Resources Contact Us Home
Techniques for implementing security on a small footprint device using a context barrier

Image Number 4 for United States Patent #6823520.

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.

  Recently Added Patents
Device having built-in digital data device and light for insertion into a lamp holder
Restore software with aggregated view of content databases
Imaging lens with three lens elements, and electronic apparatus having the same
Techniques to manage communications resources for a multimedia conference event
Pluggable power cell for an inverter
Semiconductor memory device
Boundary acoustic wave device
  Randomly Featured Patents
Method of installing a sleeve within an instrumentation tube of a nuclear fuel assembly
Three-degree-of-freedom parallel planar manipulator
Motor core and motor using the same
Telecommunications call back system
Incubation apparatus
Submersible pump assembly for downhole use
Grain bin vent cover
Magneto-optical recording medium with multiple magnetic layers