sl@0: /*
sl@0: * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalComponent
sl@0:  @released
sl@0: */
sl@0: 
sl@0: 
sl@0: #ifndef __CRYPTOAPI_SOFTWARESHA224AND256IMPL_H_
sl@0: #define __CRYPTOAPI_SOFTWARESHA224AND256IMPL_H_
sl@0: 
sl@0: 
sl@0: #include "softwarehashbase.h"
sl@0: #include "shacommon.h"
sl@0: 
sl@0: namespace SoftwareCrypto
sl@0: 	{
sl@0: 	using namespace CryptoSpi;
sl@0: 	
sl@0: 	const TInt KSHA256BlockSize	= 64;
sl@0: 	const TInt KSHA224HashSize	= 28;
sl@0: 	const TInt KSHA256HashSize	= 32;
sl@0: 			
sl@0: 	NONSHARABLE_CLASS(CSHA224And256Impl) : public CBase, public MSHA2Impl
sl@0: 		{	
sl@0: 	public:
sl@0: 		//NewL	
sl@0: 		static CSHA224And256Impl* NewL();
sl@0: 		CSHA224And256Impl(const CSHA224And256Impl& aSHA256Impl);
sl@0: 		
sl@0: 		// Functions from MSHA2Impl
sl@0: 		virtual void RestoreState();
sl@0: 		virtual void StoreState();
sl@0: 		virtual void Reset(const TAny*);
sl@0: 		virtual void Update(const TUint8* aData,TUint aLength);
sl@0: 		virtual const TDes8& Final(void);
sl@0: 	
sl@0: 	private:
sl@0: 		//Constructors
sl@0: 		CSHA224And256Impl();
sl@0: 		inline void AddLength(const TUint aLength);
sl@0: 		inline void CopyWordToHash(TUint aVal, TUint aIndex);
sl@0: 		void Block();
sl@0: 		void PadMessage();
sl@0: 
sl@0: 	private:
sl@0: 		TBuf8<KSHA256HashSize> iHash;
sl@0: 		TUint iA;
sl@0: 		TUint iB;
sl@0: 		TUint iC;
sl@0: 		TUint iD;
sl@0: 		TUint iE;
sl@0: 		TUint iF;
sl@0: 		TUint iG;
sl@0: 		TUint iH;
sl@0: 		TUint iData[KSHA256BlockSize];
sl@0: 
sl@0: 		TUint iACopy;
sl@0: 		TUint iBCopy;
sl@0: 		TUint iCCopy;
sl@0: 		TUint iDCopy;
sl@0: 		TUint iECopy;
sl@0: 		TUint iFCopy;
sl@0: 		TUint iGCopy;
sl@0: 		TUint iHCopy;
sl@0: 		TUint iNlCopy;
sl@0: 		TUint64 iNhCopy;	
sl@0: 		TUint iDataCopy[KSHA256BlockSize];
sl@0: 		
sl@0: 		TUint iNl;
sl@0: 		TUint64 iNh;
sl@0: 		};
sl@0: 	}
sl@0: 
sl@0: #endif // __CRYPTOAPI_SOFTWARESHA224AND256IMPL_H_