Stephen L Weeks

US Patent:

7313692, Dec 25, 2007

Filed:

May 21, 2001

Appl. No.:

09/863199

Inventors:

Stephen P. Weeks - Sunnyvale CA, US

Assignee:

Intertrust Technologies Corp. - Sunnyvale CA

International Classification:

H04L 9/00

US Classification:

713156, 713157, 726 2

Abstract:

The present invention provides systems and methods for making efficient trust management decisions. A trust management engine is provided that processes requests for system resources, authorizations or certificates, and the identity of one or more root authorities that are ultimately responsible for granting or denying the requests. To determine whether a request should be granted, the trust management engine identifies a set principals from whom authorization may flow, and interprets each of the certificates as a function of the state of one or more of the principals. The processing logic iteratively evaluates the functions represented by the certificates, updates the states of the principals, and repeats this process until a reliable determination can be made as to whether the request should be granted or denied. The certificates may be evaluated until the state of the root authority indicates that the request should be granted, or until further evaluation of the certificates is ineffective in changing the state of the principals.

US Patent:

7395550, Jul 1, 2008

Filed:

Dec 21, 2006

Appl. No.:

11/614860

Inventors:

Stephen P. Weeks - Sunnyvale CA, US

Assignee:

Intertrust Technologies Corp. - Sunnyvale CA

International Classification:

H04L 9/00

US Classification:

726 10, 713156, 713157, 726 2

Abstract:

The present invention provides systems and methods for making efficient trust management decisions. A trust management engine is provided that processes requests for system resources, authorizations or certificates, and the identity of one or more root authorities that are ultimately responsible for granting or denying the requests. To determine whether a request should be granted, the trust management engine identifies a set principals from whom authorization may flow, and interprets each of the certificates as a function of the state of one or more of the principals. The processing logic iteratively evaluates the functions represented by the certificates, updates the states of the principals, and repeats this process until a reliable determination can be made as to whether the request should be granted or denied. The certificates may be evaluated until the state of the root authority indicates that the request should be granted, or until further evaluation of the certificates is ineffective in changing the state of the principals.

US Patent:

7971055, Jun 28, 2011

Filed:

Jun 26, 2008

Appl. No.:

12/147264

Inventors:

Stephen P. Weeks - Sunnyvale CA, US

Assignee:

Intertrust Technologies Corp. - Sunnyvale CA

International Classification:

H04L 9/00

US Classification:

713156, 713157, 726 2

Abstract:

The present invention provides systems and methods for making efficient trust management decisions. A trust management engine is provided that processes requests for system resources, authorizations or certificates, and the identity of one or more root authorities that are ultimately responsible for granting or denying the requests. To determine whether a request should be granted, the trust management engine identifies a set principals from whom authorization may flow, and interprets each of the certificates as a function of the state of one or more of the principals. The processing logic iteratively evaluates the functions represented by the certificates, updates the states of the principals, and repeats this process until a reliable determination can be made as to whether the request should be granted or denied. The certificates may be evaluated until the state of the root authority indicates that the request should be granted, or until further evaluation of the certificates is ineffective in changing the state of the principals.

US Patent:

8578151, Nov 5, 2013

Filed:

Mar 29, 2011

Appl. No.:

13/074788

Inventors:

Stephen P. Weeks - Sunnyvale CA, US

Assignee:

Intertrust Technologies Corporation - Sunnyvale CA

International Classification:

H04L 29/06

US Classification:

713156, 713175, 713182, 726 1, 726 2, 726 8, 726 21, 380 45, 380277

Abstract:

The present invention provides systems and methods for making efficient trust management decisions. A trust management engine is provided that processes requests for system resources, authorizations or certificates, and the identity of one or more root authorities that are ultimately responsible for granting or denying the requests. To determine whether a request should be granted, the trust management engine identifies a set principals from whom authorization may flow, and interprets each of the certificates as a function of the state of one or more of the principals. The processing logic iteratively evaluates the functions represented by the certificates, updates the states of the principals, and repeats this process until a reliable determination can be made as to whether the request should be granted or denied. The certificates may be evaluated until the state of the root authority indicates that the request should be granted, or until further evaluation of the certificates is ineffective in changing the state of the principals.