DocumentCode
3068448
Title
Secure key rate of the BB84 protocol using finite sample bits
Author
Sano, Yousuke ; Matsumoto, Ryutaroh ; Uyematsu, Tomohiko
Author_Institution
Dept. of Commun. & Integrated Syst., Tokyo Inst. of Technol., Tokyo, Japan
fYear
2010
fDate
13-18 June 2010
Firstpage
2677
Lastpage
2681
Abstract
We improve the non-asymptotic key rate shown by Scarani and Renner by proposing several methods to construct tighter conservative confidence interval of the phase error rate than the one shown by them. In addition, we show that the accurate channel estimation method non-asymptotically increases the key rate over the amplitude damping channel as well as the asymptotic case in the BB84 protocol.
Keywords
channel estimation; cryptographic protocols; quantum cryptography; BB84 protocol; amplitude damping channel; channel estimation method; conservative confidence interval; finite sample bits; nonasymptotic key rate; phase error rate; secure key rate; Channel estimation; Damping; Error analysis; Error correction; Information science; Performance analysis; Privacy; Protocols; Security; Statistics;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory Proceedings (ISIT), 2010 IEEE International Symposium on
Conference_Location
Austin, TX
Print_ISBN
978-1-4244-7890-3
Electronic_ISBN
978-1-4244-7891-0
Type
conf
DOI
10.1109/ISIT.2010.5513653
Filename
5513653
Link To Document