From 6c3fca2b10ac52bbc296be6c919599c7ef92a712 Mon Sep 17 00:00:00 2001 From: Andy Polyakov Date: Sun, 8 Jul 2007 18:55:51 +0000 Subject: [PATCH] bn_mul_recursive doesn't handle all cases correctly, which results in BN_mul failures at certain key-length mixes [from HEAD]. PR: 1427 --- crypto/bn/bn_mul.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/crypto/bn/bn_mul.c b/crypto/bn/bn_mul.c index aec1eafc65..312b467645 100644 --- a/crypto/bn/bn_mul.c +++ b/crypto/bn/bn_mul.c @@ -655,16 +655,16 @@ void bn_mul_part_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n, for (;;) { i/=2; - if (i < tna && i < tnb) + if (i <= tna && tna == tnb) { - bn_mul_part_recursive(&(r[n2]), + bn_mul_recursive(&(r[n2]), &(a[n]),&(b[n]), i,tna-i,tnb-i,p); break; } - else if (i <= tna && i <= tnb) + else if (i < tna || i < tnb) { - bn_mul_recursive(&(r[n2]), + bn_mul_part_recursive(&(r[n2]), &(a[n]),&(b[n]), i,tna-i,tnb-i,p); break; -- 2.25.1