?hmac模塊：

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1.模塊初識：

import hmac # h = hmac.new() #括號里要給它連個bytes類型，一個是自定義的secret_key，一個是你想進行加密的bytes # 密文 = h.digest() # hmac.compare_digest() #括號內傳另外一個密文，看是否相等 h = hmac.new(b'secret',b'382835896') digest = h.digest() print(digest) #>>>> b'\xa4<\r\xf8\xec0\x7f\x8ao\xec\xa7(\xf7[t\xfb' h = hmac.new(b'secret',b'382835896') digest2 = h.digest() print(hmac.compare_digest(digest,digest2)) #返回true hmac模塊初識

2.使用hmac模塊，驗證client端的合法性

import os import hmac import socket secret_key = b'wwl' sk = socket.socket() sk.bind(('127.0.0.1',8080)) sk.listen() def check_client(conn):msg = os.urandom(32)conn.send(msg)h = hmac.new(secret_key,msg)digest = h.digest()client_digest = conn.recv(1024)return hmac.compare_digest(digest,client_digest)conn,addr = sk.accept() res = check_client(conn) if res:print('合法的客戶端')conn.close() else:print('不合法的客戶端')conn.close() sk.close() server端-hmac import socket import hmacsecret_key = b'wwl111' sk = socket.socket() sk.connect(('127.0.0.1',8080))msg = sk.recv(1024) h = hmac.new(secret_key,msg) client_digest = h.digest() sk.send(client_digest) sk.close() client端-hamc

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socketserver模塊：

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解讀socketserver源碼 —— http://www.cnblogs.com/Eva-J/p/5081851.html?

socketserver模塊可以開啟server端的多線程，讓多個client端訪問server端：

import socketserver class MyServer(socketserver.BaseRequestHandler):def handle(self):#原來socket寫的程序里所有和conn有關的操作，都挪到handle方法里#self.request#相當于conn #一旦客戶端斷開連接了，handle方法也應該結束while True:msg = self.request.recv(1024).decode('utf-8')if msg == 'q':breakprint(msg)info = input('%s>>>> '%msg[:2])self.request.send(info.encode('utf-8'))if __name__ == '__main__':server = socketserver.ThreadingTCPServer(('127.0.0.1',8080),MyServer)server.serve_forever() server端-socketserver import socket sk = socket.socket() sk.connect(('127.0.0.1',8080)) while True:msg = input('>>>> ')if msg == 'q':breaksk.send(msg.encode('utf-8'))ret = sk.recv(1024).decode('utf-8')print(ret) sk.close() client端-socketserver

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轉載于:https://www.cnblogs.com/gkx0731/p/9727249.html

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