Performance Analysis for PUF Data Using Fuzzy Extractor

The extraction of a stable signal from noisy data is very useful in applications that aim to combine it with a cryptographic key. An approach based on an error correcting code was proposed by Dodis et al., which is known as a fuzzy extractor. Physical unclonable functions (PUFs) generate device-specific data streams, although PUFs are noisy functions. In this paper, we describe a method for preparing a PUF key during fuzzy extractor implementation. The experimental results showed that all possible combinations of input message length and the number of correctable errors were tested for a BCH code with codeword length N, which was the length of the PUF responses.