Participant attack on the deterministic measurement-device-independent quantum secret sharing protocol,Science China Physics, Mechanics & Astronomy

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Participant attack on the deterministic measurement-device-independent quantum secret sharing protocol
Science China Physics, Mechanics & Astronomy ( IF 6.4 ) Pub Date : 2021-04-27 , DOI: 10.1007/s11433-021-1692-5
Yu-Guang Yang , Yue-Chao Wang , Yong-Li Yang , Xiu-Bo Chen , Dan Li , Yi-Hua Zhou , Wei-Min Shi

In a recent article [Gao et al., Sci. China-Phys. Mech. Astron. 63, 120311 (2020)], a two-receiver measurement-device-independent quantum secret sharing (MDI-QSS) protocol was presented. It was proven to be secure against eavesdropping and generalized to the multireceiver case. However, the participant attack is a fatal threat to QSS protocols. Here, we highlight that a dishonest participant can obtain a sender’s secret message alone without introducing any detectable error, evidencing the vulnerability of the MDI-QSS protocol to the participant attack.

更新日期：2021-05-22

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