METHOD FOR ENSURING INTEGRITY AND AVAILABILITY OF INFORMATION IN DISTRIBUTED DATA STORAGE SYSTEMS Russian patent published in 2024 - IPC G06F11/08 

FIELD: computer technology.

SUBSTANCE: invention is aimed at ensuring the integrity and availability of information processed in distributed data storage systems under conditions of destructive influences of an attacker or disturbances in the operating environment. It is achieved by the fact that a set of ciphertext information blocks distributed among data storage nodes allows for complete recovery of lost data files in the event of a failure of one or more data storage nodes of the group. An inaccessible node can be replaced by another node, and the available nodes, together with the introduced new node, perform the procedure of generating a plurality of ciphertext and redundant data information blocks and redistributing the generated information. The method can be implemented using a Lagrange interpolation polynomial on a localization specified with respect to a finite Galois field, implementing an expansion procedure to generate redundant blocks of error detection and correction code together with a suitable algorithm for additional distribution of information blocks.

EFFECT: ensuring the integrity and availability of information processed in distributed data storage systems under conditions of destructive influences of an attacker or disturbances in the operating environment.

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