每个人都应该有属于自己的VPN协议

既然有些技术是基于协议识别的和DPI的，为什么不自己创造一种VPN协议呢？

一个及其简单的原型，需要配合squid和国外VPS使用，欢迎来信索取使用方式。

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#!/usr/bin/env python import sys import socket import threading import time help_msg =""" Info: pysectunnel forwards encrypted data from local_port to sink_port on sink_host. Usage: pysectunnel local_port sink_host sink_port """ LOGGING=0 LOG_LEVEL=1 def log(log_level, log_str): if LOGGING: if log_level <= LOG_LEVEL: print '%s:%s' % (time.ctime(), log_str) sys.stdout.flush() def encrypt_data(data): encrypted_data=[] for i in range(len(data)): encrypted_data.append( chr(ord(data[i]) ^ 0x17) ) return ''.join(encrypted_data) class TunnelThread(threading.Thread): def __init__(self, local_sc, sink_sc, encrypt_enable): threading.Thread.__init__(self) self.local_sc = local_sc self.sink_sc = sink_sc log(1, 'Creating new tunnel thread %s ( %s -> %s )' % ( self,self.local_sc.getpeername(), self.sink_sc.getpeername() ) ) def run(self): while True: try: data = self.local_sc.recv(1024) if not data: break encrypted_data = encrypt_data(data) self.sink_sc.sendall(encrypted_data) except: break log(1, 'Terminating tunnel thread %s' % self) class TunnelManager: def __init__(self, local_port, sink_host, sink_port): self.local_port = int(local_port) self.sink_host = sink_host self.sink_port = int(sink_port) print 'Initializing PySecTunnel...' def work(self): print 'PySecTunnel working...' manager_sc = socket.socket(socket.AF_INET, socket.SOCK_STREAM) manager_sc.bind(('0.0.0.0', self.local_port)) manager_sc.listen(5) while True: local_sc, address = manager_sc.accept() print 'Accepted connection from %s:%s' % address sink_sc = socket.socket( socket.AF_INET, socket.SOCK_STREAM ) try: sink_sc.connect( ( self.sink_host, self.sink_port ) ) log (1, 'Creating new tunnel thread %s ( %s -> %s )' % (self, local_sc.getpeername(), sink_sc.getpeername() ) ) except: log(0, 'Error connecting') TunnelThread( local_sc, sink_sc, 0 ).start() TunnelThread( sink_sc, local_sc, 1 ).start() def main(): if len(sys.argv) != 4: print help_msg return 1 local_port = sys.argv[1] sink_host = sys.argv[2] sink_port = sys.argv[3] tunnel_manager = TunnelManager(local_port, sink_host, sink_port) tunnel_manager.work() return 0 if __name__=='__main__': sys.exit(main())

原文：http://strongbaby.me/papa/?p=215
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本地：python 111.py 本地代理端口 vps地址 9999
服务器：python 111.py 9999 localhost 3128
加密：异或0×17
不知是否有理解错?