1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/security/crypto/weakcrypto/source/symmetric/des.inl	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,76 @@
     1.4 +/*
     1.5 +* Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of the License "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description: 
    1.18 +*
    1.19 +*/
    1.20 +
    1.21 +
    1.22 +#ifndef __DES_INL__
    1.23 +#define __DES_INL__
    1.24 +
    1.25 +inline void IPerm(TUint32& left, TUint32& right)
    1.26 +	{
    1.27 +	TUint32 work;
    1.28 +
    1.29 +	right = rotlFixed(right, 4U);
    1.30 +	work = (left ^ right) & 0xf0f0f0f0;
    1.31 +	left ^= work;
    1.32 +	right = rotrFixed(right^work, 20U);
    1.33 +	work = (left ^ right) & 0xffff0000;
    1.34 +	left ^= work;
    1.35 +	right = rotrFixed(right^work, 18U);
    1.36 +	work = (left ^ right) & 0x33333333;
    1.37 +	left ^= work;
    1.38 +	right = rotrFixed(right^work, 6U);
    1.39 +	work = (left ^ right) & 0x00ff00ff;
    1.40 +	left ^= work;
    1.41 +	right = rotlFixed(right^work, 9U);
    1.42 +	work = (left ^ right) & 0xaaaaaaaa;
    1.43 +	left = rotlFixed(left^work, 1U);
    1.44 +	right ^= work;
    1.45 +	}
    1.46 +
    1.47 +inline void FPerm(TUint32& left, TUint32& right)
    1.48 +	{
    1.49 +	TUint32 work;
    1.50 +
    1.51 +	right = rotrFixed(right, 1U);
    1.52 +	work = (left ^ right) & 0xaaaaaaaa;
    1.53 +	right ^= work;
    1.54 +	left = rotrFixed(left^work, 9U);
    1.55 +	work = (left ^ right) & 0x00ff00ff;
    1.56 +	right ^= work;
    1.57 +	left = rotlFixed(left^work, 6U);
    1.58 +	work = (left ^ right) & 0x33333333;
    1.59 +	right ^= work;
    1.60 +	left = rotlFixed(left^work, 18U);
    1.61 +	work = (left ^ right) & 0xffff0000;
    1.62 +	right ^= work;
    1.63 +	left = rotlFixed(left^work, 20U);
    1.64 +	work = (left ^ right) & 0xf0f0f0f0;
    1.65 +	right ^= work;
    1.66 +	left = rotrFixed(left^work, 4U);
    1.67 +	}
    1.68 +
    1.69 +inline void ReverseKeySchedule(TUint32* aKey)
    1.70 +	{
    1.71 +	TInt i = 0;
    1.72 +	for (; i<16; i+=2)
    1.73 +		{
    1.74 +		TClassSwap((*(aKey+i)), (*(aKey+(32-2-i))));
    1.75 +		TClassSwap((*(aKey+i+1)), (*(aKey+(32-1-i))));
    1.76 +		}
    1.77 +	}
    1.78 +
    1.79 +#endif //__DES_INL__