A New Image Encryption Scheme Using Dual Chaotic Map Synchronization

Obaida Al-Hazaimeh¹, Mohammad Al-Jamal², Mohammed Bawaneh¹, Nouh Alhindawi³, and Bara’a Hamdoni²

¹Department of Computer Science and Information Technology, Al- Balqa Applied University, Jordan

²Department of Mathematics, Yarmouk University, Jordan

³Faculty of Sciences and Information Technology, Jadara University, Jordan

Abstract: Chaotic systems behavior attracts many researchers in the field of image encryption. The major advantage of using chaos as the basis for developing a crypto-system is due to its sensitivity to initial conditions and parameter tunning as well as the random-like behavior which resembles the main ingredients of a good cipher namely the confusion and diffusion properties. In this article, we present a new scheme based on the synchronization of dual chaotic systems namely Lorenz and Chen chaotic systems and prove that those chaotic maps can be completely synchronized with other under suitable conditions and specific parameters that make a new addition to the chaotic based encryption systems. This addition provides a master-slave configuration that is utilized to construct the proposed dual synchronized chaos-based cipher scheme. The common security analyses are performed to validate the effectiveness of the proposed scheme. Based on all experiments and analyses, we can conclude that this scheme is secure, efficient, robust, reliable, and can be directly applied successfully for many practical security applications in insecure network channels such as the Internet.

Keywords: Chaos, lorenz systems, chen systems, synchronization, cryptography.

Received April 7, 2020; accepted August 26, 2020