1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/security/crypto/weakcryptospi/test/tcryptospi/src/hash_incremental_step.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,236 @@
1.4 +/*
1.5 +* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
1.6 +* All rights reserved.
1.7 +* This component and the accompanying materials are made available
1.8 +* under the terms of the License "Eclipse Public License v1.0"
1.9 +* which accompanies this distribution, and is available
1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.11 +*
1.12 +* Initial Contributors:
1.13 +* Nokia Corporation - initial contribution.
1.14 +*
1.15 +* Contributors:
1.16 +*
1.17 +* Description:
1.18 +* Example CTestStep derived implementation
1.19 +*
1.20 +*/
1.21 +
1.22 +
1.23 +/**
1.24 + @file
1.25 + @internalTechnology
1.26 +*/
1.27 +#include "hash_incremental_step.h"
1.28 +#include <cryptospi/cryptohashapi.h>
1.29 +#include <cryptospi/plugincharacteristics.h>
1.30 +
1.31 +using namespace CryptoSpi;
1.32 +
1.33 +CHashIncrementalStep::~CHashIncrementalStep()
1.34 + {
1.35 + }
1.36 +
1.37 +
1.38 +CHashIncrementalStep::CHashIncrementalStep()
1.39 + {
1.40 + SetTestStepName(KHashIncrementalStep);
1.41 + }
1.42 +
1.43 +
1.44 +TVerdict CHashIncrementalStep::doTestStepPreambleL()
1.45 + {
1.46 + return EPass;
1.47 + }
1.48 +
1.49 +
1.50 +TVerdict CHashIncrementalStep::doTestStepL()
1.51 + {
1.52 + //Assume faliure, unless all is successful
1.53 + SetTestStepResult(EFail);
1.54 +
1.55 + INFO_PRINTF1(_L("*** Hash - Incremental ***"));
1.56 + INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells());
1.57 +
1.58 + TVariantPtrC algorithmUid;
1.59 + TPtrC sourcePath;
1.60 + TPtrC expectedHash;
1.61 +
1.62 + //Extract the Test Case ID parameter from the specified INI file
1.63 + if(!GetStringFromConfig(ConfigSection(),KConfigAlgorithmUid,algorithmUid) ||
1.64 + !GetStringFromConfig(ConfigSection(),KConfigSourcePath,sourcePath) ||
1.65 + !GetStringFromConfig(ConfigSection(),KConfigExHashHmacValue,expectedHash))
1.66 + {
1.67 + ERR_PRINTF1(_L("** Error: Failed to Load Configuration Parameters **"));
1.68 + SetTestStepResult(EFail);
1.69 + }
1.70 + else
1.71 + {
1.72 + //Create a pointer for the Hash Implementation Object
1.73 + CHash* hashImpl = NULL;
1.74 +
1.75 + //Retrieve a Hash Factory Object
1.76 + TRAPD(err,CHashFactory::CreateHashL(hashImpl,
1.77 + algorithmUid,
1.78 + NULL));
1.79 +
1.80 + if(err==KErrNone)
1.81 + {
1.82 +
1.83 + //Push the Hash Implementation Object onto the Cleanup Stack
1.84 + CleanupStack::PushL(hashImpl);
1.85 +
1.86 + RFs fsSession;
1.87 + CleanupClosePushL(fsSession);
1.88 +
1.89 + //Create a connection to the file server
1.90 + err = fsSession.Connect();
1.91 +
1.92 + if(err != KErrNone)
1.93 + {
1.94 + ERR_PRINTF2(_L("*** Error: File Server Connection - %d ***"), err);
1.95 + SetTestStepResult(EFail);
1.96 + }
1.97 + else
1.98 + {
1.99 + RFile sourceFile;
1.100 + CleanupClosePushL(sourceFile);
1.101 +
1.102 + //Open the specified source file
1.103 + err = sourceFile.Open(fsSession,sourcePath, EFileRead);
1.104 +
1.105 + if(err != KErrNone)
1.106 + {
1.107 + ERR_PRINTF2(_L("*** Error: Opening Source File - %d ***"), err);
1.108 + SetTestStepResult(EFail);
1.109 + }
1.110 + else
1.111 + {
1.112 +
1.113 + TInt sourceLength = 0;
1.114 + TInt readPosition = 0;
1.115 + TInt readIncrement = 0;
1.116 + TBool hashComplete = EFalse;
1.117 + TPtrC8 hashStr;
1.118 +
1.119 + User::LeaveIfError(sourceFile.Size(sourceLength));
1.120 +
1.121 + //Divide the total size of the source file up into individual equal sized blocks to read
1.122 + //over several increments
1.123 + readIncrement = sourceLength/KDataReadBlocks;
1.124 +
1.125 + if (readIncrement == 0)
1.126 + {
1.127 + ERR_PRINTF2(_L("*** Error: Source File must be larger than %d bytes ***"), KDataReadBlocks);
1.128 + User::LeaveIfError(KErrNotSupported);
1.129 + }
1.130 +
1.131 + do
1.132 + {
