From e58080b7d20df6e1a6d2ae0f1cd118a1d80c28ee Mon Sep 17 00:00:00 2001
From: joernchen of Phenoelit <joernchen@phenoelit.de>
Date: Sat, 18 Jan 2014 20:39:56 +0100
Subject: [PATCH] Bugfix: -Y should not work with -6 or -8

---
 ykchalresp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ykchalresp.c b/ykchalresp.c
index 370291f..ff81840 100644
--- a/ykchalresp.c
+++ b/ykchalresp.c
@@ -250,7 +250,7 @@ static int challenge_response(YK_KEY *yk, int slot,
 	/* HMAC responses are 160 bits, Yubico 128 */
 	expect_bytes = (hmac == true) ? 20 : 16;
 
-	if(digits){
+	if(digits && hmac){
 		offset   =  response[19] & 0xf ;
 		bin_code = (response[offset]  & 0x7f) << 24
 		| (response[offset+1] & 0xff) << 16
-- 
2.39.5