systemd-ask-password-console.service

$ cat /lib/systemd/system/systemd-ask-password-console.service
#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.

[Unit]
Description=Dispatch Password Requests to Console
Documentation=man:systemd-ask-password-console.service(8)
DefaultDependencies=no
Conflicts=shutdown.target
After=plymouth-start.service systemd-vconsole-setup.service
Before=shutdown.target
ConditionPathExists=!/run/plymouth/pid

[Service]
ExecStart=/bin/systemd-tty-ask-password-agent --watch --console
$