An Inverter-based Lightweight Digital True Random Number Generator Circuit for IoT Device

An inverter-based lightweight digital true random number generator (DTRNG) circuit is proposed and verified in silicon. The entropy of inverter jitter is discussed and extracted. The proposed DTRNG circuit uses 8MHz clock and standard digital cell library which is suitable for IoT device with limited area and low working frequency, and it can be easily ported to other process platforms.