cms/src/CCMSKeyTransRecipientInfo.cpp
changeset 0 164170e6151a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/src/CCMSKeyTransRecipientInfo.cpp	Tue Jan 26 15:20:08 2010 +0200
@@ -0,0 +1,373 @@
+/*
+* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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 FILES
+#include    "CCMSKeyTransRecipientInfo.h"
+#include "CCMSIssuerAndSerialNumber.h"
+#include "CCMSX509AlgorithmIdentifier.h"
+#include <asn1dec.h>
+#include <asn1enc.h>
+
+// CONSTANTS
+const TInt KNumberOfSubModules = 4;
+const TTagType KSubjectKeyIdentifierTag = 0;
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::CCMSKeyTransRecipientInfo
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CCMSKeyTransRecipientInfo::CCMSKeyTransRecipientInfo( TInt aVersion)
+    : CCMSRecipientInfo( aVersion )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CCMSKeyTransRecipientInfo::ConstructL(
+    const CCMSIssuerAndSerialNumber& aIssuerAndSerialNumber,
+    const CCMSX509AlgorithmIdentifier& aKeyEncryptionAlgorithm,
+	const TDesC8& aEncryptedKey )
+    {
+    BaseConstructL( aKeyEncryptionAlgorithm );
+    SetIssuerAndSerialNumberL( aIssuerAndSerialNumber );
+	SetEncryptedKeyL( aEncryptedKey );
+    }
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CCMSKeyTransRecipientInfo::ConstructL(
+    const TDesC8& aSubjectKeyIdentifier,
+    const CCMSX509AlgorithmIdentifier& aKeyEncryptionAlgorithm,
+	const TDesC8& aEncryptedKey )
+    {
+    BaseConstructL( aKeyEncryptionAlgorithm );
+    SetSubjectKeyIdentifierL( aSubjectKeyIdentifier );
+	SetEncryptedKeyL( aEncryptedKey );
+    }
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::NewLC
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CCMSKeyTransRecipientInfo* CCMSKeyTransRecipientInfo::NewLC()
+	{
+	// creating with empty/default values
+    CCMSKeyTransRecipientInfo* self =
+    	new( ELeave ) CCMSKeyTransRecipientInfo(
+            KCMSKeyTransRecipientInfoSubjectKeyIdentifierVersion );
+    CleanupStack::PushL( self );
+    CCMSX509AlgorithmIdentifier* algorithmIdentifier =
+        CCMSX509AlgorithmIdentifier::NewL();
+    CleanupStack::PushL( algorithmIdentifier );
+	self->ConstructL( KNullDesC8(), *algorithmIdentifier, KNullDesC8() );
+    CleanupStack::PopAndDestroy( algorithmIdentifier );
+	return self;
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CCMSKeyTransRecipientInfo* CCMSKeyTransRecipientInfo::NewL()
+	{
+	// creating with empty/default values
+	CCMSKeyTransRecipientInfo* self = NewLC();
+    CleanupStack::Pop( self );
+	return self;
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CCMSKeyTransRecipientInfo* CCMSKeyTransRecipientInfo::NewL(
+    const CCMSIssuerAndSerialNumber& aIssuerAndSerialNumber,
+    const CCMSX509AlgorithmIdentifier& aKeyEncryptionAlgorithm,
+    const TDesC8& aEncryptedKey )
+	{
+    CCMSKeyTransRecipientInfo* self =
+    	new( ELeave ) CCMSKeyTransRecipientInfo(
+            KCMSKeyTransRecipientInfoIssuerAndSerialNumberVersion );
+
+    CleanupStack::PushL( self );
+    self->ConstructL( aIssuerAndSerialNumber, aKeyEncryptionAlgorithm,
+                      aEncryptedKey );
+    CleanupStack::Pop( self );
+	return self;
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::NewLC
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CCMSKeyTransRecipientInfo* CCMSKeyTransRecipientInfo::NewLC(
+    const TDesC8& aSubjectKeyIdentifier,
+    const CCMSX509AlgorithmIdentifier& aKeyEncryptionAlgorithm,
+    const TDesC8& aEncryptedKey )
+	{
+    CCMSKeyTransRecipientInfo* self =
+    	new( ELeave ) CCMSKeyTransRecipientInfo(
+            KCMSKeyTransRecipientInfoSubjectKeyIdentifierVersion );
+
+    CleanupStack::PushL( self );
+    self->ConstructL( aSubjectKeyIdentifier, aKeyEncryptionAlgorithm,
+                      aEncryptedKey );
+	return self;
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CCMSKeyTransRecipientInfo* CCMSKeyTransRecipientInfo::NewL(
