/*

* Copyright (c) 2006 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:  The header file of KeyEncryptor

*

*/

#ifndef __KEYENCRYPTOR_H__

#define __KEYENCRYPTOR_H__

#include <e32des8.h>

#define KEY_ENCRYPTOR 0x101FB670

const TUid KKeyEncryptorInterfaceUID = { KEY_ENCRYPTOR };

/**

 * Key Encryptor Interface class

 *

 * This class defines the interface for key encryptor which is used

 * to encrypt the key when it is stored to the keystore and decrypt it back

 * when the key is used or exported.

 * 

 *  @lib 

 *  @since S60 v3.2

 */

class MKeyEncryptor

    {

    public:

       /**

        * Encrypt the data in the given buffer

        *

        * @param aBuf data to be encrypted

        * @return encrypted data

        */

        virtual HBufC8* EncryptL( TDesC8& aBuf )=0;

       /**

        * Decrypt the data in the given buffer

        *

        * @param aBuf data to be decrypted

        * @return decrypted data

        */

        virtual HBufC8* DecryptL( TDesC8& aBuf )=0;

       /**

        * release the encryptor when not needed

        *

        * @param 

        * @return 

        */

        virtual void Release()=0;

    };

#endif //KEYENCRYPTOR_H  

//EOF