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Efforts to enhance secure software distribution and secure software loading practices throughout aviation ecosystem are ongoing. Significant strides have been taken in establishing standards and various implementation methodologies have been provided to the industry to help advance secure software distribution and loading in the aviation domain.

This paper seeks to provide guidance for compliance to new aviation standards and provides recommendations to standardize best practices as much as possible. This guidance complements the 2020 software recommendation paper establishing the basis for ARINC 645-1 secure dataloaders and provides proposals for transitioning civil aviation to secure software distribution for all aircraft.

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