+    const TDesC8& aSubjectKeyIdentifier,
+    const CCMSX509AlgorithmIdentifier& aKeyEncryptionAlgorithm,
+    const TDesC8& aEncryptedKey )
+	{
+    CCMSKeyTransRecipientInfo* self =
+        NewLC( aSubjectKeyIdentifier, aKeyEncryptionAlgorithm, aEncryptedKey );
+
+    CleanupStack::Pop( self );
+	return self;
+	}
+
+
+// Destructor
+CCMSKeyTransRecipientInfo::~CCMSKeyTransRecipientInfo()
+    {
+	delete iEncryptedKey;
+    delete iIssuerAndSerialNumber;
+    delete iSubjectKeyIdentifier;
+    }
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::DecodeL
+// Decrypts raw data to this instance
+// -----------------------------------------------------------------------------
+void CCMSKeyTransRecipientInfo::DecodeL( const TDesC8& aRawData )
+	{
+    CArrayPtr< TASN1DecGeneric >* itemsData =
+        DecodeSequenceLC( aRawData, KNumberOfSubModules, KNumberOfSubModules );
+
+    // Decode version
+    TASN1DecGeneric versionDec( *itemsData->At( 0 ) );
+    versionDec.InitL();
+    TASN1DecInteger intDecoder;
+    TInt version = intDecoder.DecodeDERShortL( versionDec );
+
+    // decode rid RecipientIdentifier
+    TASN1DecOctetString octetStringDecoder;
+    TASN1DecGeneric ridDec( *itemsData->At( 1 ) );
+    HBufC8* keyIdentifier = NULL;
+    CCMSIssuerAndSerialNumber* issuer = NULL;
+    switch( version )
+        {
+        case KCMSKeyTransRecipientInfoSubjectKeyIdentifierVersion:
+            {
+            if( ridDec.Tag() != KSubjectKeyIdentifierTag )
+                {
+                User::Leave( KErrArgument );
+                }
+            TInt pos = 0;
+            keyIdentifier = octetStringDecoder.DecodeDERL(
+                ridDec.GetContentDER(), pos );
+            CleanupStack::PushL( keyIdentifier );
+            break;
+            }
+        case KCMSKeyTransRecipientInfoIssuerAndSerialNumberVersion:
+            {
+            issuer = CCMSIssuerAndSerialNumber::NewL();
+            CleanupStack::PushL( issuer );
+            issuer->DecodeL( ridDec.Encoding() );
+            break;
+            }
+        default:
+            {
+            User::Leave( KErrArgument );
+            }
+        }
+
+    // decode keyEncryptionAlgorithm
+    CCMSX509AlgorithmIdentifier* algId = CCMSX509AlgorithmIdentifier::NewL();
+    CleanupStack::PushL( algId );
+    algId->DecodeL( itemsData->At( 2 )->Encoding() );
+
+    // decode encryptedKey
+    TASN1DecGeneric keyDecoder( *itemsData->At( 3 ) );
+    keyDecoder.InitL();
+    HBufC8* tmp = octetStringDecoder.DecodeDERL( keyDecoder );
+
+    // now we have created all new members, so we can change state
+    iVersion = version;
+    delete iSubjectKeyIdentifier;
+    iSubjectKeyIdentifier = keyIdentifier;
+    delete iIssuerAndSerialNumber;
+    iIssuerAndSerialNumber = issuer;
+    delete iKeyEncryptionAlgorithm;
+    iKeyEncryptionAlgorithm = algId;
+    delete iEncryptedKey;
+    iEncryptedKey = tmp;
+    CleanupStack::Pop( 2 ); // keyIdentifier/issuer, algId
+    CleanupStack::PopAndDestroy( itemsData );
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::EncoderLC
+// Returns ASN1 encoder for this instance
+// -----------------------------------------------------------------------------
+
+CASN1EncBase* CCMSKeyTransRecipientInfo::EncoderLC() const
+	{
+    CASN1EncSequence* root = CASN1EncSequence::NewLC();
+
+    // encode version
+    AddVersionL( root );
+
+    // encode rid RecipientIdentifier
+    if( iIssuerAndSerialNumber )
+        {
+        // encode issuerAndSerialNumber
+        HBufC8* encodedIssuer = NULL;
+        iIssuerAndSerialNumber->EncodeL( encodedIssuer );
+        CleanupStack::PushL( encodedIssuer );
+        CASN1EncEncoding* issuer = CASN1EncEncoding::NewLC( *encodedIssuer );
+        root->AddAndPopChildL( issuer );
+        CleanupStack::PopAndDestroy( encodedIssuer );
