History of Protection in Computer Systems
Abstract
This report documents a lecture delivered at the NSA Computer Security Workshop on 19 March 1980. The subject of the lecture was the evolution of information protection features in commercially available general purpose computing systems. The lecture covered features built into both computer hardware and operating systems in an attempt to prevent programs of one user from stealing, modifying, or destroying programs of other users and of the operating system. This report is more than just a script for the lecture. In explaining certain features, it goes into much greater detail than is covered during the actual lecture, especially when presenting those hardware features considered essential to the development of trusted operating systems. This report should be useful to readers interested in the multilevel computer security problem. An appendix is included which provides contextual information about the multilevel security problem and the need for trusted operating systems. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 15, 1980
- Accession Number
- ADA108830
Entities
People
- John D. Tangney
Organizations
- MITRE Corporation