US 12,113,782 B2
Information processing apparatus, information processing method and computer readable medium
Yuya Takatsuka, Tokyo (JP); Yuta Atobe, Tokyo (JP); and Naoki Itoi, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
Filed on Apr. 20, 2021, as Appl. No. 17/235,191.
Application 17/235,191 is a continuation of application No. PCT/JP2018/045703, filed on Dec. 12, 2018.
Prior Publication US 2021/0243176 A1, Aug. 5, 2021
Int. Cl. H04L 9/40 (2022.01); H04L 12/40 (2006.01); H04W 12/06 (2021.01)
CPC H04L 63/08 (2013.01) [H04L 12/40 (2013.01); H04W 12/06 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An information processing apparatus comprising:
processing circuitry
to analyze a measured waveform which is a waveform obtained by measuring one of a voltage value and an impedance value of a bus line;
to determine whether or not a new device is connected to the bus line, the new device being a device not included in configuration information which includes one or more devices known to be connected to the bus line, perform authentication for each of the devices connected to the bus line, and when the new device is connected to the bus line, acquire authentication information to be used for the authentication for the new device, and perform the authentication for the new device; and
to determine whether or not illegitimate operation is performed on the bus line, by using the configuration information, an analysis result of the measured waveform, and an authentication result of the device,
wherein when the configuration information related only to the devices necessary for traveling of a vehicle on which the information processing apparatus is installed has changed, the processing circuitry determines that a devices necessary for traveling of a vehicle has been removed,
wherein when the configuration information related only to the devices necessary for traveling of a vehicle has not changed, the processing circuitry determines whether the measured waveform matches a last time measured waveform to determine whether a silent node is connected, and
wherein the processing circuitry
acquires an identifier of the new device from the new device, when the new device is connected to the bus line, and
notifies an outside apparatus of the acquired identifier of the new device, the outside apparatus storing authentication information of a legitimate device in association with an identifier of the legitimate device, and when the identifier of the new device matches the identifier of the legitimate device, acquires authentication information of the new device from the outside apparatus.