Thomas W Christoffel

US Patent:

7042988, May 9, 2006

Filed:

Sep 27, 2002

Appl. No.:

10/259248

Inventors:

David Juitt - Arlington MA, US
Philip Bates - London, GB
Thomas Christoffel - Concord MA, US
Geoffrey Crawshaw - Needham MA, US
David Crosbie - Somerville MA, US

Assignee:

Bluesocket, Inc. - Burlington MA

International Classification:

H04M 1/64

US Classification:

379 8817, 370329, 455411, 4554563, 726 12

Abstract:

The present invention can be used to facilitate the integration of wireless capability provided by wireless access points into an enterprise computer network. A gateway server is interposed between wireless access points and protected networks to provide security and integration functions, for example, authentication, access control, link privacy, link integrity, and bandwidth metering in various embodiments. Use of such a gateway server allows substantial control to be gained over network access even with the use of relatively simple access points. In general, such a gateway server receives a request to access the protected network. An authentication subsystem of the gateway server authenticates the user, preferably by accessing an external authentication server and returns a role to the authenticated user. An access controller in the gateway server provides differential access to the protected network based on the user's assigned role. A multiple gateway servers can be connected together to form a mesh network architecture.

US Patent:

7493486, Feb 17, 2009

Filed:

Jun 9, 2000

Appl. No.:

09/591708

Inventors:

Stuart J. Jacobs - Hudson MA, US
Thomas William Christoffel - Concord MA, US
Scott Andrew Belgard - Randolph MA, US

Assignee:

Verizon Laboratories, Inc. - Waltham MA

International Classification:

H04L 9/00

US Classification:

713153, 726 16, 380 30

Abstract:

In a node () communicating with other nodes in a network (), a system and method for performing cryptographic-related functions is provided. The node () receives and transmits inputs and outputs requiring cryptographic-related processing. When cryptographic processing is required, the node () transmits a predefined message to a cryptographic processing component in the node () that then performs the desired cryptographic-related processing.

US Patent:

20020136226, Sep 26, 2002

Filed:

Jan 23, 2002

Appl. No.:

10/055028

Inventors:

Thomas Christoffel - Concord MA, US
David Juitt - Arlington MA, US
Geoff Crawshaw - Needham MA, US
David Crosbie - Somerville MA, US

Assignee:

Bluesocket, Inc. - Burlington MA

International Classification:

H04L012/28
H04J001/16

US Classification:

370/401000, 370/230000

Abstract:

A mobile device roams between homogenous or heterogenous wireless networks while maintaining a communication connection with a home network server for the mobile device. A gateway system for a wireless local area network (WLAN) includes gateway servers and manages roaming of a mobile device between homogenous wireless networks. The gateway system maintains a secure connection to a home gateway server for the mobile device while the mobile device roams between homogenous WLAN's. A network gateway manages roaming of a mobile device between heterogenous network systems. The network gateway obtains an access identifier from another heterogenous network system so the mobile device can roam to the other heterogenous network system while maintaining its connection to the home network gateway for the mobile device.

US Patent:

20060234678, Oct 19, 2006

Filed:

Mar 8, 2006

Appl. No.:

11/370586

Inventors:

David Juitt - Arlington MA, US
Philip Bates - London, GB
Thomas Christoffel - Concord MA, US
Geoffrey Crawshaw - Needham MA, US
David Crosbie - Somerville MA, US

Assignee:

Bluesocket, Inc. - Burlington MA

International Classification:

H04M 1/66

US Classification:

455411000

Abstract:

The present invention can be used to facilitate the integration of wireless capability provided by wireless access points into an enterprise computer network. A gateway server is interposed between wireless access points and protected networks to provide security and integration functions, for example, authentication, access control, link privacy, link integrity, and bandwidth metering in various embodiments. Use of such a gateway server allows substantial control to be gained over network access even with the use of relatively simple access points. In general, such a gateway server receives a request to access the protected network. An authentication subsystem of the gateway server authenticates the user, preferably by accessing an external authentication server and returns a role to the authenticated user. An access controller in the gateway server provides differential access to the protected network based on the user's assigned role. A multiple gateway servers can be connected together to form a mesh network architecture.

US Patent:

20090138702, May 28, 2009

Filed:

Jan 22, 2009

Appl. No.:

12/357749

Inventors:

Stuart J. JACOBS - Hudson MA, US
Thomas William CHRISTOFFEL - Concord MA, US
Scott Andrew BELGARD - Randolph MA, US

Assignee:

VERIZON LABORATORIES, INC. - Waltham MA

International Classification:

H04L 9/00

US Classification:

713153

Abstract:

In a node () communicating with other nodes in a network (), a system and method for performing cryptographic-related functions is provided. The node () receives and transmits inputs and outputs requiring cryptographic-related processing. When cryptographic processing is required, the node () transmits a predefined message to a cryptographic processing component in the node () that then performs the desired cryptographic-related processing.