Provided is a small and inexpensive vehicle-mounted apparatus including a first vehicle-mounted device and a second vehicle-mounted device, a small and inexpensive relay apparatus including a first relay device and a second relay device, and computer programs executed by the vehicle-mounted apparatus and the relay apparatus. A relay apparatus includes a first relay device that executes a process in accordance with a first control program and a second relay device that executes a process in accordance with a second control program. A Hardwar Security Module (HSM) of the first relay device verifies the second control program. The second vehicle-mounted device computes associated data pertaining to the second control program. The HSM verifies the second control program by determining whether or not the associated data computed by the second relay device matches reference data.
Vehicle-mounted apparatus, relay apparatus and computer program
2019-11-05
Patent
Electronic Resource
English
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