diff options
Diffstat (limited to 'security/nss/lib/freebl/mpi/utils/metime.c')
-rw-r--r-- | security/nss/lib/freebl/mpi/utils/metime.c | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/security/nss/lib/freebl/mpi/utils/metime.c b/security/nss/lib/freebl/mpi/utils/metime.c deleted file mode 100644 index 122875ee0..000000000 --- a/security/nss/lib/freebl/mpi/utils/metime.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * metime.c - * - * Modular exponentiation timing test - * - * This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <limits.h> -#include <time.h> - -#include "mpi.h" -#include "mpprime.h" - -double clk_to_sec(clock_t start, clock_t stop); - -int -main(int argc, char *argv[]) -{ - int ix, num, prec = 8; - unsigned int seed; - clock_t start, stop; - double sec; - - mp_int a, m, c; - - if (PR_GetEnvSecure("SEED") != NULL) - seed = abs(atoi(PR_GetEnvSecure("SEED"))); - else - seed = (unsigned int)time(NULL); - - if (argc < 2) { - fprintf(stderr, "Usage: %s <num-tests> [<nbits>]\n", argv[0]); - return 1; - } - - if ((num = atoi(argv[1])) < 0) - num = -num; - - if (!num) { - fprintf(stderr, "%s: must perform at least 1 test\n", argv[0]); - return 1; - } - - if (argc > 2) { - if ((prec = atoi(argv[2])) <= 0) - prec = 8; - else - prec = (prec + (DIGIT_BIT - 1)) / DIGIT_BIT; - } - - printf("Modular exponentiation timing test\n" - "Precision: %d digits (%d bits)\n" - "# of tests: %d\n\n", - prec, prec * DIGIT_BIT, num); - - mp_init_size(&a, prec); - mp_init_size(&m, prec); - mp_init_size(&c, prec); - - srand(seed); - - start = clock(); - for (ix = 0; ix < num; ix++) { - - mpp_random_size(&a, prec); - mpp_random_size(&c, prec); - mpp_random_size(&m, prec); - /* set msb and lsb of m */ - DIGIT(&m, 0) |= 1; - DIGIT(&m, USED(&m) - 1) |= (mp_digit)1 << (DIGIT_BIT - 1); - if (mp_cmp(&a, &m) > 0) - mp_sub(&a, &m, &a); - - mp_exptmod(&a, &c, &m, &c); - } - stop = clock(); - - sec = clk_to_sec(start, stop); - - printf("Total: %.3f seconds\n", sec); - printf("Individual: %.3f seconds\n", sec / num); - - mp_clear(&c); - mp_clear(&a); - mp_clear(&m); - - return 0; -} - -double -clk_to_sec(clock_t start, clock_t stop) -{ - return (double)(stop - start) / CLOCKS_PER_SEC; -} - -/*------------------------------------------------------------------------*/ -/* HERE THERE BE DRAGONS */ |