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: * Software md4 implementation
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: #ifndef __CRYPTOAPI_SOFTWAREMD4IMPL_H__
sl@0: #define __CRYPTOAPI_SOFTWAREMD4IMPL_H__
sl@0: 
sl@0: #include "softwarehashbase.h"
sl@0: 
sl@0: namespace SoftwareCrypto
sl@0: 	{
sl@0: 	using namespace CryptoSpi;
sl@0: 	
sl@0: 	const TInt KMD4BlockSize = 16;
sl@0: 	const TInt KMD4HashSize = 16;	
sl@0: 	
sl@0: 	NONSHARABLE_CLASS(CMD4Impl) : public CBase, public MSoftwareHash
sl@0: 		{		
sl@0: 	public:
sl@0: 		//NewL & NewLC	
sl@0: 		static CMD4Impl* NewL();
sl@0: 		static CMD4Impl* NewLC();
sl@0: 		
sl@0: 		//From MPlugin
sl@0: 		void Reset();
sl@0: 		void Close();		
sl@0: 		void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);		
sl@0: 		static CExtendedCharacteristics* CreateExtendedCharacteristicsL();
sl@0: 		const CExtendedCharacteristics* GetExtendedCharacteristicsL();
sl@0: 		TAny* GetExtension(TUid aExtensionId);
sl@0: 		
sl@0: 		//From MHash
sl@0: 	    TPtrC8 Hash(const TDesC8& aMessage);
sl@0: 	    void Update(const TDesC8& aMessage);
sl@0: 		TPtrC8 Final(const TDesC8& aMessage);
sl@0: 		MHash* ReplicateL();		
sl@0: 		MHash* CopyL();
sl@0: 		void SetKeyL(const CKey& aKey);
sl@0: 		void SetOperationModeL(TUid aOperationMode);		
sl@0: 		
sl@0: 		//From MSoftwareHash
sl@0: 		void RestoreState();
sl@0: 		void StoreState();
sl@0: 		
sl@0: 	private:
sl@0: 		//Constructors
sl@0: 		CMD4Impl();
sl@0: 		CMD4Impl(const CMD4Impl& aCMD4Impl);
sl@0: 		
sl@0: 		//Destructor
sl@0: 		~CMD4Impl();
sl@0: 		
sl@0: 		TUid ImplementationUid();
sl@0: 		
sl@0: 		void DoUpdate(const TUint8* aData,TUint aLength);
sl@0: 		void DoFinal(void);
sl@0: 		void Block();
sl@0: 	
sl@0: 	private:
sl@0: 		TBuf8<KMD4HashSize> iHash;
sl@0: 
sl@0: 		TUint iA;
sl@0: 		TUint iB;
sl@0: 		TUint iC;
sl@0: 		TUint iD;
sl@0: 		TUint iNl;
sl@0: 		TUint iNh;
sl@0: 		TUint iData[KMD4BlockSize];
sl@0: 
sl@0: 		TUint iACopy;
sl@0: 		TUint iBCopy;
sl@0: 		TUint iCCopy;
sl@0: 		TUint iDCopy;
sl@0: 		TUint iNlCopy;
sl@0: 		TUint iNhCopy;
sl@0: 		TUint iDataCopy[KMD4BlockSize];
sl@0: 		
sl@0: 		};
sl@0: 	}
sl@0: 
sl@0: #endif //  __CRYPTOAPI_SOFTWAREMD4IMPL_H__
sl@0: