diff options
Diffstat (limited to 'nss/lib/freebl/mpi/utils/bbs_rand.c')
-rw-r--r-- | nss/lib/freebl/mpi/utils/bbs_rand.c | 64 |
1 files changed, 33 insertions, 31 deletions
diff --git a/nss/lib/freebl/mpi/utils/bbs_rand.c b/nss/lib/freebl/mpi/utils/bbs_rand.c index c905b0f..fed2fe2 100644 --- a/nss/lib/freebl/mpi/utils/bbs_rand.c +++ b/nss/lib/freebl/mpi/utils/bbs_rand.c @@ -7,55 +7,57 @@ #include "bbs_rand.h" -#define SEED 1 -#define MODULUS 2 +#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 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 */ +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); +int bbs_seed_size = (sizeof(bbs_modulus) / 2); -void bbs_srand(unsigned char *data, int len) +void +bbs_srand(unsigned char *data, int len) { - if((bbs_init & SEED) == 0) { - mp_init(&bbs_state); - bbs_init |= SEED; - } + if ((bbs_init & SEED) == 0) { + mp_init(&bbs_state); + bbs_init |= SEED; + } - mp_read_raw(&bbs_state, (char *)data, len); + mp_read_raw(&bbs_state, (char *)data, len); } /* end bbs_srand() */ -unsigned int bbs_rand(void) +unsigned int +bbs_rand(void) { - static mp_int modulus; - unsigned int result = 0, ix; + 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; - } + 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; + for (ix = 0; ix < sizeof(unsigned int); ix++) { + mp_digit d; - mp_sqrmod(&bbs_state, &modulus, &bbs_state); - d = DIGIT(&bbs_state, 0); + mp_sqrmod(&bbs_state, &modulus, &bbs_state); + d = DIGIT(&bbs_state, 0); - result = (result << CHAR_BIT) | (d & UCHAR_MAX); - } + result = (result << CHAR_BIT) | (d & UCHAR_MAX); + } - return result; + return result; } /* end bbs_rand() */ |