INTEGRATED CIRCUIT FOR ADAPTIVE PUF STABILIZATION PROCESS

An IC for adaptive PUF stabilization process includes a PUF stabilizer and a non-volatile memory. The PUF stabilizer has PUF units, a statistic processor, a majority voting generator, and a dark-bit masker. The statistic processor is connected to the PUF units, and performs measurements on the PUF units to output results. The majority voting generator is connected to the statistic processor to accumulate the results into a statistic result, which is output as a PUF bit. The dark-bit masker is connected to the PUF units, and marks unstable PUF units bit as dark-bit and create dark-bit masks. The non-volatile memory is connected to the PUF stabilizer to store the dark-bit masks, and the dark-bits are replaced by specific bit sequences provided by the PUF stabilizer. This decreases bit error rates of the PUF measurement results, and allows customization of the quantity of dark bits per dark-bit mask used.