Veretelnyk V. Methods for improving the speed and reliability of access to confidential information resources

The object of study - the processes of information security, which are stored, processed and transmitted to the computer systems and networks. The purpose of research - improving the speed and reliability of access to confidential information resources through the introduction of information and hardware redundancy. Advancing scientific and technical basis of design security systems, based on the combined processes of error-correcting coding and cryptography. Algorithms and mathematical models of the functioning of cryptographic devices encoding, decoding, and transcoding, based on specific logical functions and chetvirkovoi binary number system with a fixed number of units. Built generator congruent numbers, which provides a solution to many practical problems, including the formation of teams of cryptographic transformation of data. Develop functional and structural schemes that implement the proposed method and together provide increased speed and reliability of access to confidential information resources by 25%. Developed a method of encryption (encoding, decoding, and transcoding) with the introduction of information redundancy based dvohrozryadnih logic functions and binary-quaternary number system with a fixed number of units, thus reducing the time to access information by combining the processes of error-correcting coding and cryptography, as well as to simplify the functional circuit devices. A model of the process of improving the speed and reliability of access to confidential information resources that will inform the task of the research. An improved method for increasing the speed and reliability of access to confidential information resources through the use of stochastic generators of pseudorandom numbers with specified requirements and aligning processes with the introduction of cryptographic encryption of information redundancy, which enabled the design and development of software and hardware of practical application. Was further developed a method for constructing pseudo-random number generators to generate uniformly distributed uncorrelated sequence of numbers with the specified requirements by combining the generator congruent numbers and stochastic finite state machine, ensuring the formation of pseudo-random sequences with specified requirements. Obtained in the thesis theoretical and practical results are used and implemented at the state enterprise "Scientific and Production Complex" photodevice "(Cherkassy). In Cherkassy State Technological University in the department of computer systems in a series of laboratory work. As a limited liability paint factory" AURORA "(Cherkassy)