Nonlinear permutations of a vector space recursively generated over a galois ring of characteristic 4
For any integers r ^ 1 and m ^ 3, some class of nonlinear permutation of a vector space (GF(2 )) is constructed. Every permutation in the class is defined as a composition of two operations: (1) a linear recurring transformation with a characteristic polynomial F(x) over a Galois ring R of cardinality 2 and characteristic 4; and (2) taking the first digit in an element of R represented by a pair of elements from GF(2 ). A necessary and sufficient condition is pointed for F(x) of a certain type in the composition to provide the bijectiveness property of the composition.
Keywords
разрядно-подстановочный многочлен, РП-многочлен, кольцо Галуа, digit-permutable polynomial, DP-polynomial, Galois ringAuthors
Name | Organization | |
Abornev A. V. | abconf.c@gmail.com |
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