VEHICLE NETWORK AUTHENTICATION SYSTEM, AND VEHICLE NETWORK AUTHENTICATION METHOD

摘要

Provided is a vehicle network authentication system such that processing by a vehicle control device can be smoothed while security of communication using dummy data is maintained. A vehicle control device (100) as an authenticating entity is provided with an authentication unit (130) that allocates authority in accordance with the amount of authentication of data for authentication transmitted from a vehicle control device (200) as an authenticated entity. The vehicle control device (200) includes an authentication data generation unit (210) that generates the data for authentication, a data division unit (220) that divides the generated data for authentication, and a dummy data addition unit (230) that adds dummy data as data that is transmitted to a vehicle network together with the data for authentication.