Secure direct memory access through system controllers and...

Details Secure direct memory access through system controllers and... Secure direct memory access through system controllers and...

2004-01-13

2008-11-18

Barron, Jr., Gilberto (Department: 2132)

Information security

Access control or authentication

Stand-alone

C713S164000

Reexamination Certificate

active

07454787

ABSTRACT:
A method and system for providing secure, direct access to computer system resources, such as system memory, by a non-trusted processing entity running in an unprivileged state that request access to the resource through a device that directly accesses the resource. The device includes access-right-checking logic and is configured to verify access rights of non-trusted processing entities that attempt to access the resource through the device. By checking access rights, the device ensures that non-trusted processing entities access only those particular portions of the resource authorized for access by the secure kernel.

REFERENCES:
patent: 5444855 (1995-08-01), Thompson
patent: 5659798 (1997-08-01), Blumrich et al.
patent: 5802590 (1998-09-01), Draves
patent: 2003/0188184 (2003-10-01), Strongin et al.

Affiliated with

Also associated with

Rating

Secure direct memory access through system controllers and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Secure direct memory access through system controllers and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secure direct memory access through system controllers and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4028935