Design of PUF Based Chaotic Random Number Generator

The creation of key sequences for cryptographic protocols such as digital signatures, hashing, encryption, seed vector, one-time passwords (OTP), etc. depends heavily on pseudo random number generators (PRNG). Simple chaotic (PRNG)s exhibit superior randomness and unpredictability. The primary factor increasing area usage is the initial seed, which requires some memory to retain. When compared to other techniques, a simple chaotic pseudo random number generator (CPRNG) has the quality of being very unpredictable and sensitized to the initial seed. If the original seed is compromised, CPRNG is however exposed. We introduced a novel PUF-CPRNG key generation method that is useful for cryptographic applications in this paper. The purpose of PUF in this study is to generate a secured first seed. The proposed PUF-CPRNG which contains dynamic refresh logic to assurance correctness of the generated random numbers at all times. The Proposed Design Consumes 37.5% less Power than the Existing method [1].