JEFFREY D MARSHALL
Engineers in Herndon, VA

License number
Virginia 0402018231
Issued Date
Feb 23, 1988
Expiration Date
Feb 28, 2018
Category
Professional Engineer License
Type
Professional Engineer
Address
Address
Herndon, VA

Professional information

Jeffrey Marshall Photo 1

System And Method That Uses Cryptographic Certificates To Define Groups Of Entities

US Patent:
2013015, Jun 20, 2013
Filed:
Jan 24, 2013
Appl. No.:
13/749175
Inventors:
Jeffrey Grant Marshall - Herndon VA, US
Jeffrey William Chilton - Reston VA, US
Assignee:
Objective Interface Systems, Inc. - Herndon VA
International Classification:
G06F 21/60
US Classification:
713189
Abstract:
A system and method for issuing a cryptographic certificate comprises describing one or more prerequisite condition on the cryptographic certificate. The one or more prerequisite conditions comprise membership in one or more prerequisite group of entities. An entity may be a participant, a resource or a privilege, etc. One or more target groups of entities may be named on the cryptographic certificate. One or more prerequisite group stakeholder that authorizes an entity in the one or more prerequisite group of entities to be added as members in another group of entities sign the cryptographic certificate. The cryptographic certificate may also be signed by one or more target group stakeholders that authorizes an entity to be added as a member of the one or more target groups. Exemplary prerequisite conditions relate to one or more of a membership in another group of entities, a physical characteristic, a temporal characteristic, a location characteristic or a position characteristic, among others.


Jeffrey Marshall Photo 2

System And Method That Uses Cryptographic Certificates To Define Groups Of Entities

US Patent:
8380981, Feb 19, 2013
Filed:
May 16, 2008
Appl. No.:
12/122352
Inventors:
Reynolds William Beckwith - Great Falls VA, US
Jeffrey Grant Marshall - Herndon VA, US
Jeffrey William Chilton - Reston VA, US
Assignee:
Objective Interface Systems, Inc. - Herndon VA
International Classification:
H04L 29/06
US Classification:
713156, 713150, 713155, 713168, 713176, 726 2, 726 3, 726 4, 726 10, 709220, 709223, 709224, 709225, 709226
Abstract:
A system and method for issuing a cryptographic certificate includes describing one or more prerequisite condition on the cryptographic certificate. The one or more prerequisite conditions comprise membership in one or more prerequisite group of entities. An entity may be a participant, a resource or a privilege, etc. The present invention also requires naming one or more target groups of entities on the cryptographic certificate. One or more prerequisite group stakeholder that authorizes an entity in the one or more prerequisite group of entities to be added as members in another group of entities sign the cryptographic certificate. The cryptographic certificate is also signed by one or more target group stakeholders that authorizes an entity to be added as a member of the one or more target groups. Exemplary prerequisite conditions relate to one or more of a membership in another group of entities, a physical characteristic, a temporal characteristic, a location characteristic or a position characteristic, among others.


Jeffrey Marshall Photo 3

System And Method For Accessing Information Resources Using Cryptographic Authorization Permits

US Patent:
2013025, Sep 26, 2013
Filed:
May 13, 2013
Appl. No.:
13/893123
Inventors:
Reynolds William Beckwith - Great Falls VA, US
Jeffrey Grant Marshall - Herndon VA, US
Jeffrey William Chilton - Reston VA, US
Assignee:
Objective Interface Systems, Inc. - Herndon VA
International Classification:
H04L 9/32
US Classification:
713167
Abstract:
A system and method for securing information associates a party with a node that communicates messages over one or more channels based on a channel access privilege. One or more authorities sign a cryptographic authorization permit (CAP) to authorize the channel access privilege, which can be a write privilege or a read privilege. In one embodiment, the authorization for the channel access privilege is based on a public key issued by an authority and the CAP comprises a cryptographic certificate digitally signed by the authority.


Jeffrey Marshall Photo 4

System And Method For Accessing Information Resources Using Cryptographic Authorization Permits

US Patent:
8443191, May 14, 2013
Filed:
Apr 9, 2007
Appl. No.:
11/783359
Inventors:
Reynolds Wiliam Beckwith - Great Falls VA, US
Jeffrey Grant Marshall - Herndon VA, US
Jeffrey William Chilton - Reston VA, US
Assignee:
Objective Interface Systems, Inc. - Herndon VA
International Classification:
H04L 9/32, G06F 21/00
US Classification:
713167, 726 17, 713189
Abstract:
A system and method for securing information associates a party with a node that communicates messages over one or more channels based on a channel access privilege. One or more authorities sign a cryptographic authorization permit (CAP) to authorize the channel access privilege, which can be a write privilege or a read privilege. In one embodiment, the authorization for the channel access privilege is based on a public key issued by an authority and the CAP comprises a cryptographic certificate digitally signed by the authority.