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/*
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* Copyright (c) 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 "dummyeccimpl.h"
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#include <e32def.h>
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#include <cryptospi/cryptospidef.h>
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#include "keys.h"
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#include <cryptospi/plugincharacteristics.h>
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#include "pluginconfig.h"
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#include "cryptospihai.h"
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using namespace DummyEccHwCrypto;
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using namespace CryptoSpiHai;
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/**
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* These are just randomly selected numbers. There is no logic behind
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* their values.
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*/
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const TInt KMaxOutputLength = 50;
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const TInt KMaxInputLength = 50;
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CDummyECCCipherImpl* CDummyECCCipherImpl::NewL(const CKey& aKey,
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TUid aCryptoMode, TUid aPaddingMode)
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{
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CDummyECCCipherImpl* self = CDummyECCCipherImpl::NewLC(aKey, aCryptoMode,
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aPaddingMode);
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CleanupStack::Pop(self);
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return self;
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}
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CDummyECCCipherImpl* CDummyECCCipherImpl::NewLC(const CKey& aKey,
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TUid aCryptoMode, TUid aPaddingMode)
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{
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CDummyECCCipherImpl* self = new (ELeave) CDummyECCCipherImpl(aCryptoMode,
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aPaddingMode);
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CleanupStack::PushL(self);
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self->ConstructL(aKey);
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return self;
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}
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CDummyECCCipherImpl::CDummyECCCipherImpl(TUid aCryptoMode, TUid aPaddingMode) :
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iCryptoMode(aCryptoMode), iPaddingMode(aPaddingMode)
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{
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}
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void CDummyECCCipherImpl::ConstructL(const CKey& aKey)
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{
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SetKeyL(aKey);
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}
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// MPlugin Interface Start
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void CDummyECCCipherImpl::Close()
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{
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delete this;
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}
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void CDummyECCCipherImpl::Reset()
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{
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}
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void CDummyECCCipherImpl::GetCharacteristicsL(
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const TCharacteristics*& aPluginCharacteristics)
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{
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TInt numCiphers = sizeof(KAsymmetricCipherCharacteristics)
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/ sizeof(TAsymmetricCipherCharacteristics*);
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TInt32 implUid = ImplementationUid().iUid;
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for (TInt i = 0; i < numCiphers; ++i)
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{
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if (KAsymmetricCipherCharacteristics[i]->cmn.iImplementationUID
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== implUid)
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{
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aPluginCharacteristics = KAsymmetricCipherCharacteristics[i];
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break;
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}
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}
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}
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const CExtendedCharacteristics* CDummyECCCipherImpl::GetExtendedCharacteristicsL()
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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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TAny* CDummyECCCipherImpl::GetExtension(TUid /* aExtensionId */)
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{
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return 0;
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}
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// End of MPlugin Interface
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// MAsymmetricCipherBase Interface
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void CDummyECCCipherImpl::SetKeyL(const CKey& aKey)
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{
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// delete any previous key and recreate the key
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delete iKey;
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iKey = NULL;
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iKey = CKey::NewL(aKey);
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}
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void CDummyECCCipherImpl::SetCryptoModeL(TUid aCryptoMode)
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{
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switch (aCryptoMode.iUid)
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{
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case KCryptoModeEncrypt:
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case KCryptoModeDecrypt:
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break;
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default:
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User::Leave(KErrNotSupported);
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}
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iCryptoMode = aCryptoMode;
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}
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void CDummyECCCipherImpl::SetPaddingModeL(TUid /* aPaddingMode */)
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{
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User::Leave(KErrNotSupported);
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}
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TInt CDummyECCCipherImpl::GetMaximumInputLengthL() const
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{
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return KMaxInputLength;
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}
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TInt CDummyECCCipherImpl::GetMaximumOutputLengthL() const
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{
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return KMaxOutputLength;
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}
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// End of MAsymmetricCipherBase Interface
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// MAsymmetricCipher Interface
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void CDummyECCCipherImpl::ProcessL(const TDesC8& aInput, TDes8& aOutput)
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{
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if (iCryptoMode.iUid == KCryptoModeEncrypt)
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{
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EncryptL(aInput, aOutput);
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}
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else
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{
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DecryptL(aInput, aOutput);
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}
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}
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TUid CDummyECCCipherImpl::ImplementationUid() const
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{
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return KCryptoPluginEccCipherUid;
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}
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CDummyECCCipherImpl::~CDummyECCCipherImpl()
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{
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delete iKey;
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}
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void CDummyECCCipherImpl::EncryptL(const TDesC8& /* aInput */, TDes8& /* aOuput */)
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{
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User::Leave(KErrNotSupported);
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}
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void CDummyECCCipherImpl::DecryptL(const TDesC8& aInput, TDes8& aOutput)
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{
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if (iKey->IsPresent(KPassedHandleToKeyUid))
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{
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const TInt& keyHandle = iKey->GetTIntL(KPassedHandleToKeyUid);
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// Invoke the Spi HAI to perform the operation
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CCryptoSpiHai::DecryptL(keyHandle, aInput, aOutput);
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}
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else
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{
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User::Leave(KErrNotSupported);
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}
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}
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// End of file
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