Title:
SECURE COMMUNICATION METHOD FOR CONTROLLER AREA NETWORK BUS, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/168859
Kind Code:
A1
Abstract:
The present application provides a secure communication method for a controller area network (CAN) bus and a device, used to ensure security of CAN bus communication systems. In the present application, the method comprises: a first electronic unit generating, on the basis of a first security identifier, a CAN packet to be sent, an identifier field in the CAN packet being the first security identifier, and the first security identifier being determined according to a first identifier of the first electronic unit and an order-preserving one-way function; and the first electronic unit performing detection on a packet on the CAN bus, and determining whether to send the CAN packet according to a size relationship between a second security identifier in an identifier field of a detected packet and the first security identifier of the CAN packet. The invention enables security protection of identifiers of CAN packets, and preserves a priority decision function of identifiers of CAN packets, thereby ensuring secure communications of CAN bus communication system.
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Inventors:
LIN HSIAO-YING (CN)
YASMIN REHANA (CN)
HUANG TAO (CN)
YASMIN REHANA (CN)
HUANG TAO (CN)
Application Number:
PCT/CN2020/077345
Publication Date:
September 02, 2021
Filing Date:
February 29, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L29/06; H04L9/00
Foreign References:
| CN110661746A | 2020-01-07 | |||
| CN108494725A | 2018-09-04 | |||
| CN110545257A | 2019-12-06 | |||
| CN110247760A | 2019-09-17 | |||
| US20150312029A1 | 2015-10-29 | |||
| US20070038579A1 | 2007-02-15 |
Other References:
YANG HONG: "Research on CAN Bus Attack and Defense Detection Technology Based on Intelligent Network of Car", CHINESE MASTER'S THESES FULL-TEXT DATABASE, TIANJIN POLYTECHNIC UNIVERSITY, CN, 15 October 2017 (2017-10-15), CN, XP055841761, ISSN: 1674-0246
SUN YAO, WANG XIAONI, LIU PENG, YU ZHAOXIAN, WANG JIAPO, WU JIE: "Ｒesearch on vehicle CAN bus authentication and encryption mechanism", JOURNAL OF BEIJING INFORMATION SCIENCE & TECHNOLOGY UNIVERSITY, BEIJING INFORMATION SCIENCE & TECHNOLOGY UNIVERSITY, CN, vol. 34, no. 3, 1 June 2019 (2019-06-01), CN, pages 73 - 78, XP055841757, ISSN: 1674-6864, DOI: 10.16508/j.cnki.11-5866/n.2019.03.015
SUN YAO, WANG XIAONI, LIU PENG, YU ZHAOXIAN, WANG JIAPO, WU JIE: "Ｒesearch on vehicle CAN bus authentication and encryption mechanism", JOURNAL OF BEIJING INFORMATION SCIENCE & TECHNOLOGY UNIVERSITY, BEIJING INFORMATION SCIENCE & TECHNOLOGY UNIVERSITY, CN, vol. 34, no. 3, 1 June 2019 (2019-06-01), CN, pages 73 - 78, XP055841757, ISSN: 1674-6864, DOI: 10.16508/j.cnki.11-5866/n.2019.03.015
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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