NDLI: PLC Guard: A practical defense against attacks on cyber-physical systems

Content Provider	IEEE Xplore Digital Library
Author	Malchow, J.-O. Marzin, D. Klick, J. Kovacs, R. Roth, V.
Copyright Year	2015
Description	Author affiliation: Hasso-Plattner-Inst. fur Softwaresystemtechnik GmbH, Germany (Kovacs, R.) \|\| Secure Identity Res. Group, Freie Univ. Berlin, Berlin, Germany (Malchow, J.-O.; Marzin, D.; Klick, J.; Roth, V.)
Abstract	Modern societies critically depend on cyberphysical systems that control most production processes and utility distribution networks. Unfortunately, many of these systems are vulnerable to attacks, particularly advanced ones. While researchers are investigating sophisticated techniques in order to counter these risks, there is a need for solutions that are practical and readily deployable. In this paper, we adapt the classic ACCAT Guard concept to the protection of programmable logic controllers (PLCs), which are an essential ingredient of existing cyber-physical systems. A PLC Guard intercepts traffic between a, potentially compromised, engineering workstation and a PLC. Whenever code is transferred to a PLC, the guard intercepts the transfer and gives the engineer an opportunity to compare that code with a previous version. The guard supports the comparison through various levels of graphical abstraction and summarization. By operating a simple and familiar interface, engineers can approve or reject the transfer using a trusted device that is significantly harder to subvert by attackers. We developed a PLC Guard prototype in order to reify our ideas on how it should be designed. In this paper, we describe the guard's design and its implementation. In order to arrive at realistic PLC code examples, we implemented a miniature packaging plant as well as attacks on it.
Starting Page	326
Ending Page	334
File Size	5750438
Page Count	9
File Format	PDF
ISBN	9781467378765
DOI	10.1109/CNS.2015.7346843
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-28
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Visualization Conferences Production Software Malware Workstations
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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