--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoservices/certificateandkeymgmt/pkcs7/cmssignerinfo.cpp	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,302 @@
+/*
+* 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: 
+*
+*/
+
+
+#include <cmssignerinfo.h>
+#include <asn1dec.h>
+#include <asn1enc.h>
+#include <x509cert.h>
+#include <cmssigneridentifier.h>
+#include <cmsdefs.h>
+#include "cmsutils.h"
+#include "pkcs7asn1.h"
+
+//
+// Implementation of CCmsSignerInfo
+//
+CCmsSignerInfo* CCmsSignerInfo::NewL(const TDesC8& aDataToBeSigned,
+									TBool aIsHash,
+									const CDSAPrivateKey& aKey,
+									CCmsSignerIdentifier* aSignerIdentifier,
+									CX509AlgorithmIdentifier* aDigestAlgorithm,
+									CX509AlgorithmIdentifier* aSignatureAlgorithm)
+	{
+	CCmsSignerInfo* self = NewLC(aDataToBeSigned,
+								 aIsHash,
+								 aKey,
+								 aSignerIdentifier,
+								 aDigestAlgorithm,
+								 aSignatureAlgorithm);
+	CleanupStack::Pop(self);
+	return self;
+	}
+										
+CCmsSignerInfo* CCmsSignerInfo::NewLC(const TDesC8& aDataToBeSigned,
+									TBool aIsHash,
+									const CDSAPrivateKey& aKey,
+									CCmsSignerIdentifier* aSignerIdentifier,
+									CX509AlgorithmIdentifier* aDigestAlgorithm,
+									CX509AlgorithmIdentifier* aSignatureAlgorithm)
+	{
+	if (!aSignerIdentifier||!aDigestAlgorithm||!aSignatureAlgorithm)
+		{
+		User::Leave(KErrArgument);	
+		}
+	CCmsSignerInfo* self = new (ELeave) CCmsSignerInfo();
+	CleanupStack::PushL(self);
+	self->ConstructL(aDataToBeSigned, aIsHash, aKey, aSignerIdentifier, aDigestAlgorithm, aSignatureAlgorithm);
+	return self;
+	}
+
+CCmsSignerInfo* CCmsSignerInfo::NewL(const TDesC8& aDataToBeSigned,
+									TBool aIsHash,
+									const CRSAPrivateKey& aKey,
+									CCmsSignerIdentifier* aSignerIdentifier,
+									CX509AlgorithmIdentifier* aDigestAlgorithm,
+									CX509AlgorithmIdentifier* aSignatureAlgorithm)
+	{
+	CCmsSignerInfo* self = NewLC(aDataToBeSigned,
+								 aIsHash,
+								 aKey,
+								 aSignerIdentifier,
+								 aDigestAlgorithm,
+								 aSignatureAlgorithm);
+	CleanupStack::Pop(self);
+	return self;		
+	}
+
+CCmsSignerInfo* CCmsSignerInfo::NewLC(const TDesC8& aDataToBeSigned,
+									TBool aIsHash,
+									const CRSAPrivateKey& aKey,
+									CCmsSignerIdentifier* aSignerIdentifier,
+									CX509AlgorithmIdentifier* aDigestAlgorithm,
+									CX509AlgorithmIdentifier* aSignatureAlgorithm)
+	{
+	if (!aSignerIdentifier||!aDigestAlgorithm||!aSignatureAlgorithm)
+		{
+		User::Leave(KErrArgument);	
+		}
+
+	CCmsSignerInfo* self = new (ELeave) CCmsSignerInfo();
+	CleanupStack::PushL(self);
+	self->ConstructL(aDataToBeSigned, aIsHash, aKey, aSignerIdentifier, aDigestAlgorithm, aSignatureAlgorithm);
+	return self;
+	}
+
