/*

* Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

#ifndef __DES_INL__

#define __DES_INL__

inline void IPerm(TUint32& left, TUint32& right)

	{

	TUint32 work;

	right = rotlFixed(right, 4U);

	work = (left ^ right) & 0xf0f0f0f0;

	left ^= work;

	right = rotrFixed(right^work, 20U);

	work = (left ^ right) & 0xffff0000;

	left ^= work;

	right = rotrFixed(right^work, 18U);

	work = (left ^ right) & 0x33333333;

	left ^= work;

	right = rotrFixed(right^work, 6U);

	work = (left ^ right) & 0x00ff00ff;

	left ^= work;

	right = rotlFixed(right^work, 9U);

	work = (left ^ right) & 0xaaaaaaaa;

	left = rotlFixed(left^work, 1U);

	right ^= work;

	}

inline void FPerm(TUint32& left, TUint32& right)

	{

	TUint32 work;

	right = rotrFixed(right, 1U);

	work = (left ^ right) & 0xaaaaaaaa;

	right ^= work;

	left = rotrFixed(left^work, 9U);

	work = (left ^ right) & 0x00ff00ff;

	right ^= work;

	left = rotlFixed(left^work, 6U);

	work = (left ^ right) & 0x33333333;

	right ^= work;

	left = rotlFixed(left^work, 18U);

	work = (left ^ right) & 0xffff0000;

	right ^= work;

	left = rotlFixed(left^work, 20U);

	work = (left ^ right) & 0xf0f0f0f0;

	right ^= work;

	left = rotrFixed(left^work, 4U);

	}

inline void ReverseKeySchedule(TUint32* aKey)

	{

	TInt i = 0;

	for (; i<16; i+=2)

		{

		TClassSwap((*(aKey+i)), (*(aKey+(32-2-i))));

		TClassSwap((*(aKey+i+1)), (*(aKey+(32-1-i))));

		}

	}

#endif //__DES_INL__