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Date: Wed, 02 Mar 2022 16:15:26 +0000
From: mcharlesr@gmail.com
To: anima@ietf.org, "Damm, Benjamin" <benjamin.damm@itron.com>,  "von Oheimb, David" <david.von.oheimb@siemens.com>, "Eliot Lear (elear)" <elear@cisco.com>,  esko.dijk@iotconsultancy.nl, hendrik.brockhaus@siemens.com, kpanos@amazon.com,  "SELLAMI, MEROUANE" <merouane.sellami@atos.net>, oleg.pekar.2017@gmail.com,  "Schellenbaum Aurelio Ruben Dario (scnm)" <scnm@zhaw.ch>, steffen.fries@siemens.com,  Peter van der Stok <stokcons@bbhmail.nl>, thomas-werner@siemens.com,  "TARASOV, Viktor" <viktor.tarasov@atos.net>, ynaka96@gmail.com
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Subject: [Anima] Invitation: BRSKI design team 1Q2022 @ Weekly from 10:00 to 11:00 on Thursday (EST) (anima@ietf.org)
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You have been invited to the following event.

Title: BRSKI design team 1Q2022
Working on constrained-voucher and brski-async-enroll.resending&nbsp;
When: Weekly from 10:00 to 11:00 on Thursday Eastern Time - Toronto
Where: https://whereby.com/sandelman
Calendar: anima@ietf.org
Who:
     * mcharlesr@gmail.com - organizer
     * anima@ietf.org
     * Damm, Benjamin
     * von Oheimb, David
     * Eliot Lear (elear)
     * esko.dijk@iotconsultancy.nl
     * hendrik.brockhaus@siemens.com
     * kpanos@amazon.com
     * SELLAMI, MEROUANE
     * oleg.pekar.2017@gmail.com
     * Schellenbaum Aurelio Ruben Dario (scnm)
     * steffen.fries@siemens.com
     * Peter van der Stok
     * thomas-werner@siemens.com
     * TARASOV, Viktor
     * ynaka96@gmail.com

Event details:  
https://calendar.google.com/calendar/event?action=VIEW&eid=MmY5NWpuc2JqYW00ODY3N2pkNmoxN2c1MGUgYW5pbWFAaWV0Zi5vcmc&tok=MTkjbWNoYXJsZXNyQGdtYWlsLmNvbWZlZmE2MmFlYmM1MGU0NmUzMDMxYTFjZWM0ZGJlNDdhMzJkOGNlNDE&ctz=America%2FToronto&hl=en&es=0

Invitation from Google Calendar: https://calendar.google.com/calendar/

You are receiving this courtesy email at the account anima@ietf.org because  
you are an attendee of this event.

To stop receiving future updates for this event, decline this event.  
Alternatively you can sign up for a Google account at  
https://calendar.google.com/calendar/ and control your notification  
settings for your entire calendar.

Forwarding this invitation could allow any recipient to send a response to  
the organizer and be added to the guest list, or invite others regardless  
of their own invitation status, or to modify your RSVP. Learn more at  
https://support.google.com/calendar/answer/37135#forwarding

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<span itemscope itemtype=3D"http://schema.org/InformAction"><span style=3D"=
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rson"><meta itemprop=3D"description" content=3D"Invitation from mcharlesr@g=
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wing event.</strong></h4><div style=3D"padding:2px"><span itemprop=3D"publi=
sher" itemscope itemtype=3D"http://schema.org/Organization"><meta itemprop=
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0;font-family:Arial,Sans-serif;font-size:13px;color:#888;white-space:nowrap=
;width:90px" valign=3D"top"><div><i style=3D"font-style:normal">When</i></d=
iv></td><td style=3D"padding-bottom:10px;font-family:Arial,Sans-serif;font-=
size:13px;color:#222" valign=3D"top"><div style=3D"text-indent:-1px"><time =
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if;font-size:13px;color:#888;white-space:nowrap;width:90px" valign=3D"top">=
<div><i style=3D"font-style:normal">Where</i></div></td><td style=3D"paddin=
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n=3D"top"><div style=3D"text-indent:-1px"><span itemprop=3D"location" items=
cope itemtype=3D"http://schema.org/Place"><span itemprop=3D"name" class=3D"=
notranslate">https://whereby.com/sandelman</span><span dir=3D"ltr"> (<a hre=
f=3D"https://www.google.com/url?q=3Dhttps%3A%2F%2Fwhereby.com%2Fsandelman&a=
mp;sa=3DD&amp;ust=3D1646669726233000&amp;usg=3DAOvVaw0f6tGfuUvZkJ7YLszZ3cfe=
" style=3D"color:#20c;white-space:nowrap" target=3D"_blank" itemprop=3D"map=
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 0;font-family:Arial,Sans-serif;font-size:13px;color:#888;white-space:nowra=
p;width:90px" valign=3D"top"><div><i style=3D"font-style:normal">Calendar</=
i></div></td><td style=3D"padding-bottom:10px;font-family:Arial,Sans-serif;=
font-size:13px;color:#222" valign=3D"top"><div style=3D"text-indent:-1px">a=
nima@ietf.org</div></td></tr><tr><td style=3D"padding:0 1em 10px 0;font-fam=
ily:Arial,Sans-serif;font-size:13px;color:#888;white-space:nowrap;width:90p=
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slate">anima@ietf.org</span><meta itemprop=3D"email" content=3D"anima@ietf.=
org"/></span></div></div></div></td></tr><tr><td style=3D"padding-right:10p=
x;font-family:Arial,Sans-serif;font-size:13px;color:#222;width:10px"><div s=
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l,Sans-serif;font-size:13px;color:#222"><div style=3D"text-indent:-1px"><di=
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#x2022;</span></div></td><td style=3D"padding-right:10px;font-family:Arial,=
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x"><p>Invitation from <a href=3D"https://calendar.google.com/calendar/" tar=
get=3D"_blank" style=3D"">Google Calendar</a></p><p>You are receiving this =
courtesy email at the account anima@ietf.org because you are an attendee of=
 this event.</p><p>To stop receiving future updates for this event, decline=
 this event. Alternatively you can sign up for a Google account at https://=
calendar.google.com/calendar/ and control your notification settings for yo=
ur entire calendar.</p><p>Forwarding this invitation could allow any recipi=
ent to send a response to the organizer and be added to the guest list, or =
invite others regardless of their own invitation status, or to modify your =
RSVP. <a href=3D"https://support.google.com/calendar/answer/37135#forwardin=
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Subject: Re: [Anima] Invitation: BRSKI design team 1Q2022 @ Weekly from 10:00 to 11:00 on Thursday (EST) (anima@ietf.org)
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--=-=-=
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mcharlesr@gmail.com wrote:
    > You have been invited to the following event.

    > Title: BRSKI design team 1Q2022

I was asked to repost this with a new name, because apparently some calenda=
rs
delete the entire sequence when one meeting is cancelled.


=2D-
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 I=C3=B8T consulti=
ng )
           Sandelman Software Works Inc, Ottawa and Worldwide





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Archived-At: <https://mailarchive.ietf.org/arch/msg/anima/tnqrO1mFNln2acT9s_-MfonOHGU>
Subject: Re: [Anima] [Iotops] [Secdispatch] I-D: Deploying Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Autonomic Networking Integrated Model and Approach WG of the IETF.

        Title           : An Autonomic Mechanism for Resource-based Network Services Auto-deployment
        Authors         : Joanna Dang
                          Sheng Jiang
                          Zongpeng Du
                          Yujing
	Filename        : draft-ietf-anima-network-service-auto-deployment-01.txt
	Pages           : 13
	Date            : 2022-03-03

Abstract:
   This document specifies an autonomic mechanism for resource-based
   network services deployment through the Autonomic Control Plane (ACP)
   in a network.  This mechanism uses the GeneRic Autonomic Signaling
   Protocol (GRASP) in [RFC8990] to exchange the information among the
   autonomic nodes so that the resource along the service path can be
   coordinated.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-anima-network-service-auto-deployment/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-anima-network-service-auto-deployment-01

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-network-service-auto-deployment-01


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts



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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Autonomic Networking Integrated Model and Approach WG of the IETF.

        Title           : JWS signed Voucher Artifacts for Bootstrapping Protocols
        Authors         : Michael Richardson
                          Thomas Werner
	Filename        : draft-ietf-anima-jws-voucher-02.txt
	Pages           : 14
	Date            : 2022-03-04

Abstract:
   RFC8366 defines a digital artifact called voucher as a YANG-defined
   JSON document that has been signed using a Cryptographic Message
   Syntax (CMS) structure.  This memo introduces a variant of the
   voucher structure in which CMS is replaced by the JSON Object Signing
   and Encryption (JOSE) mechanism described in RFC7515 to better
   support use-cases in which JOSE is preferred over CMS.

   In addition to explaining how the format is created, MIME types are
   registered and examples are provided.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-anima-jws-voucher/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-anima-jws-voucher-02

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-jws-voucher-02


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts



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Archived-At: <https://mailarchive.ietf.org/arch/msg/anima/RxKZ4McwwSk21Sma7GmS9nNcmcU>
Subject: [Anima] FW: New Version Notification for draft-ietf-anima-jws-voucher-02.txt
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Hello,

I just uploaded the new version of: draft-ietf-anima-jws-voucher-02

Main changes are:
- Added adoption call comments from Toerless. Changed from [RFCxxxx] to [TH=
ING] style for some key references.
- Updated references "I-D.ietf-anima-brski-async-enroll" switched to "I-D.i=
etf-anima-brski-prm"
- Switch from "JWS Compact Serialization" to "General JWS JSON Serializatio=
n", as focus is now on "General JWS JSON Serialization"
- Include Voucher representation in "General JWS JSON Serialization" syntax
- Include examples A1, A2, A3 using "General JWS JSON Serialization


Best regards
Thomas


> -----Original Message-----
> From: internet-drafts@ietf.org <internet-drafts@ietf.org>
> Sent: Freitag, 4. M=E4rz 2022 12:31
> To: Michael Richardson <mcr+ietf@sandelman.ca>; Werner, Thomas (T CST SEA=
-DE) <thomas-werner@siemens.com>
> Subject: New Version Notification for draft-ietf-anima-jws-voucher-02.txt
>=20
>=20
> A new version of I-D, draft-ietf-anima-jws-voucher-02.txt
> has been successfully submitted by Thomas Werner and posted to the IETF r=
epository.
>=20
> Name:		draft-ietf-anima-jws-voucher
> Revision:	02
> Title:		JWS signed Voucher Artifacts for Bootstrapping Protocols
> Document date:	2022-03-04
> Group:		anima
> Pages:		14
> URL:            https://eur01.safelinks.protection.outlook.com/?url=3Dhtt=
ps%3A%2F%2Fwww.ietf.org%2Farchive%2Fid%2Fdraft-ietf-
> anima-jws-voucher-02.txt&amp;data=3D04%7C01%7Cthomas-
> werner%40siemens.com%7C0bd166014ab44d9a947408d9fdd2713c%7C38ae3bcd95794fd=
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> 000&amp;sdata=3DsLuE1VWqdfdFzn4kaPEFOPOg8rxgUBDz2QYfOer5N9c%3D&amp;reserv=
ed=3D0
> Status:         https://eur01.safelinks.protection.outlook.com/?url=3Dhtt=
ps%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-ietf-anima-
> jws-voucher%2F&amp;data=3D04%7C01%7Cthomas-
> werner%40siemens.com%7C0bd166014ab44d9a947408d9fdd2713c%7C38ae3bcd95794fd=
4addab42e1495d55a%7C1%7C0%7C63781
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rved=3D0
> Htmlized:       https://eur01.safelinks.protection.outlook.com/?url=3Dhtt=
ps%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fhtml%2Fdraft-
> ietf-anima-jws-voucher&amp;data=3D04%7C01%7Cthomas-
> werner%40siemens.com%7C0bd166014ab44d9a947408d9fdd2713c%7C38ae3bcd95794fd=
4addab42e1495d55a%7C1%7C0%7C63781
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> 000&amp;sdata=3DON5joztOPLsl2h4oHRpzvOWiNl7ppVpyAMcxStWEbUI%3D&amp;reserv=
ed=3D0
> Diff:           https://eur01.safelinks.protection.outlook.com/?url=3Dhtt=
ps%3A%2F%2Fwww.ietf.org%2Frfcdiff%3Furl2%3Ddraft-ietf-
> anima-jws-voucher-02&amp;data=3D04%7C01%7Cthomas-
> werner%40siemens.com%7C0bd166014ab44d9a947408d9fdd2713c%7C38ae3bcd95794fd=
4addab42e1495d55a%7C1%7C0%7C63781
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> 000&amp;sdata=3DfNJy0q2G6S65JwLhtyR0mnYfPolCoDrCd4VRofFMv9U%3D&amp;reserv=
ed=3D0
>=20
> Abstract:
>    RFC8366 defines a digital artifact called voucher as a YANG-defined
>    JSON document that has been signed using a Cryptographic Message
>    Syntax (CMS) structure.  This memo introduces a variant of the
>    voucher structure in which CMS is replaced by the JSON Object Signing
>    and Encryption (JOSE) mechanism described in RFC7515 to better
>    support use-cases in which JOSE is preferred over CMS.
>=20
>    In addition to explaining how the format is created, MIME types are
>    registered and examples are provided.
>=20
>=20
>=20
>=20
> The IETF Secretariat
>=20


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Subject: [Anima] I-D Action: draft-ietf-anima-brski-prm-02.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Autonomic Networking Integrated Model and Approach WG of the IETF.

        Title           : BRSKI with Pledge in Responder Mode (BRSKI-PRM)
        Authors         : Steffen Fries
                          Thomas Werner
                          Eliot Lear
                          Michael C. Richardson
	Filename        : draft-ietf-anima-brski-prm-02.txt
	Pages           : 57
	Date            : 2022-03-04

Abstract:
   This document defines enhancements to bootstrapping a remote secure
   key infrastructure (BRSKI, [RFC8995]) to facilitate bootstrapping in
   domains featuring no or only timely limited connectivity between a
   pledge and the domain registrar.  It specifically targets situations,
   in which the interaction model changes from a pledge-initiator-mode,
   as used in BRSKI, to a pledge-responder-mode as described in this
   document.  To support both, BRSKI-PRM introduces a new registrar-
   agent component, which facilitates the communication between pledge
   and registrar during the bootstrapping phase.  For the establishment
   of a trust relation between pledge and domain registrar, BRSKI-PRM
   relies on the exchange of authenticated self-contained objects
   (signature-wrapped objects).  The defined approach is agnostic
   regarding the utilized enrollment protocol, deployed by the domain
   registrar to communicate with the Domain CA.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-anima-brski-prm/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-anima-brski-prm-02

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-brski-prm-02


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts



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From: "Fries, Steffen" <steffen.fries@siemens.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/anima/hROagAiiGV47M36_byK0jeymqEU>
Subject: [Anima] FW: I-D Action: draft-ietf-anima-brski-prm-02.txt
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Hello,

I just uploaded a new version of BRSKI-PRM. We plan to provide an overview =
of the changes in the ANIMA session of IETF 113

The main changes comprise:=20
   * Resolution of Issue #15 included additional signature on voucher from =
registrar in Section 5.1.4.2 and Section 5.1.1 to allow for provisional acc=
ept ending.  The
      verification of multiple signatures is described in Section 5.1.4.3
   *  Included representation for General JWS JSON Serialization for exampl=
es
   *  Included error responses from pledge if it is not able to create a pl=
edge-voucher request or an enrollment request in Section 5.1.4.1
   *  Removed open issue regarding handling of multiple CSRs and enrollment=
 responses during the bootstrapping as the initial target it the provisioni=
ng of a generic LDevID certificate.  The defined endpoint on the pledge may=
 also be used for management of further certificates.

Best regards
Steffen

-----Original Message-----
From: I-D-Announce <i-d-announce-bounces@ietf.org> On Behalf Of internet-dr=
afts@ietf.org
Sent: Freitag, 4. M=E4rz 2022 14:14
To: i-d-announce@ietf.org
Cc: anima@ietf.org
Subject: I-D Action: draft-ietf-anima-brski-prm-02.txt


A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
This draft is a work item of the Autonomic Networking Integrated Model and =
Approach WG of the IETF.

        Title           : BRSKI with Pledge in Responder Mode (BRSKI-PRM)
        Authors         : Steffen Fries
                          Thomas Werner
                          Eliot Lear
                          Michael C. Richardson
	Filename        : draft-ietf-anima-brski-prm-02.txt
	Pages           : 57
	Date            : 2022-03-04

Abstract:
   This document defines enhancements to bootstrapping a remote secure
   key infrastructure (BRSKI, [RFC8995]) to facilitate bootstrapping in
   domains featuring no or only timely limited connectivity between a
   pledge and the domain registrar.  It specifically targets situations,
   in which the interaction model changes from a pledge-initiator-mode,
   as used in BRSKI, to a pledge-responder-mode as described in this
   document.  To support both, BRSKI-PRM introduces a new registrar-
   agent component, which facilitates the communication between pledge
   and registrar during the bootstrapping phase.  For the establishment
   of a trust relation between pledge and domain registrar, BRSKI-PRM
   relies on the exchange of authenticated self-contained objects
   (signature-wrapped objects).  The defined approach is agnostic
   regarding the utilized enrollment protocol, deployed by the domain
   registrar to communicate with the Domain CA.


The IETF datatracker status page for this draft is:
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Internet-Drafts are also available by rsync at rsync.ietf.org::internet-dra=
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From nobody Fri Mar  4 10:15:31 2022
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Date: Fri, 4 Mar 2022 19:15:23 +0100
From: Toerless Eckert <tte@cs.fau.de>
To: anima@ietf.org
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Subject: [Anima] ANIMA: pls comment: draft-eckert-anima-services-dns-autoconfig-01 / draft-eckert-anima-grasp-dnssd-03
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Dear ANIMA WG members,

I have refreshed the two drafts to complete a solution for a real standalone ACP:

a) use DNS-SD service compatible service discovery in ANIMA/ACP via GRASP:
   https://datatracker.ietf.org/doc/draft-eckert-anima-grasp-dnssd/
b) Use service discovery for ANIMA/ACP to autoconfigure its own core services
   https://datatracker.ietf.org/doc/draft-eckert-anima-services-dns-autoconfig/

Could I ask you to review and comment these two drafts ?

If the responses are not too averse, I will request a call for adoption.

Thanks
    Toerless

Btw: I am happy to swap mutual review cycles, so if you are waiting for more reviews
of your very own draft for ANIMA, i'll be happy to reciprocate ;-))


From nobody Fri Mar  4 17:03:46 2022
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To: Toerless Eckert <tte@cs.fau.de>, anima@ietf.org
References: <YiJXO7m00lQuVmES@faui48e.informatik.uni-erlangen.de>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima] ANIMA: pls comment: draft-eckert-anima-services-dns-autoconfig-01 / draft-eckert-anima-grasp-dnssd-03
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Hi,

I can reply fairly quickly, since I studied these two drafts before,
and prototyped the draft-eckert-anima-grasp-dnssd mechanism.
I haven't exercised that code recently, but it can be found at:
https://github.com/becarpenter/graspy/blob/master/GetDNSSD2.py
https://github.com/becarpenter/graspy/blob/master/AskDNSSD2.py

So, the mechanism for mapping DNSSD info to a GRASP objective works.

The question that came to me was whether the proposed family of
SRV.<service-name> objectives was too general or not general enough.

Too general, because it claims to be applicable to, well, anything.

Not general enough, because for draft-carpenter-anima-grasp-config,
it didn't make much sense to define that as SRV.GraspConfig. However,
I found the CBOR map approach to defining an extensible objective very
useful. Hence, the code at:
https://github.com/becarpenter/graspy/blob/master/GRASPconfig.py
does *not* use the exact draft-eckert-anima-grasp-dnssd mapping,
but is directly based on it.

All the same, I think this approach to integrating GRASP-based service
management with DNSSD and with legacy NOC services is very interesting
and seems to be something ANIMA should consider carefully.

Could the authors deal with the various TBDs in both documents?

