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A new pseudo random bits generator via 2D chaotic system, diffusion, and permeation
(Maltepe Üniversitesi, 2019) Farhan, Alaa Kadhim; Tariq, Abeer; Ali, Rasha S.; Alsaidi, Nadia M. G.
Recently a remarkable correlation between chaos and cryptography has been established. Due to this close correlation, numerous chaos based cryptographic systems were developed during the past years. Some of these cryptosystems are based on the 1D chaotic maps and the others are based on the 2D chaotic maps. The former has limited efficiency and security due to their limited space of the secret key; consequently the regions that exhibit chaotic behaviors are also limited. This limitation problem is a significant disadvantage in the security field. Therefore the current study proposed a new pseudo random bit generator (BRBG) based on new 2D chaotic logistic maps that run side-by-side and start from random independent initial states. The structure of the proposed model consists of three components: firstly, a mouse device as the non-deterministic input sources, secondly, the proposed 2D chaotic system, and thirdly, an initial permutation (IP) table. The statistical tests of the generated sequences of bits are investigated by applying of NIST, which is the most strict statistical test utilized for specifying of purely random sequences.