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charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: cose@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.96.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: cose@ietf.org Message-ID: <155749801841.2950.5247747811817682942@ietfa.amsl.com> Date: Fri, 10 May 2019 07:20:18 -0700 Archived-At: Subject: [COSE] I-D Action: draft-ietf-cose-hash-sig-03.txt X-BeenThere: cose@ietf.org X-Mailman-Version: 2.1.29 List-Id: CBOR Object Signing and Encryption List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 May 2019 14:20:19 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the CBOR Object Signing and Encryption WG of the IETF. Title : Use of the Hash-based Signature Algorithm with CBOR Object Signing and Encryption (COSE) Author : Russ Housley Filename : draft-ietf-cose-hash-sig-03.txt Pages : 22 Date : 2019-05-10 Abstract: This document specifies the conventions for using the HSS/LMS hash- based signature algorithm with the CBOR Object Signing and Encryption (COSE) syntax. The HSS/LMS algorithm is one form of hash-based digital signature; it is described in RFC 8554. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-cose-hash-sig/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-cose-hash-sig-03 https://datatracker.ietf.org/doc/html/draft-ietf-cose-hash-sig-03 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-cose-hash-sig-03 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Fri May 10 07:23:19 2019 Return-Path: X-Original-To: cose@ietfa.amsl.com Delivered-To: cose@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D84AF1201DD for ; Fri, 10 May 2019 07:23:14 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.899 X-Spam-Level: X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, 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 cDBp8ngKGMD5 for ; Fri, 10 May 2019 07:23:12 -0700 (PDT) Received: from mail.smeinc.net (mail.smeinc.net [209.135.209.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 2D6C41200B4 for ; Fri, 10 May 2019 07:23:10 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by mail.smeinc.net (Postfix) with ESMTP id ED41D300687 for ; Fri, 10 May 2019 10:03:51 -0400 (EDT) X-Virus-Scanned: amavisd-new at mail.smeinc.net Received: from mail.smeinc.net ([127.0.0.1]) by localhost (mail.smeinc.net [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id BzGSkC4lziFF for ; Fri, 10 May 2019 10:03:50 -0400 (EDT) Received: from a860b60074bd.fios-router.home (unknown [138.88.156.37]) by mail.smeinc.net (Postfix) with ESMTPSA id CFF21300471 for ; Fri, 10 May 2019 10:03:50 -0400 (EDT) From: Russ Housley Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.8\)) Date: Fri, 10 May 2019 10:23:07 -0400 References: <155749801841.2950.5247747811817682942@ietfa.amsl.com> To: cose In-Reply-To: <155749801841.2950.5247747811817682942@ietfa.amsl.com> Message-Id: <93A2E6AB-3530-412D-B7BB-EF26D74E19D5@vigilsec.com> X-Mailer: Apple Mail (2.3445.104.8) Archived-At: Subject: Re: [COSE] I-D Action: draft-ietf-cose-hash-sig-03.txt X-BeenThere: cose@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: CBOR Object Signing and Encryption List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 May 2019 14:23:15 -0000 This update resolves comments received on Section 1.1, which also lead = to the inclusion of a reference to Shor's algorithm. This update also changes the [HASHSIG] reference to point to RFC 8554. Russ > On May 10, 2019, at 10:20 AM, internet-drafts@ietf.org wrote: >=20 >=20 > A New Internet-Draft is available from the on-line Internet-Drafts = directories. > This draft is a work item of the CBOR Object Signing and