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PR: 2540

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Submitted by: emmanuel.azencot@bull.net
Reviewed by: steve

Prevent infinite loop in BN_GF2m_mod_inv().
This commit is contained in:
Dr. Stephen Henson 2011-06-22 15:23:20 +00:00
parent 102bcbce8d
commit 22152d6885
1 changed files with 1 additions and 0 deletions
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crypto/bn/bn_gf2m.c
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@ -607,6 +607,7 @@ int BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)
{
while (!BN_is_odd(u))
{
if (BN_is_zero(u)) goto err;
if (!BN_rshift1(u, u)) goto err;
if (BN_is_odd(b))
{