Aman, Muhammad NaveedChaudhry, Shehzad AshrafAl-Turjman, Fadi2024-09-112024-09-112021978-303069430-21867-8211https://doi.org/10.1007/978-3-030-69431-9_7https://hdl.handle.net/11363/84001st EAI International Conference on Forthcoming Networks and Sustainability in the IoT Era, FoNeS 2020 -- 1 October 2020 through 2 October 2020 -- Virtual, Online -- 256179The exponential growth in the number of Internet of Things (IoT) devices, the sensitive nature of data they produce, and the simple nature of these devices makes IoT systems vulnerable to a wide range cyber-threats. Physical attacks are one of the major concerns for IoT device security. Security solutions for the IoT have to be accurate and quick since many real time applications depend on the data generated by these devices. In this article, we undertake the IoT authentication problem by proposing a fast protocol RapidAuth, which also restricts physical attacks. The proposed protocol uses Physical Unclonable Functions to achieve the security goals and requires the exchange of only two messages between the server and an IoT device. The analysis of RapidAuth proves its’ robustness against various types of attacks as well as its’ efficiency in terms of computation, communication, memory overheads and energy consumption. © 2021, ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering.eninfo:eu-repo/semantics/closedAccessAuthentication; IoT security; ProVerif; PUFConference Object353829510.1007/978-3-030-69431-9_72-s2.0-85103452632Q4