Techniques for permitting access across a context barrier on a small footprint device using run time environment privileges
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United States of America Patent
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Jul 26, 2005
Grant Date -
N/A
app pub date -
Jan 22, 1999
filing date -
Jan 22, 1999
priority date (Note) -
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Abstract
A small footprint device can securely run multiple programs from unrelated vendors by the inclusion of a context barrier isolating the execution of the programs. The context barrier performs security checks to see that principal and object are within the same context or to see that a requested action is authorized for an object to be operated upon. Each program or set of programs runs in a separate context, however, one context has access to all program modules without context barrier constraints.
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