+        }
+    else
+        {
+        // encode subjectKeyIdentifier [0] SubjectKeyIdentifier
+        CASN1EncOctetString* subjectKeyIdentifier =
+            CASN1EncOctetString::NewL( *iSubjectKeyIdentifier );
+        CASN1EncExplicitTag* taggedIdentifier =
+            CASN1EncExplicitTag::NewLC( subjectKeyIdentifier, KSubjectKeyIdentifierTag );
+        root->AddAndPopChildL( taggedIdentifier );
+        }
+
+    // encode keyEncryptionAlgorithm KeyEncryptionAlgorithmIdentifier
+    AddKeyEncryptionAlgorithmL( root );
+
+    // encode encryptedKey
+    CASN1EncOctetString* encryptedKey =
+        CASN1EncOctetString::NewLC( *iEncryptedKey );
+    root->AddAndPopChildL( encryptedKey );
+
+    return root;
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::TaggedEncoderLC
+// Returns ASN1 encoder for this instance
+// -----------------------------------------------------------------------------
+CASN1EncBase* CCMSKeyTransRecipientInfo::TaggedEncoderLC() const
+    {
+    return EncoderLC();
+    }
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::EncryptedKey
+// EncryptedKey getter
+// -----------------------------------------------------------------------------
+EXPORT_C const TDesC8&
+CCMSKeyTransRecipientInfo::EncryptedKey() const
+	{
+	return *iEncryptedKey;
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::IssuerAndSerialNumber
+// IssuerAndSerialNumber getter
+// -----------------------------------------------------------------------------
+EXPORT_C const CCMSIssuerAndSerialNumber*
+CCMSKeyTransRecipientInfo::IssuerAndSerialNumber() const
+	{
+	return iIssuerAndSerialNumber;
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::SubjectKeyIdentifier
+// SubjectKeyIdentifier getter
+// -----------------------------------------------------------------------------
+EXPORT_C const TDesC8*
+CCMSKeyTransRecipientInfo::SubjectKeyIdentifier() const
+	{
+	return iSubjectKeyIdentifier;
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::SetEncryptedKeyL
+// EncryptedKey setter
+// -----------------------------------------------------------------------------
+EXPORT_C void CCMSKeyTransRecipientInfo::SetEncryptedKeyL(
+	const TDesC8& aEncryptedKey )
+	{
+    HBufC8* encryptedKey = aEncryptedKey.AllocL();
+    delete iEncryptedKey;
+    iEncryptedKey = encryptedKey;
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::SetIssuerAndSerialNumberL
+// IssuerAndSerialNumber setter, deletes also SubjectKeyIdentifier and
+// sets version to KVersionIssuerAndSerialNumber
+// -----------------------------------------------------------------------------
+EXPORT_C void CCMSKeyTransRecipientInfo::SetIssuerAndSerialNumberL(
+	const CCMSIssuerAndSerialNumber& aIssuerAndSerialNumber )
+	{
+    CCMSIssuerAndSerialNumber* issuer = CCMSIssuerAndSerialNumber::NewL(
+        aIssuerAndSerialNumber.IssuerName(),
+        aIssuerAndSerialNumber.SerialNumber() );
+    delete iSubjectKeyIdentifier;
+    iSubjectKeyIdentifier = NULL;
+    delete iIssuerAndSerialNumber;
+    iIssuerAndSerialNumber = issuer;
+    iVersion = KCMSKeyTransRecipientInfoIssuerAndSerialNumberVersion;
+	}
+
+// -----------------------------------------------------------------------------
+// CCMSKeyTransRecipientInfo::SetSubjectKeyIdentifierL
+// SubjectKeyIdentifier setter. Copies parameters, deletes also
+// IssuerAndSerialNumber and set version to KVersionSubjectKeyIdentifier
+// -----------------------------------------------------------------------------
+EXPORT_C void CCMSKeyTransRecipientInfo::SetSubjectKeyIdentifierL(
+	const TDesC8& aSubjectKeyIdentifier )
+	{
+    HBufC8* identifier = aSubjectKeyIdentifier.AllocL();
+    delete iIssuerAndSerialNumber;
+    iIssuerAndSerialNumber = NULL;
+    delete iSubjectKeyIdentifier;
+    iSubjectKeyIdentifier = identifier;
+    iVersion = KCMSKeyTransRecipientInfoSubjectKeyIdentifierVersion;
+	}
+
+//  End of File