diff options
author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2017-01-04 14:24:24 +0000 |
---|---|---|
committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2017-01-04 14:24:24 +0000 |
commit | dc1565216a5d20ae0d75872151523252309a1292 (patch) | |
tree | d57454ba9a40386552179eddf60d28bd1e8f3d54 /nss/lib/freebl/mpi/tests/mptest-4a.c | |
parent | 26c046fbc57d53136b4fb3b5e0d18298318125d4 (diff) | |
download | nss-dc1565216a5d20ae0d75872151523252309a1292.tar.gz |
nss-3.28.1nss-3.28.1
Diffstat (limited to 'nss/lib/freebl/mpi/tests/mptest-4a.c')
-rw-r--r-- | nss/lib/freebl/mpi/tests/mptest-4a.c | 154 |
1 files changed, 79 insertions, 75 deletions
diff --git a/nss/lib/freebl/mpi/tests/mptest-4a.c b/nss/lib/freebl/mpi/tests/mptest-4a.c index 46d4a4d..0c8e188 100644 --- a/nss/lib/freebl/mpi/tests/mptest-4a.c +++ b/nss/lib/freebl/mpi/tests/mptest-4a.c @@ -1,5 +1,5 @@ -/* - * mptest4a - modular exponentiation speed test +/* + * mptest4a - modular exponentiation speed 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 @@ -17,89 +17,93 @@ #include "mpprime.h" typedef struct { - unsigned int sec; - unsigned int usec; + unsigned int sec; + unsigned int usec; } instant_t; -instant_t now(void) +instant_t +now(void) { - struct timeval clk; - instant_t res; + struct timeval clk; + instant_t res; - res.sec = res.usec = 0; + res.sec = res.usec = 0; - if(gettimeofday(&clk, NULL) != 0) - return res; + if (gettimeofday(&clk, NULL) != 0) + return res; - res.sec = clk.tv_sec; - res.usec = clk.tv_usec; + res.sec = clk.tv_sec; + res.usec = clk.tv_usec; - return res; + return res; } extern mp_err s_mp_pad(); -int main(int argc, char *argv[]) +int +main(int argc, char *argv[]) { - int ix, num, prec = 8; - unsigned int d; - instant_t start, finish; - time_t seed; - mp_int a, m, c; - - seed = time(NULL); - - if(argc < 2) { - fprintf(stderr, "Usage: %s <num-tests> [<precision>]\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; - } - - printf("Test 3a: 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); - s_mp_pad(&a, prec); - s_mp_pad(&m, prec); - s_mp_pad(&c, prec); - - printf("Testing modular exponentiation ... \n"); - srand((unsigned int)seed); - - start = now(); - for(ix = 0; ix < num; ix++) { - mpp_random(&a); - mpp_random(&c); - mpp_random(&m); - mp_exptmod(&a, &c, &m, &c); - } - finish = now(); - - d = (finish.sec - start.sec) * 1000000; - d -= start.usec; d += finish.usec; - - printf("Total time elapsed: %u usec\n", d); - printf("Time per exponentiation: %u usec (%.3f sec)\n", - (d / num), (double)(d / num) / 1000000); - - mp_clear(&c); - mp_clear(&a); - mp_clear(&m); - - return 0; + int ix, num, prec = 8; + unsigned int d; + instant_t start, finish; + time_t seed; + mp_int a, m, c; + + seed = time(NULL); + + if (argc < 2) { + fprintf(stderr, "Usage: %s <num-tests> [<precision>]\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; + } + + printf("Test 3a: 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); + s_mp_pad(&a, prec); + s_mp_pad(&m, prec); + s_mp_pad(&c, prec); + + printf("Testing modular exponentiation ... \n"); + srand((unsigned int)seed); + + start = now(); + for (ix = 0; ix < num; ix++) { + mpp_random(&a); + mpp_random(&c); + mpp_random(&m); + mp_exptmod(&a, &c, &m, &c); + } + finish = now(); + + d = (finish.sec - start.sec) * 1000000; + d -= start.usec; + d += finish.usec; + + printf("Total time elapsed: %u usec\n", d); + printf("Time per exponentiation: %u usec (%.3f sec)\n", + (d / num), (double)(d / num) / 1000000); + + mp_clear(&c); + mp_clear(&a); + mp_clear(&m); + + return 0; } |