crypto/weakcryptospi/test/tplugins/src/rijndaelimpl.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 15 Mar 2010 12:46:43 +0200
branchRCL_3
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permissions -rw-r--r--
Revision: 201010 Kit: 201010
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/*
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* Copyright (c) 2006-2010 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 the License "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: 
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*
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*/
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#include "rijndaelimpl.h"
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#include <cryptospi/keys.h>
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#include "rijndaeltables.h"
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#include "../../../source/common/inlines.h"
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#include "pluginconfig.h"
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#include "symmetriccipherimpl.h"
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#include <cryptostrength.h>
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using namespace SoftwareCrypto;
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const TUint KAESKeyBytes128 = 16;
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const TUint KAESKeyBytes192 = 24;
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const TUint KAESKeyBytes256 = 32;
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const TUint KAESBlockBytes = 16;
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/* CRijndaelmpl*/
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CRijndaelImpl::CRijndaelImpl(
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	TUid aCryptoMode,
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	TUid aOperationMode,
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	TUid aPadding,
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	TUid aImplementationUid) :
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	CSymmetricBlockCipherImpl(KAESBlockBytes, aCryptoMode, aOperationMode, aPadding),
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	iImplementationUid(aImplementationUid)
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	{
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	}
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CRijndaelImpl* CRijndaelImpl::NewL(const CKey& aKey, TUid aCryptoMode,	TUid aOperationMode,
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									TUid aPadding, TUid aImplementationUid)
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	{
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	CRijndaelImpl* self = CRijndaelImpl::NewLC(aKey, aCryptoMode, aOperationMode, 
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												aPadding, aImplementationUid);
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	CleanupStack::Pop(self);
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	return self;
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	}
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CRijndaelImpl* CRijndaelImpl::NewLC(const CKey& aKey, TUid aCryptoMode, TUid aOperationMode,
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									TUid aPadding, TUid aImplementationUid)
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	{
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	CRijndaelImpl* self = new(ELeave) CRijndaelImpl(aCryptoMode, aOperationMode, aPadding,
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												aImplementationUid);
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	CleanupStack::PushL(self);
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	self->ConstructL(aKey);
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	const TDesC8& keyContent = aKey.GetTDesC8L(KSymmetricKeyParameterUid);
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	TCrypto::IsSymmetricWeakEnoughL(BytesToBits(keyContent.Size()) - keyContent.Size());
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	return self;
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	}
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CRijndaelImpl::~CRijndaelImpl()
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	{
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	// make sure key information isn't visible to other processes if the
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	// page is reused.
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	Mem::FillZ(&iK, sizeof(iK));
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	}
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void CRijndaelImpl::ConstructL(const CKey& aKey)
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	{
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	CSymmetricBlockCipherImpl::ConstructL(aKey);			
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	SetKeySchedule();
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	}
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CExtendedCharacteristics* CRijndaelImpl::CreateExtendedCharacteristicsL()
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	{
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	// All Symbian software plug-ins have unlimited concurrency, cannot be reserved
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	// for exclusive use and are not CERTIFIED to be standards compliant.
