Pseudo Random Binary Sequences Obtained Using Novel Chaos Based Key Stream Generator and their Auto-correlation Properties

In this paper, psuedo random binary sequences are generated from the “Chaos Based Key Stream Generator- using novel Permutation technique with two dimensional patterns and substitution Z4 mapping” investigation of auto correlation property for seuwnces is presented. Initially a chaotic function, considering Logistic map used to generate Pseudo Random Numbers (PRNs). Then these numbers converted into mapping. These further modified by permutation techniques defined 2-Dimensional patterns, over transformation in order improve their statistical properties. The resulting investigated properties Normalized Hamming Auto Correlation function. purpose work assessing quality uniformly distributed pseudorandom proposed generator. It found that, exhibit good auto-correlation which suitable key sequence or secret cryptographic applications.