Improvement on "an efficient protocol for the quantum private comparison of equality with W state"

被引：11
|
作者：
Liu, Wen-Jie [1 ,2 ]
Liu, Chao [2 ]
Chen, Han-Wu [3 ]
Liu, Zhi-Hao [3 ]
Yuan, Min-Xiao [2 ]
Lu, Jin-Shen [2 ]
机构：
[1] Nanjing Univ Informat Sci & Technol, Jiangsu Engn Ctr Network Monitoring, Nanjing 210044, Jiangsu, Peoples R China
[2] Nanjing Univ Informat Sci & Technol, Sch Comp & Software, Nanjing 210044, Jiangsu, Peoples R China
[3] Southeast Univ, Sch Comp Sci & Engn, Nanjing 211189, Jiangsu, Peoples R China
来源：
INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2014年 / 12卷 / 01期
关键词：
Quantum private comparison; information leak; W-class state; improvement; ENTANGLED STATES; COMMUNICATION; AUTHENTICATION; TELEPORTATION; SECRET;
D O I：
10.1142/S0219749914500014
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
A quantum private comparison (QPC) protocol based on W states [W. Liu et al., Opt. Commun. 284, 3160 (2011)] has pointed out there is a flaw of information leak [Y. B. Li et al., Eur. Phys. J. D. 66, 110 (2012)]. In order to solve the problem, a special kind of W-class state is introduced, and its construction framework of quantum circuits is sketched. Based on this kind of W-class states, an improvement on Liu et al.'s protocol is presented. Analysis shows the improvement can not only hold the characteristics of original protocol, but also avoid the information leak that Li et al. pointed out.
引用
收藏
页数：10
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