Open AccessАнализ эффективности методов защиты от атак активного оптического зондирования на волоконные системы квантового распределения ключей в спектральном диапазоне 1260-1650 nm
Author(s) -
А. В. Борисова,
Б.Д. Гармаев,
И.Б. Бобров,
С.С. Негодяев,
И.В. Синильщиков
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2020.11.50182.4-20
Subject(s) - quantum key distribution , trojan horse , circulator , isolation (microbiology) , computer science , wavelength division multiplexing , electronic engineering , multiplexing , component (thermodynamics) , isolator , engineering , optics , physics , computer security , wavelength , microbiology and biotechnology , biology , thermodynamics , photon
In this paper, the results of research of spectral features of several passive fiber optic components are presented. There are spectra of isolators, circulators, spectral filters, and WDM, that are used in quantum key distribution (QKD) systems, and contribute to the protection of these systems against active optical probing attacks. We also provide an estimate of the degree of isolation required to protect the QKD system from Trojan-horse attacks. Based on the isolation requirements and measurement data we analyzed the efficiency of the QKD system protection through the use passive isolating components. As an example, we have shown the achievement of the required isolation level (150 dB) in the considered spectral range in the system presented in the article.