/*

* 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_SOFTWARESHA2IMPL_H_

#define __CRYPTOAPI_SOFTWARESHA2IMPL_H_

#include "softwarehashbase.h"

namespace SoftwareCrypto

	{

	using namespace CryptoSpi;

	class MSHA2Impl;

	NONSHARABLE_CLASS(CSHA2Impl) : public CBase, public MSoftwareHash

		{

	public:

		//NewL & NewLC	

		static CSHA2Impl* NewL(TInt32 aAlgorithmId);

		static CSHA2Impl* NewLC(TInt32 aAlgorithmId);

		//From MPlugin

		void Reset();

		void Close();		

		void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);		

		static CExtendedCharacteristics* CreateExtendedCharacteristicsL();

		const CExtendedCharacteristics* GetExtendedCharacteristicsL();

		TAny* GetExtension(TUid aExtensionId);

		//From MHash

		TPtrC8 Hash(const TDesC8& aMessage);

		void Update(const TDesC8& aMessage);

		TPtrC8 Final(const TDesC8& aMessage);

		MHash* ReplicateL();		

		MHash* CopyL();

		void SetKeyL(const CKey& aKey);

		void SetOperationModeL(TUid aOperationMode);		

		//From MSoftwareHash

		void RestoreState();

		void StoreState();

	private:

		//Constructors

		void ConstructL(TInt32 aAlgorithmId);

		void ConstructL(const CSHA2Impl& aSHA512Impl);

		//Destructor

		~CSHA2Impl();

		TUid ImplementationUid();

	private:

		MSHA2Impl*	iImplementation;

		const TAny*	iInitValues;

		TUid		iImplementationUid;

		TUint		iHashSize;

		};

	}

#endif //__CRYPTOAPI_SOFTWARESHA2IMPL_H_