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Pillar-side checksum verifications
The operation request have has fields for pillar-side verification of both the file to be replaced and the new file. These checksum for the existing file is for the pillar to verify that the client have has not mistaken the file for another. The checksum for the new file is for the pillar to verify that the new file was the correct one and transferred correctly.
Client-side checksum verifications
The operation request have has fields for requesting checksum calculation of the existing and new files to be sent back to the client to verify that the correct file have has been ingested by the pillar.
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