Patent ID: 11947950
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. A method to be executed by a center configured to communicate with an over-the-air (OTA) master configured to control a software update for an electronic control unit mounted on a vehicle, the center including one or more processors and a memory, the method comprising:
storing security information in which regions are associated with security levels required for the software update;
receiving, from the vehicle, position information indicating a position of the vehicle; and
generating a distribution package that is encrypted at a security level associated with a region where the vehicle is located based on the security information and the position information, including:
when the security level associated with the region where the vehicle is located is equal to or higher than a predetermined threshold, generating the distribution package encrypted based on information unique to the vehicle, and
when the security level associated with the region where the vehicle is located is lower than the predetermined threshold, generating the distribution package encrypted based on information common to a plurality of the vehicles.