COSOI: True Random Number Generator Based on Coherent Sampling using the FD-SOI technology
Keywords:
True random number generator, coherent sampling, phase noise, jitter, ring oscillator, Allan variance, noise models, Fully Depleted Silicon On InsulatorAbstract
This work presents a proof of concept of the implementation of a Coherent Sampling Ring Oscillator TRNG (COSO-TRNG) using the Fully Depleted Silicon On Insulator (FD-SOI) technology. COSO-TRNG appears as one of the best structures optimizing the throughput per area trade-off and having a model for its entropy source. The back-biasing capability of the FD-SOI technology is proved here to be a very simple and efficient technique for the ring oscillator frequency calibration needed for the coherent sampling method. This is the first demonstration of feasibility of COSO-TRNG validated on ASIC FD22nm. A throughput of 3.36 Mbits/s was obtained, equivalent to results in the literature.True random number generator
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