/*

* 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 __CRYPTOAPI_SOFTWARESHA224AND256IMPL_H_

#define __CRYPTOAPI_SOFTWARESHA224AND256IMPL_H_

#include "softwarehashbase.h"

#include "shacommon.h"

namespace SoftwareCrypto

	{

	using namespace CryptoSpi;

	const TInt KSHA256BlockSize	= 64;

	const TInt KSHA224HashSize	= 28;

	const TInt KSHA256HashSize	= 32;

	NONSHARABLE_CLASS(CSHA224And256Impl) : public CBase, public MSHA2Impl

		{	

	public:

		//NewL	

		static CSHA224And256Impl* NewL();

		CSHA224And256Impl(const CSHA224And256Impl& aSHA256Impl);

		// 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

		CSHA224And256Impl();

		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 // __CRYPTOAPI_SOFTWARESHA224AND256IMPL_H_