Secure quantum key distribution

By Hoi-Kwong Lo, Marcos Curty, Kiyoshi Tamaki. Nature Photonics, 2014

1,219 citations recorded by the source corpus.

An overview is given of the state-of-the-art research into secure communication based on quantum cryptography. The present security model together with its assumptions, strengths and weaknesses is discussed. Recent experimental progress and remaining challenges are surveyed as are the latest developments in quantum hacking and countermeasures. Secure communication is crucial in the Internet Age, and quantum mechanics stands poised to revolutionize cryptography as we know it today. In this Review, we introduce the motivation and the current state of the art of research in quantum cryptography. In particular, we discuss the present security model together with its assumptions, strengths and weaknesses. After briefly introducing recent experimental progress and challenges, we survey the latest developments in quantum hacking and countermeasures against it.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/24899c71bc5cccb4263b3b1746e19f9756d78ff9

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Citations in the corpus

Optimal architectures for long distance quantum communication (2015, background): “(1) The atomic ensemble can be used as quantum memory with high coupling efficiency (> 80%29,30) and compatible with HEG for the first generation of QRs31.”
Self-referenced continuous-variable quantum key distribution protocol (2015, background): “Unfortunately, signiﬁcant technological challenges still remain in generation and detection of single photons, although important advances have been made over past three decades [4, 5].”
Optical communications using orbital angular momentum beams (2015, background): “, the BB84 protocol of Bennet and Brassard) encodes information on the polarization states and so can allow only one bit of information to be encoded onto each photon [105,106].”
Metropolitan quantum key distribution with silicon photonics (2017, background): “Moreover, the configurability of the silicon photonics platform allows for complex monitoring circuits that protect against side-channel attacks [51].”
Secure quantum key distribution with realistic devices (2020, background): “A brief overview of the implementation security of QKD can be found in a survey article in (Lo et al., 2014) and an ETSI white paper15 by Lucamarini et al. A short overview of the practical challenges associated with QKD can be found in (Diamanti et al., 2016).”
Practical challenges in quantum key distribution (2016, neutral): “More details on all protocols can be found in refs 6,7,38,39.”
Long-distance continuous-variable quantum key distribution by controlling excess noise (2016, methodology): “Currently, two available approaches referred to as discrete-variable QKD 3,4 and continuous-variable (CV) QKD 5,6 are employed to distribute secret keys.”
Imaging with quantum states of light (2019, methodology): “Notably, the parametric down conversion process has been used in the demonstration of Hong-Ou-Mandel (HOM) two photon interference [18], implementation of delayed-choice experiments [19, 20], quantum teleportation [21], elaboration of optical quantum gates and information protocols [22, 23] as well ”