File indexing completed on 2025-01-05 04:37:18

 /*
     SPDX-FileCopyrightText: 2005 Joris Guisson <joris.guisson@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #ifndef MSEENCRYPTEDSERVERAUTHENTICATE_H
 #define MSEENCRYPTEDSERVERAUTHENTICATE_H
 
 #include "bigint.h"
 #include <peer/serverauthenticate.h>
 #include <util/sha1hash.h>
 
 namespace mse
 {
 class RC4Encryptor;
 
 const Uint32 MAX_SEA_BUF_SIZE = 608 + 20 + 20 + 8 + 4 + 2 + 512 + 2 + 68;
 /**
     @author Joris Guisson <joris.guisson@gmail.com>
 */
 class EncryptedServerAuthenticate : public bt::ServerAuthenticate
 {
     Q_OBJECT
 public:
     EncryptedServerAuthenticate(mse::EncryptedPacketSocket::Ptr sock);
     ~EncryptedServerAuthenticate() override;
 
 private Q_SLOTS:
     void onReadyRead() override;
 
 private:
     void handleYA();
     void sendYB();
     void findReq1();
     void calculateSKey();
     void processVC();
     void handlePadC();
     void handleIA();
 
 private:
     enum State {
         WAITING_FOR_YA,
         WAITING_FOR_REQ1,
         FOUND_REQ1,
         FOUND_INFO_HASH,
         WAIT_FOR_PAD_C,
         WAIT_FOR_IA,
         NON_ENCRYPTED_HANDSHAKE,
     };
     BigInt xb, yb, s, ya;
     bt::SHA1Hash skey, info_hash;
     State state;
     Uint8 buf[MAX_SEA_BUF_SIZE];
     Uint32 buf_size;
     Uint32 req1_off;
     Uint32 crypto_provide, crypto_select;
     Uint16 pad_C_len;
     Uint16 ia_len;
     RC4Encryptor *our_rc4;
 };
 
 }
 
 #endif