/*

* 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_SOFTWARESHA384AND512IMPL_H_

#define __CRYPTOAPI_SOFTWARESHA384AND512IMPL_H_

#include "softwarehashbase.h"

#include "shacommon.h"

namespace SoftwareCrypto

	{

	using namespace CryptoSpi;

	const TInt KSHA512BlockSize	= 128;

	const TInt KSHA384HashSize	= 48;

	const TInt KSHA512HashSize	= 64;

	NONSHARABLE_CLASS(CSHA384And512Impl) : public CBase, public MSHA2Impl

		{	

	public:

		//NewL	

		static CSHA384And512Impl* NewL(TInt aHashSize = KSHA512HashSize);

		CSHA384And512Impl(const CSHA384And512Impl& aSHA512Impl);

		//From MSHAImpl

		virtual void Reset(const TAny* aValueArr);

		virtual const TDesC8& Final(void);

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

		virtual void StoreState();

		virtual void RestoreState();

	private:

		//Constructors

		CSHA384And512Impl(TInt aHashSize);

	private:

		// Private member functions

		/**

		 * @param aLength - Length of message added in bytes.

		 */ 

		inline void AddLength(const TUint64 aLength);

		inline void CopyWordToHash(TUint64 aVal, TUint aIndex);

		void Block();

		void PadMessage();

	private:

		TBuf8<KSHA512HashSize> iHash;

		TUint64 iA;

		TUint64 iB;

		TUint64 iC;

		TUint64 iD;

		TUint64 iE;

		TUint64 iF;

		TUint64 iG;

		TUint64 iH;

		TUint64 iData[KSHA512BlockSize];

		TUint64 iACopy;

		TUint64 iBCopy;

		TUint64 iCCopy;

		TUint64 iDCopy;

		TUint64 iECopy;

		TUint64 iFCopy;

		TUint64 iGCopy;

		TUint64 iHCopy;

		TUint64 iNlCopy;

		TUint64 iNhCopy;

		TUint	iBlockIndexCopy;

		TUint64 iDataCopy[KSHA512BlockSize];

		TUint64 iNl; // Lower word of Message Length

		TUint64 iNh; // Higher word of Message Length

		TUint iBlockIndex; // Message Length in the current block

		};

	}

#endif // __CRYPTOAPI_SOFTWARESHA384AND512IMPL_H_