METHOD OF PROTECTING RELATIONAL DATABASE DESCRIPTORS Russian patent published in 2022 - IPC G06F12/14 G06F21/60 

FIELD: physics.

SUBSTANCE: invention relates to a method of protecting relational database descriptors. Method consists in the fact that a table of control values is created in the base, in which two columns are created for each protected table: in the first column, tuples of two elements are stored: a hash sum of values of security descriptors in a table row and their bitwise sum; second column stores hash sums of values of descriptors in columns of the protected table. Application of this method affects only one table from a certain set of tables, and not the entire database as a whole, which allows not to waste information resources on tables that do not contain access identifiers, as well as perform resource-intensive operations for implementation, detection, localization and analysis of integrity in parallel computational threads.

EFFECT: high data integrity of relational database tables containing security descriptors by introducing a hashing function designed to generate cryptographic checksums, due to which there is a possibility of detection and localization of unauthorized changed data block of some table, and operation of bitwise addition, due to which it becomes possible to restore original data of unauthorized changed unit without access to remote network data storage.

1 cl, 8 dwg