Quantum Private Comparison Protocol Based on Four-Particle GHZ States

被引：19
|
作者：
Xu, Qiang-Da [1 ]
Chen, Hua-Ying [2 ]
Gong, Li-Hua [3 ]
Zhou, Nan-Run [3 ]
机构：
[1] Nanchang Univ, Dept Comp Sci & Technol, Nanchang 330031, Jiangxi, Peoples R China
[2] Nanchang Univ, Dept Phys, Nanchang 330031, Jiangxi, Peoples R China
[3] Nanchang Univ, Dept Elect Informat Engn, Nanchang 330031, Jiangxi, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2020年 / 59卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Quantum cryptography; Quantum private comparison; Four-particle GHZ state; EFFICIENT PROTOCOL;
D O I：
10.1007/s10773-020-04446-9
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A new quantum private comparison protocol with four-particle GHZ states is proposed. Unlike most previous quantum private comparison protocols, this quantum private comparison protocol can compare the equality of three information bits in each comparison, which could greatly reduce the times of comparisons. The private input of either party will not be leaked out to others, including participants. Besides, it's simple to implement the protocol with current technologies since only single-particle measurements and Bell measurements are involved. Furthermore, our protocol has good performance of withstanding various outside attacks and participant attacks.
引用
收藏
页码：1798 / 1806
页数：9
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