diff options
Diffstat (limited to 'security/nss/lib/freebl/mpi/tests/mptest-5.c')
-rw-r--r-- | security/nss/lib/freebl/mpi/tests/mptest-5.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/mpi/tests/mptest-5.c b/security/nss/lib/freebl/mpi/tests/mptest-5.c new file mode 100644 index 000000000..dff3ed470 --- /dev/null +++ b/security/nss/lib/freebl/mpi/tests/mptest-5.c @@ -0,0 +1,85 @@ +/* + * Simple test driver for MPI library + * + * Test 5: Other number theoretic functions + * + * 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 "mpi.h" + +int +main(int argc, char *argv[]) +{ + mp_int a, b, c, x, y; + + if (argc < 3) { + fprintf(stderr, "Usage: %s <a> <b>\n", argv[0]); + return 1; + } + + printf("Test 5: Number theoretic functions\n\n"); + + mp_init(&a); + mp_init(&b); + + mp_read_radix(&a, argv[1], 10); + mp_read_radix(&b, argv[2], 10); + + printf("a = "); + mp_print(&a, stdout); + fputc('\n', stdout); + printf("b = "); + mp_print(&b, stdout); + fputc('\n', stdout); + + mp_init(&c); + printf("\nc = (a, b)\n"); + + mp_gcd(&a, &b, &c); + printf("Euclid: c = "); + mp_print(&c, stdout); + fputc('\n', stdout); + /* + mp_bgcd(&a, &b, &c); + printf("Binary: c = "); mp_print(&c, stdout); fputc('\n', stdout); + */ + mp_init(&x); + mp_init(&y); + printf("\nc = (a, b) = ax + by\n"); + + mp_xgcd(&a, &b, &c, &x, &y); + printf("c = "); + mp_print(&c, stdout); + fputc('\n', stdout); + printf("x = "); + mp_print(&x, stdout); + fputc('\n', stdout); + printf("y = "); + mp_print(&y, stdout); + fputc('\n', stdout); + + printf("\nc = a^-1 (mod b)\n"); + if (mp_invmod(&a, &b, &c) == MP_UNDEF) { + printf("a has no inverse mod b\n"); + } else { + printf("c = "); + mp_print(&c, stdout); + fputc('\n', stdout); + } + + mp_clear(&y); + mp_clear(&x); + mp_clear(&c); + mp_clear(&b); + mp_clear(&a); + + return 0; +} |