A compact QRNG for IoT applications

The present paper describes a new QRNG based on the arrival time of photons. The device needs an external light source to fully control the generation of random bit. This allows to ensure an almost constant data rate, regardless possible environmental parameter variations, and a minimization of the contribution of other unwanted sources of noise (DCR). To increase the output rate, the QRNG is split up into several e lementary generators organized in an array working simultaneously. Moreover, an embedded post-processing block allows to improve the output entropy for a high quality random sequence. The device, now under test, has been designed in a standard 150nm CMOS technology. Preliminary results showed an average activity of about 30 Mbps (raw data).