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/****************************************************************************
** Copyright (C) 2001-2010 Klaralvdalens Datakonsult AB. All rights reserved.
**
** This file is part of the KD Tools library.
**
** Licensees holding valid commercial KD Tools licenses may use this file in
** accordance with the KD Tools Commercial License Agreement provided with
** the Software.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU Lesser General Public License version 2 and version 3 as published by the
** Free Software Foundation and appearing in the file LICENSE.LGPL included.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** Contact info@kdab.com if any conditions of this licensing are not
** clear to you.
**
**********************************************************************/
#ifndef __KDTOOLS_KDUPDATERCRYPTO_H__
#define __KDTOOLS_KDUPDATERCRYPTO_H__
#include "kdupdater.h"
class QByteArray;
class QIODevice;
#include <KDToolsCore/pimpl_ptr.h>
/**
* Class that provides cryptographic functionality like signing and verifying
* or encrypting and decrypting content.
*/
class KDTOOLS_UPDATER_EXPORT KDUpdaterCrypto {
public:
class PasswordProvider
{
public:
virtual ~PasswordProvider() {}
virtual QByteArray password() const = 0;
};
KDUpdaterCrypto();
virtual ~KDUpdaterCrypto();
/**
* The private key.
*/
QByteArray privateKey() const;
void setPrivateKey(const QByteArray &key);
/**
* The password for the private key.
*/
QByteArray privatePassword() const;
void setPrivatePassword(const QByteArray &passwd);
void setPrivatePasswordProvider( const PasswordProvider* provider );
/**
* The public key.
*/
QByteArray publicKey() const;
void setPublicKey(const QByteArray &key);
/**
* Encrypt content using the public key.
*/
QByteArray encrypt(const QByteArray &plaintext);
/**
* Decript encrypted content using the private key.
*/
QByteArray decrypt(const QByteArray &encryptedtext);
/**
* Sign content with the private key.
*/
QByteArray sign(const QByteArray &data);
QByteArray sign( const QString& path );
QByteArray sign( QIODevice* dev );
/**
* Verify signed content with the public key.
*/
bool verify(const QByteArray &data, const QByteArray &signature);
bool verify( const QString& dataPath, const QString& signaturePath );
bool verify( const QString& dataPath, const QByteArray& signature );
bool verify( QIODevice* dev, const QByteArray& signature );
private:
class Private;
kdtools::pimpl_ptr< Private > d;
};
#endif
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