Information leak in Liu et al.’s quantum private comparison and a new protocol

被引：0
|
作者：
Y. B. Li
Q. Y. Wen
F. Gao
H. Y. Jia
Y. Sun
机构：
[1] Beijing University of Posts and Telecommunications,State Key Laboratory of Networking and Switching Technology
[2] Xidian University,State Key Laboratory of Integrated Services Network
[3] Beijing Electronic Science and Technology Institute,undefined
来源：
The European Physical Journal D | 2012年 / 66卷
关键词：
Quantum Information;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In a recent paper [W. Liu, Y.B. Wang, Z.T. Jiang, Opt. Commun. 284, 3160 (2011)], a quantum private comparison (QPC) protocol based on W states was presented. Compared to the previous QPCs, the protocol is promising for that it can prevent the comparison result from revealing to the third party. However, this study point out that a flaw of information leak is existent in the protocol. And a new QPC which can avoid the flaw and has higher efficiency is proposed in this paper.
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