From ea82d26b756f9c3f959c214b3c350740c9b0fdc6 Mon Sep 17 00:00:00 2001
From: csoler <csoler@users.sourceforge.net>
Date: Thu, 9 Feb 2017 23:35:59 +0100
Subject: [PATCH] fixed signature verification bug for versionned messages

---
 libretroshare/src/gxs/gxssecurity.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libretroshare/src/gxs/gxssecurity.cc b/libretroshare/src/gxs/gxssecurity.cc
index 20ddc1462..8a5bb5851 100644
--- a/libretroshare/src/gxs/gxssecurity.cc
+++ b/libretroshare/src/gxs/gxssecurity.cc
@@ -436,8 +436,12 @@ bool GxsSecurity::validateNxsMsg(const RsNxsMsg& msg, const RsTlvKeySignature& s
             msgMeta.signSet.TlvClear();
 
             RsGxsMessageId msgId = msgMeta.mMsgId, origMsgId = msgMeta.mOrigMsgId;
-            msgMeta.mOrigMsgId.clear();
+
+            if(msgMeta.mOrigMsgId == msgMeta.mMsgId)	// message is not versionned, then the signature was made with mOrigMsgId==NULL
+				msgMeta.mOrigMsgId.clear();
+
             msgMeta.mMsgId.clear();
+
 	    int signOk = 0 ;
 
 	{