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/*
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* Copyright (c) 2006-2009 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 <cmssignedobject.h>
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#include <x509cert.h>
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#include <x509certext.h>
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#include <asymmetrickeys.h>
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#include <hash.h>
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#include <asn1enc.h>
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#include <asn1dec.h>
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#include <pkcs7excert.h>
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#include <cmssigneridentifier.h>
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#include <cmscontentinfo.h>
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#include <cmssignerinfo.h>
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#include "cmsutils.h"
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#include "pkcs7asn1.h"
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const TInt KSignedDataCertificates = 0;
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const TInt KSignedDataRevocationLists = 1;
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const TInt KCmsMinSignedDataElements = 4;
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//
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// Implementation of CMS Signed object
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//
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EXPORT_C CCmsSignedObject* CCmsSignedObject::NewLC(TCmsContentInfoType aType, TBool aIsDetached, const TDesC8& aContentData)
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{
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CCmsSignedObject* self = new (ELeave) CCmsSignedObject();
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CleanupStack::PushL(self);
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self->ConstructL(aType, aIsDetached, aContentData);
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return self;
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}
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EXPORT_C CCmsSignedObject* CCmsSignedObject::NewL(TCmsContentInfoType aType, TBool aIsDetached, const TDesC8& aContentData)
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{
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CCmsSignedObject* self = NewLC(aType, aIsDetached, aContentData);
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CleanupStack::Pop(self);
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return self;
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}
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EXPORT_C CCmsSignedObject* CCmsSignedObject::NewLC(TCmsContentInfoType aType,
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const TDesC8& aHashValue,
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TAlgorithmId aDigestAlgorithm,
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const CDSAPrivateKey& aKey,
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const CX509Certificate& aCert,
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TBool aAddCertificate)
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{
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CCmsSignedObject* self = new (ELeave) CCmsSignedObject();
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CleanupStack::PushL(self);
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self->ConstructL(aType, aHashValue, aDigestAlgorithm, aKey, aCert, aAddCertificate);
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return self;
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}
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EXPORT_C CCmsSignedObject* CCmsSignedObject::NewL(TCmsContentInfoType aType,
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const TDesC8& aHashValue,
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TAlgorithmId aDigestAlgorithm,
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const CDSAPrivateKey& aKey,
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const CX509Certificate& aCert,
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TBool aAddCertificate)
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{
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CCmsSignedObject* self = NewLC(aType, aHashValue, aDigestAlgorithm, aKey, aCert, aAddCertificate);
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CleanupStack::Pop(self);
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return self;
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}
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EXPORT_C CCmsSignedObject* CCmsSignedObject::NewLC(TCmsContentInfoType aType,
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const TDesC8& aHashValue,
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TAlgorithmId aDigestAlgorithm,
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const CRSAPrivateKey& aKey,
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const CX509Certificate& aCert,
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TBool aAddCertificate)
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{
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CCmsSignedObject* self = new (ELeave) CCmsSignedObject();
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CleanupStack::PushL(self);
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self->ConstructL(aType, aHashValue, aDigestAlgorithm, aKey, aCert, aAddCertificate);
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return self;
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}
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EXPORT_C CCmsSignedObject* CCmsSignedObject::NewL(TCmsContentInfoType aType,
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const TDesC8& aHashValue,
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TAlgorithmId aDigestAlgorithm,
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const CRSAPrivateKey& aKey,
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const CX509Certificate& aCert,
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TBool aAddCertificate)
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{
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CCmsSignedObject* self = NewLC(aType, aHashValue, aDigestAlgorithm, aKey, aCert, aAddCertificate);
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CleanupStack::Pop(self);
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return self;
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}
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EXPORT_C CCmsSignedObject* CCmsSignedObject::NewL(const CCmsContentInfo& aContentInfo)
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{
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CCmsSignedObject* self = NewLC(aContentInfo);
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CleanupStack::Pop(self);
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return self;
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}
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EXPORT_C CCmsSignedObject* CCmsSignedObject::NewLC(const CCmsContentInfo& aContentInfo)
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{
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CCmsSignedObject* self = new (ELeave) CCmsSignedObject();
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CleanupStack::PushL(self);
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self->ConstructL(aContentInfo);
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return self;
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}
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CCmsSignedObject::CCmsSignedObject() : iVersion(EVersion_1)
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{
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}
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EXPORT_C CCmsSignedObject::~CCmsSignedObject()
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{
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delete iContentInfo;
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iDigestAlgorithms.ResetAndDestroy();
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iCertificates.ResetAndDestroy();
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iSignerInfo.ResetAndDestroy();
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for(TInt i = 0; i < KCmsMaxSignedDataElements; i++)
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{
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delete iDataElements.At(i);
