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os/security/crypto/weakcryptospi/test/tsymmetric/cryptotestaction.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution. 
     1 /*

     2 * Copyright (c) 1998-2009 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 *

    16 */

    17 

    18 

    19 #include "cryptotestaction.h"

    20 #include <securityerr.h>

    21 #include <cryptostrength.h>

    22 #include "../common/inlines.h"

    23 #include "t_output.h"

    24 

    25 CCryptoTestAction::CCryptoTestAction(RFs& aFs, CConsoleBase& aConsole, Output& aOut)

    26 :	CTestAction(aConsole, aOut), iFs(aFs), iEffectiveKeyLen(128)

    27 {}

    28 

    29 CCryptoTestAction::~CCryptoTestAction()

    30 {

    31 	delete iBody;

    32 }

    33 

    34 void CCryptoTestAction::ConstructL(const TTestActionSpec& aTestActionSpec)

    35 {

    36 	CTestAction::ConstructL(aTestActionSpec);

    37 	iBody = HBufC8::NewL(aTestActionSpec.iActionBody.Length());

    38 	iBody->Des().Copy(aTestActionSpec.iActionBody);	

    39 }

    40 

    41 void CCryptoTestAction::DoPerformPrerequisite(TRequestStatus& aStatus)

    42 {

    43 	TRequestStatus* status = &aStatus;

    44 	

    45 	TRAPD(r, DoPerformPrerequisiteL());

    46 	if ((r != iExpectedWeakResult) && (TCrypto::Strength() == TCrypto::EWeak))

    47 		{

    48 		r = KErrUnknown;

    49 		}

    50 	User::RequestComplete(status, r);

    51 	if (KErrNone==r)

    52 		{

    53 		iActionState = CTestAction::EAction;

    54 		}

    55 	else if (r==KErrKeyNotWeakEnough)

    56 		{

    57 		iResult = ETrue;

    58 		iConsole.Printf(_L("Crypto libraries returned KErrKeyNotWeakEnough!  Passing test automatically.\n\r"));

    59 		iOut.writeString(_L("Crypto libraries returned KErrKeyNotWeakEnough!  Passing test automatically.\r\n"));

    60 		iActionState = CTestAction::EPostrequisite;

    61 		}

    62 	else if (r==KErrWeakKey)

    63  		{

    64  		iResult = ETrue;

    65  		iConsole.Printf(_L("Crypto libraries returned KErrWeakKey!  Passing test automatically.\n\r"));

    66  		iOut.writeString(_L("Crypto libraries returned KErrWeakKey!  Passing test automatically.\r\n"));

    67  		iActionState = CTestAction::EPostrequisite;

    68  		}

    69 	else

    70 		{

    71 		iActionState = CTestAction::EPostrequisite;

    72 		}

    73 }

    74 

    75 void CCryptoTestAction::DoPerformPostrequisite(TRequestStatus& aStatus)

    76 {

    77 	TRequestStatus* status = &aStatus;

    78 	TRAPD(r, DoPerformPostrequisiteL());

    79 	delete iKey;

    80 	delete iInput;

    81 	delete iOutput;

    82 	delete iIV;

    83 	delete iEResult;

    84 	delete iDResult;

    85 

    86 	iFinished = ETrue;

    87 	User::RequestComplete(status, r);

    88 }

    89 

    90 void CCryptoTestAction::DoReportAction(void)

    91 {}

    92 

    93 void CCryptoTestAction::DoCheckResult(TInt)

    94 {

    95 	if (iResult==EFalse)

    96 		iConsole.Printf(_L("X"));

    97 	else

    98 		iConsole.Printf(_L("."));

    99 }

   100 

   101 void CCryptoTestAction::PerformAction(TRequestStatus& aStatus)

   102 {

   103 	TRequestStatus* status = &aStatus;

   104 

   105 	TRAPD(res, DoPerformActionL());

   106 	if (res==KErrNoMemory)