Regards
    Brian Carpenter

On 05-Mar-22 07:15, Toerless Eckert wrote:
> Dear ANIMA WG members,
> 
> I have refreshed the two drafts to complete a solution for a real standalone ACP:
> 
> a) use DNS-SD service compatible service discovery in ANIMA/ACP via GRASP:
>     https://datatracker.ietf.org/doc/draft-eckert-anima-grasp-dnssd/
> b) Use service discovery for ANIMA/ACP to autoconfigure its own core services
>     https://datatracker.ietf.org/doc/draft-eckert-anima-services-dns-autoconfig/
> 
> Could I ask you to review and comment these two drafts ?
> 
> If the responses are not too averse, I will request a call for adoption.
> 
> Thanks
>      Toerless
> 
> Btw: I am happy to swap mutual review cycles, so if you are waiting for more reviews
> of your very own draft for ANIMA, i'll be happy to reciprocate ;-))
> 
> _______________________________________________
> Anima mailing list
> Anima@ietf.org
> https://www.ietf.org/mailman/listinfo/anima
> 


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From: Jim Zubov <ietf-list@commercebyte.com>
To: secdispatch@ietf.org, Hannes Tschofenig <Hannes.Tschofenig@arm.com>, Jim Zubov <ietf-list@commercebyte.com>, "secdispatch@ietf.org" <secdispatch@ietf.org>, Michael Richardson <mcr+ietf@sandelman.ca>, "iotops@ietf.org" <iotops@ietf.org>, "anima@ietf.org" <anima@ietf.org>
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Subject: Re: [Anima] [Secdispatch] [Iotops] I-D: Deploying Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
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------IZU1C3FBSABSWSQA60NDZM9OFRL82B
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Hi Hannes,

Good overview of strategic approaches, let me add another dimension -
- Can the relay access any information communicated between the device and=
 the user,
- If the answer is _no_ - can the user or some independent party verify th=
e validity of such claim=2E

In case of SNIF, the setup consists of
- an IoT device capable of serving HTTPS (user friendly pages or an API), =
running a SNIF connector,
- a web based device manager on the user side that works with the device's=
 HTTPS content (and expects a trusted cert),
- a SNIF relay / CA proxy server in the cloud,
- potentially, an independent observer that watches TLS transparency logs =
and raises an alert if any duplicate certs are found for the CNs issued by =
the CA proxy=2E

This way, the IoT device owns the private key, and there's a proof through=
 the public trust PKI that the device manager is communicating to the authe=
ntic device=2E
In case if the public CA trust is not enough, the device manager can exami=
ne the public key on the cert on every connection (should be possible to do=
 with the Forge project in regular js), and raise an alert if the key is ch=
anged (just like ssh does)=2E

SNIF is the answer for a smart home, a security cam, or any other private =
IoT you don't want anybody to sniff on (pun intended)=2E

If you're deploying a device accessable to a large group, like a public we=
bcam, SNIF might be not a good option, it might be better to have an interm=
idiate proxy that handles all traffic without choking the device=2E But, en=
d-to-end privacy is a lesser concern in such case=2E

Regarding the conversion of any existing devices to SNIF -
- serve the content on the device over HTTPS or local plain HTTP, whether =
it's a web page, a video stream or an API, listening on a local port (say 4=
43)
- run a SNIF connector process to maintain the cert and to relay to incomi=
ng SNIF connections to the local port=2E

On March 3, 2022 6:18:48 AM EST, Hannes Tschofenig <Hannes=2ETschofenig@ar=
m=2Ecom> wrote:
>Hi Jim,
>
>Thanks for your response=2E
>
>> There are some IoT management solutions on the market, both open source=
 and proprietary, but as far as I can tell none of them fully follows the e=
nd to end paradigm=2E
>[Hannes] It depends what you call end-to-end=2E As an IoT service provide=
r you have to make a few decisions about how to manage and deploy IoT devic=
es=2E Broadly speaking, you have three options:
>
>  *   You  seek out to a third party to manage your devices=2E Needless t=
o say that you should pick a company that you feel comfortable with=2E They=
 will manage your devices and they will also offer ways to store the data o=
btained from the devices, to manage and distribute firmware updates, and ev=
en to perform analysis of the data (machine learning)=2E Then, you can typi=
cally connect backend application servers to the device management offering=
=2E Of course, the details vary a lot with what you are actually doing as a=
n IoT service provider with the IoT devices and the data=2E
>  *   You get the software from a provider and you manage the devices on =
your own=2E This is often the case when you want to deploy an on-premise so=
lution=2E Here you have to trust the provider of the device management soft=
ware that the code is correct and does what it is supposed to do=2E In some=
 cases you not only get the binary but also the source code=2E In theory, y=
ou could check what code is actually running (although I doubt that anyone =
really checks)=2E
>  *   Finally, you build your own device management solution (often using=
 available open source software)=2E
>In practice, I have also seen a combination of the variants above=2E For =
example, I have seen a case where the devices were managed by a third party=
 but the video stream of the surveillance camera was sent directly to a ded=
icated server managed by the IoT service provider=2E (There were also vario=
us techniques to prevent modifications to the device to have the video stre=
am re-directed or the credentials changes but I think you get the idea=2E) =
The communication model there was a bit different than yours because the cl=
ient initiated the communication with the video server=2E Hence, there was =
no issue with running a TLS server on the device=2E
>On top of this, it is also common to provide special security protection =
for selected data=2E For example, firmware updates are signed by party diff=
erent from the company offering the device management solution=2E They are,=
 for example, singed by the company developing the code=2E They are still d=
istributed by the device management infrastructure and hence you have to re=
ly on the distribution of them but there is no chance for the device manage=
ment provider to inject malicious code into the device=2E
>From what I am seeing, the first deployment model is very popular=2E The =
approach of =E2=80=9Cdesigning your own solution=E2=80=9D was popular in th=
e early days because companies were given the impression that this IoT stuf=
f is so simple that you can put a solution together in a weekend=2E It turn=
ed out that this is not quite the case (if you have a larger number of devi=
ces)=2E Many IoT service providers also need help designing the entire solu=
tion, also the solution on the IoT device itself=2E
>How does your solution fit into this picture?
>> I believe it's worth having a universal cross-vendor solution that hand=
les SNIF device onboarding, maintains the credentials in a local secure sto=
rage, and consolidates https based management interface hosted by individua=
l devices through SNIF=2E
>[Hannes] There is definitely a lot of excitement when it comes to the dev=
elopment of device onboarding solutions=2E I have to trust you that there i=
s further interest for solutions because I haven=E2=80=99t checked=2E
>
>> The requirements for such solution is a topic for a separate draft, alt=
hough I already outlined the possible secure onboarding process in the secu=
rity section=2E
>I will re-read your security consideration section again=2E
>
>Note that I am certainly not against your solution=2E If your approach ha=
s success, kudos to you=2E
>
>Ciao
>Hannes
>
>On February 24, 2022 5:37:46 AM EST, Hannes Tschofenig <Hannes=2ETschofen=
ig@arm=2Ecom<mailto:Hannes=2ETschofenig@arm=2Ecom>> wrote:
>
>Hi Jim,
>
>Thanks for the quick response=2E The link to your website is helpful=2E I=
 now understood that you would also relay the communication through the pro=
xy, which deals with the IoT device being behind a NAT and/or firewall if t=
he IoT device keeps the connection alive=2E
>
>I wonder whether you have considered to re-use an existing device managem=
ent solutions since those is widely deployed today?
>
>Ciao
>Hannes
>
>-----Original Message-----
>From: Iotops <iotops-bounces@ietf=2Eorg<mailto:iotops-bounces@ietf=2Eorg>=
> On Behalf Of Jim Zubov
>Sent: Wednesday, February 23, 2022 4:17 PM
>To: secdispatch@ietf=2Eorg<mailto:secdispatch@ietf=2Eorg>; Hannes Tschofe=
nig <Hannes=2ETschofenig@arm=2Ecom<mailto:Hannes=2ETschofenig@arm=2Ecom>>; =
Jim Zubov <ietf-list@commercebyte=2Ecom<mailto:ietf-list@commercebyte=2Ecom=
>>; secdispatch@ietf=2Eorg<mailto:secdispatch@ietf=2Eorg>; Michael Richards=
on <mcr+ietf@sandelman=2Eca<mailto:mcr+ietf@sandelman=2Eca>>; iotops@ietf=
=2Eorg<mailto:iotops@ietf=2Eorg>; anima@ietf=2Eorg<mailto:anima@ietf=2Eorg>
>Subject: Re: [Iotops] [Secdispatch] I-D: Deploying Publicly Trusted TLS S=
ervers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
>
>Thank You for your feedback Hannes, I addressed the comments below -
>
>On February 23, 2022 5:36:15 AM EST, Hannes Tschofenig <Hannes=2ETschofen=
ig@arm=2Ecom<mailto:Hannes=2ETschofenig@arm=2Ecom>> wrote:
>
>Hi all,
>
>Thanks for this contribution, Jim=2E
>
>Reading through the document I agree that the SUIB topic discussed in the=
 IOTOPS WG appears relevant=2E I also wonder whether the work in the DANISH=
 group (see https://datatracker=2Eietf=2Eorg/wg/danish/about/) is relevant=
=2E
>
>Agreed about SUIB, not quite sure about DANISH=2E DANISH is about certifi=
cate based authentication and PKI extensions, while SNIF is about end-to-en=
d relayed trusted TLS that relies on the standard PKI=2E
>
>Regarding the use in IoT I have a question for my understanding=2E
>
>In a nutshell, you introduce a proxy that allocates a hostname and reques=
ts a creation of a certificate on behalf of the IoT device=2E
>
>Correct, plus an e2e TLS relay=2E
>
>To get this to work you rely on three assumptions:
>(1) There has to be a communication infrastructure that associates the "a=
nonymous" hostname with a specific device and conveys these identifiers to =
the relevant parties=2E
>
>Each device is configured with an initUrl pointing to a specific CA proxy=
 that allocates a random hostname (a CN to be more accurate), normally a su=
bdomain of a master domain that has a wildcard DNS record pointing to the C=
A proxy=2E
>Example - the initUrl for public experimental use - https://snif=2Esnif=
=2Exyz:4443 The allocated wildcard CN is a subdomain of the master domain s=
nif=2Exyz
>
>
>(2) You assume that a party that wants to contact the IoT device is able =
to reach the device (i=2Ee=2E the IoT device is not behind a firewall or NA=
T)=2E
>
>Both the IoT device and the client connect to the SNIF relay=2E The whole=
 purpose of SNIF is to be able to work from behind NAT / firewall /etc, and=
 it's been confirmed to work in pre-production=2E In fact I had a minor hic=
kup with Fortigate in the process of testing which has been resolved=2E
>There are simplified diagrams on https://snif=2Ehost to illustrate the co=
ncept=2E
>
>
>(3) Someone operating IoT devices has to trust the proxy since it is easy=
 for the proxy to associate a hostname with a public key that was created b=
y the proxy (rather than the end device)=2E This essentially allows the pro=
xy to impersonating the IoT device=2E
>
>Is my understanding correct?
>
>Yes, I mentioned this vulnerability in the security section=2E The answer=
 is
>- watch the public TLS transparency logs, any party can do it=2E If any o=
verlapping CNs are found - the CA proxy is permanently compromised,
>- do not use random CA proxies owned by unknown parties=2E
>
>
>Ciao
>Hannes
>
>Any further questions/suggestions are welcome=2E
>
>-----Original Message-----
>From: Secdispatch <secdispatch-bounces@ietf=2Eorg<mailto:secdispatch-boun=
ces@ietf=2Eorg>> On Behalf Of Jim Zubov
>Sent: Friday, February 11, 2022 12:22 AM
>To: secdispatch@ietf=2Eorg<mailto:secdispatch@ietf=2Eorg>; Michael Richar=
dson <mcr+ietf@sandelman=2Eca<mailto:mcr+ietf@sandelman=2Eca>>;
>Jim Zubov <ietf-list@commercebyte=2Ecom<mailto:ietf-list@commercebyte=2Ec=
om>>; iotops@ietf=2Eorg<mailto:iotops@ietf=2Eorg>; anima@ietf=2Eorg<mailto:=
anima@ietf=2Eorg>
>Subject: Re: [Secdispatch] I-D: Deploying Publicly Trusted TLS Servers
>on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
>
>Thanks for the feedback again, my comment are below=2E
>I submitted a new version of the draft to reflect some changes=2E
>
>On February 10, 2022 1:02:48 PM EST, Michael Richardson <mcr+ietf@sandelm=
an=2Eca<mailto:mcr+ietf@sandelman=2Eca>> wrote:
>
>Jim Zubov <ietf-list@commercebyte=2Ecom<mailto:ietf-list@commercebyte=2Ec=
om>> wrote:
>
> This was also on the IETF112 IOTOPS WG agenda:
> slides:
> https://datatracker=2Eietf=2Eorg/meeting/112/materials/slides-112-iotops=
-suib-browsing-local-web-resources-in-a-secure-usable-manner-iot-device-con=
figuration-as-a-special-case-00
> video:  https://youtu=2Ebe/OIlJrUvwDcI?t=3D1649
>
> and we hope to return at IETF113=2E
>
>
>
>Right, looks like SUIB is working on a similar problem=2E Thanks for
>pointing this out=2E In particular, the "Sol #6 Device name DNS" slide
>looks quite similar to SNIF CA Proxy (Section 3)=2E However, SUIB pursues
>bigger infrastructural goals such as changing the localhost TLS
>connection policies (I totally agree and really appreciate the effort),
>while SNIF is a functioning solution within the existing
>infrastructure, tested and proven to work in pre-production=2E
>
>The slides may be too vague=2E  Changing the TLS policies is a possible
>solution, but probably an impractical one=2E  Nevertheless, many people
>(not steeped in the arts, and often failling into the PHB category)
>think that it is an obvious solution, so we list it in order to explain w=
hy it won't work=2E
>
>Yes, still sad that localhost slipped through the cracks when the origina=
l security standards were written=2E
>
>
>
> The SUIB problem addresses the challenge of connecting *locally* to a
> device,
> and doing it securely=2E  For this to be possible with RFC6125-DNS-ID
> standard
> browser, we need a name for the device, and we need a way to translate
> that
> name into a locally reachable IP address=2E
>
> The SNIF proposal does not quite solve the above problem=2E
>
>
>
>In fact, I originally designed SNIF to solve this specific problem -
>local-to-local trusted TLS connections=2E
>
>Ah, very nice to know=2E
>
>* Issue a wildcard cert through SNIF CA Proxy
>(e=2Eg=2E CN=3D*=2Edomain=2Esnif=2Exyz), set a DNS record for
>localhost=2Edomain=2Esnif=2Exyz to point to localhost's IPv4/v6, and use
>https://localhost=2Edomain=2Esnif=2Exyz (or other app protocol - imaps
>etc)=2E However, looks like some clients treat the localhost IP as
>inherently unsecure, and issue a warning ever is the cert is perfectly
>valid=2E The option is still possible, but the applicability might be
>limited=2E
>
>The process we described at
>
>https://specs=2Emanysecured=2Eorg/suib/Solutions/dnsname-embedded-solutio=
n
>
>also uses a wildcard cert, but has a magic authoritative DNS server
>that translates the left-most label into an A or AAAA record=2E  It's
>rather a cute hack, but at least:
>  a) it's cachable
>  b) it could even be calculated locally, if one ignores DNSSEC=2E
>
>Yes, using a local network IP instead of a localhost IP is actually a sma=
rt idea=2E
>However, inlining the local IP in the hostname, as SUIB does, means you'l=
l have to change the hostname in your client every time your network is cha=
nged=2E
>I have an thought for SNIF improvement - SNIF connector sends a SNIF DNS =
command to set a dynamic DNS A/AAAA for a certain hostname within the CN wi=
ldcard, and the CA proxy updates the DNS accordingly=2E This way the hostna=
me can be permanent, but with dynamic DNS=2E
>Another problem - most platforms won't let you bind to port < 1024 unless=
 you're a root=2E Might be ok for a device manufacturer, but is a potential=
 show stopper for any user space app=2E Relayed SNIF works around this prob=
lem since the listening ports are on the relay=2E
>
>
>
>
>* Another option is to override the IP routing rules=2E It is totally
>possible on iOS and Mac through a userspace VPN (only one VPN per
>device though - beware of possible conflicts)=2E In fact I have a
>functioning solution for it, in beta now -
>
>That doesn't really scale to many different domains=2E
>
>Totally agreed, I just mentioned that this option works for *some* cases,=
 tun/tap a is possible option too if you're a root=2E
>
>
>
>Still, if SNIF is replacing a manufacturer proprietary call-home protocol=
,
>there could be advantages from having well reviewed code bases, and
>potentially an ecosystem of SNIF Providers that manufacturers could
>outsource
>
>
>
>to=2E  Azure/Amazon/=2E=2E=2E could easily run such services=2E
>
>
>
>I see two options - a SNIF server implemented by each vendor for their
>own devices/services, or a bigger SNIF SaaS implemented by a trusted
>provider, used by vendors=2E
>
>Yes, but what's the financial motive for this provider?
>
>(1) For a vendor to run their own SNIF server: market as a true auditable=
 end-to-end for IoT devices they offer=2E
>(2) For a vendor using SNIF SaaS: market as (1) backed by
>{TrustedBigName}
>(3) For a {TrustedBigName} to run SNIF SaaS: collect fees from (2) for us=
ing their service and big name=2E
>
>As a matter of fact, SNIF relay is light on server resources=2E I've been=
 running it on a minimum DigitalOcean virtual server for months with more t=
han a dozen connectors,   the server load is a fraction of a percent=2E Of =
course if somebody connects IoT cameras they can generate some traffic, but=
 IoT vendors already handle it through their proprietary relays=2E
>
>
>
>SNIF seems very much IPv4 NAT44 focused, and it could benefit from some
>understanding of IPv6 and IPv6-over-IPv4 technologies,
>
> particularly
>
>Teredo=2E
>
>
>
>SNIF is not exactly focused on v4, it works fine with v6 as well=2E It's
>designed to work around NAT, that's true=2E However, IPv6 networks may
>pose issues too - firewalls etc, which will prevent to directly accept
>incoming TCP on IPv6 address=2E
>
>Teredo could be used instead and allows the relay to be stateless and
>distributed, and devolves to ordinary IPv6 when it is present=2E
>
>Yes, but Teredo is IPv6 specific, the world is not strictly IPv6 yet=2E A=
nd it's a system level solution, while SNIF works fine in a user space=2E
>
>
>
>It clearly has to speak HTTPS only=2E
>
>
>
>I specified HTTP because PKCS#10 and X=2E509 are inherently secure to be
>sent over a plain connection=2E
>
>Yes, but there are privacy concerns which will become a pain, so
>better to just say HTTPS here=2E
>
>I respectfully disagree, still think HTTP is an easier answer for SNIF=2E=
 The problem with HTTPS is - SNIF relay (usually) routes https port to SNIF=
 connectors, and does not serve it within the server=2E Having a dedicated =
hostname or an alternate port means than SNIF connectors need additional co=
nfiguration options, or additional discovery protocols=2E On the other hand=
, HTTP allows to derive all API URLs deterministically from the CN=2E
>I addressed the possible security concerns in more details and amended th=
e Security section in the draft=2E
>
>
>
>
>The best option is the manufacturer I believe=2E The manufacturer can
>have either their own SNIF server, or work with a trusted SaaS=2E This
>way it's zero setup for the end user, and doesn't need any
>infrastructure additions=2E
>
>Agreed, the manufacturer has to provision a credential=2E
>
>Yes I proposed some outlines in the security section, more detailed specs=
 are probably better to describe in a separate draft=2E
>
>
>
>Sure, elliptic curves are better, but some old school clients may have
>problems with them=2E It may make sense to not mention the recommended
>algorithm in the draft, and just to follow the CA's recommendations=2E
>
>ECDSA acceleration is pretty much ubiquitous, while RSA is not=2E
>
>Honestly I don't think acceleration is such a big deal, most of TLS job i=
s symmetric ciphers anyway=2E But I agree - it's better to follow the CA su=
ggestions and industry practices=2E
>
>
>
>I believe there's no security issue, as long as the CN entropy is suffici=
ent=2E
>
>
>
>I specified the X-SNIF-CN: as mandatory, and text/plain body as an
>optional duplicate of it=2E To make it cleaner, I can remove the body
>from the specs and say the response body is to be ignored=2E
>
>If both are present, and they don't match, then there is confusion=2E
>So just go with one=2E  I think that it should actually be a JSON or CBOR=
 payload return=2E
>
>Agreed, I removed the response body from the draft, going with the header=
=2E
>
>
>
>
>They *aren't* what IANA would call "IP protocols", which would be things
>like
>TCP, UDP, SCTP, ESP, =2E=2E=2E
>
>
>
>Has IANA *already* registered port 7123 then?
>
>
>
>It's not an IP protocol=2E It's a service that listens on TCP 7123, I
>registered with IANA based on a previous version of the document,
>before I turned it into an I-D=2E
>
>I think you should drop the "snif-*" sentence as it makes no sense=2E
>You have already allocated TCP port 7123 to the SNIF *service*, so
>that's great=2E
>
>It's actually called "Service Names" in IANA terminology, sorry for the c=
onfusion=2E I updated in the draft=2E
>
>
>
>--
>]               Never tell me the odds!                 | ipv6 mesh netwo=
rks [
>]   Michael Richardson, Sandelman Software Works        |    IoT architec=
t   [
>]     mcr@sandelman=2Eca<mailto:mcr@sandelman=2Eca>  http://www=2Esandelm=
an=2Eca/        |   ruby on rails    [
>
>________________________________
>
>Secdispatch mailing list
>Secdispatch@ietf=2Eorg<mailto:Secdispatch@ietf=2Eorg>
>https://www=2Eietf=2Eorg/mailman/listinfo/secdispatch
>IMPORTANT NOTICE: The contents of this email and any attachments are conf=
idential and may also be privileged=2E If you are not the intended recipien=
t, please notify the sender immediately and do not disclose the contents to=
 any other person, use it for any purpose, or store or copy the information=
 in any medium=2E Thank you=2E
>
>________________________________
>
>Secdispatch mailing list
>Secdispatch@ietf=2Eorg<mailto:Secdispatch@ietf=2Eorg>
>https://www=2Eietf=2Eorg/mailman/listinfo/secdispatch
>
>--
>Iotops mailing list
>Iotops@ietf=2Eorg<mailto:Iotops@ietf=2Eorg>
>https://www=2Eietf=2Eorg/mailman/listinfo/iotops
>IMPORTANT NOTICE: The contents of this email and any attachments are conf=
idential and may also be privileged=2E If you are not the intended recipien=
t, please notify the sender immediately and do not disclose the contents to=
 any other person, use it for any purpose, or store or copy the information=
 in any medium=2E Thank you=2E
>
>IMPORTANT NOTICE: The contents of this email and any attachments are conf=
idential and may also be privileged=2E If you are not the intended recipien=
t, please notify the sender immediately and do not disclose the contents to=
 any other person, use it for any purpose, or store or copy the information=
 in any medium=2E Thank you=2E

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<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple" style=3D"word-wrap:bre=
ak-word">Hi Hannes,<br><br>Good overview of strategic approaches, let me ad=
d another dimension -<br>- Can the relay access any information communicate=
d between the device and the user,<br>- If the answer is _no_ - can the use=
r or some independent party verify the validity of such claim=2E<br><br>In =
case of SNIF, the setup consists of<br>- an IoT device capable of serving H=
TTPS (user friendly pages or an API), running a SNIF connector,<br>- a web =
based device manager on the user side that works with the device's HTTPS co=
ntent (and expects a trusted cert),<br>- a SNIF relay / CA proxy server in =
the cloud,<br>- potentially, an independent observer that watches TLS trans=
parency logs and raises an alert if any duplicate certs are found for the C=
Ns issued by the CA proxy=2E<br><br>This way, the IoT device owns the priva=
te key, and there's a proof through the public trust PKI that the device ma=
nager is communicating to the authentic device=2E<br>In case if the public =
CA trust is not enough, the device manager can examine the public key on th=
e cert on every connection (should be possible to do with the Forge project=
 in regular js), and raise an alert if the key is changed (just like ssh do=
es)=2E<br><br>SNIF is the answer for a smart home, a security cam, or any o=
ther private IoT you don't want anybody to sniff on (pun intended)=2E<br><b=
r>If you're deploying a device accessable to a large group, like a public w=
ebcam, SNIF might be not a good option, it might be better to have an inter=
midiate proxy that handles all traffic without choking the device=2E But, e=
nd-to-end privacy is a lesser concern in such case=2E<br><br>Regarding the =
conversion of any existing devices to SNIF -<br>- serve the content on the =
device over HTTPS or local plain HTTP, whether it's a web page, a video str=
eam or an API, listening on a local port (say 443)<br>- run a SNIF connecto=
r process to maintain the cert and to relay to incoming SNIF connections to=
 the local port=2E<br><br><div class=3D"gmail_quote">On March 3, 2022 6:18:=
48 AM EST, Hannes Tschofenig &lt;Hannes=2ETschofenig@arm=2Ecom&gt; wrote:<b=
lockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0=2E8ex; borde=
r-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">

