Electrical computers and digital processing systems: support – System access control based on user identification by...
Reexamination Certificate
2005-06-30
2009-12-22
Revak, Christopher A (Department: 2431)
Electrical computers and digital processing systems: support
System access control based on user identification by...
C713S172000, C713S185000, C709S225000, C709S229000, C726S002000, C726S004000, C726S009000, C726S010000
Reexamination Certificate
active
07636851
ABSTRACT:
An operating system for a computing device has a first session for a user that includes a first base process that has a first privileges token attached thereto. The first privileges token includes substantially a full set of privileges of the user on the operating system. The operating system also has a second session for the user that includes a second base process that has a second privileges token attached thereto. The second privileges token is derived from the first privileges token and includes only a minimum set of privileges of the user on the operating system. Thus, the second, limited token does not have all privileges associated with the first, full token but instead has a limited set of privileges and not extra privileges that could be employed to take actions that would be harmful, deceptive, or malicious.
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Brundrett Peter T.
Dubhashi Kedarnath A.
Hamblin Jeffrey B.
Jones Thomas C.
Schutz Klaus U.
Microsoft Corporation
Revak Christopher A
Su Sarah
Woodcock & Washburn LLP
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