IETF Logo Mail Archive

Re: [openpgp] Call for adoption of draft-gallagher-openpgp-replacementkey

Andrew Gallagher <andrewg@andrewg.com> Tue, 30 April 2024 18:14 UTC

Return-Path: <andrewg@andrewg.com>
X-Original-To: openpgp@ietfa.amsl.com
Delivered-To: openpgp@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A005CC15109C for <openpgp@ietfa.amsl.com>; Tue, 30 Apr 2024 11:14:27 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.095
X-Spam-Level:
X-Spam-Status: No, score=-2.095 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, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_BLOCKED=0.001, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_PASS=-0.001, 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=andrewg.com
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 0X7xOH2H0j4J for <openpgp@ietfa.amsl.com>; Tue, 30 Apr 2024 11:14:23 -0700 (PDT)
Received: from fum.andrewg.com (fum.andrewg.com [IPv6:2a01:4f9:c011:23ad::1]) (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 66283C14F6A0 for <openpgp@ietf.org>; Tue, 30 Apr 2024 11:14:22 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=andrewg.com; s=andrewg-com; t=1714500860; bh=6rCzVRJzLOAik+wh6XnfQbLUUj3DWygDSW+cuEz0pjQ=; h=From:Subject:Date:In-Reply-To:Cc:To:References:From; b=V6qD4kdEQMrq/0XvOz4waFVl7xlySaafEZ9EfWljhqKHnlQXzbVQS/9g79WdDR1AG 6GQ3KcfLrcIDD8siWRGy/qXy9J5dgYFkpCV9my0imOT/NNmI9rfKmXWDv4erj0HlaM XVsDyoTRsH52LrPAyVnEO4LOfm8YE+0wliZNRGX1T3m66+O5n3RpARW1Pi/mdjB1i5 VII134SG+12Ol6CfzwddAzC0pqqaV06KnVfJVY2BELLNhRTglpNN0NLPphc75YE8fy epcht105+JQGYerpkI+TpctAHss9Vodb2GugiK2A/2yQsIJKbdaDZKazeC9ppKW3wf qTrNGlvUKyc+w==
Received: from smtpclient.apple (serenity [IPv6:fc93:5820:7349:eda2:99a7::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by fum.andrewg.com (Postfix) with ESMTPSA id 0861A5DE60; Tue, 30 Apr 2024 18:14:19 +0000 (UTC)
From: Andrew Gallagher <andrewg@andrewg.com>
Message-Id: <FFD6D69E-9330-4D31-B177-60CF0CA8CA69@andrewg.com>
Content-Type: multipart/signed; boundary="Apple-Mail=_D2C888BE-AE95-4691-BB72-34B681570196"; protocol="application/pgp-signature"; micalg="pgp-sha512"
Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3731.700.6.1.1\))
Date: Tue, 30 Apr 2024 19:14:03 +0100
In-Reply-To: <-ZhU4QDZerCI_Kt-MHZTrNXJqwhvuFppoGASttd2jNFrH_83B_arkTl8PiUuvcSAg1Rh6ReonATelYM_3muxGnkTbclv9f-3Ssms7cXlAQ4=@protonmail.com>
Cc: Andrew Gallagher <andrewg=40andrewg.com@dmarc.ietf.org>, Daniel Kahn Gillmor <dkg@fifthhorseman.net>, Simon Josefsson <simon@josefsson.org>, IETF OpenPGP WG <openpgp@ietf.org>
To: Daniel Huigens <d.huigens=40protonmail.com@dmarc.ietf.org>
References: <87o7anhybr.fsf@fifthhorseman.net> <87jzkunest.fsf@fifthhorseman.net> <87y199g67k.fsf@kaka.sjd.se> <A0B535B4-215B-4159-9F39-0D33C24ECF2F@andrewg.com> <87frvhnhx0.fsf@fifthhorseman.net> <74AAE7BF-BD6C-4F27-9BFF-A4AA972056A4@andrewg.com> <tPdBr7QK7VoBsKag0QafjtDv9mB_jBTxHI00f_gSyM8SnUPkPukP2FqmSc-zcccXkvl13s8pDhnuNr9JkzgnY_XVNJlEEpUpqWvN1Ufw2Jg=@protonmail.com> <64E6E654-BE59-4F7F-83ED-34E9AFA89E52@andrewg.com> <YdQAqCSppzuMJIV23pd0CROjA3ATRR-PLn6ojVQQLi3pJqDnd6KBbLQaDpCa5z3Qlgqe80SFzjzrl5hfwk-m08oBiFM4ppPuyAi3iOOUNr4=@protonmail.com> <25809E9B-BCD2-4205-B4E7-147F72887268@andrewg.com> <-ZhU4QDZerCI_Kt-MHZTrNXJqwhvuFppoGASttd2jNFrH_83B_arkTl8PiUuvcSAg1Rh6ReonATelYM_3muxGnkTbclv9f-3Ssms7cXlAQ4=@protonmail.com>
X-Mailer: Apple Mail (2.3731.700.6.1.1)
Archived-At: <https://mailarchive.ietf.org/arch/msg/openpgp/hWmn9Lz0p1-KqWZPqJIV8BIwH24>
Subject: Re: [openpgp] Call for adoption of draft-gallagher-openpgp-replacementkey
X-BeenThere: openpgp@ietf.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: "Ongoing discussion of OpenPGP issues." <openpgp.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/openpgp>, <mailto:openpgp-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/openpgp/>
List-Post: <mailto:openpgp@ietf.org>
List-Help: <mailto:openpgp-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/openpgp>, <mailto:openpgp-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 30 Apr 2024 18:14:27 -0000

On 30 Apr 2024, at 16:47, Daniel Huigens <d.huigens=40protonmail.com@dmarc.ietf.org> wrote:
> 
>> Yes, I did consider that we could define a “trust equivalence” signature that would be closer conceptually (and cryptographically) to a subkey binding signature than to a certification. But I’m not sure that belongs here either, and it certainly opens a lot more questions.
> 
> But I'm not sure we need a new signature type for that; we could just
> interpret a third-party certification with type ID 0x13 (Positive
> certification of a User ID and Public-Key packet) made by a key with
> the same User ID as having that meaning, for example? Then we don't
> need any new mechanism for this.

We could, however this would be a change in WoT semantics that people may find surprising. It also only works on keys with UserIDs, which we cannot assume in v6.

A

v2.26.15 | Report a Bug | By Email | System Status