OTA upgrading method for vehicle-mounted domain architecture CAN bus DoS attack

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

Active Publication Date: 2021-01-05
北京小墨数智科技有限公司
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  • 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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  • OTA upgrading method for vehicle-mounted domain architecture CAN bus DoS attack
  • OTA upgrading method for vehicle-mounted domain architecture CAN bus DoS attack
  • OTA upgrading method for vehicle-mounted domain architecture CAN bus DoS attack

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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 upgrading method for a vehicle-mounted domain architecture CAN bus DoS attack. The OTA upgrading method comprises the following steps that 1, version information of current upgrading software is stored in a slave MCU of a domain controller; 2, the packaged upgrade package is issued to the TBox from the cloud; 3, in the OTA upgrading process, the TBox issues the software package to a gateway; 4, the gateway issues the packets corresponding to the domain controllers to the corresponding domain controllers; 5, before the domain controller issues the upgrade package;6, the slave MCU detects whether the CAN network is subjected to DoS attack or not through a slave CAN controller and a slave CAN transceiver; 7, in the updating process, the slave MCU detects the flow of the CAN bus in real time all the time so as to judge whether DoS attacks happen to the bus or not; and 8, OTA issuing is completed. By means of the upgrading method, whether DOS attacks occur ornot in the upgrading process can be judged, and then whether upgrading occurs or not is judged.

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 Applications(China)
IPC IPC(8): H04L29/06H04L12/40H04L12/28G06F21/51
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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