Fiber-optic elements spectroscopy against Trojan-horse attack in 1500 - 2000 nm range

In this work, we measured transmission spectra of fiber-optic elements, which are used as countermeasures against quantum hacking in the 1500 - 2000 nm range. We found that investigated fiber-optic elements transmit light in 1800 - 2000 nm which opens possibilities for realization of trojan-horse at...

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Bibliographic Details
Main Authors: Nasedkin, B.A., Tolochko, D.A., Filipov, I.M., Chistiakov, V.V., Ismagilov, A.O., Kiselev, F. D., Tcypkin, A. N., Egorov, V.I.
Format: Conference Proceeding
Language:English
Subjects:
Computer crime
Isolators
Optical fiber filters
Optics
quantum hacking
Quantum key distribution
Spectroscopy
Trojan-horse attack
Wavelength division multiplexing
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Summary:In this work, we measured transmission spectra of fiber-optic elements, which are used as countermeasures against quantum hacking in the 1500 - 2000 nm range. We found that investigated fiber-optic elements transmit light in 1800 - 2000 nm which opens possibilities for realization of trojan-horse attack on quantum key distribution systems at this range. To solve that problem, we suggest a simple way to decrease transmission in long-wavelength range.
ISSN:2642-5580
DOI:10.1109/ICLO54117.2022.9839700