National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11004050]; Human Provincial Education Department of China [09A013, 10B013]; Science and Technology Research Foundation of Hunan Province of China [2010FJ4120]; Hengyang Normal University of China [2010YCJH01]; Science Foundation of Hengyang Normal University of China [10B69]
机构署名：
本校为第一且通讯机构
院系归属：
物理与电子工程学院
摘要：
We study the security of multiparty quantum secret sharing (QSS) with multiqubit Greenberger-Horne-Zeilinger states. We give a detailed proof that the original scheme of Xiao et al. [Phys. Rev. A 69 (2004) 052307] is insecure against the interior attack (i.e. the participants' attack) which is the most serious threat for QSS protocols. Thereafter, an impro...
