ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,753, issued on Dec. 16, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Electronic control unit and storage medium" was invented by Kazuma Hoshi (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic control unit is configured to communicate with a different electronic control unit via an in-vehicle network. The electronic control unit includes processing circuitry. The processing circuitry is configured to count a failure count, the failure count indicating a number of times of failure in updating a cryptographic key for performing message authentication with the different electronic control unit, disable an update functi...