Techniques for implementing security on a small footprint device using a context barrier
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United States of America Patent
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Nov 23, 2004
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, such as a smart card, 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 namespace or memory space or to see that a requested action is authorized for an object to be operated upon.
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