   107 		{

   108 		User::Leave(res);	//	For OOM testing

   109 		}

   110 	iActionState = CTestAction::EPostrequisite;

   111 	User::RequestComplete(status, res);

   112 }

   113 

   114 

   115 void CCryptoTestAction::DoInputParseL(TDesC8& aScriptBuffer)

   116 {

   117 	TInt err = KErrNone;

   118 	TInt pos = 0;

   119 

   120 	TPtrC8 keyTemp = Input::ParseElement(aScriptBuffer, KKeyStart, KKeyEnd, pos=0, err);

   121 	iKey = HBufC8::NewL(keyTemp.Length());

   122 	*iKey = keyTemp;

   123 	Hex(*iKey);

   124 

   125 	TPtrC8 inputTemp = Input::ParseElement(aScriptBuffer, KInputStart, KInputEnd, pos=0, err);

   126 	iInput = HBufC8::NewL(inputTemp.Length());

   127 	*iInput = inputTemp;

   128 	Hex(*iInput);

   129 

   130 	TPtrC8 ivTemp = Input::ParseElement(aScriptBuffer, KIVStart, KIVEnd, pos=0, err);

   131 	iIV = HBufC8::NewL(ivTemp.Length());

   132 	*iIV = ivTemp;

   133 	Hex(*iIV);

   134 

   135 	TPtrC8 outputTemp = Input::ParseElement(aScriptBuffer, KOutputStart, KOutputEnd, pos=0, err);

   136 	iOutput = HBufC8::NewL(outputTemp.Length());

   137 	*iOutput = outputTemp;

   138 	Hex(*iOutput);

   139 

   140 	TPtrC8 cipherType = Input::ParseElement(aScriptBuffer, KCipherTypeStart, KCipherTypeEnd, pos=0, err);

   141 	iExpectedWeakResult = KErrNone;

   142 	if( cipherType == _L8("DESECB") )

   143 	{

   144 		iCipherType = EDESECB;

   145 	}

   146 	else if( cipherType == _L8("DESCBC") )

   147 	{

   148 		iCipherType = EDESCBC;

   149 	}

   150 	else if( cipherType == _L8("3DESECB") )

   151 	{

   152 		iCipherType = E3DESECB;

   153 		iExpectedWeakResult = KErrKeyNotWeakEnough;

   154 	}

   155 	else if( cipherType == _L8("3DESCBC") )

   156 	{

   157 		iCipherType = E3DESCBC;

   158 		iExpectedWeakResult = KErrKeyNotWeakEnough;

   159 	}

   160 	else if( cipherType == _L8("AESECB") )

   161 	{

   162 		iCipherType = EAESECB;

   163 		iExpectedWeakResult = KErrKeyNotWeakEnough;

   164 	}

   165 	else if (cipherType==_L8("AESENC_ECB") )

   166 	{

   167 		iCipherType = EAESMonteCarloEncryptECB;	

   168 		iExpectedWeakResult = KErrKeyNotWeakEnough;

   169 	}

   170 	else if (cipherType==_L8("AESDEC_ECB") )

   171 	{

   172 		iCipherType = EAESMonteCarloDecryptECB;	

   173 		iExpectedWeakResult = KErrKeyNotWeakEnough;

   174 	}

   175 	else if (cipherType==_L8("AESENC_CBC") )

   176 	{

   177 		iCipherType = EAESMonteCarloEncryptCBC;	

   178 		iExpectedWeakResult = KErrKeyNotWeakEnough;

   179 	}

   180 	else if (cipherType==_L8("AESDEC_CBC") )

   181 	{

   182 		iCipherType = EAESMonteCarloDecryptCBC;		

   183 		iExpectedWeakResult = KErrKeyNotWeakEnough;

   184 	}

   185 	else if( cipherType == _L8("RC2ECB") )

   186 	{

   187 		iCipherType = ERC2ECB;

