On Feb 5, 2014, at 6:29 PM, Paul Hoffman <[email protected]>
 wrote:

> On Feb 5, 2014, at 1:19 PM, Osterweil, Eric <[email protected]> wrote:
> 
>> Thanks for the quick response.  I am, however, a little puzzled by it.  So, 
>> is there some reason why these discussions here (on the WG list) are not the 
>> actual substance of determining what the DANE WG wants?  As I understand it 
>> (perhaps incorrectly?), we are discussing a working group document, so 
>> discussion of its contents should be inbounds and any resulting rough WG 
>> consensus should help direct its contents, no?
> 
> It is often better if a WG decides on a direction, not just a specific 
> technology. During the TLSA discussions, there were many threads about 
> delivery vs. discovery, and the WG early on went for "delivery, not 
> discovery". As I said in the previous message, if the WG wants to revisit 
> that decision and goes towards "discovery", there are lots of ways we can 
> make TLSA and SMIMEA records have some interesting new properties.

Paul, I don't think we have nearly enough data points to prescribe the general 
principles of all DANE protocols.  We have TLSA, and that is great.  I 
sincerely mean that, I think the TLSA work is a great step forward.  However, I 
also think that a starting assumption that prescribes that all DANE protocols 
should be executed under the same pre-computed discussions as the TLSA work is 
very bad for DANE.  S/MIME's semantics, requirements, and usage are different 
than TLS'.  How different?  I don't even claim to know that.  I think this line 
of discussion (disc vs. deliv) marginalizes the very specific issues that Scott 
raised and the subsequent issues that I raised.  Can we try to stay on point?

>> As for the broader statement of what DNS is for, and what the IETF at large 
>> thinks, I think perhaps you have expressed your own opinion here, and I 
>> (personally) do not agree.  In my view, DNS is (very much) a resource 
>> mapping (i.e. learning) mechanism.  That's how we find routable endpoints 
>> for HTTP. ;)  Content delivery aside.  I suspect you and I may actually be 
>> on the same page on that one, but apparently not on the learning issue.
> 
> I'm agnostic, and am happy for this document and TLSA go whichever way the 
> IETF wants. However, I'm not in favor of trying to cross the line and see if 
> the IETF notices.

I see you keying in on words, and I worry you're objecting to phraseology 
rather than the technical issues.  Would you prefer to reboot the conversation 
with more specific terminology?  These issues are important, so how about ``key 
learning.'' That is, imho, a more accurate description anyway.

>> Back to the main issue, I am following up on Scott's solicitation for 
>> discussion about his proposed changes, and expressing my support for them.  
>> I have read your response to those and responded to it, and I am happy to 
>> discuss the technical details further.
> 
> It's not the technical issues that are important, however.
> 
> So, WG: is "DNS for delivery vs. DNS for delivery and discovery" a topic 
> people want to revisit?

No, sorry, this is not the question that I raised.  I offered very specific 
technical justifications for technical suggestions.  Any answer to the above is 
not something I have raised or am discussing.

Eric
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