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Article: Practical issues in quantum-key-distribution postprocessing

TitlePractical issues in quantum-key-distribution postprocessing
Authors
KeywordsPhysics
Issue Date2010
PublisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.org
Citation
Physical Review A - Atomic, Molecular, And Optical Physics, 2010, v. 81 n. 1 How to Cite?
AbstractQuantum key distribution (QKD) is a secure key generation method between two distant parties by wisely exploiting properties of quantum mechanics. In QKD, experimental measurement outcomes on quantum states are transformed by the two parties to a secret key. This transformation is composed of many logical steps (as guided by security proofs), which together will ultimately determine the length of the final secret key and its security. We detail the procedure for performing such classical postprocessing taking into account practical concerns (including the finite-size effect and authentication and encryption for classical communications). This procedure is directly applicable to realistic QKD experiments and thus serves as a recipe that specifies what postprocessing operations are needed and what the security level is for certain lengths of the keys. Our result is applicable to the BB84 protocol with a single or entangled photon source. © 2010 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/80667
ISSN
2014 Impact Factor: 2.808
2015 SCImago Journal Rankings: 1.418
ISI Accession Number ID
Funding AgencyGrant Number
NSERC
HKSAR GovernmentHKU 701007P
Funding Information:

We thank J.-C. Boileau, C. Erven, N. Godbout, M. Hayashi, D. W. Leung, H.-K. Lo, N. Lutkenhaus, M. Koashi, X. Mo, B. Qi, R. Renner, V. Scarani, D. Stebila, K. Tamaki, W. Tittel, Q. Wang, Y. Zhao and other participants in the workshop Quantum Works QKD Meeting (Waterloo, Canada) and Finite Size Effects in QKD (Singapore) for enlightening discussions. X. Ma especially thanks H. F. Chau for hospitality and support during his visit at the University of Hong Kong. This work is supported by the NSERC Innovation Platform Quantum Works, the NSERC Discovery grant, the RGC Grant No. HKU 701007P of the HKSAR Government, and the Postdoctoral Grant Program of NSERC.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorFung, CHFen_HK
dc.contributor.authorMa, Xen_HK
dc.contributor.authorChau, HFen_HK
dc.date.accessioned2010-09-06T08:08:58Z-
dc.date.available2010-09-06T08:08:58Z-
dc.date.issued2010en_HK
dc.identifier.citationPhysical Review A - Atomic, Molecular, And Optical Physics, 2010, v. 81 n. 1en_HK
dc.identifier.issn1050-2947en_HK
dc.identifier.urihttp://hdl.handle.net/10722/80667-
dc.description.abstractQuantum key distribution (QKD) is a secure key generation method between two distant parties by wisely exploiting properties of quantum mechanics. In QKD, experimental measurement outcomes on quantum states are transformed by the two parties to a secret key. This transformation is composed of many logical steps (as guided by security proofs), which together will ultimately determine the length of the final secret key and its security. We detail the procedure for performing such classical postprocessing taking into account practical concerns (including the finite-size effect and authentication and encryption for classical communications). This procedure is directly applicable to realistic QKD experiments and thus serves as a recipe that specifies what postprocessing operations are needed and what the security level is for certain lengths of the keys. Our result is applicable to the BB84 protocol with a single or entangled photon source. © 2010 The American Physical Society.en_HK
dc.languageengen_HK
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 License-
dc.rightsPhysical Review A (Atomic, Molecular and Optical Physics). Copyright © American Physical Society.en_HK
dc.subjectPhysics-
dc.titlePractical issues in quantum-key-distribution postprocessingen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1050-2947&volume=81&issue=1 article no. 012318&spage=&epage=&date=2010&atitle=Practical+issues+in+quantum-key-distribution+postprocessingen_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.81.012318en_HK
dc.identifier.scopuseid_2-s2.0-74949135913en_HK
dc.identifier.hkuros169447en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-74949135913&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume81en_HK
dc.identifier.issue1en_HK
dc.identifier.isiWOS:000274001500054-
dc.publisher.placeUnited Statesen_HK
dc.relation.projectProperties And Applications Of Quantum Low Density Parity Check And Related Codes-
dc.identifier.scopusauthoridFung, CHF=8201367800en_HK
dc.identifier.scopusauthoridMa, X=9241310600en_HK
dc.identifier.scopusauthoridChau, HF=7005742276en_HK

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