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/* Copyright (C) 2022 Dinglan Peng
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifndef __S_SECURITY_RSAAES_H__
#define __S_SECURITY_RSAAES_H__
#ifndef HAVE_NETTLE
#error "This header should not be included without HAVE_NETTLE defined"
#endif
#include <nettle/rsa.h>
#include <rfb/SSecurity.h>
#include <rdr/InStream.h>
#include <rdr/OutStream.h>
#include <rdr/RandomStream.h>
namespace rfb {
class SSecurityRSAAES : public SSecurity {
public:
SSecurityRSAAES(SConnection* sc, uint32_t secType,
int keySize, bool isAllEncrypted);
virtual ~SSecurityRSAAES();
bool processMsg() override;
const char* getUserName() const override;
int getType() const override {return secType;}
AccessRights getAccessRights() const override
{
return accessRights;
}
static StringParameter keyFile;
static BoolParameter requireUsername;
private:
void cleanup();
void loadPrivateKey();
void loadPKCS1Key(const uint8_t* data, size_t size);
void loadPKCS8Key(const uint8_t* data, size_t size);
void writePublicKey();
bool readPublicKey();
void writeRandom();
bool readRandom();
void setCipher();
void writeHash();
bool readHash();
void clearSecrets();
void writeSubtype();
bool readCredentials();
void verifyUserPass();
void verifyPass();
int state;
int keySize;
bool isAllEncrypted;
uint32_t secType;
struct rsa_private_key serverKey;
struct rsa_public_key clientKey;
uint32_t serverKeyLength;
uint8_t* serverKeyN;
uint8_t* serverKeyE;
uint32_t clientKeyLength;
uint8_t* clientKeyN;
uint8_t* clientKeyE;
uint8_t serverRandom[32];
uint8_t clientRandom[32];
char username[256];
char password[256];
AccessRights accessRights;
rdr::InStream* rais;
rdr::OutStream* raos;
rdr::InStream* rawis;
rdr::OutStream* rawos;
rdr::RandomStream rs;
};
}
#endif
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