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.

Date of Patent:
Jan. 12, 1999

Filed:

Apr. 16, 1997
Applicant:
Inventors:

Michael F Angelo, Houston, TX (US);

Sompong P Olarig, Cypress, TX (US);

George D Wisecup, Houston, TX (US);

Assignee:

Compaq Computer Corp., Houston, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04K / ;
U.S. Cl.
CPC ...
380 25 ;
Abstract

In a computer system having a receiving computer and a source computer, a method for the remote flashing of the BIOS in the receiving computer including the steps of transferring the flash information from the source computer to the receiving computer, with the flash information including the flash code, the flash code instructions and an encrypted digital signature corresponding to the flash code. The receiving computer is operably placed in a secure mode. A hash value corresponding to the flash information is calculated, and the hash value from the flash information is decrypted. The flash code is validated by comparing the decrypted hash value of the flash information to the calculated hash value, and if validated, the BIOS if flashed with the new flash code.


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