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Physical Unclonable Functions in the Internet of Things: State of the Art and Open Challenges

Embedded Systems Group, Faculty of Engineering, University of Duisburg-Essen, 47048 Duisburg, Germany
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Sensors 2019, 19(14), 3208; https://doi.org/10.3390/s19143208
Received: 29 April 2019 / Revised: 17 June 2019 / Accepted: 21 June 2019 / Published: 21 July 2019
(This article belongs to the Special Issue Context-Awareness in the Internet of Things)
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Abstract

Attacks on Internet of Things (IoT) devices are on the rise. Physical Unclonable Functions (PUFs) are proposed as a robust and lightweight solution to secure IoT devices. The main advantage of a PUF compared to the current classical cryptographic solutions is its compatibility with IoT devices with limited computational resources. In this paper, we investigate the maturity of this technology and the challenges toward PUF utilization in IoT that still need to be addressed. View Full-Text
Keywords: PUF; IoT; FPGA; security; hardware security PUF; IoT; FPGA; security; hardware security
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Babaei, A.; Schiele, G. Physical Unclonable Functions in the Internet of Things: State of the Art and Open Challenges. Sensors 2019, 19, 3208.

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