Patent ID: 11972248
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 12:
13. A method to be executed by a center configured to communicate with an over-the-air (OTA) master configured to control software update for electronic control units mounted on a vehicle, the OTA master including one or more processors and a memory, the method comprising:
storing security information in which security levels required for the software update are associated with the electronic control units mounted on the vehicle, respectively; and
generating a distribution package with encryption applied at a security level associated with a target electronic control unit based on the security information,
wherein the target electronic control unit is an electronic control unit that is a target of the software update, and
wherein the one or more processors are further configured to, when the security level associated with the target electronic control unit is equal to or higher than a predetermined threshold, generate the distribution package with the encryption based on information unique to the vehicle.