From nobody Wed May 31 10:00:51 2023 Return-Path: X-Original-To: cbor@ietfa.amsl.com Delivered-To: cbor@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3013DC151700 for ; Wed, 31 May 2023 10:00:51 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.899 X-Spam-Level: X-Spam-Status: No, score=-6.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-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 avTIbkur6Rcn for ; Wed, 31 May 2023 10:00:47 -0700 (PDT) Received: from smtp.zfn.uni-bremen.de (smtp.zfn.uni-bremen.de [IPv6:2001:638:708:32::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 8EBB5C1516E3 for ; Wed, 31 May 2023 10:00:46 -0700 (PDT) Received: from [192.168.217.124] (p548dc0f6.dip0.t-ipconnect.de [84.141.192.246]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.zfn.uni-bremen.de (Postfix) with ESMTPSA id 4QWbB408YSzDCbn; Wed, 31 May 2023 19:00:43 +0200 (CEST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.7\)) From: Carsten Bormann In-Reply-To: Date: Wed, 31 May 2023 19:00:43 +0200 Cc: cbor@ietf.org, Wolf McNally , Shannon.Appelcline@gmail.com X-Mao-Original-Outgoing-Id: 707245243.527227-e736b882dde3489db4377434ab0511c4 Content-Transfer-Encoding: quoted-printable Message-Id: References: To: Christopher Allen X-Mailer: Apple Mail (2.3608.120.23.2.7) Archived-At: Subject: Re: [Cbor] Updated Drafts for dCBOR I-D and Gordian Envelope Structured Data Format I-D & IANA Tag Registration X-BeenThere: cbor@ietf.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: "Concise Binary Object Representation \(CBOR\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 31 May 2023 17:00:51 -0000 On 2023-05-08, at 19:40, Christopher Allen = wrote: >=20 > Gordian Envelope Internet-Drafts, which have been recently submitted = to the Internet Engineering Task Force (IETF). I did a quick skim after today=E2=80=99s meeting. First a few comprehension questions: (1) Why do things that already identify themselves as Gordian Elements = (tag 201 to 206) need to be tagged again with 200? Is there any = function of this I=E2=80=99m missing? (2) What is 221? 224? (3) I don=E2=80=99t understand the way =E2=80=9Cknown values=E2=80=9D = (Section 6) mix with the things they are predicates over. Editorial comments: (a) Some forward slashes probably want to be backslashes. (You don=E2=80=99t need backslashes inside hex values in CBOR diagnostic = notation.) Did you check those examples? (b) I don=E2=80=99t know that you need =E2=80=9CCBOR hex=E2=80=9D for = all the examples, but if you do, can I recommend "CBOR pretty=E2=80=9D = format? (Generate with diag2pretty.rb, which is part of the cbor-diag = gem.) Technical comments: (4) I don=E2=80=99t find the crypto agility that was promised. You probably want to use algorithm identifiers from the COSE algorithms = registry (RFC 9053). Gr=C3=BC=C3=9Fe, Carsten