   188 		// weak enough if either aKey or aEffectiveKeyLen is weak

   189 		TInt minKeySize = Min(iEffectiveKeyLen, BytesToBits(iKey->Size()));

   190 		TRAP(iExpectedWeakResult, TCrypto::IsSymmetricWeakEnoughL(minKeySize));

   191 	}

   192 	else if( cipherType == _L8("RC2CBC") )

   193 	{

   194 		iCipherType = ERC2CBC;

   195 		// weak enough if either aKey or aEffectiveKeyLen is weak

   196 		TInt minKeySize = Min(iEffectiveKeyLen, BytesToBits(iKey->Size()));

   197 		TRAP(iExpectedWeakResult, TCrypto::IsSymmetricWeakEnoughL(minKeySize));

   198 	}

   199 	else if( cipherType == _L8("RC4") )

   200 	{

   201 		iCipherType = ERC4;

   202 		TRAP(iExpectedWeakResult, TCrypto::IsSymmetricWeakEnoughL(BytesToBits(iKey->Size())));

   203 	}

   204 	else if( cipherType == _L8("NULL") )

   205 	{

   206 		iCipherType = ECipherNull;

   207 	}

   208  	else if( cipherType == _L8("DESECB_WKT"))

   209  	{

   210  		iCipherType = EDESECB;	

   211  		iExpectedWeakResult = KErrWeakKey;

   212  	}

   213  	else if( cipherType == _L8("DESCBC_WKT"))

   214  	{

   215  		iCipherType = EDESCBC;	

   216  		iExpectedWeakResult = KErrWeakKey;

   217  	}

   218 	else 

   219 	{

   220 		TBuf<64> cipherName(0);

   221 		cipherName.Copy(cipherType);

   222 		TBuf<256> formattable;

   223 		formattable.Format(_L("\nBad Cipher Type: %S"), &cipherName);

   224 		iConsole.Printf(formattable);

   225 

   226 		iActionState = CTestAction::EPostrequisite;

   227 		User::Leave(KErrNotSupported);

   228 	}

   229 

   230 	if ( (iCipherType==ERC2ECB) || (iCipherType==ERC2CBC) )

   231 	{

   232 		TPtrC8 effKeyLenTemp = Input::ParseElement(aScriptBuffer, KEffKeyLenStart, KEffKeyLenEnd, pos=0, err);

   233 

   234 		if (effKeyLenTemp.Length() != 0)

   235 		{

   236 			TLex8 lex;

   237 			lex.Assign(effKeyLenTemp);

   238 			User::LeaveIfError(lex.Val(iEffectiveKeyLen));

   239 		}

   240 	}

   241 

   242 	TPtrC8 iterationsTemp = Input::ParseElement(aScriptBuffer, KIterationsStart, KIterationsEnd, pos=0, err);	

   243 	TLex8 lex;

   244 	lex.Assign(iterationsTemp);

   245 	err = lex.Val(iIterationTime);

   246 

   247 	TPtrC8 randTemp = Input::ParseElement(aScriptBuffer, KRandDataSizeStart, KRandDataSizeEnd, pos=0, err);	

   248 	TLex8 randlex;

   249 	randlex.Assign(randTemp);

   250 	err = randlex.Val(iRandDataSize);	

   251 

   252 	delete iBody;

   253 	iBody = NULL;

   254 }

   255 

   256 void CCryptoTestAction::Hex(HBufC8& aString)

   257     {

   258     TPtr8 ptr=aString.Des();

   259     if (aString.Length()%2)

   260         {

   261         ptr.SetLength(0);

   262         return;

   263         }

   264     TInt i;

   265     for (i=0;i<aString.Length();i+=2)

   266         {

   267         TUint8 tmp;

   268         tmp=(TUint8)(aString[i]-(aString[i]>'9'?('A'-10):'0'));

   269         tmp*=16;

   270         tmp|=(TUint8)(aString[i+1]-(aString[i+1]>'9'?('A'-10):'0'));

   271         ptr[i/2]=tmp;

   272         }

   273     ptr.SetLength(aString.Length()/2);

   274     }

   275
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