crypto/weakcrypto/test/tsymmetric/tactionmontecarlo.cpp
author Santosh Patil <santosh.v.patil@nokia.com>
Wed, 08 Jul 2009 11:25:26 +0100
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permissions -rw-r--r--
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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/*
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* Copyright (c) 1998-2009 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 "tactionmontecarlo.h"
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#include "bufferedtransformation.h"
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#include "rijndael.h"
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#include "cbcmode.h"
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#include "padding.h"
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const TInt KAESBlockSizeBytes = 16;	//	128 bits
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CTestAction* CActionMonteCarlo::NewL(RFs& aFs,
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									   CConsoleBase& aConsole,
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									   Output& aOut, 
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									   const TTestActionSpec& aTestActionSpec)
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	{
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	CTestAction* self = CActionMonteCarlo::NewLC(aFs, aConsole,
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		aOut, aTestActionSpec);
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	CleanupStack::Pop();
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	return self;
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	}
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CTestAction* CActionMonteCarlo::NewLC(RFs& aFs,
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										CConsoleBase& aConsole,
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										Output& aOut, 
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										const TTestActionSpec& aTestActionSpec)
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	{
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	CActionMonteCarlo* self = new(ELeave) CActionMonteCarlo(aFs, aConsole, aOut);
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	CleanupStack::PushL(self);
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	self->ConstructL(aTestActionSpec);
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	return self;
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	}
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CActionMonteCarlo::~CActionMonteCarlo()
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{
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	delete iEncrypt;
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	delete iDecrypt;
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}
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CActionMonteCarlo::CActionMonteCarlo(RFs& aFs, 
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								 CConsoleBase& aConsole,
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								 Output& aOut)
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: CCryptoTestAction(aFs, aConsole, aOut)
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{}
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void CActionMonteCarlo::DoPerformPrerequisiteL()
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{
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	TInt err = KErrNone;
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	TInt pos = 0;
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	TPtrC8 monteCarlo = Input::ParseElement(*iBody, KMonteCarloStart, KMonteCarloEnd, pos, err);
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	DoInputParseL(monteCarlo);
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	CBlockTransformation* encryptor = NULL;
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	CBlockTransformation* decryptor = NULL;
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	switch (iCipherType)
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	{
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		case (EAESMonteCarloEncryptECB):
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		{
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			encryptor = CAESEncryptor::NewLC(iKey->Des());
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		}
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		break;
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		case (EAESMonteCarloDecryptECB):
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		{
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			decryptor = CAESDecryptor::NewLC(iKey->Des());
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		}
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		break;
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		case (EAESMonteCarloEncryptCBC):
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		{
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			CBlockTransformation* aesEncryptor = NULL;		
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			aesEncryptor = CAESEncryptor::NewLC(iKey->Des());
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			encryptor = CModeCBCEncryptor::NewL(aesEncryptor, iIV->Des());
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			CleanupStack::Pop(aesEncryptor);
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			CleanupStack::PushL(encryptor);		
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		}
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		break;
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		case (EAESMonteCarloDecryptCBC):
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		{
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			CBlockTransformation* aesDecryptor = NULL;		
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			aesDecryptor = CAESDecryptor::NewLC(iKey->Des());
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			decryptor = CModeCBCDecryptor::NewL(aesDecryptor, iIV->Des());
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			CleanupStack::Pop(aesDecryptor);
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			CleanupStack::PushL(decryptor);		
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		}
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		break;
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		default:
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		{
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			ASSERT(0);
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			User::Leave(KErrNotSupported);
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		}
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	}
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   114
	CPaddingSSLv3* padding = 0;
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   115
	if (encryptor)
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   116
		{
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   117
		padding = CPaddingSSLv3::NewLC(encryptor->BlockSize());
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   118
		iEncrypt = CBufferedEncryptor::NewL(encryptor, padding);	
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   119
		iEResult = HBufC8::NewMaxL(iEncrypt->MaxOutputLength(iInput->Length()));
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   120
		}
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   121
	else if (decryptor)
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   122
		{
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   123
		padding = CPaddingSSLv3::NewLC(decryptor->BlockSize());
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   124
		iDecrypt = CBufferedDecryptor::NewL(decryptor, padding);
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   125
		iDResult = HBufC8::NewMaxL(iDecrypt->MaxOutputLength(iInput->Size()));
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   126
		}
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   127
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   128
	CleanupStack::Pop(2);	//	padding, encryptor/decryptor
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   129
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   130
}
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   131
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   132
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   133
void CActionMonteCarlo::DoPerformActionL()
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   134
{
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   135
	iResult = EFalse;
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   136
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   137
	__ASSERT_DEBUG(iInput->Size()==KAESBlockSizeBytes, User::Panic(_L("tsymmetric"), KErrNotSupported));
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   138
	
