1 /*

     2 * Copyright (c) 2002-2009 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 "tmontgomeryvector.h"

    20 #include "t_input.h"

    21 #include <bigint.h>

    22 #include "../../source/bigint/mont.h"

    23 

    24 CTestAction* CMontgomeryVector::NewL(RFs& aFs, CConsoleBase& aConsole, 

    25 	Output& aOut, const TTestActionSpec& aTestActionSpec)

    26 	{

    27 	CTestAction* self = CMontgomeryVector::NewLC(aFs, aConsole,

    28 		aOut, aTestActionSpec);

    29 	CleanupStack::Pop();

    30 	return self;

    31 	}

    32 

    33 CTestAction* CMontgomeryVector::NewLC(RFs& aFs, CConsoleBase& aConsole, 

    34 	Output& aOut, const TTestActionSpec& aTestActionSpec)

    35 	{

    36 	CMontgomeryVector* self = new(ELeave) CMontgomeryVector(aFs, aConsole, aOut);

    37 	CleanupStack::PushL(self);

    38 	self->ConstructL(aTestActionSpec);

    39 	return self;

    40 	}

    41 

    42 CMontgomeryVector::~CMontgomeryVector()

    43 	{

    44 	delete iBody;

    45 	delete iA;

    46 	delete iB;

    47 	delete iModulus;

    48 	delete iAns;

    49 	}

    50 

    51 CMontgomeryVector::CMontgomeryVector(RFs& aFs, CConsoleBase& aConsole, 

    52 	Output& aOut) : CTestAction(aConsole, aOut), iFs(aFs)

    53 	{

    54 	}

    55 

    56 void CMontgomeryVector::ConstructL(const TTestActionSpec& aTestActionSpec)

    57 	{

    58 	CTestAction::ConstructL(aTestActionSpec);

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

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

    61 

    62 	iA = Input::ParseElementHexL(*iBody, _L8("<a>"));

    63 	iB = Input::ParseElementHexL(*iBody, _L8("<b>"));

    64 	iModulus = Input::ParseElementHexL(*iBody, _L8("<modulus>"));

    65 	iAns = Input::ParseElementHexL(*iBody, _L8("<ans>"));

    66 	TPtrC8 op = Input::ParseElement(*iBody, _L8("<op>"));

    67 	if( op == _L8("multiply") )

    68 		{

    69 		iOp = EMultiply;

    70 		}

    71 	else if( op == _L8("square") )

    72 		{

    73 		iOp = ESquare;

    74 		}

    75 	else if( op == _L8("reduce") )

    76 		{

    77 		iOp = EReduce;

    78 		}

    79 	else if( op == _L8("exponentiate") )

    80 		{

    81 		iOp = EExponentiate;

    82 		}

    83 	else 

    84 		{

    85 		User::Panic(_L("tmontgomeryvector"), 1);

    86 		}

    87 	}

    88 

    89 void CMontgomeryVector::DoPerformPrerequisite(TRequestStatus& aStatus)

    90 	{

    91 	TRequestStatus* status = &aStatus;

    92 	User::RequestComplete(status, KErrNone);

    93 	iActionState = CTestAction::EAction;

    94 	}

    95 

    96 void CMontgomeryVector::DoPerformPostrequisite(TRequestStatus& aStatus)

    97 	{

    98 	TRequestStatus* status = &aStatus;

    99 	iFinished = ETrue;

   100 	User::RequestComplete(status, KErrNone);

   101 	}

   102 

   103 void CMontgomeryVector::DoReportAction(void)

   104 	{

   105 	}

   106 

   107 void CMontgomeryVector::DoCheckResult(TInt)

   108 	{

   109 	}

   110 

   111 void CMontgomeryVector::PerformAction(TRequestStatus& aStatus)

   112 	{

   113 	__UHEAP_MARK;

   114 	TRequestStatus* status = &aStatus;

   115 	iResult = ETrue;

   116 

   117  	RInteger a = RInteger::NewL(*iA);

   118 	CleanupStack::PushL(a);

   119 	RInteger b = RInteger::NewL(*iB);

   120 	CleanupStack::PushL(b);

   121 	RInteger modulus = RInteger::NewL(*iModulus);

   122 	CleanupStack::PushL(modulus);

   123 	RInteger ans = RInteger::NewL(*iAns);

   124 	CleanupStack::PushL(ans);

   125 	CMontgomeryStructure* mont = CMontgomeryStructure::NewL(modulus);

   126 	CleanupStack::PushL(mont);

   127 	//we don't own out at any point, it remains the propery of mont

   128 	const TInteger* out = 0;

   129 	switch(iOp)

   130 		{

   131 		case EMultiply:

   132 			out = &(mont->MultiplyL(a, b));

   133 			break;

   134 		case ESquare:

   135 			out = &(mont->SquareL(a));

   136 			break;

   137 		case EReduce:

   138 			out = &(mont->ReduceL(a));

   139 			break;

   140 		case EExponentiate:

   141 			out = &(mont->ExponentiateL(a, b));

   142 			break;

   143 		default:

   144 			User::Panic(_L("tbasicmathsvector"), 2);

   145 			break;

   146 		}

   147 

   148 	if( *out != ans )

   149 		{

   150 		iResult = EFalse;

   151 		}

   152 	CleanupStack::PopAndDestroy(mont);

   153 	CleanupStack::PopAndDestroy(4); //ans, modulus, b,a 

   154 

   155 	User::RequestComplete(status, KErrNone);

   156 	iActionState = CTestAction::EPostrequisite;

   157 	__UHEAP_MARKEND;

   158 	}

   159