Encryption WG = of the IETF. >=20 > Title : Use of the Hash-based Signature Algorithm = with CBOR Object Signing and Encryption (COSE) > Author : Russ Housley > Filename : draft-ietf-cose-hash-sig-03.txt > Pages : 22 > Date : 2019-05-10 >=20 > Abstract: > This document specifies the conventions for using the HSS/LMS hash- > based signature algorithm with the CBOR Object Signing and = Encryption > (COSE) syntax. The HSS/LMS algorithm is one form of hash-based > digital signature; it is described in RFC 8554. >=20 >=20 > The IETF datatracker status page for this draft is: > https://datatracker.ietf.org/doc/draft-ietf-cose-hash-sig/ >=20 > There are also htmlized versions available at: > https://tools.ietf.org/html/draft-ietf-cose-hash-sig-03 > https://datatracker.ietf.org/doc/html/draft-ietf-cose-hash-sig-03 >=20 > A diff from the previous version is available at: > https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-cose-hash-sig-03 >=20 >=20 > Please note that it may take a couple of minutes from the time of = submission > until the htmlized version and diff are available at tools.ietf.org. >=20 > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ From nobody Tue May 14 05:51:31 2019 Return-Path: X-Original-To: cose@ietf.org Delivered-To: cose@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 702EE12001B; Tue, 14 May 2019 05:51:29 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: IETF Meeting Session Request Tool To: Cc: ivaylo@ackl.io, cose-chairs@ietf.org, kaduk@mit.edu, cose@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.96.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <155783828941.30130.16855410473523818949.idtracker@ietfa.amsl.com> Date: Tue, 14 May 2019 05:51:29 -0700 Archived-At: Subject: [COSE] cose - New Meeting Session Request for IETF 105 X-BeenThere: cose@ietf.org X-Mailman-Version: 2.1.29 List-Id: CBOR Object Signing and Encryption List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 May 2019 12:51:29 -0000 A new meeting session request has just been submitted by Ivaylo Petrov, a Chair of the cose working group. --------------------------------------------------------- Working Group Name: CBOR Object Signing and Encryption Area Name: Security Area Session Requester: Ivaylo Petrov Number of Sessions: 1 Length of Session(s): 1.5 Hours Number of Attendees: 60 Conflicts to Avoid: First Priority: ace cbor core lamps lpwan oauth saag secdispatch secevent suit stir Second Priority: cfrg emu Third Priority: 6tisch dispatch t2trg People who must be present: Matthew A. Miller Benjamin Kaduk Ivaylo Petrov Resources Requested: Special Requests: --------------------------------------------------------- From nobody Tue May 14 06:05:46 2019 Return-Path: X-Original-To: cose@ietfa.amsl.com Delivered-To: cose@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6777812004F; Tue, 14 May 2019 06:05:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.989 X-Spam-Level: X-Spam-Status: No, score=-1.989 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, T_SPF_PERMERROR=0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=ihtfp.com 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 kGjlaJhBi9-W; Tue, 14 May 2019 06:05:44 -0700 (PDT) Received: from mail2.ihtfp.org (MAIL2.IHTFP.ORG [204.107.200.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D5E9412001B; Tue, 14 May 2019 06:05:43 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by mail2.ihtfp.org (Postfix) with ESMTP id 6517DE2042; Tue, 14 May 2019 09:05:42 -0400 (EDT) Received: from mail2.ihtfp.org ([127.0.0.1]) by localhost (mail2.ihtfp.org [127.0.0.1]) (amavisd-maia, port 10024) with ESMTP id 28177-10; Tue, 14 May 2019 09:05:34 -0400 (EDT) Received: from securerf.ihtfp.org (99-46-190-172.lightspeed.tukrga.sbcglobal.net [99.46.190.