<div class=3D"WordSection1">
<p class=3D"MsoNormal">Hi Jim, <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks for your response=2E <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">&gt; There are som=
e IoT management solutions on the market, both open source and proprietary,=
 but as far as I can tell none of them fully follows the end to end paradig=
m=2E<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">[Hannes] It depend=
s what you call end-to-end=2E As an IoT service provider you have to make a=
 few decisions about how to manage and deploy IoT devices=2E Broadly speaki=
ng, you have three options:
<o:p></o:p></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"MsoListParagraph" style=3D"margin-bottom:12=2E0pt;margin-left=
:0in;mso-list:l0 level1 lfo1">
You &nbsp;seek out to a third party to manage your devices=2E Needless to =
say that you should pick a company that you feel comfortable with=2E They w=
ill manage your devices and they will also offer ways to store the data obt=
ained from the devices, to manage and distribute
 firmware updates, and even to perform analysis of the data (machine learn=
ing)=2E Then, you can typically connect backend application servers to the =
device management offering=2E Of course, the details vary a lot with what y=
ou are actually doing as an IoT service
 provider with the IoT devices and the data=2E<o:p></o:p></li><li class=3D=
"MsoListParagraph" style=3D"margin-bottom:12=2E0pt;margin-left:0in;mso-list=
:l0 level1 lfo1">
You get the software from a provider and you manage the devices on your ow=
n=2E This is often the case when you want to deploy an on-premise solution=
=2E Here you have to trust the provider of the device management software t=
hat the code is correct and does what
 it is supposed to do=2E In some cases you not only get the binary but als=
o the source code=2E In theory, you could check what code is actually runni=
ng (although I doubt that anyone really checks)=2E
<o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-bottom:12=
=2E0pt;margin-left:0in;mso-list:l0 level1 lfo1">
Finally, you build your own device management solution (often using availa=
ble open source software)=2E
<o:p></o:p></li></ul>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">In practice, I hav=
e also seen a combination of the variants above=2E For example, I have seen=
 a case where the devices were managed by a third party but the video strea=
m of the surveillance camera was sent directly
 to a dedicated server managed by the IoT service provider=2E (There were =
also various techniques to prevent modifications to the device to have the =
video stream re-directed or the credentials changes but I think you get the=
 idea=2E) The communication model there
 was a bit different than yours because the client initiated the communica=
tion with the video server=2E Hence, there was no issue with running a TLS =
server on the device=2E<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">On top of this, it=
 is also common to provide special security protection for selected data=2E=
 For example, firmware updates are signed by party different from the compa=
ny offering the device management solution=2E
 They are, for example, singed by the company developing the code=2E They =
are still distributed by the device management infrastructure and hence you=
 have to rely on the distribution of them but there is no chance for the de=
vice management provider to inject
 malicious code into the device=2E <o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">From what I am see=
ing, the first deployment model is very popular=2E The approach of =E2=80=
=9Cdesigning your own solution=E2=80=9D was popular in the early days becau=
se companies were given the impression that this IoT stuff
 is so simple that you can put a solution together in a weekend=2E It turn=
ed out that this is not quite the case (if you have a larger number of devi=
ces)=2E Many IoT service providers also need help designing the entire solu=
tion, also the solution on the IoT device
 itself=2E<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">How does your solu=
tion fit into this picture?<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">&gt; I believe it'=
s worth having a universal cross-vendor solution that handles SNIF device o=
nboarding, maintains the credentials in a local secure storage, and consoli=
dates https based management interface hosted
 by individual devices through SNIF=2E<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">[Hannes] There is =
definitely a lot of excitement when it comes to the development of device o=
nboarding solutions=2E I have to trust you that there is further interest f=
or solutions because I haven=E2=80=99t checked=2E<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt"><br>
&gt; The requirements for such solution is a topic for a separate draft, a=
lthough I already outlined the possible secure onboarding process in the se=
curity section=2E<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">I will re-read you=
r security consideration section again=2E
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt"><o:p>&nbsp;</o:p><=
/p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">Note that I am cer=
tainly not against your solution=2E If your approach has success, kudos to =
you=2E
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt"><o:p>&nbsp;</o:p><=
/p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">Ciao<o:p></o:p></p=
>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt">Hannes<o:p></o:p><=
/p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12=2E0pt"><o:p>&nbsp;</o:p><=
/p>
<div>
<p class=3D"MsoNormal">On February 24, 2022 5:37:46 AM EST, Hannes Tschofe=
nig &lt;<a href=3D"mailto:Hannes=2ETschofenig@arm=2Ecom">Hannes=2ETschofeni=
g@arm=2Ecom</a>&gt; wrote:<o:p></o:p></p>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in">
<pre>Hi Jim,<br><br>Thanks for the quick response=2E The link to your webs=
ite is helpful=2E I now understood that you would also relay the communicat=
ion through the proxy, which deals with the IoT device being behind a NAT a=
nd/or firewall if the IoT device keeps the connection alive=2E<br><br>I won=
der whether you have considered to re-use an existing device management sol=
utions since those is widely deployed today?<br><br>Ciao<br>Hannes<br><br>-=
----Original Message-----<br>From: Iotops &lt;<a href=3D"mailto:iotops-boun=
ces@ietf=2Eorg">iotops-bounces@ietf=2Eorg</a>&gt; On Behalf Of Jim Zubov<br=
>Sent: Wednesday, February 23, 2022 4:17 PM<br>To: <a href=3D"mailto:secdis=
patch@ietf=2Eorg">secdispatch@ietf=2Eorg</a>; Hannes Tschofenig &lt;<a href=
=3D"mailto:Hannes=2ETschofenig@arm=2Ecom">Hannes=2ETschofenig@arm=2Ecom</a>=
&gt;; Jim Zubov &lt;<a href=3D"mailto:ietf-list@commercebyte=2Ecom">ietf-li=
st@commercebyte=2Ecom</a>&gt;; <a href=3D"mailto:secdispatch@ietf=2Eorg">se=
cdispatch@ietf=2Eorg</a>; Michael Richardson &lt;<a href=3D"mailto:mcr+ietf=
@sandelman=2Eca">mcr+ietf@sandelman=2Eca</a>&gt;; <a href=3D"mailto:iotops@=
ietf=2Eorg">iotops@ietf=2Eorg</a>; <a href=3D"mailto:anima@ietf=2Eorg">anim=
a@ietf=2Eorg</a><br>Subject: Re: [Iotops] [Secdispatch] I-D: Deploying Publ=
icly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forw=
arding (SNIF)<br><br>Thank You for your feedback Hannes, I addressed the co=
mments below -<br><br>On February 23, 2022 5:36:15 AM EST, Hannes Tschofeni=
g &lt;<a href=3D"mailto:Hannes=2ETschofenig@arm=2Ecom">Hannes=2ETschofenig@=
arm=2Ecom</a>&gt; wrote:<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #729FCF 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>Hi all,<br><br>Thanks for this contribution, Jim=2E<br><br>Reading th=
rough the document I agree that the SUIB topic discussed in the IOTOPS WG a=
ppears relevant=2E I also wonder whether the work in the DANISH group (see =
<a href=3D"https://datatracker=2Eietf=2Eorg/wg/danish/about/)">https://data=
tracker=2Eietf=2Eorg/wg/danish/about/)</a> is relevant=2E<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Agreed about SUIB, not quite sur=
e about DANISH=2E DANISH is about certificate based authentication and PKI =
extensions, while SNIF is about end-to-end relayed trusted TLS that relies =
on the standard PKI=2E<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #729FCF 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><br>Regarding the use in IoT I have a question for my understanding=
=2E<br><br>In a nutshell, you introduce a proxy that allocates a hostname a=
nd requests a creation of a certificate on behalf of the IoT device=2E<o:p>=
</o:p></pre>
</blockquote>
<pre><br>Correct, plus an e2e TLS relay=2E<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #729FCF 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><br>To get this to work you rely on three assumptions:<br>(1) There h=
as to be a communication infrastructure that associates the "anonymous" hos=
tname with a specific device and conveys these identifiers to the relevant =
parties=2E<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Each device is configured with a=
n initUrl pointing to a specific CA proxy that allocates a random hostname =
(a CN to be more accurate), normally a subdomain of a master domain that ha=
s a wildcard DNS record pointing to the CA proxy=2E<br>Example - the initUr=
l for public experimental use - <a href=3D"https://snif=2Esnif=2Exyz:4443">=
https://snif=2Esnif=2Exyz:4443</a> The allocated wildcard CN is a subdomain=
 of the master domain snif=2Exyz<br><br><o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #729FCF 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>(2) You assume that a party that wants to contact the IoT device is a=
ble to reach the device (i=2Ee=2E the IoT device is not behind a firewall o=
r NAT)=2E<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Both the IoT device and the clie=
nt connect to the SNIF relay=2E The whole purpose of SNIF is to be able to =
work from behind NAT / firewall /etc, and it's been confirmed to work in pr=
e-production=2E In fact I had a minor hickup with Fortigate in the process =
of testing which has been resolved=2E<br>There are simplified diagrams on <=
a href=3D"https://snif=2Ehost">https://snif=2Ehost</a> to illustrate the co=
ncept=2E<br><br><o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #729FCF 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>(3) Someone operating IoT devices has to trust the proxy since it is =
easy for the proxy to associate a hostname with a public key that was creat=
ed by the proxy (rather than the end device)=2E This essentially allows the=
 proxy to impersonating the IoT device=2E<br><br>Is my understanding correc=
t?<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Yes, I mentioned this vulnerabil=
ity in the security section=2E The answer is<br>- watch the public TLS tran=
sparency logs, any party can do it=2E If any overlapping CNs are found - th=
e CA proxy is permanently compromised,<br>- do not use random CA proxies ow=
ned by unknown parties=2E<br><br><o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #729FCF 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><br>Ciao<br>Hannes<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Any further questions/suggestion=
s are welcome=2E<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #729FCF 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><br>-----Original Message-----<br>From: Secdispatch &lt;<a href=3D"ma=
ilto:secdispatch-bounces@ietf=2Eorg">secdispatch-bounces@ietf=2Eorg</a>&gt;=
 On Behalf Of Jim Zubov<br>Sent: Friday, February 11, 2022 12:22 AM<br>To: =
<a href=3D"mailto:secdispatch@ietf=2Eorg">secdispatch@ietf=2Eorg</a>; Micha=
el Richardson &lt;<a href=3D"mailto:mcr+ietf@sandelman=2Eca">mcr+ietf@sande=
lman=2Eca</a>&gt;;<br>Jim Zubov &lt;<a href=3D"mailto:ietf-list@commercebyt=
e=2Ecom">ietf-list@commercebyte=2Ecom</a>&gt;; <a href=3D"mailto:iotops@iet=
f=2Eorg">iotops@ietf=2Eorg</a>; <a href=3D"mailto:anima@ietf=2Eorg">anima@i=
etf=2Eorg</a><br>Subject: Re: [Secdispatch] I-D: Deploying Publicly Trusted=
 TLS Servers<br>on IoT Devices Using SNI-based End-to-End TLS Forwarding (S=
NIF)<br><br>Thanks for the feedback again, my comment are below=2E<br>I sub=
mitted a new version of the draft to reflect some changes=2E<br><br>On Febr=
uary 10, 2022 1:02:48 PM EST, Michael Richardson &lt;<a href=3D"mailto:mcr+=
ietf@sandelman=2Eca">mcr+ietf@sandelman=2Eca</a>&gt; wrote:<o:p></o:p></pre=
>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><br>Jim Zubov &lt;<a href=3D"mailto:ietf-list@commercebyte=2Ecom">iet=
f-list@commercebyte=2Ecom</a>&gt; wrote:<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<blockquote style=3D"border:none;border-left:solid #FCAF3E 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre> This was also on the IETF112 IOTOPS WG agenda:<br> slides:<br> <a hr=
ef=3D"https://datatracker=2Eietf=2Eorg/meeting/112/materials/slides-112-iot=
ops-suib-browsing-local-web-resources-in-a-secure-usable-manner-iot-device-=
configuration-as-a-special-case-00">https://datatracker=2Eietf=2Eorg/meetin=
g/112/materials/slides-112-iotops-suib-browsing-local-web-resources-in-a-se=
cure-usable-manner-iot-device-configuration-as-a-special-case-00</a><br> vi=
deo:&nbsp; <a href=3D"https://youtu=2Ebe/OIlJrUvwDcI?t=3D1649">https://yout=
u=2Ebe/OIlJrUvwDcI?t=3D1649</a><br><br> and we hope to return at IETF113=2E=
<o:p></o:p></pre>
</blockquote>
</blockquote>
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>Right, looks like SUIB is working on a similar problem=2E Thanks for<=
br>pointing this out=2E In particular, the "Sol #6 Device name DNS" slide<b=
r>looks quite similar to SNIF CA Proxy (Section 3)=2E However, SUIB pursues=
<br>bigger infrastructural goals such as changing the localhost TLS<br>conn=
ection policies (I totally agree and really appreciate the effort),<br>whil=
e SNIF is a functioning solution within the existing<br>infrastructure, tes=
ted and proven to work in pre-production=2E<o:p></o:p></pre>
</blockquote>
<pre><br>The slides may be too vague=2E&nbsp; Changing the TLS policies is=
 a possible<br>solution, but probably an impractical one=2E&nbsp; Neverthel=
ess, many people<br>(not steeped in the arts, and often failling into the P=
HB category)<br>think that it is an obvious solution, so we list it in orde=
r to explain why it won't work=2E<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Yes, still sad that localhost sl=
ipped through the cracks when the original security standards were written=
=2E<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<blockquote style=3D"border:none;border-left:solid #FCAF3E 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre> The SUIB problem addresses the challenge of connecting *locally* to =
a<br> device,<br> and doing it securely=2E&nbsp; For this to be possible wi=
th RFC6125-DNS-ID<br> standard<br> browser, we need a name for the device, =
and we need a way to translate<br> that<br> name into a locally reachable I=
P address=2E<br><br> The SNIF proposal does not quite solve the above probl=
em=2E<o:p></o:p></pre>
</blockquote>
</blockquote>
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>In fact, I originally designed SNIF to solve this specific problem -<=
br>local-to-local trusted TLS connections=2E<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Ah, very nice to know=2E<o:p></o=
:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>* Issue a wildcard cert through SNIF CA Proxy<br>(e=2Eg=2E CN=3D*=2Ed=
omain=2Esnif=2Exyz), set a DNS record for<br>localhost=2Edomain=2Esnif=2Exy=
z to point to localhost's IPv4/v6, and use<br><a href=3D"https://localhost=
=2Edomain=2Esnif=2Exyz">https://localhost=2Edomain=2Esnif=2Exyz</a> (or oth=
er app protocol - imaps<br>etc)=2E However, looks like some clients treat t=
he localhost IP as<br>inherently unsecure, and issue a warning ever is the =
cert is perfectly<br>valid=2E The option is still possible, but the applica=
bility might be<br>limited=2E<o:p></o:p></pre>
</blockquote>
<pre><br>The process we described at<br><br><a href=3D"https://specs=2Eman=
ysecured=2Eorg/suib/Solutions/dnsname-embedded-solution">https://specs=2Ema=
nysecured=2Eorg/suib/Solutions/dnsname-embedded-solution</a><br><br>also us=
es a wildcard cert, but has a magic authoritative DNS server<br>that transl=
ates the left-most label into an A or AAAA record=2E&nbsp; It's<br>rather a=
 cute hack, but at least:<br>&nbsp; a) it's cachable<br>&nbsp; b) it could =
even be calculated locally, if one ignores DNSSEC=2E<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Yes, using a local network IP in=
stead of a localhost IP is actually a smart idea=2E<br>However, inlining th=
e local IP in the hostname, as SUIB does, means you'll have to change the h=
ostname in your client every time your network is changed=2E<br>I have an t=
hought for SNIF improvement - SNIF connector sends a SNIF DNS command to se=
t a dynamic DNS A/AAAA for a certain hostname within the CN wildcard, and t=
he CA proxy updates the DNS accordingly=2E This way the hostname can be per=
manent, but with dynamic DNS=2E<br>Another problem - most platforms won't l=
et you bind to port &lt; 1024 unless you're a root=2E Might be ok for a dev=
ice manufacturer, but is a potential show stopper for any user space app=2E=
 Relayed SNIF works around this problem since the listening ports are on th=
e relay=2E<br><br><o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>* Another option is to override the IP routing rules=2E It is totally=
<br>possible on iOS and Mac through a userspace VPN (only one VPN per<br>de=
vice though - beware of possible conflicts)=2E In fact I have a<br>function=
ing solution for it, in beta now -<o:p></o:p></pre>
</blockquote>
<pre><br>That doesn't really scale to many different domains=2E<o:p></o:p>=
</pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Totally agreed, I just mentioned=
 that this option works for *some* cases, tun/tap a is possible option too =
if you're a root=2E<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<blockquote style=3D"border:none;border-left:solid #FCAF3E 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>Still, if SNIF is replacing a manufacturer proprietary call-home prot=
ocol,<br>there could be advantages from having well reviewed code bases, an=
d<br>potentially an ecosystem of SNIF Providers that manufacturers could<br=
>outsource<o:p></o:p></pre>
</blockquote>
</blockquote>
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<blockquote style=3D"border:none;border-left:solid #FCAF3E 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>to=2E&nbsp; Azure/Amazon/=2E=2E=2E could easily run such services=2E<=
o:p></o:p></pre>
</blockquote>
</blockquote>
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>I see two options - a SNIF server implemented by each vendor for thei=
r<br>own devices/services, or a bigger SNIF SaaS implemented by a trusted<b=
r>provider, used by vendors=2E<o:p></o:p></pre>
</blockquote>
<pre><br>Yes, but what's the financial motive for this provider?<o:p></o:p=
></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>(1) For a vendor to run their ow=
n SNIF server: market as a true auditable end-to-end for IoT devices they o=
ffer=2E<br>(2) For a vendor using SNIF SaaS: market as (1) backed by<br>{Tr=
ustedBigName}<br>(3) For a {TrustedBigName} to run SNIF SaaS: collect fees =
from (2) for using their service and big name=2E<br><br>As a matter of fact=
, SNIF relay is light on server resources=2E I've been running it on a mini=
mum DigitalOcean virtual server for months with more than a dozen connector=
s,&nbsp;&nbsp; the server load is a fraction of a percent=2E Of course if s=
omebody connects IoT cameras they can generate some traffic, but IoT vendor=
s already handle it through their proprietary relays=2E<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<blockquote style=3D"border:none;border-left:solid #FCAF3E 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>SNIF seems very much IPv4 NAT44 focused, and it could benefit from so=
me<br>understanding of IPv6 and IPv6-over-IPv4 technologies,<o:p></o:p></pr=
e>
</blockquote>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"> particularly<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<blockquote style=3D"border:none;border-left:solid #FCAF3E 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>Teredo=2E<o:p></o:p></pre>
</blockquote>
</blockquote>
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>SNIF is not exactly focused on v4, it works fine with v6 as well=2E I=
t's<br>designed to work around NAT, that's true=2E However, IPv6 networks m=
ay<br>pose issues too - firewalls etc, which will prevent to directly accep=
t<br>incoming TCP on IPv6 address=2E<o:p></o:p></pre>
</blockquote>
<pre><br>Teredo could be used instead and allows the relay to be stateless=
 and<br>distributed, and devolves to ordinary IPv6 when it is present=2E<o:=
p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Yes, but Teredo is IPv6 specific=
, the world is not strictly IPv6 yet=2E And it's a system level solution, w=
hile SNIF works fine in a user space=2E<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<blockquote style=3D"border:none;border-left:solid #FCAF3E 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>It clearly has to speak HTTPS only=2E<o:p></o:p></pre>
</blockquote>
</blockquote>
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>I specified HTTP because PKCS#10 and X=2E509 are inherently secure to=
 be<br>sent over a plain connection=2E<o:p></o:p></pre>
</blockquote>
<pre><br>Yes, but there are privacy concerns which will become a pain, so<=
br>better to just say HTTPS here=2E<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>I respectfully disagree, still t=
hink HTTP is an easier answer for SNIF=2E The problem with HTTPS is - SNIF =
relay (usually) routes https port to SNIF connectors, and does not serve it=
 within the server=2E Having a dedicated hostname or an alternate port mean=
s than SNIF connectors need additional configuration options, or additional=
 discovery protocols=2E On the other hand, HTTP allows to derive all API UR=
Ls deterministically from the CN=2E<br>I addressed the possible security co=
ncerns in more details and amended the Security section in the draft=2E<br>=
<br><o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>The best option is the manufacturer I believe=2E The manufacturer can=
<br>have either their own SNIF server, or work with a trusted SaaS=2E This<=
br>way it's zero setup for the end user, and doesn't need any<br>infrastruc=
ture additions=2E<o:p></o:p></pre>
</blockquote>
<pre><br>Agreed, the manufacturer has to provision a credential=2E<o:p></o=
:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Yes I proposed some outlines in =
the security section, more detailed specs are probably better to describe i=
n a separate draft=2E<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>Sure, elliptic curves are better, but some old school clients may hav=
e<br>problems with them=2E It may make sense to not mention the recommended=
<br>algorithm in the draft, and just to follow the CA's recommendations=2E<=
o:p></o:p></pre>
</blockquote>
<pre><br>ECDSA acceleration is pretty much ubiquitous, while RSA is not=2E=
<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Honestly I don't think accelerat=
ion is such a big deal, most of TLS job is symmetric ciphers anyway=2E But =
I agree - it's better to follow the CA suggestions and industry practices=
=2E<o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>I believe there's no security issue, as long as the CN entropy is suf=
ficient=2E<o:p></o:p></pre>
</blockquote>
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>I specified the X-SNIF-CN: as mandatory, and text/plain body as an<br=
>optional duplicate of it=2E To make it cleaner, I can remove the body<br>f=
rom the specs and say the response body is to be ignored=2E<o:p></o:p></pre=
>
</blockquote>
<pre><br>If both are present, and they don't match, then there is confusio=
n=2E<br>So just go with one=2E&nbsp; I think that it should actually be a J=
SON or CBOR payload return=2E<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>Agreed, I removed the response b=
ody from the draft, going with the header=2E<br><br><o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<blockquote style=3D"border:none;border-left:solid #FCAF3E 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>They *aren't* what IANA would call "IP protocols", which would be thi=
ngs<br>like<br>TCP, UDP, SCTP, ESP, =2E=2E=2E<o:p></o:p></pre>
</blockquote>
</blockquote>
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<blockquote style=3D"border:none;border-left:solid #FCAF3E 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>Has IANA *already* registered port 7123 then?<o:p></o:p></pre>
</blockquote>
</blockquote>
<pre><o:p>&nbsp;</o:p></pre>
<blockquote style=3D"border:none;border-left:solid #8AE234 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre>It's not an IP protocol=2E It's a service that listens on TCP 7123, I=
<br>registered with IANA based on a previous version of the document,<br>be=
fore I turned it into an I-D=2E<o:p></o:p></pre>
</blockquote>
<pre><br>I think you should drop the "snif-*" sentence as it makes no sens=
e=2E<br>You have already allocated TCP port 7123 to the SNIF *service*, so<=
br>that's great=2E<o:p></o:p></pre>
</blockquote>
<pre style=3D"margin-bottom:12=2E0pt"><br>It's actually called "Service Na=
mes" in IANA terminology, sorry for the confusion=2E I updated in the draft=
=2E<br><br><br><o:p></o:p></pre>
<blockquote style=3D"border:none;border-left:solid #AD7FA8 1=2E0pt;padding=
:0in 0in 0in 6=2E0pt;margin-left:4=2E8pt;margin-right:0in;margin-bottom:6=
=2E0pt">
<pre style=3D"margin-bottom:12=2E0pt"><br>--<br>]&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Never tell me t=
he odds!&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | ipv6 mesh networks [<br>]&nbsp;&nbsp; Micha=
el Richardson, Sandelman Software Works&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; |&nbsp;&nbsp;&nbsp; IoT architect&nbsp;&nbsp; [<br>]&nbsp;&nbsp;&nbs=
p;&nbsp; <a href=3D"mailto:mcr@sandelman=2Eca">mcr@sandelman=2Eca</a>&nbsp;=
 <a href=3D"http://www=2Esandelman=2Eca/">http://www=2Esandelman=2Eca/</a>&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp; ruby on rails&nbsp;=
&nbsp;&nbsp; [<o:p></o:p></pre>
</blockquote>
<pre style=3D"text-align:center"><hr size=3D"2" width=3D"100%" align=3D"ce=
nter"></pre>
<pre>Secdispatch mailing list<br><a href=3D"mailto:Secdispatch@ietf=2Eorg"=
>Secdispatch@ietf=2Eorg</a><br><a href=3D"https://www=2Eietf=2Eorg/mailman/=
listinfo/secdispatch">https://www=2Eietf=2Eorg/mailman/listinfo/secdispatch=
</a><br>IMPORTANT NOTICE: The contents of this email and any attachments ar=
e confidential and may also be privileged=2E If you are not the intended re=
cipient, please notify the sender immediately and do not disclose the conte=
nts to any other person, use it for any purpose, or store or copy the infor=
mation in any medium=2E Thank you=2E<o:p></o:p></pre>
<pre style=3D"text-align:center"><hr size=3D"2" width=3D"100%" align=3D"ce=
nter"></pre>
<pre>Secdispatch mailing list<br><a href=3D"mailto:Secdispatch@ietf=2Eorg"=
>Secdispatch@ietf=2Eorg</a><br><a href=3D"https://www=2Eietf=2Eorg/mailman/=
listinfo/secdispatch">https://www=2Eietf=2Eorg/mailman/listinfo/secdispatch=
</a><o:p></o:p></pre>
</blockquote>
<pre><br>--<br>Iotops mailing list<br><a href=3D"mailto:Iotops@ietf=2Eorg"=
>Iotops@ietf=2Eorg</a><br><a href=3D"https://www=2Eietf=2Eorg/mailman/listi=
nfo/iotops">https://www=2Eietf=2Eorg/mailman/listinfo/iotops</a><br>IMPORTA=
NT NOTICE: The contents of this email and any attachments are confidential =
and may also be privileged=2E If you are not the intended recipient, please=
 notify the sender immediately and do not disclose the contents to any othe=
r person, use it for any purpose, or store or copy the information in any m=
edium=2E Thank you=2E<o:p></o:p></pre>
</blockquote>
</div>
</div>
IMPORTANT NOTICE: The contents of this email and any attachments are confi=
dential and may also be privileged=2E If you are not the intended recipient=
, please notify the sender immediately and do not disclose the contents to =
any other person, use it for any purpose,
 or store or copy the information in any medium=2E Thank you=2E

