Re: [TLS] draft-ietf-tls-esni feedback

Rob Sayre <sayrer@gmail.com> Mon, 21 October 2019 20:13 UTC

Return-Path: <sayrer@gmail.com>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CE822120927 for <tls@ietfa.amsl.com>; Mon, 21 Oct 2019 13:13:09 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.998
X-Spam-Level:
X-Spam-Status: No, score=-1.998 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id c95Orrq4y58y for <tls@ietfa.amsl.com>; Mon, 21 Oct 2019 13:13:08 -0700 (PDT)
Received: from mail-il1-x12e.google.com (mail-il1-x12e.google.com [IPv6:2607:f8b0:4864:20::12e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0406612090B for <tls@ietf.org>; Mon, 21 Oct 2019 13:13:08 -0700 (PDT)
Received: by mail-il1-x12e.google.com with SMTP id o16so5171437ilq.9 for <tls@ietf.org>; Mon, 21 Oct 2019 13:13:07 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=WDTjvn8TrvQvPFjMWxJXUEWyUMxjX74E9g3jWbfksEg=; b=f5Da1P2OaMjKDzX5Qyjn/8Ny9cjI3sS7cj+X0e+t+8OffBz1Fyc/DCJTYfQ8mFMkAB eMLcLZ+F0mTdXRIDBSsfkNMmcgUqrjL//f4+Olw1XH4Yx/j7sMkuTcbZEIlRnioWt33v RvAuqS3fX5MEtdtWqgDhlbG+ouegiuEcwZEOcZ5S+MqfuyUIo2STZdR9W6a5057fq9LB yk2l7QfX2i17UUsbLDSQlFeYr/CwaqVzYm/UrM9KfiPHtApO1bbr6HBOIQ108bTOKuBk AR6YDxUhu7BwZW2KTWXjBIFXiUSrK9rEsNgQQBvSz5o+opY+1QNurfr13/WMn2388QZI galg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=WDTjvn8TrvQvPFjMWxJXUEWyUMxjX74E9g3jWbfksEg=; b=FvDVF52AHHKRunP58yN8U0Com4tuvPXN/wma0YMOwZ5Kmrts/eZwdiEet8ha9YXRlo hTVIrby3fj3ZgSAez+5swpIm/OaT9Fss/TBbo6sNy1B2sPsU2n3qmCw8/cTIcGp/jd0n CCW8R7QXYfTXJMED/YAlJ4XlhhSo7EmYh3k9JB3v83NQd4i4sj6ufPsQW0fwjc6og9AL V+aA+fJQu8G6y8KiNd6101c0ygriR8ItY9zQ03S8JHV0TClSuJVPXDoaYq5/Y7tJq9qZ bo2CzfZ0eW0+h4Y1E83rOMzMvhk6UWQ6vz6RPXP7agkvKMp7QRd1n776wE8X+HKgW89E KjGA==
X-Gm-Message-State: APjAAAVg31AEcUHnKlAs1Uv0k+QppeGnWvTmueK7OnSfj+By//qEmQMd NrHXYyVIjwoWS3guYruhLkxXzn4mQc3kIjTWdmtErTWUC4w=
X-Google-Smtp-Source: APXvYqzUn29Mu6AGtoiGuZF+lAY8gCrL2ikCNK7hSLkwiI2qZS5WXwsnZsyizjUHSfLaEZ+gK2mBk7byMZKRrDS1aIU=
X-Received: by 2002:a92:db0c:: with SMTP id b12mr4477506iln.49.1571688787091; Mon, 21 Oct 2019 13:13:07 -0700 (PDT)
MIME-Version: 1.0
References: <CAChr6Sw3f7du3JYxfcWSZje1zjDzsRBQyDjob-AvzjWeZzKW7g@mail.gmail.com> <CABcZeBPbw_KOo_ieSqkksYPeLtb9DufBz628oFPYc_Ue4S9iww@mail.gmail.com> <CAChr6SwB+7Jt2TLJSQh3q=Roizdt2=9jCBa9nq8KRxRo=86uZQ@mail.gmail.com> <CABcZeBNBtDK7q175tseEUiCVds=khj4xXYJZRf7GU9VGNDJ_Tg@mail.gmail.com> <CAChr6Sz6xHtFWjOKrLp3sp9MpC-SoU9Sx=vk22ditjShA7B=Kg@mail.gmail.com> <CABcZeBOnE+gyNu7GarAfO0bptoPfzQQ=VKeWLdpJBDM=E4yhzg@mail.gmail.com> <CAChr6SxWE66jPRbnBRtwNSn3L+uNFkoFBbYNOBAkKDN05qotoA@mail.gmail.com> <CABcZeBOy8ogJrmFajxX1pqjqgnE61gE=c3CWz+pp34NWHmGKbw@mail.gmail.com> <03e15760-dfce-cd7b-baea-56ac70d92192@cs.tcd.ie> <CABcZeBMquubsGvt8UssiyFU_ZuQK67rHN_KBXY+iKSNayJFZew@mail.gmail.com> <d9402fe2-2ab3-f60f-c478-dc1df5bd4402@cs.tcd.ie> <CABcZeBNC9YBGMs0b84DFDB-FU7fKXpzX+HP1H5KRcjYJ7kXr3w@mail.gmail.com> <CAChr6Szd0dAh-h_oGzD9-fvfm3bYZbFnFrfmEmnbtz6OcmH=UQ@mail.gmail.com> <CABcZeBNWeTs6wrqdWcRrM9CjxdyO3csWDuQ8kak0UAL+S+eK-Q@mail.gmail.com>
In-Reply-To: <CABcZeBNWeTs6wrqdWcRrM9CjxdyO3csWDuQ8kak0UAL+S+eK-Q@mail.gmail.com>
From: Rob Sayre <sayrer@gmail.com>
Date: Mon, 21 Oct 2019 13:12:55 -0700
Message-ID: <CAChr6SzMw6aMcRiVnCEi8PmDRYukZvd69FNGU=1jS5unnqAJZg@mail.gmail.com>
To: Eric Rescorla <ekr@rtfm.com>
Cc: Stephen Farrell <stephen.farrell@cs.tcd.ie>, "TLS@ietf.org" <tls@ietf.org>
Content-Type: multipart/alternative; boundary="000000000000da2ae20595714fa3"
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/cHjtBoPzf7N3yUpAobTu_mXJmy8>
Subject: Re: [TLS] draft-ietf-tls-esni feedback
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "This is the mailing list for the Transport Layer Security working group of the IETF." <tls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tls>, <mailto:tls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tls/>
List-Post: <mailto:tls@ietf.org>
List-Help: <mailto:tls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tls>, <mailto:tls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 21 Oct 2019 20:13:10 -0000

On Mon, Oct 21, 2019 at 1:09 PM Eric Rescorla <ekr@rtfm.com>; wrote:

>
>
> On Mon, Oct 21, 2019 at 1:07 PM Rob Sayre <sayrer@gmail.com>; wrote:
>
>> On Mon, Oct 21, 2019 at 1:03 PM Eric Rescorla <ekr@rtfm.com>; wrote:
>>
>>> On Mon, Oct 21, 2019 at 12:48 PM Stephen Farrell <
>>> stephen.farrell@cs.tcd.ie>; wrote:
>>>
>>>>
>>>>
>>>> Not yet, that's true. OTOH, the 260 value wasn't decided on
>>>> the list either that I recall.
>>>
>>>
>>> IIRC it was there at the time of adoption.
>>>
>>
>> Yes, it's there in https://tools.ietf.org/html/draft-rescorla-tls-esni-00
>> .
>>
>> I think we should do better than "pretty sure it's right", though.
>>
>
> I don't believe that's what I said.
>

It is not. You said to look up the reasons for the requirements in the
draft in the mailing list archives and GH issues.

Stephen wrote:

"PS: I think 260 is the right max, didn't look it up just
now but I did some time ago and it seemed correct."

thanks,
Rob