Delayed error verification in quantum key distribution

Quantum key distribution (QKD) provides an unconditional secure key generation method between two distant legitimate parties Alice and Bob based on the fundamental properties of quantum mechanics, in the presence of an eavesdropper Eve. Since key reconciliation cannot always assure that the reconcil...

Full description

Saved in:

Bibliographic Details
Published in:	Chinese science bulletin 2014-08, Vol.59 (23), p.2825-2828
Main Authors:	Zhang, Chun-Mei, Song, Xiao-Tian, Treeviriyanupab, Patcharapong, Li, Mo, Wang, Chao, Li, Hong-Wei, Yin, Zhen-Qiang, Chen, Wei, Han, Zheng-Fu
Format:	Article
Language:	eng
Subjects:	Amplification Chemistry/Food Science Earth Sciences Engineering equations Errors Failure Humanities and Social Sciences Keys Letter Life Sciences mechanics multidisciplinary Physics Post-processing Privacy probability Quantum mechanics Science Science (multidisciplinary) 延迟无条件安全生成方法误差校验误差检定量子力学量子密钥分发量子密钥分配
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Quantum key distribution (QKD) provides an unconditional secure key generation method between two distant legitimate parties Alice and Bob based on the fundamental properties of quantum mechanics, in the presence of an eavesdropper Eve. Since key reconciliation cannot always assure that the reconciled keys between Alice and Bob are identical, error verification is an important step in QKD. In this paper, we propose a scheme of delayed error verification using extra keys gained by privacy amplification with an arbitrarily small failure probability. The proposed scheme simplifies the post-processing procedure in QKD, which can be applied in practical QKD systems.
ISSN:	1001-6538 1861-9541