test_mont was exercising 100-bit multiplication modulus X*I-bit, where

[openssl.git] / crypto / bn / bn_recp.c

diff --git a/crypto/bn/bn_recp.c b/crypto/bn/bn_recp.c
index e1919e3ce68586a863603bc5a57a09c90022ec08..80539c5e2c570d9ab19555864312e0201999ce39 100644 (file)
--- a/crypto/bn/bn_recp.c
+++ b/crypto/bn/bn_recp.c
@@ -158,6 +158,7 @@ int BN_div_recp(BIGNUM *dv, BIGNUM *rem, BIGNUM *m, BN_RECP_CTX *recp,
         *
         */
        i=BN_num_bits(m);
+       if (i%2) i--;
 
        j=recp->num_bits*2;
        if (j > i)