--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/source/symmetric/bufferedtransformationshim.cpp	Fri Nov 06 13:21:00 2009 +0200
@@ -0,0 +1,189 @@
+/*
+* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+* blocktransformationshim.cpp
+*
+*/
+
+
+#include "bufferedtransformationshim.h"
+
+#include <cryptospi/cryptospidef.h>
+#include <padding.h>
+#include "cryptosymmetriccipherapi.h"
+#include <cryptospi/plugincharacteristics.h>
+#include "../common/inlines.h"
+
+// CBufferedEncryptorShim
+CBufferedEncryptorShim::CBufferedEncryptorShim(CryptoSpi::CSymmetricCipher* aSymmetricCipherImpl) :
+	iSymmetricCipherImpl(aSymmetricCipherImpl)
+	{
+	}
+
+CBufferedEncryptorShim* CBufferedEncryptorShim::NewL(CBlockTransformation* aBT, CPadding* aPadding)
+	{
+	CBufferedEncryptorShim* self(0);
+	
+	// Check whether the block transform contains an SPI plug-in
+	TAny* implPtr(0);
+	TInt err = aBT->GetExtension(CryptoSpi::KSymmetricCipherInterface, implPtr, NULL);	
+	if (err == KErrNone && implPtr)
+		{
+		CryptoSpi::CSymmetricCipher* impl(static_cast<CryptoSpi::CSymmetricCipher*>(implPtr));
+		
+		const CryptoSpi::TCharacteristics* c(0);
+		impl->GetCharacteristicsL(c);
+	
+		const CryptoSpi::TSymmetricCipherCharacteristics* cipherCharacteristics(
+			static_cast<const CryptoSpi::TSymmetricCipherCharacteristics*>(c));
+			
+		// See if the padding mode is recognised by CryptoSpi and if so, check
+		// whether the plug-in supports that padding mode.
+		TUid paddingMode;
+		TAny* paddingPtr = &paddingMode;		
+		err = aPadding->GetExtension(CryptoSpi::KPaddingInterface, paddingPtr, 0);		
+		if (err == KErrNone && cipherCharacteristics->IsPaddingModeSupported(paddingMode))
+			{
+			impl->SetCryptoModeL(CryptoSpi::KCryptoModeEncryptUid);
+			impl->SetPaddingModeL(paddingMode);		
+			self = new(ELeave) CBufferedEncryptorShim(impl);
+			CleanupStack::PushL(self);
+			self->ConstructL(aBT, aPadding);
+			CleanupStack::Pop(self);
+			}
+		}				
+	return self;
+	}
+
+void CBufferedEncryptorShim::ConstructL(CBlockTransformation* aBT, CPadding* aPadding)
+	{
+	CBufferedEncryptor::ConstructL(aBT, aPadding);
+	}
+
+void CBufferedEncryptorShim::Process(const TDesC8& aInput, TDes8& aOutput)
+	{
+	TRAP_IGNORE(iSymmetricCipherImpl->ProcessL(aInput, aOutput);)
+	}
+	
+TInt CBufferedEncryptorShim::MaxOutputLength(TInt aInputLength) const
+	{
+	return iSymmetricCipherImpl->MaxOutputLength(aInputLength);
+	}
+	
+void CBufferedEncryptorShim::Reset()
+	{
+	iSymmetricCipherImpl->Reset();
+	}
+	
+TInt CBufferedEncryptorShim::BlockSize() const
+	{
+	return BitsToBytes(iSymmetricCipherImpl->BlockSize());
+	}
+	
+TInt CBufferedEncryptorShim::KeySize() const
+	{
+	return iSymmetricCipherImpl->KeySize();
+	}
+	
+void CBufferedEncryptorShim::ProcessFinalL(const TDesC8& aInput, TDes8& aOutput)
+	{
+	iSymmetricCipherImpl->ProcessFinalL(aInput, aOutput);
+	}
+	
+TInt CBufferedEncryptorShim::MaxFinalOutputLength(TInt aInputLength) const
+	{
+	return iSymmetricCipherImpl->MaxFinalOutputLength(aInputLength);
+	}
+
+// CBufferedDecryptorShim
+CBufferedDecryptorShim::CBufferedDecryptorShim(CryptoSpi::CSymmetricCipher* aSymmetricCipherImpl) :
+	iSymmetricCipherImpl(aSymmetricCipherImpl)
+	{
+	}
+
+CBufferedDecryptorShim* CBufferedDecryptorShim::NewL(CBlockTransformation* aBT, CPadding* aPadding)
+	{
+	CBufferedDecryptorShim* self(0);
+	
+	// Check whether the block transform contains an SPI plug-in
+	TAny* implPtr(0);
+	TInt err = aBT->GetExtension(CryptoSpi::KSymmetricCipherInterface, implPtr, NULL);	
+	if (err == KErrNone && implPtr)
+		{
+		CryptoSpi::CSymmetricCipher* impl(static_cast<CryptoSpi::CSymmetricCipher*>(implPtr));
+		
+		const CryptoSpi::TCharacteristics* c(0);
+		impl->GetCharacteristicsL(c);
+	
+		const CryptoSpi::TSymmetricCipherCharacteristics* cipherCharacteristics(
+			static_cast<const CryptoSpi::TSymmetricCipherCharacteristics*>(c));
+			
+		// See if the padding mode is recognised by CryptoSpi and if so, check
+		// whether the plug-in supports that padding mode.
+		TUid paddingMode;
+		TAny* paddingPtr = &paddingMode;		
+		err = aPadding->GetExtension(CryptoSpi::KPaddingInterface, paddingPtr, 0);		
+		if (err == KErrNone && cipherCharacteristics->IsPaddingModeSupported(paddingMode))
+			{
+			impl->SetCryptoModeL(CryptoSpi::KCryptoModeDecryptUid);			
+			impl->SetPaddingModeL(paddingMode);
+			
+			self = new(ELeave) CBufferedDecryptorShim(impl);
+			CleanupStack::PushL(self);
+			self->ConstructL(aBT, aPadding);
+			CleanupStack::Pop(self);
+			}
+		}				
+	return self;
+	}
+
+void CBufferedDecryptorShim::ConstructL(CBlockTransformation* aBT, CPadding* aPadding)
+	{
+	CBufferedDecryptor::ConstructL(aBT, aPadding);
+	}
+
+void CBufferedDecryptorShim::Process(const TDesC8& aInput, TDes8& aOutput)
+	{
+	TRAP_IGNORE(iSymmetricCipherImpl->ProcessL(aInput, aOutput);)
+	}
+	
+TInt CBufferedDecryptorShim::MaxOutputLength(TInt aInputLength) const
+	{
+	return iSymmetricCipherImpl->MaxOutputLength(aInputLength);
+	}
+	
+void CBufferedDecryptorShim::Reset()
+	{
+	iSymmetricCipherImpl->Reset();
+	}
+	
+TInt CBufferedDecryptorShim::BlockSize() const
+	{
+	return BitsToBytes(iSymmetricCipherImpl->BlockSize());
+	}
+	
+TInt CBufferedDecryptorShim::KeySize() const
+	{
+	return iSymmetricCipherImpl->KeySize();
+	}
+	
+void CBufferedDecryptorShim::ProcessFinalL(const TDesC8& aInput, TDes8& aOutput)
+	{
+	iSymmetricCipherImpl->ProcessFinalL(aInput, aOutput);
+	}
+	
+TInt CBufferedDecryptorShim::MaxFinalOutputLength(TInt aInputLength) const
+	{
+	return iSymmetricCipherImpl->MaxFinalOutputLength(aInputLength);
+	}