Relay device, wireless communications device, network system, program storage medium, and method

摘要

A relay device first uses latest authentication data to determine whether request-authentication data transmitted from a wireless communications device is valid. If the latest authentication data is used to determine that the request-authentication data is valid, the relay device carries out relayed communications with the wireless communications device. If the latest authentication data is used to determine that the request-authentication data is invalid, the relay device next uses a former authentication data to determine whether the request-authentication data is valid. If the former authentication data is used to determine that the request-authentication data is valid, the relay device provides the wireless communications device with the latest authentication data to update authentication data in the wireless communications device.