Importance

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Abstract

Systems and methods are described here to provide a degree or level of certification to a resident application such as an operating system, e.g., Linux®. In a Linux® implementation, the operating system provides a robust environment including many seasoned communication stacks, e.g., TCP/IP, USB, and the like. However, Linux® is not certified to the level necessary to be a part of many avionics applications. To eliminate the need to certify all of such an operating system, such certification being highly costly, the avionics application itself may be protected so that the operating system cannot alter the application's operating environment, e.g., application code and data, once the application is loaded and running. In this case, only the application requires certification at the highest level, and not the operating system such as Linux®.

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First Claim