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Vehicle remote firmware updating method and device based on information security technology

A firmware update and information security technology, applied in the field of vehicle information security, can solve problems such as reducing the convenience of programming, restricting application occasions, and inability to operate remotely, so as to solve information security problems, ensure security and integrity, and improve security. sexual effect

Active Publication Date: 2017-05-17
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional firmware update method is mainly through serial programming. Although this method is low in cost and good in security, it cannot be programmed online and cannot be operated remotely, which reduces the convenience of programming and limits the application occasions.

Method used

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  • Vehicle remote firmware updating method and device based on information security technology
  • Vehicle remote firmware updating method and device based on information security technology
  • Vehicle remote firmware updating method and device based on information security technology

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0041] This embodiment provides a vehicle remote firmware update device based on information security technology. The update device is set in the vehicle communication system. The vehicle communication system includes a remote server and a target ECU connected through a wireless network. The update device includes a set An encryption module and a first communication module in the target ECU and a second communication module arranged in a remote server, wherein the encryption module generates a symmetric key for communication with the remote server and a key K for new firmware encryptio...

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Abstract

The invention relates to a vehicle remote firmware updating method and device based on an information security technology. The method comprises the following steps: generating a firmware updating request message by using a remote server, generating a first hash value according to a message digest of the firmware updating request message, and carrying out symmetric encryption packaging on the firmware updating request message and the first hash value to obtain a first message; carrying out symmetric decryption verification on the first message by using a target ECU; generating a secret key K by using the target ECU, carrying out symmetric encryption on the secret key K and then transmitting the secret key K to a remote server; encrypting a new firmware and a third hash value corresponding to the new firmware through the secret key K by using the remote server to generate a second message; decrypting the second message by the target ECU, calculating a fourth hash value, and judging whether the fourth hash value is the same as the third hash value or not; and programming the new firmware by the target ECU. Compared with the prior art, the vehicle remote firmware updating method has the advantages of high safety, convenience, reliability and the like.

Description

technical field [0001] The invention relates to the field of vehicle information security, in particular to a vehicle remote firmware update method and device based on information security technology. Background technique [0002] In recent years, thanks to the continuous major breakthroughs in Internet information technology, the automobile industry has entered the information age, and automobile products have gradually become intelligent. Related concepts such as "intelligent transportation" and "Internet of Vehicles" have also received extensive attention from scholars at home and abroad. The development and continuous improvement of related technologies in these fields will promote the continuous intelligence and informationization of automobiles. The traditional firmware update method is mainly through serial programming. Although this method is low in cost and good in security, it cannot be programmed online and cannot be operated remotely, which reduces the convenien...

Claims

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Application Information

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IPC IPC(8): H04L9/08H04L9/32H04L12/24H04L29/06
CPCH04L9/0822H04L9/0861H04L9/3236H04L41/082H04L63/0435H04L63/06H04L63/083
Inventor 罗峰谢凌风常欣伟胡强
Owner TONGJI UNIV
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