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84 lines
2.6 KiB
84 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 MSEENCRYPTEDAUTHENTICATE_H
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#define MSEENCRYPTEDAUTHENTICATE_H
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#include <util/sha1hash.h>
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#include <torrent/authenticate.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_EA_BUF_SIZE = 622 + 512;
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/**
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* @author Joris Guisson <joris.guisson@gmail.com>
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*
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* Encrypted version of the Authenticate class
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*/
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class EncryptedAuthenticate : public bt::Authenticate
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{
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Q_OBJECT
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public:
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EncryptedAuthenticate(const TQString& ip, Uint16 port, const bt::SHA1Hash& info_hash, const bt::PeerID& peer_id, bt::PeerManager* pman);
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virtual ~EncryptedAuthenticate();
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private slots:
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virtual void connected();
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virtual void onReadyRead();
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private:
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void handleYB();
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void handleCryptoSelect();
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void findVC();
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void handlePadD();
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private:
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enum State
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{
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NOT_CONNECTED,
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SENT_YA,
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GOT_YB,
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FOUND_VC,
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WAIT_FOR_PAD_D,
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NORMAL_HANDSHAKE
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};
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BigInt xa,ya,s,skey,yb;
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State state;
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RC4Encryptor* our_rc4;
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Uint8 buf[MAX_EA_BUF_SIZE];
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Uint32 buf_size;
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Uint32 vc_off;
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Uint32 dec_bytes;
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bt::SHA1Hash enc,dec;
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Uint32 crypto_select;
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Uint16 pad_D_len;
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Uint32 end_of_crypto_handshake;
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};
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}
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#endif
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