A chaotic keystream generation for stream cipher

Abstract

The current article presents two chaotic pseudorandom number generators CPRNG for keystream. Statistical analysis with several high-speed stream ciphers showed that our proposed algorithms have comparable results with them. In addition, our two CPRNGs showed a good degree of randomization based on NIST statistical test suites, quasi-ideal entropy, good keystream distribution, and good sensitivity to initial conditions, indicating resistance to differential attacks.