CELL-BASED SECURITY REPRESENTATION FOR DATA ACCESS Russian patent published in 2013 - IPC G06F21/62 G06F21/30 

FIELD: information technology.

SUBSTANCE: computer-implemented data security system, having a memory device storing computer-executed components which include: a definition component for defining cell level security attributes for cells of a data table, having rows and columns, wherein cell level security attributes for a cell located in a row, having one or more other cells, and in a column, having one or more other cells, may be defined to block access to data of that cell, but grant access to data of other cells in that row and data of other cells in that column; a storage component for storing cell level security attributes as security metadata, and a security component for applying the security metadata to results of a query from a user to return filtered results based on said user, and a processor for executing said computer-executed components stored in memory.

EFFECT: providing selective restriction of access to data.

20 cl, 10 dwg