Robust PUF based authentication

Physical Unclonable Functions (PUFs) can be seen as the fingerprint of a device. PUFs are ideal objects for device authentication due to its uniqueness. In this paper, PUF based authentication is studied from an information theoretical perspective considering compound sources, which models uncertainty in the PUF knowledge and some attack classes. It is shown, that authentication is robust against source uncertainty and a special class of attacks. The secrecy privacy capacity region is derived.