Patents by Inventor Thomas Ristenpart

Thomas Ristenpart 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).

  • Patent number: 9128739
    Abstract: A method includes the step of running a set of instances on at least one cloud for a first time interval, each of the instances comprising a bundle of virtualized resources. The method also includes the step of evaluating one or more performance characteristics of each of the instances in the set of instances over the first time interval. The method further includes the step of determining a first subset of the set of instances to maintain for a second time interval and a second subset of the set of instances to terminate for the second time interval responsive to the evaluating step. The steps are performed by at least one processing device comprising a processor coupled to a memory.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: September 8, 2015
    Assignee: EMC Corporation
    Inventors: Ari Juels, Kevin D. Bowers, Benjamin Farley, Venkatanathan Varadarajan, Thomas Ristenpart, Michael M. Swift
  • Patent number: 8848924
    Abstract: A privacy-preserving device-tracking system and method to assist in the recovery of lost or stolen Internet-connected mobile devices. The function of such a system seem contradictory, since it is desirable to hide a device's legitimately-visited locations from third-party services and other parties to achieve location privacy, while still enabling recovery of the device's location(s) after it goes missing by tracking the device to determine its location. An exemplary embodiment uses a DHT for storing encrypted location information and other forensic information in connection with indices that are successively determined based on initial pseudorandom seed information (i.e., state) that is retained by the owner of the device. Using the seed information, the software can determine indices mapped to location information stored after the device went missing, enabling the device to be located.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: September 30, 2014
    Assignee: University of Washington
    Inventors: Tadayoshi Kohno, Arvind Krishnamurthy, Gabriel Maganis, Thomas Ristenpart
  • Publication number: 20090323972
    Abstract: A privacy-preserving device-tracking system and method to assist in the recovery of lost or stolen Internet-connected mobile devices. The function of such a system seem contradictory, since it is desirable to hide a device's legitimately-visited locations from third-party services and other parties to achieve location privacy, while still enabling recovery of the device's location(s) after it goes missing by tracking the device to determine its location. An exemplary embodiment uses a DHT for storing encrypted location information and other forensic information in connection with indices that are successively determined based on initial pseudorandom seed information (i.e., state) that is retained by the owner of the device. Using the seed information, the software can determine indices mapped to location information stored after the device went missing, enabling the device to be located.
    Type: Application
    Filed: November 24, 2008
    Publication date: December 31, 2009
    Applicant: University of Washington
    Inventors: Tadayoshi Kohno, Arvind Krishnamurthy, Gabriel Maganis, Thomas Ristenpart