Three-step semiquantum secure direct communication protocol

作     者：ZOU XiangFu QIU DaoWen 

作者机构：Department of Computer Science Sun Yat-sen University School of Mathematics and Computational Science Wuyi University Department of Computer Science and Engineering the Chinese University of Hong Kong SQIG–Instituto de TelecomunicacoesDepartamento de Matem'atica Instituto Superior TecnicoUniversidade de Lisboa 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2014年第57卷第9期

页      面：1696-1702页

核心收录：

学科分类：11[军事学] 1105[军事学-军队指挥学] 07[理学] 0839[工学-网络空间安全] 08[工学] 070201[理学-理论物理] 110505[军事学-密码学] 110503[军事学-军事通信学] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.61272058 and 61073054) the Natural Science Foundation of Guangdong Province of China(Grant Nos.10251027501000004 and S2012040007324) the Specialized Research Fund for the Doctoral Programof Higher Education of China(Grant No.20100171110042) the Science and Technology Project of Jiangmen City of China(Grant No.131) 

主　　题：quantum secure direct communication semiquantum complete robustness security 

摘      要：Quantum secure direct communication is the direct communication of secret messages without need for establishing a shared secret key *** the existing schemes,quantum secure direct communication is possible only when both parties are *** this paper,we construct a three-step semiquantum secure direct communication(SQSDC)protocol based on single photon sources in which the sender Alice is *** a semiquantum protocol,a person is termed classical if he(she)can measure,prepare and send quantum states only with the fixed orthogonal quantum basis{|0,|1}.The security of the proposed SQSDC protocol is guaranteed by the complete robustness of semiquantum key distribution protocols and the unconditional security of classical one-time pad ***,the proposed SQSDC protocol is also completely *** robustness indicates that nonzero information acquired by an eavesdropper Eve on the secret message implies the nonzero probability that the legitimate participants can find errors on the bits tested by this *** the proposed protocol,we suggest a method to check Eves disturbing in the doves returning phase such that Alice does not need to announce publicly any position or their coded bits value after the photons transmission is ***,the proposed SQSDC protocol can be implemented with the existing *** with many quantum secure direct communication protocols,the proposed SQSDC protocol has two merits:firstly the sender only needs classical capabilities;secondly to check Eves disturbing after the transmission of quantum states,no additional classical information is needed.