Re: [Ietf-dkim] Fwd: Re: [..] Recommendation for dkim signing

John Levine <johnl@taugh.com> Thu, 07 March 2024 13:45 UTC

Return-Path: <johnl@iecc.com>
X-Original-To: ietf-dkim@ietfa.amsl.com
Delivered-To: ietf-dkim@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2F8A0C18DB8B for <ietf-dkim@ietfa.amsl.com>; Thu, 7 Mar 2024 05:45:00 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.858
X-Spam-Level:
X-Spam-Status: No, score=-6.858 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, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001, 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="O+djHN06"; dkim=pass (2048-bit key) header.d=taugh.com header.b="RHezeSk1"
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 b_bUGmsEw77X for <ietf-dkim@ietfa.amsl.com>; Thu, 7 Mar 2024 05:44:54 -0800 (PST)
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 643D8C18DB8A for <ietf-dkim@ietf.org>; Thu, 7 Mar 2024 05:44:02 -0800 (PST)
Received: (qmail 58025 invoked from network); 7 Mar 2024 13:44:01 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=iecc.com; h=date:message-id:from:to:cc:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:cleverness; s=e2a765e9c4a1.k2403; bh=apl9Zv41T6GQzCOfqYo/UN2hisKH119ebLdpnXQkvH8=; b=O+djHN06ZUlIaAKPjqw2McEWqBfD4fhthveyn12SzB9+sKKviGN6WT7apOl1NnAb1KDygZTfUC4a794czO/rYwVLDYUv2mT8sTPJc6a8tinqwUPX3ggMHxpNAqSfeaoe5SUWpTQ/2nWgQ8JeCcGMlhLo6VnECmoVBDpTR79EcQKkt/RTjMa96URjb/+6ibmcxdZ5Q9EkpkKsk6tKjDHvbk5IoXDAWKHuVK25v/jcQVvr0nwADPJBFVwiBbYq6VSn2GDGnQ7Jnm3N34NGjUd3D+mWW+QKE1DBiEMAo2QhH5UrWkceB6D+48MV3Sc2TaDAIr0g/lytoPBfSSy6WPP36Q==
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=taugh.com; h=date:message-id:from:to:cc:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:cleverness; s=e2a765e9c4a1.k2403; bh=apl9Zv41T6GQzCOfqYo/UN2hisKH119ebLdpnXQkvH8=; b=RHezeSk11ZfEmYdpJIkpR4hv1TPmNay4dCXvmLBiNIo0vb8yc2Jsvv1jmHCYoc+3AZkDMLwMZmKPCI5nZRyFp+BK0dlCcAebS4qAtaopWuidodO6e1W5ApsNg71A6V5t3dYa0mqDEwNERVGSsIeSD8OM9y8FdWf5ORPXL1kdDVVbEWibzrkGWgbKMYnVo2wVVd96th5+BbJN4fKgZiLdQla2Qtawusi1rQq5qIwYwP32SoPGZpP46rwimgbQ7lVZycKtJ7DWC2yRlUbVuCu9Rzeuuvo+JypKskns4jsPSszekG/Kn1A51TUkX9Q8PzyHTzltJpxe22SKOg0rbBKY7A==
Received: from ary.local ([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; 07 Mar 2024 13:44:00 -0000
Received: by ary.local (Postfix, from userid 501) id 049A484A0913; Thu, 7 Mar 2024 09:43:59 -0400 (AST)
Date: Thu, 07 Mar 2024 09:43:59 -0400
Message-Id: <20240307134400.049A484A0913@ary.local>
From: John Levine <johnl@taugh.com>
To: ietf-dkim@ietf.org
Cc: ietf-dkim@kitterman.com
In-Reply-To: <C9EF0654-C410-46DC-B9A7-716E3ECA0B4E@kitterman.com>
Organization: Taughannock Networks
X-Headerized: yes
Cleverness: minimal
Mime-Version: 1.0
Content-type: text/plain; charset="utf-8"
Content-transfer-encoding: 8bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/ietf-dkim/dPaK20WZS1t9OaSINuJ2TKonDxk>
Subject: Re: [Ietf-dkim] Fwd: Re: [..] Recommendation for dkim signing
X-BeenThere: ietf-dkim@ietf.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: IETF DKIM List <ietf-dkim.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ietf-dkim>, <mailto:ietf-dkim-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ietf-dkim/>
List-Post: <mailto:ietf-dkim@ietf.org>
List-Help: <mailto:ietf-dkim-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ietf-dkim>, <mailto:ietf-dkim-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 07 Mar 2024 13:45:00 -0000

It appears that Scott Kitterman  <ietf-dkim@kitterman.com> said:
>This isn't horrible.  The main reason for RFC 8463 was, in my view, as a hedge for some discovery that suddenly made RSA
>obsolete, which hasn't happened yet.  From a standards perspective, it is there if needed.

Yes, that is exactly the reason I wrote it.

My MTA doesn't generate or validate Ed25519 signatures either. Maybe
someday when I have some spare time.

R's,
John