/*

* Copyright (c) 2004 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:  DS-settings 

*

*/

// INCLUDE FILES

#include "nsmldssettings.h"

//=============================================

//

//		CNSmlDSCrypt

//

//=============================================

//=============================================

//		CNSmlDSCrypt::CNSmlDSCrypt()

//		Constructor.

//=============================================

EXPORT_C CNSmlDSCrypt::CNSmlDSCrypt()

	{

	}

//=============================================

//		CNSmlDSCrypt::~CNSmlDSCrypt()

//		Destructor.

//=============================================

EXPORT_C CNSmlDSCrypt::~CNSmlDSCrypt()

	{

	delete iOutput;

	}

//=============================================

//		CNSmlDSCrypt::EncryptedL()

//		Destructor.

//=============================================

EXPORT_C TDesC& CNSmlDSCrypt::EncryptedL( const TDesC& aInput )

	{

	delete iOutput;

	iOutput = 0;

	iOutput = aInput.AllocL();

	TPtr ptrOutput( iOutput->Des() );

	// Keys to be used in encryption / decryption.

	TUint16 key1 = 0xa576;

	TUint16 key2 = 0x02f9;

	for (TInt i = 0; i < iOutput->Length(); i++ )

		{

		key1 %= key2;

		key1 <<= 7;

		key1 ^= key2;

		key2 %= key1;

		key2 <<= 3;

		key2 ^= key1;

		ptrOutput[i] ^= key1;

		}

	return *iOutput;

	}

//=============================================

//		CNSmlDSCrypt::DecryptedL()

//		Destructor.

//=============================================

EXPORT_C TDesC& CNSmlDSCrypt::DecryptedL( const TDesC& aInput )

	{

	return EncryptedL( aInput );

	}

//  End of File