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}
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}
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EXPORT_C TBool CCmsSignedObject::IsCertificateSetPresent() const
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{
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return iIsCertificateSetPresent;
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}
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EXPORT_C TBool CCmsSignedObject::IsCertificateRevocationListsPresent() const
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{
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return iIsCertificateRevocationListsPresent;
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}
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EXPORT_C TInt CCmsSignedObject::Version() const
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{
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return iVersion;
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}
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EXPORT_C const RPointerArray<CCmsCertificateChoice>& CCmsSignedObject::Certificates() const
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{
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return iCertificates;
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}
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EXPORT_C const RPointerArray<CX509AlgorithmIdentifier>& CCmsSignedObject::DigestAlgorithms() const
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{
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return iDigestAlgorithms;
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}
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EXPORT_C const CEncapsulatedContentInfo& CCmsSignedObject::ContentInfo() const
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{
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return *iContentInfo;
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}
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EXPORT_C const RPointerArray<CCmsSignerInfo>& CCmsSignedObject::SignerInfo() const
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{
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return iSignerInfo;
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}
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EXPORT_C void CCmsSignedObject::AddCertificateL(const CX509Certificate& aCert)
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{
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CmsUtils::AddCertificateL(iCertificates, aCert);
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}
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void CCmsSignedObject::AddDigestAlgorithmL(TAlgorithmId aDigestAlgorithm)
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{
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CmsUtils::AddAlgorithmIdentifierL(iDigestAlgorithms, aDigestAlgorithm);
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}
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EXPORT_C void CCmsSignedObject::AddCertificateL(const TDesC8& aCert, CCmsCertificateChoice::TCertificateType aType)
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{
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if (aType==CCmsCertificateChoice::ECertificateAttribute)
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{
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iVersion=EVersion_3;
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}
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CmsUtils::AddCertificateL(iCertificates, aCert, aType);
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}
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void CCmsSignedObject::DecodeSignerInfoL(const TDesC8& aRawData)
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{
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CArrayPtr<TASN1DecGeneric>* signerInfo = PKCS7ASN1::DecodeSequenceLC(aRawData);
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TInt total = signerInfo->Count();
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CCmsSignerInfo* signer(NULL);
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for(TInt item = 0; item < total; item ++)
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{
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signer = CCmsSignerInfo::NewL(signerInfo->At(item)->Encoding());
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CleanupStack::PushL(signer);
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User::LeaveIfError(iSignerInfo.Append(signer));
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CleanupStack::Pop(signer);
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}
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CleanupStack::PopAndDestroy(signerInfo);
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}
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void CCmsSignedObject::DecodeEncapsulatedContentInfoL(const TDesC8& aRawData)
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{
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iContentInfo = CEncapsulatedContentInfo::NewL(aRawData);
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}
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void CCmsSignedObject::ConstructL(const CCmsContentInfo& aContentInfo)
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{
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if(aContentInfo.ContentType() != EContentTypeSignedData)
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{
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User::Leave(KErrArgument);
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}
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TASN1DecGeneric decGen(aContentInfo.ContentData());
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decGen.InitL();
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if(decGen.Tag() == EASN1Sequence && decGen.Class()==EUniversal)
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{
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InitSignedObjectL(decGen.Encoding());
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DecodeSignedDataL(*iEncoding);
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}
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else
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{
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User::Leave(KErrArgument);
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}
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}
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void CCmsSignedObject::ConstructL(TCmsContentInfoType aType, TBool aIsDetached, const TDesC8& aContentData)
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{
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if (aContentData==KNullDesC8() && !aIsDetached)
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{
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User::Leave(KErrArgument);
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}
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iContentInfo=CEncapsulatedContentInfo::NewL(aType, !aIsDetached, aContentData);
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//For later use to create hash if detached and hash not provided
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iContentData.Set(aContentData);
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}
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CCmsSignerIdentifier* CCmsSignedObject::BuildSignerIdentifierLC(const CX509Certificate& aCert)
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{
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CCmsSignerIdentifier* sid(NULL);
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const CX509CertExtension* certExt = aCert.Extension(KSubjectKeyId);
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if (certExt)
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{
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CX509SubjectKeyIdExt* ext=CX509SubjectKeyIdExt::NewLC(certExt->Data());
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HBufC8* subKeyId=ext->KeyId().AllocL();
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CleanupStack::PopAndDestroy(ext);
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CleanupStack::PushL(subKeyId);
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sid=CCmsSignerIdentifier::NewL(subKeyId);
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CleanupStack::Pop(subKeyId);
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CleanupStack::PushL(sid);
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iVersion=EVersion_3;
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}
