diff options
| author | Andy Polyakov <appro@openssl.org> | 2014-07-02 19:35:50 +0200 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2014-07-02 21:21:02 +0200 |
| commit | e43233643337b93f8f6865f7e8bea97cb8d67f5b (patch) | |
| tree | 23dfe9e5f90bfd04f5745654fa9ee9803f95192e /crypto/bn | |
| parent | f3b0e0215c86ab419e7834b2e9c34b2b8191934e (diff) | |
bn_exp.c: fix x86_64-specific crash with one-word modulus.
PR: #3397
(cherry picked from commit eca441b2b4d33d2a18d163ef9b4b3aff14251c73)
Diffstat (limited to 'crypto/bn')
| -rw-r--r-- | crypto/bn/bn_exp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/bn/bn_exp.c b/crypto/bn/bn_exp.c index 2abf6fd678..5e7eb3373f 100644 --- a/crypto/bn/bn_exp.c +++ b/crypto/bn/bn_exp.c @@ -680,7 +680,7 @@ int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p, /* Dedicated window==4 case improves 512-bit RSA sign by ~15%, but as * 512-bit RSA is hardly relevant, we omit it to spare size... */ - if (window==5) + if (window==5 && top>1) { void bn_mul_mont_gather5(BN_ULONG *rp,const BN_ULONG *ap, const void *table,const BN_ULONG *np, |