os/security/cryptoservices/filebasedcertificateandkeystores/source/shared/TokenDataMarshaller.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
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/*
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* Copyright (c) 2004-2009 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 "fsmarshaller.h"
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#include "fsdatatypes.h"
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#include "NullStream.h"
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#include <asymmetric.h>
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#include <bigint.h>
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#include <pbedata.h>
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#include <s32mem.h>
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#include <certificateapps.h>
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#include <ccertattributefilter.h>
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// Generic externalization stuff ///////////////////////////////////////////////
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/**
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 * Determine how many bytes are taked up by the externalized representation of
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 * an object.
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 */
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template <class T>
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TInt Size(const T& aObject)
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	{
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	RNullWriteStream stream;
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	TRAPD(err, stream << aObject);
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	if(err != KErrNone)
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		{
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		_LIT(KPanicCategory, "InValid Size");
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		User::Panic(KPanicCategory,ESerialisationPanic);
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		}
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	stream.Close();
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	return stream.BytesWritten();
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	}
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/**
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 * Externalize an object to a buffer.  Leaves if an error occurs.
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 */
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template <class T>
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void WriteL(const T& aIn, TDes8& aOut)
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	{
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	RDesWriteStream stream(aOut);
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	stream << aIn;
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	stream.Close();
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	}
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/**
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 * Externalize an object to a buffer.  In debug mode, it will panics if an error
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 * occurs - eg buffer is too short.  In release mode, errors are ignored.
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 */
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template <class T>
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void Write(const T& aIn, TDes8& aOut)
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	{
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	TRAPD(err, WriteL(aIn, aOut));
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	if(err != KErrNone)
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		{
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		_LIT(KPanicCategory, "Writing Error");
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		User::Panic(KPanicCategory,ESerialisationPanic);
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		}
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	}
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/**
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 * Implement Externalization selector for RPointerArrays to use a function.
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 */
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template <class T>
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EXTERNALIZE_FUNCTION(RPointerArray<T>)
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/**
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 * Function to externalize RPointerArrays.
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 *
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 * Although this is generic, it's currently only instantiated for CKeyInfo.
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 */
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template <class T>
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void ExternalizeL(const RPointerArray<T>& aIn, RWriteStream& aOut)
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	{
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	TInt count = aIn.Count();
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	aOut.WriteInt32L(count);
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	for (TInt i = 0 ; i < count ; ++i)
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		{
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		T* object = aIn[i];
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		if (object == NULL)
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			{
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			User::Leave(KErrArgument);
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			}
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		aOut << *object;
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		}
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	}
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/**
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 * Implement Externalization selector for RArrays to use a function.
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 */
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template <class T>
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EXTERNALIZE_FUNCTION(RArray<T>)
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/**
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 * Function to externalize RArrays.
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 */
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template <class T>
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void ExternalizeL(const RArray<T>& aIn, RWriteStream& aOut)
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	{
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	TInt count = aIn.Count();
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	aOut.WriteInt32L(count);
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	for (TInt i = 0 ; i < count ; ++i)
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		{
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		aOut << aIn[i];
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		}
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	}
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// No-so-generic internalization stuff /////////////////////////////////////////
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/**
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 * Internalize an object from a descriptor.
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 */
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template <class T>
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void ReadL(const TDesC8& aIn, T& aOut)
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	{
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	RDesReadStream stream(aIn);
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	stream >> aOut;
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	stream.Close();
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	}
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/**
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 * Implement Internalization selector for RArrays to use a function.
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 */
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template <class T>
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inline Internalize::Function Internalization(const RArray<T>*)
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	{
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	return Internalize::Function();
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	}
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/**
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 * Function to internalize an RArray.
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 */
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template <class T>
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void InternalizeL(RArray<T>& aOut, RReadStream& aIn)
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	{
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	ASSERT(aOut.Count() == 0);
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	TInt count = aIn.ReadInt32L();
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	for (TInt i = 0 ; i < count ; ++i)
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		{
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		T t;
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		aIn >> t;
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		User::LeaveIfError(aOut.Append(t));
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		}
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	}
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/**
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 * Internalize an object from a stream.  Creates an instance by calling the
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 * class' NewL(RReadStream&) method.