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else
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{
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CX500DistinguishedName* distinguishedName=CX500DistinguishedName::NewLC(aCert.IssuerName());
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CPKCS7IssuerAndSerialNumber* issuerAndSN=CPKCS7IssuerAndSerialNumber::NewL(distinguishedName, aCert.SerialNumber());
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CleanupStack::Pop(distinguishedName);
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CleanupStack::PushL(issuerAndSN);
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sid=CCmsSignerIdentifier::NewL(issuerAndSN);
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CleanupStack::Pop(issuerAndSN);
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CleanupStack::PushL(sid);
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}
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return sid;
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}
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void CCmsSignedObject::BuildSignerInfoCertListAndAlgoritmListL(TAlgorithmId aDigestAlgorithm,
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TBool aIsHash,
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const TDesC8& aValue,
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const CDSAPrivateKey& aKey,
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const CX509Certificate& aCert,
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TBool aAddCertificate)
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{
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//build Signer Identifier
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CCmsSignerIdentifier* sid=BuildSignerIdentifierLC(aCert);
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//build digest algorithm and signing algorithm
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CX509AlgorithmIdentifier* digAlg=CX509AlgorithmIdentifier::NewLC(aDigestAlgorithm, KNullDesC8());
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const CSubjectPublicKeyInfo& publicKeyInfo=aCert.PublicKey();
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CX509AlgorithmIdentifier* signingAlg=CX509AlgorithmIdentifier::NewLC(publicKeyInfo.AlgorithmId(), KNullDesC8());
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//build signer info
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CCmsSignerInfo* signerInfo=CCmsSignerInfo::NewL(aValue,
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aIsHash,
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aKey,
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sid,
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digAlg,
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signingAlg);
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CleanupStack::Pop(3, sid);
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CleanupStack::PushL(signerInfo);
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//add to the signer info list
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iSignerInfo.AppendL(signerInfo);
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CleanupStack::Pop();
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//Add the certificate to the list if needed
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if (aAddCertificate)
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{
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AddCertificateL(aCert);
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}
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//Add the digest algorithm the list if needed
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AddDigestAlgorithmL(aDigestAlgorithm);
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}
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void CCmsSignedObject::BuildSignerInfoCertListAndAlgoritmListL(TAlgorithmId aDigestAlgorithm,
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TBool aIsHash,
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const TDesC8& aValue,
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const CRSAPrivateKey& aKey,
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const CX509Certificate& aCert,
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TBool aAddCertificate)
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{
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//build Signer Identifier
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CCmsSignerIdentifier* sid=BuildSignerIdentifierLC(aCert);
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//build digest algorithm and signing algorithm
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CX509AlgorithmIdentifier* digAlg=CX509AlgorithmIdentifier::NewLC(aDigestAlgorithm, KNullDesC8());
|
sl@0
|
328 |
const CSubjectPublicKeyInfo& publicKeyInfo=aCert.PublicKey();
|
sl@0
|
329 |
CX509AlgorithmIdentifier* signingAlg=CX509AlgorithmIdentifier::NewLC(publicKeyInfo.AlgorithmId(), publicKeyInfo.EncodedParams());
|
sl@0
|
330 |
|
sl@0
|
331 |
//build signer info
|
sl@0
|
332 |
CCmsSignerInfo* signerInfo=CCmsSignerInfo::NewL(aValue,
|
sl@0
|
333 |
aIsHash,
|
sl@0
|
334 |
aKey,
|
sl@0
|
335 |
sid,
|
sl@0
|
336 |
digAlg,
|
sl@0
|
337 |
signingAlg);
|
sl@0
|
338 |
CleanupStack::Pop(3, sid);
|
sl@0
|
339 |
CleanupStack::PushL(signerInfo);
|
sl@0
|
340 |
//add to the signer info list
|
sl@0
|
341 |
iSignerInfo.AppendL(signerInfo);
|
sl@0
|
342 |
CleanupStack::Pop();
|
sl@0
|
343 |
|
sl@0
|
344 |
//Add the certificate to the list if needed
|
sl@0
|
345 |
if (aAddCertificate)
|
sl@0
|
346 |
{
|
sl@0
|
347 |
AddCertificateL(aCert);
|
sl@0
|
348 |
}
|
sl@0
|
349 |
|
sl@0
|
350 |
//Add the digest algorithm the list if needed
|
sl@0
|
351 |
AddDigestAlgorithmL(aDigestAlgorithm);
|
sl@0
|
352 |
}
|
sl@0
|
353 |
|
sl@0
|
354 |
void CCmsSignedObject::ConstructL(TCmsContentInfoType aType,
|
sl@0
|
355 |
const TDesC8& aHashValue,
|
sl@0
|
356 |
TAlgorithmId aDigestAlgorithm,
|
sl@0
|
357 |
const CDSAPrivateKey& aKey,
|
sl@0
|
358 |
const CX509Certificate& aCert,
|
sl@0
|
359 |
TBool aAddCertificate)
|
sl@0
|
360 |
{
|
sl@0
|
361 |
//Set the CMS object version to version 3 if the encapsulatedconetent data type is not data
|
sl@0
|
362 |
if (aType != EContentTypeData)
|
sl@0
|
363 |
{
|
sl@0
|
364 |
iVersion=EVersion_3;
|
sl@0
|
365 |
}
|
sl@0
|
366 |
|
sl@0
|
367 |
//build EncapsulatedContentInfo
|
sl@0
|
368 |
iContentInfo=CEncapsulatedContentInfo::NewL(aType, EFalse, KNullDesC8());
|
sl@0
|
369 |
|
sl@0
|
370 |
BuildSignerInfoCertListAndAlgoritmListL(aDigestAlgorithm,
|
sl@0
|
371 |
ETrue,
|
sl@0
|
372 |
aHashValue,
|
sl@0
|
373 |
aKey,
|
sl@0
|
374 |
aCert,
|
sl@0
|
375 |
aAddCertificate);
|
sl@0
|
376 |
|
sl@0
|
377 |
}
|
sl@0
|
378 |
void CCmsSignedObject::ConstructL(TCmsContentInfoType aType,
|
sl@0
|
379 |
const TDesC8& aHashValue,
|
sl@0
|
380 |
TAlgorithmId aDigestAlgorithm,
|
sl@0
|
381 |
const CRSAPrivateKey& aKey,
|
sl@0
|
382 |
const CX509Certificate& aCert,
|
sl@0
|
383 |
TBool aAddCertificate)
|
sl@0
|
384 |
{
|
sl@0
|
385 |
//Set the CMS object version to version 3 if the encapsulatedconetent data type is not data
|
sl@0
|
386 |
if (aType != EContentTypeData)
|
sl@0
|
387 |
{
|
sl@0
|
388 |
iVersion=EVersion_3;
|
sl@0
|
389 |
}
|
sl@0
|
390 |
|
sl@0
|
391 |
//build EncapsulatedContentInfo
|
sl@0
|
392 |
iContentInfo=CEncapsulatedContentInfo::NewL(aType, EFalse, KNullDesC8());
|
sl@0
|
393 |
|
sl@0
|
394 |
BuildSignerInfoCertListAndAlgoritmListL(aDigestAlgorithm,
|
sl@0
|
395 |
ETrue,
|
sl@0
|
396 |
aHashValue,
|
sl@0
|
397 |
aKey,
|
sl@0
|
398 |
aCert,
|
sl@0
|
399 |
aAddCertificate);
|
sl@0
|
400 |
}
|
sl@0
|
401 |
|
sl@0
|
402 |
|
sl@0
|
403 |
EXPORT_C void CCmsSignedObject::SignL(const TDesC8& aHashValue,
|
sl@0
|
404 |
TAlgorithmId aDigestAlgorithm,
|
sl@0
|
405 |
const CDSAPrivateKey& aKey,
|
sl@0
|
406 |
const CX509Certificate& aCert,
|
sl@0
|
407 |
TBool aAddCertificate)
|
sl@0
|
408 |
|
sl@0
|
409 |
{
|
sl@0
|
410 |
TBool isHash=(aHashValue!=KNullDesC8())? ETrue:EFalse;
|
sl@0
|
411 |
if (isHash)
|
sl@0
|
412 |
{
|
sl@0
|
413 |
BuildSignerInfoCertListAndAlgoritmListL(aDigestAlgorithm,
|
sl@0
|
414 |
isHash,
|
sl@0
|
415 |
aHashValue,
|
sl@0
|
416 |
aKey,
|
sl@0
|
417 |
aCert,
|
sl@0
|
418 |
aAddCertificate);
|
sl@0
|
419 |
}
|
sl@0
|
420 |
else
|
sl@0
|
421 |
{
|
sl@0
|
422 |
if (iContentData!=KNullDesC8())
|
sl@0
|
423 |
{
|
sl@0
|
424 |
BuildSignerInfoCertListAndAlgoritmListL(aDigestAlgorithm,
|
sl@0
|
425 |
isHash,
|
sl@0
|
426 |
iContentData,
|
sl@0
|
427 |
aKey,
|
sl@0
|
428 |
aCert,
|
sl@0
|
429 |
aAddCertificate);
|
sl@0
|
430 |
}
|
sl@0
|
431 |
else
|
sl@0
|
432 |
{
|
sl@0
|
433 |
//No way to sign if no data content nor its hash.
