Generalized Kirchhoff-Law-Johnson-Noise (KLJN) secure key exchange system using arbitrary resistors

2015/06/02 by Gergely Vadai, Robert Mingesz, Zoltan Gingl · 2 citations
Computer Science · #cs.CR

paper · pdf · doi:10.1038/srep13653

published as Scientific Reports 5, 13653 (2015)

arxiv created 2015/06/02 · arxiv updated 2015/09/23

Abstract

The Kirchhoff-Law-Johnson-Noise (KLJN) secure key exchange system has been introduced as a simple, very low cost and efficient classical physical alternative to quantum key distribution systems. The ideal system uses only a few electronic components - identical resistor pairs, switches and interconnecting wires - to guarantee perfectly protected data transmission. We show that a generalized KLJN system can provide unconditional security even if it is used with significantly less limitations. The more universal conditions ease practical realizations considerably and support more robust protection against attacks. Our theoretical results are confirmed by numerical simulations.

Cited by

• A Binary Classifier-Based Wire Resistance Attack on the KLJN Secure Key Exchanger
• Binary Classifier Wire-Resistance Attack on KLJN: Impact of Narrowing the Resistor Gap

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