Controlled Deterministic Secure Quantum Communication Protocol Based on Three-Particle GHZ States in X-Basis  

作　　者：昌燕 张仕斌 闫丽丽 韩桂华 

机构地区：[1]College of Information Security Engineering,Chengdu University of Information Technology

出　　处：《Communications in Theoretical Physics》2015年第3期285-290,共6页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No.61402058;Science and Technology,Sichuan Province of China under Grant No.2013GZX0137;Fund for Young Persons Project of Sichuan Province of China under Grant No.12ZB017;the Foundation of Cyberspace Security Key Laboratory of Sichuan Higher Education Institutions under Grant No.szjj2014-074

摘　　要：A controlled deterministic secure quantum communication(CDSQC) protocol is proposed based on threeparticle GHZ state in X-basis.Only X-basis and Z_1Z_2X_3-basis(composed of Z-basis and X-basis) measurement are required,which makes the scheme more convenient than others in practical applications.By distributing a random key between both sides of the communication and performing classical XOR operation,we realize a one-time-pad scheme,therefore our protocol achieves unconditional secure.Because only user with legitimate identity string can decrypt the secret,our protocol can resist man-in-the middle attack.The three-particle GHZ state in X-basis is used as decoy photons to detect eavesdropping.The detection rate reaches 75% per qubit.

关 键 词：deterministic secure quantum communication eavesdropping detection classical XOR operation 

分 类 号：O413[理学—理论物理] TN918[理学—物理]