Information Technologies and Computer Engineering

There are defined conditions of relaization of permutation, which are inverse to ones, realized by two-module cascade. It is defined the dependence of the structure (type) of constructive modules of two-module cascade, realizing the inverse permutation on the structure (type) of constructive modules, realizing the direct one. Theoretical results were illustrated with examples. The importance of results obtained lies in provision of theoretical and practice basis for realization of direct and inverse permutations with arbitrary digit capacity using simple logical structures with linear complexity

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