Patents by Inventor Josanne M. Otway

Josanne M. Otway 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 and system for providing updated encryption key pairs and digital signature key pairs in a public key system
    Patent number: 6978017
    Abstract: An adaptable cryptographic method and system provides updated digital signature key pairs in a public key system by providing, through a multi-client manager unit, selectable expiry data such as digital signature certificate lifetime data, public key expiry data and private key expiry data as selectable on a per client basis. The multi-client manager unit stores selected public key expiry data and private key expiry data for association with a new digital signature key pair and associates the stored selected expiry data with the new digital signature key pair to facilitate a transition from an old digital signature key pair to a new digital signature key pair.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: December 20, 2005
    Assignee: Entrust Limited
    Inventors: Michael J. Wiener, Josanne M. Otway
  • METHOD AND SYSTEM FOR PROVIDING UPDATED ENCRYPTION KEY PAIRS AND DIGITAL SIGNATURE KEY PAIRS IN A PUBLIC KEY SYSTEM
    Publication number: 20030110376
    Abstract: An adaptable cryptographic method and system provides updated digital signature key pairs in a public key system by providing, through a multi-client manager unit, selectable expiry data such as digital signature certificate lifetime data, public key expiry data and private key expiry data as selectable on a per client basis. The multi-client manager unit stores selected public key expiry data and private key expiry data for association with a new digital signature key pair and associates the stored selected expiry data with the new digital signature key pair to facilitate a transition from an old digital signature key pair to a new digital signature key pair.
    Type: Application
    Filed: October 14, 1997
    Publication date: June 12, 2003
    Inventors: MICHAEL J. WIENER, JOSANNE M. OTWAY