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Data encryption method, data decryption method, device and electric vehicle

A data encryption and data decryption technology, applied in secure communication devices, data exchange networks, data exchange through path configuration, etc., to avoid illegally opening doors or starting vehicles, and to achieve the effect of secure encryption

Active Publication Date: 2021-10-29
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a data encryption method, decryption method, device and electric vehicle, thereby solving the problem of safe transmission of vehicle data in the prior art

Method used

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  • Data encryption method, data decryption method, device and electric vehicle
  • Data encryption method, data decryption method, device and electric vehicle
  • Data encryption method, data decryption method, device and electric vehicle

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Embodiment Construction

[0077] 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.

[0078] The present invention aims at the security problem of the Controller Area Network (CAN) network in the prior art, which leads to the problem that the vehicle will be illegally opened or started, and provides a data encryption method, a decryption method, a device and an electric Automobile, realizing the security of data transmission between the fingerprint identification module and other modules.

[0079] Such as figure 1 As shown, it is a schematic diagram of the steps of the data encryption method of the embodiment of the present invention. The data encryption method of the embodiment of the present invention is applied to the fingerprint identification module, including:

[0080] Step S101, when it is determined that the currently received fi...

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Abstract

The invention provides a data encryption method, a data decryption method, a device and an electric vehicle, and relates to the technical field of vehicle safety. The data encryption method comprises the following steps: when it is determined that currently received fingerprint information is consistent with pre-stored fingerprint information, according to a pre-stored frame structure encryption algorithm, encrypting a controller area network (CAN) message containing the fingerprint recognition result to obtain first CAN message information; obtaining a dynamic key; encrypting the first CAN message information according to the dynamic key to obtain second CAN message information transmitted in a CAN bus; and sending the second CAN message information to a vehicle body controller / a vehicle machine through a CAN bus. According to the scheme of the invention, safe and complete transmission of data is realized, and the safety of the vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a data encryption method, a decryption method, a device and an electric vehicle. Background technique [0002] Cars are the most frequently used means of transportation in life. With the rapid development of science and technology, technologies such as car sharing and biometric identification have brought great convenience to our lives. However, technologies such as car sharing and biometric identification are based on the Internet of Vehicles. While intelligence brings us convenience, it also faces system security issues brought about by smart cars. CAN) bus interacts with other modules of the vehicle, so there is a security problem with the CAN network. Since the fingerprint identification result is suitable for opening the door or starting the engine, a very high level of security is required. If the CAN bus protocol is cracked, the car will be illegally opened or s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/08H04L12/40
CPCH04L63/0428H04L63/083H04L63/0846H04L63/0861H04L9/0869H04L12/40006H04L2012/40215H04L2012/40273
Inventor 孙跃强马如斌王海川王金奎张友焕
Owner BEIJING ELECTRIC VEHICLE
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