Fundamental finite key limits for information reconciliation in quantum key distribution

Tomamichel, Marco and Martínez Mateo, Jesús and Pacher, Christoph and Elkouss, David (2014). Fundamental finite key limits for information reconciliation in quantum key distribution. In: "2014 IEEE International Symposium on Information Theory", 29 Jun-04 Jul 2014, Honolulu, Hawai. ISBN 9781479951871. pp. 1469-1473. https://doi.org/10.1109/ISIT.2014.6875077.

Description

Title: Fundamental finite key limits for information reconciliation in quantum key distribution
Author/s:
  • Tomamichel, Marco
  • Martínez Mateo, Jesús
  • Pacher, Christoph
  • Elkouss, David
Item Type: Presentation at Congress or Conference (Article)
Event Title: 2014 IEEE International Symposium on Information Theory
Event Dates: 29 Jun-04 Jul 2014
Event Location: Honolulu, Hawai
Title of Book: 2014 IEEE International Symposium on Information Theory (ISIT 2014)
Date: June 2014
ISBN: 9781479951871
Subjects:
Faculty: E.T.S. de Ingenieros Informáticos (UPM)
Department: Matemática Aplicada a las Tecnologías de la Información y las Comunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The security of quantum key distribution protocols is guaranteed by the laws of quantum mechanics. However, a precise analysis of the security properties requires tools from both classical cryptography and information theory. Here, we employ recent results in non-asymptotic classical information theory to show that information reconciliation imposes fundamental limitations on the amount of secret key that can be extracted in the finite key regime. In particular, we find that an often used approximation for the information leakage during one-way information reconciliation is flawed and we propose an improved estimate.

More information

Item ID: 35102
DC Identifier: http://oa.upm.es/35102/
OAI Identifier: oai:oa.upm.es:35102
DOI: 10.1109/ISIT.2014.6875077
Official URL: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6867217
Deposited by: Memoria Investigacion
Deposited on: 22 May 2015 12:17
Last Modified: 22 May 2015 12:17
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