CryptoCAN - Ensuring Confidentiality in Controller Area Networks for Agriculture
Autor(en): | Zimmermann, T. Bauer, J. Aschenbruck, N. |
Herausgeber: | Reinhardt, D. Langweg, H. Witt, B.C. Fischer, M. |
Stichwörter: | Agriculture; Confidentiality; Control system synthesis; Controller Area Network; Controller-area network; Controller-area-network bus; Controllers; Interoperability; ISO 11783; ISOBUS; Machinery; Privacy; Process control; Risk assessment, Complex integrations; Security; Smart Farming; Vertical integration, Cryptography | Erscheinungsdatum: | 2020 | Herausgeber: | Gesellschaft fur Informatik (GI) | Journal: | Lecture Notes in Informatics (LNI), Proceedings - Series of the Gesellschaft fur Informatik (GI) | Volumen: | P-301 | Startseite: | 79 | Seitenende: | 90 | Zusammenfassung: | The Controller Area Network (CAN) bus is widely used in existing machinery. Facing more and more vertical integration with more complex devices and integration into public communication networks, its nature as a broadcast-only system without security measures poses serious risks to confidentiality of transmitted data. In this paper, we propose a Lightweight, Length Preserving and Robust Confidentiality Solution (LLPR-CS) to retrofit encryption in existing systems, while maintaining full interoperability with these systems. The overhead of our approach is negligible. Therefore, it can be used with existing hardware. By reinterpreting unused bits in the CAN frame format of the ISO 11898 standard, it is possible to build a fully transparent encrypted tunnel in non-confidential network parts, while keeping the ability to decrypt all traffic in an out-of-band-system without knowledge of specific cryptographic state details. By conducting a performance evaluation, we highlight the benefits of LLPR-CS and discuss its advantages compared to existing approaches. © 2020 Gesellschaft fur Informatik (GI). All rights reserved. |
Beschreibung: | Conference of Sicherheit, Schutz und Zuverlassigkeit, Konferenzband der 10. Jahrestagung des Fachbereichs Sicherheit der Gesellschaft fur Informatik e.V. (GI), SICHERHEIT 2020 - Security, Protection and Reliability, 10th Annual Conference of the Special Interest Group on Security of the German Informatics Society (GI), SICHERHEIT 2020 ; Conference Date: 17 March 2020 Through 20 March 2020; Conference Code:182625 |
ISBN: | 9783885796954 | ISSN: | 1617-5468 | DOI: | 10.18420/sicherheit2020_06 | Externe URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117222425&doi=10.18420%2fsicherheit2020_06&partnerID=40&md5=656077241d9325bc20b0be83b79c365b |
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