Abstract
Information and analytical systems for various purposes are considered, the functioning of which is based on the processing of large multidimensional arrays of information in the conditions of destructive effects of an attacker and environmental disturbances. For such operating conditions, one of the most urgent tasks is the organization of secure data storage with a limited resource of the systems under consideration, ensuring the identity of the data from the operator who sent them for storage and from the decision-maker when requesting their use. A subsystem of data integrity control based on the use of redundant coding is proposed, in which the data to be protected is presented in the form of blocks, pre-grouped according to the criterion of “information value” to ensure the possibility of timeliness and correctness of a decision by the user of the system. The use of redundant coding in the developed subsystem is based on the rules for constructing codes with unequal character protection, which makes it possible to reduce the introduced redundancy of control information at given different levels of security of groups of data blocks processed in information and analytical systems.
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