/*+
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* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).+
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* All rights reserved.+
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* This component and the accompanying materials are made available+
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* under the terms of the License "Eclipse Public License v1.0"+
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* which accompanies this distribution, and is available+
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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*+
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* Initial Contributors:+
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* Nokia Corporation - initial contribution.+
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*+
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* Contributors:+
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*+
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* Description: +
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* ** IMPORTANT ** PublishedPartner API's in this file are published to 3rd party developers via the +
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* Symbian website. Changes to these API's should be treated as PublishedAll API changes and the Security TA should be consulted.+
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* CNullCipher class implementation+
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*+
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*/+
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+
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+
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+
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+
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/**+
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 @file +
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 @internalAll+
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*/+
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 +
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#ifndef __NULLCIPHER_H__+
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#define __NULLCIPHER_H__+
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+
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#include "streamcipher.h"+
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+
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/**+
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* Stream cipher that does no encryption or decryption, but simply returns the+
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* data given to it.+
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* From CBlockTransformation+
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*+
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* @publishedPartner+
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* @released +
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*/+
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class CNullCipher : public CStreamCipher+
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{+
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public:	+
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	/**+
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	 * Creates a new CNullCipher object.+
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	 * +
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	 * @return	A pointer to a new CNullCipher object+
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	 */+
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	IMPORT_C static CNullCipher* NewL(void);+
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+
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	/**+
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	 * Creates a new CNullCipher object.+
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	 * +
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	 * The returned pointer is put onto the cleanup stack.+
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	 * +
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	 * @return	A pointer to a new CNullCipher object+
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	 */+
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	IMPORT_C static CNullCipher* NewLC(void);+
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	virtual void Reset(void);+
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	virtual TInt KeySize(void) const;+
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protected:+
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	virtual void DoProcess(TDes8& aData);+
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	/**+
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	 * @internalAll+
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	 */+
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	CNullCipher();+
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};+
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+
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#endif	//	__NULLCIPHER_H__+
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