|
sl@0
|
434 |
User::Leave(KErrArgument);
|
sl@0
|
435 |
}
|
sl@0
|
436 |
}
|
sl@0
|
437 |
}
|
sl@0
|
438 |
|
sl@0
|
439 |
EXPORT_C void CCmsSignedObject::SignL(const TDesC8& aHashValue,
|
sl@0
|
440 |
TAlgorithmId aDigestAlgorithm,
|
sl@0
|
441 |
const CRSAPrivateKey& aKey,
|
sl@0
|
442 |
const CX509Certificate& aCert,
|
sl@0
|
443 |
TBool aAddCertificate)
|
sl@0
|
444 |
{
|
sl@0
|
445 |
TBool isHash=(aHashValue!=KNullDesC8())? ETrue:EFalse;
|
sl@0
|
446 |
if (isHash)
|
sl@0
|
447 |
{
|
sl@0
|
448 |
BuildSignerInfoCertListAndAlgoritmListL(aDigestAlgorithm,
|
sl@0
|
449 |
isHash,
|
sl@0
|
450 |
aHashValue,
|
sl@0
|
451 |
aKey,
|
sl@0
|
452 |
aCert,
|
sl@0
|
453 |
aAddCertificate);
|
sl@0
|
454 |
}
|
sl@0
|
455 |
else
|
sl@0
|
456 |
{
|
sl@0
|
457 |
if (iContentData!=KNullDesC8())
|
sl@0
|
458 |
{
|
sl@0
|
459 |
BuildSignerInfoCertListAndAlgoritmListL(aDigestAlgorithm,
|
sl@0
|
460 |
isHash,
|
sl@0
|
461 |
iContentData,
|
sl@0
|
462 |
aKey,
|
sl@0
|
463 |
aCert,
|
sl@0
|
464 |
aAddCertificate);
|
sl@0
|
465 |
}
|
sl@0
|
466 |
else
|
sl@0
|
467 |
{
|
sl@0
|
468 |
//No way to sign if no data content nor its hash.
|
sl@0
|
469 |
User::Leave(KErrArgument);
|
sl@0
|
470 |
}
|
sl@0
|
471 |
}
|
sl@0
|
472 |
}
|
sl@0
|
473 |
|
sl@0
|
474 |
|
sl@0
|
475 |
EXPORT_C CASN1EncSequence* CCmsSignedObject::EncodeASN1DERLC() const
|
sl@0
|
476 |
{
|
sl@0
|
477 |
// the root sequence contains the signed object
|
sl@0
|
478 |
CASN1EncSequence* root = CASN1EncSequence::NewLC();
|
sl@0
|
479 |
|
sl@0
|
480 |
// Encode version
|
sl@0
|
481 |
CASN1EncInt* version=CASN1EncInt::NewLC(iVersion);
|
sl@0
|
482 |
root->AddAndPopChildL(version);
|
sl@0
|
483 |
|
sl@0
|
484 |
// Encode Algorithm
|
sl@0
|
485 |
CASN1EncBase* algorithm=EncodeAlgorithmsLC();
|
sl@0
|
486 |
root->AddAndPopChildL(algorithm);
|
sl@0
|
487 |
|
sl@0
|
488 |
|
sl@0
|
489 |
// Encode EncapsulatedContentInfo
|
sl@0
|
490 |
CASN1EncSequence* contentInfo=iContentInfo->EncodeASN1DERLC();
|
sl@0
|
491 |
root->AddAndPopChildL(contentInfo);
|
sl@0
|
492 |
|
sl@0
|
493 |
// Encode option fields certificates SET
|
sl@0
|
494 |
CASN1EncBase* cert=EncodeCertificatesLC();
|
sl@0
|
495 |
if (cert)
|
sl@0
|
496 |
{
|
sl@0
|
497 |
root->AddAndPopChildL(cert);
|
sl@0
|
498 |
}
|
sl@0
|
499 |
|
sl@0
|
500 |
// Encode signerinfo
|
sl@0
|
501 |
CASN1EncBase* signerInfo=EncodeSignerInfoLC();
|
sl@0
|
502 |
root->AddAndPopChildL(signerInfo);
|
sl@0
|
503 |
|
sl@0
|
504 |
return root;
|
sl@0
|
505 |
}
|
sl@0
|
506 |
|
sl@0
|
507 |
|
sl@0
|
508 |
CASN1EncBase* CCmsSignedObject::EncodeCertificatesLC() const
|
sl@0
|
509 |
{
|
sl@0
|
510 |
return CmsUtils::EncodeCertificatesLC(iCertificates);
|
sl@0
|
511 |
}
|
sl@0
|
512 |
|
sl@0
|
513 |
CASN1EncBase* CCmsSignedObject::EncodeAlgorithmsLC() const
|
sl@0
|
514 |
{
|
sl@0
|
515 |
return CmsUtils::EncodeDigestAlgorithmsLC(iDigestAlgorithms);
|
sl@0
|
516 |
}
|
sl@0
|
517 |
|
sl@0
|
518 |
CASN1EncBase* CCmsSignedObject::EncodeSignerInfoLC() const
|
sl@0
|
519 |
{
|
sl@0
|
520 |
CASN1EncSet* signerInfoSet = CASN1EncSet::NewLC();
|
sl@0
|
521 |
TInt count=iSignerInfo.Count();
|
sl@0
|
522 |
|
sl@0
|
523 |
for (TInt i=0;i<count;i++)
|
sl@0
|
524 |
{
|
sl@0
|
525 |
CASN1EncSequence* signerInfo=iSignerInfo[i]->EncodeASN1DERLC();
|
sl@0
|
526 |
signerInfoSet->AddAndPopChildL(signerInfo);
|
sl@0
|
527 |
}
|
sl@0
|
528 |
return signerInfoSet;
|
sl@0
|
529 |
}
|
sl@0
|
530 |
|
sl@0
|
531 |
EXPORT_C TBool CCmsSignedObject::ValidateSignerLC(const CCmsSignerInfo& aSignerInfo, HBufC8*& aCertChainEncoding)
|
sl@0
|
532 |
{
|
sl@0
|
533 |
TInt certCount = iCertificates.Count();
|
sl@0
|
534 |
TInt endEntityPos = -1;
|
sl@0
|
535 |
