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Proceedings Paper

DPS quantum key distribution and related technologies
Author(s): Kyo Inoue; Hiroki Takesue; Toshimori Honjo
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Paper Abstract

A unique quantum key distribution (QKD) protocol, called DPS (differential-phase-shift) QKD, has been proposed and developed at NTT and Osaka University, which utilizes a coherent pulse train instead of individual photons as in traditional QKD protocols such as BB84. Its security is based on the fact that every phase difference of a highlyattenuated coherent pulse train cannot be fully measured. This protocol has features of simple setup, potential for a high key creation rate, and robustness against photon-number-splitting attack. This paper presents recent research activities on DPS-QKD.

Paper Details

Date Published: 26 January 2009
PDF: 9 pages
Proc. SPIE 7236, Quantum Communications Realized II, 72360I (26 January 2009); doi: 10.1117/12.808590
Show Author Affiliations
Kyo Inoue, Osaka Univ. (Japan)
NTT Corp. (Japan)
Hiroki Takesue, NTT Corp. (Japan)
Toshimori Honjo, NTT Corp. (Japan)

Published in SPIE Proceedings Vol. 7236:
Quantum Communications Realized II
Yasuhiko Arakawa; Masahide Sasaki; Hideyuki Sotobayashi, Editor(s)

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