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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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* Asymmetric cipher 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_ASYMMETRICCIPHER_H__
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#define __CRYPTOAPI_ASYMMETRICCIPHER_H__
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#include <cryptospi/cryptoplugin.h>
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namespace CryptoSpi
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{
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/**
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The Asymmetric Cipher Base definition. Intended to allow plug-ins
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to implement extensible Asymmetric cipher functionality, and to work with all
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known existing Asymmetric algorithms, e.g. RSA DSA etc
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*/
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class MAsymmetricCipherBase : public MPlugin
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{
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public:
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/**
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Set the public key of this cipher. Reset() is called to reinitialise the cipher.
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@param aKey The public key.
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@leave KErrArgument if aKey is not of the expected type.
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@leave KErrNotSupported if the key is not of valid length.
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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 SetKeyL(const CKey& aKey) = 0;
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/**
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Set the crypto mode of this cipher. Reset() is called to reinitialise the cipher.
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@param aCryptoMode The crypto mode
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@leave KErrNotSupported if the specified mode is not supported.
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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 SetCryptoModeL(TUid aCryptoMode) = 0;
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/**
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Set padding Mode of this cipher. Reset() is called to reinitialise the cipher.
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@param aPaddingMode The padding mode
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@leave KErrNotSupported if the specified mode is not supported.
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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 SetPaddingModeL(TUid aPaddingMode) = 0;
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/**
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Gets the maximum size of input accepted by this object.
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@return The maximum input length allowed in bytes.
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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 TInt GetMaximumInputLengthL() const = 0;
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/**
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Gets the maximum size of output that can be generated by this object.
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@return The maximum output length in bytes.
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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 TInt GetMaximumOutputLengthL() const = 0;
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};
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class MAsymmetricCipher : public MAsymmetricCipherBase
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{
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public:
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/**
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Encrypts or decrypts aInput and appends the result to aOutput.
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@param aInput The input data to be processed.
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@param aOutput The resulting processed data appended to aOutput.
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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 ProcessL(const TDesC8& aInput, TDes8& aOutput) = 0;
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};
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class MAsyncAsymmetricCipher : public MAsymmetricCipherBase
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{
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public:
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/**
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Encrypts or decrypts aInput and appends the result to aOutput asynchronously
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@param aInput The input data to be processed.
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@param aOutput The resulting processed data appended to aOutput.
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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 ProcessL(const TDesC8& aInput, TDes8& aOutput, 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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}
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#endif //__CRYPTOAPI_ASYMMETRICCIPHER_H__
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