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判断集合包含关系的安全计算协议
  • 期刊名称:计算机学报,已录用
  • 时间:0
  • 分类:O413.1[理学—理论物理;理学—物理] TN929.1[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构:[1]Key Lab of Computer Networks and Information Security of Ministry of Education Xidian University, Xi'an 710071, China, [2]National Computer Network Intrusion Protection Center, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
  • 相关基金: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).
  • 相关项目:网络可生存性研究
中文摘要:

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.

英文摘要:

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.

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