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

arXiv
Authors: Akihiro Mizutani, Nobuyuki Imoto, Kiyoshi Tamaki

Year

2015

Paper ID

26929

Status

Preprint

Abstract Read

~2 min

Abstract Words

82

Citations

N/A

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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  • This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
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  • 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...

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