</blockquote></div></body></html>

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Subject: Re: [Anima] [Secdispatch] [Iotops] I-D: Deploying Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
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To: "secdispatch\@ietf.org" <secdispatch@ietf.org>, Jim Zubov <ietf-list@commercebyte.com>
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Subject: Re: [Anima] [Iotops] [Secdispatch] I-D: Deploying Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
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Jim Zubov <ietf-list@commercebyte.com> wrote:
    > I just want to emphasize once again that the relay is end to end TLS.
    > There are some IoT management solutions on the market, both open sour=
ce
    > and proprietary, but as far as I can tell none of them fully follows
    > the end to end paradigm. I believe it's worth having a universal
    > cross-vendor solution that handles SNIF device onboarding, maintains
    > the credentials in a local secure storage, and consolidates https bas=
ed
    > management interface hosted by individual devices through SNIF.

Even if SNIF winds up "just" being a standardized way to call-home, I think
that has value.    I think that some text needs to be added contrasting SNIF
to UPnP and RFC6887 (Port Control Protocol).

What I haven't heard any comments in on the SECDISPATCH point of view about
what to do with this document.    Have the SECDISPATCH chairs put it on the
agenda, or is there any agreement that maybe IOTOPS should dispatch it?

Hannes: what do you think?


=2D-
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 I=C3=B8T consulti=
ng )
           Sandelman Software Works Inc, Ottawa and Worldwide





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From: Eric Rescorla <ekr@rtfm.com>
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To: Michael Richardson <mcr+ietf@sandelman.ca>
Cc: "secdispatch@ietf.org" <secdispatch@ietf.org>, Jim Zubov <ietf-list@commercebyte.com>,  Hannes Tschofenig <Hannes.Tschofenig@arm.com>, "anima@ietf.org" <anima@ietf.org>, "iotops@ietf.org" <iotops@ietf.org>
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Subject: Re: [Anima] [Iotops] [Secdispatch] I-D: Deploying Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
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On Sat, Mar 5, 2022 at 11:44 AM Michael Richardson <mcr+ietf@sandelman.ca>
wrote:

>
> Jim Zubov <ietf-list@commercebyte.com> wrote:
>     > I just want to emphasize once again that the relay is end to end TL=
S.
>     > There are some IoT management solutions on the market, both open
> source
>     > and proprietary, but as far as I can tell none of them fully follow=
s
>     > the end to end paradigm. I believe it's worth having a universal
>     > cross-vendor solution that handles SNIF device onboarding, maintain=
s
>     > the credentials in a local secure storage, and consolidates https
> based
>     > management interface hosted by individual devices through SNIF.
>
> Even if SNIF winds up "just" being a standardized way to call-home, I thi=
nk
> that has value.    I think that some text needs to be added contrasting
> SNIF
> to UPnP and RFC6887 (Port Control Protocol).
>
> What I haven't heard any comments in on the SECDISPATCH point of view abo=
ut
> what to do with this document.


I provided some comments at the end of my review. Briefly, I have doubts
that this
is the best technical approach and so I think if we are to work on this
problem
we should start by working out the problem statement and requirements first=
.


  Have the SECDISPATCH chairs put it on the
> agenda,


I think putting it on the SECDISPATCH agenda would be appropriate



> or is there any agreement that maybe IOTOPS should dispatch it?
>

I think that would be a bad idea. There's nothing really IoT-specific here.

-Ekr



> Hannes: what do you think?
>
>
> --
> Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 I=C3=B8T consul=
ting )
>            Sandelman Software Works Inc, Ottawa and Worldwide
>
>
>
>
> _______________________________________________
> Anima mailing list
> Anima@ietf.org
> https://www.ietf.org/mailman/listinfo/anima
>

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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Sat, Mar 5, 2022 at 11:44 AM Micha=
el Richardson &lt;<a href=3D"mailto:mcr%2Bietf@sandelman.ca">mcr+ietf@sande=
lman.ca</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"=
margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-lef=
t:1ex"><br>
Jim Zubov &lt;<a href=3D"mailto:ietf-list@commercebyte.com" target=3D"_blan=
k">ietf-list@commercebyte.com</a>&gt; wrote:<br>
=C2=A0 =C2=A0 &gt; I just want to emphasize once again that the relay is en=
d to end TLS.<br>
=C2=A0 =C2=A0 &gt; There are some IoT management solutions on the market, b=
oth open source<br>
=C2=A0 =C2=A0 &gt; and proprietary, but as far as I can tell none of them f=
ully follows<br>
=C2=A0 =C2=A0 &gt; the end to end paradigm. I believe it&#39;s worth having=
 a universal<br>
=C2=A0 =C2=A0 &gt; cross-vendor solution that handles SNIF device onboardin=
g, maintains<br>
=C2=A0 =C2=A0 &gt; the credentials in a local secure storage, and consolida=
tes https based<br>
=C2=A0 =C2=A0 &gt; management interface hosted by individual devices throug=
h SNIF.<br>
<br>
Even if SNIF winds up &quot;just&quot; being a standardized way to call-hom=
e, I think<br>
that has value.=C2=A0 =C2=A0 I think that some text needs to be added contr=
asting SNIF<br>
to UPnP and RFC6887 (Port Control Protocol).<br>
<br>
What I haven&#39;t heard any comments in on the SECDISPATCH point of view a=
bout<br>
what to do with this document.=C2=A0</blockquote><div><br></div><div>I prov=
ided some comments at the end of my review. Briefly, I have doubts that thi=
s</div><div>is the best technical approach and so I think if we are to work=
 on this problem</div><div>we should start by working out the problem state=
ment and requirements first.</div><div><br></div><div><br></div><blockquote=
 class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px so=
lid rgb(204,204,204);padding-left:1ex"> =C2=A0 Have the SECDISPATCH chairs =
put it on the<br>
agenda,</blockquote><div><br></div><div>I think putting it on the SECDISPAT=
CH agenda would be appropriate</div><div><br></div><div>=C2=A0<br></div><bl=
ockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-lef=
t:1px solid rgb(204,204,204);padding-left:1ex"> or is there any agreement t=
hat maybe IOTOPS should dispatch it?<br></blockquote><div><br></div><div>I =
think that would be a bad idea. There&#39;s nothing really IoT-specific her=
e.</div><div><br></div><div>-Ekr</div><div><br></div><div><br></div><blockq=
uote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1p=
x solid rgb(204,204,204);padding-left:1ex">
<br>
Hannes: what do you think?<br>
<br>
<br>
--<br>
Michael Richardson &lt;<a href=3D"mailto:mcr%2BIETF@sandelman.ca" target=3D=
"_blank">mcr+IETF@sandelman.ca</a>&gt;=C2=A0 =C2=A0. o O ( IPv6 I=C3=B8T co=
nsulting )<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Sandelman Software Works Inc, Otta=
wa and Worldwide<br>
<br>
<br>
<br>
<br>
_______________________________________________<br>
Anima mailing list<br>
<a href=3D"mailto:Anima@ietf.org" target=3D"_blank">Anima@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/anima" rel=3D"noreferrer" =
target=3D"_blank">https://www.ietf.org/mailman/listinfo/anima</a><br>
</blockquote></div></div>

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Subject: Re: [Anima] [Secdispatch] [Iotops] I-D: Deploying Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
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Hannes Tschofenig <Hannes.Tschofenig@arm.com> wrote:
    > Based on what you wrote below I was actually wondering if the use of
    > TLS or DTLS at the application layer wouldn=E2=80=99t even be a better

It took me a few moments to realize you meant ATLAS.
There is also, now, oblivious HTTP/TLS.

=2D-
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 I=C3=B8T consulti=
ng )
           Sandelman Software Works Inc, Ottawa and Worldwide





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Subject: Re: [Anima] [Secdispatch] [Iotops] I-D: Deploying Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
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I agree with Hannes that a pre-existing relay infrastructure can be used to=
 tunnel TLS in place of SNIF relay=2E The CA proxy is still needed to maint=
ain the cert=2E

As per Eric Rescorla's arguments, i can also envision a possibility to upg=
rade an established SNIF control socket to MASQUE over H2, or to use MASQUE=
 over QUIC as an alternative=2E However I still don't see any added value i=
n doing so, opposed to multiple added complications, as I don't see a pract=
ical case with a large number of concurrent SNIF service connections=2E
If anybody has a different opinion please chime in=2E

On March 5, 2022 3:15:27 PM EST, Michael Richardson <mcr+ietf@sandelman=2E=
ca> wrote:
>
>Hannes Tschofenig <Hannes=2ETschofenig@arm=2Ecom> wrote:
>    > Based on what you wrote below I was actually wondering if the use o=
f
>    > TLS or DTLS at the application layer wouldn=E2=80=99t even be a bet=
ter
>
>It took me a few moments to realize you meant ATLAS=2E
>There is also, now, oblivious HTTP/TLS=2E
>
>--
>Michael Richardson <mcr+IETF@sandelman=2Eca>   =2E o O ( IPv6 I=C3=B8T co=
nsulting )
>           Sandelman Software Works Inc, Ottawa and Worldwide
>
>
>
>

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<html><head></head><body>I agree with Hannes that a pre-existing relay infr=
astructure can be used to tunnel TLS in place of SNIF relay=2E The CA proxy=
 is still needed to maintain the cert=2E<br><br>As per Eric Rescorla's argu=
ments, i can also envision a possibility to upgrade an established SNIF con=
trol socket to MASQUE over H2, or to use MASQUE over QUIC as an alternative=
=2E However I still don't see any added value in doing so, opposed to multi=
ple added complications, as I don't see a practical case with a large numbe=
r of concurrent SNIF service connections=2E<br>If anybody has a different o=
pinion please chime in=2E<br><br><div class=3D"gmail_quote">On March 5, 202=
2 3:15:27 PM EST, Michael Richardson &lt;mcr+ietf@sandelman=2Eca&gt; wrote:=
<blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0=2E8ex; bor=
der-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre dir=3D"auto" class=3D"k9mail"><br>Hannes Tschofenig &lt;Hannes=2ETsch=
ofenig@arm=2Ecom&gt; wrote:<br><blockquote class=3D"gmail_quote" style=3D"m=
argin: 0pt 0pt 1ex 0=2E8ex; border-left: 1px solid #729fcf; padding-left: 1=
ex;">Based on what you wrote below I was actually wondering if the use of<b=
r>TLS or DTLS at the application layer wouldn=E2=80=99t even be a better<br=
></blockquote><br>It took me a few moments to realize you meant ATLAS=2E<br=
>There is also, now, oblivious HTTP/TLS=2E<br><br>--<br>Michael Richardson =
&lt;mcr+IETF@sandelman=2Eca&gt;   =2E o O ( IPv6 I=C3=B8T consulting )<br> =
          Sandelman Software Works Inc, Ottawa and Worldwide<br><br><br><br=
><br></pre></blockquote></div></body></html>
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Eric Rescorla <ekr@rtfm.com> wrote:
    > I provided some comments at the end of my review. Briefly, I have dou=
bts
    > that this
    > is the best technical approach and so I think if we are to work on th=
is
    > problem
    > we should start by working out the problem statement and requirements=
 first.

I would agree with you.

In particular,  I think that UPnP or PCP, in combination with some kind
of dynamic DNS infrastructure, could do everything SNIF does, and do it in a
far more decentralized fashion.

So what is it that SNIF does that is truly different?

    >> Have the SECDISPATCH chairs put it on the
    >> agenda,

    > I think putting it on the SECDISPATCH agenda would be appropriate

Good.

    >> or is there any agreement that maybe IOTOPS should dispatch it?

    > I think that would be a bad idea. There's nothing really IoT-specific=
 here.

There is often nothing IoT specific about many things.
There is however a community of people who understand the set of tradeoff in
deploying systems at large scale that have no human at the helm.

=2D-
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 I=C3=B8T consulti=
ng )
           Sandelman Software Works Inc, Ottawa and Worldwide





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From: Eric Rescorla <ekr@rtfm.com>
Date: Sat, 5 Mar 2022 14:46:08 -0800
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To: Michael Richardson <mcr+ietf@sandelman.ca>
Cc: "secdispatch@ietf.org" <secdispatch@ietf.org>, Jim Zubov <ietf-list@commercebyte.com>,  Hannes Tschofenig <Hannes.Tschofenig@arm.com>, "anima@ietf.org" <anima@ietf.org>, "iotops@ietf.org" <iotops@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/anima/yHKQptHTglyxrConjrjJWc6bisc>
Subject: Re: [Anima] [Iotops] [Secdispatch] I-D: Deploying Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
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On Sat, Mar 5, 2022 at 2:27 PM Michael Richardson <mcr+ietf@sandelman.ca>
wrote:

>
> Eric Rescorla <ekr@rtfm.com> wrote:
>
>     >> or is there any agreement that maybe IOTOPS should dispatch it?
>
>     > I think that would be a bad idea. There's nothing really
> IoT-specific here.
>
> There is often nothing IoT specific about many things.
> There is however a community of people who understand the set of tradeoff
> in
> deploying systems at large scale that have no human at the helm.
>

I think it would be fine to consult IOTOPs. I'm merely saying that I don't
think it's
a good idea to have them dispatch something that is so obviously generic.

-Ekr

--000000000000d44ef205d9806728
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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Sat, Mar 5, 2022 at 2:27 PM Michae=
l Richardson &lt;<a href=3D"mailto:mcr%2Bietf@sandelman.ca">mcr+ietf@sandel=
man.ca</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex"><br>
Eric Rescorla &lt;<a href=3D"mailto:ekr@rtfm.com" target=3D"_blank">ekr@rtf=
m.com</a>&gt; wrote:<br><br>
=C2=A0 =C2=A0 &gt;&gt; or is there any agreement that maybe IOTOPS should d=
ispatch it?<br>
<br>
=C2=A0 =C2=A0 &gt; I think that would be a bad idea. There&#39;s nothing re=
ally IoT-specific here.<br>
<br>
There is often nothing IoT specific about many things.<br>
There is however a community of people who understand the set of tradeoff i=
n<br>
deploying systems at large scale that have no human at the helm.<br></block=
quote><div><br></div><div>I think it would be fine to consult IOTOPs. I&#39=
;m merely saying that I don&#39;t think it&#39;s</div><div>a good idea to h=
ave them dispatch something that is so obviously generic.</div><div><br></d=
iv><div>-Ekr</div></div></div>

--000000000000d44ef205d9806728--


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Archived-At: <https://mailarchive.ietf.org/arch/msg/anima/_G9Azi5_Jk0Sq9KDPCv3qSmaJuI>
Subject: [Anima] RFC8366bis at IETF113 (was Re: Call for agenda items/attendance ANIMA @ IETF 113)
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On 2022-02-22 11:37, tte@cs.fau.de wrote:
> Please submit your requests for Agenda items in reply to this email,
> as early as possible, so that we can upload an agenda more timely
> than we typically do.
> 
> Note that you do not need to have the slides by the time you're
> asking for the slot !
> 
> Please send requests to anima-chairs@ietf.org.
> Copy anima@ietf.org if you like.
> 
>      Topic/Title
>      Name of Presenter(s)
>      Length of time requested
>      If applicable: name of draft(s) discussed


Topic: RFC8366bis
Presenter: Michael Richardson
Time requested: 15 minutes
Drafts: draft-ietf-anima-rfc8366bis

> Also: Once you have your slides, go to:
> 
>    https://datatracker.ietf.org/meeting/113/session/anima

Slides (5 of them) uploaded.
Intent is to focus on discussion.

This is a diff against RFC8366, which is actually instructive.
https://www.ietf.org/rfcdiff?url1=rfc8366&url2=draft-ietf-anima-rfc8366bis-00

ANIMA is in the last slot on Friday afternoon.
It is not conflicted with netmod or netconf, or any other IoT 
interesting groups, I think.



From nobody Sun Mar  6 15:17:50 2022
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Subject: [Anima] I-D Action: draft-ietf-anima-brski-cloud-03.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Autonomic Networking Integrated Model and Approach WG of the IETF.

        Title           : BRSKI Cloud Registrar
        Authors         : Owen Friel
                          Rifaat Shekh-Yusef
                          Michael Richardson
	Filename        : draft-ietf-anima-brski-cloud-03.txt
	Pages           : 22
	Date            : 2022-03-06

Abstract:
   This document specifies the behaviour of a BRSKI Cloud Registrar, and
   how a pledge can interact with a BRSKI Cloud Registrar when
   bootstrapping.

   RFCED REMOVE: It is being actively worked on at https://github.com/
   anima-wg/brski-cloud


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-anima-brski-cloud/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-anima-brski-cloud-03.html

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-brski-cloud-03


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts



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Subject: [Anima] Operational Considerations for BRSKI Registrar
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Content-Type: text/plain; charset=utf-8
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internet-drafts@ietf.org wrote:
    > A new version of I-D, draft-richardson-anima-registrar-considerations=
-05.txt
    > has been successfully submitted by Michael Richardson and posted to t=
he
    > IETF repository.

    > Name:		draft-richardson-anima-registrar-considerations
    > Revision:	05
    > Title:		Operational Considerations for BRSKI Registrar

    > Html:           https://www.ietf.org/archive/id/draft-richardson-anim=
a-registrar-considerations-05.html
    > Diff:           https://www.ietf.org/rfcdiff?url2=3Ddraft-richardson-=
anima-registrar-considerations-05

I have posted a new version of my draft on operational considerations for a
BRSKI Registrar.
The document was not renewed during 2021 due to other priorities.

I wrote this document to explore some of the design issues around using BRS=
KI
in a variety of network scenarios:  Tier-1 ISPs, Enterprises, and Home Netw=
orks.

The different deployment scenarios do not call for the same technologies in
the registrar, and this is part of the point of this document.

One of things in this document is the Enterprise/Tier-1 asynchronous
deployment model, where the "Northbound" BRSKI-MASA interface is not direct=
ly
connected to the "Southbound" BRSKI-EST interface.  (See figure 3).
In such a case, it may not be the case that the TLS Client Certificate used
by the BRSKI-MASA interface is identical to the Registrar/Domain certificat=
e.

This explanation was useful in getting some of the final discuss details in
RFC8995, which were further clarified in constrainted-voucher section 4,
about pinning.

In creating Figure 1, with Denver/SanJose/NYC/Frankfurt/etc.  it was my
intention to discuss issues of onboarding, database synchronization,
certificate renewal (via EST)... in the face of network partition.
That content has not yet made it into this document.

