A general method for finding the compositional inverses of permutations from the AGW criterion

Tailin Niu, Kangquan Li, Longjiang Qu, Qiang Wang

Permutation polynomials and their compositional inverses have wide applications in cryptography, coding theory, and combinatorial designs. Motivated by several previous results on finding compositional inverses of permutation polynomials of different forms, we propose a unified approach to find these inverses of permutation polynomials constructed by the AGW criterion.

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