Improving the multiparty quantum secret sharing over two collective-noise channels against insider attack

被引：24

作者：

Sun, Ying ^{[1
,2
]}

Wen, Qiao-yan ^{[1
]}

Zhu, Fu-chen ^{[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] Natl Lab Modern Commun, Chengdu 610041, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2010年 / 283卷 / 01期

基金：

北京市自然科学基金; 中国博士后科学基金;

关键词：

Decoherence-free states; Collective noise; Quantum secret sharing; Quantum cryptography; ENTANGLEMENT; COMMUNICATION; CRYPTOGRAPHY; DECOHERENCE; KEY; STATES; CODES;

D O I：

10.1016/j.optcom.2009.08.063

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The security of the multiparty quantum secret sharing protocol presented by Zhang [Z.J. Zhang, Physica A, 361 (2006) 233] is analyzed. It is shown that this protocol is vulnerable to the insider attack since eavesdropping detection is performed only when all states arrive at the last agent. We propose an attack strategy and give an improved version of the original protocol. The improved protocol is robust and has the same traits with the original one. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：181 / 183

页数：3

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