=2D-
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 I=C3=B8T consulti=
ng )
           Sandelman Software Works Inc, Ottawa and Worldwide





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To: secdispatch@ietf.org, Michael Richardson <mcr+ietf@sandelman.ca>, Eric Rescorla <ekr@rtfm.com>, "secdispatch@ietf.org" <secdispatch@ietf.org>, Jim Zubov <ietf-list@commercebyte.com>, Hannes Tschofenig <Hannes.Tschofenig@arm.com>, "anima@ietf.org" <anima@ietf.org>, "iotops@ietf.org" <iotops@ietf.org>
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Subject: Re: [Anima] [Secdispatch] [Iotops] I-D: Deploying Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
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On March 5, 2022 5:27:48 PM EST, Michael Richardson <mcr+ietf@sandelman=2E=
ca> wrote:
>
>Eric Rescorla <ekr@rtfm=2Ecom> wrote:
>    > I provided some comments at the end of my review=2E Briefly, I have=
 doubts
>    > that this
>    > is the best technical approach and so I think if we are to work on =
this
>    > problem
>    > we should start by working out the problem statement and requiremen=
ts first=2E
>
>I would agree with you=2E
>
>In particular,  I think that UPnP or PCP, in combination with some kind
>of dynamic DNS infrastructure, could do everything SNIF does, and do it i=
n a
>far more decentralized fashion=2E
>
>So what is it that SNIF does that is truly different?


I had a discussion with Eric about it=2E

SNIF can work for an IoT device behind NAT or firewall through the relay=
=2E For IoT devices that have a clean static IP it's possible to use DDNS t=
o directly connect to the device instead of the relay (not described in my =
draft but is fairly easy to implement through a peripheral process)=2E

Regarding the certs, a CA, for example Let's Encrypt, operates in terms of=
 a 'Registered Domain', e=2Eg=2E something=2Ecom, that you purchase from a =
TLD=2E Registered domains are not free, hence having a unique registered do=
main per an IoT device is not affordable - even if it's $2/yr nobody's goin=
g to eat that cost, and very few IoT end users will be willing to set up th=
eir own additional billing=2E
Therefore, hostnames for individual IoT devices should be subdomains of a =
certain registered domain=2E Since a CA sets limits on API calls within eac=
h registered domain, if you allow IoT devices to randomly interact with the=
 CA you set yourself on a path to a DoS=2E So, having a CA proxy that maint=
ains control over the DNS zone and interacts with the CA (without having ac=
cess to anybody's private keys) while enforcing anti-abuse policies sounds =
like a good solution=2E
As for the security risk, it lies in the CA challenge=2E Having a DDNS ser=
ver for a zone poses same risk as a CA proxy that has sole control over a D=
NS zone, with additional headaches and risks of DDNS authentication for eac=
h IoT device=2E
If anybody disagrees or has something to add - please chime in=2E


>
>    >> Have the SECDISPATCH chairs put it on the
>    >> agenda,
>
>    > I think putting it on the SECDISPATCH agenda would be appropriate
>
>Good=2E
>
>    >> or is there any agreement that maybe IOTOPS should dispatch it?
>
>    > I think that would be a bad idea=2E There's nothing really IoT-spec=
ific here=2E
>
>There is often nothing IoT specific about many things=2E
>There is however a community of people who understand the set of tradeoff=
 in
>deploying systems at large scale that have no human at the helm=2E
>
>--
>Michael Richardson <mcr+IETF@sandelman=2Eca>   =2E o O ( IPv6 I=C3=B8T co=
nsulting )
>           Sandelman Software Works Inc, Ottawa and Worldwide
>
>
>
>


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Archived-At: <https://mailarchive.ietf.org/arch/msg/anima/OxQmpoiW_v1jiG2F75UHEYKtcXU>
Subject: Re: [Anima] ***SPAM**** Re: [Secdispatch] [Iotops] I-D: Deploying Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS Forwarding (SNIF)
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--------------lpr8kEKEbcaT3HJxYZIsZj6U
Content-Type: multipart/mixed; boundary="------------30Le0bjotYBPvT00EHjebSTf";
 protected-headers="v1"
From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
To: Jim Zubov <ietf-list@commercebyte.com>, secdispatch@ietf.org,
 Michael Richardson <mcr+ietf@sandelman.ca>, Eric Rescorla <ekr@rtfm.com>,
 Hannes Tschofenig <Hannes.Tschofenig@arm.com>,
 "anima@ietf.org" <anima@ietf.org>, "iotops@ietf.org" <iotops@ietf.org>
Message-ID: <d5fc64a9-9d4a-8f8b-03fd-cde8d4125648@cs.tcd.ie>
Subject: Re: ***SPAM**** Re: [Secdispatch] [Anima] [Iotops] I-D: Deploying
 Publicly Trusted TLS Servers on IoT Devices Using SNI-based End-to-End TLS
 Forwarding (SNIF)
References: <0075B437-024A-4D84-ABD7-92FE8DAFA59F@commercebyte.com>
 <1865.1644434146@localhost> <E1nHwaz-0000LM-I5@ocean1.commercebyte.com>
 <4026.1644516168@localhost>
 <685366A1-01F4-4788-B025-0F5F4CE7947F@commercebyte.com>
 <DBBPR08MB591577EC79C3D11114AA747CFA3C9@DBBPR08MB5915.eurprd08.prod.outlook.com>
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 <665685D3-B9AA-4A5E-B5B0-33D313A40716@commercebyte.com>
 <6296.1646509436@localhost>
 <CABcZeBM9sUs2cZyf8564-501p0RUve_FBvEBAd45k2RhyRbFqg@mail.gmail.com>
 <22243.1646519268@localhost>
 <1075E99A-C00A-455E-97E8-2A29BA175F8F@commercebyte.com>
In-Reply-To: <1075E99A-C00A-455E-97E8-2A29BA175F8F@commercebyte.com>

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--------------Etq7lIqz2gK915AbJJrIdQRa
Content-Type: application/pgp-keys; name="OpenPGP_0x5AB2FAF17B172BEA.asc"
Content-Disposition: attachment; filename="OpenPGP_0x5AB2FAF17B172BEA.asc"
Content-Description: OpenPGP public key
Content-Transfer-Encoding: quoted-printable

-----BEGIN PGP PUBLIC KEY BLOCK-----

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From nobody Mon Mar  7 07:52:00 2022
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Subject: [Anima] I-D Action: draft-ietf-anima-jws-voucher-03.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Autonomic Networking Integrated Model and Approach WG of the IETF.

        Title           : JWS signed Voucher Artifacts for Bootstrapping Protocols
        Authors         : Michael Richardson
                          Thomas Werner
	Filename        : draft-ietf-anima-jws-voucher-03.txt
	Pages           : 14
	Date            : 2022-03-07

Abstract:
   RFC8366 defines a digital artifact called voucher as a YANG-defined
   JSON document that has been signed using a Cryptographic Message
   Syntax (CMS) structure.  This memo introduces a variant of the
   voucher structure in which CMS is replaced by the JSON Object Signing
   and Encryption (JOSE) mechanism described in RFC7515 to better
   support use-cases in which JOSE is preferred over CMS.

   In addition to explaining how the format is created, MIME types are
   registered and examples are provided.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-anima-jws-voucher/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-anima-jws-voucher-03

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-jws-voucher-03


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts



From nobody Mon Mar  7 12:55:02 2022
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To: Toerless Eckert <toerless.eckert@i4.informatik.uni-erlangen.de>
Cc: Toerless Eckert <tte@cs.fau.de>, anima@ietf.org
References: <YiJXO7m00lQuVmES@faui48e.informatik.uni-erlangen.de> <72d1ae7b-a707-ab20-806f-e4967ca250a1@gmail.com> <YiYLNNPb/cmIwSIe@faui48e.informatik.uni-erlangen.de>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima] ANIMA: pls comment: draft-eckert-anima-services-dns-autoconfig-01 / draft-eckert-anima-grasp-dnssd-03
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On 08-Mar-22 02:40, Toerless Eckert wrote:
> Thanks, Brian
> 
> I hope i captured your concerns correctly in github:
> 
> https://github.com/anima-wg/grasp-dns/issues/3

Yes, thanks.

> 
> For draft-carpenter-anima-grasp-config i am a bit at a loss when & why
> one would apply the encodings defined there. Is this meant to be
> ?mandatory? objective parameters whenever you flood ? 

No, it would be a stand-alone objective. I was looking for a way to
solve one problem (how to tell an entire AN that the default GRASP
maximum message size should be changed) and decided to generalise the
solution for any possible GRASP config action. So I stole from
your proposal.

Possibly we should suggest a recommended way of using CBOR or JSON
maps in any GRASP objective, whenever that degree of extensibility
is needed.

> In which case
> i would have to see that i make grasp-dnssd include these parameters because
> it is meant to flood ??

No, I don't that that is necessary.

> 
> Could you maybe give an example ? 

I hope I've clarified enough that you don't need an example. The code
I cited reads in a JSON file, constructs a (Python) map that reflects
that file, and embeds it in a GRASP flood. I've also included an ASA in
my GRASP core, that receives the flood and applies any config changes.

> I am just guessing, but
> the DNS-SD service announcements are typically meant to be used to allow
> selecting a server and then connecting to it. But the general flooding of
> information is not limited to announcing servers. It could simply be
> about flooding of e.g.: intent which has to be just locally followed
> ("network wider parameters"). Just as a counter-example of what would
> IMHO NOT fit into the grasp-dnssd case...

Yes, absolutely. So we could generalise this as "flood any JSON we want
to all autonomic nodes".

Regards
     Brian

> 
> Cheers
>      Toerless
> 
> On Sat, Mar 05, 2022 at 02:03:37PM +1300, Brian E Carpenter wrote:
>> Hi,
>>
>> I can reply fairly quickly, since I studied these two drafts before,
>> and prototyped the draft-eckert-anima-grasp-dnssd mechanism.
>> I haven't exercised that code recently, but it can be found at:
>> https://github.com/becarpenter/graspy/blob/master/GetDNSSD2.py
>> https://github.com/becarpenter/graspy/blob/master/AskDNSSD2.py
>>
>> So, the mechanism for mapping DNSSD info to a GRASP objective works.
>>
>> The question that came to me was whether the proposed family of
>> SRV.<service-name> objectives was too general or not general enough.
>>
>> Too general, because it claims to be applicable to, well, anything.
>>
>> Not general enough, because for draft-carpenter-anima-grasp-config,
>> it didn't make much sense to define that as SRV.GraspConfig. However,
>> I found the CBOR map approach to defining an extensible objective very
>> useful. Hence, the code at:
>> https://github.com/becarpenter/graspy/blob/master/GRASPconfig.py
>> does *not* use the exact draft-eckert-anima-grasp-dnssd mapping,
>> but is directly based on it.
>>
>> All the same, I think this approach to integrating GRASP-based service
>> management with DNSSD and with legacy NOC services is very interesting
>> and seems to be something ANIMA should consider carefully.
>>
>> Could the authors deal with the various TBDs in both documents?
>>
>> Regards
>>     Brian Carpenter
>>
>> On 05-Mar-22 07:15, Toerless Eckert wrote:
>>> Dear ANIMA WG members,
>>>
>>> I have refreshed the two drafts to complete a solution for a real standalone ACP:
>>>
>>> a) use DNS-SD service compatible service discovery in ANIMA/ACP via GRASP:
>>>      https://datatracker.ietf.org/doc/draft-eckert-anima-grasp-dnssd/
>>> b) Use service discovery for ANIMA/ACP to autoconfigure its own core services
>>>      https://datatracker.ietf.org/doc/draft-eckert-anima-services-dns-autoconfig/
>>>
>>> Could I ask you to review and comment these two drafts ?
>>>
>>> If the responses are not too averse, I will request a call for adoption.
>>>
>>> Thanks
>>>       Toerless
>>>
>>> Btw: I am happy to swap mutual review cycles, so if you are waiting for more reviews
>>> of your very own draft for ANIMA, i'll be happy to reciprocate ;-))
>>>
>>> _______________________________________________
>>> Anima mailing list
>>> Anima@ietf.org
>>> https://www.ietf.org/mailman/listinfo/anima
>>>
> 


From nobody Mon Mar  7 14:21:50 2022
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Subject: [Anima] I-D Action: draft-ietf-anima-brski-async-enroll-05.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Autonomic Networking Integrated Model and Approach WG of the IETF.

        Title           : BRSKI-AE: Alternative Enrollment Protocols in BRSKI
        Authors         : David von Oheimb
                          Steffen Fries
                          Hendrik Brockhaus
                          Eliot Lear
	Filename        : draft-ietf-anima-brski-async-enroll-05.txt
	Pages           : 30
	Date            : 2022-03-07

Abstract:
   This document enhances Bootstrapping Remote Secure Key Infrastructure
   (BRSKI, [RFC8995]) to allow employing alternative enrollment
   protocols, such as CMP.

   Using self-contained signed objects, the origin of enrollment
   requests and responses can be authenticated independently of message
   transfer.  This supports end-to-end security and asynchronous
   operation of certificate enrollment and provides flexibility where to
   authenticate and authorize certification requests.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-anima-brski-async-enroll/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-anima-brski-async-enroll-05

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-brski-async-enroll-05


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts



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In preparation of IETF 113, where I'm going to provide a brief status
update on the draft,
I uploaded on Monday draft version 05 of BRSKI-AE, with the following
changes since version 04:

* David von Oheimb became the editor.
* Streamline wording, consolidate terminology, improve grammar, etc.
* Shift the emphasis towards supporting alternative enrollment protocols.
* Update the title accordingly - preliminary change to be approved.
* Move comments on EST and detailed application examples to informative annex.
* Move the remaining text of section 3 as two new sub-sections of section 1.

Are there any objections to updating the title to:

   BRSKI-AE: Alternative Enrollment Protocols in BRSKI

which reflects much better the new focus of the document?

Moreover,  I suggest renaming the repository etc. to, e.g.,

   https://github.com/anima-wg/anima-brski-ae

Unfortunately we have not heard back from Eliot regarding the subsection
on EST use.
So all we could do there was to try to maintain it in line with the rest
of the document,
while more work would be needed to clarify open points and fill in some
more detail.

We recently found that also the subsection on CMP use needs some further
detail, 
as indicated by the ToDo there. We are going to provide it with the next
version.

To sum up, the only open issues that we see are in section

   5. Examples for signature-wrapping using existing enrollment
protocols

Feedback on the revised BRSKI-AE text (i.e., all of the document) is
most welcome, 
ideally already before the conference such that we may address issues
there.

 David


On Mon, 2022-03-07 at 14:21 -0800, internet-drafts@ietf.org wrote:
> 
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> This draft is a work item of the Autonomic Networking Integrated Model
> and Approach WG of the IETF.
> 
>         Title           : BRSKI-AE: Alternative Enrollment Protocols
> in BRSKI
>         Authors         : David von Oheimb
>                           Steffen Fries
>                           Hendrik Brockhaus
>                           Eliot Lear
>         Filename        : draft-ietf-anima-brski-async-enroll-05.txt
>         Pages           : 30
>         Date            : 2022-03-07
> 
> Abstract:
>    This document enhances Bootstrapping Remote Secure Key
> Infrastructure
>    (BRSKI, [RFC8995]) to allow employing alternative enrollment
>    protocols, such as CMP.
> 
>    Using self-contained signed objects, the origin of enrollment
>    requests and responses can be authenticated independently of
> message
>    transfer.  This supports end-to-end security and asynchronous
>    operation of certificate enrollment and provides flexibility where
> to
>    authenticate and authorize certification requests.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-anima-brski-async-enroll/
> 
> There is also an htmlized version available at:
> https://datatracker.ietf.org/doc/html/draft-ietf-anima-brski-async-enroll-05
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-brski-async-enroll-05
> 
> 
> Internet-Drafts are also available by rsync at
> rsync.ietf.org::internet-drafts

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Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable

<html><head></head><body><div>In preparation of IETF 113, where I'm going t=
o provide a brief status update on the draft,<br>I uploaded on Monday&nbsp;=
<a href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-anima-brski-asy=
nc-enroll-05">draft version 05 of BRSKI-AE</a>, with the following changes =
since version 04:<br><br></div><pre>* David von Oheimb became the editor.</=
pre><pre>* Streamline wording, consolidate terminology, improve grammar, et=
c.</pre><pre>* Shift the emphasis towards supporting alternative enrollment=
 protocols.</pre><pre>* Update the title accordingly - preliminary change t=
o be approved.</pre><pre>* Move comments on EST and detailed application ex=
amples to informative annex.</pre><pre>* Move the remaining text of section=
 3 as two new sub-sections of section 1.</pre><div><br></div><div><span></s=
pan></div><div>Are there any objections to updating the title to:</div><div=
><br></div><div>&nbsp; &nbsp;BRSKI-AE: Alternative Enrollment Protocols in =
BRSKI</div><div><br></div><div>which reflects much better the new focus of =
the document?</div><div><br>Moreover, &nbsp;I suggest renaming the reposito=
ry etc. to, e.g.,</div><div><br></div><div>&nbsp; &nbsp;<a href=3D"https://=
github.com/anima-wg/anima-brski-ae">https://github.com/anima-wg/anima-brski=
-ae</a></div><div><br></div><div>Unfortunately we have not heard back from =
Eliot regarding the subsection on EST use.<br>So all we could do there was =
to try to maintain it in line with the rest of the document,<br>while more =
work would be needed to clarify open points and fill in some more detail.</=
div><div><br></div><div>We recently found that also the subsection on CMP u=
se needs some further detail, <br>as indicated by the ToDo there.&nbsp;We a=
re going to provide it with the next version.<br><br></div><div>To sum up, =
the only open issues that we see are in section<br><br>&nbsp; &nbsp;5.  Exa=
mples for signature-wrapping using existing enrollment protocols</div><div>=
<br></div><div>Feedback on the revised BRSKI-AE text (i.e., all of the docu=
ment) is most welcome,&nbsp;<br>ideally already before the conference such =
that we may address issues there.</div><div><br></div><div><span class=3D"A=
pple-tab-span" style=3D"white-space:pre">	</span>David</div><div><br></div>=
<div><br></div><div>On Mon, 2022-03-07 at 14:21 -0800, internet-drafts@ietf=
.org wrote:</div><blockquote type=3D"cite" style=3D"margin:0 0 0 .8ex; bord=
er-left:2px #729fcf solid;padding-left:1ex"><div><br></div><div>A New Inter=
net-Draft is available from the on-line Internet-Drafts directories.<br></d=
iv><div>This draft is a work item of the Autonomic Networking Integrated Mo=
del and Approach WG of the IETF.<br></div><div><br></div><div>&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp; : BRSKI-AE: Alternative Enrollment Protocols in BRSKI<=
br></div><div>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Authors&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : David von Oheimb<br></div><div>&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ste=
ffen Fries<br></div><div>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp; Hendrik Brockhaus<br></div><div>&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Eliot Lear<br></=
div><div>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Filename&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : draft-ietf-anima-brski-async-enroll-05.t=
xt<br></div><div>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pages&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : 30<br></div><div>=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Date&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : 2022-03-07<br></div><div><br>=
</div><div>Abstract:<br></div><div>&nbsp;&nbsp; This document enhances Boot=
strapping Remote Secure Key Infrastructure<br></div><div>&nbsp;&nbsp; (BRSK=
I, [RFC8995]) to allow employing alternative enrollment<br></div><div>&nbsp=
;&nbsp; protocols, such as CMP.<br></div><div><br></div><div>&nbsp;&nbsp; U=
sing self-contained signed objects, the origin of enrollment<br></div><div>=
&nbsp;&nbsp; requests and responses can be authenticated independently of m=
essage<br></div><div>&nbsp;&nbsp; transfer.&nbsp; This supports end-to-end =
security and asynchronous<br></div><div>&nbsp;&nbsp; operation of certifica=
te enrollment and provides flexibility where to<br></div><div>&nbsp;&nbsp; =
authenticate and authorize certification requests.<br></div><div><br></div>=
<div><br></div><div>The IETF datatracker status page for this draft is:<br>=
</div><div><a href=3D"https://datatracker.ietf.org/doc/draft-ietf-anima-brs=
ki-async-enroll/">https://datatracker.ietf.org/doc/draft-ietf-anima-brski-a=
sync-enroll/</a><br></div><div><br></div><div>There is also an htmlized ver=
sion available at:<br></div><div><a href=3D"https://datatracker.ietf.org/do=
c/html/draft-ietf-anima-brski-async-enroll-05">https://datatracker.ietf.org=
/doc/html/draft-ietf-anima-brski-async-enroll-05</a><br></div><div><br></di=
v><div>A diff from the previous version is available at:<br></div><div><a h=
ref=3D"https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-anima-brski-async-enr=
oll-05">https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-anima-brski-async-en=
roll-05</a><br></div><div><br></div><div><br></div><div>Internet-Drafts are=
 also available by rsync at rsync.ietf.org::internet-drafts</div></blockquo=
te></body></html>

--=-FbbYUcKhPL2MxlMhkk0k--


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To: anima@ietf.org
References: <164636378996.28442.13652235231467425779@ietfa.amsl.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Date: Thu, 10 Mar 2022 13:34:58 +1300
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Subject: Re: [Anima] I-D Action: draft-ietf-anima-network-service-auto-deployment-01.txt
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Hi,

I have a few questions about this draft.

1) Format of objective-value:

objective-value = n-s-deployment-value ; An n-s-deployment-value is defined as Figure-1.

  n-s-deployment-value
      + service-information
          + source-ip-address
          + destination-ip-address
          + service-tag
      + resource-information
          + resource-requirement-pair
              + resource-type
              + resource-value

I don't understand this notation. What is it, and how is it
serialised as CBOR? For example, is it supposed to be a JSON-like
map of some kind (as proposed in draft-eckert-anima-grasp-dnssd or
draft-carpenter-anima-grasp-config)? We really need complete
CDDL, which can be checked automatically.

2) The proposal does not contain much detail yet.

"Resource requirements of different types can be described in
an objective option. The ResourceManager objective option supports
multi-faceted resource requirements and negotiation."

That implies a large amount of extension. How will extensibility
of "resourcetype" values be handled? An IANA registry? What
about "resvals" that are not a simple number?

Again, a JSON-like model might be appropriate, to allow easy
extensions. Would some extensions be general, and others vendor-
specific?

3) Will this proposal integrate with DetNet? (I have no knowledge
of how DetNet will be configured, but I expect that will involve
Yang and NetConf.)

4) More generally, I think this proposal needs to explain how it
will interact with NetConf, because today operators use NetConf.

