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Message detection method, device, equipment and storage medium

A message detection and message technology, applied in the direction of data exchange through path configuration, digital transmission system, electrical components, etc., can solve the problems of easy bypass and missed reporting, avoid bypassing and missing reporting, and reduce costs wasteful effect

Active Publication Date: 2019-04-26
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

This method can only defend against the existing intrusion modes, and it is very easy to bypass and miss

Method used

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  • Message detection method, device, equipment and storage medium
  • Message detection method, device, equipment and storage medium
  • Message detection method, device, equipment and storage medium

Examples

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Embodiment Construction

[0083] In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

[0084] figure 1 A flowchart showing a packet detection method according to an embodiment of the present invention. Such as figure 1 As shown, the method may include the following steps:

[0085] Step S101, obtaining messages on the CAN bus;

[0086] Step S102, analyzing the message to obtain a data sequence;

[0087] Step S103, according to at least one message detection model corresponding to the data sequence, determine whether the message is an abnormal message;

[0088] Wherein, the message detection model is trained by using sample data sequences in sample messages.

[0089] Through the CAN bus, ...

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Abstract

The embodiment of the invention provides a message detection method and device, equipment and a storage medium. The method includes the following steps: acquiring a message on a CAN bus; analyzing themessage to obtain a data sequence; and judging whether the message is an abnormal message according to at least one message detection model corresponding to the data sequence, wherein the message detection model is obtained by training a sample data sequence in a sample message. According to the technical scheme of the embodiment of the invention, abnormal messages at the instruction level and the parameter level can be identified, unknown intrusion behaviors can be found, bypasses and omissions can be avoided, and the cost waste caused by manual maintenance rules can be reduced.

Description

technical field [0001] The invention relates to the field of vehicle safety, in particular to a message detection method, device, equipment and storage medium. Background technique [0002] The Controller Area Network (CAN) bus protocol has become the standard bus for vehicle computer control systems and embedded industrial control area networks. At present, there are some attacks on vehicles by invading the CAN bus, which poses a great security threat to the normal driving of vehicles. The current common CAN bus-based intrusion detection is based on rules and signatures, that is, in the form of blacklists. This method can only defend against the existing intrusion modes, and it is very easy to bypass and miss. Contents of the invention [0003] Embodiments of the present invention provide a message detection method, device, device and storage medium to solve one or more technical problems in the prior art. [0004] In a first aspect, an embodiment of the present invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/24H04L12/40
CPCH04L12/40H04L41/145H04L43/0823H04L43/16H04L2012/40215
Inventor 刘焱
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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