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Integration of untrusted framework components with a secure operating system environment

  • US 9,338,522 B2
  • Filed: 12/14/2012
  • Issued: 05/10/2016
  • Est. Priority Date: 10/18/2012
  • Status: Active Grant
First Claim
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1. A media processing device having software and hardware resources for performing media delivery operations, comprising:

  • processing circuitry;

    a secure operating system environment, the secure operating system environment executed by the processing circuitry;

    a software framework, the software framework providing application programming interface functionality to support compatible applications; and

    a secure access interface configured to regulate communications between the secure operating system environment and the software framework, and to provide restricted access to at least a portion of the software and hardware resources for performing media delivery operations, the secure access interface comprising;

    a secure access server incorporated in the secure operating system environment, the secure access server configured to provide access to the secure operating system environment; and

    a plurality of secure access clients configured to interface with the secure access server, each secure access client having respective access rights to the secure operating system environment via the secure access server, first access rights providing full access to the secure operating system environment for a first application and second access rights providing limited access, relative to the first access rights, to the secure operating system environment for a second application.

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