diff options
| author | Andy Polyakov <appro@openssl.org> | 2012-03-30 17:41:00 +0000 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2012-03-30 17:41:00 +0000 |
| commit | 265863c6a45273ad175f59b160aba8f5f3475458 (patch) | |
| tree | 850a92914d0709dae71894bb30922f67a161769b /crypto/bn | |
| parent | 2fee1e06661e26518fab28b1745f5556c2b80f67 (diff) | |
bn/bn_gf2m.c: make new BN_GF2m_mod_inv work with BN_DEBUG_RAND [from HEAD].
Diffstat (limited to 'crypto/bn')
| -rw-r--r-- | crypto/bn/bn_gf2m.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/crypto/bn/bn_gf2m.c b/crypto/bn/bn_gf2m.c index 08ab9fd227..8a4dc20ad9 100644 --- a/crypto/bn/bn_gf2m.c +++ b/crypto/bn/bn_gf2m.c @@ -628,8 +628,11 @@ int BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx) } if (ubits==vbits) { - bn_correct_top(u); - ubits = BN_num_bits(u); + BN_ULONG ul; + int utop = (ubits-1)/BN_BITS2; + + while ((ul=udp[utop])==0 && utop) utop--; + ubits = utop*BN_BITS2 + BN_num_bits_word(ul); } } bn_correct_top(b); |