EVALUATION OF STATISTICAL PROPERTIES OF ENCRYPTION RESULTS BASED ON INFORMATION-DRIVEN OPERATIONS

The article evaluates the statistical properties of the results of encryption of pseudo-random sequences based on information-driven operations. The importance and significance of the use of pseudo-random sequences for optimizing the structural characteristics of systems (complexes, samples) of weapons and military equipment and their components are shown. It is noted that the period of the pseudo-random sequence should be such that the final sequence of adequate length is periodic. Relatively short non-periodic subsequences should be as indistinguishable as possible from random sequences, in particular, meet various randomness criteria. Based on the implemented software implementation of the information protection method, the generated pseudo-random sequences were tested using the NIST STS test software package. Analysis of the test results allowed us to conclude that the proposed method of cryptographic transformation based on information-driven operations is suitable for use in information resource protection systems. The possibility of using various random initial states or entire sequences in the implementation of cryptographic transformations is considered. It is found that the stability of cryptographic transformation directly depends on the algorithm for generating random numbers and sequences, namely on their degree of randomness. Pseudo-random sequence generators are the most important elements of any security system, the reliability of the latter is largely determined by the properties of the generators used. High-quality pseudo-random sequences, which are inherently deterministic, have almost all the properties of implementations of truly random processes and successfully replace them, since random sequences are extremely difficult to generate.