[0083] Within the Trusted Drive architecture, it is possible to define a SP Object, like the Controller SP, that provides privileged access to authorized users to upload code to the controller. Thus, customers can be provided with a "Sandbox" where a Sandbox SP can safely execute scripts uploaded from the Host on a dynamic basis. A "sandbox" as it is understood in this instance is a virtual OS environment, which allows the user to upload code into random access memory to run within a confined window, thereby allowing for code debugging without permanently effecting the trusted drive. Several sandbox applications are commercially available, including Wave Systems Embassy by Wave Systems Corp. of Lee, Mass. TCPA/TCGs TPM is being developed to have this capability (optionally), and it is likely that the Trusted Windows Palladium/NGSCB architecture will incorporate a Sandbox for running arbitrary code. Such a Sandbox SDK would likely be available from third parties and not from the disc manufacturer.
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