--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoservices/certificateandkeymgmt/pkcs12/pkcs12.cpp	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,237 @@
+/*
+* Copyright (c) 2005-2009 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: 
+*
+*/
+
+
+#include "pkcs12.h"
+
+using namespace PKCS12;
+
+CDecPkcs12::CDecPkcs12()
+	{
+	}
+	
+EXPORT_C CDecPkcs12* CDecPkcs12::NewL(const TDesC8& aRawData) 
+    {
+    CDecPkcs12* self = NewLC(aRawData);
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+EXPORT_C CDecPkcs12* CDecPkcs12::NewLC(const TDesC8& aRawData) 
+    { 
+    CDecPkcs12* self = new (ELeave) CDecPkcs12;
+    CleanupStack::PushL(self);
+    self->ConstructL(aRawData);
+    return self;
+    }
+
+EXPORT_C CDecPkcs12* CDecPkcs12::NewL(RReadStream& aStream) 
+    {
+    CDecPkcs12* self = NewLC(aStream);
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+EXPORT_C CDecPkcs12* CDecPkcs12::NewLC(RReadStream& aStream) 
+    { 
+    CDecPkcs12* self = new (ELeave) CDecPkcs12;
+    CleanupStack::PushL(self);
+    self->InternalizeL(aStream);
+    return self;
+    }
+
+CDecPkcs12::~CDecPkcs12()
+	{
+	iContentInfos.ResetAndDestroy();
+	iContentInfos.Close();
+	delete iAuthenticatedSafeData;
+	delete iMacData;	
+	}
+    
+void CDecPkcs12::ConstructL(const TDesC8& aRawData)
+	{	
+	TASN1DecGeneric decGen(aRawData);
+	decGen.InitL();
+	if(decGen.Tag() != EASN1Sequence || decGen.Class() != EUniversal)
+		{
+		User::Leave(KErrArgument);
+		}
+		
+	// aRawData conatins PFX Sequence
+	TASN1DecSequence decSeq;
+	CArrayPtr<TASN1DecGeneric>* seqContents = decSeq.DecodeDERLC(decGen);
+
+    // Check if both the version and the authSafe are present, since macData is optional, 
+	TInt pfxCount = seqContents->Count();
+	if (pfxCount > 3 || pfxCount < 2)
+		{
+		User::Leave(KErrArgument);
+		}
+				
+	// Decodes Version, Version is an Integer
+	const TASN1DecGeneric* seqContentsAt0 = seqContents->At(0);
+	if (seqContentsAt0->Tag() != EASN1Integer || seqContentsAt0->Class() != EUniversal)
+		{
+		User::Leave(KErrArgument);
+		}
+	TASN1DecInteger intDecoder;
+	iVersion = intDecoder.DecodeDERShortL(*seqContentsAt0);
+	if (iVersion != KPkcs12Version)
+		{
+		User::Leave(KErrArgument);
+		}
+	
+	// Decodes the AuthSafe, AuthSafe is a Sequence
+	// If AuthSafe is not present then leave
+	const TASN1DecGeneric* seqContentsAt1 = seqContents->At(1);
+	if(seqContentsAt1->Tag() != EASN1Sequence || seqContentsAt1->Class() != EUniversal)
+		{
+		User::Leave(KErrArgument);
+		}
+	
+	TASN1DecSequence authSafeSeq;
+	CArrayPtr<TASN1DecGeneric>* authSafeContents = authSafeSeq.DecodeDERLC(*seqContentsAt1);
+	const TASN1DecGeneric* authSafeContentsAt0 = authSafeContents->At(0);
+	if(authSafeContentsAt0->Tag() == EASN1ObjectIdentifier || authSafeContentsAt0->Class() == EUniversal)
+		{
+		TASN1DecObjectIdentifier oid;
+		HBufC* objectId = oid.DecodeDERL(*authSafeContentsAt0);
+		CleanupStack::PushL(objectId);
+		if(*objectId == KPkcs7DataOID || *objectId == KPkcs7SignedDataOID)
+			{
+			// Decode this Sequence, If there is an OID for Data/Signed Data then use PKCS7 library
+			iAuthenticatedSafeData = CPKCS7ContentInfo::NewL(seqContentsAt1->Encoding());
+			}
+		else
+			{
+			User::Leave(KErrArgument);
+			}
+		CleanupStack::PopAndDestroy(objectId);
+		}
+	// AuthSafe is absent
+	else 
+		{
