In theory, quantum key distribution (QKD) provides information-theoretic security based on the laws of physics. Owing to the imperfections of real-life implementations, however, there is a big gap between the theory and practice of QKD, which has been recently exploited by several quantum hacking activities. To fill this gap, a novel approach, called measurement-device-independent QKD (mdiQKD), has been proposed. It can remove all side-channels from the measurement unit, arguably the most vulnerable part in QKD systems, thus offering a clear avenue towards secure QKD realisations. Here, we review the latest developments in the framework of mdiQKD, together with its assumptions, strengths and weaknesses.
@article{arxiv.1409.5157,
title = {Measurement-device-independent quantum cryptography},
author = {Feihu Xu and Marcos Curty and Bing Qi and Hoi-Kwong Lo},
journal= {arXiv preprint arXiv:1409.5157},
year = {2015}
}
Comments
An invited review to the special issue of the IEEE Journal of Selected Topics in Quantum Electronics (JSTQE) on 'Quantum communication and cryptography'