dorsal/arxiv
View SchemaResponse to Scheuer-Yariv: "A Classical Key-Distribution System based on Johnson (like) noise -How Secure?"
| Authors | Laszlo B. Kish |
|---|---|
| Categories | |
| ArXiv ID | physics/0605013 |
| URL | https://arxiv.org/abs/physics/0605013 |
| DOI | 10.1016/j.physleta.2006.07.037 |
| Journal | Physics Letters A, Volume 359, Issue 6, 11 December 2006, Pages 741-744 |
Abstract
We point out that the claims in the comment-paper of Scheuer and Yariv are either irrelevant or incorrect. The idealized Kirchoff-loop-Johnson-like-noise (KLJN) scheme is totally secure therefore it is more secure than idealized quantum communication schemes which can never be totally secure because of the inherent noise processes in those communication schemes and the statistical nature of eavesdropper detection based on error statistics. On the other hand, with sufficient resources, a practical/non-ideal realization of the KLJN cipher can arbitrarily approach the idealized limit and outperform even the idealized quantum communicator schemes because the non-ideality-effects are determined and controlled by the design. The cable resistance issue analyzed by Scheuer and Yariv is a good example for that because the eavesdropper has insufficient time window to build a sufficient statistics and the actual information leak can be designed. We show that Scheuer's and Yariv's numerical result of 1% voltage drop supports higher security than that of quantum communicators. Moreover, choosing thicker or shorter wires can arbitrarily reduce this voltage drop further; the same conclusion holds even according to the equations of Scheuer and Yariv.
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"abstract": "We point out that the claims in the comment-paper of Scheuer and Yariv are\neither irrelevant or incorrect. The idealized Kirchoff-loop-Johnson-like-noise\n(KLJN) scheme is totally secure therefore it is more secure than idealized\nquantum communication schemes which can never be totally secure because of the\ninherent noise processes in those communication schemes and the statistical\nnature of eavesdropper detection based on error statistics. On the other hand,\nwith sufficient resources, a practical/non-ideal realization of the KLJN cipher\ncan arbitrarily approach the idealized limit and outperform even the idealized\nquantum communicator schemes because the non-ideality-effects are determined\nand controlled by the design. The cable resistance issue analyzed by Scheuer\nand Yariv is a good example for that because the eavesdropper has insufficient\ntime window to build a sufficient statistics and the actual information leak\ncan be designed. We show that Scheuer\u0027s and Yariv\u0027s numerical result of 1%\nvoltage drop supports higher security than that of quantum communicators.\nMoreover, choosing thicker or shorter wires can arbitrarily reduce this voltage\ndrop further; the same conclusion holds even according to the equations of\nScheuer and Yariv.",
"arxiv_id": "physics/0605013",
"authors": [
"Laszlo B. Kish"
],
"categories": [
"physics.gen-ph"
],
"doi": "10.1016/j.physleta.2006.07.037",
"journal_ref": "Physics Letters A, Volume 359, Issue 6, 11 December 2006, Pages\n 741-744",
"title": "Response to Scheuer-Yariv: \"A Classical Key-Distribution System based on Johnson (like) noise -How Secure?\"",
"url": "https://arxiv.org/abs/physics/0605013"
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