/*

* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

/**

 @file

 @internalTechnology

*/

#ifndef SYMMETRICCIPHERSTEPBASE_H

#define SYMMETRICCIPHERSTEPBASE_H

#include "cryptosymmetriccipherapi.h"

#include "keys.h"

#include "te_cryptospistepbase.h"

#include "filereader.h"

using namespace CryptoSpi;

class CSymmetricCipherStepBase : public CTe_CryptoSpiStepBase

	{

protected:

	void SetupCipherL(TBool aArc4Check, TBool aRc2Check, TVariantPtrC& aOperationMode, CSymmetricCipher*& aCipher, CKey*& aKey);

	HBufC8* ReadInPlaintextL();

	HBufC8* ReadInCiphertextL();

	HBufC8* ReadInIvL();

	TInt CtrModeCalcBlockSizeL(CSymmetricCipher& aCipher);

	HBufC8* CtrModeIncrementCounterL(TDesC8& aCounter);

	HBufC8* ReadInHexCiphertextL();

	HBufC8* ReadInHexPlaintextL();

	HBufC8* ReadInHexPlainTextL(TPtrC aFile);

	HBufC8* ReadInHexIvL();

	HBufC8* ConvertFromHexFormatToRawL(TDesC8& aInput);

private:

	HBufC8* ReadFileL(TPtrC aFile);

	};

#endif	//SYMMETRICCIPHERSTEPBASE_H