Security of device-independent quantum key distribution protocols: a review

Device-independent quantum key distribution (DI-QKD) is often seen as the ultimate key exchange protocol in terms of security, as it can be performed securely with uncharacterised black-box devices. The advent of DI-QKD closes several loopholes and side-channels that plague current QKD systems. Whil...

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Published inQuantum (Vienna, Austria) Vol. 7; p. 932
Main Authors Primaatmaja, Ignatius W., Goh, Koon Tong, Tan, Ernest Y.-Z., Khoo, John T.-F., Ghorai, Shouvik, Lim, Charles C.-W.
Format Journal Article
LanguageEnglish
Published Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften 02.03.2023
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Summary:Device-independent quantum key distribution (DI-QKD) is often seen as the ultimate key exchange protocol in terms of security, as it can be performed securely with uncharacterised black-box devices. The advent of DI-QKD closes several loopholes and side-channels that plague current QKD systems. While implementing DI-QKD protocols is technically challenging, there have been recent proof-of-principle demonstrations, resulting from the progress made in both theory and experiments. In this review, we will provide an introduction to DI-QKD, an overview of the related experiments performed, and the theory and techniques required to analyse its security. We conclude with an outlook on future DI-QKD research.
ISSN:2521-327X
2521-327X
DOI:10.22331/q-2023-03-02-932