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	return CExtendedCharacteristics::NewL(KMaxTInt, EFalse);
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	}
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const CExtendedCharacteristics* CRijndaelImpl::GetExtendedCharacteristicsL()
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	{
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	return CRijndaelImpl::CreateExtendedCharacteristicsL();
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	}
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TUid CRijndaelImpl::ImplementationUid() const
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	{
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	return iImplementationUid;
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	}
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TBool CRijndaelImpl::IsValidKeyLength(TInt aKeyBytes) const
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	{
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	switch(aKeyBytes)
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		{
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		case KAESKeyBytes128:
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		case KAESKeyBytes192:
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		case KAESKeyBytes256:
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			return ETrue;
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		default:
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			return EFalse;
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		}			
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	}
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void CRijndaelImpl::SetKeySchedule()
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	{
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	iRounds = iKeyBytes/4 + 6;
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diff changeset
   114
	if (iCryptoMode.iUid == KCryptoModeEncrypt)
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parents:
diff changeset
   115
		{
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parents:
diff changeset
   116
		SetEncryptKeySchedule(*iKey, &iK[0]);
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parents:
diff changeset
   117
		}
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parents:
diff changeset
   118
	else 
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parents:
diff changeset
   119
		{
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parents:
diff changeset
   120
		ASSERT(iCryptoMode.iUid == KCryptoModeDecrypt);
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parents:
diff changeset
   121
		SetDecryptKeySchedule(*iKey, &iK[0]);
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parents:
diff changeset
   122
		}	
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parents:
diff changeset
   123
	}	
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parents:
diff changeset
   124
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parents:
diff changeset
   125
void CRijndaelImpl::TransformEncrypt(
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diff changeset
   126
	TUint8* aBuffer, 
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parents:
diff changeset
   127
	TUint aNumBlocks)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   128
	{
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parents:
diff changeset
   129
	for (TInt i = 0; i < aNumBlocks; ++i)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   130
		{		
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parents:
diff changeset
   131
		ModeEncryptStart(aBuffer);
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parents:
diff changeset
   132
			
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   133
		TUint32 s0, s1, s2, s3, t0, t1, t2, t3;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   134
		const TUint32* rk = &iK[0];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   135
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   136
	/*
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parents:
diff changeset
   137
	 *	map byte array block to cipher state
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   138
	 *	and add initial round key:
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   139
	*/
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   140
		GetBlockBigEndian(aBuffer, s0, s1, s2, s3);
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   141
		s0 ^= rk[0];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   142
		s1 ^= rk[1];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   143
		s2 ^= rk[2];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   144
		s3 ^= rk[3];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   145
	/*
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   146
	 *	Nr - 1 full rounds:
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   147
	*/
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   148
	    TUint r = iRounds >> 1;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   149
		FOREVER
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   150
			{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   151
	        t0 =
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   152
	            RIJNDAEL_TABLE::Te0[GETBYTE(s0, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   153
	            RIJNDAEL_TABLE::Te1[GETBYTE(s1, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   154
	            RIJNDAEL_TABLE::Te2[GETBYTE(s2, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   155
	            RIJNDAEL_TABLE::Te3[GETBYTE(s3, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   156
	            rk[4];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   157
	        t1 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   158
	            RIJNDAEL_TABLE::Te0[GETBYTE(s1, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
	            RIJNDAEL_TABLE::Te1[GETBYTE(s2, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   160
	            RIJNDAEL_TABLE::Te2[GETBYTE(s3, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   161
	            RIJNDAEL_TABLE::Te3[GETBYTE(s0, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   162
	            rk[5];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   163
	        t2 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   164
	            RIJNDAEL_TABLE::Te0[GETBYTE(s2, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   165
	            RIJNDAEL_TABLE::Te1[GETBYTE(s3, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   166
	            RIJNDAEL_TABLE::Te2[GETBYTE(s0, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
	            RIJNDAEL_TABLE::Te3[GETBYTE(s1, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   168
