Shor-Preskill-type security proof for quantum key distribution without public announcement of bases

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We give a Shor-Preskill-type security proof to quantum key distribution without public announcement of bases [W.Y. Hwang , Phys. Lett. A 244, 489 (1998)]. First, we modify the Lo-Chau protocol once more so that it finally reduces to the quantum key distribution without public announcement of bases. Then we show how we can estimate the error rate in the code bits based on that in the checked bits in the proposed protocol, which is the central point of the proof. We discuss the problem of imperfect sources and that of large deviation in the error rate distributions. We discuss when the bases sequence must be discarded.
Publisher
AMER PHYSICAL SOC
Issue Date
2003-01
Language
ENG
Article Type
Article
Description

©2003 The American Physical Society URL: http://link.aps.org/abstract/PRA/v67/e012302 DOI: 10.1103/PhysRevA.67.012302 PACS: 03.67.Dd

Keywords

ERROR-CORRECTING CODES; UNCONDITIONAL SECURITY; BELL THEOREM; CRYPTOGRAPHY; STATES

Citation

PHYSICAL REVIEW A, v.67, pp.964 - 966

ISSN
1050-2947
URI
http://hdl.handle.net/10203/1538
Appears in Collection
PH-Journal Papers(저널논문)
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