The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2003
Filed:
Feb. 13, 1990
Mary Ellen Zurko, Groton, MA (US);
Thomas Andrew Casey, Jr., Westwood, MA (US);
Morrie Gasser, Saugus, MA (US);
Judith Shelhorse Hall, Sudbury, MA (US);
Clifford Earl Kahn, Framingham, MA (US);
Andrew Halstead Mason, Hollis, NH (US);
Paul Douglas Sawyer, Billerica, MA (US);
Leslie Richard Kendall, Glouchester, MA (US);
Steven B. Lipner, Wellesley, MA (US);
Compaq Information Technologies Group, L.P., Houston, TX (US);
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 to the user for confirmation indication of what is to be done. 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.