Skip to Main content Skip to Navigation
Journal articles

Experimental plug and play quantum coin flipping

Abstract : Performing complex cryptographic tasks will be an essential element in future quantum communica-tion networks. These tasks are based on a handful of fundamental primitives, such as coin flipping, where two distrustful parties wish to agree on a randomly generated bit. Although it is known that quantum versions of these primitives can offer information-theoretic security advantages with respect to classical protocols, a demonstration of such an advantage in a practical communication scenario has remained elusive. Here, we experimentally implement a quantum coin flipping protocol that performs strictly better than classically possible over a distance suitable for communication over metropolitan area optical networks. The implementation is based on a practical plug&play sys-tem, designed for quantum key distribution. We also show how to combine our protocol with coin flipping protocols that are almost perfectly secure against bounded adversaries, hence enhancing them with a level of information-theoretic security. Our results offer a powerful toolbox for future secure quantum communications.
Complete list of metadata

Cited literature [31 references]  Display  Hide  Download
Contributor : André Chailloux Connect in order to contact the contributor
Submitted on : Monday, December 22, 2014 - 11:54:03 AM
Last modification on : Sunday, January 3, 2021 - 11:28:02 PM
Long-term archiving on: : Saturday, April 15, 2017 - 7:59:52 AM


Files produced by the author(s)



Anna Pappa, Paul Jouguet, Thomas Lawson, André Chailloux, Matthieu Legré, et al.. Experimental plug and play quantum coin flipping. Nature Communications, Nature Publishing Group, 2014, pp.9. ⟨10.1038/ncomms4717⟩. ⟨hal-01094106⟩



Record views


Files downloads