Patents by Inventor Chris Kommareddy

Chris Kommareddy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Detection of distributed denial of service attacks in autonomous system domains
    Patent number: 8397284
    Abstract: A denial-of-service network attack detection system is deployable in single-homed and multi-homed stub networks. The detection system maintains state information of flows entering and leaving the stub domain to determine if exiting traffic exceeds traffic entering the system. Monitors perform simple processing tasks on sampled packets at individual routers in the network at line speed and perform more intensive processing at the routers periodically. The monitors at the routers form an overlay network and communicate pertinent traffic state information between nodes. The state information is collected and analyzed to determine the presence of an attack.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: March 12, 2013
    Assignee: University of Maryland
    Inventors: Chris Kommareddy, Samrat Bhattacharjee, Mark A. Shayman, Richard La
  • Detection of Distributed Denial of Service Attacks in Autonomous System Domains
    Publication number: 20080028467
    Abstract: A denial-of-service network attack detection system is deployable in single-homed and multi-homed stub networks. The detection system maintains state information of flows entering and leaving the stub domain to determine if exiting traffic exceeds traffic entering the system. Monitors perform simple processing tasks on sampled packets at individual routers in the network at line speed and perform more intensive processing at the routers periodically. The monitors at the routers form an overlay network and communicate pertinent traffic state information between nodes. The state information is collected and analyzed to determine the presence of an attack.
    Type: Application
    Filed: January 17, 2007
    Publication date: January 31, 2008
    Inventors: Chris Kommareddy, Samrat Bhattacharjee, Mark Shayman, Richard La