Improving the security of multiparty quantum secret sharing against an attack with a fake signal

被引：167

作者：

Qin, Su-Juan ^{[1
]}

Gao, Fei

Wen, Qiao-Yan

Zhu, Fu-Chen

机构：

[1] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China

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

[3] Natl Lab Modern Commun, Chengdu 610041, Peoples R China

来源：

PHYSICS LETTERS A | 2006年 / 357卷 / 02期

基金：

中国国家自然科学基金;

关键词：

quantum secret sharing; Bell measurement; entangled state;

D O I：

10.1016/j.physleta.2006.04.030

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We come up with a special attack strategy to the multiparty quantum secret sharing protocol [Z.J. Zhang, Y. Li, Z.X. Man, Phys. Rev. A 71 (2005) 044301]. Using fake signal and Bell measurement, the agent Bob who generates the initial signals can elicit Alice's secret message. With little modification, our strategy also works for an improved version of this protocol. At last, a further improvement of the multiparty quantum secret sharing protocol is proposed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：101 / 103

页数：3

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