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1 /* |
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2 * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the License "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * Example CTestStep derived implementation |
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16 * |
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17 */ |
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18 |
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19 |
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20 /** |
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21 @file |
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22 @internalTechnology |
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23 */ |
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24 #include "hmacincrementalhmacstep.h" |
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25 |
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26 #include <cryptospi/cryptohashapi.h> |
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27 #include "keys.h" |
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28 #include <cryptospi/plugincharacteristics.h> |
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29 |
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30 using namespace CryptoSpi; |
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31 |
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32 CHmacIncrementalHmacStep::~CHmacIncrementalHmacStep() |
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33 { |
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34 } |
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35 |
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36 |
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37 CHmacIncrementalHmacStep::CHmacIncrementalHmacStep() |
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38 { |
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39 SetTestStepName(KHmacIncrementalHmacStep); |
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40 } |
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41 |
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42 |
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43 TVerdict CHmacIncrementalHmacStep::doTestStepPreambleL() |
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44 { |
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45 SetTestStepResult(EPass); |
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46 return TestStepResult(); |
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47 } |
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48 |
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49 |
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50 TVerdict CHmacIncrementalHmacStep::doTestStepL() |
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51 { |
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52 if (TestStepResult()==EPass) |
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53 { |
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54 //Assume faliure, unless all is successful |
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55 SetTestStepResult(EFail); |
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56 |
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57 INFO_PRINTF1(_L("*** Hmac - Incremental Hash ***")); |
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58 INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells()); |
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59 |
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60 TVariantPtrC algorithmUid; |
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61 TVariantPtrC operationModeUid; |
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62 TPtrC sourcePath; |
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63 TPtrC expectedHash; |
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64 TPtrC encryptKey; |
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65 TVariantPtrC keyType; |
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66 |
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67 //Extract the Test Case ID parameter from the specified INI file |
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68 if(!GetStringFromConfig(ConfigSection(),KConfigAlgorithmUid,algorithmUid) || |
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69 !GetStringFromConfig(ConfigSection(),KConfigOperationMode,operationModeUid) || |
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70 !GetStringFromConfig(ConfigSection(),KConfigSourcePath,sourcePath) || |
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71 !GetStringFromConfig(ConfigSection(),KConfigExHashHmacValue,expectedHash) || |
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72 !GetStringFromConfig(ConfigSection(),KConfigEncryptKey,encryptKey) || |
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73 !GetStringFromConfig(ConfigSection(),KConfigEncryptKeyType,keyType)) |
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74 { |
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75 ERR_PRINTF1(_L("** Error: Failed to Load Configuration Parameters **")); |
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76 SetTestStepResult(EFail); |
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77 } |
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78 else |
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79 { |
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80 //Create a pointer for the Hash + Key (Hamc) Implementation Object |
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81 CHash* hmacImpl = NULL; |
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82 |
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83 //Convert encryption key to an 8 Bit Descriptor |
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84 HBufC8* keyStr = HBufC8::NewLC(encryptKey.Length()); |
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85 TPtr8 keyStrPtr = keyStr->Des(); |
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86 |
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87 keyStrPtr.Copy(encryptKey); |
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88 |
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89 //Create an new CryptoParams object to encapsulate the key type and secret key string |
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90 CCryptoParams* keyParams = CCryptoParams::NewL(); |
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91 CleanupStack::PushL(keyParams); |
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92 keyParams->AddL(*keyStr,keyType); |
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93 |
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94 //Create Key Object |
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95 TKeyProperty keyProperty; |
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96 CKey* key=CKey::NewL(keyProperty,*keyParams); |
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97 CleanupStack::PushL(key); |
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98 |
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99 //Retrieve a Hmac Factory Object |
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100 TRAPD(err,CHashFactory::CreateHashL(hmacImpl, |
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101 algorithmUid, |
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102 operationModeUid, |
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103 key, |
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104 NULL)); |
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105 |
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106 if(hmacImpl && (err == KErrNone)) |
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107 { |
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108 |
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109 //Push the Hmac Implementation Object onto the Cleanup Stack |
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110 CleanupStack::PushL(hmacImpl); |
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111 |
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112 RFs fsSession; |
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113 |
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114 //Create a connection to the file server |
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115 err = fsSession.Connect(); |
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116 |
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117 if(err != KErrNone) |
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118 { |
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119 ERR_PRINTF2(_L("*** Error: File Server Connection - %d ***"), err); |
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120 SetTestStepResult(EFail); |
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121 } |
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122 else |
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123 { |
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124 RFile sourceFile; |
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125 CleanupClosePushL(sourceFile); |
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126 |
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127 //Open the specified source file |
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128 err = sourceFile.Open(fsSession,sourcePath, EFileRead); |
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129 |
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130 if(err != KErrNone) |
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131 { |
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132 ERR_PRINTF2(_L("*** Error: Opening Source File - %d ***"), err); |
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133 SetTestStepResult(EFail); |
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134 } |
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135 else |
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136 { |
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137 |
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138 TInt sourceLength = 0; |
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139 TInt readPosition = 0; |
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140 TInt readIncrement = 0; |