1.133 + //Create a heap based descriptor to store the data
1.134 + HBufC8* sourceData = HBufC8::NewL(readIncrement);
1.135 + CleanupStack::PushL(sourceData);
1.136 + TPtr8 sourcePtr = sourceData->Des();
1.137 +
1.138 + //Read in a block of data from the source file from the current position
1.139 + User::LeaveIfError(sourceFile.Read(readPosition,sourcePtr,readIncrement));
1.140 +
1.141 + //Update the read position by adding the number of bytes read
1.142 + readPosition += readIncrement;
1.143 +
1.144 + if(readPosition == readIncrement)
1.145 + {
1.146 + //Read in the first block from the data file into the Hash implementation object
1.147 + hashImpl->Hash(*sourceData);
1.148 + INFO_PRINTF2(_L("Intial Hash - Bytes Read: %d"), readPosition);
1.149 + }
1.150 + else if(readPosition >= sourceLength)
1.151 + {
1.152 + //Reading in the final block, constructs the complete hash value and returns it within a TPtrC8
1.153 + hashStr.Set(hashImpl->Final(*sourceData));
1.154 +
1.155 + //Sets the Complete Flag to ETrue in order to drop out of the loop
1.156 + hashComplete = ETrue;
1.157 +
1.158 + TInt totalRead = (readPosition - readIncrement) + (*sourceData).Length();
1.159 + INFO_PRINTF2(_L("Final Hash - Bytes Read: %d"),totalRead);
1.160 + }
1.161 + else
1.162 + {
1.163 + //Update the message data within the Hash object with the new block
1.164 + hashImpl->Update(*sourceData);
1.165 + INFO_PRINTF2(_L("Hash Update - Bytes Read: %d"), readPosition);
1.166 + }
1.167 +
1.168 + CleanupStack::PopAndDestroy(sourceData);
1.169 +
1.170 + }while(hashComplete == EFalse);
1.171 +
1.172 + //Create a NULL TCharacteristics pointer
1.173 + const TCharacteristics* charsPtr(NULL);
1.174 +
1.175 + //Retrieve the characteristics for the hash implementation object
1.176 + TRAP_LOG(err, hashImpl->GetCharacteristicsL(charsPtr));
1.177 +
1.178 + //Static cast the characteristics to type THashCharacteristics
1.179 + const THashCharacteristics* hashCharsPtr = static_cast<const THashCharacteristics*>(charsPtr);
1.180 +
1.181 + //The hash output size is returned in Bits, divide by 8 to get the Byte size
1.182 + TInt hashSize = hashCharsPtr->iOutputSize/8;
1.183 +
1.184 + //Retrieve the final 8bit hash value and convert to 16bit
1.185 + HBufC* hashData = HBufC::NewLC(hashSize);
1.186 + TPtr hashPtr = hashData->Des();
1.187 +
1.188 + //Copy the hashed content into the heap based descriptor
1.189 + hashPtr.Copy(hashStr);
1.190 +
1.191 + //Take the 16bit descriptor and convert the string to hexadecimal
1.192 + TVariantPtrC convertHash;
1.193 + convertHash.Set(hashPtr);
1.194 + HBufC* hashResult = convertHash.HexStringLC();
1.195 +
1.196 + INFO_PRINTF2(_L("*** Hashed Data: %S ***"),&*hashResult);
1.197 + INFO_PRINTF2(_L("*** Expected Hash: %S ***"),&expectedHash);
1.198 +
1.199 + //If the returned hash value matches the expected hash, Pass the test
1.200 + if(*hashResult == expectedHash)
1.201 + {
1.202 + INFO_PRINTF1(_L("*** Hash - Incremental Hash : PASS ***"));
1.203 + SetTestStepResult(EPass);
1.204 + }
1.205 + else
1.206 + {
1.207 + ERR_PRINTF2(_L("*** FAIL: Hashed and Expected Value Mismatch ***"), err);
1.208 + SetTestStepResult(EFail);
1.209 + }
1.210 +
1.211 + CleanupStack::PopAndDestroy(2, hashData); // hashResult, hashData
1.212 + }
1.213 +
1.214 + //Cleanup the Source RFile
1.215 + CleanupStack::PopAndDestroy();
1.216 + }
1.217 +
1.218 + CleanupStack::PopAndDestroy(&fsSession);
1.219 +
1.220 + fsSession.Close();
1.221 +
1.222 + CleanupStack::PopAndDestroy(hashImpl);
1.223 + }
1.224 + else
1.225 + {
1.226 + ERR_PRINTF2(_L("*** FAIL: Failed to Create Hash Object - %d ***"), err);
1.227 + SetTestStepResult(EFail);
1.228 + }
1.229 + }
1.230 +
1.231 + INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells());
1.232 + return TestStepResult();
1.233 + }
1.234 +
1.235 +
1.236 +TVerdict CHashIncrementalStep::doTestStepPostambleL()
1.237 + {
1.238 + return TestStepResult();
1.239 + }