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arXiv · 1408.4426

The Security of Quantum Key Distribution using a Simplified Trusted Relay

William Stacey·Razieh Annabestani·Xiongfeng Ma·Norbert Lütkenhaus
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Abstract

We propose a QKD protocol for trusted node relays. Our protocol shifts the communication and computational weight of classical post-processing to the end users by reassigning the roles of error correction and privacy amplification, while leaving the exchange of quantum signals untouched. We perform a security analysis for this protocol based on the BB84 protocol on the level of infinite key formulas, taking into account weak coherent implementations involving decoy analysis.

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William Stacey, Razieh Annabestani, Xiongfeng Ma, Norbert Lütkenhaus. 2014-08-19. The Security of Quantum Key Distribution using a Simplified Trusted Relay. https://doi.org/10.1103/physreva.91.012338

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