Remote inspection of adversary-controlled environments

Johannes Tobisch (), Sébastien Philippe (), Boaz Barak, Gal Kaplun, Christian Zenger, Alexander Glaser, Christof Paar and Ulrich Rührmair ()
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Johannes Tobisch: Max Planck Institute for Security and Privacy
Sébastien Philippe: Princeton University
Boaz Barak: Harvard University
Gal Kaplun: Harvard University
Christian Zenger: PHYSEC GmbH
Alexander Glaser: Princeton University
Christof Paar: Max Planck Institute for Security and Privacy
Ulrich Rührmair: TU Berlin

Nature Communications, 2023, vol. 14, issue 1, 1-6

Abstract: Abstract Remotely monitoring the location and enduring presence of valuable items in adversary-controlled environments presents significant challenges. In this article, we demonstrate a monitoring approach that leverages the gigahertz radio-wave scattering and absorption of a room and its contents, including a set of mirrors with random orientations placed inside, to remotely verify the absence of any disturbance over time. Our technique extends to large physical systems the application of physical unclonable functions for integrity protection. Its main applications are scenarios where parties are mutually distrustful and have privacy and security constraints. Examples range from the verification of nuclear arms-control treaties to the securing of currency, artwork, or data centers.

Date: 2023
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DOI: 10.1038/s41467-023-42314-2

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