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arXiv · 1510.03983

Piecewise constructions of inverses of cyclotomic mapping permutation polynomials

Yanbin Zheng·Yuyin Yu·Yuanping Zhang·Dingyi Pei
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Abstract

Given a permutation polynomial of a large finite field, finding its inverse is usually a hard problem. Based on a piecewise interpolation formula, we construct the inverses of cyclotomic mapping permutation polynomials of arbitrary finite fields.

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Yanbin Zheng, Yuyin Yu, Yuanping Zhang, Dingyi Pei. 2018-12-19. Piecewise constructions of inverses of cyclotomic mapping permutation polynomials. https://doi.org/10.1016/j.ffa.2016.02.005

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