Patent ID: 11930021
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 17:
18. The unauthorized frame detection method according to claim 13, wherein the electronic control unit is configured to:
to determine whether the frame is received;
to check whether the received frame is for SOME/IP SD communication;
to check whether the received frame includes a manifest file if the received frame is not for SOME/IP SD communication;
to check whether the manifest file included in the received frame is legitimate by verifying the message authentication code included in the manifest file or by verifying an electronic signature, if the received frame includes the manifest file;
to update the permission rule in the permission table in accordance with the manifest file if the manifest file is legitimate;
to check whether the service identifier, the receiving port, and the service type in the received SOME/IP SD communication match the permission rule included in the permission table if the received frame is for SOME/IP SD communication;
to check whether the received frame is a frame that includes vehicle speed information if the received frame does not include a manifest file;
to update the vehicle state based on the vehicle speed information included in the frame if the received frame is a frame that includes vehicle speed information;
to transfer the received frame to one of the plurality of networks if the vehicle state is updated or if the service identifier, the receiving port, and the service type in the received SOME/IP SD communication match the permission rule included in permission table; and
to discard the received SOME/IP SD communication if the service identifier, the receiving port, and the service type in the received SOME/IP SD communication do not match the permission rule included in permission table.