Practical local oscillator intensity attack with random fluctuation against CV-QKD system

Lu Fan; Yiming Bian; Mingze Wu; Yan Wang; Yichen Zhang; Song Yu

Optica Quantum 2.0 Conference and Exhibition
Technical Digest Series (Optica Publishing Group, 2023),
paper QTu3A.35

Practical local oscillator intensity attack with random fluctuation against CV-QKD system

Lu Fan, Yiming Bian, Mingze Wu, Yan Wang, Yichen Zhang, and Song Yu

Quantum 2.0 2023

Denver, Colorado United States
18–22 June 2023
ISBN: 978-1-957171-27-2

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Poster Session I (QTu3A)

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L. Fan, Y. Bian, M. Wu, Y. Wang, Y. Zhang, and S. Yu, "Practical local oscillator intensity attack with random fluctuation against CV-QKD system," in Optica Quantum 2.0 Conference and Exhibition, Technical Digest Series (Optica Publishing Group, 2023), paper QTu3A.35.

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Abstract

We report the practical local oscillator intensity attack with random fluctuation against discrete-modulated continuous-variable quantum key distribution system, where communicating parties couldn’t accurately estimate channel parameters, resulting in the overestimation of the secret key rate.

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