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arXiv · 1510.00327

Robustness of round-robin differential-phase-shift quantum-key-distribution protocol against source flaws

Akihiro Mizutani·Nobuyuki Imoto·Kiyoshi Tamaki
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Abstract

Recently, a new type of quantum key distribution, called the round-robin differential phase-shift (RRDPS) protocol [Nature 509, 475 (2014)], was proposed, where the security can be guaranteed without monitoring any statistics. In this Letter, we investigate source imperfections and side-channel attacks on the source of this protocol. We show that only three assumptions are needed for the security, and no detailed characterizations of the source or the side-channel attacks are needed. This high robustness is another striking advantage of the RRDPS protocol over other protocols.

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Akihiro Mizutani, Nobuyuki Imoto, Kiyoshi Tamaki. 2016-05-06. Robustness of round-robin differential-phase-shift quantum-key-distribution protocol against source flaws. https://doi.org/10.1103/physreva.92.060303

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