Matthias Schäfer

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This work studies the security of next generation air traffic surveillance technology based on Automatic Dependent Surveillance – Broadcast (ADS-B). ADS-B is already supported by a majority of international aircraft and will become mandatory in 2020 for most airspaces worldwide. While it is known that ADS-B might be susceptible to different spoofing(More)
Automatic Dependent Surveillance-Broadcast (ADS-B) is one of the key components of the next generation air transportation system. Since ADS-B will become mandatory by 2020 for most airspaces, it is important that aspects such as capacity, applications, and security are investigated by an independent research community. However, large-scale real-world data(More)
—We propose a new approach for securely verifying sequences of location claims from mobile nodes. The key idea is to exploit the inherent mobility of the nodes in order to constrain the degree of freedom of an attacker when spoofing consecutive location updates along a claimed track. We show that in the absence of noise, our approach is able to securely(More)
—More than a dozen wireless technologies are used by air traffic communication systems during different flight phases. From a conceptual perspective, all of them are insecure as security was never part of their design. Recent contributions from academic and hacking communities have exploited this inherent vulnerability to demonstrate attacks on some of(More)
Future transportation systems highly rely on the integrity of spatial information provided by their means of transportation such as vehicles and planes. In critical applications (e.g. collision avoidance), tampering with this data can result in life-threatening situations. It is therefore essential for the safety of these systems to securely verify this(More)
This poster presents the idea of exploiting mobility to improve the security in location and track verification. Unlike traditional approaches which require tight time synchronization or two-way communication, mobility can be used to derive lightweight verification schemes. By ensuring independent movement of the verifiers, our scheme can provide security(More)
The future of air traffic control (ATC) will heavily depend on the Automatic Dependent Surveillance-Broadcast (ADS-B) protocol as a crucial component. ADS-B marks a paradigm change in airspace monitoring as global ATC is switching from an independent, radar-based approach to dependent, satellite-supported surveillance. With ADS-B, aircraft broadcast their(More)
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