Steganography by using Logistic Map Function and Cellular Automata

A tradeoff between the hiding capacity of a cover image and the quality of a stego-image in steganographic schemes is inevitable. In this study a hybrid model of cellular automata and chaotic function is proposed for steganography. In this method, N-bits mask is used for choosing a pixel position in main image which is suitable for hiding one bit of secret data. This mask is generated in each stage by cellular automat and logistic map function. Using cellular automata and logistic map function cause more security and safety in proposed method. Studying the obtained results of the performed experiments, high resistance of the proposed method against brute-force and statistical invasions is obviously illustrated.

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