Abstract: An electronic device interfaced with a multiple digital signatures security engine, internally or externally, which enable the device to obtain PUF-based security credentials with the option to generate multiple unique digital signatures from the same source of PUF entropy. The multiple digital signatures security zone includes a source of PUF entropy dynamically measurable, a non-volatile memory storage media and a digital circuitry performing all the functions requested by the electronic device interfaced. The electronic device is able to select and switch between which unique digital signature to be involved for its related cybersecurity applications without depending on power-up sequences or single time operations after power-up sequence.

Abstract: A triggerable circuitry for a Physically Unclonable Function (PUF) source and true random number generator comprises an array of metastable latches PUF cells units that produce output states in racing configuration dependent on manufacturing variations and noise fed into a counting circuit. The technology as a single circuit extracts detected random bits' states for true random numbers generation, different each time when requested, and is able to feed a PUF recovery system that will use the fairly static bits' patterns of the measured circuit although each time different.