Patents Assigned to Grid Data Security, Inc.
  • User authentication system and method
    Patent number: 7143440
    Abstract: A user authentication method includes creating an authentication key in the form of a user formula, presenting a user with an arrangement of variables, each assigned a value, applying the assigned values to matching variables in the user formula and calculating a first result, and authenticating the user if the first result matches a second result of a separate and independent calculation of the user formula.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: November 28, 2006
    Assignee: Grid Data Security, Inc.
    Inventor: Lev Ginzberg