Information reconciliation for Quantum Key Distribution

Elkouss Coronas, David and Martinez Mateo, Jesus and Martín Ayuso, Vicente and Lancho Lancho, Daniel (2010). Information reconciliation for Quantum Key Distribution. In: "Updating Quantum Cryptography and Communications (UQCC 2010)", 18-20 Oct 2010, Tokio. p. 131.


Title: Information reconciliation for Quantum Key Distribution
  • Elkouss Coronas, David
  • Martinez Mateo, Jesus
  • Martín Ayuso, Vicente
  • Lancho Lancho, Daniel
Item Type: Presentation at Congress or Conference (Other)
Event Title: Updating Quantum Cryptography and Communications (UQCC 2010)
Event Dates: 18-20 Oct 2010
Event Location: Tokio
Date: October 2010
Faculty: Facultad de Informática (UPM)
Department: Lenguajes y Sistemas Informáticos e Ingeniería del Software
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Secret-key agreement, a well-known problem in cryptography, allows two parties holding correlated sequences to agree on a secret key communicating over a public channel. It is usually divided into three different procedures: advantage distillation, information reconciliation and privacy amplification. The efficiency of each one of these procedures is needed if a positive key rate is to be attained from the legitimate parties? correlated sequences. Quantum key distribution (QKD) allows the two parties to obtain correlated sequences, provided that they have access to an authenticated channel. The new generation of QKD devices is able to work at higher speeds and in noisier or more absorbing environments. This exposes the weaknesses of current information reconciliation protocols, a key component to their performance. Here we present a new protocol based in low-density parity-check (LDPC) codes that presents the advantages of low interactivity, rate adaptability and high efficiency,characteristics that make it highly suitable for next generation QKD devices.

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Item ID: 33028
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Deposited by: Memoria Investigacion
Deposited on: 21 Jan 2015 16:02
Last Modified: 21 Jan 2015 16:02
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