Quantum Hacking Against Discrete-Modulated Continuous-Variable Quantum Key Distribution Using Modified Local Oscillator Intensity Attack with Random Fluctuations
Lu Fan, Yiming Bian, Mingze Wu +2 more
Know your enemy: In practical inline systems for continuous-variable quantum key distribution, the local oscillator (LO) is particularly vulnerable to being controlled by hackers. The authors propose a modified LO intensity attack with random fluctuations, which has the advantage of evading the commonly used monitoring technologies. Moreover, similar quantum hacking could also target the pilot intensity in a LO system, which indicates the strong adaptability and practicability of the proposed attack. This work could be of great significance to the practical security of continuous-variable quantum key distribution.
arXiv:2308.00557•Physical Review Applied•Aug 29, 2023•18 citations