Greetings, all,

My opinion is close enough to Ted's for me to quote it:

> On 27 Jul 2015, at 18:40, Ted Hardie <[email protected]> wrote:
> 
> Since there was a request to restate viewpoints on the list even for those of 
> us vocal at the meeting, my current preference is for moving forward with 
> both, with an aim toward convergence if possible.
> 
> I think both provide a reasonable starting point, with the trade-offs between 
> the two being difficult to assess on an apples-to-apples basis (simplicity 
> versus re-use, to boil it down).  Given the lack of consensus for either, I 
> would prefer starting with both than continuing to block on this decision.  
> Should consensus emerge to continue with either one, I will support that 
> consensus.

(in other words, adopt both with a view toward convergence within the WG 
process, support consensus around either as a starting point should it develop.)

No matter where we start, I believe a successful TCPINC protocol will have the 
following properties:

(1) plays very nicely with (D)TLS (1.x): TCPINC should be seen as a 
transitional technology, as a way to reduce the proportion of cleartext traffic 
on the Internet while application-layer protocols are redesigned and 
reimplemented with confidentiality in mind. Given that TLS is the default way 
to build security in now, this implies simple runtime upgrade to TLS is a 
necessary feature. We can have a discussion about which version to support this 
upgrade to -- since it's a transition technology to doing things right, we can 
target upgrade to / integration with a future (D)TLS version.

(A) plays very nicely with kernel TCP implementations: the requirements here 
are "minimal connection setup latency penalty" and "negligible steady-state 
throughput penalty given sufficient processing power and/or crypto 
acceleration", which currently implies relatively tight integration into the 
stack.

Cheers,

Brian



> regards,
> 
> Ted
> 
> 
> On Fri, Jul 24, 2015 at 2:16 AM, Martin Stiemerling <[email protected]> 
> wrote:
> 
> Dear all,
> 
> **Please use this CORRECTED version, as one option to choose from below 
> didn't make it into the original.****
> Thanks to Erik Rescola for pointing this out to me directly.
> 
> This point got lost on the mailing list, but it has been decided in the WG 
> session here at IETF-93 that there will be a Last Call for consensus about 
> which document of the below ones to take as starting point for the WG.
> 
> 
> Here are the two drafts:
> a) draft-rescorla-tcpinc-tls-option-03
> b) draft-bittau-tcpinc-tcpcrypt-03
> 
> Please respond to the tcpinc wg mailing list until
> 
>    July 31st, 2015
>    1pm CEST
> 
> on wether you prefer
> - either draft a) or b)
> - both drafts (a & b) as WG items
> - or none
> 
> to be accepted as WG item(s).
> 
> Please write also your brief reasoning on why you made your choice.
> 
> Please note that accepting a draft is not the end of working on the technical 
> content of the draft, but it is actually the starting point when the WG has 
> full change control about the content of the draft!
> 
> 
> Regards,
> 
>   Martin Stiemerling
>   Transport Area Director
> 
> _______________________________________________
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> https://www.ietf.org/mailman/listinfo/tcpinc
> 
> _______________________________________________
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