Controlled Quantum Secure Direct Communication Protocol Based on Extended Three-particle GHZ State Decoy

被引:0
作者
Fang, Tao [1 ]
Li, Min [2 ]
机构
[1] Sichuan Normal Univ, Coll Fundamental Educ, Chengdu, Peoples R China
[2] Sichuan Normal Univ, Coll Comp Sci, Chengdu, Peoples R China
来源
2014 17TH INTERNATIONAL CONFERENCE ON NETWORK-BASED INFORMATION SYSTEMS (NBIS 2014) | 2014年
关键词
CQSDC; extend three-particle GHZ state; decoy; eavesdropping detection; security; COLLECTIVE-NOISE CHANNEL; HYPERENTANGLEMENT; SCHEME;
D O I
10.1109/NBiS.2014.44
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Extended three-particle GHZ state decoy is introduced in controlled quantum secure direct communication to improve eavesdropping detection probability and prevent correlation-elicitation (CE) attack. Each particle of extended three-particle GHZ state decoy is inserted into sending particles to detect eavesdroppers, which reaches 63% eavesdropping detection probability. And decoy particles prevent the receiver from obtaining the correct correlation between particle 1 and particle 2 before the sender coding on them, so that he can not get any secret information without the controller's permission. In the security analysis, the maximum amount of information that a qubit contains is obtained by introducing the entropy theory method, and two decoy strategies are compared quantitatively. If the eavesdroppers intend to eavesdrop on secret information, the per qubit detection rate of using only two particles of extended three-particle GHZ state as decoy is 58%; while the presented protocol using three particles of extended three-particle GHZ state as decoy reaches per qubit 63%.
引用
收藏
页码:448 / 452
页数:5
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