Information security – Prevention of unauthorized use of data including prevention...
Reexamination Certificate
2008-05-27
2008-05-27
Revak, Christopher (Department: 2131)
Information security
Prevention of unauthorized use of data including prevention...
C713S165000, C713S190000, C713S002000, C713S164000, C380S044000, C380S045000, C711S163000
Reexamination Certificate
active
11386269
ABSTRACT:
A processing system has a processor that can operate in a normal ring0operating mode and one or more higher ring operating modes above the normal ring0operating mode. In addition, the processor can operate in an isolated execution mode. A memory in the processing system may include an ordinary memory area that can be accessed from the normal ring0operating mode, as well as an isolated memory area that can be accessed from the isolated execution mode but not from the normal ring0operating mode. The processing system may also include an operating system (OS) nub, as well as a key generator. The key generator may generate an OS nub key (OSNK) based at least in part on an identification of the OS nub and a master binding key (BK0) of the platform. Other embodiments are described and claimed.
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Ellison Carl M.
Golliver Roger A.
Herbert Howard C.
Lin Derrick C.
McKeen Francis X.
Abrishamkar Kaveh
Barre Michael R.
Intel Corporation
Revak Christopher
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