/*

 * 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__