TInt endEncodingSize = 0;
|
sl@0
|
536 |
TPtrC8 endEntityEncoding;
|
sl@0
|
537 |
TInt cert;
|
sl@0
|
538 |
TBool valid = EFalse;
|
sl@0
|
539 |
|
sl@0
|
540 |
const CCmsSignerIdentifier& signerId = aSignerInfo.SignerIdentifier();
|
sl@0
|
541 |
|
sl@0
|
542 |
// looks for end entity certificate
|
sl@0
|
543 |
for(cert = 0; cert < certCount; cert++)
|
sl@0
|
544 |
{
|
sl@0
|
545 |
if (iCertificates[cert]->CertificateType()==CCmsCertificateChoice::ECertificateX509)
|
sl@0
|
546 |
{
|
sl@0
|
547 |
const CX509Certificate& certificate = iCertificates[cert]->Certificate();
|
sl@0
|
548 |
|
sl@0
|
549 |
endEncodingSize+= certificate.Encoding().Length();
|
sl@0
|
550 |
|
sl@0
|
551 |
if(endEntityPos == -1)
|
sl@0
|
552 |
{
|
sl@0
|
553 |
if (signerId.SignerIdentifierType()==CCmsSignerIdentifier::EIssuerAndSerialNumber)
|
sl@0
|
554 |
{
|
sl@0
|
555 |
if (certificate.IssuerName().ExactMatchL(signerId.IssuerAndSerialNumber()->IssuerName()))
|
sl@0
|
556 |
{
|
sl@0
|
557 |
RInteger sn1=RInteger::NewL(certificate.SerialNumber());
|
sl@0
|
558 |
CleanupClosePushL(sn1);
|
sl@0
|
559 |
RInteger sn2=RInteger::NewL(signerId.IssuerAndSerialNumber()->SerialNumber());
|
sl@0
|
560 |
CleanupClosePushL(sn2);
|
sl@0
|
561 |
if (sn1==sn2)
|
sl@0
|
562 |
{
|
sl@0
|
563 |
endEntityPos = cert;
|
sl@0
|
564 |
endEntityEncoding.Set(certificate.Encoding());
|
sl@0
|
565 |
valid = ValidateSignatureL(aSignerInfo, certificate);
|
sl@0
|
566 |
}
|
sl@0
|
567 |
CleanupStack::PopAndDestroy(2, &sn1);//sn2, sn1
|
sl@0
|
568 |
}
|
sl@0
|
569 |
}
|
sl@0
|
570 |
else
|
sl@0
|
571 |
{
|
sl@0
|
572 |
const CX509CertExtension* certExt = certificate.Extension(KSubjectKeyId);
|
sl@0
|
573 |
if (certExt)
|
sl@0
|
574 |
{
|
sl@0
|
575 |
CX509SubjectKeyIdExt* ext=CX509SubjectKeyIdExt::NewLC(certExt->Data());
|
sl@0
|
576 |
if (signerId.SubjectKeyIdentifier().Compare(ext->KeyId())==0)
|
sl@0
|
577 |
{
|
sl@0
|
578 |
endEntityPos = cert;
|
sl@0
|
579 |
endEntityEncoding.Set(certificate.Encoding());
|
sl@0
|
580 |
valid = ValidateSignatureL(aSignerInfo, certificate);
|
sl@0
|
581 |
}
|
sl@0
|
582 |
CleanupStack::PopAndDestroy(ext);
|
sl@0
|
583 |
}
|
sl@0
|
584 |
}
|
sl@0
|
585 |
}
|
sl@0
|
586 |
}
|
sl@0
|
587 |
}
|
sl@0
|
588 |
|
sl@0
|
589 |
// checks if end entity was found
|
sl@0
|
590 |
if(endEntityPos != -1)
|
sl@0
|
591 |
{
|
sl@0
|
592 |
// builds the cert chain encoding by putting the end entity first then all remaining
|
sl@0
|
593 |
// certs
|
sl@0
|
594 |
aCertChainEncoding = HBufC8::NewLC(endEncodingSize);
|
sl@0
|
595 |
TPtr8 encodingPtr(aCertChainEncoding->Des());
|
sl@0
|
596 |
encodingPtr.Copy(endEntityEncoding);
|
sl@0
|
597 |
for(cert = 0; cert < certCount; cert++)
|
sl@0
|
598 |
{
|
sl@0
|
599 |
if (iCertificates[cert]->CertificateType()==CCmsCertificateChoice::ECertificateX509)
|
sl@0
|
600 |
{
|
sl@0
|
601 |
const CX509Certificate& certificate = iCertificates[cert]->Certificate();
|
sl@0
|
602 |
if(cert != endEntityPos)
|
sl@0
|
603 |
{
|
sl@0
|
604 |
encodingPtr.Append(certificate.Encoding());
|
sl@0
|
605 |
}
|
sl@0
|
606 |
}
|
sl@0
|
607 |
}
|
sl@0
|
608 |
}
|
sl@0
|
609 |
else
|
sl@0
|
610 |
{
|
sl@0
|
611 |
User::Leave(KErrNotFound);
|
sl@0
|
612 |
}
|
sl@0
|
613 |
return valid;
|
sl@0
|
614 |
}
|
sl@0
|
615 |
|
sl@0
|
616 |
|
sl@0
|
617 |
EXPORT_C TBool CCmsSignedObject::ValidateSignerLC(const CCmsSignerInfo& aSignerInfo, const RPointerArray<CX509Certificate>& aCertificates, HBufC8*& aCertChainEncoding)
|
sl@0
|
618 |
{
|
sl@0
|
619 |
TInt certCount = aCertificates.Count();
|
sl@0
|
620 |
TInt endEntityPos = -1;
|
sl@0
|
621 |
TInt endEncodingSize = 0;
|
sl@0
|
622 |
TPtrC8 endEntityEncoding;
|
sl@0
|
623 |
TInt cert;
|
sl@0
