Employing covert communications-based information reconciliation and multiple spatial modes to polarization entanglement QKD.
Name:
DV_Multimode_QKD_with_Covert_C ...
Size:
1.237Mb
Format:
PDF
Description:
Final Accepted Manuscript
Affiliation
Univ Arizona, Dept Elect & Comp EngnIssue Date
2019-02-01
Metadata
Show full item recordPublisher
OPTICAL SOC AMERCitation
John Gariano and Ivan B. Djordjevic, "Employing covert communications-based information reconciliation and multiple spatial modes to polarization entanglement QKD," Opt. Lett. 44, 687-690 (2019)Journal
OPTICS LETTERSRights
© 2019 Optical Society of America.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
The information that is leaked to an eavesdropper during the error reconciliation phase of quantum key distribution (QKD) protocols limits the maximum bit error rate (BER) of a system. In a standard QKD protocol, parity bits are transmitted over an authenticated noiseless channel, to which Eve has access. This Letter presents the concept of using a covert classical communication channel to transmit the parity bits between Alice and Bob without Eve gaining information of the transmitted parity bits. This allows for higher secure key generation rates and operation of a QKD system in which the BER exceeds the limit of the standard protocol. This concept is then applied to a practical free-space optical system that contains multiple parallel channels, where channel loss, crosstalk, atmospheric turbulence effects, and noise are considered.Note
12 month embargo; published online: 31 January 2019ISSN
1539-4794PubMed ID
30702711Version
Final accepted manuscriptSponsors
MURI program, Office of Naval Research (ONR) [N00014-13-1-0627]Additional Links
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-44-3-687ae974a485f413a2113503eed53cd6c53
10.1364/OL.44.000687