What kind of noise guarantees security for the kirchhoff-law-johnson-noise key exchange?

Robert Mingesz, Gergely Vadai, Z. Gingl

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This paper is a supplement to our recent one about the analysis of the noise properties in the Kirchhoff-law-Johnson-noise (KLJN) secure key exchange system [Gingl and Mingesz, PLOS ONE 9 (2014) e96109, doi: 10.1371/journal.pone. 0096109]. Here, we use purely mathematical statistical derivations to prove that only normal distribution with special scaling can guarantee security. Our results are in agreement with earlier physical assumptions [Kish, Phys. Lett. A 352 (2006) 178-182, doi: 10.1016/j.physleta.2005.11.062]. Furthermore, we have carried out numerical simulations to show that the communication is clearly unsecure for improper selection of the noise properties. Protection against attacks using time and correlation analysis is not considered in this paper. Related simulations are available at .

Original languageEnglish
Article number1450021
JournalFluctuation and Noise Letters
Volume13
Issue number3
DOIs
Publication statusPublished - 2014

Fingerprint

Kirchhoff law
Key Exchange
Correlation Analysis
Gaussian distribution
Attack
supplements
Scaling
normal density functions
Numerical Simulation
attack
derivation
simulation
communication
scaling
Simulation

Keywords

  • KLJN
  • noise
  • secure key distribution
  • secure key exchange
  • unconditionally secure communication

ASJC Scopus subject areas

  • Mathematics(all)
  • Physics and Astronomy(all)

Cite this

What kind of noise guarantees security for the kirchhoff-law-johnson-noise key exchange? / Mingesz, Robert; Vadai, Gergely; Gingl, Z.

In: Fluctuation and Noise Letters, Vol. 13, No. 3, 1450021, 2014.

Research output: Contribution to journalArticle

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