|
624 |
TBool valid = EFalse;
|
sl@0
|
625 |
const CCmsSignerIdentifier& signerId = aSignerInfo.SignerIdentifier();
|
sl@0
|
626 |
|
sl@0
|
627 |
// looks for end entity certificate
|
sl@0
|
628 |
for(cert = 0; cert < certCount; cert++)
|
sl@0
|
629 |
{
|
sl@0
|
630 |
const CX509Certificate& certificate = *aCertificates[cert];
|
sl@0
|
631 |
endEncodingSize+= certificate.Encoding().Length();
|
sl@0
|
632 |
if(endEntityPos == -1)
|
sl@0
|
633 |
{
|
sl@0
|
634 |
if (signerId.SignerIdentifierType()==CCmsSignerIdentifier::EIssuerAndSerialNumber)
|
sl@0
|
635 |
{
|
sl@0
|
636 |
if (certificate.IssuerName().ExactMatchL(signerId.IssuerAndSerialNumber()->IssuerName()))
|
sl@0
|
637 |
{
|
sl@0
|
638 |
RInteger sn1=RInteger::NewL(certificate.SerialNumber());
|
sl@0
|
639 |
CleanupClosePushL(sn1);
|
sl@0
|
640 |
RInteger sn2=RInteger::NewL(signerId.IssuerAndSerialNumber()->SerialNumber());
|
sl@0
|
641 |
CleanupClosePushL(sn2);
|
sl@0
|
642 |
if (sn1==sn2)
|
sl@0
|
643 |
{
|
sl@0
|
644 |
endEntityPos = cert;
|
sl@0
|
645 |
endEntityEncoding.Set(certificate.Encoding());
|
sl@0
|
646 |
valid = ValidateSignatureL(aSignerInfo, certificate);
|
sl@0
|
647 |
}
|
sl@0
|
648 |
CleanupStack::PopAndDestroy(2, &sn1);//sn2, sn1
|
sl@0
|
649 |
}
|
sl@0
|
650 |
}
|
sl@0
|
651 |
else
|
sl@0
|
652 |
{
|
sl@0
|
653 |
const CX509CertExtension* certExt = certificate.Extension(KSubjectKeyId);
|
sl@0
|
654 |
if (certExt)
|
sl@0
|
655 |
{
|
sl@0
|
656 |
CX509SubjectKeyIdExt* ext=CX509SubjectKeyIdExt::NewLC(certExt->Data());
|
sl@0
|
657 |
if (signerId.SubjectKeyIdentifier().Compare(ext->KeyId())==0)
|
sl@0
|
658 |
{
|
sl@0
|
659 |
endEntityPos = cert;
|
sl@0
|
660 |
endEntityEncoding.Set(certificate.Encoding());
|
sl@0
|
661 |
valid = ValidateSignatureL(aSignerInfo, certificate);
|
sl@0
|
662 |
}
|
sl@0
|
663 |
CleanupStack::PopAndDestroy(ext);
|
sl@0
|
664 |
}
|
sl@0
|
665 |
}
|
sl@0
|
666 |
}
|
sl@0
|
667 |
}
|
sl@0
|
668 |
|
sl@0
|
669 |
// checks if end entity was found
|
sl@0
|
670 |
if(endEntityPos != -1)
|
sl@0
|
671 |
{
|
sl@0
|
672 |
// builds the cert chain encoding by putting the end entity first then all remaining
|
sl@0
|
673 |
// certs
|
sl@0
|
674 |
aCertChainEncoding = HBufC8::NewLC(endEncodingSize);
|
sl@0
|
675 |
TPtr8 encodingPtr(aCertChainEncoding->Des());
|
sl@0
|
676 |
encodingPtr.Copy(endEntityEncoding);
|
sl@0
|
677 |
for(cert = 0; cert < certCount; cert++)
|
sl@0
|
678 |
{
|
sl@0
|
679 |
const CX509Certificate& certificate = *aCertificates[cert];
|
sl@0
|
680 |
|
sl@0
|
681 |
if(cert != endEntityPos)
|
sl@0
|
682 |
{
|
sl@0
|
683 |
encodingPtr.Append(certificate.Encoding());
|
sl@0
|
684 |
}
|
sl@0
|
685 |
}
|
sl@0
|
686 |
}
|
sl@0
|
687 |
else
|
sl@0
|
688 |
{
|
sl@0
|
689 |
User::Leave(KErrNotFound);
|
sl@0
|
690 |
}
|
sl@0
|
691 |
|
sl@0
|
692 |
return valid;
|
sl@0
|
693 |
}
|
sl@0
|
694 |
|
sl@0
|
695 |
|
sl@0
|
696 |
EXPORT_C TBool CCmsSignedObject::ValidateSignerLC(const CCmsSignerInfo& aSignerInfo, HBufC8*& aCertChainEncoding, TBool aIsHash, const TDesC8& aContentDataOrHash)
|
sl@0
|
697 |
{
|
sl@0
|
698 |
if (aIsHash)
|
sl@0
|
699 |
{
|
sl@0
|
700 |
SetHash(aContentDataOrHash);
|
sl@0
|
701 |
}
|
sl@0
|
702 |
else
|
sl@0
|
703 |
{
|
sl@0
|
704 |
SetContentData(aContentDataOrHash);
|
sl@0
|
705 |
}
|
sl@0
|
706 |
return ValidateSignerLC(aSignerInfo, aCertChainEncoding);
|
sl@0
|
707 |
}
|
sl@0
|
708 |
|
sl@0
|
709 |
EXPORT_C TBool CCmsSignedObject::ValidateSignerLC(const CCmsSignerInfo& aSignerInfo, const RPointerArray<CX509Certificate>& aCertificates, HBufC8*& aCertChainEncoding, TBool aIsHash, const TDesC8& aContentDataOrHash)
|
sl@0
|
710 |
{
|
sl@0
|
711 |
if (aIsHash)
|
sl@0
|
712 |
{
|