Regards
    Brian Carpenter

On 04-Mar-22 16:16, internet-drafts@ietf.org wrote:
> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> This draft is a work item of the Autonomic Networking Integrated Model and Approach WG of the IETF.
> 
>          Title           : An Autonomic Mechanism for Resource-based Network Services Auto-deployment
>          Authors         : Joanna Dang
>                            Sheng Jiang
>                            Zongpeng Du
>                            Yujing
> 	Filename        : draft-ietf-anima-network-service-auto-deployment-01.txt
> 	Pages           : 13
> 	Date            : 2022-03-03
> 
> Abstract:
>     This document specifies an autonomic mechanism for resource-based
>     network services deployment through the Autonomic Control Plane (ACP)
>     in a network.  This mechanism uses the GeneRic Autonomic Signaling
>     Protocol (GRASP) in [RFC8990] to exchange the information among the
>     autonomic nodes so that the resource along the service path can be
>     coordinated.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-anima-network-service-auto-deployment/
> 
> There is also an htmlized version available at:
> https://datatracker.ietf.org/doc/html/draft-ietf-anima-network-service-auto-deployment-01
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-network-service-auto-deployment-01
> 
> 
> Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts
> 
> 
> _______________________________________________
> Anima mailing list
> Anima@ietf.org
> https://www.ietf.org/mailman/listinfo/anima
> 


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From: Toerless Eckert <toerless.eckert@i4.informatik.uni-erlangen.de>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima] ANIMA: pls comment: draft-eckert-anima-services-dns-autoconfig-01 / draft-eckert-anima-grasp-dnssd-03
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Thanks, Brian

I hope i captured your concerns correctly in github:

https://github.com/anima-wg/grasp-dns/issues/3

For draft-carpenter-anima-grasp-config i am a bit at a loss when & why
one would apply the encodings defined there. Is this meant to be
?mandatory? objective parameters whenever you flood ? In which case
i would have to see that i make grasp-dnssd include these parameters because
it is meant to flood ??

Could you maybe give an example ? I am just guessing, but
the DNS-SD service announcements are typically meant to be used to allow
selecting a server and then connecting to it. But the general flooding of
information is not limited to announcing servers. It could simply be
about flooding of e.g.: intent which has to be just locally followed
("network wider parameters"). Just as a counter-example of what would 
IMHO NOT fit into the grasp-dnssd case...

Cheers
    Toerless

On Sat, Mar 05, 2022 at 02:03:37PM +1300, Brian E Carpenter wrote:
> Hi,
> 
> I can reply fairly quickly, since I studied these two drafts before,
> and prototyped the draft-eckert-anima-grasp-dnssd mechanism.
> I haven't exercised that code recently, but it can be found at:
> https://github.com/becarpenter/graspy/blob/master/GetDNSSD2.py
> https://github.com/becarpenter/graspy/blob/master/AskDNSSD2.py
> 
> So, the mechanism for mapping DNSSD info to a GRASP objective works.
> 
> The question that came to me was whether the proposed family of
> SRV.<service-name> objectives was too general or not general enough.
> 
> Too general, because it claims to be applicable to, well, anything.
> 
> Not general enough, because for draft-carpenter-anima-grasp-config,
> it didn't make much sense to define that as SRV.GraspConfig. However,
> I found the CBOR map approach to defining an extensible objective very
> useful. Hence, the code at:
> https://github.com/becarpenter/graspy/blob/master/GRASPconfig.py
> does *not* use the exact draft-eckert-anima-grasp-dnssd mapping,
> but is directly based on it.
> 
> All the same, I think this approach to integrating GRASP-based service
> management with DNSSD and with legacy NOC services is very interesting
> and seems to be something ANIMA should consider carefully.
> 
> Could the authors deal with the various TBDs in both documents?
> 
> Regards
>    Brian Carpenter
> 
> On 05-Mar-22 07:15, Toerless Eckert wrote:
> > Dear ANIMA WG members,
> > 
> > I have refreshed the two drafts to complete a solution for a real standalone ACP:
> > 
> > a) use DNS-SD service compatible service discovery in ANIMA/ACP via GRASP:
> >     https://datatracker.ietf.org/doc/draft-eckert-anima-grasp-dnssd/
> > b) Use service discovery for ANIMA/ACP to autoconfigure its own core services
> >     https://datatracker.ietf.org/doc/draft-eckert-anima-services-dns-autoconfig/
> > 
> > Could I ask you to review and comment these two drafts ?
> > 
> > If the responses are not too averse, I will request a call for adoption.
> > 
> > Thanks
> >      Toerless
> > 
> > Btw: I am happy to swap mutual review cycles, so if you are waiting for more reviews
> > of your very own draft for ANIMA, i'll be happy to reciprocate ;-))
> > 
> > _______________________________________________
> > Anima mailing list
> > Anima@ietf.org
> > https://www.ietf.org/mailman/listinfo/anima
> > 

-- 
---
tte@cs.fau.de


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Date: Thu, 10 Mar 2022 09:52:59 +0100
From: Toerless Eckert <tte@cs.fau.de>
To: Dirk Trossen <dirk.trossen=40huawei.com@dmarc.ietf.org>
Cc: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "rtgwg@ietf.org" <rtgwg@ietf.org>, "routing-discussion@ietf.org" <routing-discussion@ietf.org>, anima@ietf.org
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Subject: [Anima] recursive system dependencies (Was: Re: New Version Notification for draft-trossen-rtgwg-impact-of-dlts-00.txt)
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[adding anima]

One should not be surprised to see a lot of outages to be related to
loss of connectivity and/or control due to non-understood circular dependen=
cies.
This is certainly true for several of the big outages reported, such as
some complex mutual automation control failure in Google a few years back,
and then the typical "routing broke, and we couldn't remotely access the
node we needed to fix... because routing broke". That issue of course
is resolveable by ACP/RFC8994 and lists a documented example of that issue
as investigated by FCC because the network was running 911 services and
was thus subject to regulation. When big OTT networks have outages, you
will of course almost never see a good root cause analysis publically becau=
se
there is no regulation that forces them to. Maybe a bit like how the banking
sector i think also has managed to keep a lot of its security issues under =
wraps.

We do also have in ANIMA participants interested in having those dependency
chains modelled, which would allow to discover loops that could result in b=
lockage,
and to manage service instantiation in the order necessary to resolve depen=
dencies
when they are resolvable. However:

I always look with marvel and dismay at those dependency resolution systems
found in linux distributions to (compile and) install packages. And that so=
unds
so simple that one should expect that it should not result in dependency re=
solution
failures when there are no actual circular ones, but in practice those issu=
es occur
repeatedly, and one has to take really unnecessary brute-force resolution
measures even though in detailled analysis one could see a limited dependen=
cy
resolution chain, which the platform package management system just couldn'=
t figure
out. Admittedly, this is more of a problem with more flexible systems such =
as
gentoo where you can have multiple versions of packages and also differently
parameterized packages(through parameterized compilation). But those are ex=
actly
the minimum complexity requirements i would expect in an actual network ser=
vices
(ever seen a netork service without per-deployment parameters ?).
So i fear that the more we're automating networks with SDN, the more we wil=
l run
in the buildup of system dependencies that can only be resolved automatical=
ly with
 "please reboot the continent wide network... now!".

Or else we could go back building simpler networks. Maybe bottom up like we
used to do instead of orchestrating a random complexity zoo like we do like=
 to do
now in the times of automation...

Cheers
    Toerless

On Thu, Mar 10, 2022 at 06:49:07AM +0000, Dirk Trossen wrote:
> Have you seen anything like this and what do you think are the consequenc=
es?
> [DOT] What the consequences of this may be is difficult to judge IMO. May=
be an SDN-like situation, i.e., still having an IP-based control overlay wh=
ich then manages the remaining IP service plane? Another possible direction=
 to look into is using ANIMA concepts to bootstrap (and maintain) a DLT-lik=
e control overlay. But this is also why we are asking the community for pos=
sible network innovations that may help improve on the efficacy of DLTs. On=
e approach we looked into, as an example but this still needs more work, is=
 'L3-based service routing' as a form of semantic routing (hence the hint t=
o the semantic routing discussions in the draft). Here, we interpret the DL=
T as a service provided across the network. I could see this being provided=
 as a baseline/bootstrap service through which to manage the (service routi=
ng) data that is being enriched over time by other services. But again, we =
were hoping to find more folks in the community who have thought deeper alo=
ng those lines; we are ju
>  st at the start of doing so.
>=20
> Thanks,
> Adrian
>=20
> -----Original Message-----
> From: rtgwg <rtgwg-bounces@ietf.org> On Behalf Of Dirk Trossen
> Sent: 02 March 2022 13:16
> To: Dirk Trossen <dirk.trossen=3D40huawei.com@dmarc.ietf.org>; rtgwg@ietf=
=2Eorg; routing-discussion@ietf.org
> Subject: RE: New Version Notification for draft-trossen-rtgwg-impact-of-d=
lts-00.txt
>=20
> All,
>=20
> We have posted an updated to the draft below at https://datatracker.ietf.=
org/doc/draft-trossen-rtgwg-impact-of-dlts/.=20
>=20
> We now welcome Mike McBride and Xinxin Fan as additional co-authors and h=
ave also added language into the introduction to clarify our initial insigh=
ts being limited to PoW -based DLT systems, which lead to some characterist=
ic communication patterns and associated inefficiencies compared to, say, P=
oS-based systems.=20
>=20
> Please provide any comments you may have on the draft and/or its insights=
, including any interests in contributing in its expansion (e.g., to other =
DLT systems).
>=20
> Best,
>=20
> Dirk
>=20
> -----Original Message-----
> From: routing-discussion [mailto:routing-discussion-bounces@ietf.org] On =
Behalf Of Dirk Trossen
> Sent: 14 February 2022 16:16
> To: rtgwg@ietf.org; routing-discussion@ietf.org
> Subject: FW: New Version Notification for draft-trossen-rtgwg-impact-of-d=
lts-00.txt
>=20
> All,
>=20
> We posted the draft below to continue a piece of work initiated in the In=
dustry IoT Consortium (IIC) on understanding the "Impact of DLTs on provide=
r networks", leading to the whitepaper at https://www.iiconsortium.org/pdf/=
2022-01-10-Impact-of-Distributed-Ledgers-on
> -Provider-Networks.pdf
>=20
> With this draft, we solicit feedback from the wider IETF community on our=
 insights regarding DLTs with the desire to broaden our findings with the e=
xpertise we can find here but also to capture possible network and routing =
innovations that may improve on the impacts we have identified.
>=20
> If you have any comments or would like to contribute to this work, please=
 do let us know, either on the list or directly to the authors.
>=20
> Best,
>=20
> Dirk (on behalf of the authors)
>=20
> -----Original Message-----
> From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org]
> Sent: 14 February 2022 16:10
> To: David Guzman <david.guzman@huawei.com>; Dirk Trossen <dirk.trossen@hu=
awei.com>
> Subject: New Version Notification for
> draft-trossen-rtgwg-impact-of-dlts-00.txt
>=20
>=20
> A new version of I-D, draft-trossen-rtgwg-impact-of-dlts-00.txt
> has been successfully submitted by Dirk Trossen and posted to the IETF
> repository.
>=20
> Name:		draft-trossen-rtgwg-impact-of-dlts
> Revision:	00
> Title:		Impact of DLTs on Provider Networks
> Document date:	2022-02-14
> Group:		Individual Submission
> Pages:		16
> URL:
> https://www.ietf.org/archive/id/draft-trossen-rtgwg-impact-of-dlts-00.txt
> Status:
> https://datatracker.ietf.org/doc/draft-trossen-rtgwg-impact-of-dlts/
> Htmlized:
> https://datatracker.ietf.org/doc/html/draft-trossen-rtgwg-impact-of-dlts
>=20
>=20
> Abstract:
>    This document discusses the impact of distributed ledger technologies
>    being realized over IP-based provider networks.  The focus here lies
>    on the impact that the DLT communication patterns have on efficiency
>    of resource usage in the underlying networks.  We provide initial
>    insights into experimental results to quantify this impact in terms
>    of inefficient and wasted communication, aligned along challenges
>    that the DLT realization over IP networks faces.
>=20
>    This document is intended to outline this impact but also
>    opportunities for network innovations to improve on the identified
>    impact as well as the overall service quality.  While this document
>    does not promote specific solutions that capture those opportunities,
>    it invites the wider community working on DLT and network solutions
>    alike to contribute to the insights in this document to aid future
>    research and development into possible solution concepts and
>    technologies.
>=20
>    The findings presented here have first been reported within the
>    similarly titled whitepaper released by the Industry IoT Consortium
>    [IIC_whitepaper].
>=20
> =20
>=20
>=20
>=20
> The IETF Secretariat
>=20
>=20
> _______________________________________________
> routing-discussion mailing list
> routing-discussion@ietf.org
> https://www.ietf.org/mailman/listinfo/routing-discussion
>=20
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg
>=20
> _______________________________________________
> rtgwg mailing list
> rtgwg@ietf.org
> https://www.ietf.org/mailman/listinfo/rtgwg

--=20
---
tte@cs.fau.de


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To: Toerless Eckert <tte@cs.fau.de>, Dirk Trossen <dirk.trossen=40huawei.com@dmarc.ietf.org>
Cc: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, anima@ietf.org, "routing-discussion@ietf.org" <routing-discussion@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [Anima] recursive system dependencies (Was: Re: New Version Notification for draft-trossen-rtgwg-impact-of-dlts-00.txt)
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From: Jon Crowcroft <Jon.Crowcroft@cl.cam.ac.uk>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
cc: Toerless Eckert <tte@cs.fau.de>, Dirk Trossen <dirk.trossen=40huawei.com@dmarc.ietf.org>, "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "routing-discussion@ietf.org" <routing-discussion@ietf.org>, anima@ietf.org, "rtgwg@ietf.org" <rtgwg@ietf.org>, Jon Crowcroft <Jon.Crowcroft@cl.cam.ac.uk>
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Comments: In-reply-to Brian E Carpenter <brian.e.carpenter@gmail.com> message dated "Fri, 11 Mar 2022 08:40:39 +1300."
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Subject: Re: [Anima] recursive system dependencies (Was: Re: New Version Notification for draft-trossen-rtgwg-impact-of-dlts-00.txt)
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the cambridge distributed system was an integrated programmable architectu=
re where routers
(called ring-ring bridges), nameservers, bootservers, fileservers, were al=
l treated in a
coherent sand consistent fashion - no-one thought there was anything odd a=
bout this - we even
had an internet protocol (the universe data gram protocol) which allowed i=
nterworking with non
cambridge networks (indeed, we connected several universities in the UK wi=
th satellite and
later land lines)...

ref
Needham, Roger Michael; Herbert, Andrew J. (1983). The Cambridge Distribut=
ed Computing System. Addison Wesley.
also coverd in =

https://dl.acm.org/doi/10.1145/6041.6074


i have to admit that one upgrade in the mid 80s, one of my colleagues forg=
ot about
dependencies, and managed to require the nameserver to allow the bootserve=
r to boot - this was
tricky after power outages given the nameserver booted from the bootserver=
(s) - luckily, we
could rollback a version, reboot everything, fix the bug, and roll forward=
 again

(this wasn't as idiotic as it might seem, since the nameserver was also an=
 integral part of
how some (stateful) routing was done...so booting from a bootserver on a r=
emote ring required
a path.....hmmmmi think i wrote a paper about this back then...)

i can't get to exciting by people thinking routers (and switches and NICs,=
 and AI
accelerators) aren't just yet more computers....

however, there are specialisations (and aforementioned dependencies) which=
 may require extreme
optimisations, which render some devices rather inappropriate for some kin=
ds of
computations...

like running a renderfarm on a bunch of P4 programmable boxes might be a b=
it daft...


> On 10-Mar-22 21:52, Toerless Eckert wrote:
> =

>     [adding anima]
> =

>     One should not be surprised to see a lot of outages to be related to
>     loss of connectivity and/or control due to non-understood circular =

> dependencies.
> =

> =

> This problem is as old as distributed computing. I remember the difficul=
ty
> of restarting the CERN computer centre after a power outage back in the
> 1980s, when nobody knew the correct restart sequence and the dependencie=
s
> turned out to be different each time. While having great hope for
> autonomic networking, I don't think we have a magic solution for this.
> See draft-ciavaglia-anima-coordination from 2016, and add in the case of=
 a
> general outage. Probably ANIMA needs to restart work on that topic.
> =

>    Brian
> =

> =

>     This is certainly true for several of the big outages reported, such=
 =

> as
>     some complex mutual automation control failure in Google a few years=
 =

> back,
>     and then the typical "routing broke, and we couldn't remotely access=
 =

> the
>     node we needed to fix... because routing broke". That issue of cours=
e
>     is resolveable by ACP/RFC8994 and lists a documented example of that=
 =

> issue
>     as investigated by FCC because the network was running 911 services =

> and
>     was thus subject to regulation. When big OTT networks have outages, =

> you
>     will of course almost never see a good root cause analysis publicall=
y =

> because
>     there is no regulation that forces them to. Maybe a bit like how the=
 =

> banking
>     sector i think also has managed to keep a lot of its security issues=
 =

> under wraps.
> =

>     We do also have in ANIMA participants interested in having those =

> dependency
>     chains modelled, which would allow to discover loops that could =

> result in blockage,
>     and to manage service instantiation in the order necessary to resolv=
e =

> dependencies
>     when they are resolvable. However:
> =

>     I always look with marvel and dismay at those dependency resolution =

> systems
>     found in linux distributions to (compile and) install packages. And =

> that sounds
>     so simple that one should expect that it should not result in =

> dependency resolution
>     failures when there are no actual circular ones, but in practice =

> those issues occur
>     repeatedly, and one has to take really unnecessary brute-force =

> resolution
>     measures even though in detailled analysis one could see a limited =

> dependency
>     resolution chain, which the platform package management system just =

> couldn't figure
>     out. Admittedly, this is more of a problem with more flexible system=
s =

> such as
>     gentoo where you can have multiple versions of packages and also =

> differently
>     parameterized packages(through parameterized compilation). But those=
 =

> are exactly
>     the minimum complexity requirements i would expect in an actual =

> network services
>     (ever seen a netork service without per-deployment parameters ?).
>     So i fear that the more we're automating networks with SDN, the more=
 =

> we will run
>     in the buildup of system dependencies that can only be resolved =

> automatically with
>       "please reboot the continent wide network... now!".
> =

>     Or else we could go back building simpler networks. Maybe bottom up =

> like we
>     used to do instead of orchestrating a random complexity zoo like we =

> do like to do
>     now in the times of automation...
> =

>     Cheers
>          Toerless
> =

>     On Thu, Mar 10, 2022 at 06:49:07AM +0000, Dirk Trossen wrote:
> =

>         Have you seen anything like this and what do you think are the =

> consequences?
>         [DOT] What the consequences of this may be is difficult to judge=
 =

> IMO. Maybe an SDN-like situation, i.e., still having an IP-based control=
 =

> overlay which then manages the remaining IP service plane? Another =

> possible direction to look into is using ANIMA concepts to bootstrap (an=
d =

> maintain) a DLT-like control overlay. But this is also why we are asking=
 =

> the community for possible network innovations that may help improve on =

> the efficacy of DLTs. One approach we looked into, as an example but thi=
s =

> still needs more work, is 'L3-based service routing' as a form of =

> semantic routing (hence the hint to the semantic routing discussions in =

> the draft). Here, we interpret the DLT as a service provided across the =

> network. I could see this being provided as a baseline/bootstrap service=
 =

> through which to manage the (service routing) data that is being enriche=
d =

> over time by other services. But again, we were hoping to find more folk=
s =

> in the community who have thought deeper along those lines; we are
> =

>       ju
> =

>           st at the start of doing so.
> =

>         Thanks,
>         Adrian
> =

>         -----Original Message-----
>         From: rtgwg <rtgwg-bounces@ietf.org> On Behalf Of Dirk Trossen
>         Sent: 02 March 2022 13:16
>         To: Dirk Trossen <dirk.trossen=3D40huawei.com@dmarc.ietf.org>; =

> rtgwg@ietf.org; routing-discussion@ietf.org
>         Subject: RE: New Version Notification for =

> draft-trossen-rtgwg-impact-of-dlts-00.txt
> =

>         All,
> =

>         We have posted an updated to the draft below at =

> https://datatracker.ietf.org/doc/draft-trossen-rtgwg-impact-of-dlts/.
> =

>         We now welcome Mike McBride and Xinxin Fan as additional =

> co-authors and have also added language into the introduction to clarify=
 =

> our initial insights being limited to PoW -based DLT systems, which lead=
 =

> to some characteristic communication patterns and associated =

> inefficiencies compared to, say, PoS-based systems.
> =

>         Please provide any comments you may have on the draft and/or its=
 =

> insights, including any interests in contributing in its expansion (e.g.=
, =

> to other DLT systems).
> =

>         Best,
> =

>         Dirk
> =

>         -----Original Message-----
>         From: routing-discussion =

> [mailto:routing-discussion-bounces@ietf.org] On Behalf Of Dirk Trossen
>         Sent: 14 February 2022 16:16
>         To: rtgwg@ietf.org; routing-discussion@ietf.org
>         Subject: FW: New Version Notification for =

> draft-trossen-rtgwg-impact-of-dlts-00.txt
> =

>         All,
> =

>         We posted the draft below to continue a piece of work initiated =

> in the Industry IoT Consortium (IIC) on understanding the "Impact of DLT=
s =

> on provider networks", leading to the whitepaper at =

> https://www.iiconsortium.org/pdf/2022-01-10-Impact-of-Distributed-Ledger=
s-on
>         -Provider-Networks.pdf
> =

>         With this draft, we solicit feedback from the wider IETF =

> community on our insights regarding DLTs with the desire to broaden our =

> findings with the expertise we can find here but also to capture possibl=
e =

> network and routing innovations that may improve on the impacts we have =

> identified.
> =

>         If you have any comments or would like to contribute to this =

> work, please do let us know, either on the list or directly to the =

> authors.
> =

>         Best,
> =

>         Dirk (on behalf of the authors)
> =

>         -----Original Message-----
>         From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org]
>         Sent: 14 February 2022 16:10
>         To: David Guzman <david.guzman@huawei.com>; Dirk Trossen =

> <dirk.trossen@huawei.com>
>         Subject: New Version Notification for
>         draft-trossen-rtgwg-impact-of-dlts-00.txt
> =

> =

>         A new version of I-D, draft-trossen-rtgwg-impact-of-dlts-00.txt
>         has been successfully submitted by Dirk Trossen and posted to th=
e =

> IETF
>         repository.
> =

>         Name:           draft-trossen-rtgwg-impact-of-dlts
>         Revision:       00
>         Title:          Impact of DLTs on Provider Networks
>         Document date:  2022-02-14
>         Group:          Individual Submission
>         Pages:          16
>         URL:
>         =

> https://www.ietf.org/archive/id/draft-trossen-rtgwg-impact-of-dlts-00.tx=
t
>         Status:
>         =

> https://datatracker.ietf.org/doc/draft-trossen-rtgwg-impact-of-dlts/
>         Htmlized:
>         =

> https://datatracker.ietf.org/doc/html/draft-trossen-rtgwg-impact-of-dlts
> =

> =

>         Abstract:
>             This document discusses the impact of distributed ledger =

> technologies
>             being realized over IP-based provider networks.  The focus =

> here lies
>             on the impact that the DLT communication patterns have on =

> efficiency
>             of resource usage in the underlying networks.  We provide =

> initial
>             insights into experimental results to quantify this impact i=
n =

> terms
>             of inefficient and wasted communication, aligned along =

> challenges
>             that the DLT realization over IP networks faces.
> =

>             This document is intended to outline this impact but also
>             opportunities for network innovations to improve on the =

> identified
>             impact as well as the overall service quality.  While this =

> document
>             does not promote specific solutions that capture those =

> opportunities,
>             it invites the wider community working on DLT and network =

> solutions
>             alike to contribute to the insights in this document to aid =

> future
>             research and development into possible solution concepts and
>             technologies.
> =

>             The findings presented here have first been reported within =

> the
>             similarly titled whitepaper released by the Industry IoT =

> Consortium
>             [IIC_whitepaper].
> =

> =

> =

> =

>         The IETF Secretariat
> =

> =

>         _______________________________________________
>         routing-discussion mailing list
>         routing-discussion@ietf.org
>         https://www.ietf.org/mailman/listinfo/routing-discussion
> =

>         _______________________________________________
>         rtgwg mailing list
>         rtgwg@ietf.org
>         https://www.ietf.org/mailman/listinfo/rtgwg
> =

>         _______________________________________________
>         rtgwg mailing list
>         rtgwg@ietf.org
>         https://www.ietf.org/mailman/listinfo/rtgwg
> =

> =

> =

> _______________________________________________
> routing-discussion mailing list
> routing-discussion@ietf.org
> https://www.ietf.org/mailman/listinfo/routing-discussion
> =


From nobody Fri Mar 11 11:49:21 2022
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Date: Fri, 11 Mar 2022 20:49:11 +0100
From: Toerless Eckert <tte@cs.fau.de>
To: anima@ietf.org
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Subject: [Anima] ANIMA: preliminary agenda ANIMA@IETF113
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Please see https://notes.ietf.org/notes-ietf-113-anima

We are happily accepting notes takers!

