--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/test/tcryptospi/src/symmetric_mac_incremental_re_init_step.cpp	Thu Sep 10 14:01:51 2009 +0300
@@ -0,0 +1,265 @@
+/*
+* Copyright (c) 2008-2009 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: 
+* Example CTestStep derived implementation
+*
+*/
+
+
+/**
+ @file
+ @internalTechnology
+*/
+#include "symmetric_mac_incremental_re_init_step.h"
+
+#include <cryptospi/cryptomacapi.h>
+#include "keys.h"
+#include <cryptospi/plugincharacteristics.h>
+
+using namespace CryptoSpi;
+
+CSymmetricMacIncrementalReInitStep::~CSymmetricMacIncrementalReInitStep()
+	{
+	}
+
+
+CSymmetricMacIncrementalReInitStep::CSymmetricMacIncrementalReInitStep()
+	{
+	SetTestStepName(KSymmetricMacIncrementalReInitStep);
+	}
+
+
+TVerdict CSymmetricMacIncrementalReInitStep::doTestStepPreambleL()
+	{
+	return EPass;
+	}
+
+
+TVerdict CSymmetricMacIncrementalReInitStep::doTestStepL()
+	{
+	//Assume faliure, unless all is successful
+	SetTestStepResult(EFail);
+
+	INFO_PRINTF1(_L("*** Symmetric Mac - Incremental with ReInitialiseAndSetKeyL ***"));
+	INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells());
+	
+	TPtrC keyPath;
+	TPtrC tempKey;
+	TPtrC sourcePath;
+	TVariantPtrC algorithm;
+
+	if(	!GetStringFromConfig(ConfigSection(),KConfigEncryptKeyPath, keyPath) ||
+		!GetStringFromConfig(ConfigSection(),KConfigEncryptKey, tempKey) ||
+		!GetStringFromConfig(ConfigSection(),KConfigAlgorithmUid, algorithm) ||
+		!GetStringFromConfig(ConfigSection(),KConfigSourcePath, sourcePath))
+		{
+		User::Leave(KErrNotFound);
+		}
+	
+	// Create key 
+	TKeyProperty keyProperty;
+	CCryptoParams* keyParams = CCryptoParams::NewLC();
+	
+	HBufC8* convertKey = ReadInHexPlainTextL(keyPath);
+	CleanupStack::PushL(convertKey);
+	
+	keyParams->AddL(*convertKey, KSymmetricKeyParameterUid);
+	
+	CKey* key=CKey::NewL(keyProperty, *keyParams);
+	CleanupStack::PushL(key);
+	
+	//Convert tempKey to an 8 Bit Descriptor
+	HBufC8* tempKeyStr = HBufC8::NewLC(tempKey.Length());
+	TPtr8 tempKeyStrPtr = tempKeyStr->Des();
+	
+	tempKeyStrPtr.Copy(tempKey);
+	
+	CCryptoParams* tempKeyParams = CCryptoParams::NewLC();
+	tempKeyParams->AddL(*tempKeyStr, KSymmetricKeyParameterUid);
+	
+	CKey* tKey=CKey::NewL(keyProperty,*tempKeyParams);
+	CleanupStack::PushL(tKey);
+	
+	//Create a pointer for the Hmac Implementation Object
+	CMac* macImpl= NULL;
+	
+	//Retrieve a Mac Factory Object			
+	TRAPD(err,CMacFactory::CreateMacL(macImpl,
+										algorithm,
+										*tKey,
+										NULL));
+				
+	if (err != KErrNone)
+		{
+		CleanupStack::PopAndDestroy(6, keyParams); // keyParams, convertKey, key, tempKeyStr, tempKeyParams, tKey
+		delete macImpl;
+		ERR_PRINTF2(_L("*** FAIL: Failed to Create Symmetric Mac Object - %d ***"), err);
+		return EFail;
+		}
+	
+	INFO_PRINTF1(_L("Plugin loaded."));
+	
+	//Push the Mac Implementation Object onto the Cleanup Stack
+	CleanupStack::PushL(macImpl);
+
+	RFs fsSession;
+	CleanupClosePushL(fsSession);
+	
+	//Create a connection to the file server	
+	err = fsSession.Connect();
+
+	if (err != KErrNone)
+		{
+		ERR_PRINTF2(_L("*** Error: File Server Connection - %d ***"), err);
+		}
+	else
+		{
+		RFile sourceFile;
+		CleanupClosePushL(sourceFile);
+
+		//Open the specified source file
+		err = sourceFile.Open(fsSession, sourcePath, EFileRead);
+
+		if (err != KErrNone)
+			{
+			ERR_PRINTF2(_L("*** Error: Opening Source File - %d ***"), err);
+			}
+		else
+			{
+			TInt sourceLength = 0;
+			TInt readPosition = 0;
+			TInt readIncrement = 0;
+			TBool macComplete = EFalse;
+			TBool macReInit = EFalse;
+			TPtrC8 macStr;
+
+			User::LeaveIfError(sourceFile.Size(sourceLength));
+
+			//Divide the file size into seperate incremental blocks to read
+			readIncrement = sourceLength/KDataReadBlocks;
+			
+			if (readIncrement == 0)
+				{
