Reference-frame-independent quantum key distribution with an untrusted source

作     者：Jia-Ji Li Yang Wang Hong-Wei Li Wan-Su Bao 李家骥;汪洋;李宏伟;鲍皖苏

作者机构：Henan Key Laboratory of Quantum Information and CryptographySSF IEUZhengzhou 450001China Synergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of ChinaHefei 230026China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2020年第29卷第3期

页      面：82-88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：Project supported by the National Basic Research Program of China(Grant No.2013CB338002) the National Natural Science Foundation of China(Grant Nos.61505261,61675235,61605248,and 11304397) 

主　　题：quantum key distribution reference frame independent finite key untrusted source 

摘      要：Reference frame independent quantum key distribution(RFI-QKD) allows two legitimate parties to share the common secret keys with the drift of reference frames. In order to reduce the actual requirements of RFI-QKD protocol on light source and make it more suitable for practical applications, this paper gives a specific description of RFI-QKD protocol with an untrusted source and analyzes the practical security of this protocol based on the two-way plug and play structure commonly used in practical systems. In addition, we also investigate the performance of RFI-QKD with an untrusted source considering statistical fluctuations based on Chernoff bound. Using simulations, we compare the secret key rate of RFIQKD with an untrusted source to RFI-QKD with trusted source. The results show that the performance of RFI-QKD with an untrusted source is similar to that of RFI-QKD with trusted source, and the finite data size clearly effects the performance of our protocol.