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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/** |
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@file |
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@internalTechnology |
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*/ |
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#include "mac_incremental_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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|
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using namespace CryptoSpi; |
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CMacIncrementalStep::~CMacIncrementalStep() |
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{ |
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} |
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CMacIncrementalStep::CMacIncrementalStep() |
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{ |
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SetTestStepName(KMacIncrementalStep); |
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} |
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TVerdict CMacIncrementalStep::doTestStepPreambleL() |
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{ |
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return EPass; |
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} |
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TVerdict CMacIncrementalStep::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("*** Mac - Incremental ***")); |
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INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells()); |
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TVariantPtrC algorithmUid; |
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TPtrC sourcePath; |
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TPtrC expectedMac; |
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TPtrC encryptKey; |
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TVariantPtrC keyType; |
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//Extract the Test Case ID parameter from the specified INI file |
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if (!GetStringFromConfig(ConfigSection(),KConfigAlgorithmUid,algorithmUid) || |
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!GetStringFromConfig(ConfigSection(),KConfigSourcePath,sourcePath) || |
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!GetStringFromConfig(ConfigSection(),KConfigExMacValue,expectedMac) || |
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!GetStringFromConfig(ConfigSection(),KConfigEncryptKey,encryptKey) || |
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!GetStringFromConfig(ConfigSection(),KConfigEncryptKeyType,keyType)) |
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{ |
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ERR_PRINTF1(_L("** Error: Failed to Load Configuration Parameters **")); |
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return EFail; |
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} |
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//Create a pointer for the Mac + Key Implementation Object |
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CMac* macImpl = NULL; |
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//Convert encryption key to an 8 Bit Descriptor |
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HBufC8* keyStr = HBufC8::NewLC(encryptKey.Length()); |
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TPtr8 keyStrPtr = keyStr->Des(); |
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keyStrPtr.Copy(encryptKey); |
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//Create an new CryptoParams object to encapsulate the key type and secret key string |
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CCryptoParams* keyParams = CCryptoParams::NewL(); |
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CleanupStack::PushL(keyParams); |
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keyParams->AddL(*keyStr,keyType); |
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|
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//Create Key Object |
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TKeyProperty keyProperty; |
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CKey* key=CKey::NewL(keyProperty,*keyParams); |
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CleanupStack::PushL(key); |
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|
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//Retrieve a Mac Factory Object |
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TRAPD(err,CMacFactory::CreateMacL(macImpl, |
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algorithmUid, |
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*key, |
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NULL)); |
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if (err != KErrNone) |
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{ |
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CleanupStack::PopAndDestroy(3, keyStr); // keyStr, keyParams, key |
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delete macImpl; |
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ERR_PRINTF2(_L("*** FAIL: Failed to Create Mac Object - %d ***"), err); |
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return EFail; |
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} |
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|
105 |
|
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106 |
//Push the Mac Implementation Object onto the Cleanup Stack |
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107 |
CleanupStack::PushL(macImpl); |
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|
108 |
|
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109 |
RFs fsSession; |
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110 |
User::LeaveIfError(fsSession.Connect()); |
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111 |
CleanupClosePushL(fsSession); |
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|
112 |
|
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113 |
RFile sourceFile; |
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114 |
CleanupClosePushL(sourceFile); |
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|
115 |
|
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116 |
//Open the specified source file |
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117 |
User::LeaveIfError(sourceFile.Open(fsSession,sourcePath, EFileRead)); |
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118 |
|
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119 |
TInt sourceLength = 0; |
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120 |
TInt readPosition = 0; |
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121 |
TInt readIncrement = 0; |
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122 |
TBool macComplete = EFalse; |
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TPtrC8 macStr; |
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124 |
|
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125 |
User::LeaveIfError(sourceFile.Size(sourceLength)); |
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126 |
|
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127 |
//Divide the total size of the source file up into individual equal sized blocks to read |
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//over several increments |
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readIncrement = sourceLength/KDataReadBlocks; |
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130 |
|
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131 |
if (readIncrement == 0) |
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132 |
{ |
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133 |
