Abstract
The integrity of Integrated Circuits (ICs) has become a critical issue as a result of information security needs. Increased physical security is one of the most critical strategies for increasing the dependability of these circuits. Both computational and physical securities are required for these types of devices. The Physical Unclonable Function (PUF) contributes to the physical security of ICs in order to resist piracy and illegal access. The PUF generates random numbers that are unique to a particular IC. Pseudo Random Number Generators (PRNGs), on the other hand, are deterministic periodic finite state machines whose goal is to simulate the unpredictable behavior of a truly random number source over a finite period of time. In this paper, Chaos based Ring Oscillator-PUF (RO-PUF) using Tent map and Bernoulli Shift map are proposed to increase the randomness and uniqueness of the RNGs. Chaotic signs which are generated from the Tent map and Bernoulli Shift map have given as challenge to the PUF. Responses from the PUF have passed around 9 NIST tests with having p-value greater than 0.01 which satisfies the expected random behaviour.
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