Abstract: An unauthorized intrusion prevention device is provided that, in response to detection of abnormality in an electronic control device mounted in a movable body, gives an instruction for executing measures for the movable body. The unauthorized intrusion prevention device acquires first information related to a protection function of the electronic control device and second information related to a function of the electronic control device other than the protection function. The unauthorized intrusion prevention device, using the first information, performs a first determination of whether the protection function is normal. The unauthorized intrusion prevention device, using the second information, performs a second determination of whether the function other than the protection function is normal or abnormal. The unauthorized intrusion prevention device, using results of first and second determination, determines as the measures a blocking method of blocking unauthorized information in the movable object.

Abstract: A log transmission controller includes a log acquirer, a priority storage, an update instruction acquirer, a priority updater and a transmitter. The log acquirer acquires a log indicating respective states of electronic control units connected to the log transmission controller, which is equipped in a moving object. The priority storage stores priority information indicating a priority for transmitting the log to a server, which is disposed at exterior of the moving object. The update instruction acquirer acquires an update instruction, which is generated by an update instructor equipped in the moving object, for instructing to update the priority information stored in the priority storage. The priority updater updates the priority information based on the update instruction. The transmitter transmits the log to the server based on the priority indicated by the updated priority information.

Abstract: An unauthorized intrusion prevention device is provided that, in response to detection of abnormality in an electronic control device mounted in a movable body, gives an instruction for executing measures for the movable body. The unauthorized intrusion prevention device acquires first information related to a protection function of the electronic control device and second information related to a function of the electronic control device other than the protection function. The unauthorized intrusion prevention device, using the first information, performs a first determination of whether the protection function is normal. The unauthorized intrusion prevention device, using the second information, performs a second determination of whether the function other than the protection function is normal or abnormal. The unauthorized intrusion prevention device, using results of first and second determination, determines as the measures a blocking method of blocking unauthorized information in the movable object.

Abstract: A center device is provided that receives a log from vehicle-mounted equipment transmitting the log based on an external transmission rule and analyzes the log to detect a cyber attack. Based on a result of the detecting, the center device determines update of the external transmission rule. The center devices transmits an external transmission rule update instruction. As attack depth of the cyber attack is deeper, the center device sets an external transmission target to the log that is generated in a deeper layer among layers in which constituent elements of the vehicle-mounted equipment are defined.

Abstract: A log transmission controller includes a log acquirer, a priority storage, an update instruction acquirer, a priority updater and a transmitter. The log acquirer acquires a log indicating respective states of electronic control units connected to the log transmission controller, which is equipped in a moving object. The priority storage stores priority information indicating a priority for transmitting the log to a server, which is disposed at exterior of the moving object. The update instruction acquirer acquires an update instruction, which is generated by an update instructor equipped in the moving object, for instructing to update the priority information stored in the priority storage. The priority updater updates the priority information based on the update instruction. The transmitter transmits the log to the server based on the priority indicated by the updated priority information.

Abstract: A vehicle communication system includes an onboard apparatus, a mobile device, and a key issuing apparatus provided outside the vehicle for issuing a key for cryptographic communication between the mobile device and the onboard apparatus. The mobile device and the onboard apparatus store the key, and perform the cryptographic communication using the key. The key issuing apparatus issues, to the onboard apparatus, the key and validity information indicating validity of the key. The onboard apparatus includes a determination section determining whether a validity ends, and an update request section transmitting a key update request to request the issuance of a new key. When the key update request has been received, the key issuing apparatus issues a new key to the mobile device, and issues a new key and validity information on the new key to the onboard apparatus.

Abstract: A vehicle communication system includes an onboard apparatus, a mobile device, and a key issuing apparatus provided outside the vehicle for issuing a key for cryptographic communication between the mobile device and the onboard apparatus. The mobile device and the onboard apparatus store the key, and perform the cryptographic communication using the key. The key issuing apparatus issues, to the onboard apparatus, the key and validity information indicating validity of the key. The onboard apparatus includes a determination section determining whether a validity ends, and an update request section transmitting a key update request to request the issuance of a new key. When the key update request has been received, the key issuing apparatus issues a new key to the mobile device, and issues a new key and validity information on the new key to the onboard apparatus.