Microsoft Technology Licensing, LLC

Andrew W Harper

Alain Franck Gefflaut

Justin Allen Hutchings

Shawn E Maloney

Anthony Xavier Francisco

Various embodiments provide techniques and devices for implementing a self-described security model for sharing secure resources between secure applications. In some examples, a trustlet can include a self-described policy defining capabilities of the trustlet and/or membership in a scenario group managed by a signing authority. Further, the trustlet can include a code signature signed by the signing authority. Additionally, a proxy kernel can allow the trustlet to share application data with other trustlets in the scenario group based on the policy and the code signature without exposing the application data to compromised system software and/or unauthorized applications.

Self-described security model for resource access

Embodiments of the invention provide a layered printer driver model in which, at the 'bottom layer,' a rendering component provides rendering functionality to format information constituting a print job initiated according to a page description language that a printer device is designed to process, and one or more other components that provide configuration and/or user experience functionality may 'sit atop' the bottom layer. Any or all of these higher-level components may support not just a single printer device, but a class of printer devices defined by one or more shared characteristics.

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Seattle, WA, United States of America

Andrew W Harper