Patent · US Active

Platform firmware armoring technology

US9092632B2 · kind B2 · utility

4Cited by

0References

20Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Allen R. Wishman · Cornelius, US
Sergiu D. Ghetie · Hillsboro, US
Michael Neve de Mevergnies · Beaverton, US
Ulhas Warrier · Beaverton, US
Adil Karrar · Santa Clara, US
Douglas R. Moran · Folsom, US
Kirk D. Brannock · Olympia, US

Key dates

Filing date	Mar 15, 2013
Grant date	Jul 28, 2015
Priority date	—
Expiry date	Mar 15, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/2137
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method, apparatus, machine-readable medium, and system are disclosed. In one embodiment the method includes a processor. The processor includes switching a platform firmware update mechanism located in a computer platform to a platform firmware armoring technology (PFAT) mode on a boot of the computer platform. The computer platform includes a platform firmware storage location that stores a platform firmware. The method then persistently locks the platform firmware storage location in response to the platform firmware update mechanism switching to the PFAT mode. When persistently locked, writes are only allowed to the platform firmware storage location by an Authenticated Code Module in the running platform and only after a platform firmware update mechanism unlocking procedure.

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