NAMEsystemd-cryptsetup@.service, systemd-cryptsetup - Full disk decryption logic
systemd-cryptsetup@.service is a service responsible for setting up encrypted block devices. It is instantiated for each device that requires decryption for access.
systemd-cryptsetup@.service will ask for hard disk passwords via the m[blue]password agent logicm
At early boot and when the system manager configuration is reloaded this /etc/crypttab is translated into systemd-cryptsetup@.service units by systemd-cryptsetup-generator(8).
password agent logic