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:
Oct. 24, 2000
Filed:
Jul. 01, 1996
Applicant:
Inventors:
Russell Norman Mirov, Los Altos, CA (US);
Gregory Charles Onufer, Sunnyvale, CA (US);
Assignee:
Sun Microsystems, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; H04L / ;
U.S. Cl.
CPC ...
713200 ; 713202 ;
Abstract
An apparatus for firmware authentication and methods of operating the same result in software upgradability to firmware without compromising the integrity of the firmware. The apparatus for firmware authentication of a boot PROM comprises a software programmable data section having a plurality of micro-code. An authentication section having a hash generator configured to generate a data hash in response to the plurality of micro-code programmed in the software programmable data section to authorize execution of the plurality of micro-code of the data section.