3 papers
quant-ph2026
Countermeasure against detector-blinding attack with estimation of secret-key leakage
Dmitry M. Melkonian, Daniil S. Bulavkin, Kirill E. Bugai +2
We present a countermeasure against the detector blinding attack (DBA) utilizing statistical analysis of error and double-click events accumulated during a quantum key distribution…
quant-ph2025
Realistic vulnerabilities of decoy-state quantum key distribution
I. S. Sushchev, K. E. Bugai, S. N. Molotkov +6
We analyze realistic vulnerabilities of decoy-state quantum key distribution (QKD) arising from the combination of laser damage attack (LDA) and unambiguous state discrimination (U…
quant-ph2025
Broadband optical time-domain reflectometry for security analysis of quantum key distribution
Klim D. Bondar, Ivan S. Sushchev, Daniil D. Bulavkin +5
In this paper, we present a method for security analysis against the Trojan-horse attacks (THA) launched to a practical fiber-based quantum key distribution (QKD) system across a w…