КРИПТОГРАФИЧЕСКИЕ МЕХАНИЗМЫ ЗАЩИЩЕННОГО ВЗАИМОДЕЙСТВИЯ КОНТРОЛЬНЫХ И ИЗМЕРИТЕЛЬНЫХ УСТРОЙСТВ
The paper describes the key features of the cryptographic protocol providing secure interaction between control and measuring devices. The hierarchical structure underlying this protocol and the relationship between the transport and session levels of the ISO model, to which different stages of message processing are linked are described. The security of the protocol is based on the use of the standardized domestic cryptographic algorithms and mechanisms that ensure the authentication and integrity of transferred data. The protocol supports different options for establishing a connection, depending on used authentication method and technical capabilities of the devices. The protocol was developed in accordance with the recommendations of the national system of standardization of the Russian Federation on the principles of development and modernization of encryption (cryptographic) means of information protection, and is designed as recommendations on standardization in 2020. In this paper a number of the certain properties of safety identical to tasks which are put by the infringer at attempt of compromise of work of the protocol and necessary for substantiation of cryptographic stability of considered mechanisms are formulated. Feasibility of the considered properties of safety, based on various mechanisms embedded in structural elements and logic of the protocol, and on complexity of compromise of the standardized domestic cryptographic solutions is shown.