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 */
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template <class T>
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inline void CreateL(RReadStream& aIn, T*& aOut)
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	{
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	aOut = T::NewL(aIn);
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	}
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/**
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 * Internalize an object from a descriptor.  
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 */
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template <class T>
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void CreateL(const TDesC8& aIn, T& aOut)
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	{
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	RDesReadStream stream(aIn);
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	CreateL(stream, aOut);
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	stream.Close();
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	}
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/**
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 * Internalize an object from a descriptor leaving the result on the cleanup
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 * stack.  This is generic, but is only instantiated for RInteger.
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 */
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template <class T>
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void CreateLC(const TDesC8& aIn, T& aOut)
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	{
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	RDesReadStream stream(aIn);
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	CreateLC(stream, aOut);
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	stream.Close();
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	}
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/**
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 * Internalize a cryptotokens object from a descriptor.
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 */
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template <class T>
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void CreateL(const TDesC8& aIn, MCTToken& aToken, T& aOut)
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	{
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	RDesReadStream stream(aIn);
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	CreateL(stream, aToken, aOut);
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	stream.Close();
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	}
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/**
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 * Internalize a cryptotoken object from a stream.  Creates an instance by
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 * calling the class' NewL(RReadStream&, MCTToken&) method.
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 */
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template <class T>
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inline void CreateL(RReadStream& aIn, MCTToken& aToken, T*& aOut)
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	{
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	aOut = T::NewL(aIn, aToken);
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	}
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/**
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 * Internalize an array of of key info objects from a stream. 
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 */
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void CreateL(RReadStream& aIn, MCTToken& aToken, MKeyInfoArray& aOut)
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	{
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	TInt count = aIn.ReadInt32L();
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	for (TInt i = 0 ; i < count ; ++i)
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		{
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		CCTKeyInfo* t;
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		CreateL(aIn, aToken, t);
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		CleanupReleasePushL(*t);
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		User::LeaveIfError(aOut.Append(t));
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		CleanupStack::Pop();
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		}
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	}
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// can we combine this with the one above?
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/**
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 * Internalize an RMPointerArray of cryptotoken objects from a stream.
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 */
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template <class T>
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void CreateL(RReadStream& aIn, MCTToken& aToken, RMPointerArray<T>& aOut)
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	{	
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	TInt count = aIn.ReadInt32L();
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	for (TInt i = 0 ; i < count ; ++i)
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		{
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		T* t;
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		CreateL(aIn, aToken, t);
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		CleanupReleasePushL(*t);
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		User::LeaveIfError(aOut.Append(t));
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		CleanupStack::Pop();
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		}
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	}
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// Serialization for RIntegers /////////////////////////////////////////////////
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// This is exported as it is useful itself in the server
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/**
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 * Implement a CreateL function for internalizing HBufC8s.
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 */
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inline void CreateL(RReadStream& aIn, HBufC8*& aOut)
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	{
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	aOut = HBufC8::NewL(aIn, KMaxIntegerSize);
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	}
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/**
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 * Implement a CreateLC function for internalizing RIntegers. 
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 */
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EXPORT_C void CreateLC(RReadStream& aIn, RInteger& aOut)
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	{	
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	HBufC8* rBuf;
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	CreateL(aIn, rBuf);
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	CleanupStack::PushL(rBuf);
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	TPtr8 rPtr(rBuf->Des());	
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	aOut = RInteger::NewL(rPtr);
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	CleanupStack::PopAndDestroy(rBuf);
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	CleanupStack::PushL(aOut);
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	}
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/**
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 * Externalize an RInteger.
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 */
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EXPORT_C void ExternalizeL(const TInteger& aIn, RWriteStream& aOut)
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	{
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	HBufC8* sBuf = aIn.BufferLC();
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	aOut << *sBuf;
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	CleanupStack::PopAndDestroy(sBuf);	
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	}
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// Externalization for signature objects ///////////////////////////////////////
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/**
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 * Implement Externalization selector for CDSASignature to use a function.
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 */
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EXTERNALIZE_FUNCTION(CDSASignature)
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/**
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 * Externalise a DSA signature object.
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 */
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void ExternalizeL(const CDSASignature& aIn, RWriteStream& aOut)
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	{
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	aOut << aIn.R();
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	aOut << aIn.S();
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	}
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/**
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 * Implement Externalization selector for CRSASignature to use a function.
