Electronic masking and tagging engine for masking and uniquely signing database content and source codes.

摘要

It proposes an electronic masking and tagging engine for masking and uniquely signing database contents and database source codes, wherein a database source code comprises SQL code and PL-SQL code as the host language. The SQL commands are included in appropriate places in the source code, either through procedure calls or as plain text commands that are translated by a precompiler into host language procedure calls. By means of a loading process, the masking and labeling engine reads plaintext keywords from the source code and generates dynamically, in real time, an encrypted keyword according to the PL / SQL rules. Using the masking and labeling engine, the plaintext keyword is substituted with the encrypted keyword and the entire masked PL / SQL source code is piecewise stored in a relational table, with the encrypted keywords being correctly interpretable by the Oracle PL / SQL Engine.