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mocana.ihtfp.org", Issuer "IHTFP Consulting Certification Authority" (not verified)) by mail2.ihtfp.org (Postfix) with ESMTPS id 36CDDE2040; Tue, 14 May 2019 09:05:34 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ihtfp.com; s=default; t=1557839134; bh=gvwSZr9k1o5ntUSoim6A1vN99ToGpu8MqSAuCx6io6o=; h=From:To:Cc:Subject:Date; b=GO10Dk1k9DC5jTsTR0z8WKn/OHuma9z0gieX8CvzlnQ3ZbOBlc7QU3wz16uPzIA8h nPJ7m8KJGFTtSAn7JUX0z0C5JvGO8h6Zz/zhrZviqChHDnRABam20twAPzS5fqMQRD BodMws0BvnI83ZhcfochANzDUSXvA1owR2jITWBU= Received: (from warlord@localhost) by securerf.ihtfp.org (8.15.2/8.15.2/Submit) id x4ED5TiP020941; Tue, 14 May 2019 09:05:29 -0400 From: Derek Atkins To: suit@ietf.org, cose@ietf.org Cc: kaduk@mit.edu Date: Tue, 14 May 2019 09:05:28 -0400 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Virus-Scanned: Maia Mailguard 1.0.2a Archived-At: Subject: [COSE] draft-atkins-suit-cose-walnutdsa X-BeenThere: cose@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: CBOR Object Signing and Encryption List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 May 2019 13:05:45 -0000 Hi everyone, I have submitted a new draft on how to use WalnutDSA in COSE, targeting SUIT as a viable use-case. WalnutDSA is in use for a secure boot solution now; specifying how to use it in a standard way would help others leverage the technology (or at least ensure there are no conflicts with others). I have tried to follow the framework of the Hash-based signature integration (with Russ' approval). -derek -- Derek Atkins 617-623-3745 derek@ihtfp.com www.ihtfp.com Computer and Internet Security Consultant From nobody Thu May 16 08:55:35 2019 Return-Path: X-Original-To: cose@ietfa.amsl.com Delivered-To: cose@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 16C2B12028C for ; Thu, 16 May 2019 08:55:33 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.899 X-Spam-Level: X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=unavailable autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=ackl-io.20150623.gappssmtp.com 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 nBDK52ay3Fzd for ; Thu, 16 May 2019 08:55:31 -0700 (PDT) Received: from mail-wr1-x432.google.com (mail-wr1-x432.google.com [IPv6:2a00:1450:4864:20::432]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C5AD312028F for ; Thu, 16 May 2019 08:55:16 -0700 (PDT) Received: by mail-wr1-x432.google.com with SMTP id h4so3982903wre.7 for ; Thu, 16 May 2019 08:55:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ackl-io.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=CXID4UX0ZvApCOtSa58KBYG+IMkH3co60xGXv4O6QBg=; b=C6Jap50djRzNjR23/ONfoDF6nM3fgg2FBg8mWDEwU0PpCMH6jkyY1hADAFXqUe/HFq O531x8o/DXgzcwCduxM44ebOz366DUOGoW6y4HkfdRALSNaelXM1BIh6yA0yTIPW4q2K NEdWOhNA/V/6P13BkLbLgJrA8nxeu932M5UbHWWcRjaTaADOoBQTR4zbgByo2aII/zxU oyNZBkc/qmWTlF3VQM3Yzg0yGE6JWyvweAaoYSPh3OZmFFaTWktQXemkoup4Ba4vD3Em wp+5KdRBnISJH6WYabEQISRnym3l4N9+FFDLHJyKyrXZI84yUmSjCEqlzMUVDsg+uLZ7 gKQA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=CXID4UX0ZvApCOtSa58KBYG+IMkH3co60xGXv4O6QBg=; b=EIWDr4DV7u/o9Ogwn4wDFQ8vfvepcR7WIt5hq00qsf8AWJbeF41v0Mdl/USpBfwlM/ qKtBablZPzGQ8X9Aok6UF/Uy9gQMznx5reTDxz3LLapregv1ayVAat6d5Lf2CCzJCzFB qRMAyLSzdr7uH4UZr5o3ZfIuL8MI/HhRPMxwg1APeZLGWbAdagOgwROtIt+IqD9/csXx byRPN69pE5STHfd3NFPedIgv/3eswzNEBOg//fMYcNYTOtrSKNjtVFywxzbkA4boNAql r8B1rO92/gbDlSbUiQY72zcH06ze7o9wlVy5eUT63UBGZibHiH3K9DXC8gfzvkULcIxP GVgA== X-Gm-Message-State: APjAAAUWn+yNVMB6XBDY0Itk5xD0F6Toh8Sh4AshKS/bzPtdddBOwaBK