/*

* Copyright (c) 2008 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: A class that provides a decrypt operation.

*

*/

#ifndef C_PKISERVICEDECRYPTOR_H

#define C_PKISERVICEDECRYPTOR_H

#include <e32base.h>

#include <unifiedkeystore.h>

#include "pkidefs.h"

class MCTKeyStoreManager;

class CLogonServices;

/**

 * A class that decrypts data using a private key.

 *

 * This class handles the decryption of a data, which is

 * encrypted by using a public key from a stored keypair.

 */

class CPkiServiceDecryptor : public CActive

    {

public:

    static CPkiServiceDecryptor* NewL(CLogonServices& aLogonServices);

    ~CPkiServiceDecryptor();

    void Decrypt(const TPKIKeyIdentifier& aKeyId,

                 const TDesC8& aEncryptedData,

                 TPtr8& aPlainTextData,

                 CUnifiedKeyStore& aUnifiedKeyStore,

                 TInt aUsedKeyStore, 

                 TRequestStatus& aClientstatus);

    void RunL();

    void DoCancel();

private:

    enum TDecryptorState

        {

        EDecryptorIdle = 0,

        EDecryptorGettingKey,

		EDecryptorOpeningDecryptor,

		EDecryptorDecrypting        

        };

    CPkiServiceDecryptor(CLogonServices& aLogonServices);

    void Cleanup();

    CLogonServices&     iLogonServices;

    TDecryptorState     iState;

    CUnifiedKeyStore*   iKeyStore; //Not owned by this class

    TInt                iUsedKeyStore;

    const TDesC8*       iInput;    //Not owned by this class

    TPtr8*              iPlainText;//Not owned by this class

    TRequestStatus*     iClientStatus;

    MCTDecryptor*              iDecryptor;        

    RMPointerArray<CCTKeyInfo> iKeysList;

    CCTKeyInfo*                iKeyInfo;

    };

#endif //C_PKISERVICEDECRYPTOR_H