Free Hide IP，顾名思义，就是“免费隐藏IP”。一款可以隐藏用户电脑IP地址的小工具，只要选择需要伪装成IP地址对应的国家（例如美国IP地址），之后启动隐藏服务，软件就会将用户的真实IP地址隐藏起来，提而代之的就是目标国家的IP地址，而且还能设置每个多长时间自动更换IP地址-Free Hide IP, as the name suggests, is " Free Hide IP" . A gadget that can hide the user' s comp

The MIFARE Classic is the most widely used contactless smart card chip in the world. Its communication is based on the open ISO-14443-A standard, but the entire authentication and encryption protocols are proprietary. Several academic researchers h