+				ERR_PRINTF2(_L("*** Error: Source File must be larger than %d bytes ***"), KDataReadBlocks);
+				User::LeaveIfError(KErrNotSupported);
+				}
+
+			do
+				{
+				//Create a heap based descriptor to store the data
+				HBufC8* sourceData = HBufC8::NewL(readIncrement);
+				CleanupStack::PushL(sourceData);
+				TPtr8 sourcePtr = sourceData->Des();
+
+				//Read in a block of data from the source file from the current position
+				err = sourceFile.Read(readPosition, sourcePtr, readIncrement);
+				
+				HBufC8* convertSrc = ConvertFromHexFormatToRawL(*sourceData);
+				CleanupStack::PushL(convertSrc);
+				
+				//Update the read position by adding the number of bytes read
+				readPosition += readIncrement;
+
+				if (readPosition == readIncrement)
+					{
+					//Read in the first block from the data file into the Mac implementation object
+					macImpl->MacL(*convertSrc);
+					INFO_PRINTF2(_L("Intial Mac - Bytes Read: %d"), readPosition);
+					}
+				else if (readPosition >= sourceLength)
+					{
+					//Reading in the final block, constructs the complete hash value and returns it within a TPtrC8
+					macStr.Set(macImpl->FinalL(*convertSrc));
+
+					//Sets the Complete Flag to ETrue in order to drop out of the loop
+					macComplete = ETrue;
+
+					TInt totalRead = (readPosition - readIncrement) + (*sourceData).Length();
+					INFO_PRINTF2(_L("Final Mac - Bytes Read: %d"),totalRead);
+					}
+				//If the read position is half the source length and the implementation
+				//object hasn't already been re-init
+				else if ((readPosition >= sourceLength/2) && (macReInit	== EFalse))
+					{
+					INFO_PRINTF1(_L("ReInit the Mac Object..."));
+					
+					//ReInit with the right Key to match the expected MAC
+					macImpl->ReInitialiseAndSetKeyL(*key);
+
+					//Sets the read position back to 0 in order to restart the file read from the beginning
+					readPosition = 0;
+
+					macReInit = ETrue;
+
+					INFO_PRINTF2(_L("*** MAC REINIT - Bytes Read: %d ***"), readPosition);
+					}
+				else
+					{
+					//Update the message data within the Mac object with the new block
+					macImpl->UpdateL(*convertSrc);
+					INFO_PRINTF2(_L("Mac Update - Bytes Read: %d"), readPosition);
+					}
+
+				CleanupStack::PopAndDestroy(2, sourceData);	// sourceData, convertSrc
+
+				} while (macComplete == EFalse);
+
+			//Create a NULL TCharacteristics pointer
+			const TCharacteristics* charsPtr(NULL);
+
+			//Retrieve the characteristics for the mac implementation object
+			macImpl->GetCharacteristicsL(charsPtr);
+
+			//Static cast the characteristics to type TMacCharacteristics
+			const TMacCharacteristics* macCharsPtr = static_cast<const TMacCharacteristics*>(charsPtr);
+
+			//Create buffer for encrypted data
+			TInt macSize = macCharsPtr->iCipherAlgorithmChar->iBlockSize/8;
+			HBufC8* macData = HBufC8::NewLC(macSize);
+			TPtr8 macPtr = macData->Des();
+
+			macPtr.Copy(macStr);
+
+			//Check that expected data equals the encrypted data
+			HBufC8* encryptedFileData = ReadInHexCiphertextL();
+			CleanupStack::PushL(encryptedFileData);
+			
+			if(	!macPtr.Compare(TPtrC8(*encryptedFileData)))
+				{
+				INFO_PRINTF1(_L("*** Mac - Incremental with ReInitialiseAndSetKeyL : PASS ***"));
+				SetTestStepResult(EPass);
+				}
+			else
+				{
+				ERR_PRINTF1(_L("*** FAIL: Generated Mac and Expected Mac Mismatch  ***"));
+				}
+
+			CleanupStack::PopAndDestroy(2, macData);	// macData, encryptedFileData
+			}
+
+		//Cleanup the Source RFile	
+		CleanupStack::PopAndDestroy(&sourceFile);
+		}
+
+	CleanupStack::PopAndDestroy(8, keyParams);	// keyParams, convertKey, key, tempKeyStr, tempKeyParams, tKey, macImpl, &fsSession
+		
+	INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells());
+	return TestStepResult();
+	}
+
+
+TVerdict CSymmetricMacIncrementalReInitStep::doTestStepPostambleL()
+	{
+	return TestStepResult();
+	}