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

被引：29

作者：

Li, Y. B. ^{[1
,2
,3
]}

Wen, Q. Y. ^{[1
]}

Gao, F. ^{[1
]}

Jia, H. Y. ^{[1
]}

Sun, Y. ^{[3
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China

[2] Xidian Univ, State Key Lab Integrated Serv Network, Xian 710071, Peoples R China

[3] Beijing Elect Sci & Technol Inst, Beijing 100070, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL D | 2012年 / 66卷 / 04期

基金：

北京市自然科学基金;

关键词：

CONTROLLED TELEPORTATION; ENTANGLED STATE; BIT COMMITMENT; CRYPTOGRAPHY;

D O I：

10.1140/epjd/e2012-30065-9

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

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.

引用

页数：6

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