[Curdle] [Technical Errata Reported] RFC8410 (6229)

RFC Errata System <rfc-editor@rfc-editor.org> Sun, 12 July 2020 15:41 UTC

Return-Path: <wwwrun@rfc-editor.org>
X-Original-To: curdle@ietfa.amsl.com
Delivered-To: curdle@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 32E723A0C59 for <curdle@ietfa.amsl.com>; Sun, 12 Jul 2020 08:41:07 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
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 DvWMk3eqYD0Z for <curdle@ietfa.amsl.com>; Sun, 12 Jul 2020 08:41:05 -0700 (PDT)
Received: from rfc-editor.org (rfc-editor.org [4.31.198.49]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C088E3A0C1B for <curdle@ietf.org>; Sun, 12 Jul 2020 08:41:04 -0700 (PDT)
Received: by rfc-editor.org (Postfix, from userid 30) id 8DD22F40745; Sun, 12 Jul 2020 08:40:32 -0700 (PDT)
To: simon@josefsson.org, ietf@augustcellars.com, rdd@cert.org, kaduk@mit.edu, daniel.migault@ericsson.com, rsalz@akamai.com
X-PHP-Originating-Script: 30:errata_mail_lib.php
From: RFC Errata System <rfc-editor@rfc-editor.org>
Cc: David.von.Oheimb@siemens.com, curdle@ietf.org, rfc-editor@rfc-editor.org
Content-Type: text/plain; charset=UTF-8
Message-Id: <20200712154032.8DD22F40745@rfc-editor.org>
Date: Sun, 12 Jul 2020 08:40:32 -0700 (PDT)
Archived-At: <https://mailarchive.ietf.org/arch/msg/curdle/X-BZnOwhhNo1IMTcaePnEeFSCs8>
Subject: [Curdle] [Technical Errata Reported] RFC8410 (6229)
X-BeenThere: curdle@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "List for discussion of potential new security area wg." <curdle.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/curdle>, <mailto:curdle-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/curdle/>
List-Post: <mailto:curdle@ietf.org>
List-Help: <mailto:curdle-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/curdle>, <mailto:curdle-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sun, 12 Jul 2020 15:41:14 -0000

The following errata report has been submitted for RFC8410,
"Algorithm Identifiers for Ed25519, Ed448, X25519, and X448 for Use in the Internet X.509 Public Key Infrastructure".

--------------------------------------
You may review the report below and at:
https://www.rfc-editor.org/errata/eid6229

--------------------------------------
Type: Technical
Reported by: David von Oheimb <David.von.Oheimb@siemens.com>

Section: 10.2

Original Text
-------------
An example of a self-issued PKIX certificate using Ed25519 to sign an
X25519 public key would be

Corrected Text
--------------


Notes
-----
The given example certificate is self-issued but not self-signed (which is fine because its public key cannot be used for signing).
It includes a subjectKeyIdentifier but not an authorityKeyIdentifier.

For not self-signed certificates RFC 5280 requires in section 4.2.1.1 (https://tools.ietf.org/html/rfc5280#section-4.2.1.1) that the authorityKeyIdentifier is present.

Thus for such an example certificate the authorityKeyIdentifier MUST be added in order to be a conforming certificate.
Otherwise, cert chain validation will be mislead to assume that the certificate is self-signed (while usually not actually verifying this supposition).

Instructions:
-------------
This erratum is currently posted as "Reported". If necessary, please
use "Reply All" to discuss whether it should be verified or
rejected. When a decision is reached, the verifying party  
can log in to change the status and edit the report, if necessary. 

--------------------------------------
RFC8410 (draft-ietf-curdle-pkix-10)
--------------------------------------
Title               : Algorithm Identifiers for Ed25519, Ed448, X25519, and X448 for Use in the Internet X.509 Public Key Infrastructure
Publication Date    : August 2018
Author(s)           : S. Josefsson, J. Schaad
Category            : PROPOSED STANDARD
Source              : CURves, Deprecating and a Little more Encryption
Area                : Security
Stream              : IETF
Verifying Party     : IESG