Patents by Inventor Givindarajan Krishnamurthi

Givindarajan Krishnamurthi 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).

  • Method of reducing denial-of-service attacks and a system as well as an access router therefor
    Patent number: 7656840
    Abstract: A method and system reduces denial-of-service attacks malicious mobile nodes in a mobile IP environment. The method and system includes maintaining, by each of a plurality of access routers within the mobile IP environment, a cache of neighboring access routers as candidates and their associated access points. The caches are populated in response to actions initiated by mobile nodes. Each cache entry is tagged with the identity of the action initiating mobile node. The identity is based on information that is verifiable by the access routers and which cannot be modified arbitrarily by the mobile node. The total number of entries that can be tagged and thus introduced into a cache by any given node is limited.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: February 2, 2010
    Assignee: Nokia Corporation
    Inventors: Givindarajan Krishnamurthi, Robert Chalmers