Safety detection method of automobile bus network design

Abstract

The invention belongs to the technical field of in-vehicle network detection, and in particular relates to a security detection method for an automotive bus network design, comprising: a message acquisition step, acquiring message information of a complete vehicle, and the content of the message information includes a message identifier and a corresponding data segment; In the packet processing step, the packet information is processed separately, the packet identifier is kept unchanged, and according to the preset processing flow, the corresponding data segments are processed respectively to obtain multiple attack packets, and the attack packets are sent in sequence For the in-vehicle network; the protection evaluation step records the security protection results of the in-vehicle network according to the vehicle's response to the attack message. The method can comprehensively and accurately detect the protection capability of the vehicle network against external attacks.

Description

technical field [0001] The invention belongs to the technical field of vehicle network detection, in particular to a safety detection method for vehicle bus network design. Background technique [0002] With the rapid development of intelligent networked vehicles, the controllers in the car can already interact with signals through the in-vehicle network to realize the functions of the whole vehicle. The security of the in-vehicle network is very important to the safety of driving. If there is a network attack such as tampering of in-vehicle data and counterfeiting of nodes, it will pose a threat to the safety of the people in the car. Therefore, it is necessary to detect the protection capability of the in-vehicle network. [0003] However, in the prior art, when detecting the security protection capability of the in-vehicle network, the technical idea still follows the Internet simulation attack idea, such as data replay, reverse direction or data flooding, to understand ...

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Problems solved by technology

[0003] However, in the existing technology, when testing the security protection capability of the vehicle network, the technical idea is still the simulated attack idea of ​​the Internet, such as through data replay, reverse or data flooding, to understand the security protection capability of the vehicle network

Although such a test method is highly versatile, it also has the following problems: First, the comprehensiveness of the test is insufficient. The communication matrix of the vehicle network covers a lot of functions, and the core of the Internet test method is indiscriminate data attack. , and it is aimed at network security rather than functional safety, and will not test individual functions in turn, and cannot detect all functions of the vehicle network; second, the test is not targeted enough, due to the particularity of the signal design method of the vehicle network communication matrix , to know whether a function in a certain state (such as power-on, start-up, acceleration, etc.) Definitions are processed, so targeted detection of a single function cannot be achieved

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