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Physics Letters A

A new look at the classical key exchange system based on amplified Johnson noise

Pao-Lo Liu

Published Jan 23, 2009• 26 citations
Publisher
DOI
10.1016/j.physleta.2009.01.022

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Comments on “A New Transient Attack on the Kish Key Distribution System”

László B. Kish, Claes G. Granqvist

Abstract A recent IEEE Access Paper by Gunn, Allison and Abbott (GAA) proposed a new transient attack against the Kirchhoff-law-Johnson-noise (KLJN) secure key exchange system. The attack is valid, but it is easy to build a defense for the KLJN system. Here we note that GAA’s paper contains several invalid statements regarding security measures and the continuity of functions in classical physics. These deficiencies are clarified in our present paper, wherein we also emphasize that a new version of the KLJN system is immune against all existing attacks, including the one by GAA.

arXiv:1606.02697•Metrology and Measurement Systems•Jul 18, 2016•22 citations
Abstract A recent IEEE Access Paper by Gunn, Allison and Abbott (GAA) proposed a new transient attack against the Kirchhoff-law-Johnson-noise (KLJN) secure key exchange system. The attack is valid, but it is easy to build a defense for the KLJN system. Here we note that GAA’s paper contains several invalid statements regarding security measures and the continuity of functions in classical physics. These deficiencies are clarified in our present paper, wherein we also emphasize that a new version of the KLJN system is immune against all existing attacks, including the one by GAA.