> Evan Hunt <mailto:[email protected]>
> Tuesday, January 13, 2015 10:41 PM
>
> Didn't we decide a while back that this was a bad idea, that resolvers
> needed to stop trusting CNAME chains sent by authorities, and that
> authorities really ought to stop sending them?

yes, we did, "unless dnssec signatures are also sent". that's in
warren's proposal also.
> Even if
> I'm DNSSEC-validating your responses, you *could* be replaying an outdated
> answer with a still-valid signature, ...

no, because you could receive that signature in other ways, and so its
validity-period is all that governs.

-- 
Paul Vixie
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