TERMINAL IDENTIFICATION METHOD, AUTHENTICATION METHOD, AUTHENTICATION SYSTEM, SERVER, TERMINAL, RADIO BASE STATION, PROGRAM, AND RECORDING MEDIUM

摘要

Provided is a terminal identification method capable of identifying a plurality of terminal ID, performing bidirectional communication between a terminal and a network, and protecting privacy. Moreover, provided are an authentication method and an authentication system capable of reducing the radio communication procedure, the radio communication amount, and the power consumption without requiring a complicated calculation process. A server and a terminal share a Hash function and an initial value decided for each terminal, calculate the same temporary ID according to the initial value Hashed by the Hash function the same number of times, and identifies the terminal by using the calculated temporary ID. Moreover, the server and the terminal hold a common Hash function and authentication information and upon communication, acquire an authentication communication parameter from temporarily common communication parameter, and generates an authentication key by using the authentication information, the authentication communication parameter, and the Hash function. By using the generated authentication key, at least one of the server and the terminal performs authentication.