Re: [TLS] Francesca Palombini's No Objection on draft-ietf-tls-dtls-connection-id-11: (with COMMENT)

Achim Kraus <achimkraus@gmx.net> Wed, 21 April 2021 08:37 UTC

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To: Francesca Palombini <francesca.palombini=40ericsson.com@dmarc.ietf.org>
Cc: Hannes Tschofenig <Hannes.Tschofenig@arm.com>, The IESG <iesg@ietf.org>, "tls@ietf.org" <tls@ietf.org>, "draft-ietf-tls-dtls-connection-id@ietf.org" <draft-ietf-tls-dtls-connection-id@ietf.org>, "tls-chairs@ietf.org" <tls-chairs@ietf.org>
References: <161893574825.2034.14965092293340124157@ietfa.amsl.com> <VI1PR08MB263997ACF01BB1FAA0528BA0FA479@VI1PR08MB2639.eurprd08.prod.outlook.com> <C01BB615-18A4-467B-A9D7-695F00976B22@ericsson.com>
From: Achim Kraus <achimkraus@gmx.net>
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Date: Wed, 21 Apr 2021 10:36:50 +0200
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Subject: Re: [TLS] Francesca Palombini's No Objection on draft-ietf-tls-dtls-connection-id-11: (with COMMENT)
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Hi Francesca,

 > Then I guess 53 will become unassigned, no need to reserve it, right?

After a "reserved period", yes.
If that value is then assigned for TLS or DTLS 1.3 only, then that
period may be very short. If that value is assigned also for DTLS 1.2
(again), I would prefer a longer "reserved period", e.g. 12 months.
(That's just my personal preference.)

Best regards
Achim Kraus

Am 21.04.21 um 10:29 schrieb Francesca Palombini:
> Hi Hannes, Achim,
>
> Thanks, that's all I was curious about! No need to add that to the IANA considerations, this was more of a question on my side. Then I guess 53 will become unassigned, no need to reserve it, right?
>
> Thomas: thanks for creating the issue - I will track there.
>
> Francesca
>
> On 21/04/2021, 08:00, "Hannes Tschofenig" <Hannes.Tschofenig@arm.com> wrote:
>
>      Hi Francesca,
>
>      ~ snip ~
>
>      5. -----
>
>      Section 10.2
>
>      FP: Just checking - why is 53 "incompatible with this document"?
>
>      [Hannes] Maybe someone responded already regarding this point. I don't know whether it is good or bad practice to provide all this background in the IANA considerations but the story here is (if I recall it correctly) that we initially assigned the value 53 and implementations used in deployments use 53. Then, late in the process we changed the MAC calculation in Section 5...
>
>      Ciao
>      Hannes
>
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