diff options
Diffstat (limited to 'security/nss/lib/freebl/mpi/utils/bbs_rand.c')
-rw-r--r-- | security/nss/lib/freebl/mpi/utils/bbs_rand.c | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/security/nss/lib/freebl/mpi/utils/bbs_rand.c b/security/nss/lib/freebl/mpi/utils/bbs_rand.c deleted file mode 100644 index fed2fe2e6..000000000 --- a/security/nss/lib/freebl/mpi/utils/bbs_rand.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Blum, Blum & Shub PRNG using the MPI library - * - * 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 "bbs_rand.h" - -#define SEED 1 -#define MODULUS 2 - -/* This modulus is the product of two randomly generated 512-bit - prime integers, each of which is congruent to 3 (mod 4). */ -static char *bbs_modulus = - "75A2A6E1D27393B86562B9CE7279A8403CB4258A637DAB5233465373E37837383EDC" - "332282B8575927BC4172CE8C147B4894050EE9D2BDEED355C121037270CA2570D127" - "7D2390CD1002263326635CC6B259148DE3A1A03201980A925E395E646A5E9164B0EC" - "28559EBA58C87447245ADD0651EDA507056A1129E3A3E16E903D64B437"; - -static int bbs_init = 0; /* flag set when library is initialized */ -static mp_int bbs_state; /* the current state of the generator */ - -/* Suggested size of random seed data */ -int bbs_seed_size = (sizeof(bbs_modulus) / 2); - -void -bbs_srand(unsigned char *data, int len) -{ - if ((bbs_init & SEED) == 0) { - mp_init(&bbs_state); - bbs_init |= SEED; - } - - mp_read_raw(&bbs_state, (char *)data, len); - -} /* end bbs_srand() */ - -unsigned int -bbs_rand(void) -{ - static mp_int modulus; - unsigned int result = 0, ix; - - if ((bbs_init & MODULUS) == 0) { - mp_init(&modulus); - mp_read_radix(&modulus, bbs_modulus, 16); - bbs_init |= MODULUS; - } - - for (ix = 0; ix < sizeof(unsigned int); ix++) { - mp_digit d; - - mp_sqrmod(&bbs_state, &modulus, &bbs_state); - d = DIGIT(&bbs_state, 0); - - result = (result << CHAR_BIT) | (d & UCHAR_MAX); - } - - return result; - -} /* end bbs_rand() */ - -/*------------------------------------------------------------------------*/ -/* HERE THERE BE DRAGONS */ |