File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Quantum key distribution with delayed privacy amplification and its application to the security proof of a two-way deterministic protocol

TitleQuantum key distribution with delayed privacy amplification and its application to the security proof of a two-way deterministic protocol
Authors
KeywordsDeterministic protocols
Key generation rate
One-time pads
Privacy amplification
Quantum channel
Issue Date2012
PublisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.org
Citation
Physical Review A - Atomic, Molecular, And Optical Physics, 2012, v. 85 n. 3 How to Cite?
AbstractPrivacy amplification (PA) is an essential postprocessing step in quantum key distribution (QKD) for removing any information an eavesdropper may have on the final secret key. In this paper, we consider delaying PA of the final key after its use in one-time pad encryption and prove its security. We prove that the security and the key generation rate are not affected by delaying PA. Delaying PA has two applications: it serves as a tool for significantly simplifying the security proof of QKD with a two-way quantum channel, and also it is useful in QKD networks with trusted relays. To illustrate the power of the delayed PA idea, we use it to prove the security of a qubit-based two-way deterministic QKD protocol which uses four states and four encoding operations. © 2012 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/145929
ISSN
2014 Impact Factor: 2.808
2015 SCImago Journal Rankings: 1.418
ISI Accession Number ID
Funding AgencyGrant Number
RGC of the HKSAR Government700709P
NSERC
CRC
CIFAR
QuantumWorks
NSFC11074283
Funding Information:

We thank H.-K. Lo for enlightening discussions. This work is supported in part by RGC under Grant No. 700709P of the HKSAR Government, NSERC, the CRC Program, CIFAR, QuantumWorks, and the NSFC under Grant No. 11074283.

References

 

DC FieldValueLanguage
dc.contributor.authorFung, CHFen_HK
dc.contributor.authorMa, Xen_HK
dc.contributor.authorChau, HFen_HK
dc.contributor.authorCai, QYen_HK
dc.date.accessioned2012-03-27T09:02:10Z-
dc.date.available2012-03-27T09:02:10Z-
dc.date.issued2012en_HK
dc.identifier.citationPhysical Review A - Atomic, Molecular, And Optical Physics, 2012, v. 85 n. 3en_HK
dc.identifier.issn1050-2947en_HK
dc.identifier.urihttp://hdl.handle.net/10722/145929-
dc.description.abstractPrivacy amplification (PA) is an essential postprocessing step in quantum key distribution (QKD) for removing any information an eavesdropper may have on the final secret key. In this paper, we consider delaying PA of the final key after its use in one-time pad encryption and prove its security. We prove that the security and the key generation rate are not affected by delaying PA. Delaying PA has two applications: it serves as a tool for significantly simplifying the security proof of QKD with a two-way quantum channel, and also it is useful in QKD networks with trusted relays. To illustrate the power of the delayed PA idea, we use it to prove the security of a qubit-based two-way deterministic QKD protocol which uses four states and four encoding operations. © 2012 American Physical Society.en_HK
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.orgen_HK
dc.relation.ispartofPhysical Review A - Atomic, Molecular, and Optical Physicsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong Licenseen_US
dc.subjectDeterministic protocols-
dc.subjectKey generation rate-
dc.subjectOne-time pads-
dc.subjectPrivacy amplification-
dc.subjectQuantum channel-
dc.titleQuantum key distribution with delayed privacy amplification and its application to the security proof of a two-way deterministic protocolen_HK
dc.typeArticleen_HK
dc.identifier.emailChau, HF: hfchau@hku.hken_HK
dc.identifier.authorityChau, HF=rp00669en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevA.85.032308en_HK
dc.identifier.scopuseid_2-s2.0-84858120896en_HK
dc.identifier.hkuros199053en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84858120896&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume85en_HK
dc.identifier.issue3en_HK
dc.identifier.isiWOS:000301333500003-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridFung, CHF=8201367800en_HK
dc.identifier.scopusauthoridMa, X=9241310600en_HK
dc.identifier.scopusauthoridChau, HF=7005742276en_HK
dc.identifier.scopusauthoridCai, QY=26649369600en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats