Hardware access control locking
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United States of America Patent
Stats
-
Oct 16, 2001
Grant Date -
N/A
app pub date -
Sep 2, 1997
filing date -
Sep 2, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for permitting access to protected code, protected data or protected devices only when a computer system is in a trusted state, where said trusted state occurs only when said system is executing trusted code under a set of preselected conditions. This apparatus also has a device for exiting the trusted state and for preventing access to protected code, data and devices when the trusted state is exited. The computer system is also programmed to automatically generate a disabling signal upon the completion of execution of trusted code, and this disabling signal will result in the prevention of access to protected devices or code.
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