Pattern-Directed Protection Valuation
UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY INFORMATION SCIENCES INST
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Because of the urgent security requirements in many existing general- purpose operating systems, the large investment committed to such systems, and the large number of protection errors embedded in them, the problem of finding such errors is one of major importance. This report presents an approach to this task, based on the premise that the effectiveness of error searches can be greatly increased by techniques that use patterns, i.e., formalized descriptions of error types. It gives a conceptual overview of the pattern- directed evaluation process and reports the authors initial experience in formulating patterns from the analysis of protection errors previously detected in various systems, as well as in applying the pattern-directed technique.
- Computer Programming and Software