sl@0: /*
sl@0: * Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: * Declares key helper classes for PKCS#10 that perform the algorithm dependant work.
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalComponent
sl@0:  @released 
sl@0: */
sl@0: 
sl@0: #ifndef __PKCS10KEYHELPER_H__
sl@0: #define __PKCS10KEYHELPER_H__
sl@0: 
sl@0: #include <mctkeystore.h>
sl@0: #include <x509keys.h>
sl@0: #include "x509keyencoder.h"
sl@0: 
sl@0: class CASN1EncBase;
sl@0: class CASN1EncSequence;
sl@0: class CASN1EncBitString;
sl@0: 
sl@0: /**
sl@0:  * Abstract base class defines the interface for PKCS#10 key helpers.
sl@0:  *
sl@0:  * This class is fairly dumb, and provides a generic interface for various
sl@0:  * keystore functionality.  The methods are called from the RunL of
sl@0:  * CPKCS10Request.
sl@0:  *
sl@0:  * The implementation decodes the public key to create a public key object -
sl@0:  * this is pretty wasteful, as the first thing we're going to do is re-encode it
sl@0:  * again, mostly in exactly the same format.  However it's simpler and less
sl@0:  * error-prome to do it this way.
sl@0:  */
sl@0: class CPKCS10KeyHelper : public CBase
sl@0: 	{
sl@0:  public:
sl@0: 
sl@0: 	/**
sl@0: 	 * Create appropriate subclass of CPKCS10KeyHelper depending on key
sl@0: 	 * alogorithm.
sl@0: 	 *
sl@0: 	 * @param aKeyStore The keystore to use - this object takes ownership.
sl@0: 	 * @param aKeyInfo The key to use.
sl@0: 	 */	
sl@0: 	static CPKCS10KeyHelper* CreateKeyHelperL(MCTKeyStore& aKeyStore,
sl@0: 											  const CCTKeyInfo& aKeyInfo,
sl@0: 											  const TDesC8& aExportedKey,
sl@0: 											  const TAlgorithmId aDigestId);
sl@0: 
sl@0: 	virtual ~CPKCS10KeyHelper();
sl@0: 
sl@0:  public:
sl@0: 
sl@0: 	void FetchPublicKey(TRequestStatus& aStatus);
sl@0: 	void CancelFetchPublicKey();
sl@0: 
sl@0: 	virtual void OpenSigner(TRequestStatus& aStatus) = 0;
sl@0: 	virtual void CancelOpenSigner() = 0;
sl@0: 
sl@0: 	virtual void SignDigestL(const TDesC8& aDigest, TRequestStatus& aStatus) = 0;
sl@0: 	virtual void CancelSignDigest() = 0;
sl@0: 
sl@0: 	virtual CASN1EncBase* EncodeKeyLC();
sl@0: 	virtual CASN1EncSequence* EncodeSignatureAlgorithmLC();
sl@0: 	virtual CASN1EncBitString* EncodeSignatureLC() = 0;
sl@0: 	
sl@0:  protected:
sl@0: 
sl@0: 	CPKCS10KeyHelper(MCTKeyStore& aKeyStore, const CCTKeyInfo& aKeyInfo);
sl@0: 
sl@0: 	virtual void CreateKeyEncoderL(const TDesC8& aExportedKey,
sl@0: 								   const TAlgorithmId aDigestId) = 0;
sl@0: 	
sl@0: 	CASN1EncBase* DigestInfoLC(const TDesC8& digest);
sl@0: 
sl@0:  protected:
sl@0: 
sl@0: 	MCTKeyStore&		iKeyStore;
sl@0: 	const CCTKeyInfo&	iKeyInfo;
sl@0: 	TX509KeyEncoder*	iKeyEncoder;
sl@0: 	};
sl@0: 
sl@0: /**
sl@0:  * Implementation of PKCS#10 key helper for RSA keys.
sl@0:  */
sl@0: class CPKCS10RSAKeyHelper : public CPKCS10KeyHelper
sl@0: 	{
sl@0:  public:
sl@0: 
sl@0: 	CPKCS10RSAKeyHelper(MCTKeyStore& aKeyStore, const CCTKeyInfo& aKeyInfo);
sl@0: 	virtual ~CPKCS10RSAKeyHelper();
sl@0: 
sl@0:  private:
sl@0: 
sl@0: 	virtual void OpenSigner(TRequestStatus& aStatus);
sl@0: 	virtual void CancelOpenSigner();
sl@0: 
sl@0: 	virtual void SignDigestL(const TDesC8& aDigest, TRequestStatus& aStatus);
sl@0: 	virtual void CancelSignDigest();	
sl@0: 
sl@0: 	virtual void CreateKeyEncoderL(const TDesC8& aExportedKey, const TAlgorithmId aDigestId);
sl@0: 	virtual CASN1EncBitString* EncodeSignatureLC();
sl@0: 
sl@0: private:
sl@0: 
sl@0: 	CRSAPublicKey*		iPublicKey;
sl@0: 	MRSASigner*			iRSASigner;
sl@0: 	CRSASignature*		iRSASignature;
sl@0: 	HBufC8* 			iDigestBuf;
sl@0: 	};
sl@0: 
sl@0: /**
sl@0:  * Implementation of PKCS#10 key helper for DSA keys.
sl@0:  */
sl@0: class CPKCS10DSAKeyHelper : public CPKCS10KeyHelper
sl@0: 	{
sl@0:  public:
sl@0: 
sl@0: 	CPKCS10DSAKeyHelper(MCTKeyStore& aKeyStore, const CCTKeyInfo& aKeyInfo);
sl@0: 	virtual ~CPKCS10DSAKeyHelper();
sl@0: 
sl@0:  private:
sl@0: 	
sl@0: 	virtual void OpenSigner(TRequestStatus& aStatus);
sl@0: 	virtual void CancelOpenSigner();
sl@0: 
sl@0: 	virtual void SignDigestL(const TDesC8& aDigest, TRequestStatus& aStatus);
sl@0: 	virtual void CancelSignDigest();	
sl@0: 
sl@0: 	virtual void CreateKeyEncoderL(const TDesC8& aExportedKey, const TAlgorithmId aDigestId);
sl@0: 	virtual CASN1EncSequence* EncodeSignatureAlgorithmLC();
sl@0: 	virtual CASN1EncBitString* EncodeSignatureLC();
sl@0: 
sl@0:  private:
sl@0: 
sl@0:  	CDSAPublicKey* 		iPublicKey;
sl@0: 	MDSASigner*			iDSASigner;
sl@0: 	CDSASignature*		iDSASignature;
sl@0: 	};
sl@0: 
sl@0: #endif