Inversive pseudorandom numbers over Galois rings

  • Authors:
  • Patrick Solé;Dmitrii Zinoviev

  • Affiliations:
  • CNRS-I3S, Les Algorithmes, Euclide B, 2000 route des Lucioles, BP 121, 06 903 Sophia Antipolis, France;CNRS-I3S, Les Algorithmes, Euclide B, 2000 route des Lucioles, BP 121, 06 903 Sophia Antipolis, France and Institute for Problems of Information Transmission, Russian Academy of Sciences, Bol'shoi ...

  • Venue:
  • European Journal of Combinatorics
  • Year:
  • 2009

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Abstract

We provide a new construction of nonlinear pseudorandom number generators. We use the inversive method over Galois rings. This generalizes to the common setting of Galois rings both the works of Niederreiter et al. over finite fields and Eichenauer-Herrmann et al. over integers modulo a prime power. The main proof technique to bound the discrepancy from above is the local Weil bound on hybrid character sums over Galois rings. The estimates hold for the full period and also for certain parts of the period. Elementary p-adic analysis allows us to ensure maximal period length.