Fortinet, Inc.
SECURING INTRA-VEHICLE COMMUNICATIONS VIA A CONTROLLER AREA NETWORK BUS SYSTEM BASED ON BEHAVIORAL STATISTICAL ANALYSIS

Abstract:

Systems and methods for enforcement of secure data communications between nodes of a Controller Area Network (CAN) bus implemented in a vehicle are provided. According to one embodiment, a node coupled with the CAN bus receives a data frame broadcast from a source node and extracts information from the data frame. The node analyzes coherence between the extracted information and historical information observed by the node. When a result of the analyzing coherence indicates that the data frame is valid (i.e., the extracted information is coherent with the historical information), the node updates the historical information based on the data frame; otherwise the node drops the data frame to discontinue processing of the data frame.