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 */
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EXTERNALIZE_FUNCTION(CRSASignature)
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/**
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 * Externalize an RSA signature object.
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 */
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void ExternalizeL(const CRSASignature& aIn, RWriteStream& aOut)
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	{
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	aOut << aIn.S();
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	}
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// Internalization for signature objects ///////////////////////////////////////
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/**
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 * Specialise CreateL for CRSASignature.
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 */
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template <>
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void CreateL(RReadStream& aIn, CRSASignature*& aOut)
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	{
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	RInteger r;
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	CreateLC(aIn, r);
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	aOut = CRSASignature::NewL(r);
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	CleanupStack::Pop(); // r
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	}
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/**
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 * Specialise CreateL for CDSASignature.
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 */
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template <>
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void CreateL(RReadStream& aIn, CDSASignature*& aOut)
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	{
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	RInteger r;
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	CreateLC(aIn, r);
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	RInteger s;
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	CreateLC(aIn, s);
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	aOut = CDSASignature::NewL(r, s);
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	CleanupStack::Pop(2); // s, r
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	}
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// Serialization for DH ojects /////////////////////////////////////////////////
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/**
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 * Implement Externalization selector for CDHParams to use a function.
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 */
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EXTERNALIZE_FUNCTION(CDHParams)
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/**
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 * Externalise a TDHParams object.
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 */
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void ExternalizeL(const CDHParams& aIn, RWriteStream& aOut)
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	{
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	aOut << aIn.N();
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	aOut << aIn.G();
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	}
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/**
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 * Specialise CreateL for CDHParams.
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 */
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template <>
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void CreateL(RReadStream& aIn, CDHParams*& aOut)
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	{
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	RInteger n;
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	CreateLC(aIn, n);
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	RInteger g;
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	CreateLC(aIn, g);
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	aOut = CDHParams::NewL(n, g);
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	CleanupStack::PopAndDestroy(2, &n); // g, n
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	}
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/**
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 * Implement Externalization selector for CDHPublicKey to use a function.
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 */
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EXTERNALIZE_FUNCTION(CDHPublicKey)
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/**
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 * Externalise a CDHPublicKey object.
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 */
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void ExternalizeL(const CDHPublicKey& aIn, RWriteStream& aOut)
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	{
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	aOut << aIn.N();
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	aOut << aIn.G();
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	aOut << aIn.X();
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	}
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/**
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 * Specialise CreateL for CDHPublicKey.
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 */
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template <>
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void CreateL(RReadStream& aIn, CDHPublicKey*& aOut)
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	{
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	RInteger n;
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	CreateLC(aIn, n);
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	RInteger g;
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	CreateLC(aIn, g);
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	RInteger X;
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	CreateLC(aIn, X);
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	aOut = CDHPublicKey::NewL(n, g, X);
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	CleanupStack::Pop(3); // X, g, n
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	}
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// Common //////////////////////////////////////////////////////////////////////
