Accession Number:
ADA465048
Title:
Covert Channels - Here to Stay
Descriptive Note:
Conference paper
Corporate Author:
NAVAL RESEARCH LAB WASHINGTON DC INFORMATION TECHNOLOGY DIV
Personal Author(s):
Report Date:
1994-07-07
Pagination or Media Count:
11.0
Abstract:
We discuss the difficulties of satisfying high-assurance system requirements without sacrificing system capabilities. To alleviate this problem, we show how trade-offs can be made to reduce the threat of covert channels. We also clarify certain concepts in the theory of covert channels. Traditionally, a covert channels vulnerability was measured by the capacity. We show why a capacity analysis alone is not sufficient to evaluate the vulnerability and introduce a new metric referred to as the small message criterion.
Descriptors:
Subject Categories:
- Computer Systems Management and Standards