Abstract:
Most modern database management systems (DBMS) provide the
ability to restrict user access to database objects. The problems of restricting
access to individual records are arising increasingly in connection with the
growing need for flexibility in restricting access in modern databases, including
when using them to store information classified as state or commercial secrets.
Currently, these tasks are solved individually, and there are no commonly
formalized approaches to designing such access restrictions. The study aims to
reduce the design time for database schemes when it is necessary to restrict access
to individual records of the database tables and improve the quality of the
designed schemes by using the proposed algorithms. Questions about the design
of the protected databases with the use of access restrictions to separate records
are considered. Both restriction of illegal access to records, and granting false
camouflage information instead of required is considered. The proposed software
package will consist of 2 main parts: a database and a client application. To
differentiate access, the study proposed the use of a record-protecting lock.