sl@0
|
713 |
SetHash(aContentDataOrHash);
|
sl@0
|
714 |
}
|
sl@0
|
715 |
else
|
sl@0
|
716 |
{
|
sl@0
|
717 |
SetContentData(aContentDataOrHash);
|
sl@0
|
718 |
}
|
sl@0
|
719 |
return ValidateSignerLC(aSignerInfo, aCertificates, aCertChainEncoding);
|
sl@0
|
720 |
}
|
sl@0
|
721 |
|
sl@0
|
722 |
TBool CCmsSignedObject::ValidateSignatureL(const CCmsSignerInfo& aSignerInfo, const CX509Certificate& aEndEntityCert)
|
sl@0
|
723 |
{
|
sl@0
|
724 |
delete iSigningAlgorithm;
|
sl@0
|
725 |
iSigningAlgorithm = NULL;
|
sl@0
|
726 |
iSigningAlgorithm = CX509SigningAlgorithmIdentifier::NewL(aSignerInfo.SignatureAlgorithm(), aSignerInfo.DigestAlgorithm());
|
sl@0
|
727 |
|
sl@0
|
728 |
delete iSignature;
|
sl@0
|
729 |
iSignature = NULL;
|
sl@0
|
730 |
iSignature = aSignerInfo.SignatureValue().AllocL();
|
sl@0
|
731 |
|
sl@0
|
732 |
if (aSignerInfo.SignatureAlgorithm().Algorithm()==EDSA)
|
sl@0
|
733 |
{
|
sl@0
|
734 |
delete iParameters;
|
sl@0
|
735 |
iParameters = NULL;
|
sl@0
|
736 |
CDSAParameters* theDSAParams = iKeyFactory->DSAParametersL(aEndEntityCert.PublicKey().EncodedParams());
|
sl@0
|
737 |
CleanupStack::PushL(theDSAParams);
|
sl@0
|
738 |
CSigningKeyParameters* params = CSigningKeyParameters::NewLC();
|
sl@0
|
739 |
params->SetDSAParamsL(*theDSAParams);
|
sl@0
|
740 |
SetParametersL(*params);
|
sl@0
|
741 |
CleanupStack::PopAndDestroy(2, theDSAParams);
|
sl@0
|
742 |
}
|
sl@0
|
743 |
|
sl@0
|
744 |
if (iContentInfo->IsContentDataPresent() || iContentData != KNullDesC8)
|
sl@0
|
745 |
{
|
sl@0
|
746 |
return VerifySignatureL(aEndEntityCert.PublicKey().KeyData());
|
sl@0
|
747 |
}
|
sl@0
|
748 |
else if (iHash!=KNullDesC8)
|
sl@0
|
749 |
{
|
sl@0
|
750 |
return VerifySignatureL(aEndEntityCert.PublicKey().KeyData(), iHash);
|
sl@0
|
751 |
}
|
sl@0
|
752 |
else
|
sl@0
|
753 |
{
|
sl@0
|
754 |
User::Leave(KErrArgument);
|
sl@0
|
755 |
return EFalse;
|
sl@0
|
756 |
}
|
sl@0
|
757 |
|
sl@0
|
758 |
}
|
sl@0
|
759 |
|
sl@0
|
760 |
void CCmsSignedObject::InitSignedObjectL(const TDesC8& aRawData)
|
sl@0
|
761 |
{
|
sl@0
|
762 |
// Populate CSignedObject data members
|
sl@0
|
763 |
iKeyFactory = new (ELeave) TX509KeyFactory;
|
sl@0
|
764 |
iEncoding = aRawData.AllocL();
|
sl@0
|
765 |
|
sl@0
|
766 |
CSHA1* hash = CSHA1::NewL();
|
sl@0
|
767 |
CleanupStack::PushL(hash);
|
sl@0
|
768 |
iFingerprint = hash->Hash(Encoding()).AllocL();
|
sl@0
|
769 |
CleanupStack::PopAndDestroy(hash);
|
sl@0
|
770 |
}
|
sl@0
|
771 |
|
sl@0
|
772 |
void CCmsSignedObject::DecodeSignedDataL(const TDesC8& aRawData)
|
sl@0
|
773 |
{
|
sl@0
|
774 |
CArrayPtr<TASN1DecGeneric>* signedData = PKCS7ASN1::DecodeSequenceLC(aRawData, KCmsMinSignedDataElements, KCmsMaxSignedDataElements);
|
sl@0
|
775 |
TInt totalItems = signedData->Count();
|
sl@0
|
776 |
TASN1DecInteger decInt;
|
sl@0
|
777 |
|
sl@0
|
778 |
// decodes version
|
sl@0
|
779 |
iDataElements.At(EVersionNumber) = new(ELeave) TPtrC8(signedData->At(0)->GetContentDER());
|
sl@0
|
780 |
iVersion = decInt.DecodeDERShortL(*signedData->At(0));
|
sl@0
|
781 |
if (iVersion>4 || iVersion<0)
|
sl@0
|
782 |
{
|
sl@0
|
783 |
User::Leave(KErrArgument);
|
sl@0
|
784 |
}
|
sl@0
|
785 |
// decodes algorithms
|
sl@0
|
786 |
iDataElements.At(EDigestAlgorithms) = new(ELeave) TPtrC8(signedData->At(1)->GetContentDER());
|
sl@0
|
787 |
DecodeDigestAlgorithmsL(signedData->At(1)->Encoding());
|
sl@0
|
788 |
// decodes contentinfo
|
sl@0
|
789 |
iDataElements.At(EEncapsulatedContentInfo) = new(ELeave) TPtrC8(signedData->At(2)->GetContentDER());
|
sl@0
|
790 |
DecodeEncapsulatedContentInfoL(signedData->At(2)->Encoding());
|
sl@0
|
791 |
|
sl@0
|
792 |
// Checks for optional fields
|
sl@0
|
793 |
