = a (mod m)\n"); | |
| 44 | |
| 45 mp_mod(&a, &m, &c); | |
| 46 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 47 | |
| 48 printf("\nc = b (mod m)\n"); | |
| 49 | |
| 50 mp_mod(&b, &m, &c); | |
| 51 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 52 | |
| 53 printf("\nc = b (mod 1853)\n"); | |
| 54 | |
| 55 mp_mod_d(&b, 1853, &r); | |
| 56 printf("c = %04X\n", r); | |
| 57 | |
| 58 printf("\nc = (a + b) mod m\n"); | |
| 59 | |
| 60 mp_addmod(&a, &b, &m, &c); | |
| 61 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 62 | |
| 63 printf("\nc = (a - b) mod m\n"); | |
| 64 | |
| 65 mp_submod(&a, &b, &m, &c); | |
| 66 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 67 | |
| 68 printf("\nc = (a * b) mod m\n"); | |
| 69 | |
| 70 mp_mulmod(&a, &b, &m, &c); | |
| 71 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 72 | |
| 73 printf("\nc = (a ** b) mod m\n"); | |
| 74 | |
| 75 mp_exptmod(&a, &b, &m, &c); | |
| 76 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 77 | |
| 78 printf("\nIn-place modular squaring test:\n"); | |
| 79 for(ix = 0; ix < 5; ix++) { | |
| 80 printf("a = (a * a) mod m a = "); | |
| 81 mp_sqrmod(&a, &m, &a); | |
| 82 mp_print(&a, stdout); | |
| 83 fputc('\n', stdout); | |
| 84 } | |
| 85 | |
| 86 | |
| 87 mp_clear(&c); | |
| 88 mp_clear(&m); | |
| 89 mp_clear(&b); | |
| 90 mp_clear(&a); | |
| 91 | |
| 92 return 0; | |
| 93 } |
