crypto/weakcryptospi/inc/spi/verifierplugin.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 15 Mar 2010 12:46:43 +0200
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/*
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* Copyright (c) 2006-2010 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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* verifier abstract interface
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*
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*/
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/**
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 @file
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 @publishedPartner
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 @released
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*/
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#ifndef __CRYPTOAPI_VERIFIER_H__
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#define __CRYPTOAPI_VERIFIER_H__
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#include <cryptospi/signerplugin.h>
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namespace CryptoSpi
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	{
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	/**
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	The Verifier definition. Intended to allow plug-ins
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	to implement extensible signature verifier functionality, and to work with all
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	known existing  signature algorithms, e.g. DSA, RSA etc
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	*/
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	class MVerifier : public MSignatureBase
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		{
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	public:
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		/**
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		Verify the signature
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		@param aInput	The hash of the message to be verified
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		@param aSignature	The signature of the hash
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		@param aVerificationResult	Indicates the success or failure of the verification
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		@leave ...	Any of the crypto error codes defined in 
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  					cryptospi_errs.h or any of the system-wide error codes.
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		*/
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		virtual void VerifyL(const TDesC8& aInput, const CCryptoParams& aSignature, TBool& aVerificationResult) = 0;
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		/**
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		Unsign the signature
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		@param aOutput	The unsigned hash
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		@param aSignature	The signature of the hash
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		@leave ...	Any of the crypto error codes defined in 
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  					cryptospi_errs.h or any of the system-wide error codes.
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		*/
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		virtual void InverseSignL(HBufC8*& aOutput, const CCryptoParams& aSignature) = 0;
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		};
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	class MAsyncVerifier : public MSignatureBase
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		{
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	public:
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		/**
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		Verify the signature
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		@param aInput	The hash of the message to be verified
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		@param aSignature	The signature of the hash
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		@param aVerificationResult	Indicates the success or failure of the verification
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		@param aRequestStatus
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		@leave ...	Any of the crypto error codes defined in 
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  					cryptospi_errs.h or any of the system-wide error codes.
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		*/
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		virtual void VerifyL(const TDesC8& aInput, const CCryptoParams& aSignature, TBool& aVerificationResult, TRequestStatus& aRequestStatus) = 0;
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		/**
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		Unsign the signature
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		@param aOutput	The unsigned hash
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		@param aSignature	The signature of the hash
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		@param aRequestStatus the request status.
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		@leave ...	Any of the crypto error codes defined in 
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  					cryptospi_errs.h or any of the system-wide error codes.
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		*/
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		virtual void InverseSignL(HBufC8*& aOutput, const CCryptoParams& aSignature, TRequestStatus& aRequestStatus) = 0;
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		/**
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		Cancel the outstanding request
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		*/
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		virtual void Cancel() = 0;
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		};
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	} //namespace CryptoSpi
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#endif //__CRYPTOAPI_VERIFIER_H__
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