	            rk[6];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   169
	        t3 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   170
	            RIJNDAEL_TABLE::Te0[GETBYTE(s3, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   171
	            RIJNDAEL_TABLE::Te1[GETBYTE(s0, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   172
	            RIJNDAEL_TABLE::Te2[GETBYTE(s1, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   173
	            RIJNDAEL_TABLE::Te3[GETBYTE(s2, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   174
	            rk[7];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   175
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   176
	        rk += 8;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   177
	        if (--r == 0) 
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   178
				break;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   179
	        
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   180
	        s0 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   181
	            RIJNDAEL_TABLE::Te0[GETBYTE(t0, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   182
	            RIJNDAEL_TABLE::Te1[GETBYTE(t1, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   183
	            RIJNDAEL_TABLE::Te2[GETBYTE(t2, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   184
	            RIJNDAEL_TABLE::Te3[GETBYTE(t3, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   185
	            rk[0];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   186
	        s1 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   187
	            RIJNDAEL_TABLE::Te0[GETBYTE(t1, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   188
	            RIJNDAEL_TABLE::Te1[GETBYTE(t2, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   189
	            RIJNDAEL_TABLE::Te2[GETBYTE(t3, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   190
	            RIJNDAEL_TABLE::Te3[GETBYTE(t0, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
	            rk[1];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   192
	        s2 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   193
	            RIJNDAEL_TABLE::Te0[GETBYTE(t2, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   194
	            RIJNDAEL_TABLE::Te1[GETBYTE(t3, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
	            RIJNDAEL_TABLE::Te2[GETBYTE(t0, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   196
	            RIJNDAEL_TABLE::Te3[GETBYTE(t1, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   197
	            rk[2];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   198
	        s3 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   199
	            RIJNDAEL_TABLE::Te0[GETBYTE(t3, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
	            RIJNDAEL_TABLE::Te1[GETBYTE(t0, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   201
	            RIJNDAEL_TABLE::Te2[GETBYTE(t1, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   202
	            RIJNDAEL_TABLE::Te3[GETBYTE(t2, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
	            rk[3];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   204
			}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   205
	/*
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
	 *	apply last round and
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   207
	 *	map cipher state to byte array block:
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   208
	*/
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   209
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   210
		s0 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   211
			(RIJNDAEL_TABLE::Te4[GETBYTE(t0, 3)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   212
			(RIJNDAEL_TABLE::Te4[GETBYTE(t1, 2)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   213
			(RIJNDAEL_TABLE::Te4[GETBYTE(t2, 1)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   214
			(RIJNDAEL_TABLE::Te4[GETBYTE(t3, 0)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   215
			rk[0];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   216
		s1 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   217
			(RIJNDAEL_TABLE::Te4[GETBYTE(t1, 3)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   218
			(RIJNDAEL_TABLE::Te4[GETBYTE(t2, 2)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   219
			(RIJNDAEL_TABLE::Te4[GETBYTE(t3, 1)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   220
			(RIJNDAEL_TABLE::Te4[GETBYTE(t0, 0)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
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diff changeset
   221
			rk[1];
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parents:
diff changeset
   222
		s2 =
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parents:
diff changeset
   223
			(RIJNDAEL_TABLE::Te4[GETBYTE(t2, 3)] & 0xff000000) ^
35751d3474b7 Revision: 200935
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parents:
diff changeset
   224
			(RIJNDAEL_TABLE::Te4[GETBYTE(t3, 2)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   225
			(RIJNDAEL_TABLE::Te4[GETBYTE(t0, 1)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   226
			(RIJNDAEL_TABLE::Te4[GETBYTE(t1, 0)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
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parents:
diff changeset
   227
			rk[2];
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parents:
diff changeset
   228
		s3 =
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   229
			(RIJNDAEL_TABLE::Te4[GETBYTE(t3, 3)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   230
			(RIJNDAEL_TABLE::Te4[GETBYTE(t0, 2)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   231
			(RIJNDAEL_TABLE::Te4[GETBYTE(t1, 1)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   232
			(RIJNDAEL_TABLE::Te4[GETBYTE(t2, 0)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   233
			rk[3];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   234
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   235
		PutBlockBigEndian(aBuffer, s0, s1, s2, s3);
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   236
		ModeEncryptEnd(aBuffer);
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   237
		aBuffer += KAESBlockBytes;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   238
		}
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   239
	}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   240
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   241
void CRijndaelImpl::TransformDecrypt(
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   242
	TUint8* aBuffer,
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   243
