An Improved Absolute-Cosine Chaotification Model and Its Simple Application in PRNG

Chaotic systems are widely used in various aspects such as information security, signal processing, and synchronous control. The structural complexity the chaotic behavior of two significant factors affecting their practical applications. In this paper, we propose a universal two-dimensional (2D) absolute-cosine model (ACCM). 2D-ACCM is composed nonlinear bounded cosine function an absolute value function. It can construct new maps with simple structures complex behaviors on basis existing systems. To verify effectiveness proposed system, first choose one-dimensional (1D) one 2D map seed to generate maps, respectively. results analysis show that these have more wider ranges than some advanced maps. Then hardware experiment platform based field-programmable gate array (FPGA) for implementation Finally, chaos-based pseudo-random number generator (PRNG) introduced application. experimental be easily implemented FPGA chaos-PRNGs numbers excellent randomness.