Patents by Inventor Scott A Vanstone

Scott A Vanstone 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).

  • Key agreement protocol
    Patent number: 9571274
    Abstract: The present invention relates to data communication systems and protocols utilized in such systems.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: February 14, 2017
    Inventors: Scott A Vanstone, Adrian Antipa
  • KEY AGREEMENT PROTOCOL
    Publication number: 20150003615
    Abstract: The present invention relates to data communication systems and protocols utilized in such systems.
    Type: Application
    Filed: June 24, 2014
    Publication date: January 1, 2015
    Inventors: Scott A VANSTONE, Adrian ANTIPA
  • Data card verification system
    Patent number: 7472276
    Abstract: A method of verifying a pair of correspondents in electronic transaction, the correspondents each including first and second signature schemes and wherein the first signature scheme is computationally more difficult in signing than verifying and the second signature scheme is computationally more difficult in verifying than signing. The method comprises the step of the first correspondent signing information according to the first signature scheme and transmitting the first signature to the second correspondent, the second correspondent verifying the first signature received from the first correspondent, wherein the verification is performed according to the first signature scheme.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: December 30, 2008
    Assignee: Certicom Corp.
    Inventor: Scott A Vanstone
  • Method for certifying public keys used to sign postal indicia and indicia so signed
    Patent number: 6847951
    Abstract: A method for certifying the public key of a digital postage meter using a public key encryption system by a certifying authority. A certifying station and a user station, or a digital postage meter, exchange information and the user station and downloads, or the meter derives, a public key from the exchanged information. The certifying station also publishes related information and its public key. A third party can derive the public key corresponding to the meter's private key by operating on the published information with the certifying station public key.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: January 25, 2005
    Assignee: Pitney Bowes Inc.
    Inventors: Robert A. Cordery, Leon A Pintsov, Scott A Vanstone
  • Data card verification system
    Patent number: 6178507
    Abstract: A method for verifying the authenticity of messages exchanged between a pair of correspondents in an electronic conducted over a data transmission system where the correspondents each include respective signing and verifying portions of a first signature scheme and a second signature scheme different from the first and utilizing an elliptic curve cryptosystem.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: January 23, 2001
    Assignee: Certicom Corp.
    Inventor: Scott A Vanstone