post_install() {
	groupadd yubiauth
	touch /etc/yubikey
	chgrp yubiauth /etc/yubikey /usr/local/sbin/yk_chkpwd
	chmod g+rw /etc/yubikey
	chmod g+s /usr/local/sbin/yk_chkpwd
}

post_remove() {
	groupdel yubiauth
}