--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoplugins/cryptospiplugins/source/softwarecrypto/softwarehashbase.h	Fri Nov 06 13:21:00 2009 +0200
@@ -0,0 +1,130 @@
+/*
+* Copyright (c) 2006-2009 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: 
+* Software hash base definition
+*
+*/
+
+
+/**
+ @file
+ @internalComponent
+ @released
+*/
+
+#ifndef __CRYPTOAPI_SOFTWAREHASHBASE_H__
+#define __CRYPTOAPI_SOFTWAREHASHBASE_H__
+
+#include <cryptospi/hashplugin.h>
+#include "keys.h"
+
+namespace SoftwareCrypto
+	{
+	using namespace CryptoSpi;
+	/**
+	Interfaces for Software Hash
+	*/
+	class MSoftwareHash : public MHash
+		{
+	public:
+		/**
+		Restores the internal state of the message digest
+		to a previously stored state.
+		*/
+		virtual void RestoreState() = 0;
+
+		/**
+		Stores the internal state of the message digest.
+		*/
+		virtual void StoreState() = 0;
+		};
+			
+	/**
+	Proxy class Software Hash and Hmac implementation
+	*/
+	NONSHARABLE_CLASS(CSoftwareHash) : public MHash, public CBase
+		{
+	public:
+		//
+		//NewL & NewLC
+		//
+		static CSoftwareHash* NewL(TUid aAlgorithm, TUid aOperationMode, const CKey* aKey);
+		static CSoftwareHash* NewLC(TUid aAlgorithm, TUid aOperationMode, const CKey* aKey);
+		static CSoftwareHash* NewL(TUid aAlgorithm);
+
+		//
+		// Destructor
+		//
+		~CSoftwareHash();
+		//
+		//From MPlugin
+		//
+		void Reset();
+		void Close();		
+		void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);		
+		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);
+	
+	private:
+		//
+		//Constructor
+		// 
+		CSoftwareHash();
+		void ConstructL(TUid aAlgorithm, TUid aOperationMode, const CKey* aKey);
+		
+		//
+		//get the active implementation
+		//
+		MSoftwareHash* Impl();
+		
+	private:
+		/**
+		The Key for HMAC mode operation
+		*/
+		CKey* iKey;
+		
+		/**
+		The Uid for the operation mode
+		*/
+		TUid iOperationMode;
+		
+		/**
+		The hash implementation
+		*/
+		MSoftwareHash* iHashImpl;
+		
+		/**
+		The Hmac implementation
+		*/
+		MSoftwareHash* iHmacImpl;
+		};
+		
+	GLDEF_C inline TUint CMD_R(TUint a,TUint s)
+		{
+		return (a<<s) | (a>>(32-s));
+		}
+	}
+	
+
+#endif // __CRYPTOAPI_SOFTWAREHASHBASE_H__