Abstract

We propose a three phase life cycle model for the development of trusted embedded computer systems. We call the middle phase System Build. First, we propose a definition for embedded systems and distinguish them from traditional multi-purpose computer systems. We summarize the traditional life cycle model, with its development and operational phases, and point out its problems of flexibility and performance for embedded computer systems. Then we introduce the three phase life-cycle model. We describe how the System Build phase allows per-mission software and security configuration and checks security policy offline, thereby allowing a speedup of runtime rights checking, thereby providing increased flexibility and performance.

Date

March 7, 1990

Authors

TC Vickers Benzel, MM Bernstein, RJ Feiertag

Journal

13th National Computer Security Conference: Omni Shoreham Hotel, Washington, DC 1-4 October, 1990: Proceedings:" Information Systems Security, Standards-the Key to the Future"

Volume

1

Pages

172

Publisher

The Institute