Python网络编程 —— 验证客户端的合法性

永亮 2020-11-17 13:43:04
编程 Python 网络 验证 客户端


1、验证客户端的合法性

登录:只要有个性化设计的时候就需要登录

登录和合法性验证二选一,如果做登录的功能就不需要做合法性验证

server

import os
import socket
import hashlib
SECRET_KEY = b'yongliang' # 设置秘钥
def check_client(conn):
randbytes = os.urandom(32) # 随机产生一个32位的随机字节
conn.send(randbytes) # 将随机字节发送给client
# 服务端对随机字节进行hashlib动态加盐(秘钥)加密
md5 = hashlib.md5(SECRET_KEY)
md5.update(randbytes)
code = md5.hexdigest()
code_cli = conn.recv(32).decode('utf-8') # 接收client发来的加密后的字符串
return code == code_cli # 进行客户端验证 返回bool值
sk = socket.socket()
sk.bind(('127.0.0.1',9001))
sk.listen()
while True:
conn,addr = sk.accept()
if not check_client(conn):continue # 验证判断 如果得到False -->continue
print('进程正常的通信了') # 验证通过 执行其他程序

client

import os
import socket
import hashlib
SECRET_KEY = b'yongliang'
def check_client():
randbytes = sk.recv(32) # 接收服务端发送的32位的随机字节
# 客户端对随机字节进行hashlib动态加盐(秘钥)加密
md5 = hashlib.md5(SECRET_KEY)
md5.update(randbytes)
code = md5.hexdigest().encode('utf-8')
sk.send(code) # 将加密后的字符串发送到server
sk = socket.socket()
sk.connect(('127.0.0.1',9001))
check_client()
print('正常的客户端通信') # 验证通过 则执行其他程序

明文进行加密时也可以用 hmac 模块

import os
import hmac # 在加密内容基础上增加盐
SECRET_KEY = b'yongliang'
randbytes = os.urandom(32) # 随机产生一个32位的字节
mac = hmac.new(SECRET_KEY,randbytes) # 对随机字节进行动态加密
ret = mac.digest()
print(ret)
版权声明
本文为[永亮]所创,转载请带上原文链接,感谢
https://www.cnblogs.com/caiyongliang/p/13993750.html

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