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EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, RArray<TUid>& aOut)
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	{
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	::ReadL(aIn, aOut);
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	}
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EXPORT_C TInt TokenDataMarshaller::Size(const CKeyInfoBase& aIn)
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	{
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	return ::Size(aIn);
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	}
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EXPORT_C void TokenDataMarshaller::Write(const CKeyInfoBase& aIn, TDes8& aOut)
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	{
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	::Write(aIn, aOut);
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	}
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EXPORT_C TInt TokenDataMarshaller::Size(const RArray<TUid>& aIn)
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	{
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	return ::Size(aIn);
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	}
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EXPORT_C void TokenDataMarshaller::Write(const RArray<TUid>& aIn, TDes8& aOut)
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	{
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	::Write(aIn, aOut);
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	}
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EXPORT_C TInt TokenDataMarshaller::Size(const MCertInfo& aIn)
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	{
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	return ::Size(aIn);
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	}
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EXPORT_C void TokenDataMarshaller::Write(const MCertInfo& aIn, TDes8& aOut)
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	{
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	::Write(aIn, aOut);
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	}
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// Client //////////////////////////////////////////////////////////////////////
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EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, MCTToken& aToken, MKeyInfoArray& aOut)
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	{
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	::CreateL(aIn, aToken, aOut);
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	}
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EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, MCTToken& aToken, CCTKeyInfo*& aOut)
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	{
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	::CreateL(aIn, aToken, aOut);
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	}
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EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, CDSASignature*& aOut)
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	{
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   454
	::CreateL(aIn, aOut);
sl@0
   455
	}
sl@0
   456
sl@0
   457
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, CRSASignature*& aOut)
sl@0
   458
	{
sl@0
   459
	::CreateL(aIn, aOut);
sl@0
   460
	}
sl@0
   461
sl@0
   462
EXPORT_C TInt TokenDataMarshaller::Size(const CDHParams& aIn)
sl@0
   463
	{
sl@0
   464
    return Size(aIn.N()) + Size(aIn.G());
sl@0
   465
	}
sl@0
   466
sl@0
   467
EXPORT_C void TokenDataMarshaller::WriteL(const CDHParams& aIn, TDes8& aOut)
sl@0
   468
	{
sl@0
   469
	::WriteL(aIn, aOut);
sl@0
   470
	}
sl@0
   471
sl@0
   472
EXPORT_C TInt TokenDataMarshaller::Size(const CDHPublicKey& aIn)
sl@0
   473
	{
sl@0
   474
	return Size(aIn.N()) + Size(aIn.G()) + Size(aIn.X());
sl@0
   475
	}
sl@0
   476
sl@0
   477
EXPORT_C void TokenDataMarshaller::WriteL(const CDHPublicKey& aIn, TDes8& aOut)
sl@0
   478
	{
sl@0
   479
	::WriteL(aIn, aOut);
sl@0
   480
	}
sl@0
   481
sl@0
   482
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, RInteger& aInteger)
sl@0
   483
	{
sl@0
   484
	::CreateLC(aIn, aInteger);
sl@0
   485
	CleanupStack::Pop();
sl@0
   486
	}
sl@0
   487
	
sl@0
   488
EXPORT_C TInt TokenDataMarshaller::Size(const CPBEncryptParms& aIn)
sl@0
   489
	{
sl@0
   490
	return ::Size(aIn);
sl@0
   491
	}
sl@0
   492
	
sl@0
   493
EXPORT_C void TokenDataMarshaller::Write(const CPBEncryptParms& aIn,  TDes8& aOut)
sl@0
   494
	{
sl@0
   495
	::Write(aIn, aOut);	
sl@0
   496
	}
sl@0
   497
sl@0
   498
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, MCTToken& aToken, RMPointerArray<CCTCertInfo>& aOut)
sl@0
   499
	{
sl@0
   500
	::CreateL(aIn, aToken, aOut);
sl@0
   501
	}
sl@0
   502
sl@0
   503
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, MCTToken& aToken, CCTCertInfo*& aOut)
sl@0
   504
	{
sl@0
   505
	::CreateL(aIn, aToken, aOut);
sl@0
   506
	}
sl@0
   507
sl@0
   508
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, RArray<TCertificateAppInfo>& aOut)
sl@0
   509
	{
sl@0
   510
	::ReadL(aIn, aOut);
sl@0
   511
	}
sl@0
   512
sl@0
   513
EXPORT_C TInt TokenDataMarshaller::Size(const CCertAttributeFilter& aIn)
sl@0
   514
	{
sl@0
   515
	return ::Size(aIn);
sl@0
   516
	}
sl@0
   517
sl@0
   518
EXPORT_C void TokenDataMarshaller::WriteL(const CCertAttributeFilter& aIn, TDes8& aOut)
sl@0
   519
	{
sl@0
   520
	::WriteL(aIn, aOut);
sl@0
   521
	}
sl@0
   522
sl@0
   523
// Server //////////////////////////////////////////////////////////////////////
sl@0
   524
sl@0
   525
EXPORT_C TInt TokenDataMarshaller::Size(const RPointerArray<CKeyInfo>& aIn)
sl@0
   526
	{
sl@0
   527
	return ::Size(aIn);
sl@0
   528
	}
sl@0
   529
	
sl@0
   530
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, CPBEncryptParms*& aOut)
sl@0
   531
	{
sl@0
   532
	::CreateL(aIn, aOut);	
sl@0
   533
	}
sl@0
   534
sl@0
   535
EXPORT_C void TokenDataMarshaller::Write(const RPointerArray<CKeyInfo>& aIn, TDes8& aOut)
sl@0
   536
	{
sl@0
   537
	::Write(aIn, aOut);
sl@0
   538
	}
sl@0
   539
sl@0
   540
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, CKeyInfo*& aOut)
sl@0
   541
	{
sl@0
   542
	::CreateL(aIn, aOut);
sl@0
   543
	}
sl@0
   544
sl@0
   545
/**
sl@0
   546
 * Determine the size of an externalized big integer.  This assumes that the
sl@0
   547
 * size of the buffer returned by TInteger::BufferLC() is the same as the size
sl@0
   548
 * of the integer as returned by TInteger::ByteCount().  This is done to avoid
sl@0
   549
 * allocating the buffer just so we can tell how big it is.
