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Image security system using recursive Cellular automata substitution and its parallelization

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3 Author(s)
Ebrahim Zarei Zefreh ; Department of Computer Science, Tarbiat Modares University, Tehran, Iran ; Sara Rajaee ; Meysam Farivary

This paper presents a novel image security system based on the replacement of the pixel values using recursive Cellular automata (CA) substitution. The advantages of our proposed method are that it is computationally efficient and it is reasonably passing sensibility analysis tests. The proposed method is carried out by using one half of image data to encrypt the other half of the image mutually. Our algorithm can encrypt image in parallel and be also applied to color image encryption. In this proposed method, size of key is dynamic and by changing a bit of security key the image cannot retrieve because our method is key sensitive. Simulation results obtained using color; white-black and gray-level images demonstrate the good performance of the proposed image security system.

Published in:

Computer Science and Software Engineering (CSSE), 2011 CSI International Symposium on

Date of Conference:

15-16 June 2011