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