Accession Number:

ADA333464

Title:

Design and Assurance Strategy for the NRL Pump

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC CENTER FOR COMPUTER HIGH ASSURANCE SYSTEMS

Report Date:

1997-12-31

Pagination or Media Count:

25.0

Abstract:

Developing a trustworthy system is difficult because the developer must construct a persuasive argument that the system conforms to its critical requirements. This assurance argument, as well as the software and hardware, must be evaluated by an independent certification team. In this paper, we present the external requirements and logical design of a specific trusted device, the NRL Pump, and describe our plan, called the assurance strategy, to create the eventual assurance argument. Our assurance strategy exploits currently available graphical specification, simulation, formal proof, and testing coverage analysis tools. Portions of the design are represented by figures generated by the Statement tool set, and we discuss how those tools, and covert channel analysis, will be used to show that the logical design conforms to its external requirements. We conclude with some remarks on a possible physical architecture.

Subject Categories:

  • Pumps, Filters, Pipes, Tubing, Fittings and Valves

Distribution Statement:

APPROVED FOR PUBLIC RELEASE