crypto/weakcrypto/test/tbigint/tutils.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 31 Aug 2010 17:00:08 +0300
branchRCL_3
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permissions -rw-r--r--
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/*
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* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#include "tutils.h"
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#include <bigint.h>
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#include "t_output.h"
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void Utils::DumpInteger(Output& aOut, const TDesC& aDesc, 
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	const RInteger& aThat)
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	{
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	aOut.writeString(aDesc);
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	HBufC8* buf = aThat.BufferLC();
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	aOut.writeOctetString(*buf);
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	aOut.writeNewLine();
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	CleanupStack::PopAndDestroy(buf);
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	}
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/* CRandomSetSource */
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CRandomSetSource::CRandomSetSource(const TDesC8& aSource)
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    {
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	SetSource(aSource);
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    }
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void CRandomSetSource::GenerateBytesL(TDes8& aDest)
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    {
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	TInt i=0;
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	//Reverse the string by bytes up to the point of the end of the given string
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	//of "random" bytes.
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    for (i=0; iCounter >= 0 && i< aDest.Length(); ++i,--iCounter)
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        {
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        aDest[i] = iValue[iCounter];
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        }
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	//Then fill the remaining (if any) bytes in aDest with 0's.  This is all to
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	//allow the stuff to work with bigint style integers; we're writing straight
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	//into a RInteger.Ptr() here
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	for(;i<aDest.Length(); ++i)
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		{
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        aDest[i] = 0x00;
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		}
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    }
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void CRandomSetSource::SetSource(const TDesC8& aSource)
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	{
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	iValue.Set(aSource);
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	Reset();
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	}
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void CRandomSetSource::Reset(void) 
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	{
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	iCounter = iValue.Length() - 1;
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	}