sl@0
   550
 */
sl@0
   551
EXPORT_C TInt TokenDataMarshaller::Size(const TInteger& aIn)
sl@0
   552
	{
sl@0
   553
	// This is an overestimate as the length is encoded with a TCardinality
sl@0
   554
	return sizeof(TInt32) + aIn.ByteCount();
sl@0
   555
	}
sl@0
   556
sl@0
   557
EXPORT_C TInt TokenDataMarshaller::Size(const CDSASignature& aIn)
sl@0
   558
	{
sl@0
   559
	return Size(aIn.R()) + Size(aIn.S());
sl@0
   560
	}
sl@0
   561
sl@0
   562
EXPORT_C void TokenDataMarshaller::WriteL(const CDSASignature& aIn, TDes8& aOut)
sl@0
   563
	{
sl@0
   564
	::WriteL(aIn, aOut);
sl@0
   565
	}
sl@0
   566
sl@0
   567
EXPORT_C TInt TokenDataMarshaller::Size(const CRSASignature& aIn)
sl@0
   568
	{
sl@0
   569
	return Size(aIn.S());
sl@0
   570
	}
sl@0
   571
sl@0
   572
EXPORT_C void TokenDataMarshaller::WriteL(const CRSASignature& aIn, TDes8& aOut)
sl@0
   573
	{
sl@0
   574
	::WriteL(aIn, aOut);
sl@0
   575
	}
sl@0
   576
sl@0
   577
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, CDHParams*& aOut)
sl@0
   578
	{
sl@0
   579
	::CreateL(aIn, aOut);
sl@0
   580
	}
sl@0
   581
sl@0
   582
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, CDHPublicKey*& aOut)
sl@0
   583
	{
sl@0
   584
	::CreateL(aIn, aOut);
sl@0
   585
	}
sl@0
   586
sl@0
   587
EXPORT_C void TokenDataMarshaller::WriteL(const TInteger& aIn, TDes8& aOut)
sl@0
   588
	{
sl@0
   589
	::WriteL(aIn, aOut);
sl@0
   590
	}
sl@0
   591
sl@0
   592
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, CCertInfo*& aOut)
sl@0
   593
	{
sl@0
   594
	::CreateL(aIn, aOut);
sl@0
   595
	}
sl@0
   596
sl@0
   597
EXPORT_C TInt TokenDataMarshaller::Size(const RPointerArray<CCertInfo>& aIn)
sl@0
   598
	{
sl@0
   599
	return ::Size(aIn);
sl@0
   600
	}
sl@0
   601
sl@0
   602
EXPORT_C void TokenDataMarshaller::Write(const RPointerArray<CCertInfo>& aIn, TDes8& aOut)
sl@0
   603
	{
sl@0
   604
	::Write(aIn, aOut);
sl@0
   605
	}
sl@0
   606
sl@0
   607
EXPORT_C TInt TokenDataMarshaller::Size(const RArray<TCertificateAppInfo>& aIn)
sl@0
   608
	{
sl@0
   609
	return ::Size(aIn);
sl@0
   610
	}
sl@0
   611
   
sl@0
   612
EXPORT_C void TokenDataMarshaller::Write(const RArray<TCertificateAppInfo>& aIn, TDes8& aOut)
sl@0
   613
	{
sl@0
   614
	::Write(aIn, aOut);
sl@0
   615
	}   
sl@0
   616
sl@0
   617
EXPORT_C void TokenDataMarshaller::ReadL(const TDesC8& aIn, CCertAttributeFilter*& aOut)
sl@0
   618
	{
sl@0
   619
	::CreateL(aIn, aOut);
sl@0
   620
	}