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141 TBool hashComplete = EFalse; |
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142 TPtrC8 hashStr; |
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143 |
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144 User::LeaveIfError(sourceFile.Size(sourceLength)); |
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145 |
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146 //Divide the total size of the source file up into individual equal sized blocks to read |
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147 //over several increments |
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148 readIncrement = sourceLength/KDataReadBlocks; |
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149 |
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150 do |
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151 { |
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152 //Create a heap based descriptor to store the data |
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153 HBufC8* sourceData = HBufC8::NewL(readIncrement); |
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154 CleanupStack::PushL(sourceData); |
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155 TPtr8 sourcePtr = sourceData->Des(); |
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156 |
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157 //Read in a block of data from the source file from the current position |
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158 err = sourceFile.Read(readPosition,sourcePtr,readIncrement); |
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159 |
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160 //Update the read position by adding the number of bytes read |
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161 readPosition += readIncrement; |
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162 |
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163 if(readPosition == readIncrement) |
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164 { |
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165 //Read in the first block from the data file into the Hmac implementation object |
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166 hmacImpl->Hash(*sourceData); |
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167 INFO_PRINTF2(_L("Intial Hmac - Bytes Read: %d"), readPosition); |
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168 } |
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169 else if(readPosition >= sourceLength) |
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170 { |
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171 //Reading in the final block, constructs the complete hash value and returns it within a TPtrC8 |
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172 hashStr.Set(hmacImpl->Final(*sourceData)); |
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173 |
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174 //Sets the Complete Flag to ETrue in order to drop out of the loop |
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175 hashComplete = ETrue; |
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176 |
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177 TInt totalRead = (readPosition - readIncrement) + (*sourceData).Length(); |
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178 INFO_PRINTF2(_L("Final Hmac - Bytes Read: %d"),totalRead); |
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179 } |
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180 else |
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181 { |
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182 //Update the message data within the Hmac object with the new block |
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183 hmacImpl->Update(*sourceData); |
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184 INFO_PRINTF2(_L("Hmac Update - Bytes Read: %d"), readPosition); |
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185 } |
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186 |
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187 CleanupStack::PopAndDestroy(sourceData); |
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188 |
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189 }while(hashComplete == EFalse); |
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190 |
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191 //Create a NULL TCharacteristics pointer |
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192 const TCharacteristics* charsPtr(NULL); |
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193 |
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194 //Retrieve the characteristics for the hash implementation object |
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195 TRAP_LOG(err, hmacImpl->GetCharacteristicsL(charsPtr)); |
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196 |
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197 //Static cast the characteristics to type THashCharacteristics |
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198 const THashCharacteristics* hashCharsPtr = static_cast<const THashCharacteristics*>(charsPtr); |
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199 |
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200 //The hash output size is returned in Bits, divide by 8 to get the Byte size |
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201 TInt hashSize = hashCharsPtr->iOutputSize/8; |
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202 |
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203 //Retrieve the final 8bit hash value and convert to 16bit |
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204 HBufC* hashData = HBufC::NewLC(hashSize); |
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205 TPtr hashPtr = hashData->Des(); |
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206 |
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207 hashPtr.Copy(hashStr); |
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208 |
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209 //Take the 16bit descriptor and convert the string to hexadecimal |
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210 TVariantPtrC convertHash; |
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211 convertHash.Set(hashPtr); |
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212 HBufC* hmacResult = convertHash.HexStringLC(); |
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213 |
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214 INFO_PRINTF2(_L("*** Hashed Data: %S ***"),&*hmacResult); |
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215 INFO_PRINTF2(_L("*** Expected Hash: %S ***"),&expectedHash); |
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216 |
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217 //If the returned hash value matches the expected hash, Pass the test |
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218 if(*hmacResult == expectedHash) |
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219 { |
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220 INFO_PRINTF1(_L("*** Hmac - Incremental Hash : PASS ***")); |
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221 SetTestStepResult(EPass); |
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222 } |
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223 else |
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224 { |
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225 ERR_PRINTF2(_L("*** FAIL: Hashed and Expected Value Mismatch ***"), err); |
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226 SetTestStepResult(EFail); |
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227 } |
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228 |
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229 CleanupStack::PopAndDestroy(hmacResult); |
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230 CleanupStack::PopAndDestroy(hashData); |
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231 } |
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232 |
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233 //Cleanup the Source RFile |
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234 CleanupStack::PopAndDestroy(); |
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235 } |
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236 |
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237 fsSession.Close(); |
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238 |
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239 CleanupStack::PopAndDestroy(hmacImpl); |
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240 } |
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241 else |
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242 { |
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243 ERR_PRINTF2(_L("*** FAIL: Failed to Create Hmac Object - %d ***"), err); |
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244 SetTestStepResult(EFail); |
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245 } |
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246 |
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247 CleanupStack::PopAndDestroy(key); |
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248 CleanupStack::PopAndDestroy(keyParams); |
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249 CleanupStack::PopAndDestroy(keyStr); |
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250 } |
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251 } |
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252 |
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253 INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells()); |
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254 return TestStepResult(); |
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255 } |
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256 |
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257 |
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258 TVerdict CHmacIncrementalHmacStep::doTestStepPostambleL() |
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259 { |
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260 return TestStepResult(); |
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261 } |