Noise coupled physical unclonable functions system

摘要

The present invention relates to a non-physical replica function system in which noise is inserted to intentionally insert processing noise into the output of a physically replicable function to increase the challenge / response analysis difficulty. The present invention also provides a device including a PUF circuit and a noise inserter to generate and output a secondary response signal including processing noise upon receiving a challenge signal; A helper data storage configured to store helper data according to a challenge signal and a corresponding response signal corresponding to the PUF circuit of the device; And an authenticator that receives the secondary response signal from the device, removes the processing noise, generates an final response signal, and performs an authentication.