Patent · US Active

System management mode trust establishment for OS level drivers

US9740492B2 · kind B2 · utility

0Cited by

8References

19Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Nicholas J. Adams · Beaverton, US
Vincent J. Zimmer · Federal Way, US
Lee G. Rosenbaum · Portland, US
Giri P. Mudusuru · Portland, US

Key dates

Filing date	Mar 23, 2015
Grant date	Aug 22, 2017
Priority date	—
Expiry date	Mar 23, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/74
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Various embodiments are generally directed to establishing trust in system management mode. An operating system management mode driver can invoke a system management mode and provide a signature to the system management mode to authenticate the driver with. Additionally, a hash value of the driver can be used to determine whether the driver is authorized to invoke system management mode or particular operations or features of system management mode.

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