Patent ID: 8527762

Claim:
A method for realizing an authentication center, the method comprising: (A) a user equipment sending an authentication request to an authentication center and applying for temporary authentication information for logging in an application system, the authentication center assigning a first authentication random code to the user equipment, and the user equipment calculating a first response code according to the first authentication random code and sending the first response code to the authentication center, after authenticating and authorizing the user equipment, the authentication center assigning the temporary authentication information to the user equipment; (B) the user equipment sending a login request to the application system, and the application system assigning a second authentication random code to the user equipment, the user equipment calculating a second response code according to the second authentication random code and said temporary authentication information, and sending the second response code to the application system; (C) the application system sending the second response code to the authentication center, and the authentication center performing authentication and authorization; and (D) the authentication center returning an authentication result to the application system, and the application system returning the authentication result to the user equipment.