In message <5273525C.5060908@necom830.hpcl.titech.ac.jp>, Masataka Ohta writes:
Mark Andrews wrote:
That said it is possible to completely automate the secure assignment of PTR records. It is also possible to completely automate the secure delegation of the reverse name space. See http://tools.ietf.org/html/draft-andrews-dnsop-pd-reverse-00
It is a lot simpler and a lot more practical just to use shared secret between a CPE and a ISP's name server for TSIG generation.
No it isn't. It requires a human to transfer the secret to the CPE device or to register the secret with the ISP. I'm talking about just building this into CPE devices and having it just work with no human involvement.
As the secret can be directly shared end to end, it is more secure than DNSSEC involving untrustworthy third parties.
Masataka Ohta -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@isc.org