--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/source/symmetric/arc4shim.h	Fri Nov 06 13:21:00 2009 +0200
@@ -0,0 +1,107 @@
+/*
+* 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: 
+* ARC4 shim classes definition
+*
+*/
+
+
+/**
+ @file
+ @internalComponent
+ @released
+*/
+
+#ifndef ARC4SHIM_H
+#define ARC4SHIM_H
+
+#include <arc4.h>
+
+namespace CryptoSpi
+	{
+	class CCryptoParams;
+	class CSymmetricCipher;
+	class CKey;
+	}
+	
+NONSHARABLE_CLASS(CArc4Shim) : public CARC4
+{
+public:
+	/**
+	Creates a CArc4Shim object which has the same interface as CARC4 
+	but delegates all work to a Crypto SPI plug-in.
+	@param aKey					The key to use. aKey must be less 
+								than or equal to KRC4MaxKeySizeBytes.  
+	@param aDiscardBytes		The number of bytes to drop from the 
+								beginning of the key stream.
+	@return						A pointer to a CArc4Shim instance
+	@leave KErrKeyNotWeakEnough	If the key size is larger than that 
+								allowed by the cipher strength 
+								restrictions of the crypto library.
+								See TCrypto::IsSymmetricWeakEnoughL()
+	*/
+	static CArc4Shim* NewL(const TDesC8& aKey, TUint aDiscardBytes);
+	
+	/**
+	Creates a CArc4Shim object which has the same interface as CARC4,
+	and leave it on the cleanup stack. but delegates all work to a 
+	Crypto SPI plug-in.
+	@param aKey					The key to use. aKey must be less 
+								than or equal to KRC4MaxKeySizeBytes.  
+	@param aDiscardBytes		The number of bytes to drop from the 
+								beginning of the key stream.
+	@return						A pointer to a CArc4Shim instance
+	@leave KErrKeyNotWeakEnough	If the key size is larger than that 
+								allowed by the cipher strength 
+								restrictions of the crypto library.
+								See TCrypto::IsSymmetricWeakEnoughL()
+	*/
+	static CArc4Shim* NewLC(const TDesC8& aKey, TUint aDiscardBytes);
+
+	/**
+	Destructor
+	*/
+	~CArc4Shim();
+
+	// From CSymmetricCipher class
+	void Reset();
+	TInt BlockSize() const;
+	TInt KeySize() const;		
+	void Process(const TDesC8& aInput, TDes8& aOutput);
+	void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);
+	TInt MaxOutputLength(TInt aInputLength) const;
+	TInt MaxFinalOutputLength(TInt aInputLength) const;
+
+private:
+	/** 
+	Constructor
+	*/
+	CArc4Shim();
+
+	/**
+	Second Phase Constructor
+	*/
+	void ConstructL(const TDesC8& aKey, TUint aDiscardBytes);
+		
+private:
+	/// SPI delegate
+	CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
+		
+	/// SPI requires all key to passed as key-objects
+	CryptoSpi::CKey* iKey;
+	
+	CryptoSpi::CCryptoParams* iAlgorithmParams;
+};
+
+#endif // ARC4SHIM_H