Lianjun Jiang, Dongdong Li, Yuqiang Fang, Meisheng Zhao, Ming Liu, Zhilin Xie, Yukang Zhao, Yanlin Tang, Wei Jiang, Houlin Fang, Rui Ma, Lei Cheng, Weifeng Yang, Songtao Han, Shibiao Tang. Countermeasure against blinding attack for single-photon detectors in quantum key distribution[J]. Journal of Semiconductors, 2024, 45(4): 042702
- Journal of Semiconductors
- Vol. 45, Issue 4, 042702 (2024)
Fig. 1. Schematic of the countermeasure against blinding attack for single-photon detectors.
Fig. 2. (Color online) Test environment for the countermeasure against blinding attack.
Fig. 3. (Color online) Test for continuous-wave bright light injection.
Fig. 4. (Color online) Detector response to pulsed blinding attack at different time of the gate. Each curve corresponds to a specific optical pulse intensity ranging from 100 to 105 (in the unit of photons/pulse).
Fig. 5. (Color online) Detector response to different pulse width of blinding attack. (a) Attack using pulse of 1-ns-width. (b) Attack using pulse of 10-ns-width. (c) In-gate attack using pulse of 50-ps-width. (d) Out-of-gate attack using pulse of 50-ps-width.
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