Method for protecting vehicle data transmission system from intrusions

摘要

A system and method for detecting an intrusion or a bug in a vehicle data transmission system. A hardware-software complex (HSC) is used to find a bug or intrusion device in a vehicle electronic system. The HSC is connected to CAN-buses in the vehicle and also scans radio waves, which can be used to transmit data to a bug. This complex is a self-teaching CAN-system used to monitor and block harmful commands in the vehicle. Each vehicle (of each model, type and settings) has its own reference bus data (parameters), which is used to detect added modules and malicious data sent over the vehicle's CAN bus.

主权项

1. A system for protecting a vehicle data bus from intrusions and bugs, the system comprising:
a vehicle data bus based on a CAN (Controller Area Network) standard; a vehicle bus protection module attached to the vehicle data bus and configured to monitor a state of the vehicle data bus indicative of a malicious data sequence on the vehicle data bus; a transceiver implemented as part of the vehicle bus protection module, wherein if there is no malicious data sequence detected:
the transceiver is configured to monitor a resistive or a capacitive vehicle bus state and to detect a lower resistance or a higher capacitance of the vehicle data bus that indicates a presence of intrusion in the vehicle data bus; andthe vehicle data bus protection module is configured to detect an additional device attached to the vehicle data bus by estimating a total number of the devices based on a measured resistance of the vehicle data bus and to send a notification about the additional device to a driver display panel if the measured resistance is abnormal.