Patents by Inventor Edward J. Allard

Edward J. Allard 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).

  • Adaptable security mechanism for preventing unauthorized access of digital data
    Patent number: 7603563
    Abstract: Content such as computer software, data representing audiovisual works, and electronic documents can converted from a machine-bound state to user-bound state without modification to the content data itself. Instead, keys used to access the content are converted from the machine-bound state to the user-bound state. In particular, the keys are kept in a passport data structure which can represent either a machine-binding or a user-binding. A machine-bound passport can be upgraded to a user-bound passport without modifying the bound content. The private key of the machine-bound passport, in cleartext form, is included in the user-bound passport and encrypted using a user-supplied password to bind the private key to the user. In addition, private user information is collected and verified and included in the user-bound passport.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: October 13, 2009
    Assignee: Microsoft Corporation
    Inventors: Steven T. Ansell, Andrew R. Cherenson, Leon Rishniw, Susan A. Cannon, Edward J. Allard, Jason S. Brownell, Micah Stroud
  • Adaptable security mechanism for preventing unauthorized access of digital data
    Patent number: 6792113
    Abstract: Content such as computer software, data representing audiovisual works, and electronic documents can converted from a machine-bound state to user-bound state without modification to the content data itself. Instead, keys used to access the content are converted from the machine-bound state to the user-bound state. In particular, the keys are kept in a passport data structure which can represent either a machine-binding or a user-binding. A machine-bound passport can be upgraded to a user-bound passport without modifying the bound content. The private key of the machine-bound passport, in cleartext form, is included in the user-bound passport and encrypted using a user-supplied password to bind the private key to the user. In addition, private user information is collected and verified and included in the user-bound passport.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: September 14, 2004
    Assignee: Microsoft Corporation
    Inventors: Steven T. Ansell, Andrew R. Cherenson, Leon Rishniw, Susan A. Cannon, Edward J. Allard, Jason S. Brownell, Micah Stroud