A New Image Encryption Algorithm Using Cellular Automata

Abstract

A significant part of multimedia data to be transmitted over the network consists of image data. In this paper,a cellular automata based image encryption algorithm which functions as a stream cipher has been presented. This encryption algorithm is specifically intended towards encrypting the image data. Proposed image encryption algorithm uses a hybrid cellular automata to produce a random key-stream while AES-key expansion module infuses the reasonable security in the image encryption system.