|
1 /* |
|
2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of the License "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: |
|
15 * Example CTestStep derived implementation |
|
16 * |
|
17 */ |
|
18 |
|
19 |
|
20 /** |
|
21 @file |
|
22 @internalTechnology |
|
23 */ |
|
24 #include "symmetric_mac_incremental_step.h" |
|
25 #include <cryptospi/cryptomacapi.h> |
|
26 #include "keys.h" |
|
27 #include <cryptospi/plugincharacteristics.h> |
|
28 |
|
29 using namespace CryptoSpi; |
|
30 |
|
31 CSymmetricMacIncrementalStep::~CSymmetricMacIncrementalStep() |
|
32 { |
|
33 } |
|
34 |
|
35 |
|
36 CSymmetricMacIncrementalStep::CSymmetricMacIncrementalStep() |
|
37 { |
|
38 SetTestStepName(KSymmetricMacIncrementalStep); |
|
39 } |
|
40 |
|
41 |
|
42 TVerdict CSymmetricMacIncrementalStep::doTestStepPreambleL() |
|
43 { |
|
44 return EPass; |
|
45 } |
|
46 |
|
47 |
|
48 TVerdict CSymmetricMacIncrementalStep::doTestStepL() |
|
49 { |
|
50 //Assume faliure, unless all is successful |
|
51 SetTestStepResult(EFail); |
|
52 |
|
53 INFO_PRINTF1(_L("*** Symmetric Mac - Incremental ***")); |
|
54 INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells()); |
|
55 |
|
56 TPtrC keyPath; |
|
57 TPtrC sourcePath; |
|
58 TVariantPtrC algorithm; |
|
59 |
|
60 if( !GetStringFromConfig(ConfigSection(),KConfigEncryptKeyPath, keyPath) || |
|
61 !GetStringFromConfig(ConfigSection(),KConfigAlgorithmUid, algorithm) || |
|
62 !GetStringFromConfig(ConfigSection(),KConfigSourcePath, sourcePath)) |
|
63 { |
|
64 User::Leave(KErrNotFound); |
|
65 } |
|
66 |
|
67 // Create key |
|
68 TKeyProperty keyProperty; |
|
69 CCryptoParams* keyParams = CCryptoParams::NewLC(); |
|
70 |
|
71 HBufC8* convertKey = ReadInHexPlainTextL(keyPath); |
|
72 CleanupStack::PushL(convertKey); |
|
73 |
|
74 keyParams->AddL(*convertKey, KSymmetricKeyParameterUid); |
|
75 |
|
76 CKey* key=CKey::NewL(keyProperty, *keyParams); |
|
77 CleanupStack::PushL(key); |
|
78 |
|
79 // Create a Symmetric Mac with the values from the ini file |
|
80 CMac* macImpl = NULL; |
|
81 |
|
82 TRAPD(err,CMacFactory::CreateMacL(macImpl, |
|
83 algorithm, |
|
84 *key, |
|
85 NULL)); |
|
86 |
|
87 if (err != KErrNone) |
|
88 { |
|
89 CleanupStack::PopAndDestroy(3, keyParams); // keyParams, convertKey, key |
|
90 delete macImpl; |
|
91 ERR_PRINTF2(_L("*** FAIL: Failed to Create Symmetric Mac Object - %d ***"), err); |
|
92 return EFail; |
|
93 } |
|
94 |
|
95 //Push the Mac Implementation Object onto the Cleanup Stack |
|
96 CleanupStack::PushL(macImpl); |
|
97 |
|
98 RFs fsSession; |
|
99 CleanupClosePushL(fsSession); |
|
100 |
|
101 //Create a connection to the file server |
|
102 err = fsSession.Connect(); |
|
103 |
|
104 if (err != KErrNone) |
|
105 { |
|
106 ERR_PRINTF2(_L("*** Error: File Server Connection - %d ***"), err); |
|
107 } |
|
108 else |
|
109 { |
|
110 RFile sourceFile; |
|
111 CleanupClosePushL(sourceFile); |
|
112 |
|
113 //Open the specified source file |
|
114 err = sourceFile.Open(fsSession,sourcePath, EFileRead); |
|
115 |
|
116 if (err != KErrNone) |
|
117 { |
|
118 ERR_PRINTF2(_L("*** Error: Opening Source File - %d ***"), err); |
|
119 } |
|
120 else |
|
121 { |
|
122 TInt sourceLength = 0; |
|
123 TInt readPosition = 0; |
|
124 TInt readIncrement = 0; |
|
125 TBool macComplete = EFalse; |
|
126 TPtrC8 macStr; |
|
127 |
|
128 User::LeaveIfError(sourceFile.Size(sourceLength)); |
|
129 |
|
130 //Divide the total size of the source file up into individual equal sized blocks to read |
|
131 //over several increments |
|
132 readIncrement = sourceLength/KDataReadBlocks; |
|
133 |
|
134 if (readIncrement == 0) |
