diff -r 000000000000 -r ba25891c3a9e installationservices/swi/source/sisfile/sissignature.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/installationservices/swi/source/sisfile/sissignature.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,95 @@
+/*
+* Copyright (c) 2004-2009 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: 
+* Definition of the Swi::Sis::CSignature
+*
+*/
+
+
+/**
+ @file sissignature.cpp
+*/
+
+#include "sissignature.h"
+#include "sissignaturealgorithm.h"
+
+using namespace Swi::Sis;
+
+EXPORT_C /*static*/ CSignature* CSignature::NewLC(MSisDataProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
+	{
+	CSignature* self = new(ELeave) CSignature();
+	CleanupStack::PushL(self);
+	self->ConstructL(aDataProvider, aBytesRead, aTypeReadBehaviour);
+	return self;
+	}
+
+EXPORT_C /*static*/ CSignature* CSignature::NewL(MSisDataProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
+	{
+	CSignature* self = NewLC(aDataProvider, aBytesRead, aTypeReadBehaviour);
+	CleanupStack::Pop(self);
+	return self;
+	}
+	
+EXPORT_C CSignature* CSignature::NewLC(TPtrProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
+	{
+	CSignature* self = new (ELeave) CSignature;
+	CleanupStack::PushL(self);
+	self->ConstructL(aDataProvider, aBytesRead, aTypeReadBehaviour);
+	return self;
+	}
+
+EXPORT_C CSignature* CSignature::NewL(TPtrProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
+	{
+	CSignature* self = CSignature::NewLC(aDataProvider, aBytesRead, aTypeReadBehaviour);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+CSignature::CSignature()
+	{
+	}
+
+EXPORT_C CSignature::~CSignature()
+	{
+	delete iAlgorithm;
+	delete iData;
+	}
+
+void CSignature::ConstructL(MSisDataProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
+	{
+	TInt64 fieldOffset = aBytesRead;
+	
+	CField::ConstructL(aDataProvider, EFieldTypeSignature, aBytesRead, aTypeReadBehaviour);
+
+	iAlgorithm=CSignatureAlgorithm::NewL(aDataProvider, aBytesRead);
+	iData=CBlob::NewL(aDataProvider, aBytesRead);
+	
+	CField::SkipUnknownFieldsL(aDataProvider, aBytesRead - fieldOffset, aBytesRead, aTypeReadBehaviour);
+	CField::EnsureAlignedL(aDataProvider, aBytesRead - fieldOffset, aBytesRead, aTypeReadBehaviour);	
+	}
+	
+	
+void CSignature::ConstructL(TPtrProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
+	{
+	TInt64 fieldOffset = aBytesRead;
+	
+	CField::ConstructL(aDataProvider, EFieldTypeSignature, aBytesRead, aTypeReadBehaviour);
+
+	iAlgorithm=CSignatureAlgorithm::NewL(aDataProvider, aBytesRead);
+	iData=CBlob::NewL(aDataProvider, aBytesRead);
+	
+	CField::SkipUnknownFieldsL(aDataProvider, aBytesRead - fieldOffset, aBytesRead, aTypeReadBehaviour);
+	CField::EnsureAlignedL(aDataProvider, aBytesRead - fieldOffset, aBytesRead, aTypeReadBehaviour);	
+	}
+