[ Thanks to David for this link.
]
“A loopback device is a very special device that allows you to
mount a normal file as it was a physical device. Loopbacks can be
encrypted: this becomes very useful sometimes.“Consider, as [an] example, that you need to encypt a few files,
nothing big, let’s say 100 MB or so. Encrypting an entire partition
could be too much. Then a cryptoloop could be the right solution to
your problem…”
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