MPjM6B57/7yNhZcOZDAcyFpsvUVwuNnS5TVN0pDzzn0mqQ4= X-Google-Smtp-Source: APXvYqxSCMlYto7IZ54IYvMxuRq69/ZfeyceH3Zp+2NeEbtzWxWUKAzdd6cSPM+T2jnOiQPVURmBPY14wtscPvSGIhQ= X-Received: by 2002:a5d:4988:: with SMTP id r8mr20058668wrq.57.1558022114683; Thu, 16 May 2019 08:55:14 -0700 (PDT) MIME-Version: 1.0 References: <012001d4f93f$a5685100$f038f300$@augustcellars.com> In-Reply-To: From: ivaylo petrov Date: Thu, 16 May 2019 17:54:48 +0200 Message-ID: To: cose Cc: cose-chairs@ietf.org Content-Type: multipart/alternative; boundary="000000000000b2be8c0589034ad4" Archived-At: Subject: Re: [COSE] =?utf-8?q?=F0=9F=94=94_WG_Last_Call_of_draft-ietf-cose-ha?= =?utf-8?q?sh-sig-02?= X-BeenThere: cose@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: CBOR Object Signing and Encryption List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 May 2019 15:55:33 -0000 --000000000000b2be8c0589034ad4 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear all, Thank you all for your feedback in person or on the list! The WG last call ended a while ago and the chairs are not aware of any objections and a number of people have voiced their support for this document to progress past the WGLC. Therefore, we will start with the Shepherd Write-Up and proceed to AD Evaluation. Best regards, - Matthew and Ivaylo COSE Chairs On Mon, Apr 22, 2019 at 11:42 PM Russ Housley wrote: > Jim: > > Yes, we need to make sure that the examples are correct when the IANA > assignments are made. > > Please provide a pointer to the GitHub code that you want to reference, > and I'll put it into my edit buffer so it is not forgotten. > > Russ > > > On Apr 22, 2019, at 3:14 PM, Jim Schaad wrote: > > I have no problems with this draft progressing. > > There are two issues that need to be addressed at some point in the futur= e: > > > 1. The examples will need to be re-generated after IANA has completed > the registration. > 2. The examples are dumped in the format that I use on the example > github site. There should probably be a pointer to that github site a= s > well as changing the format of the dump to be CBOR diagnostics. > > > > Jim > > > *From:* COSE *On Behalf Of *ivaylo petrov > *Sent:* Wednesday, April 10, 2019 2:47 PM > *To:* cose > *Cc:* draft-ietf-cose-hash-sig@ietf.org > *Subject:* [COSE] =F0=9F=94=94 WG Last Call of draft-ietf-cose-hash-sig-0= 2 > > Dear all, > > As discussed during the Prague meeting, this email starts a working group > last call for draft-ietf-cose-hash-sig-02 [1], ending on > > 23:59:39 CET on Thursday, April 25, 2019. > > Please review it and either provide your comments and feedback or if you > review the documents without finding concerns, please say so on the list. > > As a reminder, if you are aware of any patent claims that might apply to > this draft, please review BCP 78 and BCP 79 and make any appropriate IPR > declarations as soon as possible. If you are not sure whether you need to > make a declaration or not, > please talk to the chairs and we will help. > > Best regards, > - Matthew and Ivaylo > COSE Chairs > > [1]: https://datatracker.ietf.org/doc/draft-ietf-cose-hash-sig/ > > > _______________________________________________ > COSE mailing list > COSE@ietf.org > https://www.ietf.org/mailman/listinfo/cose > --000000000000b2be8c0589034ad4 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Dear all,

Thank you all for your feedback in person or on the list! The WG la= st call ended a while=C2=A0ago and the chairs are not aware of any objectio= ns and a number of people have voiced their support for this document to pr= ogress past the WGLC. Therefore, we will start with the Shepherd Write-Up a= nd proceed to AD Evaluation.

