In this paper was classificated direct and inverse elementary functions of expanded matrix cryptographic transformation, formalized rules for obtaining the forward and reverse elementary functions, and formulated a general expression for the getting of elementary function of the extended matrix of cryptographic transformation of information. The studies allow modeling of elementary functions expanded matrix cryptographic transformation of information of different digits.
protection of information, cryptographic transformation of information, expanded matrix transformation, an elementary function
"Modeliuvannia dyskretnykh elementarnykh funktsii dlia kryptohrafichnoho peretvorennia" [Modeling of discrete elementary functions for cryptographic transformation],
Science and Technology of the Air Force of Ukraine,