/*

* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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: 

*

*/

#ifndef MCMSModule_H

#define MCMSModule_H

//  INCLUDES

#include <e32std.h>

// FORWARD DECLARATIONS

class CASN1EncBase;

// CLASS DECLARATION

/**

*  Base class for all CMS modules

*

*  @lib cms.lib

*  @since 2.8

*/

class MCMSModule

    {

    public: // New functions

        /**

        * To be implemented in derived classes, used to

        * encrypt specified module to descriptor

        * Will leave with KErrArgument if current instance of module is invalid

        * @since 2.8

        * @param aResult Allocates and sets result of encryption in this variable

        */

        virtual void EncodeL( HBufC8*& aResult ) const = 0;

	 	/**

        * To be implemented in derived classes, used to

        * decrypt raw data to current instance.

        * Will leave with KErrArgument if give data is not valid

        * @since 2.8

        * @param aRawData raw-data to be parsed in this instance

        */

        virtual void DecodeL( const TDesC8& aRawData ) = 0;

		/**

		 * To be implemented in derived classes, used to

		 * retrieve ASN1 Encoder

		 * Leaves returned encoder in CleanupStack

		 */

		virtual CASN1EncBase* EncoderLC() const = 0;

    };

#endif      // MCMSModule_H

// End of File