Best regards,
- Matt= hew and Ivaylo
COSE Chairs
=

On Mon, Apr 22, 2019 at 11:42 PM R= uss Housley <h= ousley@vigilsec.com> wrote:
Jim:

Yes, we need to make sure t= hat the examples are correct when the IANA assignments are made.

Please provide a pointer to the GitHub code that you want to refer= ence, and I'll put it into my edit buffer so it is not forgotten.
=

Russ


<= div>On Apr 22, 2019, at 3:14 PM, Jim Schaad <ietf@augustcellars.com> wrote:
I have no probl= ems with this draft progressing.
=C2=A0=
There are two issues that need to be addressed at so= me point in the future:
=C2=A0
    <= li class=3D"gmail-m_-1702873233511512466gmail-m_5258459867634651429MsoListP= aragraph" style=3D"margin:0in 0in 0.0001pt;font-size:11pt;font-family:Calib= ri,sans-serif">The examples will need to be re-generated after IANA has com= pleted the registration.
  1. The examples are= dumped in the format that I use on the example github site.=C2=A0 There sh= ould probably be a pointer to that github site as well as changing the form= at of the dump to be CBOR diagnostics.
= =C2=A0
=C2=A0
Jim=
=C2=A0
=C2= =A0
From:= =C2=A0COSE <cose-bounces@ietf.or= g>=C2=A0On Behalf Of= =C2=A0ivaylo petrov
Sent:=C2=A0Wednesday, April 10, 2019 2:47 PM
To:=C2=A0cose <cose@ietf.org>
Cc:<= span class=3D"gmail-m_-1702873233511512466gmail-m_5258459867634651429Apple-= converted-space">=C2=A0= draft-ietf-cose-hash-sig@ietf.org
Subject:= =C2=A0[COSE]=C2=A0=F0=9F=94=94=C2=A0WG Last Call of draft-ietf-cose-hash-sig-02
=C2=A0
Dear all,
=
=C2=A0
= As discussed during the Prague meeting, this email starts a wo= rking group last call for draft-ietf-cose-hash-sig-02 [1], ending on= =
=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= 23:59:39 CET on Thursday, April 25, 2019.
<= /u>=C2=A0
Please review it and either provide your comments and feedback or if = you review the documents without finding concerns, please say so on the lis= t.
=C2=A0
As a reminder, if you are aware o= f any patent claims that might apply to this draft, please review BCP 78 an= d BCP 79 and make any appropriate IPR declarations as soon as possible. If = you are not sure whether you need to make a declaration or not,=C2=A0
please talk to the chairs and we will help.<= span style=3D"font-family:Verdana,sans-serif;color:rgb(11,83,148)"><= u>
=C2=A0
Best regards,
- Matthew and Ivaylo
CO= SE Chairs

__________________________= _____________________
COSE mailing list
COSE@ietf.org
https://www.ietf.org/mailman/listinfo/cose
--000000000000b2be8c0589034ad4-- From nobody Fri May 24 01:10:01 2019 Return-Path: X-Original-To: cose@ietfa.amsl.com Delivered-To: cose@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 10BA61200D5 for ; Fri, 24 May 2019 01:10:00 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.901 X-Spam-Level: X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-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 HzDlPr0-IwWN for ; Fri, 24 May 2019 01:09:57 -0700 (PDT) Received: from mail.hezmatt.org (erdhenne.tobermorytech.com [178.63.85.14]) by ietfa.amsl.com (Postfix) with ESMTP id B36281200B7 for ; Fri, 24 May 2019 01:09:57 -0700 (PDT) Received: from mistress.home.hezmatt.org (2001-44b8-510e-8600-5c0c-75fc-ff42-0a4a.static.ipv6.internode.on.net [IPv6:2001:44b8:510e:8600:5c0c:75fc:ff42:a4a]) by mail.hezmatt.org (Postfix) with ESMTPSA id A36A316D839 for ; Fri, 24 May 2019 08:09:55 +0000 (UTC) Received: by mistress.home.hezmatt.org (Postfix, from userid 1000) id 66139B694C; Fri, 24 May 2019 18:09:47 +1000 (AEST) Date: Fri, 24 May 2019 18:09:47 +1000 From: Matt Palmer To: cose@ietf.org Message-ID: <20190524080947.3i2dwqmtpt4kk2ty@hezmatt.