Can Two-Way Direct Communication Protocols Be Considered Secure?

We consider attacks on two-way quantum key distribution protocols in which an undetectable eavesdropper copies all messages in the message mode. We show that under the attacks, there is no disturbance in the message mode and that the mutual information between the sender and the receiver is always c...

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Detalles Bibliográficos
Autor principal: Pavičić, Mladen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2017
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5615084/
https://www.ncbi.nlm.nih.gov/pubmed/28952129
http://dx.doi.org/10.1186/s11671-017-2314-3
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author Pavičić, Mladen
author_facet Pavičić, Mladen
author_sort Pavičić, Mladen
collection PubMed
description We consider attacks on two-way quantum key distribution protocols in which an undetectable eavesdropper copies all messages in the message mode. We show that under the attacks, there is no disturbance in the message mode and that the mutual information between the sender and the receiver is always constant and equal to one. It follows that recent proofs of security for two-way protocols cannot be considered complete since they do not cover the considered attacks.
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spelling pubmed-56150842017-10-12 Can Two-Way Direct Communication Protocols Be Considered Secure? Pavičić, Mladen Nanoscale Res Lett Nano Express We consider attacks on two-way quantum key distribution protocols in which an undetectable eavesdropper copies all messages in the message mode. We show that under the attacks, there is no disturbance in the message mode and that the mutual information between the sender and the receiver is always constant and equal to one. It follows that recent proofs of security for two-way protocols cannot be considered complete since they do not cover the considered attacks. Springer US 2017-09-26 /pmc/articles/PMC5615084/ /pubmed/28952129 http://dx.doi.org/10.1186/s11671-017-2314-3 Text en © The Author(s) 2017 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Pavičić, Mladen
Can Two-Way Direct Communication Protocols Be Considered Secure?
title Can Two-Way Direct Communication Protocols Be Considered Secure?
title_full Can Two-Way Direct Communication Protocols Be Considered Secure?
title_fullStr Can Two-Way Direct Communication Protocols Be Considered Secure?
title_full_unstemmed Can Two-Way Direct Communication Protocols Be Considered Secure?
title_short Can Two-Way Direct Communication Protocols Be Considered Secure?
title_sort can two-way direct communication protocols be considered secure?
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5615084/
https://www.ncbi.nlm.nih.gov/pubmed/28952129
http://dx.doi.org/10.1186/s11671-017-2314-3
work_keys_str_mv AT pavicicmladen cantwowaydirectcommunicationprotocolsbeconsideredsecure

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