DPS quantum key distribution and related technologies

Kyo Inoue; Hiroki Takesue; Toshimori Honjo

doi:10.1117/12.808590

26 January 2009 DPS quantum key distribution and related technologies

Kyo Inoue, Hiroki Takesue, Toshimori Honjo

Proceedings Volume 7236, Quantum Communications Realized II; 72360I (2009) https://doi.org/10.1117/12.808590
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

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.

Citation Download Citation

Kyo Inoue, Hiroki Takesue, and Toshimori Honjo "DPS quantum key distribution and related technologies", Proc. SPIE 7236, Quantum Communications Realized II, 72360I (26 January 2009); https://doi.org/10.1117/12.808590

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