Mapping erzeugen (Passwort erforderlich):
cryptsetup luksOpen /dev/xvdc backup2
Mapping mounten:
mount /dev/mapper/backup2 /backup2
Mapping überprüfen:
cryptsetup -v status backup2
luks-Header ausgeben:
cryptsetup luksDump /dev/xvdc
Mapping beenden:
cryptsetup luksClose backup2
Passwort ändern:
cryptsetup luksAddKey /dev/xvdc cryptsetup luksRemoveKey /dev/xvdc
https://www.cyberciti.biz/security/howto-linux-hard-disk-encryption-with-luks-cryptsetup-command/