Patents by Inventor Teodora Ngo

Teodora Ngo 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).

  • Multilevel security attribute passing methods, apparatuses, and computer program products in a stream
    Patent number: 6292900
    Abstract: A multilevel security attribute passing system on a computer operating under a multilevel operating system engaged in stream communications and enabling contemporaneously opening a plurality of sockets having the same port number while meeting the requirements of a predetermined security policy. The security attributes of received data are copied into a credentials structure identified by a pointer in an attribute structure. The security of a data node configured for data stream communication is specified by storing the security attributes of transferred data into a selected data structure and then pointing to the selected data structure with intervening transmission and attribute structures.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: September 18, 2001
    Assignee: Sun Microsystems, Inc.
    Inventors: Teodora Ngo, Gary W. Winiger