The Naval Postgraduate School SECURE ARCHIVAL STORAGE SYSTEM. Part II. Segment and Process Management Implementation.
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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The security kernel technology has provided the technical foundation for highly reliable protection of computerized information. However, the operating system implementations face two significant challenges providing 1 adequate computational resources for applications tasks, and 2 a clean, straightforward structure whose correctness can be easily reviewed. This paper presents the experience on an ongoing security kernel implementation using the Advanced Micro Devices 4116 single-board computer based on the Z8002 microprocessor. The performance issues of process switching, domain changing, and multiprocessor bus contention are explicitly addressed. The strictly hierarchical i.e., loop-free structure provides a series of increasingly capable, separately usable operating system subsets. Security enforcement is structured in two layers the basic kernel rigorously enforces a non-discretionary viz., lattice model policy, while an upper layer provides the access refinements for a discretionary policy. Author
- Computer Programming and Software
- Computer Hardware
- Computer Systems