Cryptanalysis of Bigdeli algorithm using Çokal’s attack

Abstract

Chaotic cryptography is a new field that has seen a significant amount of research activity during the last 20 years. Despite the many proposals that use various methods in the design of encryption algorithms, there is a definite need for a mathematically rigorous cryptanalysis of these designs. In this study, we analyze the security weaknesses of the “N. Bigdeli, Y. Farid, K. Afshar, A robust hybrid method for image encryption based on Hopfield neural network, Computers and Electrical Engineering 38 (2012) 356–369”. By applying Çokal’s attack, we show that all the secret parameters can be revealed.