In a recent article[Gao et al.,Sci.China-Phys.Mech.Astron.63,120311(2020)],a two-receiver measurement-deviceindependent quantum secret sharing(MDI-QSS)protocol was presented.It was proven to be secure against eavesdro...In a recent article[Gao et al.,Sci.China-Phys.Mech.Astron.63,120311(2020)],a two-receiver measurement-deviceindependent 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.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.62071015)the Beijing Municipal Science&Technology Commission(Grant No.Z191100007119004)the Guangxi Key Laboratory of Cryptography and Information Security(Grant No.GCIS201810)。
文摘In a recent article[Gao et al.,Sci.China-Phys.Mech.Astron.63,120311(2020)],a two-receiver measurement-deviceindependent 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.
