An efficient semi-quantum private comparison without pre-shared keys

被引：16
作者：
Tian, Yuan [1 ,2 ]
Li, Jian [2 ]
Chen, Xiu-Bo [1 ]
Ye, Chong-Qiang [2 ]
Li, Chao-Yang [3 ]
Hou, Yan-Yan [2 ]
机构：
[1] Beijing Univ Post & Telecommun, Informat Secur Ctr, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
[2] Beijing Univ Post & Telecommun, Sch Artificial Intelligence, Beijing 100876, Peoples R China
[3] Zhengzhou Univ Light Ind, Coll Software Engn, Zhengzhou 450001, Peoples R China
来源：
QUANTUM INFORMATION PROCESSING | 2021年 / 20卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Quantum cryptography; Semi-quantum private comparison; Entangled states; Semi-honest third party; Without pre-shared key; COMMUNICATION; PROTOCOL;
D O I：
10.1007/s11128-021-03294-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Semi-quantum private comparison protocol permits two classical participants to compare the equality of their private information with the help of a semi-honest third party without disclosing privacy. An innovative semi-quantum private comparison protocol based on maximally entangled Greenberger-Horne-Zeilinger-type states has been discussed. The proposed protocol is efficient and without the pre-shared keys. Next, the security analysis guarantees the presented protocol is asymptotically secure against the outsider and the insider attacks. Moreover, the qubit efficiency of the presented protocol is 3.125%. The efficiency comparison shows that it improves the efficiency by 125% for the literature without pre-shared keys.
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页数：13
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