From: Martin Willi <martin@revosec.ch>
Date: Fri, 27 Mar 2015 15:07:53 +0000 (+0100)
Subject: cmac: Reset state before doing set_key()
X-Git-Tag: 5.3.0~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc1876bc9a39513d1bb4dce437b9b01ac263a05c;p=thirdparty%2Fstrongswan.git

cmac: Reset state before doing set_key()
---

diff --git a/src/libstrongswan/plugins/cmac/cmac.c b/src/libstrongswan/plugins/cmac/cmac.c
index c8cb7fbf27..4f222ff4e1 100644
--- a/src/libstrongswan/plugins/cmac/cmac.c
+++ b/src/libstrongswan/plugins/cmac/cmac.c
@@ -247,6 +247,9 @@ METHOD(mac_t, set_key, bool,
 {
 	chunk_t resized, iv, l;
 
+	memset(this->t, 0, this->b);
+	this->remaining_bytes = 0;
+
 	/* we support variable keys as defined in RFC 4615 */
 	if (key.len == this->b)
 	{