Color image encryption scheme using CML and DNA sequence operations

Xing-Yuan Wang; Hui-Li Zhang; Xue-Mei Bao

doi:10.1016/j.biosystems.2016.03.011

Color image encryption scheme using CML and DNA sequence operations

Biosystems. 2016 Jun:144:18-26. doi: 10.1016/j.biosystems.2016.03.011. Epub 2016 Mar 26.

Authors

Xing-Yuan Wang¹, Hui-Li Zhang², Xue-Mei Bao³

Affiliations

¹ Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116024, China. Electronic address: wangxy@dlut.edu.cn.
² Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116024, China. Electronic address: zhanghui7873@foxmail.com.
³ Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116024, China. Electronic address: baoxuemei1989@163.com.

PMID: 27026385
DOI: 10.1016/j.biosystems.2016.03.011

Abstract

In this paper, an encryption algorithm for color images using chaotic system and DNA (Deoxyribonucleic acid) sequence operations is proposed. Three components for the color plain image is employed to construct a matrix, then perform confusion operation on the pixels matrix generated by the spatiotemporal chaos system, i.e., CML (coupled map lattice). DNA encoding rules, and decoding rules are introduced in the permutation phase. The extended Hamming distance is proposed to generate new initial values for CML iteration combining color plain image. Permute the rows and columns of the DNA matrix and then get the color cipher image from this matrix. Theoretical analysis and experimental results prove the cryptosystem secure and practical, and it is suitable for encrypting color images of any size.

Keywords: Chaotic image encryption; Color image; Coupled map lattice; DNA coding.

MeSH terms

Algorithms
Base Sequence* / physiology
Color*
Computer Security
Computers, Molecular*
Image Processing, Computer-Assisted / methods*
Nonlinear Dynamics*