Denso Corporation

Toyota Jidosha Kabushiki Kaisha

Ryosuke Murakami

Shogo Watanabe

Masumi Egawa

Tokuya Inagaki

Reiichiro Imoto

Shinnosuke Sugawara

Haruka Kuribayashi

Naoya Fukuchi

By an electronic control system, a log processing method, or a non-transitory computer-readable storage medium storing a log processing program, an electronic control unit is caused to: detect an abnormality in the electronic control unit when a power source state is an ignition-on state and an ignition-off state; acquire power source information of a vehicle; generate a security event log; store the security event log; and transmit the security event log.

Electronic control unit, electronic control system, log processing method, and non-transitory computer-readable storage medium storing log processing program

A communication system includes a relay device and a diagnosis target device. The relay device includes a port configured to connect a diagnostic tool. The diagnosis target device is connected to the relay device via a bus. When the diagnosis target device has received specific data whose source appears to be the diagnostic tool, the diagnosis target device sends an inquiry signal for inquiring of the relay device about a monitoring result for the specific data. The relay device determines in response to the inquiry signal whether the specific data is legitimate data from the diagnostic tool. The relay device sends the monitoring result including a determination result to the diagnosis target device.

Communication system, relay device, and diagnosis target device

An attack analyzer includes: a security log acquisition unit acquiring a security log including an abnormality detection signal generated by a security sensor mounted on an electronic control device constituting part of an electronic control system and indicating that the security sensor has detected an abnormality; an alive signal acquisition unit acquiring an alive signal; a prediction table storage unit storing a prediction table showing a correspondence relationship between a predicted attack route in the electronic control system and a predicted abnormality detection signal predicted to be generated by the security sensor; an attack route estimation unit estimating, using the prediction table, the attack route of an attack received by the electronic control system from the abnormality detection signal and the alive signal included in the security log; and an attack information output unit outputting attack information indicating the attack route.

Attack analyzer, attack analysis method and attack analysis program

Growing community of inventors

Kariya, Japan

Ryosuke Murakami