RFCs 4033, 4034 and 4035 have just been released. These RFCs specify the DNSSEC protocol.

An extention to Net::DNS that implements the records specified used in DNSSEC is available through CPAN. The module is called Net::DNS::SEC.

The Subversion repository is available through http://www.net-dns.org/svn/net-dns-sec/trunk/