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Faculty of Electrical Engineering and Computer Science, VSB – Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic

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1 Papers

Measurements of Cross-Border Quantum Key Distribution Link

Topics: Cryptographic Algorithms; Trusted Computing

Authors: Filip Lauterbach ¹ , Libor Michalek ¹ , Piotr Rydlichowski ² , Patrik Burdiak ¹ , Jaroslav Zdralek ¹ and Miroslav Voznak ¹

Affiliations: ¹ Faculty of Electrical Engineering and Computer Science, VSB – Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic , ² Institute of Bioorganic Chemistry, Polish Academy of Sciences Poznan Supercomputing and Networking Center, Poznan, Wielkopolska, Poland

Digital Object Identifier: 10.5220/0011647200003405

Proceedings of ICISSP 2023, ISBN: 978-989-758-624-8

Quick Abstract

The paper presents measurements of a Quantum Key Distribution system operating on a cross-border QKD link between Ostrava (CZ) and Cieszyn (PL). The system is part of the Horizon OpenQKD project. The study attempted to determine the maximum attenuation where the QKD system was still functional and also any correlation between the crucial parameters of the quantum bit error rate (QBER), secret key rate (SKR) and link attenuation (dB). Providing a statistical analysis of the measured data, the paper expands our understanding of the behaviour of the QKD link as it approaches its technological limits.