中国物理B ›› 2011, Vol. 20 ›› Issue (4): 40306-040306.doi: 10.1088/1674-1056/20/4/040306

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Efficient quantum secret sharing scheme with two-particle entangled states

朱珍超1, 付安民1, 张玉清2   

  1. (1)Key Lab of Computer Networks and Information Security of Ministry of Education, Xidian University, Xi'an 710071, China;National Computer Network Intrusion Protection Center, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China; (2)National Computer Network Intrusion Protection Center, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2010-07-01 修回日期:2010-11-30 出版日期:2011-04-15 发布日期:2011-04-15
  • 基金资助:
    Project supported by the Key Program of the National Natural Science Foundation of China (Grant No. 90718007) and the National Natural Science Foundation of China (Grant Nos. 60773135 and 60970140).

Efficient quantum secret sharing scheme with two-particle entangled states

Zhu Zhen-Chao(朱珍超)a)b),Zhang Yu-Qing(张玉清)b),and Fu An-Min(付安民)a)b)   

  1. a Key Lab of Computer Networks and Information Security of Ministry of Education, Xidian University, Xi'an 710071, ChinaNational Computer Network Intrusion Protection Center, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-07-01 Revised:2010-11-30 Online:2011-04-15 Published:2011-04-15
  • Supported by:
    Project supported by the Key Program of the National Natural Science Foundation of China (Grant No. 90718007) and the National Natural Science Foundation of China (Grant Nos. 60773135 and 60970140).

摘要: This paper proposes a protocol for multi-party quantum secret sharing utilizing four non-orthogonal two-particle entangled states following some ideas in the schemes proposed by Liu et al. (2006 Chin. Phys. Lett. 23 3148) and Zhang et al. (2009 Chin. Phys. B 18 2149) respectively. The theoretical efficiency for qubits of the new protocol is improved from 50% to approaching 100%. All the entangled states can be used for generating the private key except those used for the eavesdropping check. The validity of a probable attack called opaque cheat attack to this kind of protocols is considered in the paper for the first time.

关键词: quantum secret sharing, quantum entanglement, Bell state nonorthogonal base

Abstract: This paper proposes a protocol for multi-party quantum secret sharing utilizing four non-orthogonal two-particle entangled states following some ideas in the schemes proposed by Liu et al. (2006 Chin. Phys. Lett. 23 3148) and Zhang et al. (2009 Chin. Phys. B 18 2149) respectively. The theoretical efficiency for qubits of the new protocol is improved from 50% to approaching 100%. All the entangled states can be used for generating the private key except those used for the eavesdropping check. The validity of a probable attack called opaque cheat attack to this kind of protocols is considered in the paper for the first time.

Key words: quantum secret sharing, quantum entanglement, Bell state nonorthogonal base

中图分类号:  (Quantum cryptography and communication security)

  • 03.67.Dd
03.67.Hk (Quantum communication) 03.65.Ud (Entanglement and quantum nonlocality)