Generating a Binary Symmetric Channel for Wiretap Codes

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Harrison, WK (Author) Other; Fernandes, T (Author) Other; Gomes, MAC (Author) Other; João P. Vilela (Author) Other

Journal

Title: IEEE Transactions on Information Forensics and Security

Vol. 14

Pages: 2128-2138

ISSN: 1556-6013

Publisher: IEEE

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 11 Citations

Other information

Authenticus ID: P-00Q-MSY

DOI: 10.1109/tifs.2019.2892010

Abstract (EN): In this paper, we fill a void between information theoretic security and practical coding over the Gaussian wiretap channel using a three-stage encoder/decoder technique. Security is measured using Kullback-Leibler divergence and resolvability techniques along with a limited number of practical assumptions regarding the eavesdropper's decoder. The results specify a general coding recipe for obtaining both secure and reliable communications over the Gaussian wiretap channel, and one specific set of concatenated codes is presented as a test case for the sake of providing simulation-based evaluation of security and reliability over the network. It is shown that there exists a threshold in signal-to-noise ratio (SNR) over a Gaussian channel, such that receivers experiencing SNR below the threshold have no practical hope of receiving information about the message when the three-stage coding technique is applied. Results further indicate that the two innermost encoding stages successfully approximate a binary symmetric channel, allowing the outermost encoding stage (e.g., a wiretap code) to focus solely on secrecy coding over this approximated channel.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11