A Novel Image Encryption Scheme Based on Reversible Cellular Au- tomata

Updated time: 2019-04-17

【Summary】 In this paper, a new scheme for image encryption is presented by revers- ible cellular automata. The presented scheme is applied in three individ- ual steps. Firstly, the image is blocked and the pixels are substituted by a reversible cellular automaton. Then, image pixels are scrambled by an elementary cellular automata and finally the blocks are attached and pix- els are substituted by an individual reversible cellular automaton. Due to reversibility of used cellular automata, decryption scheme can reversely be applied. The experimental results show that encrypted image is suit- able visually and this scheme has satisfied quantitative performance.

【Keywords】 Cryptography Cellular automata Reversible cellular automata Image encryption Image scrambling Image substituting

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