Finite key size analysis of two-way quantum cryptography

Quantum cryptographic protocols solve the longstanding problem of distributing a shared secret string to two distant users by typically making use of one-way quantum channel. However, alternative protocols exploiting two-way quantum channel have been proposed for the same goal and with potential adv...

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Main Authors:	Shamsul Shaari, Jesni, Mancini, Stefano
Format:	Article
Language:	English
Published:	MDPI 2015
Subjects:	QC Physics
Online Access:	http://irep.iium.edu.my/47019/ http://irep.iium.edu.my/47019/ http://irep.iium.edu.my/47019/ http://irep.iium.edu.my/47019/1/entropy-17-02723.pdf

id	iium-47019
recordtype	eprints
spelling	iium-470192017-08-23T07:01:19Z http://irep.iium.edu.my/47019/ Finite key size analysis of two-way quantum cryptography Shamsul Shaari, Jesni Mancini, Stefano QC Physics Quantum cryptographic protocols solve the longstanding problem of distributing a shared secret string to two distant users by typically making use of one-way quantum channel. However, alternative protocols exploiting two-way quantum channel have been proposed for the same goal and with potential advantages. Here, we overview a security proof for two-way quantum key distribution protocols, against the most general eavesdropping attack, that utilize an entropic uncertainty relation. Then, by resorting to the “smooth” version of involved entropies, we extend such a proof to the case of finite key size. The results will be compared to those available for one-way protocols showing some advantages. MDPI 2015-04-30 Article PeerReviewed application/pdf en http://irep.iium.edu.my/47019/1/entropy-17-02723.pdf Shamsul Shaari, Jesni and Mancini, Stefano (2015) Finite key size analysis of two-way quantum cryptography. Entropy, 17 (5). pp. 2723-2740. ISSN 1099-4300 http://www.mdpi.com/1099-4300/17/5/2723 10.3390/e17052723
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QC Physics
spellingShingle	QC Physics Shamsul Shaari, Jesni Mancini, Stefano Finite key size analysis of two-way quantum cryptography
description	Quantum cryptographic protocols solve the longstanding problem of distributing a shared secret string to two distant users by typically making use of one-way quantum channel. However, alternative protocols exploiting two-way quantum channel have been proposed for the same goal and with potential advantages. Here, we overview a security proof for two-way quantum key distribution protocols, against the most general eavesdropping attack, that utilize an entropic uncertainty relation. Then, by resorting to the “smooth” version of involved entropies, we extend such a proof to the case of finite key size. The results will be compared to those available for one-way protocols showing some advantages.
format	Article
author	Shamsul Shaari, Jesni Mancini, Stefano
author_facet	Shamsul Shaari, Jesni Mancini, Stefano
author_sort	Shamsul Shaari, Jesni
title	Finite key size analysis of two-way quantum cryptography
title_short	Finite key size analysis of two-way quantum cryptography
title_full	Finite key size analysis of two-way quantum cryptography
title_fullStr	Finite key size analysis of two-way quantum cryptography
title_full_unstemmed	Finite key size analysis of two-way quantum cryptography
title_sort	finite key size analysis of two-way quantum cryptography
publisher	MDPI
publishDate	2015
url	http://irep.iium.edu.my/47019/ http://irep.iium.edu.my/47019/ http://irep.iium.edu.my/47019/ http://irep.iium.edu.my/47019/1/entropy-17-02723.pdf
first_indexed	2023-09-18T21:06:55Z
last_indexed	2023-09-18T21:06:55Z
_version_	1777410994636587008

Finite key size analysis of two-way quantum cryptography

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