Techniques for permitting access across a context barrier on a small footprint device using run time environment privileges

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 actio...

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Bibliographic Details
Main Authors M.B. BUTLER, A. STREICH, J. SUSSER
Format Patent
LanguageEnglish
Published 29.05.2002
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary: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.
Bibliography:Application Number: CN20008002990