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Proceedings Paper

Quantum key distribution with unconditional security for all optical fiber network
Author(s): Osamu Hirota; Kentaro Kato; Masaki Shoma; Tsuyoshi Sasaki Usuda
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Paper Abstract

Previously the present protocol was referred as Yuen-Kim second version in our papers. In this paper, it is called Yuen protocol (Y-00) and we present an efficient implementation method of physical layer of Y-00 which can support a secure communication and a quantum key distribution (more generally key expansion) by IMDD (intensity modulation/direct detection) or FSK (frequency shift keying) optical fiber communication network. Although the general proof of the security is not yet given, a brief sketch of security analysis is shown, which involve an entanglement attack.

Paper Details

Date Published: 3 February 2004
PDF: 12 pages
Proc. SPIE 5161, Quantum Communications and Quantum Imaging, (3 February 2004); doi: 10.1117/12.504978
Show Author Affiliations
Osamu Hirota, Tamagawa Univ. (Japan)
Chuo Univ. (Japan)
Kentaro Kato, Chuo Univ. (Japan)
Masaki Shoma, Matsushita Research Institute Tokyo, Inc. (Japan)
Tsuyoshi Sasaki Usuda, Aichi Prefectural Univ. (Japan)

Published in SPIE Proceedings Vol. 5161:
Quantum Communications and Quantum Imaging
Ronald E. Meyers; Yanhua Shih, Editor(s)

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