Development of Reliable and Effective Methods of Cryptographic Protection of Information Based on the Finite Automata Theory

Abstract

This paper describes project to conduct study of cryptographic protection of information on publications in publications and development of methods for reliable and efficient cryptographic protection of information based on finite automaton models-FAM, preparation of additions to standards and management of dissertations of undergraduates and doctoral students on information security and information protection. To achieve this goal, following tasks will be solved: 1. Study of mathematical foundations of cryptology and analysis of standards for cryptographi. Results: Theory of finite fields, models of FA, descriptions of requirements of standards, proposals to standards. 2. Study of applicability of various FA models in construction of reliable and efficient cryptoalgorithms. Results: Algorithm for obtaining an inverse FA from given FAproving applicability of FA in cryptosystem, algorithm for composing several FA -proving increase in reliability of cryptosystem using composite FA with increased number of states, algorithm for constructing equivalent FAproving increase in efficiency of cryptosystems using equivalent FA with reduced number of states. 3. Development and verification of programs for reliable and efficient cryptosystem based on KA. Results: FA cryptographic programs and their applications in steganography, verification and testing protocols for developed programs.