Principles of Data Security

With the greatly increased use of electronic media for processing and storing data, data security became an important practical issue. This is especially true for the extensively shared and distributed systems which are more and more being accepted in commercial operations. Essen­ tially, the problem is that of protecting data, including all the impli­ cations which this has to the end user as well as the systems or database designer. However, usually the term data security refers to protec...