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CryptoCAN – Ensuring Confidentiality in Controller Area Networks for Agriculture

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dc.contributor.authorZimmermann, Till
dc.contributor.authorBauer, Jan
dc.contributor.authorAschenbruck, Nils
dc.contributor.editorReinhardt, Delphine
dc.contributor.editorLangweg, Hanno
dc.contributor.editorWitt, Bernhard C.
dc.contributor.editorFischer, Mathias
dc.date.accessioned2020-02-04T13:41:58Z
dc.date.available2020-02-04T13:41:58Z
dc.date.issued2020
dc.description.abstractThe 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.en
dc.identifier.doi10.18420/sicherheit2020_06
dc.identifier.isbn978-3-88579-695-4
dc.identifier.pissn1617-5468
dc.identifier.urihttps://dl.gi.de/handle/20.500.12116/31791
dc.language.isoen
dc.publisherGesellschaft für Informatik e.V.
dc.relation.ispartofSICHERHEIT 2020
dc.relation.ispartofseriesLecture Notes in Informatics (LNI) - Proceedings, Volume P-301
dc.subjectISO 11783
dc.subjectISOBUS
dc.subjectController Area Network
dc.subjectSecurity
dc.subjectPrivacy
dc.subjectConfidentiality
dc.subjectSmart Farming
dc.titleCryptoCAN – Ensuring Confidentiality in Controller Area Networks for Agricultureen
dc.typeText/Conference Paper
gi.citation.endPage90
gi.citation.publisherPlaceBonn
gi.citation.startPage79
gi.conference.date17.-20. März 2020
gi.conference.locationGöttingen, Germany
gi.conference.sessiontitleWissenschaftliche Beiträge

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