Re: [Multiformats] Multiformats Considered Harmful

Carsten Bormann <cabo@tzi.org> Wed, 06 September 2023 08:09 UTC

Return-Path: <cabo@tzi.org>
X-Original-To: multiformats@ietfa.amsl.com
Delivered-To: multiformats@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4CFA6C151092 for <multiformats@ietfa.amsl.com>; Wed, 6 Sep 2023 01:09:35 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.314
X-Spam-Level:
X-Spam-Status: No, score=-3.314 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, MIME_HTML_ONLY=0.1, MIME_HTML_ONLY_MULTI=0.001, MIME_QP_LONG_LINE=0.001, MPART_ALT_DIFF=0.79, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, 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
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 JNJLF8gmtnH6 for <multiformats@ietfa.amsl.com>; Wed, 6 Sep 2023 01:09:31 -0700 (PDT)
Received: from smtp.zfn.uni-bremen.de (smtp.zfn.uni-bremen.de [134.102.50.21]) (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 39633C14CE3F for <multiformats@ietf.org>; Wed, 6 Sep 2023 01:09:30 -0700 (PDT)
Received: from smtpclient.apple (unknown [91.223.100.20]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp.zfn.uni-bremen.de (Postfix) with ESMTPSA id 4RgZlq6vKNzDCh8; Wed, 6 Sep 2023 10:09:27 +0200 (CEST)
Content-Type: multipart/alternative; boundary="Apple-Mail-0CA977BC-4103-45CF-BF77-6E581E82C43E"
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0 (1.0)
From: Carsten Bormann <cabo@tzi.org>
In-Reply-To: <MW4PR02MB74285C15BBD628DD5F637C2EB7EFA@MW4PR02MB7428.namprd02.prod.outlook.com>
Date: Wed, 06 Sep 2023 10:09:15 +0200
Cc: multiformats@ietf.org, Murray Kucherawy <superuser@gmail.com>, Barry Leiba <barryleiba@computer.org>, Francesca Palombini <francesca.palombini@ericsson.com>, Roman Danyliw <rdd@cert.org>, Paul Wouters <paul.wouters@aiven.io>
Message-Id: <F814189D-031F-4CED-AC9A-F6049D010632@tzi.org>
References: <MW4PR02MB74285C15BBD628DD5F637C2EB7EFA@MW4PR02MB7428.namprd02.prod.outlook.com>
To: Michael Jones <michael_b_jones@hotmail.com>
X-Mailer: iPhone Mail (20G75)
Archived-At: <https://mailarchive.ietf.org/arch/msg/multiformats/kbvMFZJNEi7O2g0ucB15JEDu1e4>
Subject: Re: [Multiformats] Multiformats Considered Harmful
X-BeenThere: multiformats@ietf.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: Discussion related to the various Multiformats data formats <multiformats.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/multiformats>, <mailto:multiformats-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/multiformats/>
List-Post: <mailto:multiformats@ietf.org>
List-Help: <mailto:multiformats-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/multiformats>, <mailto:multiformats-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 06 Sep 2023 08:09:35 -0000

+1 very much. 

One nit:

Sent from mobile, sorry for terse

On 6. Sep 2023, at 04:04, Michael Jones <michael_b_jones@hotmail.com> wrote:

5. The “https://www.ietf.org/archive/id/draft-multiformats-multihash-07.html" rel="nofollow">multihash” specification relies on a non-standard representation of integers called “Dwarf”. Indeed, the referenced Dwarf document lists itself as being at http://dwarf.freestandards.org/" rel="nofollow">http://dwarf.freestandards.org/ – a URL that no longer exists!

Leb128 (not sure that the drafts call it by its common name) is the little endian variant of sdnv, which we do have as an rfc (please look that up for me…)

Grüße, Carsten