+CCmsSignerInfo* CCmsSignerInfo::NewL(const TDesC8& aRawData)
+	{
+	CCmsSignerInfo* self = NewLC(aRawData);
+	CleanupStack::Pop(self);
+	return self;
+	}
+	
+CCmsSignerInfo* CCmsSignerInfo::NewLC(const TDesC8& aRawData)
+	{
+	CCmsSignerInfo* self = new (ELeave) CCmsSignerInfo();
+	CleanupStack::PushL(self);
+	self->ConstructL(aRawData);
+	return self;
+	}
+
+CCmsSignerInfo::CCmsSignerInfo()
+	{	
+	}
+	
+CCmsSignerInfo::~CCmsSignerInfo()
+	{
+	delete iDigestAlgorithm;
+	delete iSignatureAlgorithm;
+	delete iSignatureValue;	
+	delete iSignerIdentifier;
+	}
+
+void CCmsSignerInfo::ConstructL(const TDesC8& aDataToBeSigned, 	
+								TBool aIsHash, 
+								const CDSAPrivateKey& aKey,
+								CCmsSignerIdentifier* aSignerIdentifier,
+								CX509AlgorithmIdentifier* aDigestAlgorithm,
+								CX509AlgorithmIdentifier* aSignatureAlgorithm)
+								
+	{
+	if (aSignatureAlgorithm->Algorithm()!=EDSA)
+		{
+		User::Leave(KErrArgument);	
+		}
+	iSignatureValue=CmsUtils::CreateSignatureL(aDataToBeSigned, aIsHash, aDigestAlgorithm->Algorithm(), aKey);
+	
+	iSignerIdentifier=aSignerIdentifier;
+	iDigestAlgorithm=aDigestAlgorithm;
+	iSignatureAlgorithm=aSignatureAlgorithm;
+	//find out the CMS signer info version
+	if (iSignerIdentifier->SignerIdentifierType() == CCmsSignerIdentifier::EIssuerAndSerialNumber)
+		{
+		iVersion=EVersion_1;
+		}
+	else if (iSignerIdentifier->SignerIdentifierType() == CCmsSignerIdentifier::ESubjectKeyIdentifier)
+		{
+		iVersion=EVersion_3;	
+		}	
+	
+	}
+
+void CCmsSignerInfo::ConstructL(const TDesC8& aDataToBeSigned, 	
+								TBool aIsHash, 
+								const CRSAPrivateKey& aKey,
+								CCmsSignerIdentifier* aSignerIdentifier,
+								CX509AlgorithmIdentifier* aDigestAlgorithm,
+								CX509AlgorithmIdentifier* aSignatureAlgorithm)								
+	{
+	if (aSignatureAlgorithm->Algorithm()!=ERSA)
+		{
+		User::Leave(KErrArgument);	
+		}
+	iSignatureValue=CmsUtils::CreateSignatureL(aDataToBeSigned, aIsHash, aDigestAlgorithm->Algorithm(), aKey);
+	iSignerIdentifier=aSignerIdentifier;
+	iDigestAlgorithm=aDigestAlgorithm;
+	iSignatureAlgorithm=aSignatureAlgorithm;
+	//find out the CMS signer info version
+	if (iSignerIdentifier->SignerIdentifierType() == CCmsSignerIdentifier::EIssuerAndSerialNumber)
+		{
+		iVersion=EVersion_1;
+		}
+	else if (iSignerIdentifier->SignerIdentifierType() == CCmsSignerIdentifier::ESubjectKeyIdentifier)
+		{
+		iVersion=EVersion_3;	
+		}
+	}
+
+void CCmsSignerInfo::ConstructL(const TDesC8& aRawData)
+	{
+	CArrayPtr<TASN1DecGeneric>* signerInfo = PKCS7ASN1::DecodeSequenceLC(aRawData, 5, 7);
+	TASN1DecInteger decInt;
+	TInt pos = 0;
+	// decodes version
+	iVersion = decInt.DecodeDERShortL(*signerInfo->At(pos++));
+	if (iVersion<0 || iVersion>4)
+		{
+		User::Leave(KErrArgument);	
+		}
+