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   139
	if (iCipherType==EAESMonteCarloEncryptECB)
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   140
		DoAESEncryptECB();
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   141
	else if (iCipherType==EAESMonteCarloDecryptECB)
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   142
		DoAESDecryptECB();	
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   143
	else if (iCipherType==EAESMonteCarloEncryptCBC)
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   144
		DoAESEncryptCBC();
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   145
	else if (iCipherType==EAESMonteCarloDecryptCBC)
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   146
		DoAESDecryptCBC();
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   147
	else
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   148
		User::Leave(KErrNotSupported);
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   149
}
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   150
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   151
void CActionMonteCarlo::DoAESEncryptECB()
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   152
{
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   153
	TPtr8 theEncryptResult(iEResult->Des());
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   154
	theEncryptResult.FillZ(theEncryptResult.MaxLength());
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   155
	theEncryptResult.SetLength(0);
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   156
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   157
	TInt index = 0;
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   158
	TPtr8 theInput(iInput->Des());
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   159
	for (; index < KMonteCarloIterations; index++)
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   160
	{
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   161
		iEncrypt->Process(theInput, theEncryptResult);	
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   162
		theInput.Copy(theEncryptResult);
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   163
		theEncryptResult.FillZ(theEncryptResult.MaxLength());
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   164
		theEncryptResult.SetLength(0);
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   165
	}
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   166
	
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   167
	if (*iOutput==*iEResult)
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   168
	{	
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   169
		iResult = ETrue;
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   170
	}
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   171
}
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   172
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   173
void CActionMonteCarlo::DoAESDecryptECB()
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   174
{
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   175
	TPtr8 theDecryptResult(iDResult->Des());
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   176
	theDecryptResult.FillZ(theDecryptResult.MaxLength());
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   177
	theDecryptResult.SetLength(0);
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   178
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   179
	TInt index = 0;
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   180
	TPtr8 theInput(iInput->Des());
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   181
	for (; index < KMonteCarloIterations; index++)
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   182
	{
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   183
		iDecrypt->Process(theInput, theDecryptResult);	
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   184
		theInput.Copy(theDecryptResult);
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   185
		theDecryptResult.FillZ(theDecryptResult.MaxLength());
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   186
		theDecryptResult.SetLength(0);
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   187
	}
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   188
	
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   189
	if (*iOutput==*iInput)
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   190
	{	
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   191
		iResult = ETrue;
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   192
	}
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   193
}
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   194
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   195
void CActionMonteCarlo::DoAESEncryptCBC()
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   196
    {	
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   197
	TPtr8 theEncryptResult(iEResult->Des());
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   198
	theEncryptResult.FillZ(theEncryptResult.MaxLength());
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   199
	theEncryptResult.SetLength(0);
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   200
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   201
	TInt index = 0;
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   202
	TPtr8 theInput(iInput->Des());
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   203
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   204
	TBuf8<KAESBlockSizeBytes> nextBuf;
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   205
	nextBuf.FillZ(KAESBlockSizeBytes);
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   206
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   207
    for (; index < KMonteCarloIterations-1; index++)
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   208
	    {
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   209
	    iEncrypt->Process(theInput, theEncryptResult);	
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   210
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   211
	    if (index==0)
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   212
		theInput.Copy(*iIV);	//	First loop, use the original IV as next PT block
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   213
		else	
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   214
		theInput.Copy(nextBuf);	//	Use previous CT block as next PT block
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diff changeset
   215
		
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   216
	    //	 Save CT block for next loop when it'll become the PT block	
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   217
		nextBuf.Copy(theEncryptResult);
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   218
	    //	 Reset for next encryption	
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   219
		theEncryptResult.FillZ(theEncryptResult.MaxLength());
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   220
		theEncryptResult.SetLength(0);
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   221
	    }
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   222
	
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   223
    iEncrypt->Process(theInput, theEncryptResult);	
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   224
	
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   225
	if  (theEncryptResult.Compare(*iOutput)==KErrNone)
2c201484c85f Move the Security package to EPL, and add the implementations of the cryptographic algorithms
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   226
	    {	
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   227
	    iResult = ETrue;
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	    }
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    }
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void CActionMonteCarlo::DoAESDecryptCBC()
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    {
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	TPtr8 theDecryptResult(iDResult->Des());
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	theDecryptResult.FillZ(theDecryptResult.MaxLength());
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	theDecryptResult.SetLength(0);
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	TInt index = 0;
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    TPtr8 theInput(iInput->Des());
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    for (; index < KMonteCarloIterations-1; index++)
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	    {
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	    iDecrypt->Process(theInput, theDecryptResult);	
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		//	Use previous PT block as next CT block
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	 	theInput.Copy(theDecryptResult);
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	    //  Reset for next decryption	
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		theDecryptResult.FillZ(theDecryptResult.MaxLength());
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		theDecryptResult.SetLength(0);
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	    }
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    // Last loop	
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    iDecrypt->Process(theInput, theDecryptResult);	
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	if (theDecryptResult.Compare(*iOutput)==KErrNone)
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 	   {	
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	   iResult = ETrue;
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	   }
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    }