need to figure out a way to:
- store encrypted data
- delta compressed
- accessible by version
- on disk
- ssh pubkeys are used for registration and signing only, encryption done only through ephemeral keypairs
- every time a push is made, a new privet is generated w/ a new id and keypair
- old keypairs need to be locally stored
- historic ids can be listed in new
.privetfile, or optionally destroyed - how to share with other people while staying encrypted on server?