+	DecodeSignerIdentifierL(signerInfo->At(pos++)->Encoding());
+	
+	iDigestAlgorithm = CX509AlgorithmIdentifier::NewL(signerInfo->At(pos++)->Encoding());
+
+	if(signerInfo->At(pos)->Tag() == 0 && signerInfo->At(pos)->Class() == EContextSpecific)
+		{
+		// authenticated attributes not supported at this time
+		iSignedAttributesPresent=ETrue;
+		pos++;
+		}
+	iSignatureAlgorithm = CX509AlgorithmIdentifier::NewL(signerInfo->At(pos++)->Encoding());
+	DecodeEncryptedDigestL(signerInfo->At(pos++)->Encoding());
+
+	if(pos < signerInfo->Count() && signerInfo->At(pos)->Tag() == 1 && signerInfo->At(pos)->Class() == EContextSpecific)
+		{
+		// unauthenticated attributes not supported at this time
+		iUnsignedAttributesPresent=ETrue;
+		pos++;		
+		}
+
+	CleanupStack::PopAndDestroy(signerInfo);
+	}
+	
+CASN1EncSequence* CCmsSignerInfo::EncodeASN1DERLC() const
+	{
+	// the root sequence contains the signed object
+	CASN1EncSequence* root = CASN1EncSequence::NewLC();
+	
+	//Encode the version
+	CASN1EncInt* version=CASN1EncInt::NewLC(iVersion);	
+	root->AddAndPopChildL(version);
+	
+	//Encode sid
+	CASN1EncBase* sid=EncodeSignerIdentifierLC();
+	root->AddAndPopChildL(sid);
+	
+	//Encode Digest Algoritm
+	CASN1EncSequence* digAlg=iDigestAlgorithm->EncodeASN1DERLC();
+	root->AddAndPopChildL(digAlg);
+	
+	//Encode signature Algoritm
+	CASN1EncSequence* sigAlg=iSignatureAlgorithm->EncodeASN1DERLC();
+	root->AddAndPopChildL(sigAlg);
+	
+	//Encode signature value
+	CASN1EncOctetString* sigEnc=CASN1EncOctetString::NewLC(iSignatureValue->Des());
+	root->AddAndPopChildL(sigEnc);
+	
+	return root;	
+	}
+	
+void CCmsSignerInfo::DecodeEncryptedDigestL(const TDesC8& aRawData)
+	{
+	CmsUtils::DecodeOctetStringL(aRawData, iSignatureValue);
+	}
+
+void CCmsSignerInfo::DecodeSignerIdentifierL(const TDesC8& aRawData)
+	{
+	iSignerIdentifier=CCmsSignerIdentifier::NewL(aRawData);
+	}
+
+CASN1EncBase* CCmsSignerInfo::EncodeSignerIdentifierLC() const
+	{
+	return iSignerIdentifier->EncodeASN1DERLC();	
+	}
+
+EXPORT_C TInt CCmsSignerInfo::Version() const
+	{
+	return iVersion;
+	}
+
+EXPORT_C TBool CCmsSignerInfo::IsSignedAttributesPresent() const
+	{
+	return iSignedAttributesPresent;	
+	}
+
+EXPORT_C TBool CCmsSignerInfo::IsUnsignedAttributesPresent() const
+	{
+	return iUnsignedAttributesPresent;	
+	}
+	
+EXPORT_C const CX509AlgorithmIdentifier& CCmsSignerInfo::DigestAlgorithm() const
+	{
+	return *iDigestAlgorithm;	
+	}
+
+EXPORT_C const CX509AlgorithmIdentifier& CCmsSignerInfo::SignatureAlgorithm() const	
+	{
+	return *iSignatureAlgorithm;	
+	}
+
+EXPORT_C const TPtrC8 CCmsSignerInfo::SignatureValue() const
+	{
+	return *iSignatureValue;	
+	}
+	
+EXPORT_C const CCmsSignerIdentifier& CCmsSignerInfo::SignerIdentifier() const
+	{
+	return *iSignerIdentifier;
+	}
+
+
+
+
+
+	
+	
+	
+