I added slots for all requests i received. If you did send a request but do not see a slot, please contact us cahirs.
(also if you see any other bugs)

Please upload/propose slides when you have written them.

Please familiarize yourself with all the new hybrid IETF113 procedures. URL is at the top of te agenda.
Thats about the best thing about being that late on friday: We'll all have worked out how that hybrid thing will work by then ;-)

Cheers
    Toerless (for the chairs)


From nobody Tue Mar 15 18:09:40 2022
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To: Anima WG <anima@ietf.org>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Message-ID: <dcfce201-ff8b-42ba-17e5-39fa825a4ea7@gmail.com>
Date: Wed, 16 Mar 2022 14:09:27 +1300
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Archived-At: <https://mailarchive.ietf.org/arch/msg/anima/EKeMDhgFhaWbtCcjopjWzHuOpLI>
Subject: [Anima] Fixed on-the-wire bug in Python GRASP
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FYI if you are using or studying my grasp.py code.

I just pushed a new version to GitHub which fixes a serious issue with discovery responses using the Divert option (O_DIVERT). Previously the code did not conform to RFC8990 on the wire, and now it does, so this fix is essential and anyone using the code should replace all copies of grasp.py with today's version, "RFC8990-BC-20220316", at:
https://github.com/becarpenter/graspy/blob/master/grasp.py

The details of the bug are complicated enough to get their own document:
https://github.com/becarpenter/graspy/blob/master/divertBug.md

Thanks to Parsa Ghaderi (Concordia University) for reporting this problem.

Regards
    Brian


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Subject: [Anima] AD review for draft-ietf-anima-constrained-join-proxy-06
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Hi,

This is my AD review for draft-ietf-anima-constrained-join-proxy-06.

Thanks for this document.  I found it pleasant to read and only had minor c=
omments.

1.=20
   Abstract:

   This intermediary node is known as a
   "constrained Join Proxy".  An enrolled Pledge can act as a Join
   Proxy.

Is a constrained Join Proxy and Join Proxy the same thing, or is one a subt=
ype of the other?  I.e., would it be clearer to say that an enrolled Pledge=
 can act as a constrained Join Proxy?


2. Sec 2.
   The term
   "installation IP_address" refers to the set of addresses which are
   routable over the whole installation network.
  =20
Is it referring to the set of addresses, or just one out of the set of addr=
esses?


3.  Sec 4.
    in an LLN mesh can be
=20
LLN doesn't seem to be defined anywhere.

4.  Sec 5.1, figure 2.

   IP_P:p_P =3D Link-local IP address and port of Pledge (DTLS Client)
   IP_R:5684 =3D Routable IP address and coaps port of Registrar
   IP_Ja:P_J =3D Link-local IP address and join-port of Join Proxy
   IP_Jb:p_Rb =3D Routable IP address and client port of Join Proxy

Really just a nit, but I assume that this is a naming scheme here, but I di=
dn't find it that intuitive, specifically for differentiating between a lin=
k-local and routable IP address for the Join Proxy.  E.g., I was wondering =
if IP_Jl: and IP_Jr might be clearer., but I'll leave this entirely to the =
authors discretion.

5. Sec 5.3.

  The
   Registrar replaces the 5th "content" element with the DTLS payload of
   the response message and leaves all other array elements unchanged.
  =20
Possibly you could be more explicit that the message is sent back?


6. Sec 5.3

   When additions are added to the array in later versions of this
   protocol, any additional array elements (i.e., not specified by
   current document) MUST be ignored by a receiver if it doesn't know
   these elements.  This approach allows evolution of the protocol while
   maintaining backwards-compatibility.  A version number isn't needed;
   that number is defined by the length of the array.
  =20
 So, presumably new elements can be added, but never removed again afterwar=
ds?
=20
=20
 7. Sec 6.
=20
   | Ports       | Join Proxy needs           |Join Proxy and Registrar|
   |             | discoverable join-port     |need discoverable       |
   |             |                            | join-ports             |
   +-------------+----------------------------+------------------------+

At the point that I read this, I didn't understand why discoverable ports a=
re needed for both the Join Proxy and Registrar for the stateless mode.  I =
think that led me to the separate question as to whether it wouldn't make m=
ore sense to have the section on Discovery before the comparison section.

8. Sec 7.
  =20

   Three discovery cases are discussed: Join Proxy discovers Registrar,
   Pledge discovers Registrar, and Pledge discovers Join Proxy.  Each
   discovery case considers three alternatives: CoAP discovery, GRASP
   discovery, and 6tisch discovery.

When reading this, it wasn't entirely clear to me under what circumstances =
the different discovery mechanisms would be used.  Is it also possible that=
 for some networks multiple discovery mechanisms may be available, or would=
 it always be the case that only one would be deployed?

Finally, given the way that the options fall out, I did wonder if the docum=
ent might be more readable if the 2-dimensional array of options was descri=
bed the other way.  I.e., grouped primarily by whether CoAP or GRASP or 6ti=
sch discovery is being used?

9. Sec 8.

   Another possibility is to use level 2 protection between Registrar
   and Join Proxy.
  =20
I don't understand what is meant by this.


---

Minor spelling and grammar warnings from an automated tool.

Spellings:
    aplication,
    neighbour,
    neighbouring,

Obviously neighbour isn't a spelling mistake, but flagging in case the inte=
nt is to be using American English :-)

Grammar Warnings:
Section: 7.1.2, draft text:
Autonomic Network Join Proxies MUST support GRASP discovery of Registrar as=
 described in section 4.3 of [RFC8995] .
Warning:  Don't put a space before the full stop.
Suggested change:  "."

Section: 7.2.1, draft text:
The discovery of the coaps Registrar, using coap discovery, by the Pledge f=
ollows sections 6.3 and 6.5.1 of [I-D.ietf-anima-constrained-voucher]..
Warning:  Two consecutive dots
Suggested change:  "."

Section: 7.3.1, draft text:
Port numbers are assumed to be the default numbers 5683 and 5684 for coap a=
nd coaps respectively (sections 12.6 and 12.7 of [RFC7252] when not shown i=
n the response.=20
Warning:  Unpaired symbol: ')' seems to be missing

Section: 8, draft text:
All of the concerns in [RFC8995] section 4.1 apply.=20
Warning:  Consider using all the.
Suggested change:  "All the"

Regards,
Rob


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On 2022-03-18, at 15:44, Rob Wilton (rwilton) =
<rwilton=3D40cisco.com@dmarc.ietf.org> wrote:
>=20
> 3.  Sec 4.
>    in an LLN mesh can be
>=20
> LLN doesn't seem to be defined anywhere.

It is =E2=80=9Cdefined=E2=80=9D in RFC 7102.

(I would not use this term.
It has the definitional sharpness of Labskaus.)

The term =E2=80=9CLLN mesh=E2=80=9D is definitely not defined.
The authors of RFCs 8505 8931 9030 9032 seem to like using it, anyway.

Gr=C3=BC=C3=9Fe, Carsten


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--=_85a146323c7b8db02d69817e36d13311
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 format=flowed

  Hi Rob,

thanks for the review and the encouragements.
Below my reactions on your points.

When you agree with the proposed changes, and nobody else complains, I 
will submit the new I-D at the end of this week.

Greetings,

Peter

Rob Wilton (rwilton) schreef op 2022-03-18 15:44:

> Hi,
> 
> This is my AD review for draft-ietf-anima-constrained-join-proxy-06.
> 
> Thanks for this document.  I found it pleasant to read and only had 
> minor comments.
> 
> 1.
> Abstract:
> 
> This intermediary node is known as a
> "constrained Join Proxy".  An enrolled Pledge can act as a Join
> Proxy.
> 
> Is a constrained Join Proxy and Join Proxy the same thing, or is one a 
> subtype of the other?  I.e., would it be clearer to say that an 
> enrolled Pledge can act as a constrained Join Proxy?
> 
> pvds =>
> Agree with your suggestion. Terminology reduction is always good.
> ==>
> 
> 2. Sec 2.
> The term
> "installation IP_address" refers to the set of addresses which are
> routable over the whole installation network.
> 
> Is it referring to the set of addresses, or just one out of the set of 
> addresses?
> 
> NEW ==>
> The term "installation IP_address" refers to an address out of the set 
> of addresses which are routable over the whole installation network.
> ==>
> 
> 3.  Sec 4.
> in an LLN mesh can be
> 
> LLN doesn't seem to be defined anywhere.
> 
> NEW==>
> the Pledge (P), in a Low-Power and Lossy Network (LLN) mesh
> {{RFC7102}} can be more than one hop away from the Registrar (R)
> ==>
> 
> Ignoring Carsten's remark about being badly defined.
> 
> 4.  Sec 5.1, figure 2.
> 
> IP_P:p_P = Link-local IP address and port of Pledge (DTLS Client)
> IP_R:5684 = Routable IP address and coaps port of Registrar
> IP_Ja:P_J = Link-local IP address and join-port of Join Proxy
> IP_Jb:p_Rb = Routable IP address and client port of Join Proxy
> 
> Really just a nit, but I assume that this is a naming scheme here, but 
> I didn't find it that intuitive, specifically for differentiating 
> between a link-local and routable IP address for the Join Proxy.  E.g., 
> I was wondering if IP_Jl: and IP_Jr might be clearer., but I'll leave 
> this entirely to the authors discretion.
> 
> pvds==>
> Thanks, is clearer; changed as suggested in both figures
> ==>
> 
> 5. Sec 5.3.
> 
> The
> Registrar replaces the 5th "content" element with the DTLS payload of
> the response message and leaves all other array elements unchanged.
> 
> Possibly you could be more explicit that the message is sent back?
> 
> NEW==>
> After replacing the 5th "content" element with the DTLS payload of the 
> response message and leaving all other array elements unchanged, the 
> Registrar returns the response message.
> ==>
> 
> 6. Sec 5.3
> 
> When additions are added to the array in later versions of this
> protocol, any additional array elements (i.e., not specified by
> current document) MUST be ignored by a receiver if it doesn't know
> these elements.  This approach allows evolution of the protocol while
> maintaining backwards-compatibility.  A version number isn't needed;
> that number is defined by the length of the array.
> 
> So, presumably new elements can be added, but never removed again 
> afterwards?
> 
> pvds==>
> Yes, I addedd:
> NEW==>
> However, this means that message elements are consistently added to 
> earlier defined elements to avoid ambiguities.
> ==>
> ==>
> 
> 7. Sec 6.
> 
> | Ports       | Join Proxy needs           |Join Proxy and Registrar|
> |             | discoverable join-port     |need discoverable       |
> |             |                            | join-ports             |
> +-------------+----------------------------+------------------------+
> 
> At the point that I read this, I didn't understand why discoverable 
> ports are needed for both the Join Proxy and Registrar for the 
> stateless mode.  I think that led me to the separate question as to 
> whether it wouldn't make more sense to have the section on Discovery 
> before the comparison section.
> 
> pvds==>
> I see your point and put discovery section before comparison section
> ==>
> 
> 8. Sec 7.
> 
> Three discovery cases are discussed: Join Proxy discovers Registrar,
> Pledge discovers Registrar, and Pledge discovers Join Proxy.  Each
> discovery case considers three alternatives: CoAP discovery, GRASP
> discovery, and 6tisch discovery.
> 
> When reading this, it wasn't entirely clear to me under what 
> circumstances the different discovery mechanisms would be used.  Is it 
> also possible that for some networks multiple discovery mechanisms may 
> be available, or would it always be the case that only one would be 
> deployed?
> 
> NEW==>
> Three discovery cases are discussed: Join Proxy discovers Registrar, 
> Pledge discovers Registrar, and Pledge discovers Join Proxy. Each 
> discovery case considers three alternatives: CoAP discovery, GRASP 
> discovery, and 6tisch discovery. It depends on the type of installation 
> which discovery mechanisms are offered. It can be imagined that 
> manufacturers provide the pledge/join-proxy with more than one 
> discovery mechanism. The pledge/join-proxy can try one after the other 
> mechanism untill success is reached. Alternatively, at installation a 
> switch is set to determine the discovery mechanism.
> ==>
> 
> Finally, given the way that the options fall out, I did wonder if the 
> document might be more readable if the 2-dimensional array of options 
> was described the other way.  I.e., grouped primarily by whether CoAP 
> or GRASP or 6tisch discovery is being used?
> 
> pvds==>
> This section has seen several structures, where this last structure 
> seemed to give the best results to generate readable text
> ==>
> 
> 9. Sec 8.
> 
> Another possibility is to use level 2 protection between Registrar
> and Join Proxy.
> 
> I don't understand what is meant by this.
> 
> NEW==>
> In some installations, level 2 protection is provided between all 
> member pairs of the mesh. In such an enviroment encryption of the CBOR 
> array is unnecessay because the level 2 protection already provides it.
> ==>
> 
> ---
> 
> Minor spelling and grammar warnings from an automated tool.
> 
> Spellings:
> aplication,
> neighbour,
> neighbouring,
> 
> Obviously neighbour isn't a spelling mistake, but flagging in case the 
> intent is to be using American English :-)
> 
> pvds==>
> changed to american spelling convention
> ==>
> 
> Grammar Warnings:
> Section: 7.1.2, draft text:
> Autonomic Network Join Proxies MUST support GRASP discovery of 
> Registrar as described in section 4.3 of [RFC8995] .
> Warning:  Don't put a space before the full stop.
> Suggested change:  "."
> 
> pvds==>
> thanks, done
> ==>
> 
> Section: 7.2.1, draft text:
> The discovery of the coaps Registrar, using coap discovery, by the 
> Pledge follows sections 6.3 and 6.5.1 of 
> [I-D.ietf-anima-constrained-voucher]..
> Warning:  Two consecutive dots
> Suggested change:  "."
> 
> pvds==>
> done
> ==>
> 
> Section: 7.3.1, draft text:
> Port numbers are assumed to be the default numbers 5683 and 5684 for 
> coap and coaps respectively (sections 12.6 and 12.7 of [RFC7252] when 
> not shown in the response.
> Warning:  Unpaired symbol: ')' seems to be missing
> 
> pvds==>
> corrected
> ==>
> 
> Section: 8, draft text:
> All of the concerns in [RFC8995] section 4.1 apply.
> Warning:  Consider using all the.
> Suggested change:  "All the"
> pvds==>
> also removed
> ==>
> 
> Regards,
> Rob
> 
> _______________________________________________
> Anima mailing list
> Anima@ietf.org
> https://www.ietf.org/mailman/listinfo/anima
--=_85a146323c7b8db02d69817e36d13311
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset=UTF-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset=
=3DUTF-8" /></head><body style=3D'font-size: 10pt; font-family: Verdana,Gen=
eva,sans-serif'>
Hi Rob, <br /><br />thanks for the review and the encouragements.<br />Belo=
w my reactions on your points.<br /><br />When you agree with the proposed =
changes, and nobody else complains, I will submit the new I-D at the end of=
 this week.<br /><br />Greetings,<br /><br />Peter<br /><br /><br />
<p id=3D"v1reply-intro">Rob Wilton (rwilton) schreef op 2022-03-18 15:44:</=
p>
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0">
<div class=3D"v1pre">Hi,<br /><br />This is my AD review for draft-ietf-ani=
ma-constrained-join-proxy-06.<br /><br />Thanks for this document. &nbsp;I =
found it pleasant to read and only had minor comments.<br /><br />1. <br />=
&nbsp;&nbsp;&nbsp;Abstract:<br /><br />&nbsp;&nbsp;&nbsp;This intermediary =
node is known as a<br />&nbsp;&nbsp;&nbsp;"constrained Join Proxy". &nbsp;A=
n enrolled Pledge can act as a Join<br />&nbsp;&nbsp;&nbsp;Proxy.<br /><br =
/>Is a constrained Join Proxy and Join Proxy the same thing, or is one a su=
btype of the other? &nbsp;I.e., would it be clearer to say that an enrolled=
 Pledge can act as a constrained Join Proxy?<br /><br />pvds =3D&gt;<br />A=
gree with your suggestion. Terminology reduction is always good.<br />=3D=
=3D&gt;<br /><br /><br />2. Sec 2.<br />&nbsp;&nbsp;&nbsp;The term<br />&nb=
sp;&nbsp;&nbsp;"installation IP_address" refers to the set of addresses whi=
ch are<br />&nbsp;&nbsp;&nbsp;routable over the whole installation network.=
<br />&nbsp;&nbsp;&nbsp;<br />Is it referring to the set of addresses, or j=
ust one out of the set of addresses?<br /><br />NEW =3D=3D&gt;<br />The ter=
m "installation IP_address" refers to an address out of the set of addresse=
s which are routable over the whole installation network.<br />=3D=3D&gt;<b=
r /><br /><br />3. &nbsp;Sec 4.<br />&nbsp;&nbsp;&nbsp;&nbsp;in an LLN mesh=
 can be<br />&nbsp;<br />LLN doesn't seem to be defined anywhere.<br /><br =
/>NEW=3D=3D&gt;<br />the Pledge (P), in a Low-Power and Lossy Network (LLN)=
 mesh<br />&nbsp;{{RFC7102}} can be more than one hop away from the Registr=
ar (R)<br />=3D=3D&gt;<br /><br />Ignoring Carsten's remark about being bad=
ly defined.<br /><br />4. &nbsp;Sec 5.1, figure 2.<br /><br />&nbsp;&nbsp;&=
nbsp;IP_P:p_P =3D Link-local IP address and port of Pledge (DTLS Client)<br=
 />&nbsp;&nbsp;&nbsp;IP_R:5684 =3D Routable IP address and coaps port of Re=
gistrar<br />&nbsp;&nbsp;&nbsp;IP_Ja:P_J =3D Link-local IP address and join=
-port of Join Proxy<br />&nbsp;&nbsp;&nbsp;IP_Jb:p_Rb =3D Routable IP addre=
ss and client port of Join Proxy<br /><br />Really just a nit, but I assume=
 that this is a naming scheme here, but I didn't find it that intuitive, sp=
ecifically for differentiating between a link-local and routable IP address=
 for the Join Proxy. &nbsp;E.g., I was wondering if IP_Jl: and IP_Jr might =
be clearer., but I'll leave this entirely to the authors discretion.<br /><=
br />pvds=3D=3D&gt;<br />Thanks, is clearer; changed as suggested in both f=
igures<br />=3D=3D&gt;<br /><br />5. Sec 5.3.<br /><br />&nbsp;&nbsp;The<br=
 />&nbsp;&nbsp;&nbsp;Registrar replaces the 5th "content" element with the =
DTLS payload of<br />&nbsp;&nbsp;&nbsp;the response message and leaves all =
other array elements unchanged.<br />&nbsp;&nbsp;&nbsp;<br />Possibly you c=
ould be more explicit that the message is sent back?<br /><br />NEW=3D=3D&g=
t;<br />After replacing the 5th "content" element with the DTLS payload of =
the response message and leaving all other array elements unchanged, the Re=
gistrar returns the response message.<br />=3D=3D&gt;<br /><br /><br />6. S=
ec 5.3<br /><br />&nbsp;&nbsp;&nbsp;When additions are added to the array i=
n later versions of this<br />&nbsp;&nbsp;&nbsp;protocol, any additional ar=
ray elements (i.e., not specified by<br />&nbsp;&nbsp;&nbsp;current documen=
t) MUST be ignored by a receiver if it doesn't know<br />&nbsp;&nbsp;&nbsp;=
these elements. &nbsp;This approach allows evolution of the protocol while<=
br />&nbsp;&nbsp;&nbsp;maintaining backwards-compatibility. &nbsp;A version=
 number isn't needed;<br />&nbsp;&nbsp;&nbsp;that number is defined by the =
length of the array.<br />&nbsp;&nbsp;&nbsp;<br />&nbsp;So, presumably new =
elements can be added, but never removed again afterwards?<br /><br />pvds=
=3D=3D&gt;<br />Yes, I addedd:<br />NEW=3D=3D&gt;<br />&nbsp;However, this =
means that message elements are consistently added to earlier defined eleme=
nts to avoid ambiguities.<br />=3D=3D&gt;<br />=3D=3D&gt;<br />&nbsp;<br />=
&nbsp;7. Sec 6.<br />&nbsp;<br />&nbsp;&nbsp;&nbsp;| Ports &nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;| Join Proxy needs &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;|Join Proxy and Registrar|<br />&nbsp;&nbsp;&nbsp;|=
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| =
discoverable join-port &nbsp;&nbsp;&nbsp;&nbsp;|need discoverable &nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;|<br />&nbsp;&nbsp;&nbsp;| &nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| &nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| join-por=
ts &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
|<br />&nbsp;&nbsp;&nbsp;+-------------+----------------------------+------=
------------------+<br /><br />At the point that I read this, I didn't unde=
rstand why discoverable ports are needed for both the Join Proxy and Regist=
rar for the stateless mode. &nbsp;I think that led me to the separate quest=
ion as to whether it wouldn't make more sense to have the section on Discov=
ery before the comparison section.<br /><br />pvds=3D=3D&gt;<br />I see you=
r point and put discovery section before comparison section<br />=3D=3D&gt;=
<br /><br />8. Sec 7.<br />&nbsp;&nbsp;&nbsp;<br /><br />&nbsp;&nbsp;&nbsp;=
Three discovery cases are discussed: Join Proxy discovers Registrar,<br />&=
nbsp;&nbsp;&nbsp;Pledge discovers Registrar, and Pledge discovers Join Prox=
y. &nbsp;Each<br />&nbsp;&nbsp;&nbsp;discovery case considers three alterna=
tives: CoAP discovery, GRASP<br />&nbsp;&nbsp;&nbsp;discovery, and 6tisch d=
iscovery.<br /><br />When reading this, it wasn't entirely clear to me unde=
r what circumstances the different discovery mechanisms would be used. &nbs=
p;Is it also possible that for some networks multiple discovery mechanisms =
may be available, or would it always be the case that only one would be dep=
loyed?<br /><br />NEW=3D=3D&gt;<br />Three discovery cases are discussed: J=
oin Proxy discovers Registrar, Pledge discovers Registrar, and Pledge disco=
vers Join Proxy. Each discovery case considers three alternatives: CoAP dis=
covery, GRASP discovery, and 6tisch discovery. It depends on the type of in=
stallation which discovery mechanisms are offered. It can be imagined that =
manufacturers provide the pledge/join-proxy with more than one discovery me=
chanism. The pledge/join-proxy can try one after the other mechanism untill=
 success is reached. Alternatively, at installation a switch is set to dete=
rmine the discovery mechanism.<br />=3D=3D&gt;<br /><br />Finally, given th=
e way that the options fall out, I did wonder if the document might be more=
 readable if the 2-dimensional array of options was described the other way=
=2E &nbsp;I.e., grouped primarily by whether CoAP or GRASP or 6tisch discov=
ery is being used?<br /><br />pvds=3D=3D&gt;<br />This section has seen sev=
eral structures, where this last structure seemed to give the best results =
to generate readable text<br />=3D=3D&gt;<br /><br />9. Sec 8.<br /><br />&=
nbsp;&nbsp;&nbsp;Another possibility is to use level 2 protection between R=
egistrar<br />&nbsp;&nbsp;&nbsp;and Join Proxy.<br />&nbsp;&nbsp;&nbsp;<br =
/>I don't understand what is meant by this.<br /><br />NEW=3D=3D&gt;<br />I=
n some installations, level 2 protection is provided between all member pai=
rs of the mesh. In such an enviroment encryption of the CBOR array is unnec=
essay because the level 2 protection already provides it.<br />=3D=3D&gt;<b=
r /><br /><br />---<br /><br />Minor spelling and grammar warnings from an =
automated tool.<br /><br />Spellings:<br />&nbsp;&nbsp;&nbsp;&nbsp;aplicati=
on,<br />&nbsp;&nbsp;&nbsp;&nbsp;neighbour,<br />&nbsp;&nbsp;&nbsp;&nbsp;ne=
ighbouring,<br /><br />Obviously neighbour isn't a spelling mistake, but fl=
agging in case the intent is to be using American English :-)<br /><br />pv=
ds=3D=3D&gt;<br />changed to american spelling convention<br />=3D=3D&gt;<b=
r /><br />Grammar Warnings:<br />Section: 7.1.2, draft text:<br />Autonomic=
 Network Join Proxies MUST support GRASP discovery of Registrar as describe=
d in section 4.3 of [RFC8995] .<br />Warning: &nbsp;Don't put a space befor=
e the full stop.<br />Suggested change: &nbsp;"."<br /><br />pvds=3D=3D&gt;=
<br />thanks, done<br />=3D=3D&gt;<br /><br />Section: 7.2.1, draft text:<b=
r />The discovery of the coaps Registrar, using coap discovery, by the Pled=
ge follows sections 6.3 and 6.5.1 of [I-D.ietf-anima-constrained-voucher]..=
<br />Warning: &nbsp;Two consecutive dots<br />Suggested change: &nbsp;"."<=
br /><br />pvds=3D=3D&gt;<br />done<br />=3D=3D&gt;<br /><br />Section: 7.3=
=2E1, draft text:<br />Port numbers are assumed to be the default numbers 5=
683 and 5684 for coap and coaps respectively (sections 12.6 and 12.7 of [RF=
C7252] when not shown in the response. <br />Warning: &nbsp;Unpaired symbol=
: ')' seems to be missing<br /><br />pvds=3D=3D&gt;<br />corrected<br />=3D=
=3D&gt;<br /><br />Section: 8, draft text:<br />All of the concerns in [RFC=
8995] section 4.1 apply. <br />Warning: &nbsp;Consider using all the.<br />=
Suggested change: &nbsp;"All the"<br />pvds=3D=3D&gt;<br />also removed<br =
/>=3D=3D&gt;<br /><br />Regards,<br />Rob<br /><br />______________________=
_________________________<br />Anima mailing list<br /><a href=3D"mailto:An=
ima@ietf.org" rel=3D"noreferrer">Anima@ietf.org</a><br /><a href=3D"https:/=
/www.ietf.org/mailman/listinfo/anima" target=3D"_blank" rel=3D"noopener nor=
eferrer">https://www.ietf.org/mailman/listinfo/anima</a></div>
</blockquote>
</body></html>

