Innovative image encryption scheme based on a new rapid hyperchaotic system and random iterative permutation

Multimedia data such as: images, audio and video have become significantly more important, since the exchange of digital data over the network (wired/wireless) has expanded. Therefore an increasing need to secure the important data many techniques are used to such purpose. Cryptography remains an important and wide used mean to secure data. In this aim we propose a new rapid hyperchaotic system with higher confusion and a unique equilibrium point. Detailed mathematical study based on dynamic tests such as lyapunov exponents, Poincare map, the Lyapunov Dimension computing, Dissipation and the study of an attractor existence. In addition an electronic implementation is realized to simulate the attractor behavior. The developed system is injected in a new proposed encryption algorithm to introduce high randomness and hyperchaotic behavior to its output applied on digital images. Tests and simulation results on many images kinds prove the efficiency and higher velocity of processing time of the proposed algorithm.