syslogにやたらとxscertdというのが出てきて気になるので、man xscertdしてみた。
xscertd(8) BSD System Manager's Manual xscertd(8) NAME xscertd -- Certificate signing daemon SYNOPSIS xscertd DESCRIPTION xscertd is a daemon which signs certificate requests and distributes CRLs using the SCEP protocol. Its controlled by launchd.
CRLはCertificate Revocation List、SCEPはSimple Certificate Enrollment Protocolらしい。ひとまず認証系のデーモン。