The security of practical quantum key distribution

By Valerio Scarani, H. Bechmann-Pasquinucci, Nicolas J. Cerf, Miloslav Dusek, Norbert Lutkenhaus, Momtchil Peev. 2008

3,194 citations recorded by the source corpus.

Quantum key distribution (QKD) is the first quantum information task to reach the level of mature technology, already fit for commercialization. It aims at the creation of a secret key between authorized partners connected by a quantum channel and a classical authenticated channel. The security of the key can in principle be guaranteed without putting any restriction on an eavesdropper's power. This article provides a concise up-to-date review of QKD, biased toward the practical side. Essential theoretical tools that have been developed to assess the security of the main experimental platforms are presented (discrete-variable, continuous-variable, and distributed-phase-reference protocols).

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

View Paper: https://www.semanticscholar.org/paper/aaa0290dbd7a1b80e88f38ac326ab55afa5dae29

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Twisted photons: new quantum perspectives in high dimensions (2017, background): “[30] Valerio Scarani, Helle Bechmann-Pasquinucci, Nico-”
One-Way Quantum Repeater Based on Near-Deterministic Photon-Emitter Interfaces (2019, methodology): “Assuming quantum key distribution is performed using a six-state variant of the BB84 protocol we have that [17]”
Fundamental limits of repeaterless quantum communications (2015, neutral): “By restricting the optimization in ERðEÞ to an input EPR state F, we get the direct part ERðEÞ ER rE ð Þ as already noticed in equation (6).”
Full-field implementation of a perfect eavesdropper on a quantum cryptography system. (2010, background): “Although security of the quantum key distribution (QKD) protocol is unconditionally prove”
Long-term performance of the SwissQuantum quantum key distribution network in a field environment (2011, neutral): “The reviews of Gisin et al [3] and Scarani et al [4] present the evolution of QKD over the last few decades.”
The Impact of Quantum Computing on Present Cryptography (2018, background): “Both discrete variable coding and distributed phase reference coding use photon counting and post-select the events in which a detection has effectively taken place [29].”
Practical challenges in quantum key distribution (2016, neutral): “…is determined by the type of attacks considered in the corresponding security proof; demonstrating security against the so-called collective attacks 6 is an important challenge for an implementation; however, information-theoretic security is achieved only when security against the most general…”
High rate, long-distance quantum key distribution over 250 km of ultra low loss fibres (2009, background): “To date, the COW protocol has been proven robust against some zero-error attacks, among which beam-splitting attacks [15, 16], [23]–[25] and a certain class of unambiguous state discrimination attack [23].”