An Encryption Application and FPGA Realization of a Fractional Memristive Chaotic System

The work in this paper extends a memristive chaotic system with transcendental nonlinearities to the fractional-order domain. extended system’s properties were validated through bifurcation analysis and spectral entropy. presented was employed substitution stage of an image encryption algorithm, including generalized Arnold map for permutation. scheme demonstrated its efficiency statistical tests, key sensitivity resistance brute force differential attacks. includes reconfigurable coordinate rotation digital computer (CORDIC) Grünwald–Letnikov (GL) architectures, which are essential trigonometric hyperbolic functions operator implementations, respectively. proposed implemented on Artix-7 FPGA board, achieving throughput 0.396 Gbit/s.