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Quantum Cryptography Security

Efficient reconciliation protocol for discrete-variable quantum key distribution

arXiv
Authors: David Elkouss, Anthony Leverrier, Romain Alléaume, Joseph Boutros

Year

2009

Paper ID

9272

Status

Preprint

Abstract Read

~2 min

Abstract Words

103

Citations

N/A

Abstract

Reconciliation is an essential part of any secret-key agreement protocol and hence of a Quantum Key Distribution (QKD) protocol, where two legitimate parties are given correlated data and want to agree on a common string in the presence of an adversary, while revealing a minimum amount of information. In this paper, we show that for discrete-variable QKD protocols, this problem can be advantageously solved with Low Density Parity Check (LDPC) codes optimized for the BSC. In particular, we demonstrate that our method leads to a significant improvement of the achievable secret key rate, with respect to earlier interactive reconciliation methods used in QKD.

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  • This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
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  • Reconciliation is an essential part of any secret-key agreement protocol and hence of a Quantum Key Distribution (QKD) protocol, where two legitimate parties are given...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0901.2140 [2] arXiv https://arxiv.org/abs/0901.2140 [3] Publisher https://arxiv.org/abs/0901.2140

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