|
135 { |
|
136 ERR_PRINTF2(_L("*** Error: Source File must be larger than %d bytes ***"), KDataReadBlocks); |
|
137 User::LeaveIfError(KErrNotSupported); |
|
138 } |
|
139 |
|
140 do |
|
141 { |
|
142 //Create a heap based descriptor to store the data |
|
143 HBufC8* sourceData = HBufC8::NewL(readIncrement); |
|
144 CleanupStack::PushL(sourceData); |
|
145 TPtr8 sourcePtr = sourceData->Des(); |
|
146 |
|
147 //Read in a block of data from the source file from the current position |
|
148 err = sourceFile.Read(readPosition,sourcePtr,readIncrement); |
|
149 |
|
150 HBufC8* convertSrc = ConvertFromHexFormatToRawL(*sourceData); |
|
151 CleanupStack::PushL(convertSrc); |
|
152 |
|
153 //Update the read position by adding the number of bytes read |
|
154 readPosition += readIncrement; |
|
155 |
|
156 if (readPosition == readIncrement) |
|
157 { |
|
158 //Read in the first block from the data file into the Mac implementation object |
|
159 macImpl->MacL(*convertSrc); |
|
160 INFO_PRINTF2(_L("Intial Mac - Bytes Read: %d"), readPosition); |
|
161 } |
|
162 else if (readPosition >= sourceLength) |
|
163 { |
|
164 //Reading in the final block, constructs the complete mac value and returns it within a TPtrC8 |
|
165 macStr.Set(macImpl->FinalL(*convertSrc)); |
|
166 |
|
167 //Sets the Complete Flag to ETrue in order to drop out of the loop |
|
168 macComplete = ETrue; |
|
169 |
|
170 TInt totalRead = (readPosition - readIncrement) + (*sourceData).Length(); |
|
171 INFO_PRINTF2(_L("Final Mac - Bytes Read: %d"),totalRead); |
|
172 } |
|
173 else |
|
174 { |
|
175 //Update the message data within the Mac object with the new block |
|
176 macImpl->UpdateL(*convertSrc); |
|
177 INFO_PRINTF2(_L("Mac Update - Bytes Read: %d"), readPosition); |
|
178 } |
|
179 |
|
180 CleanupStack::PopAndDestroy(2, sourceData); // sourceData, convertSrc |
|
181 }while(macComplete == EFalse); |
|
182 |
|
183 //Create a NULL TCharacteristics pointer |
|
184 const TCharacteristics* charsPtr(NULL); |
|
185 |
|
186 //Retrieve the characteristics for the mac implementation object |
|
187 TRAP_LOG(err, macImpl->GetCharacteristicsL(charsPtr)); |
|
188 |
|
189 //Static cast the characteristics to type TMacCharacteristics |
|
190 const TMacCharacteristics* macCharsPtr = static_cast<const TMacCharacteristics*>(charsPtr); |
|
191 |
|
192 //Create buffer for encrypted data |
|
193 TInt macSize = macCharsPtr->iCipherAlgorithmChar->iBlockSize/8; |
|
194 HBufC8* macData = HBufC8::NewLC(macSize); |
|
195 TPtr8 macPtr = macData->Des(); |
|
196 |
|
197 macPtr.Copy(macStr); |
|
198 |
|
199 //Check that expected data equals the encrypted data |
|
200 HBufC8* encryptedFileData = ReadInHexCiphertextL(); |
|
201 CleanupStack::PushL(encryptedFileData); |
|
202 |
|
203 if( !macPtr.Compare(TPtrC8(*encryptedFileData))) |
|
204 { |
|
205 INFO_PRINTF1(_L("*** Symmetric Mac - Incremental : PASS ***")); |
|
206 SetTestStepResult(EPass); |
|
207 } |
|
208 else |
|
209 { |
|
210 ERR_PRINTF2(_L("*** FAIL: Generated Mac and Expected Mac Mismatch ***"), err); |
|
211 } |
|
212 |
|
213 CleanupStack::PopAndDestroy(2, macData); // macData, encryptedFileData |
|
214 } |
|
215 |
|
216 //Cleanup the Source RFile |
|
217 CleanupStack::PopAndDestroy(); |
|
218 } |
|
219 |
|
220 CleanupStack::PopAndDestroy(5, keyParams); // keyParams, convertKey, key, macImpl, &fsSessio |
|
221 |
|
222 INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells()); |
|
223 return TestStepResult(); |
|
224 } |
|
225 |
|
226 |
|
227 TVerdict CSymmetricMacIncrementalStep::doTestStepPostambleL() |
|
228 { |
|
229 return TestStepResult(); |
|
230 } |