Secure exchange of sensitive information between different entities is a serious challenge in today’s environment. Therefore, various cryptosystems have been created specifically for this purpose. Various operations are used these cryptosystems. The most common substitution and permutation. substitution-box (S-box), look-up table that takes x bits as input replaces them with y bits, responsible...

We propose the deep-zoom analysis of composition logistic map and tent map, which are well-known discrete one-dimensional chaotic maps. The technique transforms each point a given orbit by removing first k-digits after decimal separator. found that pseudo-random qualities as number generator (PRNG) improve k parameter increases. This was evidenced fact it successfully passed randomness tests ev...