Two-Point Attack on the Two Nonorthogonal State QKD Protocol over a Fiber-Optic Channel

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dc.creatorYang, Li
dc.creatorWu, Ling-An
dc.date2003-10-12
dc.date2003-10-23
dc.date.accessioned2026-07-07T06:08:04Z
dc.date.available2026-07-07T06:08:04Z
dc.descriptionWe suggest here a two-point eavesdropping strategy to two nonorthogonal states protocol of quantum key distribution over a fiber-optic channel. Suppose that the single-photon sources and detectors of Alice, Bob and Eves are ideal ones, the two-point attack can break the two nonorthogonal states protocol if the distance between Alice and Bob is sufficiently long. For single-photon type B92 protocol, the upper bound of distance is about 30 kilometers. It is interesting that Bennett's original multi-photon protocol is secure against both two-point attack and beam splitting attack, even if the protocol is realized with weak pulse source.
dc.identifierhttps://arxiv.org/abs/quant-ph/0310080
dc.identifierhttp://arxiv.org/abs/quant-ph/0310080
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91508
dc.subjectQuantum Physics
dc.titleTwo-Point Attack on the Two Nonorthogonal State QKD Protocol over a Fiber-Optic Channel
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