TInt pos = 3; // Skip first non-optional fields
|
sl@0
|
794 |
do
|
sl@0
|
795 |
{
|
sl@0
|
796 |
const TASN1DecGeneric& currentItem = *signedData->At(pos);
|
sl@0
|
797 |
switch(currentItem.Tag())
|
sl@0
|
798 |
{
|
sl@0
|
799 |
case KSignedDataCertificates:
|
sl@0
|
800 |
{
|
sl@0
|
801 |
if (currentItem.Class()!=EContextSpecific)
|
sl@0
|
802 |
{
|
sl@0
|
803 |
User::Leave(KErrArgument);
|
sl@0
|
804 |
}
|
sl@0
|
805 |
iIsCertificateSetPresent=ETrue;
|
sl@0
|
806 |
iDataElements.At(ECertificates) = new(ELeave) TPtrC8(currentItem.GetContentDER());
|
sl@0
|
807 |
DecodeCertificatesL(currentItem.Encoding());
|
sl@0
|
808 |
break;
|
sl@0
|
809 |
}
|
sl@0
|
810 |
case KSignedDataRevocationLists:
|
sl@0
|
811 |
{
|
sl@0
|
812 |
if (currentItem.Class()!=EContextSpecific)
|
sl@0
|
813 |
{
|
sl@0
|
814 |
User::Leave(KErrArgument);
|
sl@0
|
815 |
}
|
sl@0
|
816 |
iIsCertificateRevocationListsPresent=ETrue;
|
sl@0
|
817 |
iDataElements.At(ERevocationLists) = new(ELeave) TPtrC8(currentItem.GetContentDER());
|
sl@0
|
818 |
DecodeRevocationListsL(currentItem.Encoding());
|
sl@0
|
819 |
break;
|
sl@0
|
820 |
}
|
sl@0
|
821 |
default:
|
sl@0
|
822 |
{
|
sl@0
|
823 |
//Optional field with wrong tag and class
|
sl@0
|
824 |
if (pos<totalItems-1)
|
sl@0
|
825 |
{
|
sl@0
|
826 |
User::Leave(KErrArgument);
|
sl@0
|
827 |
}
|
sl@0
|
828 |
// else Non-optional field
|
sl@0
|
829 |
}
|
sl@0
|
830 |
}
|
sl@0
|
831 |
pos++;
|
sl@0
|
832 |
}
|
sl@0
|
833 |
while(pos < totalItems);
|
sl@0
|
834 |
|
sl@0
|
835 |
iDataElements.At(ESignedInfo) = new(ELeave) TPtrC8(signedData->At(totalItems-1)->GetContentDER());
|
sl@0
|
836 |
DecodeSignerInfoL(signedData->At(totalItems-1)->Encoding());
|
sl@0
|
837 |
|
sl@0
|
838 |
CleanupStack::PopAndDestroy(signedData);
|
sl@0
|
839 |
}
|
sl@0
|
840 |
|
sl@0
|
841 |
void CCmsSignedObject::DecodeDigestAlgorithmsL(const TDesC8& aRawData)
|
sl@0
|
842 |
{
|
sl@0
|
843 |
CmsUtils::DecodeDigestAlgorithmsL(iDigestAlgorithms, aRawData);
|
sl@0
|
844 |
}
|
sl@0
|
845 |
|
sl@0
|
846 |
void CCmsSignedObject::DecodeCertificatesL(const TDesC8& aRawData)
|
sl@0
|
847 |
{
|
sl@0
|
848 |
CmsUtils::DecodeCertificatesL(iCertificates, aRawData);
|
sl@0
|
849 |
}
|
sl@0
|
850 |
|
sl@0
|
851 |
void CCmsSignedObject::DecodeRevocationListsL(const TDesC8& /*aRawData*/)
|
sl@0
|
852 |
{
|
sl@0
|
853 |
}
|
sl@0
|
854 |
|
sl@0
|
855 |
EXPORT_C const TPtrC8 CCmsSignedObject::SignedDataL() const
|
sl@0
|
856 |
{
|
sl@0
|
857 |
if (iContentInfo->IsContentDataPresent())
|
sl@0
|
858 |
{
|
sl@0
|
859 |
return iContentInfo->ContentData();
|
sl@0
|
860 |
}
|
sl@0
|
861 |
else
|
sl@0
|
862 |
{
|
sl@0
|
863 |
if (iContentData!=KNullDesC8)
|
sl@0
|
864 |
{
|
sl@0
|
865 |
return iContentData;
|
sl@0
|
866 |
}
|
sl@0
|
867 |
else
|
sl@0
|
868 |
{
|
sl@0
|
869 |
User::Leave(KErrArgument);
|
sl@0
|
870 |
}
|
sl@0
|
871 |
}
|
sl@0
|
872 |
return KNullDesC8();
|
sl@0
|
873 |
}
|
sl@0
|
874 |
|
sl@0
|
875 |
EXPORT_C void CCmsSignedObject::InternalizeL(RReadStream& /*aStream*/)
|
sl@0
|
876 |
{
|
sl@0
|
877 |
User::Leave(KErrNotSupported);
|
sl@0
|
878 |
}
|
sl@0
|
879 |
|
sl@0
|
880 |
EXPORT_C const TPtrC8* CCmsSignedObject::DataElementEncoding(const TUint aIndex) const
|
sl@0
|
881 |
{
|
sl@0
|
882 |
return iDataElements.At(aIndex);
|
sl@0
|
883 |
}
|
sl@0
|
884 |
|
sl@0
|
885 |
void CCmsSignedObject::SetContentData(const TDesC8& aContentData)
|
sl@0
|
886 |
{
|
sl@0
|
887 |
iContentData.Set(aContentData);
|
sl@0
|
888 |
}
|
sl@0
|
889 |
|
sl@0
|
890 |
void CCmsSignedObject::SetHash(const TDesC8& aHash)
|
sl@0
|
891 |
{
|
sl@0
|
892 |
iHash.Set(aHash);
|
sl@0
|
893 |
}
|
sl@0
|
894 |
|
sl@0
|
895 |
|
sl@0
|
896 |
|
sl@0
|
897 |
|