/*

* Copyright (c) 2002-2004 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:  DM-settings 

*

*/

// INCLUDE FILES

#include "nsmldmsettings.h"

//------------------------------------------------------------------------------

//

//		CNSmlDMCrypt

//

//------------------------------------------------------------------------------

//------------------------------------------------------------------------------

//		CNSmlDMCrypt::CNSmlDMCrypt()

//		Constructor.

//------------------------------------------------------------------------------

EXPORT_C CNSmlDMCrypt::CNSmlDMCrypt()

	{

	}

//------------------------------------------------------------------------------

//		CNSmlDMCrypt::~CNSmlDMCrypt()

//		Destructor.

//------------------------------------------------------------------------------

EXPORT_C CNSmlDMCrypt::~CNSmlDMCrypt()

	{

	delete iOutput;

	}

//------------------------------------------------------------------------------

//		CNSmlDMCrypt::EncryptedL()

//		Encrypts 

//------------------------------------------------------------------------------

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

	{

	delete iOutput;

	iOutput = 0;

	iOutput = aInput.AllocL();

	TPtr ptrOutput( iOutput->Des() );

	// Key definitions to be used in encryption

	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;

	}

//------------------------------------------------------------------------------

//		CNSmlDMCrypt::DecryptedL()

//		Destructor.

//------------------------------------------------------------------------------

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

	{

	return EncryptedL( aInput );

	}

//  End of File