Patents by Inventor Michael Griffiths-Harvey

Michael Griffiths-Harvey 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).

  • Authenticated radio frequency identification and key distribution system therefor
    Patent number: 9013266
    Abstract: An authenticated RFID system is provided that uses elliptic curve cryptography (ECC) to reduce the signature size and read/write times when compared to traditional public key implementations such as RSA. Either ECDSA or ECPVS can be used to reduce the signature size and ECPVS can be used to hide a portion of the RFID tag that contains sensitive product identifying information. As a result, smaller tags can be used or multiple signatures can be written at different stages in a manufacturing or supply chain. A key management system is used to distribute the verification keys and aggregate signature schemes are also provided for adding multiple signatures to the RFID tags, for example in a supply chain.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: April 21, 2015
    Assignee: Certicom Corp.
    Inventors: Michael Griffiths-Harvey, Brian Neill, Keelan Smith, Tony Rosati, Walt Davis
  • Authenticated radio frequency identification and key distribution system therefor
    Publication number: 20080164976
    Abstract: An authenticated RFID system is provided that uses elliptic curve cryptography (ECC) to reduce the signature size and read/write times when compared to traditional public key implementations such as RSA. Either ECDSA or ECPVS can be used to reduce the signature size and ECPVS can be used to hide a portion of the RFID tag that contains sensitive product identifying information. As a result, smaller tags can be used or multiple signatures can be written at different stages in a manufacturing or supply chain. A key management system is used to distribute the verification keys and aggregate signature schemes are also provided for adding multiple signatures to the RFID tags, for example in a supply chain.
    Type: Application
    Filed: September 10, 2007
    Publication date: July 10, 2008
    Inventors: Michael Griffiths-Harvey, Brian Neill, Keelan Smith, Tony Rosati, Walt Davis