The need for secure computer systems has been identified in many areas of DoD operations, but in the past these systems have not been built in a secure manner because a secure operating system on which to run has not existed. Now that verifiably secure minicomputer operating systems are becoming a reality, applications for secure systems are becoming more clearly thought-out, designed and implemented. This paper surveys some proposed DoD and non-DoD secure computer applications.

Applications for multilevel secure operating systems

Database security—System architectures

This paper surveys some aspects of data base security, with emphasis on basic priciples and ways to express security requirements, Security policies and theoretical models are considered in detail, and the models are used to compare the security features of some date base management systems.

Data base security: requirements, policies, and models

: A secure data management system that achieves a multilevel capability for building and accessing relations has been implemented to run on the Secure UNIX Operating System for the DEC PDP-11/45 The secure DMS is an adaptation of INGRES This paper addresses the effect of multilevel security on the design of the INGRES data base system and its user interface, including implementation details and an evaluation of the system

http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA056902&Location=U2&doc=GetTRDoc.pdf

Implementation of a Secure Data Management System for the Secure UNIX Operating System

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Implementation of a Secure Data Management System for the Secure UNIX Operating System