Hey folks,
Hopefully a quick one, I’m just looking for confirmation. We’re looking to use FDB’s encryption at rest facilities for backups, --encryption-key-file.
However I’m not finding any reference in the documentation to the format of the file, the help says:
--encryption-key-file The AES-128-GCM key in the provided file is used for encrypting backup files.
So my educated guess is a file with 16 bytes of random data, generated with openssl rand 16 or similar.
I’m happy to just try it, but I’m of course cautious when it comes to backups. 
Can anyone confirm?
P.