Patent · US Expired

Verification of trusted-path commands

US7036022B1 · kind B1 · utility

2Cited by

40References

17Claims

0Family size

Assignee

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

Mary Ellen Zurko · Groton, US
Thomas Andrew Casey, Jr. · Westwood, US
Morrie Gasser · Hopkinton, US
Judith Shelhorse Hall · Sudbury, US
Clifford E. Kahn · Framingham, US
Andrew H. Mason · Hollis, US
Paul Douglas Sawyer · Billerica, US
Leslie Richard Kendall · Gloucester, US
Steven B. Lipner · Oakton, US

Key dates

Filing date	Feb 29, 2000
Grant date	Apr 25, 2006
Priority date	—
Expiry date	Feb 29, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG06F2211/009
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for executing trusted commands, in which a trusted command is first received from a user at a user terminal and parsed by untrusted code; then passed to a trusted computing base for execution. The trusted computing base displays some indication of what is to be done back to the user for confirmation. Confirmation of the commands prevents unauthorized modification of the commands and increases system confidence. A randomly (or pseudo-randomly) generated process identifier is employed to verify the existence of a trusted path.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.