A chaotic map-control-based and plain image-related cryptosystem

Yuling Luo, Lvchen Cao, Senhui Qiu, Hui Lin, Jim Harkin, J Liu

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

A novel image encryption algorithm based on the total plain image and tent map is proposed in this work. The pixels’ value of a plain image and an initial key are firstly quantified to be a decimal to be used as the initial value of tent map. The quantification algorithm is mainly based on multiplication operation. Therefore, the tiny changes of the plain image can lead to very different quantification results. Then, a digital sequence generated from tent map is transformed to two ergodic sequences which are used for the following permutation, and the diffusion is controlled at the same time. In the diffusion process, the pixel values are modified based on the division and modulus operations according to eight special chaotic values. Finally, the performance analysis and test experiments are achieved, and the results illustrate that there is a high security against several common attacks.
Original languageEnglish
Pages (from-to)2293-2310
JournalNonlinear Dynamics
Volume83
Issue number4
DOIs
Publication statusE-pub ahead of print - 12 Nov 2015

Keywords

  • Image encryption
  • Permutation Diffusion
  • Tent map
  • Security analysis

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