Database Security
Lipton studied and created database security models on how and when to restrict the queries made by users of a database such that private or secret information will not be leaked. Even when the user is restricted to only read operations on a database, secure information could be at risk. For example, querying a database of campaign donations could allow the user to discover the individual donations to political candidates or organizations. If given access to averages of data and unrestricted query access, a user could exploit the properties of those averages to gain illicit information. These queries are considered to have large "overlap" creating the insecurity. By bounding the "overlap" and number of queries, a secure database can be achieved.
Read more about this topic: Richard J. Lipton
Famous quotes containing the word security:
“We now in the United States have more security guards for the rich than we have police services for the poor districts. If you’re looking for personal security, far better to move to the suburbs than to pay taxes in New York.”
—John Kenneth Galbraith (b. 1908)