Open Access

An Efficient Objective Intelligibility Measure for Frequency Domain Scramblers

EURASIP Journal on Information Security20082007:032028

DOI: 10.1155/2007/32028

Received: 17 August 2007

Accepted: 3 December 2007

Published: 24 January 2008

Abstract

An objective performance measure is proposed to evaluate the intelligibility of a speech signal having its frequency subbands permuted. The proposed tool can be used to generate efficient keys for frequency domain scramblers as well as to assess the results of cryptanalysis.

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Authors’ Affiliations

(1)
Department of Electrical Engineering, Military Institute of Engineering (IME)
(2)
Center for Telecommunications Studies (CETUC), Pontifical Catholic University of Rio de Janeiro (PUC-Rio)

References

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Copyright

© A. M. C. R. Borzino et al. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.