Patents by Inventor Sherry E. Shannon-Vanstone

Sherry E. Shannon-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).

  • ONE WAY AUTHENTICATION
    Publication number: 20130073857
    Abstract: A cryptosystem prevents replay attacks within existing authentication protocols, susceptible to such attacks but containing a random component, without requiring modification to said protocols. The entity charged with authentication maintains a list of previously used bit patterns, extracted from a portion of the authentication message connected to the random component. If the bit pattern has been seen before, the message is rejected; if the bit pattern has not been seen before, the bit pattern is added to the stored list and the message is accepted.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: CERTICOM CORP.
    Inventors: Scott A. VANSTONE, Sherry E. SHANNON-VANSTONE
  • One way authentication
    Patent number: 8359469
    Abstract: A cryptosystem prevents replay attacks within existing authentication protocols, susceptible to such attacks but containing a random component, without requiring modification to said protocols. The entity charged with authentication maintains a list of previously used bit patterns, extracted from a portion of the authentication message connected to the random component. If the bit pattern has been seen before, the message is rejected; if the bit pattern has not been seen before, the bit pattern is added to the stored list and the message is accepted.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: January 22, 2013
    Assignee: Certicom Corp.
    Inventors: Scott A. Vanstone, Sherry E. Shannon-Vanstone
  • ONE WAY AUTHENTICATION
    Publication number: 20120089844
    Abstract: A cryptosystem prevents replay attacks within existing authentication protocols, susceptible to such attacks but containing a random component, without requiring modification to said protocols. The entity charged with authentication maintains a list of previously used bit patterns, extracted from a portion of the authentication message connected to the random component. If the bit pattern has been seen before, the message is rejected; if the bit pattern has not been seen before, the bit pattern is added to the stored list and the message is accepted.
    Type: Application
    Filed: December 9, 2011
    Publication date: April 12, 2012
    Applicant: CERTICOM CORP.
    Inventors: Scott A. VANSTONE, Sherry E. SHANNON-VANSTONE
  • One way authentication
    Patent number: 8095792
    Abstract: A cryptosystem prevents replay attacks within existing authentication protocols, susceptible to such attacks but containing a random component, without requiring modification to said protocols. The entity charged with authentication maintains a list of previously used bit patterns, extracted from a portion of the authentication message connected to the random component. If the bit pattern has been seen before, the message is rejected; if the bit pattern has not been seen before, the bit pattern is added to the stored list and the message is accepted.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: January 10, 2012
    Assignee: Certicom Corp.
    Inventors: Scott A. Vanstone, Sherry E. Shannon-Vanstone