Design and Hardware Implementation of a Highly Flexible PRNG System for NIST-Validated Pseudorandom Sequences

This work presents the design of a system of a highly flexible pseudorandom number generator system (PRNG) incorporating both conventional and neuro-generators. The system integrates four internal generators with different conditions, to produce new output sequences with an adequate bits distribution and complexity. Two generators function at a frequency of 100 MHz with adjustable frequency settings, while two neuro-generators employ impulse neurons with distinct behaviours at 4 kHz, also modifiable. The proposed, system meets 12 statistical randomness based on NIST’s National Institute of Standards and Technology of U. S. test suite, including the Frequency test, Binary Matrix Rank test, Linear Complexity test, Random Excursion test, among others. Each resulted in a P-Value greater than 0.01, confirming the pseudo-randomness of the generated sequences. The system is implemented on an FPGA Field Programmable Gate Array Virtex 7xc7vx485t-2ffg1761, with a low occupancy percentage, demonstrating its feasibility for various applications.