Quoth Eugene Salamin:

Buy FPGA board.? Buy FPGA programming software.? Program and debug FPGA.? Write software drivers.? Test and certify algorithm.? Enjoy your nice new pseudo RNG.

Alternatively, buy Ivy Bridge computer.? Enjoy Intel's nice new true RNG.

VIA had true RNGs on x86-family processors a decade ago. FSL had true RNGs on ARM-family processors last decade. I suspect that TI had them 2 decades ago, as I know TI was throwing every feature Nokia wanted into their SoCs, and Nokia was patenting HW RNGs back in the 90s. Why the desire to be so late to the game? Phil