An ota upgrade method for can bus dos attack on vehicle domain architecture

A CAN bus and vehicle-mounted technology, applied in the field of automotive information security, can solve problems such as upgrade failure and waste of resources, achieve efficient and safe upgrades, avoid car conflicts, and ensure safe upgrades

Active Publication Date: 2022-01-11
北京小墨数智科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current OTA remote upgrade process of automobiles, once a DoS attack is encountered, the upgrade will fail, and then re-upgrade, which will cause a lot of waste of resources

Method used

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  • An ota upgrade method for can bus dos attack on vehicle domain architecture
  • An ota upgrade method for can bus dos attack on vehicle domain architecture
  • An ota upgrade method for can bus dos attack on vehicle domain architecture

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the embodiments given in the accompanying drawings.

[0027] figure 1 It is the topological diagram of the in-vehicle network architecture that the upgrade solution of the present invention is oriented to. According to the development trend of the architecture, the domain architecture is the next-generation architecture of connected vehicles, and will also undertake the function of OTA remote upgrade. The architecture is T-Box, GW (Gateway), DC (Domain Controller) and the underlying ECU from top to bottom. Among them, the architecture has five domains, which are body control domain, chassis domain, power control domain, infotainment domain and ADAS domain. In each domain, ECUs have similar functions, and the domain controller can integrate some control algorithms to control the ECUs in the domain, saving software and hardware resources. In order to ensure the real-time communication t...

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Abstract

The invention discloses an OTA upgrade method for CAN bus DoS attack on a vehicle-mounted domain architecture, comprising the following steps: step 1, the version information of the current upgrade software is stored in the slave MCU of the domain controller; step 2, the packaged upgrade package is downloaded from The cloud sends it to T-Box; step 3, during the OTA upgrade process, T-Box sends the software package to the gateway; step 4, the gateway sends the package corresponding to each domain controller to the corresponding domain controller; step 5. Before the domain controller sends the upgrade package; step 6, the slave MCU detects whether the CAN network is under DoS attack through the slave CAN controller and the slave CAN transceiver; step 7, during the update process, the slave MCU has been detecting the CAN network in real time Bus traffic to determine whether a DoS attack has occurred on the bus; step 8, the OTA delivery is completed. The upgrading method of the present invention can realize judging whether a DOS attack occurs in the upgrading process, and then judging whether it is upgraded.

Description

technical field [0001] The invention relates to the field of automobile information security, is applicable to the research on vehicle-mounted bus safety protection technology, and specifically relates to an OTA security upgrade method for CAN bus DoS attack of vehicle-mounted domain architecture. Background technique [0002] With the improvement of vehicle networking and intelligence, in order to meet the needs of consumers in terms of function, safety, and comfort, more and more ECUs in automobiles need to continuously update their firmware. Issues such as security holes in the version. The traditional software update method is mainly implemented by professionals in 4S shops, but there are problems such as untimely updates and inconvenient updates. When vehicles face serious information security issues, due to the inherent shortcomings of traditional upgrade methods, car manufacturers often use vehicle recalls to repair or upgrade security vulnerabilities. OTA is the ov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/40H04L12/40H04L12/28G06F21/51
CPCH04L63/1416H04L12/2869H04L12/40G06F21/51
Inventor 冀浩杰赵付霞王颖会彭晶徐迟
Owner 北京小墨数智科技有限公司
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