/*

* 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

 @internalComponent

 @released

*/

#ifndef __CRYPTO_SHA224AND256_H_

#define __CRYPTO_SHA224AND256_H_

#include "shacommon.h"

const TInt KSHA256BlockSize	= 64;

const TInt KSHA224HashSize	= 28;

const TInt KSHA256HashSize	= 32;

NONSHARABLE_CLASS(CSHA224And256) : public CBase, public MSHA2Impl

	{	

public:

	//NewL	

	static CSHA224And256* NewL();

	CSHA224And256(const CSHA224And256& aSHAImpl);

	// Functions from MSHA2Impl

	virtual void RestoreState();

	virtual void StoreState();

	virtual void Reset(const TAny*);

	virtual void Update(const TUint8* aData,TUint aLength);

	virtual const TDes8& Final(void);

private:

	//Constructors

	CSHA224And256();

	inline void AddLength(const TUint aLength);

	inline void CopyWordToHash(TUint aVal, TUint aIndex);

	void Block();

	void PadMessage();

private:

	TBuf8<KSHA256HashSize> iHash;

	TUint iA;

	TUint iB;

	TUint iC;

	TUint iD;

	TUint iE;

	TUint iF;

	TUint iG;

	TUint iH;

	TUint iData[KSHA256BlockSize];

	TUint iACopy;

	TUint iBCopy;

	TUint iCCopy;

	TUint iDCopy;

	TUint iECopy;

	TUint iFCopy;

	TUint iGCopy;

	TUint iHCopy;

	TUint iNlCopy;

	TUint iNhCopy;	

	TUint iDataCopy[KSHA256BlockSize];

	TUint iNl;

	TUint64 iNh;

	};

#endif // __CRYPTO_SHA224AND256_H_