NIST-AC-4(32) Process Requirements for Information Transfer

When transferring information between different security domains, the process that transfers information between filter pipelines: (a) Does not filter message content; (b) Validates filtering metadata; (c) Ensures the content associated with the filtering metadata has successfully completed filtering; and (d) Transfers the content to the destination filter pipeline.

The processes transferring information between filter pipelines have minimum complexity and functionality to provide assurance that the processes operate correctly.