diff options
Diffstat (limited to 'crypto/bn/bn_mont.c')
| -rw-r--r-- | crypto/bn/bn_mont.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/crypto/bn/bn_mont.c b/crypto/bn/bn_mont.c index 1580e978ce..d4d817a74f 100644 --- a/crypto/bn/bn_mont.c +++ b/crypto/bn/bn_mont.c @@ -351,6 +351,9 @@ int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx) int ret = 0; BIGNUM *Ri, *R; + if (BN_is_zero(mod)) + return 0; + BN_CTX_start(ctx); if ((Ri = BN_CTX_get(ctx)) == NULL) goto err; |