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Q: Fachverband Quantenoptik und Photonik

Q 28: Quantum Information: Quantum Communication 1

Q 28.1: Vortrag

Mittwoch, 16. März 2011, 10:30–10:45, SCH A01

Faked-state attacks on commercial quantum key distribution — •Nitin Jain^1,2, Lars Lydersen^3,4, Christoffer Wittmann^1,2, Carlos Wiechers⁵, Dominique Elser^1,2, Christoph Marquardt^1,2, Vadim Makarov^3,4, Johannes Skaar^3,4, and Gerd Leuchs^1,2 — ¹Max Planck Institute for the Science of Light, Guenther-Scharowsky-Str. 1, Bau 24, 91058, Erlangen, Germany — ²Institut fuer Optik, Information und Photonik, University of Erlangen-Nuremberg, Staudtstraße 7/B2, 91058, Erlangen, Germany — ³Department of Electronics and Telecommunications, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway — ⁴University Graduate Center, NO-2027 Kjeller, Norway — ⁵Departamento de Fisica, Campus Leon, Universidad de Guanajuato, Lomas del Bosque 103, Fracc. Lomas del Campestre, 37150, Leon, Gto, Mexico

We experimentally review an off-the-shelf commercial quantum key distribution system (QKD) from ID Quantique to identify loopholes and exploit vulnerabilities by simulating and performing attacks on it. In particular, we devise faked-state attacks against the avalanche photo diode (APD) based detectors of this QKD system. We have shown several successful proof-of-principle attacks through experiments and simulations.