From: ben <ben@cda61777-01e9-0310-a592-d414129be87e>
Date: Thu, 28 Apr 2005 08:24:46 +0000 (+0000)
Subject: In blowfish-ctr mode, increment the counter in the correct order.  Thanks to
X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/commitdiff_plain/be47bb502541fc654f52e1988dd832bbecfd8c7b?hp=6236e66e28beb855512418d28b0ba5303f394794

In blowfish-ctr mode, increment the counter in the correct order.  Thanks to
der Mouse for spotting the same error in my 3des-ctr implementation.


git-svn-id: svn://svn.tartarus.org/sgt/putty@5700 cda61777-01e9-0310-a592-d414129be87e
---

diff --git a/sshblowf.c b/sshblowf.c
index 0ca81eba..0f00a77b 100644
--- a/sshblowf.c
+++ b/sshblowf.c
@@ -406,8 +406,8 @@ static void blowfish_msb_sdctr(unsigned char *blk, int len,
 	PUT_32BIT_MSB_FIRST(blk, tmp ^ b[0]);
 	tmp = GET_32BIT_MSB_FIRST(blk + 4);
 	PUT_32BIT_MSB_FIRST(blk + 4, tmp ^ b[1]);
-	if ((iv0 = (iv0 + 1) & 0xffffffff) == 0)
-	    iv1 = (iv1 + 1) & 0xffffffff;
+	if ((iv1 = (iv1 + 1) & 0xffffffff) == 0)
+	    iv0 = (iv0 + 1) & 0xffffffff;
 	blk += 8;
 	len -= 8;
     }