diff options
Diffstat (limited to 'src/gen/seed.c')
| -rw-r--r-- | src/gen/seed.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/gen/seed.c b/src/gen/seed.c index 71b6658..628dad5 100644 --- a/src/gen/seed.c +++ b/src/gen/seed.c @@ -123,9 +123,15 @@ static void seed_hash(seed_t *seed) { } static void seed_W(seed_t *seed, const config_t *cfg) { - GEN t = utoi(cfg->bits - 1); + GEN t = utoi(cfg->bits); GEN s = floorr(rdivii(subis(t, 1), stoi(160), DEFAULTPREC)); - GEN h = subis(t, 160); + GEN h = subii(t, mulis(s, 160)); + GEN hash = binascii_btoi(seed->hash20, 20, ENDIAN_BIG); + GEN mask = subis(int2n(itos(h)), 1); + // TODO: what if I get zeros at the beginning? 0123 == 123 for PARI t_INT + // I should just convert to a t_VECSMALL of bits from the seed->hash and do everything with that. + // That's alot of custom code to handle bit strings. + GEN c0 = ibitand(hash, mask); } GENERATOR(seed_gen_random) { |