Fake-signal-and-cheating attack on quantum secret sharing

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dc.creatorDeng, Fu-Guo
dc.creatorLi, Xi-Han
dc.creatorChen, Pan
dc.creatorLi, Chun-Yan
dc.creatorZhou, Hong-Yu
dc.date2006-04-10
dc.date.accessioned2026-07-07T07:11:50Z
dc.date.available2026-07-07T07:11:50Z
dc.descriptionWe present a fake-signal-and-cheating attack strategy for the dishonest agent in quantum secret sharing (QSS) to steal the information of the other agents' fully and freely. It is found that almost all the QSS protocols existing, such as the two famous QSS protocols, the Hillery-Bu$\check{z}$ek-Berthiaume [Phys. Rev. A \textbf{59}, 1829 (1999)] and the Karlsson-Koashi-Imoto [Phys. Rev. A \textbf{59}, 162 (1999)], can be eavesdropped freely if the process for the eavesdropping check is accomplished with the cooperation of the dishonest agent. He can sends a fake signal to the other agents after intercepting the original photons and storing them. His action can be hidden with entanglement swapping and cheating when the photons are chosen as the samples for checking eavesdropping. Finally, we present a possible improvement of these QSS protocols' security with decoy photons.
dc.description5 page, no figure
dc.identifierhttps://arxiv.org/abs/quant-ph/0604060
dc.identifierhttp://arxiv.org/abs/quant-ph/0604060
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/111906
dc.subjectQuantum Physics
dc.titleFake-signal-and-cheating attack on quantum secret sharing
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