	TUint aNumBlocks)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   244
	{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   245
	for (TInt i = 0; i < aNumBlocks; ++i)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   246
		{		
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   247
		ModeDecryptStart(aBuffer);
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   248
		
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   249
		TUint32 s0, s1, s2, s3, t0, t1, t2, t3;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   250
	    const TUint32* rk = &iK[0];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   251
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   252
	/*
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   253
	 *	map byte array block to cipher state
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   254
	 *	and add initial round key:
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   255
	*/
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   256
		GetBlockBigEndian(aBuffer, s0, s1, s2, s3);
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   257
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   258
		s0 ^= rk[0];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   259
		s1 ^= rk[1];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   260
		s2 ^= rk[2];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   261
		s3 ^= rk[3];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   262
	/*
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   263
	 *	Nr - 1 full rounds:
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   264
	*/
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   265
	    TUint r = iRounds >> 1;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   266
	    FOREVER
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   267
			{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   268
	        t0 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   269
	            RIJNDAEL_TABLE::Td0[GETBYTE(s0, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   270
	            RIJNDAEL_TABLE::Td1[GETBYTE(s3, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   271
	            RIJNDAEL_TABLE::Td2[GETBYTE(s2, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   272
	            RIJNDAEL_TABLE::Td3[GETBYTE(s1, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   273
	            rk[4];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   274
	        t1 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   275
	            RIJNDAEL_TABLE::Td0[GETBYTE(s1, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   276
	            RIJNDAEL_TABLE::Td1[GETBYTE(s0, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   277
	            RIJNDAEL_TABLE::Td2[GETBYTE(s3, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   278
	            RIJNDAEL_TABLE::Td3[GETBYTE(s2, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   279
	            rk[5];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   280
	        t2 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   281
	            RIJNDAEL_TABLE::Td0[GETBYTE(s2, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   282
	            RIJNDAEL_TABLE::Td1[GETBYTE(s1, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   283
	            RIJNDAEL_TABLE::Td2[GETBYTE(s0, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   284
	            RIJNDAEL_TABLE::Td3[GETBYTE(s3, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   285
	            rk[6];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   286
	        t3 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   287
	            RIJNDAEL_TABLE::Td0[GETBYTE(s3, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   288
	            RIJNDAEL_TABLE::Td1[GETBYTE(s2, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   289
	            RIJNDAEL_TABLE::Td2[GETBYTE(s1, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   290
	            RIJNDAEL_TABLE::Td3[GETBYTE(s0, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   291
	            rk[7];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   292
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   293
	        rk += 8;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   294
	        if (--r == 0)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   295
	            break;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   296
	        
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   297
	        s0 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   298
	            RIJNDAEL_TABLE::Td0[GETBYTE(t0, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   299
	            RIJNDAEL_TABLE::Td1[GETBYTE(t3, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   300
	            RIJNDAEL_TABLE::Td2[GETBYTE(t2, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   301
	            RIJNDAEL_TABLE::Td3[GETBYTE(t1, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   302
	            rk[0];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   303
	        s1 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   304
	            RIJNDAEL_TABLE::Td0[GETBYTE(t1, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   305
	            RIJNDAEL_TABLE::Td1[GETBYTE(t0, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   306
	            RIJNDAEL_TABLE::Td2[GETBYTE(t3, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   307
	            RIJNDAEL_TABLE::Td3[GETBYTE(t2, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   308
	            rk[1];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   309
	        s2 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   310
	            RIJNDAEL_TABLE::Td0[GETBYTE(t2, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   311
	            RIJNDAEL_TABLE::Td1[GETBYTE(t1, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   312
	            RIJNDAEL_TABLE::Td2[GETBYTE(t0, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   313
	            RIJNDAEL_TABLE::Td3[GETBYTE(t3, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   314
	            rk[2];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   315
	        s3 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   316
	            RIJNDAEL_TABLE::Td0[GETBYTE(t3, 3)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   317
	            RIJNDAEL_TABLE::Td1[GETBYTE(t2, 2)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   318
	            RIJNDAEL_TABLE::Td2[GETBYTE(t1, 1)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   319
	            RIJNDAEL_TABLE::Td3[GETBYTE(t0, 0)] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   320
	            rk[3];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   321
