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Towards secure wireless TTEthernet for industrial process automation applications
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0003-2018-0996
Halmstad University, Halmstad, Sweden.
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0002-7159-7508
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0002-2419-2735
2014 (English)In: 19th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2014, 2014, Article number 7005310- p.Conference paper, Published paper (Refereed)
Abstract [en]

TTEthernet is a communication platform which builds on Ethernet, but extends it to include fault-tolerance and real-time mechanisms. The existing TTEthernet technology is developed for wired networks. A natural step for improving and extending the current application field is the introduction of a mixed wired and wireless network. However, this step requires research both about possible adaptation of existing systems as well as implementation of new technologies. A central research question is the security aspects of real-time sensor networks using wired and wireless technologies based on TTEthernet. In this paper, we identify and classify the most important aspects to consider in order to provide secure communications in such safety-critical industrial applications and propose a potential solution to address identified issues.

Place, publisher, year, edition, pages
2014. Article number 7005310- p.
Keyword [en]
Accident prevention, Factory automation, Fault tolerance, Mobile security, Sensor networks, Wireless telecommunication systems, Application fields, Communication platforms, Industrial processs, Real-time mechanisms, Real-time sensor networks, Research questions, Security aspects, Wired and wireless, Wireless sensor networks
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Computer and Information Science
Identifiers
URN: urn:nbn:se:mdh:diva-27930DOI: 10.1109/ETFA.2014.7005310ISI: 000360999100261Scopus ID: 2-s2.0-84946693621ISBN: 9781479948468 (print)OAI: oai:DiVA.org:mdh-27930DiVA: diva2:809170
Conference
19th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2014, 16 September 2014 through 19 September 2014
Available from: 2015-04-30 Created: 2015-04-30 Last updated: 2016-04-05Bibliographically approved
In thesis
1. Securing Clock Synchronization in Industrial Heterogeneous Networks
Open this publication in new window or tab >>Securing Clock Synchronization in Industrial Heterogeneous Networks
2016 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Today, wireless solutions for industrial networks are becoming more and more appealing since they increase flexibility and enable the use of additional wireless sensors, but also bring such advantages as mobility and weight reduction. Wired networks, on the other hand, are reliable and, more importantly, already existing in most distributed control loops. Heterogeneous networks consisting of wireless as well as wired sub-networks are gaining attention as such networks combine the advantages of both approaches. However, wireless communication links are more vulnerable to security breaches because of their broadcast nature. For this reason, industrial heterogeneous networks require a new type of security solutions, since they have different system assets and security objectives. This thesis aims to secure industrial heterogeneous networks. Such networks have real-time requirements due to interaction with some physical process, and thus have a schedule with one or more deadlines for data delivery in order to comply with the timing requirements of the application. The necessity to follow the schedule implies that all network participants should share the same notion of time and be synchronized. This fact makes clock synchronization a fundamental asset for industrial networks. The first step towards developing a security framework for industrial heterogeneous networks with real-time requirements is therefore to investigate ways of breaching clock synchronization. Once the vulnerabilities of this asset have been identified, the next step is to propose solutions to detect malicious attacks and mitigate their influence. The thesis provides a vulnerability analysis of the asset synchronization based on the widely deployed IEEE 1588 standard, and identifies a possibility to break clock synchronization through a combination of a man-in-the-middle attack and a delay attack. This attack is appealing to an adversary as it can target any network requiring synchronization. Next, several mitigation techniques, such as a relaxed synchronization condition mode, delay bounding and using knowledge of existing environmental conditions, are identified, making the network more resilient against these kinds of attacks. Finally, a network monitor aiming to detect anomalies introduced by the adversary performing attacks targeting clock synchronization is proposed as a mean to detect the delay attack. 

Place, publisher, year, edition, pages
Västerås: Mälardalen University, 2016
Series
Mälardalen University Press Licentiate Theses, ISSN 1651-9256 ; 232
National Category
Computer Science
Research subject
Computer Science
Identifiers
urn:nbn:se:mdh:diva-31376 (URN)978-91-7485-258-5 (ISBN)
Presentation
2016-05-18, Kappa, Mälardalens högskola, Västerås, 13:15 (English)
Opponent
Supervisors
Available from: 2016-04-05 Created: 2016-04-04 Last updated: 2016-04-15Bibliographically approved

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Lisova, ElenaÅkerberg, JohanBjörkman, Mats

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