+		User::Leave(KErrArgument);
+		}
+	
+	// Integrity Mode	
+	if(iAuthenticatedSafeData->ContentType() == KPkcs7Data)
+		{
+		iMode = EPasswordIntegrityMode;	
+		}
+	else if(iAuthenticatedSafeData->ContentType() == KPkcs7SignedData)
+		{
+		iMode = EPublicKeyIntegrityMode;
+		}
+	
+	TPtrC8 contentData(KNullDesC8);
+	// In case of Password Integrity Mode, ContentType is Data
+	if(iMode == EPasswordIntegrityMode)
+		{
+		// Check if MacData is present, Decodes MacData
+		if (seqContents->Count() == 3)
+  			{
+  			const TASN1DecGeneric* seqContentsAt2 = seqContents->At(2);
+    		if (seqContentsAt2->Tag() != EASN1Null || seqContentsAt2->Class() == EUniversal)
+				{
+				iMacData = CDecPkcs12MacData::NewL(seqContentsAt2->Encoding(),iAuthenticatedSafeData->ContentData());
+			    } 
+			}
+		contentData.Set(iAuthenticatedSafeData->ContentData());
+		}
+    // Public-Key Integrity Mode, ContentType is SignedData
+	else if(iMode == EPublicKeyIntegrityMode)
+		{
+		// Create a pkcs7signed data object
+		CPKCS7SignedObject* signedData = CPKCS7SignedObject::NewL(*iAuthenticatedSafeData);
+		CleanupStack::PushL(signedData);
+		// Obtain the ContentInfo present in Signed Data
+		const CPKCS7ContentInfo* contentInfo = &(signedData->ContentInfo());
+		
+		// Get the type of ContentInfo
+		if (contentInfo->ContentType() != KPkcs7Data)
+			{
+			User::Leave(KErrNotSupported);
+			}
+		contentData.Set(contentInfo->ContentData());
+		CleanupStack::PopAndDestroy(signedData);
+		}
+	else
+		{
+		User::Leave(KErrArgument);
+		}
+
+	TASN1DecGeneric decGen1(contentData);
+	decGen1.InitL(); 					
+	if(decGen1.Tag() != EASN1Sequence || decGen1.Class() != EUniversal)      
+		{
+		User::Leave(KErrArgument);
+		}
+	
+	// Desequence the ContentData present in ContentInfo which is in AuthSafe
+    TASN1DecSequence seq;
+    CArrayPtr<TASN1DecGeneric>* contentInfoSequences = seq.DecodeDERLC(decGen1);
+    
+    // The number of ContentInfos present         
+    TInt contentInfoCount = contentInfoSequences->Count();
+                    
+    for(TInt index =0; index < contentInfoCount; index++)
+    	{
+        CPKCS7ContentInfo* contentInfo = CPKCS7ContentInfo::NewL(contentInfoSequences->At(index)->Encoding());
+        CleanupStack::PushL(contentInfo);
+        iContentInfos.AppendL(contentInfo);
+        CleanupStack::Pop(contentInfo);
+        }
+	CleanupStack::PopAndDestroy(3,seqContents); // seqContents, authSafeContents, contentInfoSequences
+  	} 
+
+void CDecPkcs12::InternalizeL(RReadStream& aStream)
+	{
+	MStreamBuf* streamBuf = aStream.Source();
+	TInt pos = streamBuf->SizeL();
+	streamBuf->SeekL(MStreamBuf::ERead, EStreamBeginning, 0);
+	HBufC8* temp= HBufC8::NewLC(pos);	
+	TPtr8 ptr = temp->Des();	
+	aStream.ReadL(ptr,pos);	
+    ConstructL(*temp);    
+	CleanupStack::PopAndDestroy(temp); 
+	}	
+
+EXPORT_C TInt CDecPkcs12::Version() const
+	{
+	return iVersion;
+   	}
+
+EXPORT_C CDecPkcs12::TIntegrityMode CDecPkcs12::IntegrityMode() const
+	{
+	return iMode;
+   	}
+	
+EXPORT_C const RPointerArray<CPKCS7ContentInfo>& CDecPkcs12::AuthenticatedSafeContents() const
+	{
+	return iContentInfos;
+	}
+
+EXPORT_C const CPKCS7ContentInfo& CDecPkcs12::AuthenticatedSafe() const
+	{
+	return *iAuthenticatedSafeData;
+	}
+
+EXPORT_C const CDecPkcs12MacData* CDecPkcs12::MacData() const
+	{
+	return iMacData;
+	}