What is a Remote Authentication Dial In Service?

The original authentication implementation method of remote access dial-in user service (radius) for user authentication, authorization, and accounting (aaa) has the risk of system administrators stealing user accounts, and its large amount of calculation reduces user authentication efficiency. This article analyzes and improves the implementation of the radius protocol, reduces the implementation complexity of the authentication program, improves the efficiency of the radius server user authentication, and reduces the risk of password leakage, ensuring the security of confidential information in large-scale, long-distance network transmission. It is of universal significance for various security applications that currently widely adopt the radius protocol.