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J. Sens. Actuator Netw. 2018, 7(1), 12;

Internal Interface Diversification as a Security Measure in Sensor Networks

Department of Future Technologies, University of Turku, 20140 Turku, Finland
Author to whom correspondence should be addressed.
This paper is an extended version of Koivunen, L.; Rauti, S.; Leppänen, V. Applying Internal Interface Diversification to IoT Operating Systems. In Proceedings of the 2016 International Conference on Software Security and Assurance (ICSSA), St. Polten, Austria, 24–25 August 2016; pp. 1–5; Mäki, P.; Rauti, S.; Hosseinzadeh, S.; Koivunen, L.; Leppänen, V. Interface Diversification in IoT Operating Systems. In Proceedings of the 2016 IEEE/ACM 9th International Conference on Utility and Cloud Computing (UCC), Shanghai, China, 6–9 December 2016; pp. 304–309.
Received: 15 December 2017 / Revised: 21 February 2018 / Accepted: 2 March 2018 / Published: 6 March 2018
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More actuator and sensor devices are connected to the Internet of Things (IoT) every day, and the network keeps growing, while software security of the devices is often incomplete. Sensor networks and the IoT in general currently cover a large number of devices with an identical internal interface structure. By diversifying the internal interfaces, the interfaces on each node of the network are made unique, and it is possible to break the software monoculture of easily exploitable identical systems. This paper proposes internal interface diversification as a security measure for sensor networks. We conduct a study on diversifiable internal interfaces in 20 IoT operating systems. We also present two proof-of-concept implementations and perform experiments to gauge the feasibility in the IoT environment. Internal interface diversification has practical limitations, and not all IoT operating systems have that many diversifiable interfaces. However, because of low resource requirements, compatibility with other security measures and wide applicability to several interfaces, we believe internal interface diversification is a promising and effective approach for securing nodes in sensor networks. View Full-Text
Keywords: interface diversification; security; software; Internet of Things interface diversification; security; software; Internet of Things

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Rauti, S.; Koivunen, L.; Mäki, P.; Hosseinzadeh, S.; Laurén, S.; Holvitie, J.; Leppänen, V. Internal Interface Diversification as a Security Measure in Sensor Networks. J. Sens. Actuator Netw. 2018, 7, 12.

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