Abstract

In this paper, a new method is proposed for image encryption using chaotic signals and Max-heap tree. In this method, Max-heap tree is utilized for further complexity of the encryption algorithm, higher security and changing the amount of gray scale of each pixel of the original image. Studying the obtained results of the performed experiments, high resistance of the proposed method against brute-force and statistical invasions is obviously illustrated. Also, the obtained entropy of the method which is about 7.9931 is very close to the ideal amount of 8.

Key words: Image encryption, heap tree, logistic map.