Uses Chow parameters of Boolean threshold functions to estimate Rényi entropies of n-delay PUFs up to n=10, finding Shannon entropy asymptotically quadratic in n and close to max-entropy.
An easy-to-design PUF based on a single oscillator: The Loop PUF,
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Entropy Estimation of Physically Unclonable Functions via Chow Parameters
Uses Chow parameters of Boolean threshold functions to estimate Rényi entropies of n-delay PUFs up to n=10, finding Shannon entropy asymptotically quadratic in n and close to max-entropy.