Lavdanskyi A. Methods and tools of forming pseudorandom sequences for computer cryptography.

The dissertation is devoted to actual issues of developing new and improving existing methods and tools of forming and testing pseudorandom sequences for computer cryptography. The method of converting a sequence of words in a uniformly distributed one throughout the region of possible values is offered. Combination method for the formation of pseudorandom sequences has been improved by using a set of permutations using the combination with module or multiplexing function. The proposed method for evaluation of autocorrelation function allows to determine statistical deviations by determining statistical properties of the coefficients of autocorrelation of sequence of numbers.