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/*
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* Copyright (c) 2005-2009 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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/**
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@file
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*/
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#include <e32std.h>
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#include <e32math.h>
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#include <e32debug.h>
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#include "randomimpl.h"
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#include "pluginentry.h"
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#include "pluginconfig.h"
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#include "securityerr.h"
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using namespace SoftwareCrypto;
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CRandomImpl* CRandomImpl::NewL(TUid aImplementationUid)
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{
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CRandomImpl* self = new(ELeave)CRandomImpl(aImplementationUid);
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return self;
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}
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CRandomImpl* CRandomImpl::NewLC(TUid aImplementationUid)
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{
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CRandomImpl* self = NewL(aImplementationUid);
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CleanupStack::PushL(self);
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return self;
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}
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void CRandomImpl::GenerateRandomBytesL(TDes8& aDestination)
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{
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// Call the Math library to populate the buffer with random data.
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TRAPD(err, Math::RandomL(aDestination));
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if(err != KErrNone)
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{
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// As the end users are interested only in the security aspect of the output but not
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// the internal states, accordingly translate the kernel side error code if required.
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err = (err == KErrNotReady) ? KErrNotSecure : err;
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User::Leave(err);
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}
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}
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CRandomImpl::CRandomImpl(TUid aImplementationUid) : iImplementationUid(aImplementationUid)
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{
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}
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void CRandomImpl::GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics)
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{
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TInt randomNum = sizeof(KRandomCharacteristics)/sizeof(TRandomCharacteristics*);
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for (TInt i = 0; i < randomNum; i++)
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{
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if (KRandomCharacteristics[i]->cmn.iImplementationUID == ImplementationUid().iUid)
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{
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aPluginCharacteristics = KRandomCharacteristics[i];
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break;
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}
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}
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}
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TAny* CRandomImpl::GetExtension(TUid /*aExtensionId*/)
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{
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return NULL;
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}
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CExtendedCharacteristics* CRandomImpl::CreateExtendedCharacteristicsL()
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{
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// All Symbian software plug-ins have unlimited concurrency, cannot be reserved
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// for exclusive use and are not CERTIFIED to be standards compliant.
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return CExtendedCharacteristics::NewL(KMaxTInt, EFalse);
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}
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const CExtendedCharacteristics* CRandomImpl::GetExtendedCharacteristicsL()
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{
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return CRandomImpl::CreateExtendedCharacteristicsL();
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}
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TUid CRandomImpl::ImplementationUid() const
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{
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return iImplementationUid;
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}
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CRandomImpl::~CRandomImpl()
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{
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}
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void CRandomImpl::Close()
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{
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delete this;
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}
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// All crypto plugins must implement this, to reset
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// hardware if required. Do nothing in this version
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void CRandomImpl::Reset()
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{
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}
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