			}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   322
	/*
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   323
	 *	apply last round and
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   324
	 *	map cipher state to byte array block:
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   325
	*/
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   326
	   	s0 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   327
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t0, 3)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   328
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t3, 2)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   329
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t2, 1)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   330
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t1, 0)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   331
	   		rk[0];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   332
	   	s1 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   333
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t1, 3)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   334
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t0, 2)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   335
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t3, 1)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   336
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t2, 0)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   337
	   		rk[1];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   338
	   	s2 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   339
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t2, 3)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   340
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t1, 2)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t0, 1)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t3, 0)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
	   		rk[2];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
	   	s3 =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t3, 3)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t2, 2)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t1, 1)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
	   		(RIJNDAEL_TABLE::Td4[GETBYTE(t0, 0)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
	   		rk[3];		
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
		PutBlockBigEndian(aBuffer, s0, s1, s2, s3);
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
		ModeDecryptEnd(aBuffer);
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
		aBuffer += KAESBlockBytes;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
		}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
	}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
void CRijndaelImpl::SetEncryptKeySchedule(const TDesC8& aKey, TUint32* aKeySchedule)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
	{		
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
	TUint keySize = aKey.Length();
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
	TUint32 temp; 
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
	TUint32* rk = aKeySchedule;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
	TUint i = 0;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
	GetUserKeyBigEndian(rk, keySize/4, &aKey[0], keySize);
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
	switch(keySize)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
		{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
		case (KAESKeyBytes128):
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
			{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
			FOREVER
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
				{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
				temp  = rk[3];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
				rk[4] = rk[0] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
					(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 2)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
					(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 1)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
					(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 0)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
					(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 3)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
					RIJNDAEL_TABLE::rcon[i];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
				rk[5] = rk[1] ^ rk[4];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
				rk[6] = rk[2] ^ rk[5];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
				rk[7] = rk[3] ^ rk[6];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
				if (++i == 10)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
					break;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
				rk += 4;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
				}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
			}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
		break;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
		case (KAESKeyBytes192):
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
			{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
			FOREVER
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
				{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
				temp = rk[ 5];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
				rk[ 6] = rk[ 0] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
					(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 2)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
					(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 1)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
					(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 0)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
					(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 3)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
					RIJNDAEL_TABLE::rcon[i];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
				rk[ 7] = rk[ 1] ^ rk[ 6];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
				rk[ 8] = rk[ 2] ^ rk[ 7];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
				rk[ 9] = rk[ 3] ^ rk[ 8];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
				if (++i == 8)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
					break;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
				rk[10] = rk[ 4] ^ rk[ 9];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
				rk[11] = rk[ 5] ^ rk[10];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
				rk += 6;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
				}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
