On the Linear Complexity Profile of Nonlinear Congruential Pseudorandom Number Generators with Dickson Polynomials

  • Authors:
  • Hassan Aly;Arne Winterhof

  • Affiliations:
  • Department of Mathematics, Faculty of Science, Cairo University, Giza, Egypt;Johann Radon Institute of Computational and Applied Mathematics (RICAM), Austrian Academy of Sciences, Linz, Austria 4040

  • Venue:
  • Designs, Codes and Cryptography
  • Year:
  • 2006

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Abstract

Linear complexity and linear complexity profile are important characteristics of a sequence for applications in cryptography and Monte-Carlo methods.The nonlinear congruential method is an attractive alternative to the classical linear congruential method for pseudorandom number generation.Recently, a weak lower bound on the linear complexity profile of a general nonlinear congruential pseudorandom number generator was proven by Gutierrez, Shparlinski and the first author. For most nonlinear generators a much stronger lower bound is expected.Here, we obtain a much stronger lower bound on the linear complexity profile of nonlinear congruential pseudorandom number generators with Dickson polynomials.