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FPGA-based vehicle network intrusion detection system and message bit time collection method

A technology of intrusion detection system and in-vehicle network, applied in the field of FPGA-based in-vehicle network intrusion detection system and message bit time collection, can solve the problems of driver's personal safety threat, CAN bus camouflage attack, etc., to achieve personal safety guarantee and enhance safety the effect of improving the sampling rate and sampling accuracy

Active Publication Date: 2021-11-05
HUNAN NORMAL UNIVERSITY
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Problems solved by technology

[0005] The present invention provides a vehicle-mounted network intrusion detection system based on FPGA and a message bit time acquisition method, the purpose of which is to solve the problem that the CAN bus is vulnerable to masquerade attacks and the driver's personal safety is threatened

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  • FPGA-based vehicle network intrusion detection system and message bit time collection method
  • FPGA-based vehicle network intrusion detection system and message bit time collection method
  • FPGA-based vehicle network intrusion detection system and message bit time collection method

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Embodiment Construction

[0071] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0072] Aiming at the problem that the existing CAN bus is vulnerable to masquerading attacks and the driver's personal safety is threatened, the invention provides an FPGA-based vehicle network intrusion detection system and a message bit time acquisition method.

[0073] Such as Figure 1 to Figure 4 As shown, the embodiment of the present invention provides a kind of vehicle-mounted network intrusion detection system based on FPGA, comprises: data acquisition module 2, and the first end of described data acquisition module 2 is electrically connected with CAN bus communication unit 1, and described data Acquisition module 2 is deployed on FPGA, and described CAN bus communication unit 1 comprises a plurality of electronic control units, and each electr...

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Abstract

The present invention provides a vehicle-mounted network intrusion detection system based on FPGA and a message bit time acquisition method, comprising: Step 1, collecting the data frame transmitted by the CAN bus communication unit when the vehicle communicates normally with the CAN bus communication unit through the data acquisition module , the data acquisition module extracts the ID of the communicating electronic control unit in the current data frame and calculates the bit time; step 2, the data acquisition module inputs the acquired ID and bit time of the current communicating electronic control unit into the computer and stores ; Step 3, repeat step 1 to step 2, until the data collection time reaches the set threshold, perform step 4. The invention collects and detects by deploying an intrusion detection system based on FPGA, has small data collection delay time, high data sampling rate and high data sampling precision, and is more accurate and quicker in detection of masquerading attacks on automobile buses.

Description

technical field [0001] The invention relates to the technical field of vehicle network communication, in particular to an FPGA-based vehicle network intrusion detection system and a message bit time acquisition method. Background technique [0002] With the continuous development and application of advanced sensors, intelligent driving, and Internet of Vehicles technologies, automobiles are constantly evolving towards intelligence and networking, vehicle electronic systems are becoming more and more complex, and environmental perception and interaction inside and outside the vehicle are gradually increasing. It breaks the closed-loop system of traditional automobiles, and at the same time brings information security threats, making it possible for attackers to invade vehicles, capture electronic control units (ECUs), and disrupt normal driving of automobiles. [0003] CAN bus is the most widely used in-vehicle communication protocol today. Since its initial design considerat...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08
CPCH04L63/1416H04L67/12
Inventor 魏叶华程灿林佳颖朱露张锦
Owner HUNAN NORMAL UNIVERSITY