Re: [TLS] [ECH] Reverting the config ID change

Christopher Patton <cpatton@cloudflare.com> Tue, 23 February 2021 02:12 UTC

Return-Path: <cpatton@cloudflare.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 832CF3A2405 for <tls@ietfa.amsl.com>; Mon, 22 Feb 2021 18:12:50 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.099
X-Spam-Level:
X-Spam-Status: No, score=-2.099 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cloudflare.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 xcMa8YOt7GMy for <tls@ietfa.amsl.com>; Mon, 22 Feb 2021 18:12:49 -0800 (PST)
Received: from mail-qt1-x82b.google.com (mail-qt1-x82b.google.com [IPv6:2607:f8b0:4864:20::82b]) (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 5CC1F3A248E for <tls@ietf.org>; Mon, 22 Feb 2021 18:12:43 -0800 (PST)
Received: by mail-qt1-x82b.google.com with SMTP id x3so10882277qti.5 for <tls@ietf.org>; Mon, 22 Feb 2021 18:12:43 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=lcjiKJkLyrPHevHsrc606foG0Y0MwUwhK+M2lvhyGgQ=; b=aOslemLqN6FLTmhGqtqmDPXr3aiwZx+To4IniHiqEyiVGBswzyI3ULwbSKQ72lwNsA yWjSdYotqYydkwktgv7PsFYlztbs/4aor0m7+MQgQGgGjQVyeqNH2XARs0oQwIE+vf8T aTN3V8i1mAxKJ6stdEcyintffROe8k5HznH10=
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=lcjiKJkLyrPHevHsrc606foG0Y0MwUwhK+M2lvhyGgQ=; b=UVvV9Bw+d1uwxxJbG/wskOrDDNx2AXzUEaJuZmJZXWJAU3Kydl1THi0j5HrmGxLEMG 5ihiepL2GWr6Qynmxz2jj2ZA8ZzCkHCM8jxXrzYtpDHBNHgjo7ItD+X2anxaOV6H43uW Hg3yPTLX6YcUr0owKov9AH8a21mHt5vPz6Ighnf3PIGht7nvcnX95PkZxJF35QFEVpOU crUy0S8PS1rt59vwF7e/kdDoJH5TluqbHuvuztQYGNI+AQRQ6A5xgDmoJ4ZOZHLWOvps tt+a9ukE203smlKNW//73XN0qH9Fzubr/pnRergWqq4C+QD0tZ8nuPqjGQCeBaEF0En0 6Ehg==
X-Gm-Message-State: AOAM530Qs7oid/nXTy+vLmTx63gvNz1GKBjYKYH+5DdfaDIGs6+J5I0M 7iFYjSTjo/8X5skTO9D1yl76ZXeH9E7/EPEyqUrc1KS1S6k=
X-Google-Smtp-Source: ABdhPJyov3VGD/3km9iby443hCZ4I4NpbbU649HQnQMYnaxXDSCk8h4027klQa+z56JdrHydMcPsdmi+hGQcyoJqfcQ=
X-Received: by 2002:ac8:73d4:: with SMTP id v20mr4028928qtp.353.1614046362232; Mon, 22 Feb 2021 18:12:42 -0800 (PST)
MIME-Version: 1.0
References: <e44be9d1-bd0a-4e99-b092-b1b21c517b0e@www.fastmail.com> <7925717a-bcba-4b29-b12b-b47e622c62b3@www.fastmail.com>
In-Reply-To: <7925717a-bcba-4b29-b12b-b47e622c62b3@www.fastmail.com>
From: Christopher Patton <cpatton@cloudflare.com>
Date: Mon, 22 Feb 2021 18:12:30 -0800
Message-ID: <CAG2Zi23uZQmTbHBPBhH1i4byqPu=sjOKORKYkJOOspRxcBQgag@mail.gmail.com>
To: Christopher Wood <caw@heapingbits.net>
Cc: "TLS@ietf.org" <tls@ietf.org>
Content-Type: multipart/alternative; boundary="0000000000001288da05bbf774f0"
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/Iw7wOsipMS3ZEovg18rWbvotzN4>
Subject: Re: [TLS] [ECH] Reverting the config ID change
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: Tue, 23 Feb 2021 02:12:51 -0000

Hi Chris, all,


On the heels of this change, here's another PR that I'd folks to weigh in
> on:
>
>    https://github.com/tlswg/draft-ietf-tls-esni/pull/381
>
> Thanks,
> Chris
>

I support this change as-is. It seems to me that a 1-byte config_id
provides enough flexibility to support any use case we have envisioned thus
far. I suggest we pull the trigger on it.

Best,
Chris P.