Hardened extensible firmware framework

Details Hardened extensible firmware framework Hardened extensible firmware framework

2007-08-21

2007-08-21

Zand, Kambiz (Department: 2134)

Information security

Prevention of unauthorized use of data including prevention...

Access control

C705S018000, C713S187000, C714S763000, C714S764000, C714S765000, C714S766000, C714S767000, C726S026000, C380S200000, C380S201000, C380S202000

Reexamination Certificate

active

10120865

ABSTRACT:
A method for hardening an extensible firmware framework and system in which the framework is implemented. In accordance with the method, a resource access policy that defines rules to allow or disallow access to designated system resources, such as memory and I/O, is defined. During execution of firmware-based event handlers, event handler code may seek to access a designated system resource. In response thereto, access to the system resource may be determined based on a security status of a firmware-based event handler in consideration of any applicable rules defined by the resource access policy. For example, a resource access policy may allow only secure event handlers to access selected portions of memory, while preventing non-secure event handlers from accessing the same. In this manner, errant and malicious event handlers are prevented from damaging critical resources.

REFERENCES:
patent: 5109329 (1992-04-01), Strelioff
patent: 5671422 (1997-09-01), Datta
patent: 5737579 (1998-04-01), Kimura et al.
patent: 5949882 (1999-09-01), Angelo
patent: 6032256 (2000-02-01), Bernard
patent: 6088804 (2000-07-01), Hill et al.
patent: 6193422 (2001-02-01), Belt et al.
patent: 6453278 (2002-09-01), Favor et al.
patent: 199 46 959 (2001-04-01), None
patent: 0 924 610 (1999-06-01), None
patent: 0 924 610 (1999-06-01), None
patent: PCT/US 02/14776 (2002-09-01), None
patent: PCT/US 02/14776 (2003-09-01), None
Intel Corporation, “IS-64 System Abstraction Layer Specification,” On Line Manual, Jan. 2000, XP002253057.
Intel Corporation, “Ingtel Architecture Software Developer's Manual-Chapter 11,” On Line Manual, Jul. 2000, XP002253058.
Intel Corporation, “Extensible Firmware Interface Specification-version 1.05 Chapters 1, 16, 17,” On Line Specification, Dec. 12, 2000, XP002253059.

Affiliated with

Also associated with

Rating

Hardened extensible firmware framework does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hardened extensible firmware framework, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hardened extensible firmware framework will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3898501