System V/MLS Labeling and Mandatory Policy Alternatives
Charles W. Flink, Jonathan D. Weiss · AT&T Technical Journal · 1988
System V/MLS is a product based on the UNIX® operating system, developed within AT&T Federal Systems Division to address National Computer Security Center (NCSC) requirements at the B level. This paper describes the alternatives that were analyzed in designing and implementing labeling and mandatory access control features to provide security, flexibility, and ease of use within a UNIX System V-compatible framework.