Cryptanalyzing a chaos-based image encryption algorithm using alternate structure

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)2077-2085
Journal / PublicationJournal of Systems and Software
Volume85
Issue number9
Online published12 Apr 2012
Publication statusPublished - Sep 2012

Abstract

Recently, a chaos-based image encryption algorithm with an alternate structure (IEAS) was proposed. This paper applies the differential cryptanalysis on the IEAS and finds that some of its properties favor the differential attack which can recover an equivalent secret key with only a few number of chosen plain-images. Detailed procedures for cryptanalyzing IEAS with a lower round number are presented. Both theoretical analysis and experimental results are provided to show the vulnerability of IEAS against differential attack. In addition, some other security defects of IEAS, including insensitivity with respect to changes of plain-images and insufficient size of the key space, are also pointed out and verified.

Research Area(s)

  • Chaos, Cryptanalysis, Differential attack, Image encryption

Citation Format(s)

Cryptanalyzing a chaos-based image encryption algorithm using alternate structure. / Zhang, Leo Yu; Li, Chengqing; Wong, Kwok-Wo; Shu, Shi; Chen, Guanrong.

In: Journal of Systems and Software, Vol. 85, No. 9, 09.2012, p. 2077-2085.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review