Combined physical unclonable function circuit implementation for generation true random number sequences

The possibility of using two physical unclonable functions (based on static random access memory and on the ring oscillators) to produce true random number sequences was investigated. Generated sequences successfully pass NIST and Diehard statistical tests. The possibility of solving the digital devices identification problem using physical unclonable function based on static RAM was investigated. Experimentation data (distances metric between digital devices identifiers) showed the possibility of using such technique for solving the problem of identification.