TY - CONF AU - Elezov, M. S. AU - Ozhegov, R. V. AU - Goltsman, G. N. AU - Makarov, V. PY - 2017 DA - 2017// TI - Development of the experimental setup for investigation of latching of superconducting single-photon detector caused by blinding attack on the quantum key distribution system T2 - EPJ Web of Conferences BT - EPJ Web of Conferences SP - 2 VL - 132 IS - 2 AB - Recently bright-light control of the SSPD has been demonstrated. This attack employed a “backdoor” in the detector biasing scheme. Under bright-light illumination, SSPD becomes resistive and remains “latched” in the resistive state even when the light is switched off. While the SSPD is latched, Eve can simulate SSPD single-photon response by sending strong light pulses, thus deceiving Bob. We developed the experimental setup for investigation of a dependence on latching threshold of SSPD on optical pulse length and peak power. By knowing latching threshold it is possible to understand essential requirements for development countermeasures against blinding attack on quantum key distribution system with SSPDs. UR - https://doi.org/10.1051/epjconf/201713201004 DO - 10.1051/epjconf/201713201004 N1 - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1116), last updated on Thu, 15 Jul 2021 00:56:09 -0500 ID - Elezov_etal2017 ER -