ERR_PRINTF2(_L("*** Error: Source File must be larger than %d bytes ***"), KDataReadBlocks); |
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134 |
User::LeaveIfError(KErrNotSupported); |
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135 |
} |
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136 |
|
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137 |
do |
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138 |
{ |
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139 |
//Create a heap based descriptor to store the data |
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140 |
HBufC8* sourceData = HBufC8::NewL(readIncrement); |
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141 |
CleanupStack::PushL(sourceData); |
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142 |
TPtr8 sourcePtr = sourceData->Des(); |
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143 |
|
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144 |
//Read in a block of data from the source file from the current position |
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145 |
err = sourceFile.Read(readPosition,sourcePtr,readIncrement); |
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146 |
|
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147 |
//Update the read position by adding the number of bytes read |
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148 |
readPosition += readIncrement; |
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|
149 |
|
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150 |
if (readPosition == readIncrement) |
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151 |
{ |
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152 |
//Read in the first block from the data file into the Mac implementation object |
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153 |
macImpl->MacL(*sourceData); |
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154 |
INFO_PRINTF2(_L("Intial Mac - Bytes Read: %d"), readPosition); |
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155 |
} |
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156 |
else if (readPosition >= sourceLength) |
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157 |
{ |
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158 |
//Reading in the final block, constructs the complete mac value and returns it within a TPtrC8 |
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159 |
macStr.Set(macImpl->FinalL(*sourceData)); |
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|
160 |
|
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161 |
//Sets the Complete Flag to ETrue in order to drop out of the loop |
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162 |
macComplete = ETrue; |
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|
163 |
|
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164 |
TInt totalRead = (readPosition - readIncrement) + (*sourceData).Length(); |
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|
165 |
INFO_PRINTF2(_L("Final Mac - Bytes Read: %d"),totalRead); |
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|
166 |
} |
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167 |
else |
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|
168 |
{ |
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169 |
//Update the message data within the Mac object with the new block |
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|
170 |
macImpl->UpdateL(*sourceData); |
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|
171 |
INFO_PRINTF2(_L("Mac Update - Bytes Read: %d"), readPosition); |
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|
172 |
} |
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|
173 |
|
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|
174 |
CleanupStack::PopAndDestroy(sourceData); |
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|
175 |
|
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|
176 |
}while(macComplete == EFalse); |
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|
177 |
|
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|
178 |
//Create a NULL TCharacteristics pointer |
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|
179 |
const TCharacteristics* charsPtr(NULL); |
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|
180 |
|
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181 |
//Retrieve the characteristics for the mac implementation object |
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|
182 |
TRAP_LOG(err, macImpl->GetCharacteristicsL(charsPtr)); |
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|
183 |
|
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184 |
//Static cast the characteristics to type TMacCharacteristics |
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185 |
const TMacCharacteristics* macCharsPtr = static_cast<const TMacCharacteristics*>(charsPtr); |
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|
186 |
|
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187 |
//The mac output size is returned in Bits, divide by 8 to get the Byte size |
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188 |
TInt macSize = macCharsPtr->iHashAlgorithmChar->iOutputSize/8; |
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|
189 |
|
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|
190 |
//Retrieve the final 8 bit mac value and convert to 16bit |
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|
191 |
HBufC* macData = HBufC::NewLC(macSize); |
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|
192 |
TPtr macPtr = macData->Des(); |
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|
193 |
|
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|
194 |
macPtr.Copy(macStr); |
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|
195 |
|
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|
196 |
//Take the 16 bit descriptor and convert the string to hexadecimal |
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|
197 |
TVariantPtrC convertMac; |
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|
198 |
convertMac.Set(macPtr); |
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|
199 |
HBufC* macResult = convertMac.HexStringLC(); |
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|
200 |
|
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|
201 |
INFO_PRINTF2(_L("*** Mac Data: %S ***"),&*macResult); |
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|
202 |
INFO_PRINTF2(_L("*** Expected Mac: %S ***"),&expectedMac); |
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|
203 |
|
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|
204 |
//If the returned mac value matches the expected mac, Pass the test |
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|
205 |
if (*macResult == expectedMac) |
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|
206 |
{ |
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|
207 |
INFO_PRINTF1(_L("*** Mac - Incremental Hash : PASS ***")); |
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|
208 |
SetTestStepResult(EPass); |
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} |
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else |
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{ |
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ERR_PRINTF2(_L("*** FAIL: Generated Mac and Expected Mac Mismatch ***"), err); |
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} |
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CleanupStack::PopAndDestroy(8, keyStr); // keyStr, keyParams, key, macImpl, &fsSession, &sourceFile, macData, macResult |
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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 CMacIncrementalStep::doTestStepPostambleL() |
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{ |
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return TestStepResult(); |
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} |