IETF Logo Mail Archive

[DNSOP] Re: Fwd: New Version Notification - draft-ietf-dnsop-domain-verification-techniques-05.txt

John R Levine <johnl@taugh.com> Thu, 11 July 2024 19:36 UTC

Return-Path: <johnl@taugh.com>
X-Original-To: dnsop@ietfa.amsl.com
Delivered-To: dnsop@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 71DE8C14F5F9 for <dnsop@ietfa.amsl.com>; Thu, 11 Jul 2024 12:36:51 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.109
X-Spam-Level:
X-Spam-Status: No, score=-2.109 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=iecc.com header.b="EBFlmp67"; dkim=pass (2048-bit key) header.d=taugh.com header.b="vKQTCZpg"
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id snNU-KNAHuHY for <dnsop@ietfa.amsl.com>; Thu, 11 Jul 2024 12:36:46 -0700 (PDT)
Received: from gal.iecc.com (gal.iecc.com [IPv6:2001:470:1f07:1126:0:43:6f73:7461]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3B44FC14F5E3 for <dnsop@ietf.org>; Thu, 11 Jul 2024 12:36:41 -0700 (PDT)
Received: (qmail 34961 invoked from network); 11 Jul 2024 19:36:40 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=iecc.com; h=date:message-id:from:to:cc:subject:in-reply-to:references:mime-version:content-type; s=888d66903448.k2407; bh=GqD3G5+uINRfJbh/A1DX+/UR/gRUtthMK7RrlJW4HJU=; b=EBFlmp67P6irkyNQeOnr4eE2sTpZZUdAVSBs+9TcUQzp0who5uDu2BgNO3/xv4io7j4o4NQAqBkftHunwQ12uSiUCnZrVOHoA9DJwu8L6QrGAakwqjkGcuJWjmIHOISvQuG9hvpqR05kpbgY6qzb1Y2zS1bMtUgXtBGUqwRcTtKzwhNbHTvTodLqEtm/J1YTpaKY5k3yuj8/kEEWoG1qHXnbuTmw7ILjmDrpk92hUskXn131C51Gvp7RvK8Sy4P3+qfjWJWuLtsTcWDipJs5QI68cOs9dmA/tCqXAS7H9REGVh3Gv43D5QHWJrXi2CF399iaBi7aGojG8TpTTvx41w==
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=taugh.com; h=date:message-id:from:to:cc:subject:in-reply-to:references:mime-version:content-type; s=888d66903448.k2407; bh=GqD3G5+uINRfJbh/A1DX+/UR/gRUtthMK7RrlJW4HJU=; b=vKQTCZpg8v1LHYaqv/9Cbuf6eSA/WLVgmlT8u5ez+DxTf/7Bj2aSPWX8G4gYpEDRdxQygYQdQY+HL7+s+kOyJuO41qkzbcw4w6bYBvxkNQa4mcKxS124cCEzRwi7mVPXO0RA5BHSTmfagiCxqVmbtWzTOy5SeRUeMMot3P8TTWV19peR2ZAasbkS2xOI1waw808feT3uQH2hLNwnyJ2vT0xn69DsK2YdBQC7d2HI3k9izBkcZk9Badt++qBUyzgpOUGj4AjxqmxHrRWBtZBxvBDfEl0RWKIqj5wMJ9bNX5q/DS3y8KBnLvOBzyvHoL+fXgZjKIjmfv4lH3nxUh3niQ==
Received: from ary.qy ([IPv6:2001:470:1f07:1126::78:696d:6170]) by imap.iecc.com ([IPv6:2001:470:1f07:1126::78:696d:6170]) with ESMTPS (TLS1.3 ECDHE-RSA CHACHA20-POLY1305 AEAD) via TCP6; 11 Jul 2024 19:36:40 -0000
Received: by ary.qy (Postfix, from userid 501) id A0ABA8F68B6C; Thu, 11 Jul 2024 15:36:39 -0400 (EDT)
Received: from localhost (localhost [127.0.0.1]) by ary.qy (Postfix) with ESMTP id 673C38F68B4E; Thu, 11 Jul 2024 15:36:39 -0400 (EDT)
Date: Thu, 11 Jul 2024 15:36:39 -0400
Message-ID: <a9a7ae1d-7a8b-c8da-f574-0a036f32f9d1@taugh.com>
From: John R Levine <johnl@taugh.com>
To: Tim Wicinski <tjw.ietf@gmail.com>
X-X-Sender: johnl@ary.qy
In-Reply-To: <CADyWQ+EqWf2ERkzM0yK4g=RdQ79JE5ip+Ncoc3McgzOXwRTavw@mail.gmail.com>
References: <172047471396.458153.12797163404923712142@dt-datatracker-5f88556585-j5r2h> <CADyWQ+GMHrL2ABd6hMhWujMEO=pDtDXsc3tGDPx72uYqxa4JbQ@mail.gmail.com> <20240709212356.43B838F44515@ary.qy> <CADyWQ+EqWf2ERkzM0yK4g=RdQ79JE5ip+Ncoc3McgzOXwRTavw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; format="flowed"; charset="us-ascii"
Message-ID-Hash: RASGSDHRMYUDXUJGKKEBBCDM6FZB6H34
X-Message-ID-Hash: RASGSDHRMYUDXUJGKKEBBCDM6FZB6H34
X-MailFrom: johnl@taugh.com
X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-dnsop.ietf.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header
CC: dnsop@ietf.org
X-Mailman-Version: 3.3.9rc4
Precedence: list
Subject: [DNSOP] Re: Fwd: New Version Notification - draft-ietf-dnsop-domain-verification-techniques-05.txt
List-Id: IETF DNSOP WG mailing list <dnsop.ietf.org>
Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/au0m97A7rOlTHz-V3g8fk8MzLx4>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dnsop>
List-Help: <mailto:dnsop-request@ietf.org?subject=help>
List-Owner: <mailto:dnsop-owner@ietf.org>
List-Post: <mailto:dnsop@ietf.org>
List-Subscribe: <mailto:dnsop-join@ietf.org>
List-Unsubscribe: <mailto:dnsop-leave@ietf.org>

On Thu, 11 Jul 2024, Tim Wicinski wrote:
>> A) Should verification records have a tag at the front of the data to
>> identify the record type? There's plenty of prior art for this, e.g.,
>> the 63 text records at stanford.edu. Or you might say that a
>> sufficiently long random token in the interesting part will prevent
>> false positives so there's no need.
>
> Are you referring to the "token=value" ? This gets discussed in the Token
> Metadata section, and perhaps the document is using the assumption of _
> foo-challenge.example.com makes it more relevant?

right, if the value is long enough there's little chance of some other 
random text record from a wildcard matching it by mistake

Regards,
John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly

v2.39.1 | Report a Bug | By Email | System Status