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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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* DSA shim classes definition
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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 __DSASHIM_H__
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#define __DSASHIM_H__
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#include <asymmetric.h>
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namespace CryptoSpi
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{
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class CSigner;
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class CVerifier;
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class CKey;
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}
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NONSHARABLE_CLASS(CDsaSignerShim) : public CDSASigner
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{
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public:
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/**
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Creates an CDsaSignerShim object which has the same interface
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as CDSASigner but delegates all work to a Crypto SPI plug-in.
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@param aKey The signing key
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@return A pointer to a CDsaSignerShim instance
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*/
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static CDsaSignerShim* NewL(const CDSAPrivateKey& aKey);
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/**
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Creates an CDsaSignerShim object which has the same interface
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as CDSASigner but delegates all work to a Crypto SPI plug-in.
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A pointer to the new object is placed on the cleanup stack
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@param aKey The signing key
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@return A pointer to a CDsaSignerShim instance
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*/
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static CDsaSignerShim* NewLC(const CDSAPrivateKey& aKey);
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/**
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Digitally signs the specified input message
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Note that in order to be interoperable and compliant with the DSS, aInput
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must be the result of a SHA-1 hash.
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@param aInput A SHA-1 hash of the message to sign
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@return A pointer to a new CSignature object
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@panic ECryptoPanicInputTooLarge If aInput is larger than MaxInputLength(),
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which is likely to happen if the caller
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has passed in something that has not been hashed.
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*/
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virtual CDSASignature* SignL(const TDesC8& aInput) const;
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//From MSignatureSystem
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virtual TInt MaxInputLength() const;
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/// Destructor
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~CDsaSignerShim();
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private:
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/// Constructor
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CDsaSignerShim(const CDSAPrivateKey& aKey);
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void ConstructL(const CDSAPrivateKey& aKey);
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private:
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/// SPI delegate
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CryptoSpi::CSigner* iSignerImpl;
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/// SPI requires all key to passed as key-objects
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CryptoSpi::CKey* iKey;
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};
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NONSHARABLE_CLASS(CDsaVerifierShim) : public CDSAVerifier
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{
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public:
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/**
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Creates an CDsaVerifierShim object which has the same interface
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as CDSAVerifier but delegates all work to a Crypto SPI plug-in.
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@param aKey The verification key
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@return A pointer to a CDsaVerifierShim instance
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*/
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static CDsaVerifierShim* NewL(const CDSAPublicKey& aKey);
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/**
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Creates an CDsaVerifierShim object which has the same interface
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as CDSAVerifier but delegates all work to a Crypto SPI plug-in.
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A pointer to the new object is placed on the cleanup stack
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@param aKey The verification key
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@return A pointer to a CDsaVerifierShim instance
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*/
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static CDsaVerifierShim* NewLC(const CDSAPublicKey& aKey);
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//From CVerifier
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virtual TBool VerifyL(const TDesC8& aInput, const CDSASignature& aSignature) const;
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//From MSignatureSystem
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virtual TInt MaxInputLength() const;
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// Destructor
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~CDsaVerifierShim();
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private:
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// Constructor
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CDsaVerifierShim(const CDSAPublicKey& aKey);
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void ConstructL(const CDSAPublicKey& aKey);
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private:
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/// SPI delegate
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CryptoSpi::CVerifier* iVerifierImpl;
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/// SPI requires all key to passed as key-objects
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CryptoSpi::CKey* iKey;
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};
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#endif // __DSASHIM_H__
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