--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtp/srtpstack/inc/srtpcipher_null.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,65 @@
+/*
+* 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.
+*
+*/
+
+
+
+
+#ifndef __SRTP_CIPHER_NULL_H__
+#define __SRTP_CIPHER_NULL_H__
+
+#include "msrtpcipher.h"
+
+//FORWARD declarations
+class CSrtpAESCTRCrypto;
+
+class CSRTPCipherNULL: public CBase, public MSRTPCipher
+    {
+    public:
+        /**
+        * Constructor.
+        * @leave KErrNone if success, system-wide error code otherwise
+        */
+	    static CSRTPCipherNULL* NewL();
+
+        /**
+        * Destructor.
+        */
+	    ~CSRTPCipherNULL();
+
+        /**
+        * Inherited from MSRTPCipher.
+        * This function is called by SRTP for NULL encryption/decryption
+        * Just copies the input text to output text.
+        * @param aKey  Input key.
+        * @param aIV  Integer Value (IV).
+        * @param aSrc source data which will be transformed.
+	    * Returns HBufC8* decrypted/encrypted source        
+        */
+        HBufC8* TransformL(const TDesC8& aKey, 
+                                const TDesC8& aIV, 
+                                const TDesC8& aSrc );
+                                
+    private:         // Data        
+                 
+    private:         // methods
+        /**
+        * Default constructor.
+        */
+        CSRTPCipherNULL();  
+    };
+
+#endif // __SRTP_CIPHER_NULL_H__