security/nss/lib/freebl/mpi/tests/mptest-3.c@6474c204b198 (annotated)
security/nss/lib/freebl/mpi/tests/mptest-3.c
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Simple test driver for MPI library |
| michael@0 | 3 | * |
| michael@0 | 4 | * Test 3: Multiplication, division, and exponentiation test |
| michael@0 | 5 | * |
| michael@0 | 6 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 7 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 8 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 9 | |
| michael@0 | 10 | #include <stdio.h> |
| michael@0 | 11 | #include <stdlib.h> |
| michael@0 | 12 | #include <string.h> |
| michael@0 | 13 | #include <ctype.h> |
| michael@0 | 14 | #include <limits.h> |
| michael@0 | 15 | |
| michael@0 | 16 | #include <time.h> |
| michael@0 | 17 | |
| michael@0 | 18 | #include "mpi.h" |
| michael@0 | 19 | |
| michael@0 | 20 | #define SQRT 1 /* define nonzero to get square-root test */ |
| michael@0 | 21 | #define EXPT 0 /* define nonzero to get exponentiate test */ |
| michael@0 | 22 | |
| michael@0 | 23 | int main(int argc, char *argv[]) |
| michael@0 | 24 | { |
| michael@0 | 25 | int ix; |
| michael@0 | 26 | mp_int a, b, c, d; |
| michael@0 | 27 | mp_digit r; |
| michael@0 | 28 | mp_err res; |
| michael@0 | 29 | |
| michael@0 | 30 | if(argc < 3) { |
| michael@0 | 31 | fprintf(stderr, "Usage: %s <a> <b>\n", argv[0]); |
| michael@0 | 32 | return 1; |
| michael@0 | 33 | } |
| michael@0 | 34 | |
| michael@0 | 35 | printf("Test 3: Multiplication and division\n\n"); |
| michael@0 | 36 | srand(time(NULL)); |
| michael@0 | 37 | |
| michael@0 | 38 | mp_init(&a); |
| michael@0 | 39 | mp_init(&b); |
| michael@0 | 40 | |
| michael@0 | 41 | mp_read_variable_radix(&a, argv[1], 10); |
| michael@0 | 42 | mp_read_variable_radix(&b, argv[2], 10); |
| michael@0 | 43 | printf("a = "); mp_print(&a, stdout); fputc('\n', stdout); |
| michael@0 | 44 | printf("b = "); mp_print(&b, stdout); fputc('\n', stdout); |
| michael@0 | 45 | |
| michael@0 | 46 | mp_init(&c); |
| michael@0 | 47 | printf("\nc = a * b\n"); |
| michael@0 | 48 | |
| michael@0 | 49 | mp_mul(&a, &b, &c); |
| michael@0 | 50 | printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); |
| michael@0 | 51 | |
| michael@0 | 52 | printf("\nc = b * 32523\n"); |
| michael@0 | 53 | |
| michael@0 | 54 | mp_mul_d(&b, 32523, &c); |
| michael@0 | 55 | printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); |
| michael@0 | 56 | |
| michael@0 | 57 | mp_init(&d); |
| michael@0 | 58 | printf("\nc = a / b, d = a mod b\n"); |
| michael@0 | 59 | |
| michael@0 | 60 | mp_div(&a, &b, &c, &d); |
| michael@0 | 61 | printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); |
| michael@0 | 62 | printf("d = "); mp_print(&d, stdout); fputc('\n', stdout); |
| michael@0 | 63 | |
| michael@0 | 64 | ix = rand() % 256; |
| michael@0 | 65 | printf("\nc = a / %d, r = a mod %d\n", ix, ix); |
| michael@0 | 66 | mp_div_d(&a, (mp_digit)ix, &c, &r); |
| michael@0 | 67 | printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); |
| michael@0 | 68 | printf("r = %04X\n", r); |
| michael@0 | 69 | |
| michael@0 | 70 | #if EXPT |
| michael@0 | 71 | printf("\nc = a ** b\n"); |
| michael@0 | 72 | mp_expt(&a, &b, &c); |
| michael@0 | 73 | printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); |
| michael@0 | 74 | #endif |
| michael@0 | 75 | |
| michael@0 | 76 | ix = rand() % 256; |
| michael@0 | 77 | printf("\nc = 2^%d\n", ix); |
| michael@0 | 78 | mp_2expt(&c, ix); |
| michael@0 | 79 | printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); |
| michael@0 | 80 | |
| michael@0 | 81 | #if SQRT |
| michael@0 | 82 | printf("\nc = sqrt(a)\n"); |
| michael@0 | 83 | if((res = mp_sqrt(&a, &c)) != MP_OKAY) { |
| michael@0 | 84 | printf("mp_sqrt: %s\n", mp_strerror(res)); |
| michael@0 | 85 | } else { |
| michael@0 | 86 | printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); |
| michael@0 | 87 | mp_sqr(&c, &c); |
| michael@0 | 88 | printf("c^2 = "); mp_print(&c, stdout); fputc('\n', stdout); |
| michael@0 | 89 | } |
| michael@0 | 90 | #endif |
| michael@0 | 91 | |
| michael@0 | 92 | mp_clear(&d); |
| michael@0 | 93 | mp_clear(&c); |
| michael@0 | 94 | mp_clear(&b); |
| michael@0 | 95 | mp_clear(&a); |
| michael@0 | 96 | |
| michael@0 | 97 | return 0; |
| michael@0 | 98 | } |
