Receiver-device-independent quantum key distribution

Marie Ioannou; Maria Ana Pereira; Davide Rusca; Fadri Grünenfelder; Alberto Boaron; Matthieu Perrenoud; Alastair A. Abbott; Pavel Sekatski; Jean-Daniel Bancal; Nicolas Maring; Hugo Zbinden; Nicolas Brunner

doi:10.1117/12.2621121

31 May 2022 Receiver-device-independent quantum key distribution

Marie Ioannou, Maria Ana Pereira, Davide Rusca, Fadri Grünenfelder, Alberto Boaron, Matthieu Perrenoud, Alastair A. Abbott, Pavel Sekatski, Jean-Daniel Bancal, Nicolas Maring, Hugo Zbinden, Nicolas Brunner

Author Affiliations +

Proceedings Volume 12133, Quantum Technologies 2022; 1213306 (2022) https://doi.org/10.1117/12.2621121
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

We study a class of receiver-device-independent quantum key distribution protocols based on a prepare-and-measure setup which aims to simplify their implementation. The security of the presented protocols relies on the assumption that the sender, Alice, prepares states that have limited inner-products. Hence, Alice’s device is partially characterized. There is no explicit bound on the Hilbert space dimension required. The receiver’s, Bob’s, device demands no characterization and can be represented as a black-box. The protocols are therefore immune to attacks on Bob’s device, such as blinding attacks. The users can generate a secret key while monitoring the correct functioning of their devices through observed statistics. We report a proof-of-principle demonstration, involving mostly off-the-shelf equipment, as well as a high-efficiency superconducting nanowire detector. A positive key rate is demonstrated over a 4.8 km low-loss optical fiber with finite-key analysis.

Conference Presentation

Citation Download Citation

Marie Ioannou, Maria Ana Pereira, Davide Rusca, Fadri Grünenfelder, Alberto Boaron, Matthieu Perrenoud, Alastair A. Abbott, Pavel Sekatski, Jean-Daniel Bancal, Nicolas Maring, Hugo Zbinden, and Nicolas Brunner "Receiver-device-independent quantum key distribution", Proc. SPIE 12133, Quantum Technologies 2022, 1213306 (31 May 2022); https://doi.org/10.1117/12.2621121

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