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Related papers: Comments On "A New Transient Attack On The Kish Ke…

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This is the longer (partially unpublished) version of response; the shorter version (http://arxiv.org/abs/physics/0605013) is published in Physics Letters A. We point out that the claims in the comment-paper of Scheuer and Yariv are either…

General Physics · Physics 2007-05-23 Laszlo B. Kish

We introduce a protocol with a reconfigurable filter system to create non-overlapping single loops in the smart power grid for the realization of the Kirchhoff-Law-Johnson-(like)-Noise secure key distribution system. The protocol is valid…

Cryptography and Security · Computer Science 2013-12-18 Elias Gonzalez , Laszlo B. Kish , Robert Balog , Prasad Enjeti

The Kish key distribution system has been proposed as a class ical alternative to quantum key distribution. The idealized Kish scheme elegantly promise s secure key distribution by exploiting thermal noise in a transmission line. However,…

Cryptography and Security · Computer Science 2014-05-21 Lachlan J. Gunn , Andrew Allison , Derek Abbott

In this paper, we introduce the Kirchhoff-Law-Johnson-Noise (KLJN) as an approach to securing satellite communications. KLJN has the potential to revolutionize satellite communication security through its combination of simplicity,…

Cryptography and Security · Computer Science 2025-06-13 Lucas Truax , Sandip Roy , Laszlo B. Kish

We classify and analyze bit errors in the current measurement mode of the Kirchhoff-law-Johnson-noise (KLJN) key distribution. The error probability decays exponentially with increasing bit exchange period and fixed bandwidth, which is…

Cryptography and Security · Computer Science 2014-02-14 Yessica Saez , Laszlo B. Kish , Robert Mingesz , Zoltan Gingl , Claes G. Granqvist

This study addresses a new question regarding the security of the Kirchhoff-Law-Johnson-Noise (KLJN) scheme compromised by DC sources at Alice and Bob: What is the impact of these parasitic sources on active attacks, such as the…

Cryptography and Security · Computer Science 2020-04-08 Mutaz Melhem , Laszlo Kish

It is shown that the original Kirchhoff-loop-Johnson(-like)-noise (KLJN) cipher is naturally protected against the man-in-the-middle (MITM) attack, if the eavesdropper is using resistors and noise voltage generators just like the sender and…

General Physics · Physics 2007-05-23 Laszlo B. Kish

It is shown that narrowing the difference between the high and low resistor values in the Kirchhoff Law-Johnson Noise (KLJN) key exchange strongly affects security against a recently introduced binary classifier-based wire resistance…

General Physics · Physics 2026-05-06 Mehmet Yildirim , Laszlo B. Kish

First, we show a new inexpensive defense against intruders and the man-in-the-middle attack in the Kirchhoff's-loop-Johnson-like-noise (KLJN) cipher. Then instead of point-to-point communication, we propose a high efficiency, secure…

General Physics · Physics 2007-05-23 Laszlo B. Kish , Robert Mingesz

General Trojan horse attacks on quantum key distribution systems are analyzed. We illustrate the power of such attacks with today's technology and conclude that all system must implement active counter-measures. In particular all systems…

Quantum Physics · Physics 2013-05-29 N. Gisin , S. Fasel , B. Kraus , H. Zbinden , G. Ribordy

Recently, Tsai et al. (Laser Phys. Lett. 17, 075202, 2020) proposed a lightweight authenticated semi-quantum key distribution protocol for a quantum participant to share a secret key with a classical participant. However, this study points…

Quantum Physics · Physics 2020-10-21 Jun Gu , Tzonelih Hwang

We point out that arguments for the security of Kish's noise-based cryptographic protocol have relied on an unphysical no-wave limit, which if taken seriously would prevent any correlation from developing between the users. We introduce a…

Quantum Physics · Physics 2013-04-01 Charles H. Bennett , C. Jess Riedel

We consider quantum key distribution implementations in which the receiver's apparatus is fixed and does not depend on his choice of basis at each qubit transmission. We show that, although theoretical quantum key distribution is proven…

Quantum Physics · Physics 2014-07-29 Michel Boyer , Ran Gelles , Tal Mor

In this paper, we survey the state of the art of the secure key exchange method that is secured by the laws of classical statistical physics, and involves the Kirchhoff's law and the generalized Johnson noise equation, too. We discuss the…

Cryptography and Security · Computer Science 2012-06-07 Laszlo B. Kish , Ferdinand Peper

Recently, we proposed a classical communicator which was inspired by the Kirchhoff-loop-Johnson-like-Noise (KLJN) communicator and was claimed totally secure. Here we withdraw this claim and prove that, similarly to earlier intuitive…

General Physics · Physics 2007-05-23 Laszlo B. Kish

We critically analyze the results and claims in [Physics Letters A 373 (2009) 901-904]. We show that the strong security leak appeared in the simulations is only an artifact and not caused by "multiple reflections". Since no wave modes…

General Physics · Physics 2014-02-07 Laszlo B. Kish , Tamas Horvath

Recently, Zhang, Li, and Guo have proposed a particular eavesdropping attack [Phys. Rev. A {\bf 63}, 036301 (2001), quant-ph/0009042] which shows that my quantum key distribution protocol based on entanglement swapping [Phys. Rev. A {\bf…

Quantum Physics · Physics 2016-09-08 Adan Cabello

The statistical fluctuations of the mean-square noise voltages measured at Alice's and Bob's ends in the KLJN scheme are used to implement a binary classifier for a new type of wire resistance-based attack. The data are plotted on a…

General Physics · Physics 2026-03-24 Mehmet Yildirim , Fahrettin Ay , Laszlo B. Kish

Recently a new quantum key distribution protocol using coherent and thermal states was proposed. In this work this kind of two-layer QKD protocol is formalized and its security against the most common attacks, including external control and…

Quantum Physics · Physics 2014-12-22 Rubens Viana Ramos

In this paper,we propose a modified Anshel-Anshel-Goldfeld(AAG) key exchange scheme. The hardness assumption underlying this modified construction is based on the membership problem for Mihailova subgroups of the braid group, a problem that…

Group Theory · Mathematics 2026-01-27 Hanling Lin , Yu Han