Patent ID: 9270652
Filing Date: 2016-02-23
CPC Classification: H04L,H04W

Claim Text:
1. A wireless communication authentication system comprising a mobile node connected to a base station through a wireless link and an authentication apparatus that authenticates authentication packet data sent from said mobile node, wherein said mobile node acquires an identification number of said base station through which said mobile node is connected to said authentication apparatus, calculates an authentication code using information including said identification number, a highest-level router number, and a mobile unit identifier and using a secret key that can be recognized by only said mobile node and said authentication apparatus, generates authentication packet data from said information and said authentication code, and sends said authentication packet data to said authentication apparatus through said base station; and wherein said authentication apparatus holds an identification number of a base station that is connected to and operates under said authentication apparatus, calculates the authentication code using said information in said authentication packet data and said secret key that said authentication apparatus recognizes, determines that authentication is successful when the calculated authentication code agrees with said authentication code included in said authentication packet data and when said identification number included in said authentication packet data agrees with said identification number that said authentication apparatus holds.