Implementing A New Serial Control As Nonlinear Function for Key Stream Pseudo-Random Number Generator

Abstract

Nonlinear behavior seems to be the rule rather than exception in nature, so the progressing in security and cryptography scope is very wide needed in the world.Problem: Cryptographically, there is potential needs to produce the nonlinear products or to complicate the linear system constrains to be as nonlinear system.Problem Solving:Hence, to solve this problem a new nonlinear scheme for general-purpose pseudorandom number generator (Implementing a New Serial Control as Nonlinear Function for Key Stream Pseudo-Random Number Generator) is presented by this research which comprises two parts; the traditional part, as a combination of LFSR, and a serial part as suggested part comprising a new approach of high complexity performance to meet standard cryptographic criteria.Results: practically, a strong cryptographic key stream pseudo-random number generator was obtained in this research which provides a substantial increase of complex nonlinearities, leads to the best development of randomness statistical property output sequences, passed all statistical tests successfully, and has large linear equivalence to prevent correlation attacks.