Research Article
An Effective RGB Image Encryption Algorithm Using Chaotic Maps And Memory Cellular Automata
@INPROCEEDINGS{10.4108/eai.7-12-2021.2314755, author={Ramya C and Rakesh Balaji and Karthikeyan S}, title={An Effective RGB Image Encryption Algorithm Using Chaotic Maps And Memory Cellular Automata}, proceedings={Proceedings of the First International Conference on Combinatorial and Optimization, ICCAP 2021, December 7-8 2021, Chennai, India}, publisher={EAI}, proceedings_a={ICCAP}, year={2021}, month={12}, keywords={image encryption algorithm rgb memory cellular automata}, doi={10.4108/eai.7-12-2021.2314755} }- Ramya C
Rakesh Balaji
Karthikeyan S
Year: 2021
An Effective RGB Image Encryption Algorithm Using Chaotic Maps And Memory Cellular Automata
ICCAP
EAI
DOI: 10.4108/eai.7-12-2021.2314755
Abstract
This paper proposes an efficient algorithm for en- ciphering digital RGB images. It makes use of two different dynamical systems. One is chaotic maps and the other is memory cellular automata. The algorithm uses the hash function SHA - 256 on each of the red, green and blue channels of the RGB image for key generation. One notable thing is that the usage of the hash value indicates that the keys generated depend on the plaintext. This key stream created will be used for the generation of the seed values for the chaotic maps we use ie., Logistic-sine and Logistic-tent maps as well as for the generation of the rules for memory cellular automata. The plaintext ie., the input image is first permuted pixel-wise randomly and then undergoes chaotic diffusion. Then the fourth order Memory Cellular Automata (MCA) is applied on it. The algorithm proposed is analyzed with various attacks and their results are discussed..