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Vehicle-mounted network protection method and system, storage medium and equipment

A vehicle-mounted network and equipment technology, applied in the transmission system, bus network, digital transmission system, etc., can solve the problems of increasing vehicle security attacks, vehicle remote control, injection, etc., and achieve the effect of avoiding illegal attacks and ensuring safety

Pending Publication Date: 2022-04-12
JIANGLING MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a protection method, system, storage medium and equipment for a vehicle-mounted network, so as to solve the problem that the external diagnostic equipment can monitor the working conditions of the vehicle controller and other functional modules of the vehicle in real time at this stage, thereby increasing the safety of the vehicle. The hidden danger of attack, or the remote control of the vehicle, or the injection of malicious code

Method used

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  • Vehicle-mounted network protection method and system, storage medium and equipment
  • Vehicle-mounted network protection method and system, storage medium and equipment
  • Vehicle-mounted network protection method and system, storage medium and equipment

Examples

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Embodiment 1

[0049] Such as figure 1 As shown, the embodiment of the present invention provides a protection method for a vehicle network, which is applied to a diagnostic CAN line connected to an external diagnostic device and a communication interface of the vehicle, including steps S101-S104.

[0050] S101. Obtain an access request message sent by a target diagnostic device.

[0051] After the step of obtaining the access request message sent by the target diagnostic device, it also includes:

[0052] Acquiring the serial code of the target diagnostic device according to the access request message;

[0053] judging whether the serial code of the target diagnostic device exists in the access blacklist;

[0054] If so, terminating access to the target diagnostic device;

[0055] If not, verify the legitimacy of the access request message.

[0056] The above steps can quickly prevent access to devices in the blacklist.

[0057] S102. Verify the legality of the access request message. ...

Embodiment 2

[0086] Please refer to figure 2 , this embodiment also provides a protection system for a vehicle network, which is applied to a diagnostic CAN line, and the diagnostic CAN line is connected to an external diagnostic device and a communication interface of the vehicle, including:

[0087] Obtaining module: used to obtain the access request message sent by the target diagnostic device.

[0088] The acquisition module is also used for:

[0089] Acquiring the serial code of the target diagnostic device according to the access request message;

[0090] judging whether the serial code of the target diagnostic device exists in the access blacklist;

[0091] If so, terminating access to the target diagnostic device;

[0092] If not, verify the legitimacy of the access request message.

[0093] Verification module: used to verify the legitimacy of the access request message.

[0094] The verification module is also used to:

[0095] Analyzing the access request message and obta...

Embodiment 3

[0116] Please refer to image 3 , the present invention also proposes a protection device for a vehicular network, which is shown as a protection device for a vehicular network in the third embodiment of the present invention, including a memory 20, a processor 10, and a device stored in the memory and operable on the processor. A computer program 30, when the processor 10 executes the computer program 30, implements the above-mentioned method for protecting the vehicle network.

[0117] Wherein, the protective equipment of the vehicle network may specifically be a computer, a server, a host computer, etc., and the processor 10 may be a central processing unit (Central Processing Unit, CPU), a controller, a microcontroller, a microprocessor, etc. in some embodiments. A processor or other data processing chips are used for running program codes stored in the memory 20 or processing data, such as executing access restriction programs and the like.

[0118] Wherein, the memory 2...

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Abstract

The invention provides a vehicle-mounted network protection method and system, a storage medium and equipment, and is applied to a diagnosis CAN line, the diagnosis CAN line is connected with external diagnosis equipment and a communication interface of a vehicle, the method comprises the following steps: obtaining an access request message sent by target diagnosis equipment, verifying the legality of the access request message, and if the access request message is legal, sending the access request message to the target diagnosis equipment; if yes, performing security authentication on the target diagnosis equipment and judging whether the target diagnosis equipment passes the security authentication or not, and if yes, opening an access channel between the target diagnosis equipment and the vehicle. According to the diagnosis CAN line, the legality of the access request message of the target diagnosis equipment is verified, and the security authentication is carried out on the target diagnosis equipment, so that the purpose of dual protection on the vehicle-mounted network can be achieved, the security of the vehicle-mounted network is effectively guaranteed, and the vehicle-mounted network is prevented from being illegally attacked.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a protection method, system, storage medium and equipment for a vehicle network. Background technique [0002] In the engineering development, manufacturing EOL stage and after-sales stage of the whole vehicle, it is necessary to use the external diagnostic equipment Tester to read the vehicle controller information and perform diagnostic operations such as clearing fault codes, key distribution, and four-wheel calibration. [0003] At this stage, external diagnostic equipment can be connected to the OBD interface through the CAN bus, and the OBD interface is directly connected to the gateway controller through the wiring harness, which can monitor the working status of the vehicle controller and other functional modules of the vehicle in real time, such as reading the vehicle controller Communication messages and diagnostic information can also be used to flash the controller online t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/40G07C5/08H04L12/40
Inventor 崔晓峰陈江波谢颖茹张懿赵能卿刘婷
Owner JIANGLING MOTORS
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