  In this work we provide numerical results concerning a silicon-on-insulator
photonic neuromorphic circuit configured as a physical unclonable function. The
proposed scheme is enhanced with the capability to be operated as an
unconventional deterministic pseudo-random number generator, suitable for
cryptographic applications that alleviates the need for key storage in
non-volatile digital media. The proposed photonic neuromorphic scheme is able
to offer NIST test compatible numbers with an extremely low false
positive/negative probability below 10-14. The proposed scheme offers
multi-functional capabilities due to the fact that it can be simultaneously
used as an integrated photonic accelerator for machine-learning applications
and as a hardware root of trust.
