US 12,192,232 B2
Security system for in-vehicle network and method therefor
Ho Jin Jung, Bucheon-si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Jul. 2, 2021, as Appl. No. 17/366,402.
Claims priority of application No. 10-2020-0170854 (KR), filed on Dec. 8, 2020.
Prior Publication US 2022/0182408 A1, Jun. 9, 2022
Int. Cl. H04L 29/06 (2006.01); H04L 9/40 (2022.01); H04L 12/40 (2006.01)
CPC H04L 63/1466 (2013.01) [H04L 12/40 (2013.01); H04L 63/1416 (2013.01); H04L 63/20 (2013.01); H04L 2012/40215 (2013.01); H04L 2012/40273 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A security system for an in-vehicle network, the security system comprising:
a gateway including at least one processor, wherein the at least one processor is configured to:
transition an intrusion detection and prevention system (IDPS) loaded into the gateway from a function off mode to a first monitoring mode and detect an intrusion into a general message and a diagnostic message on the in-vehicle network;
transition from the first monitoring mode to a second monitoring mode and stop detecting the intrusion into the general message when there is a request to stop transmitting the general message from outside, and detect the intrusion into the diagnostic message; and
detect and block the general message introduced into the in-vehicle network;
wherein the at least one processor is configured to transition from the second monitoring mode to the first monitoring mode:
when a session maintenance request message is not received within a predetermined time in the second monitoring mode; or
when a communication control command to permit transmission of the general message from the outside in the second monitoring mode is received.