Cryptanalysis and improvement of dynamic quantum secret sharing protocol based on two-particle transform of Bell states

被引：12
作者：
Gao, Gan [1 ,4 ]
Wei, Chang-Cheng [2 ]
Wang, Dong [3 ]
机构：
[1] Tongling Univ, Dept Elect Engn, Tongling 244000, Peoples R China
[2] Tongling Univ, Dept Math & Comp Sci, Tongling 244000, Peoples R China
[3] Anhui Univ, Sch Phys & Mat Sci, Hefei 230601, Anhui, Peoples R China
[4] Tongling Univ, Engn Technol Res Ctr Optoelect Technol Appliance, Tongling 244000, Peoples R China
来源：
QUANTUM INFORMATION PROCESSING | 2019年 / 18卷 / 06期
关键词：
Security loophole; Entanglement swapping; Bell state comparison; Quantum secret sharing; SECURE DIRECT COMMUNICATION; KEY DISTRIBUTION; SCHEME;
D O I：
10.1007/s11128-019-2301-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Recently, Du and Bao proposed a quantum secret sharing protocol based on two-particle transform of Bell states. We study the security of the proposed protocol and find that it is not secure, that is, the two dishonest agents, Bob and Zach, can collude to obtain Alice's secret messages without the help of the other agents. Finally, we give a possible improvement of the proposed protocol.
引用
收藏
页数：9
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