[dns-operations] Validation direction (Was: Re: Org Dnskey TTL)

[Andrew Sullivan]

On Tue, Apr 20, 2010 at 04:07:35PM +0200, Phil Regnauld wrote:

> 	Do you have any example of validators doing bottom-up ?  If I understand

Not offhand.  But since both approaches are clearly conforming, I
think we'd be unwise to conclude that only one of them is what we need
to consider when evaluating operational effects, especially when some
of the most widely-deployed operating systems' vendors haven't made
any announcements about what they might do if they offer validation
out at the end points.  It's early days yet.

> 	Is there some inherent advantage to doing bottom-up validation ?

No, but there might be an advantage to a particular code base,
depending on how it was already constructed.  (I don't know.)  

A

-- 
Andrew Sullivan
ajs at shinkuro.com
Shinkuro, Inc.