Breaking an image encryption algorithm based on chaos

Chengqing Li, Michael Z.Q. Chen, Kwok Tung Lo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)

Abstract

Recently, a chaos-based image encryption algorithm called MCKBA (Modified Chaotic-Key Based Algorithm) was proposed. This paper analyzes the security of MCKBA and finds that it can be broken with a differential attack, which requires only four chosen plain-images. Performance of the attack is verified by experimental results. In addition, some defects of MCKBA, including insensitivity with respect to changes of plain-image/secret key, are reported.
Original languageEnglish
Pages (from-to)2067-2076
Number of pages10
JournalInternational Journal of Bifurcation and Chaos
Volume21
Issue number7
DOIs
Publication statusPublished - 1 Jan 2011

Keywords

  • chaos
  • differential attack
  • encryption
  • Image

ASJC Scopus subject areas

  • Modelling and Simulation
  • Applied Mathematics

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