PROSAGA码农传奇-通讯技术-编码通信

<div class =“post-text”itemprop =“text”>
  
    我假设你想使用defacto标准进行网络加密SSL（安全套接字层）。
  
  
    客户端很容易，基本上你用SSL套接字包装你的标准套接字，客户端是内置的，所以没有什么特别的安装或导入。
  
   <pre>
 <code>
 #!/usr/bin/python3

import socket
import sys
from builtins import input

def main():

try:
        serverHostNumber = input("Please enter the ip address of the server: \n")
        serverPortNumber = input("Please enter the port of the server: \n")

# create a socket object
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        # connection to hostname on the port.
        sock.connect((serverHostNumber, int(serverPortNumber)))
        TcpSocket = socket.ssl(sock)

while True:
            data = TcpSocket.recv(1024)
            print("Server : ", data)
            sendData = input("Client : ")

if sendData == "exit":
                    TcpSocket.close()
                    sys.exit()

TcpSocket.send(sendData.encode(encoding='ascii', errors='strict'))

except Exception as e:
        print("The error: ", e) 
        sys.exit()

if __name__ == "__main__" : main()

</code>
 </pre>
  
    服务器端更难。
  
  
    首先，您需要安装
    <a href="https://pypi.python.org/pypi/pyOpenSSL/0.13" rel="nofollow noreferrer">
      pyopenssl
    </A>
  
  
    之后你将需要生成一个私钥和一个证书（除非你已经有一个），这在linux上非常简单，只需从命令行运行：
  
   <pre>
 <code>
 openssl genrsa 1024 > key
openssl req -new -x509 -nodes -sha1 -days 365 -key key > cert

</code>
 </pre>
  
    对于Windows，您需要
    <a href="https://stackoverflow.com/questions/2355568/create-a-openssl-certificate-on-windows">
      使用这些方法之一
    </A>
  
  
    最后，一旦完成所有先决条件，SSl就会为服务器端包装套接字，就像它对客户端一样。
  
   <pre>
 <code>
 import socket
from OpenSSL import SSL

context = SSL.Context(SSL.SSLv23_METHOD)
context.use_privatekey_file('key')
context.use_certificate_file('cert')

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s = SSL.Connection(context, s)
s.bind(("0.0.0.0",8000))
        s.listen(2)
        print("I'm waiting for a connection...!")
        (client, (ip, port)) = s.accept()
        print("Connection recived from the {}".format(ip))
        messageToClient = "You connected to the server sucessfuly.\n"
        client.send(messageToClient.encode('ascii'))

dataRecived = "Message!"

while True:
                dataRecived = client.recv(1024)
                print("Client :", dataRecived)
                print("Server :")
                dataSend = raw_input()
                client.send(str(dataSend) + "\n")

print("Connection has been closed.")
        client.close()
        print("Server has been shutdowned.")
        s.close()

def main():

try:
                print("Server has started.")
                connectionOrianted()

except :
                print("Maybe connection terminated.")
        finally:
                print("Session has closed.")

</code>
 </pre>
  
    我没有机会测试这些脚本，但它们应该可以工作。我希望这回答了你的问题。
  
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