			}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
		break;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
		case (KAESKeyBytes256):
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
			{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
			FOREVER
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
				{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
        		temp = rk[ 7];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
        		rk[ 8] = rk[ 0] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
        			(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 2)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
        			(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 1)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
        			(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 0)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
        			(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 3)] & 0x000000ff) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
        			RIJNDAEL_TABLE::rcon[i];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
        		rk[ 9] = rk[ 1] ^ rk[ 8];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
        		rk[10] = rk[ 2] ^ rk[ 9];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
        		rk[11] = rk[ 3] ^ rk[10];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
				if (++i == 7)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
					break;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
        		temp = rk[11];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
        		rk[12] = rk[ 4] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
        			(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 3)] & 0xff000000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
        			(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 2)] & 0x00ff0000) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
        			(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 1)] & 0x0000ff00) ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
        			(RIJNDAEL_TABLE::Te4[GETBYTE(temp, 0)] & 0x000000ff);
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
        		rk[13] = rk[ 5] ^ rk[12];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
        		rk[14] = rk[ 6] ^ rk[13];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
        		rk[15] = rk[ 7] ^ rk[14];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
				rk += 8;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
				}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
			}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
		break;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
		default:
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
			assert(0);	//	Shouldn't get here, keeps compiler happy
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
		}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
	}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
void CRijndaelImpl::SetDecryptKeySchedule(const TDesC8& aKey, TUint32* aKeySchedule)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
	{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
	SetEncryptKeySchedule(aKey, aKeySchedule);
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
	TUint i, j;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
	TUint32* rk = aKeySchedule;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
	TUint32 temp;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
	// invert the order of the round keys 
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
	for (i = 0, j = 4*iRounds; i < j; i += 4, j -= 4)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
		{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
		temp = rk[i    ]; rk[i    ] = rk[j    ]; rk[j    ] = temp;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
		temp = rk[i + 1]; rk[i + 1] = rk[j + 1]; rk[j + 1] = temp;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
		temp = rk[i + 2]; rk[i + 2] = rk[j + 2]; rk[j + 2] = temp;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
		temp = rk[i + 3]; rk[i + 3] = rk[j + 3]; rk[j + 3] = temp;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
		}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
	// apply the inverse MixColumn transform to all round keys but the first and the last
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
	for (i = 1; i < iRounds; i++)
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
		{
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
		rk += 4;
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
		rk[0] =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
			RIJNDAEL_TABLE::Td0[RIJNDAEL_TABLE::Te4[GETBYTE(rk[0], 3)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
			RIJNDAEL_TABLE::Td1[RIJNDAEL_TABLE::Te4[GETBYTE(rk[0], 2)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
			RIJNDAEL_TABLE::Td2[RIJNDAEL_TABLE::Te4[GETBYTE(rk[0], 1)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
			RIJNDAEL_TABLE::Td3[RIJNDAEL_TABLE::Te4[GETBYTE(rk[0], 0)] & 0xff];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
		rk[1] =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
			RIJNDAEL_TABLE::Td0[RIJNDAEL_TABLE::Te4[GETBYTE(rk[1], 3)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
			RIJNDAEL_TABLE::Td1[RIJNDAEL_TABLE::Te4[GETBYTE(rk[1], 2)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
			RIJNDAEL_TABLE::Td2[RIJNDAEL_TABLE::Te4[GETBYTE(rk[1], 1)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
			RIJNDAEL_TABLE::Td3[RIJNDAEL_TABLE::Te4[GETBYTE(rk[1], 0)] & 0xff];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
		rk[2] =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
			RIJNDAEL_TABLE::Td0[RIJNDAEL_TABLE::Te4[GETBYTE(rk[2], 3)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
			RIJNDAEL_TABLE::Td1[RIJNDAEL_TABLE::Te4[GETBYTE(rk[2], 2)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
			RIJNDAEL_TABLE::Td2[RIJNDAEL_TABLE::Te4[GETBYTE(rk[2], 1)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
			RIJNDAEL_TABLE::Td3[RIJNDAEL_TABLE::Te4[GETBYTE(rk[2], 0)] & 0xff];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
		rk[3] =
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
			RIJNDAEL_TABLE::Td0[RIJNDAEL_TABLE::Te4[GETBYTE(rk[3], 3)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
			RIJNDAEL_TABLE::Td1[RIJNDAEL_TABLE::Te4[GETBYTE(rk[3], 2)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
			RIJNDAEL_TABLE::Td2[RIJNDAEL_TABLE::Te4[GETBYTE(rk[3], 1)] & 0xff] ^
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
			RIJNDAEL_TABLE::Td3[RIJNDAEL_TABLE::Te4[GETBYTE(rk[3], 0)] & 0xff];
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
		}
35751d3474b7 Revision: 200935
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
	}