/*

 * 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;

 		TUint64 iNhCopy;	

 		TUint iDataCopy[KSHA256BlockSize];

 		TUint iNl;

 		TUint64 iNh;

 		};

 	}

 #endif // __CRYPTOAPI_SOFTWARESHA224AND256IMPL_H_