--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtp/srtpstack/src/srtpcipher_null.cpp	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,63 @@
+/*
+* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:    Provides class for NULL encryption/decryption.
+*
+*/
+
+
+
+
+#include "srtpcipher_null.h"
+
+// ---------------------------------------------------------------------------
+// CSRTPCipherNULL::NewL
+// ---------------------------------------------------------------------------
+//
+CSRTPCipherNULL* CSRTPCipherNULL::NewL()
+    {
+    CSRTPCipherNULL* self = new( ELeave ) CSRTPCipherNULL();
+    return self;    
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPCipherNULL::TransformL
+// ---------------------------------------------------------------------------
+//
+HBufC8* CSRTPCipherNULL::TransformL(const TDesC8& /*aKey*/, 
+                                const TDesC8& /*aIV*/, 
+                                const TDesC8& aSrc )
+    {    
+    HBufC8* result = HBufC8::NewMaxL(aSrc.Length());
+
+    //do nothing, but just copy the plain/decrypted text to destination
+    *result = aSrc;
+    return result;
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPCipherNULL::~CSRTPCipherNULL
+// ---------------------------------------------------------------------------
+//
+CSRTPCipherNULL::~CSRTPCipherNULL()
+    {    
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPCipherNULL::CSRTPCipherNULL
+// ---------------------------------------------------------------------------
+//
+CSRTPCipherNULL::CSRTPCipherNULL()
+    {    
+        
+    }