author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 15 Mar 2010 12:46:43 +0200 | |
branch | RCL_3 |
changeset 43 | 2f10d260163b |
parent 8 | 35751d3474b7 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008-2010 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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* Example CTestStep derived implementation |
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* |
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*/ |
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|
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/** |
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@file |
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@internalTechnology |
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*/ |
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#include "symmetric_mac_incremental_re_init_step.h" |
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#include <cryptospi/cryptomacapi.h> |
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#include <cryptospi/keys.h> |
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#include <cryptospi/plugincharacteristics.h> |
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using namespace CryptoSpi; |
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CSymmetricMacIncrementalReInitStep::~CSymmetricMacIncrementalReInitStep() |
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{ |
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} |
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CSymmetricMacIncrementalReInitStep::CSymmetricMacIncrementalReInitStep() |
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{ |
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SetTestStepName(KSymmetricMacIncrementalReInitStep); |
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} |
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TVerdict CSymmetricMacIncrementalReInitStep::doTestStepPreambleL() |
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{ |
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return EPass; |
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} |
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TVerdict CSymmetricMacIncrementalReInitStep::doTestStepL() |
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{ |
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//Assume faliure, unless all is successful |
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SetTestStepResult(EFail); |
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INFO_PRINTF1(_L("*** Symmetric Mac - Incremental with ReInitialiseAndSetKeyL ***")); |
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INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells()); |
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TPtrC keyPath; |
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TPtrC tempKey; |
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TPtrC sourcePath; |
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TVariantPtrC algorithm; |
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if( !GetStringFromConfig(ConfigSection(),KConfigEncryptKeyPath, keyPath) || |
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!GetStringFromConfig(ConfigSection(),KConfigEncryptKey, tempKey) || |
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!GetStringFromConfig(ConfigSection(),KConfigAlgorithmUid, algorithm) || |
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!GetStringFromConfig(ConfigSection(),KConfigSourcePath, sourcePath)) |
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{ |
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User::Leave(KErrNotFound); |
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} |
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// Create key |
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TKeyProperty keyProperty; |
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CCryptoParams* keyParams = CCryptoParams::NewLC(); |
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HBufC8* convertKey = ReadInHexPlainTextL(keyPath); |
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CleanupStack::PushL(convertKey); |
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keyParams->AddL(*convertKey, KSymmetricKeyParameterUid); |
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CKey* key=CKey::NewL(keyProperty, *keyParams); |
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CleanupStack::PushL(key); |
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//Convert tempKey to an 8 Bit Descriptor |
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HBufC8* tempKeyStr = HBufC8::NewLC(tempKey.Length()); |
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TPtr8 tempKeyStrPtr = tempKeyStr->Des(); |
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tempKeyStrPtr.Copy(tempKey); |
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CCryptoParams* tempKeyParams = CCryptoParams::NewLC(); |
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tempKeyParams->AddL(*tempKeyStr, KSymmetricKeyParameterUid); |
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CKey* tKey=CKey::NewL(keyProperty,*tempKeyParams); |
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CleanupStack::PushL(tKey); |
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//Create a pointer for the Hmac Implementation Object |
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CMac* macImpl= NULL; |
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//Retrieve a Mac Factory Object |
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TRAPD(err,CMacFactory::CreateMacL(macImpl, |
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algorithm, |
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*tKey, |
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NULL)); |
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if (err != KErrNone) |
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{ |
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105 |
CleanupStack::PopAndDestroy(6, keyParams); // keyParams, convertKey, key, tempKeyStr, tempKeyParams, tKey |
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106 |
delete macImpl; |
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107 |
ERR_PRINTF2(_L("*** FAIL: Failed to Create Symmetric Mac Object - %d ***"), err); |
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|
108 |
return EFail; |
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109 |
} |
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|
110 |
|
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111 |
INFO_PRINTF1(_L("Plugin loaded.")); |
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112 |
|
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113 |
//Push the Mac Implementation Object onto the Cleanup Stack |
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114 |
CleanupStack::PushL(macImpl); |
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115 |
|
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116 |
RFs fsSession; |
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117 |
CleanupClosePushL(fsSession); |
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118 |
|
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119 |
//Create a connection to the file server |
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120 |
err = fsSession.Connect(); |
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121 |
|
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122 |
if (err != KErrNone) |
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123 |
{ |
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124 |
ERR_PRINTF2(_L("*** Error: File Server Connection - %d ***"), err); |
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125 |
} |
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126 |
else |
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127 |
{ |
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128 |
RFile sourceFile; |
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129 |
CleanupClosePushL(sourceFile); |
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130 |
|
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131 |
//Open the specified source file |
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132 |
err = sourceFile.Open(fsSession, sourcePath, EFileRead); |
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133 |
|
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134 |
if (err != KErrNone) |
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135 |
{ |
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136 |
ERR_PRINTF2(_L("*** Error: Opening Source File - %d ***"), err); |
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137 |
} |
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138 |
else |
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139 |
{ |
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140 |
TInt sourceLength = 0; |
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141 |
TInt readPosition = 0; |
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142 |
TInt readIncrement = 0; |
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143 |
TBool macComplete = EFalse; |
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144 |
TBool macReInit = EFalse; |
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145 |
TPtrC8 macStr; |
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146 |
|
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147 |
User::LeaveIfError(sourceFile.Size(sourceLength)); |
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|
148 |
|
