Device authentication system, the manufacturer key generation device, the device key generation apparatus, manufacturing equipment, cooperation authentication device, equipment playback key generation device, the device authentication methods and equipment certification program

摘要

The key management server 200 generates a manufacturer key using the maker ID. The device management device 300 stores the manufacturer key and generates the device authentication key using the manufacturer key and the device ID. The manufacturing apparatus 110 stores the manufacturer ID, the apparatus ID, and the apparatus authentication key. The communication terminal 400 acquires the maker ID, the device ID, and the authentication data from the manufacturing device 110. The communication terminal 400 transmits the manufacturer ID and the device ID to the key management server 200. The key management server 200 generates a device authentication key using the manufacturer ID and the device ID, and the communication terminal 400 receives the device authentication Get the key. Then, the communication terminal 400 verifies the authentication data using the device authentication key.