Vehicle maintenance system, maintenance server device, authentication device, maintenance tool, computer program, and vehicle maintenance method

摘要

PROBLEM TO BE SOLVED: To provide a vehicle maintenance system having an improved mechanism for a vehicle such as an automobile to authenticate a maintenance tool. A maintenance server device 10 of a vehicle maintenance system encrypts a tool authentication key corresponding to a vehicle maintenance tool 30 with a key registration key to generate an encrypted tool authentication key, and the encrypted tool authentication key is used as a maintenance tool. Send to 30. The maintenance tool 30 transmits the encrypted tool authentication key to the authentication device 53 mounted on the vehicle 50, and executes the authentication process with the authentication device 53 using the tool authentication key. The authentication device 53 stores the same key registration key as the key registration key of the maintenance server device 10, decrypts it with the key registration key that stores the encryption tool authentication key, and outputs the tool authentication key of the decryption result of the encryption tool authentication key. It is used to execute an authentication process with the maintenance tool 30. [Selection diagram] Fig. 5