CONCEPTUAL PRINCIPLES OF PROVIDING THE INFORMATION SECURITY OF THE NATIONAL ECONOMY OF UKRAINE IN THE CONDITIONS OF DIGITALIZATION

Since the beginning of the development of digital information processing and management tools, speed (performance) and reliability (fault tolerance) have become of their main characteristics. In this article the research aims at strengthening the national security of the state economic in the information sphere on the basis of ensuring the reliability, confidentiality, integrity and availability of state information resources, information with limited access, including the one that circulating on the objects of financial information infrastructure in the conditions of information and hybrid wars. Modern methods and means of information and communication and digital technologies cannot fully ensure productive and reliable processing of ever-growing arrays of information in the economy. Digitization processes require a significant increase in security and reliability of economic data processing, which is possible through the use of new machine arithmetic, as the existing positional binary number system has shortcomings. In this aspect, the non-positional number system in the residual classes opens wide opportunities for building not only new machine arithmetic, but also a fundamentally new circuit implementation of computer systems, which in turn significantly expands the use of machine arithmetic and is reliable because existing threats are not adapted to non-positional code structures and don't pose any threat to the economic data. This article focused on the issue of reliability, namely: fault tolerance and survivability of computer systems for economic data processing (CSEDP) as one of the criteria for assessing information security, by forming the problem of optimal redundancy in the system of residual classes (SRC).