COLOR IMAGE ENCRYPTION BASED ON TWO-DIMENSIONAL CELLULAR AUTOMATA

Ping Ping (), Feng Xu () and Zhi-Jian Wang ()
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Ping Ping: College of Computer and Information, Hohai University, Nanjing 210098, P. R. China
Feng Xu: College of Computer and Information, Hohai University, Nanjing 210098, P. R. China
Zhi-Jian Wang: College of Computer and Information, Hohai University, Nanjing 210098, P. R. China

International Journal of Modern Physics C (IJMPC), 2013, vol. 24, issue 10, 1-14

Abstract: Cellular automaton (CA) has a lot of inherent features, such as simple regular structure, local interaction, random-like behavior and massive parallelism, which make it a good candidate to design cryptosystems. Therefore, a number of CA-based image encryption systems have been proposed, though the drawbacks of small key space and weak security in one-dimensional (1D) CA cryptosystems are obvious. In this paper, a novel image encryption scheme is presented using a two-dimensional (2D) CA with nonlinear balanced rules. During the whole process of encryption, the confusion operation is performed by the nonlinear rule of CA, while the diffusion operation is achieved by the local interactions among cells. So confusion and diffusion are well integrated in our proposed scheme. The corresponding simulations and analyses illustrate that the scheme has quite prominent cryptographic properties as well as high security.

Keywords: Cryptography; image encryption; 2D cellular automata; 05.45.Vx (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1142/S012918311350071X

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