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Open AccessArticle

Aircraft Mode S Transponder Fingerprinting for Intrusion Detection

Department of Electronic Engineering, University of Rome Tor Vergata, Via del politecnico 1, 00133 Rome, Italy
Author to whom correspondence should be addressed.
Aerospace 2020, 7(3), 30;
Received: 21 January 2020 / Revised: 28 February 2020 / Accepted: 13 March 2020 / Published: 18 March 2020
(This article belongs to the Special Issue Machine Learning Applications in Aviation Safety)
Nowadays, aircraft safety is based on different systems and four of them share the same data-link protocol: Secondary Surveillance Radar, Automatic Dependent Surveillance System, Traffic Collision Avoidance System, and Traffic Information System use the Mode S protocol to send and receive information. This protocol does not provide any kind of authentication, making some of these applications vulnerable to cyberattacks. In this paper, an intrusion detection mechanism based on transmitter Radio Frequency (RF) fingerprinting is proposed to distinguish between legitimate messages and fake ones. The proposed transmitter signature is described and an intrusion detection algorithm is developed and evaluated in case of different intrusion configurations, also with the use of real recorded data. The results show that it is possible to detect the presence of fake messages with a high probability of detection and very low probability of false alarm. View Full-Text
Keywords: SSR; radar; ADS-B; fingerprinting; ATC; safety; security; intrusion detection SSR; radar; ADS-B; fingerprinting; ATC; safety; security; intrusion detection
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MDPI and ACS Style

Leonardi, M.; Gerardi, F. Aircraft Mode S Transponder Fingerprinting for Intrusion Detection. Aerospace 2020, 7, 30.

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