Paper 2014/146 Original: eprint.iacr.org/2014/146 ↗
Untappable communication channels over optical fibers from quantum-optical noise
Abstract
Coherent light, as produced by lasers, gives rise to an intrinsic noise, known as quantum noise, optical noise or shot noise. AlphaEta is a protocol which exploits this physical phenomenon to obtain secure data encryption or key distribution over a fiber-optic channel in the presence of an eavesdropper. In this paper we focus on the cryptographic aspects of AlphaEta and its variants. Moreover, we propose a new protocol for which we can provide a rigorous proof that the eavesdropper obtains neglible information. In comparison to single-photon quantum cryptography, AlphaEta provide much higher throughputs combined with a well-known technology.
Metadata
- Available format(s)
PDF- Category
- Applications
- Publication info
- Preprint.
- History
- 2014-02-27: last updated
- 2014-02-27: published
- Short URL
- https://ia.cr/2014/146
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2014/146,
author = {Geraldo A. Barbosa and Jeroen van de Graaf},
title = {Untappable communication channels over optical fibers from quantum-optical noise},
howpublished = {Cryptology {ePrint} Archive, Paper 2014/146},
year = {2014},
url = {https://eprint.iacr.org/2014/146}
}