DEVELOPMENT OF A METHOD FOR CONSTRUCTING A MODULAR COMPOSITE CODE FOR A NOISE-PROOF SATELLITE AUTHENTICATION SYSTEM

Abstract

At the present stage of development, in order to ensure the fulfillment of various kinds of tasks of national importance, systems based on groups of low-orbit communication spacecraft are increasingly being used. An example of such satellite systems is the Gonets Satellite System JSC, which provides mobile satellite channels for mobile and stationary subscribers anywhere in the world and is being developed by order of the Roskosmos state corporation for comic activities. Therefore, in view of the importance and in some cases the confidentiality of the tasks performed, the requirements for stealth and noise immunity for these systems are increasing. Increasing secrecy, namely, its information component, is possible through the use of an authentication protocol based on evidence with zero knowledge disclosure, which operates on the basis of modular codes. However, the modular codes in some systems are also used to combat equipment failures and malfunctions, and when introducing more redundancy, they are also able to localize errors caused by interference in the communication channel. Thus, using modular codes to ensure stealth, to combat failures and malfunctions, as well as to provide noise immunity, it will allow you to switch to a single mathematical apparatus for constructing the system and thereby move away from the traditionally used cascade codes. Therefore, the task of developing a new method for constructing a modular composite code to ensure noise immunity is relevant.