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Vehicle safety diagnosis method and device, equipment and medium

A diagnosis method and a diagnosis device technology, which are applied in the field of vehicle communication, can solve problems such as failure to meet the security requirements of vehicle diagnosis, low security of diagnosis sessions, and easy cracking by violence.

Active Publication Date: 2020-10-23
BEIJING TOPSEC NETWORK SECURITY TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above security authentication methods are easy to be cracked by brute force, and the security of the diagnostic session is not high, which cannot meet the security requirements for vehicle diagnostics

Method used

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  • Vehicle safety diagnosis method and device, equipment and medium
  • Vehicle safety diagnosis method and device, equipment and medium
  • Vehicle safety diagnosis method and device, equipment and medium

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Embodiment Construction

[0034] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0035] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

[0036] At present, after the diagnostic instrument is authenticated with the electronic control unit of the vehicle, the electronic control unit enters an unlocked state, allowing the subsequent diagnostic operations of the diagnostic instrument to be performed, but it cannot identify whether the...

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PUM

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Abstract

The embodiment of the invention relates to a vehicle safety diagnosis method and device, equipment and a medium. The method is applied to a diagnostic apparatus and comprises the steps of: sending a safety authentication request to an electronic control unit; receiving a control random number returned by the electronic control unit, and generating first bidirectional authentication information andfirst session verification information based on the control random number; and if it is determined that bidirectional authentication with the electronic control unit succeeds based on the first bidirectional authentication information, sending a diagnosis instruction to the electronic control unit for diagnosis based on the first session verification information. By adopting the technical scheme,session verification in the session diagnosis process is added on the basis of bidirectional authentication of the diagnostic apparatus and the electronic control unit of the vehicle, so that the session can be prevented from being hijacked and replayed, and the safety of vehicle diagnosis is greatly improved.

Description

technical field [0001] The present disclosure relates to the technical field of vehicle communication, and in particular to a vehicle safety diagnosis method, device, equipment and medium. Background technique [0002] With the development of the Internet of Vehicles, the data obtained based on the built-in diagnostic interface in the vehicle is becoming more and more abundant, and the diagnostic operation of the vehicle is becoming easier and easier. For example, based on the On Board Diagnostics (OBD) system, it is possible to remotely control and operate vehicle components such as windows and doors, and to diagnose, flash, and configure the Electronic Control Unit (ECU) in the vehicle. Modify and so on. [0003] If the diagnostic interface does not perform any effective identity verification for the connected diagnostic instrument, once it is exploited by the attacker, it can attack and maliciously operate the gateway, vehicle information box (T-BOX) and electronic contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 杨威陈强
Owner BEIJING TOPSEC NETWORK SECURITY TECH