/*

* Copyright (c) 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: 

*

*/

/**

 @file

 @internalComponent

 @released

 */

#ifndef	CCRYPTOSPIHAI_H

#define	CCRYPTOSPIHAI_H

#include <e32base.h>

#include <e32cmn.h>

#include <cryptospi/cryptospidef.h>

#include <cryptospi/cryptoparams.h>

namespace CryptoSpiHai

    {

    /**

     * This class forms the hardware abstraction interface part of the 

     * cryptoSPI. In the production code, this should be replaced by a 

     * device driver. This layer abstracts the hardware from a cryptoSPI

     * plugin. It interacts with the HAI of crypto token to get the actual 

     * key and performs the operations. This layer should be implemented in

     * kernel space.

     */

    NONSHARABLE_CLASS(CCryptoSpiHai) : public CBase

        {

    public:

        /**

         * Performs the signing operation.

         * 

         * A cryptoSPI plugin uses this, when it does not have access 

         * to the actual key.

         * 

         * @param aKeyHandle The key handle retrieved from hw crypto 

         * token

         * @param aInput The text which has to be signed.

         * @param aSignature Output param. The cryptoSPI signature.

         * 

         * @leave Can leave with all the leave codes present in HAI of 

         * reference crypto token implementation. 

         */

        IMPORT_C static void SignL(TInt aKeyHandle,

                const TDesC8& aInput, CryptoSpi::CCryptoParams& aSignature);

        /**

         * Performs the decryption operation.

         * 

         * A cryptoSPI plugin uses this, when it does not have access 

         * to the actual key.

         * 

         * @param aKeyHandle The key handle retrieved from hw crypto 

         * token

         * @param aInput The cipher text.

         * @param aOutput Output param. The decrypted plain text

         * 

         * @leave Can leave with all the leave codes present in HAI of 

         * reference crypto token implementation. 

         */        

        IMPORT_C static void DecryptL(TInt aKeyHandle,

                const TDesC8& aInput, TDes8& aOuput);

        };

    }

#endif	//	CCRYPTOSPIHAI_H