diff options
Diffstat (limited to 'security/nss/lib/freebl/ecl/tests/ec_naft.c')
-rw-r--r-- | security/nss/lib/freebl/ecl/tests/ec_naft.c | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/security/nss/lib/freebl/ecl/tests/ec_naft.c b/security/nss/lib/freebl/ecl/tests/ec_naft.c deleted file mode 100644 index 61ef15c36..000000000 --- a/security/nss/lib/freebl/ecl/tests/ec_naft.c +++ /dev/null @@ -1,121 +0,0 @@ -/* 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 "mpi.h" -#include "mplogic.h" -#include "ecl.h" -#include "ecp.h" -#include "ecl-priv.h" - -#include <sys/types.h> -#include <stdio.h> -#include <time.h> -#include <sys/time.h> -#include <sys/resource.h> - -/* Returns 2^e as an integer. This is meant to be used for small powers of - * two. */ -int ec_twoTo(int e); - -/* Number of bits of scalar to test */ -#define BITSIZE 160 - -/* Time k repetitions of operation op. */ -#define M_TimeOperation(op, k) \ - { \ - double dStart, dNow, dUserTime; \ - struct rusage ru; \ - int i; \ - getrusage(RUSAGE_SELF, &ru); \ - dStart = (double)ru.ru_utime.tv_sec + (double)ru.ru_utime.tv_usec * 0.000001; \ - for (i = 0; i < k; i++) { \ - { \ - op; \ - } \ - }; \ - getrusage(RUSAGE_SELF, &ru); \ - dNow = (double)ru.ru_utime.tv_sec + (double)ru.ru_utime.tv_usec * 0.000001; \ - dUserTime = dNow - dStart; \ - if (dUserTime) \ - printf(" %-45s\n k: %6i, t: %6.2f sec\n", #op, k, dUserTime); \ - } - -/* Tests wNAF computation. Non-adjacent-form is discussed in the paper: D. - * Hankerson, J. Hernandez and A. Menezes, "Software implementation of - * elliptic curve cryptography over binary fields", Proc. CHES 2000. */ - -mp_err -main(void) -{ - signed char naf[BITSIZE + 1]; - ECGroup *group = NULL; - mp_int k; - mp_int *scalar; - int i, count; - int res; - int w = 5; - char s[1000]; - - /* Get a 160 bit scalar to compute wNAF from */ - group = ECGroup_fromName(ECCurve_SECG_PRIME_160R1); - scalar = &group->genx; - - /* Compute wNAF representation of scalar */ - ec_compute_wNAF(naf, BITSIZE, scalar, w); - - /* Verify correctness of representation */ - mp_init(&k); /* init k to 0 */ - - for (i = BITSIZE; i >= 0; i--) { - mp_add(&k, &k, &k); - /* digits in mp_???_d are unsigned */ - if (naf[i] >= 0) { - mp_add_d(&k, naf[i], &k); - } else { - mp_sub_d(&k, -naf[i], &k); - } - } - - if (mp_cmp(&k, scalar) != 0) { - printf("Error: incorrect NAF value.\n"); - MP_CHECKOK(mp_toradix(&k, s, 16)); - printf("NAF value %s\n", s); - MP_CHECKOK(mp_toradix(scalar, s, 16)); - printf("original value %s\n", s); - goto CLEANUP; - } - - /* Verify digits of representation are valid */ - for (i = 0; i <= BITSIZE; i++) { - if (naf[i] % 2 == 0 && naf[i] != 0) { - printf("Error: Even non-zero digit found.\n"); - goto CLEANUP; - } - if (naf[i] < -(ec_twoTo(w - 1)) || naf[i] >= ec_twoTo(w - 1)) { - printf("Error: Magnitude of naf digit too large.\n"); - goto CLEANUP; - } - } - - /* Verify sparsity of representation */ - count = w - 1; - for (i = 0; i <= BITSIZE; i++) { - if (naf[i] != 0) { - if (count < w - 1) { - printf("Error: Sparsity failed.\n"); - goto CLEANUP; - } - count = 0; - } else - count++; - } - - /* Check timing */ - M_TimeOperation(ec_compute_wNAF(naf, BITSIZE, scalar, w), 10000); - - printf("Test passed.\n"); -CLEANUP: - ECGroup_free(group); - return MP_OKAY; -} |