/*

* 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: 

* crypto base api interface

*

*/

/**

 @file

 @publishedAll

 @released

*/

#ifndef __CRYPTOAPI_BASEAPI_H__

#define __CRYPTOAPI_BASEAPI_H__

#include <e32base.h>

#include <cryptospi/plugincharacteristics.h>

namespace CryptoSpi

	{

	class MPlugin;

	class MHash;

	class MAsyncHash;

	class CCryptoParams;

	class CExtendedCharacteristics;

	NONSHARABLE_CLASS(CCryptoBase) : public CBase

		{

	public:

		/**

		Retrieves the plugin's common characteristics

		@param aPluginCharacteristics The plugin characteristics value retrieved

		@leave ...	Any of the crypto error codes defined in 

  					cryptospi_errs.h or any of the system-wide error codes.

		*/

		IMPORT_C void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);

		/**

		Retrieves the plugin's extended characteristics

		@return The extended plugin characteristics, on the heap.

		This should be deleted by the caller when finished with.

		@leave ...	Any of the crypto error codes defined in 

  					cryptospi_errs.h or any of the system-wide error codes.

		*/	

		IMPORT_C const CExtendedCharacteristics* GetExtendedCharacteristicsL();

        /**

        Resets the state of the crypto object to uninitialised. All prior

        state is lost.

        */

        IMPORT_C void Reset();

	protected:

		/**

		 * @internalComponent

		 * 

		 * Constructor

		 **/		

		CCryptoBase(MPlugin* aPlugin, TInt aLibHandle);

		/**

		Destructor

		*/

		virtual ~CCryptoBase();

	protected:

		/**

		The plugin implementation

		*/

		MPlugin* iPlugin;	

		/**

		The current plugin DLL loaded

		*/

		TInt iLibHandle;

		};

	}

#endif //__CRYPTOAPI_BASEAPI_H__