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: NeoMutt/20170113 (1.7.2) Archived-At: Subject: [COSE] Feedback on draft-ietf-cose-webauthn-algorithms-00 X-BeenThere: cose@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: CBOR Object Signing and Encryption List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 May 2019 08:10:00 -0000 I'm looking to implement support for sec256k1 in a JWS library. The specifications for the NIST curves in RFC7518 are all of the form "ECDSA using and ", which makes it very obvious what's going on. However, the definitions in this draft don't make mention of the hash algorithm to be used. My vague understanding is that the hash algorithm used for ECDSA should be equal in size with the curve used, so my assumption is that these signatures are using SHA-256, however I think it would be extremely useful if that were made explicit in the specification, to prevent any possible confusion. Thanks, - Matt From nobody Fri May 24 12:17:10 2019 Return-Path: X-Original-To: cose@ietfa.amsl.com Delivered-To: cose@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5FB611200A1 for ; Fri, 24 May 2019 12:17:09 -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, RCVD_IN_DNSWL_NONE=-0.0001, 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 BU_OUZMlILVN for ; Fri, 24 May 2019 12:17:07 -0700 (PDT) Received: from mail2.augustcellars.com (augustcellars.com [50.45.239.150]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D313312011C for ; Fri, 24 May 2019 12:17:01 -0700 (PDT) Received: from Jude (73.180.8.170) by mail2.augustcellars.com (192.168.0.56) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 24 May 2019 12:16:52 -0700 From: Jim Schaad To: 'Matt Palmer' , References: <20190524080947.3i2dwqmtpt4kk2ty@hezmatt.org> In-Reply-To: <20190524080947.3i2dwqmtpt4kk2ty@hezmatt.org> Date: Fri, 24 May 2019 12:16:50 -0700 Message-ID: <007d01d51265$3f32ac20$bd980460$@augustcellars.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Content-Language: en-us Thread-Index: AQLCgDlmwiVnlczI0mjZrN65MFgTdKSfyXWw X-Originating-IP: [73.180.8.170] Archived-At: Subject: Re: [COSE] Feedback on draft-ietf-cose-webauthn-algorithms-00 X-BeenThere: cose@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: CBOR Object Signing and Encryption List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 May 2019 19:17:10 -0000 This is a difference between how COSE and JOSE operate. For JOSE, the hash and curve are specified and fixed. For COSE, the hash is fixed and the following text exists: The ECDSA signature algorithm is parameterized with a hash function (h). In the event that the length of the hash function output is greater than the group of the key, the leftmost bytes of the hash output are used. I would agree that the document should be updated to reflect the difference in behavior between the two standards. Jim > -----Original Message----- > From: COSE On Behalf Of Matt Palmer > Sent: Friday, May 24, 2019 1:10 AM > To: cose@ietf.org > Subject: [COSE] Feedback on draft-ietf-cose-webauthn-algorithms-00 > > I'm looking to implement support for sec256k1 in a JWS library. The > specifications for the NIST curves in RFC7518 are all of the form "ECDSA using > and ", which makes it very obvious what's going on. > However, the definitions in this draft don't make mention of the hash > algorithm to be used. > > My vague understanding is that the hash algorithm used for ECDSA should be > equal in size with the curve used, so my assumption is that these signatures > are using SHA-256, however I think it would be extremely useful if that were > made explicit in the specification, to prevent any possible confusion. > > Thanks, > - Matt > > _______________________________________________ > COSE mailing list > COSE@ietf.org > https://www.ietf.org/mailman/listinfo/cose