Patents by Inventor Dwaine Clarke

Dwaine Clarke 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).

  • Authentication of integrated circuits
    Patent number: 7840803
    Abstract: A group of devices are fabricated based on a common design, each device having a corresponding plurality of measurable characteristics that is unique in the group to that device, each device having a measurement module for measuring the measurable characteristics. Authentication of one of the group of devices is enabled by selective measurement of one or more of the plurality of measurable characteristics of the device.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: November 23, 2010
    Assignees: Massachusetts Institute of Technology, Intrinsic ID B.V.
    Inventors: Dwaine Clarke, Blaise Gassend, Marten Van Dijk, Srinivas Devadas
  • Integrated Circuit That Uses A Dynamic Characteristic Of The Circuit
    Publication number: 20090222672
    Abstract: An integrated circuit has a first component that has a dynamic characteristic that varies among like integrated circuits, for example, among integrated circuits fabricated using the same lithography mask. Operating the first component produces an output that is dependent on the dynamic characteristic of the first component. A digital value associated with the integrated circuit is generated using the output of the first component, and then the generated digital value is used in operation of the integrated circuit.
    Type: Application
    Filed: January 29, 2009
    Publication date: September 3, 2009
    Applicant: Massachusetts Institute of Technology
    Inventors: Dwaine Clarke, Blaise Gassend, Marten Van Dijk, Srinivas Devadas
  • CONTROLLING ACCESS TO DEVICE-SPECIFIC INFORMATION
    Publication number: 20070183194
    Abstract: A method for providing access to device-specific information includes providing a first value to the device, and then, in the device, using a second value that is a first one-way function of the provided first value to determine a third value such that the third value is a device-specific function of the second value. The third value is then accepted from the device and stored outside the device. Subsequent to accepting the third value from the device, the second value is provided to the device. In the device, the provided second value is used to determine the third value once again and a fourth value is determined that is a second one-way function of the third value. This determining of the fourth value is performed without disclosing the third value outside the device. The fourth value is accepted from the device.
    Type: Application
    Filed: June 1, 2006
    Publication date: August 9, 2007
    Inventors: Srinivas Devadas, Blaise Gassend, Dwaine Clarke, Marten Van Dijk
  • Authentication of integrated circuits
    Publication number: 20030204743
    Abstract: A group of devices are fabricated based on a common design, each device having a corresponding plurality of measurable characteristics that is unique in the group to that device, each device having a measurement module for measuring the measurable characteristics. Authentication of one of the group of devices is enabled by selective measurement of one or more of the plurality of measurable characteristics of the device.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 30, 2003
    Inventors: Srinivas Devadas, Blaise Gassend, Marten Van Dijk, Dwaine Clarke