期刊
PHYSICS LETTERS A
卷 373, 期 1, 页码 65-68出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2008.11.004
关键词
Quantum secret sharing; Bell state; Quantum teleportation
资金
- National High Technology Research and Development Program of China [2006AA01Z419]
- National Natural Science Foundation of China [906040230, 60873191, 60821001]
- National Laboratory for Modern Communications Science Foundation of China [9140C1101010601]
- Natural Science Foundation of Beijing [4072020]
- Natural Science Foundation of Education Bureau of Henan Province [2007120007, 2008B120005]
- Youth Foundation of Luoyang Normal University [2008-QNJJ-012]
A scheme of multiparty quantum secret sharing of classical messages (QSSCM) [Z.J. Zhang et al., Opt. Commun. 269 (2007) 418] was proposed. Lin et al. [S. Lin et al., Opt. Commun. 281 (2008) 4553] showed the last agent can obtain half of the secret in Z.J. Zhang's et al. three-party QSSCM scheme and gave an improved version. We further show the first agent and the last agent can obtain all the secret without introducing any error in Zhang's et al. multiparty QSSCM scheme by a special attack with quantum teleportation. We also present an improved version. (C) 2008 Elsevier B.V. All rights reserved.
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