syncmlfw/dm/settings/src/NSmlDMCrypt.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 14 Apr 2010 16:50:34 +0300
branchRCL_3
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permissions -rw-r--r--
Revision: 201013 Kit: 201015
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/*
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* Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  DM-settings 
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*
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*/
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// INCLUDE FILES
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#include "nsmldmsettings.h"
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//------------------------------------------------------------------------------
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//
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//		CNSmlDMCrypt
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//
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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//		CNSmlDMCrypt::CNSmlDMCrypt()
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//		Constructor.
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//------------------------------------------------------------------------------
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EXPORT_C CNSmlDMCrypt::CNSmlDMCrypt()
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	{
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	}
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//------------------------------------------------------------------------------
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//		CNSmlDMCrypt::~CNSmlDMCrypt()
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//		Destructor.
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//------------------------------------------------------------------------------
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EXPORT_C CNSmlDMCrypt::~CNSmlDMCrypt()
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	{
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	delete iOutput;
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	}
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//------------------------------------------------------------------------------
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//		CNSmlDMCrypt::EncryptedL()
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//		Encrypts 
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//------------------------------------------------------------------------------
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EXPORT_C TDesC& CNSmlDMCrypt::EncryptedL( const TDesC& aInput )
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	{
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	delete iOutput;
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	iOutput = 0;
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	iOutput = aInput.AllocL();
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	TPtr ptrOutput( iOutput->Des() );
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	// Key definitions to be used in encryption
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	TUint16 key1 = 0xa576;
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	TUint16 key2 = 0x02f9;
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	for (TInt i = 0; i < iOutput->Length(); i++ )
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		{
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		key1 %= key2;
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		key1 <<= 7;
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		key1 ^= key2;
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		key2 %= key1;
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		key2 <<= 3;
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		key2 ^= key1;
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		ptrOutput[i] ^= key1;  
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		}
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	return *iOutput;
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	}
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//------------------------------------------------------------------------------
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//		CNSmlDMCrypt::DecryptedL()
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//		Destructor.
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//------------------------------------------------------------------------------
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EXPORT_C TDesC& CNSmlDMCrypt::DecryptedL( const TDesC& aInput )
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	{
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	return EncryptedL( aInput );
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	}
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//  End of File