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82 lines
2.6 KiB
82 lines
2.6 KiB
/***************************************************************************
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* Copyright (C) 2005 by Joris Guisson *
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* joris.guisson@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#ifndef MSEENCRYPTEDSERVERAUTHENTICATE_H
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#define MSEENCRYPTEDSERVERAUTHENTICATE_H
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#include <util/sha1hash.h>
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#include <torrent/serverauthenticate.h>
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#include "bigint.h"
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namespace mse
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{
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class RC4Encryptor;
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const Uint32 MAX_SEA_BUF_SIZE = 608 + 20 + 20 + 8 + 4 + 2 + 512 + 2 + 68;
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/**
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@author Joris Guisson <joris.guisson@gmail.com>
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*/
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class EncryptedServerAuthenticate : public bt::ServerAuthenticate
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{
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Q_OBJECT
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public:
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EncryptedServerAuthenticate(mse::StreamSocket* sock, bt::Server* server);
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virtual ~EncryptedServerAuthenticate();
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private slots:
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virtual void onReadyRead();
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private:
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void handleYA();
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void sendYB();
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void findReq1();
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void calculateSKey();
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void processVC();
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void handlePadC();
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void handleIA();
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private:
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enum State
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{
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WAITING_FOR_YA,
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WAITING_FOR_REQ1,
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FOUND_REQ1,
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FOUND_INFO_HASH,
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WAIT_FOR_PAD_C,
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WAIT_FOR_IA,
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NON_ENCRYPTED_HANDSHAKE
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};
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BigInt xb,yb,s,ya;
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bt::SHA1Hash skey,info_hash;
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State state;
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Uint8 buf[MAX_SEA_BUF_SIZE];
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Uint32 buf_size;
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Uint32 req1_off;
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Uint32 crypto_provide,crypto_select;
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Uint16 pad_C_len;
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Uint16 ia_len;
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RC4Encryptor* our_rc4;
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};
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}
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#endif
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