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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /security/nss/lib/freebl/mpi/tests/mptest-3a.c | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'security/nss/lib/freebl/mpi/tests/mptest-3a.c')
-rw-r--r-- | security/nss/lib/freebl/mpi/tests/mptest-3a.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/mpi/tests/mptest-3a.c b/security/nss/lib/freebl/mpi/tests/mptest-3a.c new file mode 100644 index 000000000..c6cea7046 --- /dev/null +++ b/security/nss/lib/freebl/mpi/tests/mptest-3a.c @@ -0,0 +1,123 @@ +/* + * Simple test driver for MPI library + * + * Test 3a: Multiplication vs. squaring 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 <ctype.h> +#include <limits.h> + +#include <time.h> + +#include "mpi.h" +#include "mpprime.h" + +int +main(int argc, char *argv[]) +{ + int ix, num, prec = 8; + double d1, d2; + clock_t start, finish; + time_t seed; + mp_int a, c, d; + + 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; + else + prec = (prec + (DIGIT_BIT - 1)) / DIGIT_BIT; + } + + printf("Test 3a: Multiplication vs squaring timing test\n" + "Precision: %d digits (%u bits)\n" + "# of tests: %d\n\n", + prec, prec * DIGIT_BIT, num); + + mp_init_size(&a, prec); + + mp_init(&c); + mp_init(&d); + + printf("Verifying accuracy ... \n"); + srand((unsigned int)seed); + for (ix = 0; ix < num; ix++) { + mpp_random_size(&a, prec); + mp_mul(&a, &a, &c); + mp_sqr(&a, &d); + + if (mp_cmp(&c, &d) != 0) { + printf("Error! Results not accurate:\n"); + printf("a = "); + mp_print(&a, stdout); + fputc('\n', stdout); + printf("c = "); + mp_print(&c, stdout); + fputc('\n', stdout); + printf("d = "); + mp_print(&d, stdout); + fputc('\n', stdout); + mp_sub(&c, &d, &d); + printf("dif "); + mp_print(&d, stdout); + fputc('\n', stdout); + mp_clear(&c); + mp_clear(&d); + mp_clear(&a); + return 1; + } + } + printf("Accuracy is confirmed for the %d test samples\n", num); + mp_clear(&d); + + printf("Testing squaring ... \n"); + srand((unsigned int)seed); + start = clock(); + for (ix = 0; ix < num; ix++) { + mpp_random_size(&a, prec); + mp_sqr(&a, &c); + } + finish = clock(); + + d2 = (double)(finish - start) / CLOCKS_PER_SEC; + + printf("Testing multiplication ... \n"); + srand((unsigned int)seed); + start = clock(); + for (ix = 0; ix < num; ix++) { + mpp_random(&a); + mp_mul(&a, &a, &c); + } + finish = clock(); + + d1 = (double)(finish - start) / CLOCKS_PER_SEC; + + printf("Multiplication time: %.3f sec (%.3f each)\n", d1, d1 / num); + printf("Squaring time: %.3f sec (%.3f each)\n", d2, d2 / num); + printf("Improvement: %.2f%%\n", (1.0 - (d2 / d1)) * 100.0); + + mp_clear(&c); + mp_clear(&a); + + return 0; +} |