Efficient bit sifting scheme of post-processing in quantum key   distribution

doi:10.1007/s11128-015-1035-8

CORC > 北京大学 > 信息科学技术学院

	Efficient bit sifting scheme of post-processing in quantum key distribution
	Li, Qiong ; Le, Dan ; Wu, Xianyan ; Niu, Xiamu ; Guo, Hong
刊名	QUANTUM INFORMATION PROCESSING
	2015
关键词	Quantum cryptography Quantum key distribution Post-processing Bit sifting Source coding Unconditionally secure authentication Net secure key rate HASH FUNCTIONS
DOI	10.1007/s11128-015-1035-8
英文摘要	Bit sifting is an important step in the post-processing of quantum key distribution (QKD). Its function is to sift out the undetected original keys. The communication traffic of bit sifting has essential impact on the net secure key rate of a practical QKD system. In this paper, an efficient bit sifting scheme is presented, of which the core is a lossless source coding algorithm. Both theoretical analysis and experimental results demonstrate that the performance of the scheme is approaching the Shannon limit. The proposed scheme can greatly decrease the communication traffic of the post-processing of a QKD system, which means the proposed scheme can decrease the secure key consumption for classical channel authentication and increase the net secure key rate of the QKD system, as demonstrated by analyzing the improvement on the net secure key rate. Meanwhile, some recommendations on the application of the proposed scheme to some representative practical QKD systems are also provided.; National Natural Science Foundation of China [61471141, 61361166006, 61301099]; Fundamental Research Funds for the Central Universities [HIT. KISTP. 201416, HIT. KISTP. 201414]; SCI(E); EI; ARTICLE; xm.niu@hit.edu.cn; 10; 3785-3811; 14
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/416013]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Li, Qiong,Le, Dan,Wu, Xianyan,et al. Efficient bit sifting scheme of post-processing in quantum key distribution[J]. QUANTUM INFORMATION PROCESSING,2015.
APA	Li, Qiong,Le, Dan,Wu, Xianyan,Niu, Xiamu,&Guo, Hong.(2015).Efficient bit sifting scheme of post-processing in quantum key distribution.QUANTUM INFORMATION PROCESSING.
MLA	Li, Qiong,et al."Efficient bit sifting scheme of post-processing in quantum key distribution".QUANTUM INFORMATION PROCESSING (2015).