Atul N Sharma

7434047, Oct 7, 2008

Dec 30, 2004

11/027274

Atul Sharma - Westford MA, US

Nokia, Inc. - Irving TX

H04L 9/08
H04L 9/32

713163, 380279

A system for multicasting a data packet in a multicast group includes a network entity, and a plurality of members of the multicast group. A member can notify the network entity of a rogue member of the group claiming an identity of a spoofed member of the group. In response to being notified, the network entity can distribute, to at least the members of the group other than the spoofed member, different versions of a symmetric key associated with the spoofed member. The member notifying the network entity of the rogue member can then receive a next data packet and a code for the next data packet, the code having been generated at the rogue member using a version of the symmetric key associated with the spoofed member such that the rogue member can be identified based upon the version of the symmetric key.

20040001497, Jan 1, 2004

Jun 27, 2002

10/180081

Atul Sharma - Norwood MA, US

Nokia, Inc. - Irving TX

H04L012/28
H04L012/56

370/401000, 709/238000

Systems and methods are provided for routing packets on a network based on interface information of a routing gateway or a neighboring gateway. One embodiment includes updating a routing table using interface information shared by a neighboring router. Another embodiment includes making routing decisions based on interface information from a neighboring router. A further embodiment includes making routing decisions based on priorities determined from interface information. Another embodiment includes the steps of updating a routing table on a first gateway, which includes the steps of receiving data disclosing interface information on a neighboring second gateway, and updating a routing table based on the interface information. The interface information for the neighboring second gateway includes identification of communication interfaces on the second gateway, an interface type for each of the interfaces, and a physical type interface on which each virtual type interface is overlaid.

20040210892, Oct 21, 2004

Dec 18, 2003

10/742132

Atul Sharma - Westford MA, US

Nokia Inc. - Irving TX

G06F009/44

717/168000, 717/171000

Systems and methods are provided for routing packets on a network based on information of a routing gateway or a neighboring gateway. One embodiment includes updating a routing table using interface information shared by a neighboring router. Another embodiment includes making routing decisions based on interface information from a neighboring router. Another embodiment includes making routing decisions based on priorities determined from interface information. Another embodiment updating a routing table on a first gateway by receiving data disclosing interface information on a neighboring second gateway and updating a routing table based on the interface information. Another embodiment includes maintaining a routing table on the first gateway that includes, for each route, information on the gateway that is two physical hops away from the first gateway. For each route, if the gateway that is two physical hops away from the first gateway is the first gateway, the route is made inactive.

20050129236, Jun 16, 2005

Dec 15, 2003

10/737595

Atul Sharma - Westford MA, US

Nokia, Inc. - Irving TX

H04L009/00

380259000

A method and apparatus for data source authentication in multicast communications is provided. Multicasting a packet may be divided into two actions. The first action includes unicasting the packet from a sending member to a group controller. The second action includes multicasting the packet from the group controller to the multicast group. The packet may be unicast to the group controller with a message authentication code (MAC) that may be generated by encrypting the packet with a symmetric key that is intended to be known only to the sending member and the group controller. After authenticating the MAC, the group controller multicasts the packet to the multicast group. The group controller includes with the packet a separate MAC for substantially each receiving member of the multicast group, each encrypted by a separate symmetric key. Each symmetric key may be intended to be known only by the receiving member and the group controller.

20060005007, Jan 5, 2006

Jun 14, 2004

10/867150

Atul Sharma - Westford MA, US

Nokia Corporation - Espoo

H04L 9/00

713153000

A system is provided for multicasting a data packet in a multicast group. The system includes a source member and a plurality of destination members. The source member is capable of generating a code for the data packet using a symmetric key associated with the source member, and thereafter multicasting the data packet and the code. Each of the destination members is capable of receiving the data packet and the code. The destination member can then multicast a recall packet to the members of the multicast group when the destination member determines that the source member claims an identity of the respective destination member (i.e., spoofs the identity of the respective destination member). Otherwise, the destination member is capable of authenticating the source member based upon the code.

20100221174, Sep 2, 2010

Sep 8, 2009

12/555336

Lawrence CLAWSON - Dover MA, US
Michael Leshchiner - Needham MA, US
Darryl Pollica - Melrose MA, US
Atul Sharma - Billerica MA, US

C01B 3/24
F02B 43/00

423650, 123 3

This disclosure related to systems and methods that produce hydrogen and electricity from hydrocarbon fuels.

20160126578, May 5, 2016

Nov 9, 2015

14/935734

- Billerica MA, US
James Cross, III - Lowell MA, US
Ales Horky - North Vancouver, CA
Atul Sharma - Belmont MA, US
Filippo Gambini - Boston MA, US
Gabriel Corbellini - Somerville MA, US
Benjamin Lunt - Tewksbury MA, US

NUVERA FUEL CELLS, INC. - Billerica MA

H01M 8/1004
H01M 8/1018
H01M 4/96

This disclosure related to polymer electrolyte member fuel cells and components thereof, including fuel cell electrodes.