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Kvantovaya Elektronika, 2020, Volume 50, Number 5, Pages 426–439 (Mi qe17252)  

This article is cited in 2 scientific papers (total in 2 papers)

Trends in the developments quantum communications

On the operational meaning and practical aspects of using the security parameter in quantum key distribution

A. S. Trushechkinabc

a Steklov Mathematical Institute of Russian Academy of Sciences, Moscow
b Russian Quantum Center, Moscow, Skolkovo
c National University of Science and Technology «MISIS», Moscow

Abstract: We discuss the operational meaning of a commonly accepted security parameter in quantum key distribution, which is based on the trace distance. We separately consider the cases of using a key in a one-time pad and in a computationally secure cipher. Some practical aspects of using the security parameter are also elucidated, which are usually not paid enough attention in theoretical studies and which therefore may cause difficulties for experimentalists and engineers. It is shown that a one-time pad requires not only a higher key generation rate than computationally secure ciphers, but also a significantly stronger condition on the key security parameter.

Keywords: quantum cryptography, quantum key distributions, security parameter, trace distance.

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English version:
Quantum Electronics, 2020, 50:5, 426–439

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Received: 17.02.2020

Citation: A. S. Trushechkin, “On the operational meaning and practical aspects of using the security parameter in quantum key distribution”, Kvantovaya Elektronika, 50:5 (2020), 426–439 [Quantum Electron., 50:5 (2020), 426–439]

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  • http://mi.mathnet.ru/eng/qe17252
  • http://mi.mathnet.ru/eng/qe/v50/i5/p426

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    This publication is cited in the following articles:
    1. A. S. Trushechkin, E. O. Kiktenko, D. A. Kronberg, A. K. Fedorov, Phys. Usp., 64:1 (2021), 88–102  mathnet  crossref  crossref  isi  elib
    2. Quantum Electron., 51:10 (2021), 928–937  mathnet  crossref  isi
  • Квантовая электроника Quantum Electronics
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