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149 |
//Divide the file size into seperate incremental blocks to read |
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150 |
readIncrement = sourceLength/KDataReadBlocks; |
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|
151 |
|
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152 |
if (readIncrement == 0) |
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153 |
{ |
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154 |
ERR_PRINTF2(_L("*** Error: Source File must be larger than %d bytes ***"), KDataReadBlocks); |
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155 |
User::LeaveIfError(KErrNotSupported); |
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156 |
} |
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|
157 |
|
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158 |
do |
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159 |
{ |
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160 |
//Create a heap based descriptor to store the data |
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161 |
HBufC8* sourceData = HBufC8::NewL(readIncrement); |
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162 |
CleanupStack::PushL(sourceData); |
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163 |
TPtr8 sourcePtr = sourceData->Des(); |
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|
164 |
|
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165 |
//Read in a block of data from the source file from the current position |
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|
166 |
err = sourceFile.Read(readPosition, sourcePtr, readIncrement); |
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|
167 |
|
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|
168 |
HBufC8* convertSrc = ConvertFromHexFormatToRawL(*sourceData); |
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|
169 |
CleanupStack::PushL(convertSrc); |
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|
170 |
|
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171 |
//Update the read position by adding the number of bytes read |
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|
172 |
readPosition += readIncrement; |
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|
173 |
|
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|
174 |
if (readPosition == readIncrement) |
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|
175 |
{ |
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176 |
//Read in the first block from the data file into the Mac implementation object |
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|
177 |
macImpl->MacL(*convertSrc); |
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|
178 |
INFO_PRINTF2(_L("Intial Mac - Bytes Read: %d"), readPosition); |
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|
179 |
} |
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|
180 |
else if (readPosition >= sourceLength) |
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|
181 |
{ |
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182 |
//Reading in the final block, constructs the complete hash value and returns it within a TPtrC8 |
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|
183 |
macStr.Set(macImpl->FinalL(*convertSrc)); |
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|
184 |
|
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185 |
//Sets the Complete Flag to ETrue in order to drop out of the loop |
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186 |
macComplete = ETrue; |
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|
187 |
|
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|
188 |
TInt totalRead = (readPosition - readIncrement) + (*sourceData).Length(); |
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|
189 |
INFO_PRINTF2(_L("Final Mac - Bytes Read: %d"),totalRead); |
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|
190 |
} |
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191 |
//If the read position is half the source length and the implementation |
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|
192 |
//object hasn't already been re-init |
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193 |
else if ((readPosition >= sourceLength/2) && (macReInit == EFalse)) |
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|
194 |
{ |
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|
195 |
INFO_PRINTF1(_L("ReInit the Mac Object...")); |
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|
196 |
|
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|
197 |
//ReInit with the right Key to match the expected MAC |
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|
198 |
macImpl->ReInitialiseAndSetKeyL(*key); |
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|
199 |
|
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|
200 |
//Sets the read position back to 0 in order to restart the file read from the beginning |
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|
201 |
readPosition = 0; |
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|
202 |
|
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|
203 |
macReInit = ETrue; |
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|
204 |
|
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|
205 |
INFO_PRINTF2(_L("*** MAC REINIT - Bytes Read: %d ***"), readPosition); |
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|
206 |
} |
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|
207 |
else |
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|
208 |
{ |
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|
209 |
//Update the message data within the Mac object with the new block |
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macImpl->UpdateL(*convertSrc); |
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INFO_PRINTF2(_L("Mac Update - Bytes Read: %d"), readPosition); |
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} |
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CleanupStack::PopAndDestroy(2, sourceData); // sourceData, convertSrc |
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} while (macComplete == EFalse); |
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//Create a NULL TCharacteristics pointer |
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const TCharacteristics* charsPtr(NULL); |
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//Retrieve the characteristics for the mac implementation object |
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macImpl->GetCharacteristicsL(charsPtr); |
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//Static cast the characteristics to type TMacCharacteristics |
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const TMacCharacteristics* macCharsPtr = static_cast<const TMacCharacteristics*>(charsPtr); |
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//Create buffer for encrypted data |
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TInt macSize = macCharsPtr->iCipherAlgorithmChar->iBlockSize/8; |
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HBufC8* macData = HBufC8::NewLC(macSize); |
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TPtr8 macPtr = macData->Des(); |
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macPtr.Copy(macStr); |
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//Check that expected data equals the encrypted data |
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HBufC8* encryptedFileData = ReadInHexCiphertextL(); |
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CleanupStack::PushL(encryptedFileData); |
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if( !macPtr.Compare(TPtrC8(*encryptedFileData))) |
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{ |
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INFO_PRINTF1(_L("*** Mac - Incremental with ReInitialiseAndSetKeyL : PASS ***")); |
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SetTestStepResult(EPass); |
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} |
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else |
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{ |
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ERR_PRINTF1(_L("*** FAIL: Generated Mac and Expected Mac Mismatch ***")); |
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} |
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|
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CleanupStack::PopAndDestroy(2, macData); // macData, encryptedFileData |
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} |
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|
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//Cleanup the Source RFile |
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CleanupStack::PopAndDestroy(&sourceFile); |
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} |
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CleanupStack::PopAndDestroy(8, keyParams); // keyParams, convertKey, key, tempKeyStr, tempKeyParams, tKey, macImpl, &fsSession |
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INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells()); |
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return TestStepResult(); |
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} |
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TVerdict CSymmetricMacIncrementalReInitStep::doTestStepPostambleL() |
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{ |
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return TestStepResult(); |
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} |