Multivariate Permutation Polynomial Systems and Nonlinear Pseudorandom Number Generators

Details Multivariate Permutation Polynomial Systems and Nonlinear Pseudorandom Number Generators Multivariate Permutation Polynomial Systems and Nonlinear Pseudorandom Number Generators

2009-06-21

arxiv.org/abs/0906.3854v5

Mathematics

Number Theory

Finite Fields and their Applications (to appear)

Scientific paper

In this paper we study a class of dynamical systems generated by iterations of multivariate permutation polynomial systems which lead to polynomial growth of the degrees of these iterations. Using these estimates and the same techniques studied previously for inversive generators, we bound exponential sums along the orbits of these dynamical systems and show that they admit much stronger estimates on average over all initial values than in the general case and thus can be of use for pseudorandom number generation.

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