The synthesis of nonlinear operations for cryptographic transformation
Віра Бабенко, Ольга Григорівна Мельник, Тетяна Анатоліївна Стабецька · Ukrainian Scientific Journal of Information Security · 2014
In this paper we develop rules for the synthesis of nonlinear direct and reverse cryptographic transformation, as well as formalized the model of construction of elementary functions of extended matrix cryptographic transformation. With the use of matrix models describing the operation extended matrix cryptographic transformation, which were synthesized on the basis of various arguments, a general rule of synthesis of additions. The application of these rules provides a synthesis of reverse operations extended matrix cryptographic transformation with any number of additions. With specific examples confirmed the correctness of the application of received rules for the operation of extended matrix cryptographic transformation synthesized on the basis of three substitutions. The application of the rules generates a basic approach to the construction of the expanded matrix operations cryptographic transformation of the information. These results may find practical application in the development of software and hardware for security systems.