Information theoretically secure, enhanced Johnson noise based key distribution over the smart grid with switched filters.

PLoS One

Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas, United States of America.

Published: March 2014

AI Article Synopsis

  • The introduced protocol utilizes a reconfigurable filter system to establish non-overlapping loops in smart power grids, aiming for a secure key distribution method based on Kirchhoff-Law-Johnson-(like)-Noise.
  • The focus is on one-dimensional radial networks, which resemble the chain-like structure of electricity distribution from utilities to customers.
  • The analysis of the protocol assesses its efficiency in terms of the number of steps required as the grid size increases, indicating its potential for universal security in key distribution across various smart grid geometries.

Article Abstract

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 for one-dimensional radial networks (chain-like power line) which are typical of the electricity distribution network between the utility and the customer. The speed of the protocol (the number of steps needed) versus grid size is analyzed. When properly generalized, such a system has the potential to achieve unconditionally secure key distribution over the smart power grid of arbitrary geometrical dimensions.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3723689PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0070206PLOS

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