**Nadia M. G. Al-Saidi 1, Dhurgham Younus 1, Hayder Natiq 2,3, M. R. K. Ariffin 3,4,\*, M. A. Asbullah 3,5 and Z. Mahad <sup>3</sup>**


Received: 27 September 2020; Accepted: 3 November 2020; Published: 15 November 2020

**Abstract:** Using different chaotic systems in secure communication, nonlinear control, and many other applications has revealed that these systems have several drawbacks in different aspects. This can cause unfavorable effects to chaos-based applications. Therefore, presenting a chaotic map with complex behaviors is considered important. In this paper, we introduce a new 2D chaotic map, namely, the 2D infinite-collapse-Sine model (2D-ICSM). Various metrics including Lyapunov exponents and bifurcation diagrams are used to demonstrate the complex dynamics and robust hyperchaotic behavior of the 2D-ICSM. Furthermore, the cross-correlation coefficient, phase space diagram, and Sample Entropy algorithm prove that the 2D-ICSM has a high sensitivity to initial values and parameters, extreme complexity performance, and a much larger hyperchaotic range than existing maps. To empirically verify the efficiency and simplicity of the 2D-ICSM in practical applications, we propose a symmetric secure communication system using the 2D-ICSM. Experimental results are presented to demonstrate the validity of the proposed system.

**Keywords:** hyperchaotic behavior; symmetric encryption; arduino microcontrollers; optical channel
