Patents by Inventor HELMUT ALEXANDER GOETTL

HELMUT ALEXANDER GOETTL 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 for performing multiple enrollments of a physically uncloneable function
    Patent number: 10146464
    Abstract: A data processing system having a PUF and method for providing multiple enrollments, or instantiations, of the PUF are provided. A PUF segment includes a plurality of SRAM cells on an integrated circuit. A PUF response from the PUF segment is used to create a first activation code and a first PUF key. A second PUF key may be created from the PUF response. Initially, during a second enrollment, the PUF response is combined with the first activation code to reproduce a codeword. The first secret string is reconstructed by encoding the codeword. The codeword is combined with the first activation code to reproduce the PUF response. Inverse anti-aging is applied to the PUF response. Then a second secret string is generated using a random number generator (RNG). The second secret string is encoded to produce a new codeword. The new codeword is combined with the recovered PUF response to create a second activation code. The second activation coded is hashed with the second secret string to provide a second PUF key.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: December 4, 2018
    Assignee: NXP B.V.
    Inventors: Bruce Murray, Helmut Alexander Goettl, Sven Heine, Christiaan Kuipers
  • METHOD FOR PERFORMING MULTIPLE ENROLLMENTS OF A PHYSICALLY UNCLONEABLE FUNCTION
    Publication number: 20180004444
    Abstract: A data processing system having a PUF and method for providing multiple enrollments, or instantiations, of the PUF are provided. A PUF segment includes a plurality of SRAM cells on an integrated circuit. A PUF response from the PUF segment is used to create a first activation code and a first PUF key. A second PUF key may be created from the PUF response. Initially, during a second enrollment, the PUF response is combined with the first activation code to reproduce a codeword. The first secret string is reconstructed by encoding the codeword. The codeword is combined with the first activation code to reproduce the PUF response. Inverse anti-aging is applied to the PUF response. Then a second secret string is generated using a random number generator (RNG). The second secret string is encoded to produce a new codeword. The new codeword is combined with the recovered PUF response to create a second activation code. The second activation coded is hashed with the second secret string to provide a second PUF key.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Inventors: BRUCE MURRAY, HELMUT ALEXANDER GOETTL, SVEN HEINE, CHRISTIAAN KUIPERS