(Semi-)Automatically Parsing Private Protocols for In-Vehicle ECU Communications

In-vehicle electronic control unit (ECU) communications generally count on private protocols (defined by the manufacturers) under controller area network (CAN) specifications. Parsing the private protocols for a particular vehicle model would be of great significance in testing the vehicle’s resista...

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Autores principales:	Tongtong Chen, Xiangxue Li
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	CAN ECU in-vehicle network private protocols Science Q Astrophysics QB460-466 Physics QC1-999
Acceso en línea:	https://doaj.org/article/c6865ca4517f46d4a7620d9312ecf9a3
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id	oai:doaj.org-article:c6865ca4517f46d4a7620d9312ecf9a3
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spelling	oai:doaj.org-article:c6865ca4517f46d4a7620d9312ecf9a32021-11-25T17:30:09Z(Semi-)Automatically Parsing Private Protocols for In-Vehicle ECU Communications10.3390/e231114951099-4300https://doaj.org/article/c6865ca4517f46d4a7620d9312ecf9a32021-11-01T00:00:00Zhttps://www.mdpi.com/1099-4300/23/11/1495https://doaj.org/toc/1099-4300In-vehicle electronic control unit (ECU) communications generally count on private protocols (defined by the manufacturers) under controller area network (CAN) specifications. Parsing the private protocols for a particular vehicle model would be of great significance in testing the vehicle’s resistance to various attacks, as well as in designing efficient intrusion detection and prevention systems (IDPS) for the vehicle. This paper proposes a suite of methods for parsing ECU private protocols on in-vehicle CAN network. These methods include an algorithm for parsing discrete variables (encoded in a discrete manner, e.g., gear state), an algorithm for parsing continuous variables (encoded in a continuous manner, e.g., vehicle speed), and a parsing method based on upper-layer protocols (e.g., OBD and UDS). Extensive verifications have been performed on five different brands of automobiles (including an electric vehicle) to demonstrate the universality and the correctness of these parsing algorithms. Some parsing tips and experiences are also presented. Our continuous-variables parsing algorithm could run in a semi-automatic manner and the parsing algorithm from upper-layer protocols could execute in a completely automatic manner. One might view the results obtained by our parsing algorithms as an important indicator of penetration testing on in-vehicle CAN network.Tongtong ChenXiangxue LiMDPI AGarticleCANECUin-vehicle networkprivate protocolsScienceQAstrophysicsQB460-466PhysicsQC1-999ENEntropy, Vol 23, Iss 1495, p 1495 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	CAN ECU in-vehicle network private protocols Science Q Astrophysics QB460-466 Physics QC1-999
spellingShingle	CAN ECU in-vehicle network private protocols Science Q Astrophysics QB460-466 Physics QC1-999 Tongtong Chen Xiangxue Li (Semi-)Automatically Parsing Private Protocols for In-Vehicle ECU Communications
description	In-vehicle electronic control unit (ECU) communications generally count on private protocols (defined by the manufacturers) under controller area network (CAN) specifications. Parsing the private protocols for a particular vehicle model would be of great significance in testing the vehicle’s resistance to various attacks, as well as in designing efficient intrusion detection and prevention systems (IDPS) for the vehicle. This paper proposes a suite of methods for parsing ECU private protocols on in-vehicle CAN network. These methods include an algorithm for parsing discrete variables (encoded in a discrete manner, e.g., gear state), an algorithm for parsing continuous variables (encoded in a continuous manner, e.g., vehicle speed), and a parsing method based on upper-layer protocols (e.g., OBD and UDS). Extensive verifications have been performed on five different brands of automobiles (including an electric vehicle) to demonstrate the universality and the correctness of these parsing algorithms. Some parsing tips and experiences are also presented. Our continuous-variables parsing algorithm could run in a semi-automatic manner and the parsing algorithm from upper-layer protocols could execute in a completely automatic manner. One might view the results obtained by our parsing algorithms as an important indicator of penetration testing on in-vehicle CAN network.
format	article
author	Tongtong Chen Xiangxue Li
author_facet	Tongtong Chen Xiangxue Li
author_sort	Tongtong Chen
title	(Semi-)Automatically Parsing Private Protocols for In-Vehicle ECU Communications
title_short	(Semi-)Automatically Parsing Private Protocols for In-Vehicle ECU Communications
title_full	(Semi-)Automatically Parsing Private Protocols for In-Vehicle ECU Communications
title_fullStr	(Semi-)Automatically Parsing Private Protocols for In-Vehicle ECU Communications
title_full_unstemmed	(Semi-)Automatically Parsing Private Protocols for In-Vehicle ECU Communications
title_sort	(semi-)automatically parsing private protocols for in-vehicle ecu communications
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c6865ca4517f46d4a7620d9312ecf9a3
work_keys_str_mv	AT tongtongchen semiautomaticallyparsingprivateprotocolsforinvehicleecucommunications AT xiangxueli semiautomaticallyparsingprivateprotocolsforinvehicleecucommunications
_version_	1718412310269132800

(Semi-)Automatically Parsing Private Protocols for In-Vehicle ECU Communications

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