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To: "stokcons@bbhmail.nl" <stokcons@bbhmail.nl>
CC: "draft-ietf-anima-constrained-join-proxy.all@ietf.org" <draft-ietf-anima-constrained-join-proxy.all@ietf.org>, "anima@ietf.org" <anima@ietf.org>, "Rob Wilton (rwilton)" <rwilton=40cisco.com@dmarc.ietf.org>
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Subject: [Anima] I-D Action: draft-ietf-anima-constrained-join-proxy-07.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Autonomic Networking Integrated Model and Approach WG of the IETF.

        Title           : Constrained Join Proxy for Bootstrapping Protocols
        Authors         : Michael Richardson
                          Peter van der Stok
                          Panos Kampanakis
	Filename        : draft-ietf-anima-constrained-join-proxy-07.txt
	Pages           : 21
	Date            : 2022-03-25

Abstract:
   This document defines a protocol to securely assign a Pledge to a
   domain, represented by a Registrar, using an intermediary node
   between Pledge and Registrar.  This intermediary node is known as a
   "constrained Join Proxy".  An enrolled Pledge can act as a
   constrained Join Proxy.

   This document extends the work of Bootstrapping Remote Secure Key
   Infrastructures (BRSKI) by replacing the Circuit-proxy between Pledge
   and Registrar by a stateless/stateful constrained Join Proxy.  It
   relays join traffic from the Pledge to the Registrar.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-anima-constrained-join-proxy/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-anima-constrained-join-proxy-07

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-constrained-join-proxy-07


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts



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--=_3c380f74a0e2a7b20edaf3c05b4c9226
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 format=flowed

  Hi WG,

A new version of constrained-join-proxy is submitted that includes the 
results of the AD review by Rob Wilton.

Greetings,

Peter
internet-drafts@ietf.org schreef op 2022-03-25 08:49:

> A New Internet-Draft is available from the on-line Internet-Drafts 
> directories.
> This draft is a work item of the Autonomic Networking Integrated Model 
> and Approach WG of the IETF.
> 
> Title           : Constrained Join Proxy for Bootstrapping Protocols
> Authors         : Michael Richardson
> Peter van der Stok
> Panos Kampanakis
> Filename        : draft-ietf-anima-constrained-join-proxy-07.txt
> Pages           : 21
> Date            : 2022-03-25
> 
> Abstract:
> This document defines a protocol to securely assign a Pledge to a
> domain, represented by a Registrar, using an intermediary node
> between Pledge and Registrar.  This intermediary node is known as a
> "constrained Join Proxy".  An enrolled Pledge can act as a
> constrained Join Proxy.
> 
> This document extends the work of Bootstrapping Remote Secure Key
> Infrastructures (BRSKI) by replacing the Circuit-proxy between Pledge
> and Registrar by a stateless/stateful constrained Join Proxy.  It
> relays join traffic from the Pledge to the Registrar.
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-anima-constrained-join-proxy/
> 
> There is also an htmlized version available at:
> https://datatracker.ietf.org/doc/html/draft-ietf-anima-constrained-join-proxy-07
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-constrained-join-proxy-07
> 
> Internet-Drafts are also available by rsync at 
> rsync.ietf.org::internet-drafts
> 
> _______________________________________________
> Anima mailing list
> Anima@ietf.org
> https://www.ietf.org/mailman/listinfo/anima
--=_3c380f74a0e2a7b20edaf3c05b4c9226
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset=UTF-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset=
=3DUTF-8" /></head><body style=3D'font-size: 10pt; font-family: Verdana,Gen=
eva,sans-serif'>
Hi WG,<br /><br />A new version of constrained-join-proxy is submitted that=
 includes the results of the AD review by Rob Wilton.<br /><br />Greetings,=
<br /><br />Peter<br />
<p id=3D"reply-intro">internet-drafts@ietf.org schreef op 2022-03-25 08:49:=
</p>
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0">
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
<br />A New Internet-Draft is available from the on-line Internet-Drafts di=
rectories.<br />This draft is a work item of the Autonomic Networking Integ=
rated Model and Approach WG of the IETF.<br /><br />&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;Title &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;: Constrained Join Proxy for Bootstrapping Protocols<br />&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Authors &nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;: Michael Richardson<br />&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Peter van der S=
tok<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;Panos Kampanakis<br />&nbsp;&nbsp;&nbsp;&nbsp;Filename &nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: draft-ietf-anima-constrained-join-pr=
oxy-07.txt<br />&nbsp;&nbsp;&nbsp;&nbsp;Pages &nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: 21<br />&nbsp;&nbsp;&nbsp;&nbsp;Date &nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: 2022-03-25<b=
r /><br />Abstract:<br />&nbsp;&nbsp;&nbsp;This document defines a protocol=
 to securely assign a Pledge to a<br />&nbsp;&nbsp;&nbsp;domain, represente=
d by a Registrar, using an intermediary node<br />&nbsp;&nbsp;&nbsp;between=
 Pledge and Registrar. &nbsp;This intermediary node is known as a<br />&nbs=
p;&nbsp;&nbsp;"constrained Join Proxy". &nbsp;An enrolled Pledge can act as=
 a<br />&nbsp;&nbsp;&nbsp;constrained Join Proxy.<br /><br />&nbsp;&nbsp;&n=
bsp;This document extends the work of Bootstrapping Remote Secure Key<br />=
&nbsp;&nbsp;&nbsp;Infrastructures (BRSKI) by replacing the Circuit-proxy be=
tween Pledge<br />&nbsp;&nbsp;&nbsp;and Registrar by a stateless/stateful c=
onstrained Join Proxy. &nbsp;It<br />&nbsp;&nbsp;&nbsp;relays join traffic =
from the Pledge to the Registrar.<br /><br /><br />The IETF datatracker sta=
tus page for this draft is:<br /><a href=3D"https://datatracker.ietf.org/do=
c/draft-ietf-anima-constrained-join-proxy/" target=3D"_blank" rel=3D"noopen=
er noreferrer">https://datatracker.ietf.org/doc/draft-ietf-anima-constraine=
d-join-proxy/</a><br /><br />There is also an htmlized version available at=
:<br /><a href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-anima-co=
nstrained-join-proxy-07" target=3D"_blank" rel=3D"noopener noreferrer">http=
s://datatracker.ietf.org/doc/html/draft-ietf-anima-constrained-join-proxy-0=
7</a><br /><br />A diff from the previous version is available at:<br /><a =
href=3D"https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-anima-constrained-jo=
in-proxy-07" target=3D"_blank" rel=3D"noopener noreferrer">https://www.ietf=
=2Eorg/rfcdiff?url2=3Ddraft-ietf-anima-constrained-join-proxy-07</a><br /><=
br /><br />Internet-Drafts are also available by rsync at rsync.ietf.org::i=
nternet-drafts<br /><br /><br />___________________________________________=
____<br />Anima mailing list<br /><a href=3D"mailto:Anima@ietf.org">Anima@i=
etf.org</a><br /><a href=3D"https://www.ietf.org/mailman/listinfo/anima" ta=
rget=3D"_blank" rel=3D"noopener noreferrer">https://www.ietf.org/mailman/li=
stinfo/anima</a></div>
</blockquote>
</body></html>

--=_3c380f74a0e2a7b20edaf3c05b4c9226--


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From: "Rob Wilton (rwilton)" <rwilton@cisco.com>
To: "stokcons@bbhmail.nl" <stokcons@bbhmail.nl>, "anima@ietf.org" <anima@ietf.org>
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From nobody Fri Mar 25 03:33:28 2022
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Subject: [Anima] I-D Action: draft-ietf-anima-constrained-join-proxy-08.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Autonomic Networking Integrated Model and Approach WG of the IETF.

        Title           : Constrained Join Proxy for Bootstrapping Protocols
        Authors         : Michael Richardson
                          Peter van der Stok
                          Panos Kampanakis
	Filename        : draft-ietf-anima-constrained-join-proxy-08.txt
	Pages           : 21
	Date            : 2022-03-25

Abstract:
   This document defines a protocol to securely assign a Pledge to a
   domain, represented by a Registrar, using an intermediary node
   between Pledge and Registrar.  This intermediary node is known as a
   "constrained Join Proxy".  An enrolled Pledge can act as a
   constrained Join Proxy.

   This document extends the work of Bootstrapping Remote Secure Key
   Infrastructures (BRSKI) by replacing the Circuit-proxy between Pledge
   and Registrar by a stateless/stateful constrained Join Proxy.  It
   relays join traffic from the Pledge to the Registrar.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-anima-constrained-join-proxy/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-anima-constrained-join-proxy-08

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-constrained-join-proxy-08


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts



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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Autonomic Networking Integrated Model and Approach WG of the IETF.

        Title           : Constrained Join Proxy for Bootstrapping Protocols
        Authors         : Michael Richardson
                          Peter van der Stok
                          Panos Kampanakis
	Filename        : draft-ietf-anima-constrained-join-proxy-09.txt
	Pages           : 21
	Date            : 2022-03-25

Abstract:
   This document defines a protocol to securely assign a Pledge to a
   domain, represented by a Registrar, using an intermediary node
   between Pledge and Registrar.  This intermediary node is known as a
   "constrained Join Proxy".  An enrolled Pledge can act as a
   constrained Join Proxy.

   This document extends the work of Bootstrapping Remote Secure Key
   Infrastructures (BRSKI) by replacing the Circuit-proxy between Pledge
   and Registrar by a stateless/stateful constrained Join Proxy.  It
   relays join traffic from the Pledge to the Registrar.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-anima-constrained-join-proxy/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-anima-constrained-join-proxy-09

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-anima-constrained-join-proxy-09


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts



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Subject: [Anima] Last Call: <draft-ietf-anima-constrained-join-proxy-09.txt> (Constrained Join Proxy for Bootstrapping Protocols) to Proposed Standard
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The IESG has received a request from the Autonomic Networking Integrated
Model and Approach WG (anima) to consider the following document: -
'Constrained Join Proxy for Bootstrapping Protocols'
  <draft-ietf-anima-constrained-join-proxy-09.txt> as Proposed Standard

The IESG plans to make a decision in the next few weeks, and solicits final
comments on this action. Please send substantive comments to the
last-call@ietf.org mailing lists by 2022-04-08. Exceptionally, comments may
be sent to iesg@ietf.org instead. In either case, please retain the beginning
of the Subject line to allow automated sorting.

Abstract


   This document defines a protocol to securely assign a Pledge to a
   domain, represented by a Registrar, using an intermediary node
   between Pledge and Registrar.  This intermediary node is known as a
   "constrained Join Proxy".  An enrolled Pledge can act as a
   constrained Join Proxy.

   This document extends the work of Bootstrapping Remote Secure Key
   Infrastructures (BRSKI) by replacing the Circuit-proxy between Pledge
   and Registrar by a stateless/stateful constrained Join Proxy.  It
   relays join traffic from the Pledge to the Registrar.




The file can be obtained via
https://datatracker.ietf.org/doc/draft-ietf-anima-constrained-join-proxy/



No IPR declarations have been submitted directly on this I-D.






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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Robert Wilton <rwilton@cisco.com>, Mark Nottingham <mnot@mnot.net>, Roman Danyliw <rdd@cert.org>
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Subject: [Anima] /.well-known/brski reference to brski-registry
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--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable


We were discussing the /.well-known/cmp that is in being proposed in draft-=
ietf-lamps-cmp-updates,
We were comparing it to /.well-known/brski and /.well-known/est.
   https://www.iana.org/assignments/well-known-uris/well-known-uris.xhtml#w=
ell-known-uris-1

BRSKI has a sub-registry at:
   https://www.iana.org/assignments/brski-parameters/brski-parameters.xhtml=
#brski-well-known-uris

Question 1)
   Why isn't the sub-registry referenced in the /.well-known registry?
   It seems like the sub-registry should be linked in the related
   information.

Question 2)
   Should the CMP document be establishing a registry or not?

=2D-
]               Never tell me the odds!                 | ipv6 mesh network=
s [
]   Michael Richardson, Sandelman Software Works        |    IoT architect =
  [
]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails  =
  [





=2D-
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 I=C3=B8T consulti=
ng )
           Sandelman Software Works Inc, Ottawa and Worldwide





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Archived-At: <https://mailarchive.ietf.org/arch/msg/anima/qNlXMRw6a5yqSebUmIVRbXwvS38>
Subject: Re: [Anima] /.well-known/brski reference to brski-registry
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Thank you Michael for rising the questions.

> Von: Anima <anima-bounces@ietf.org> Im Auftrag von Michael Richardson
> Gesendet: Donnerstag, 31. M=E4rz 2022 17:48
>=20
>=20
> We were discussing the /.well-known/cmp that is in being proposed in draf=
t-ietf-
> lamps-cmp-updates, We were comparing it to /.well-known/brski and /.well-
> known/est.
>=20
> Question 2)
>    Should the CMP document be establishing a registry or not?
>=20
As discussed during IETF 113 I plan to do these things in CMP Updates
- register 'cmp' in the "Well-Known URIs" registry
- define a protocol registry group "Certificate Management Protocol (CMP)"
- define a registry for "CMP Well-Known Arbitrary Label URI Segments" defin=
ing 'p' to be followed by a <profileLabel>.
In addition I would define a registry for "CMP Well-Known Operation Label U=
RI Segments" in Lightweight CMP Profile containing the path segments define=
d three for http and coap use.

Does this makes sense?

Hendrik


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From: Toerless Eckert <tte@cs.fau.de>
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Subject: [Anima] ANIMA IETF113 notes posted
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https://datatracker.ietf.org/meeting/113/materials/minutes-113-anima-01

If you have suggestions for fixes, pls. just edit into notes.ietf.org source:

https://notes.ietf.org/notes-ietf-113-anima

And let us chair know, we will then re-import the notes.

Cheers
    Toerless


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Date: Thu, 31 Mar 2022 19:36:37 +0200
From: Toerless Eckert <tte@cs.fau.de>
To: "Rob Wilton (rwilton)" <rwilton@cisco.com>
Cc: ops-ads@ietf.org, Warren Kumari <warren@kumari.net>, Anima WG <anima@ietf.org>, anima-chairs@ietf.org
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Subject: [Anima] Rob pls. approve: Re: Rob/Warren: Early allocation request for draft-ietf-anima-constrained-voucher (according to RFC7120)
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Hi Rob

This request here somehow fell through the cracks. Pls. approve.

Thanks
    Toerless

In-Reply-To: <CAHw9_iL3Crt2r75UvZeiUDUuwZb53RzmEoEvrTr41Yc6U8yDrg@mail.gmail.com>
On Tue, Jul 27, 2021 at 03:02:45PM -0400, Warren Kumari wrote:
> This sounds fine to me, but actual approval should come from Rob.
> W
> 
> On Thu, Jul 22, 2021 at 7:35 PM <tte@cs.fau.de> wrote:
> >
> > Dear Rob, Warren,
> >
> > As chairs of the ANIMA WG, we hereby request your AD approval
> > for early allocation of code points from IANA according to RFC7120
> > for draft-ietf-anima-constrained-voucher.
> >
> > This is similar to the early registration request we did for what
> > is now  RFC8366 (voucher), where we requested voucher encoding with CMS
> > (application/voucher-cms+json) in 2019.
> >
> > We have now active development and interop work (during IETF111 Hackathon)
> > for the new encoding option for the constained voucher via COSE. It would
> > help the ongoing pre-production implementations a lot if they would not have to
> > come up with non-assigned code-points now.
> >
> > Toerless (for the chairs)
> >
> > Draft:
> >
> > Reference document for registration request is:
> >   https://datatracker.ietf.org/doc/html/draft-ietf-anima-constrained-voucher-13
> >
> > to be pushed soon after datatracker opens again, until then:
> >
> > https://github.com/anima-wg/constrained-voucher/blob/master/constrained-voucher.txt
> >
> > We request two early allocations:
> >
> > 1. IANA "Media Types" applications registry accordin to draft section 12.5/12.5.1:
> >    https://www.iana.org/assignments/media-types/media-types.xhtml#application
> >
> >    Name                 Template                        Reference
> >    voucher-cose+cbor    application/voucher-cose+cbor   [draft-ietf-anima-constrained-voucher]
> >
> >    Template according to reference draft, section 12.5.1:
> >
> >    Type name:  application
> >    Subtype name:  voucher-cose+cbor
> >    Required parameters:  none
> >    Optional parameters:  none
> >    Encoding considerations:  binary
> >    Security considerations:  Security Considerations of THIS RFC.
> >    Interoperability considerations:  The format is designed to be
> >      broadly interoperable.
> >    Published specification:  THIS RFC.
> >    Applications that use this media type:  ANIMA, 6tisch, and other
> >      zero-touch onboarding systems
> >    Additional information:
> >      Magic number(s):  None
> >      File extension(s):  .vch
> >      Macintosh file type code(s):  none
> >    Person & email address to contact for further information:  IETF
> >      ANIMA WG
> >    Intended usage:  LIMITED
> >    Restrictions on usage:  NONE
> >    Author:  ANIMA WG
> >    Change controller:  IETF
> >    Provisional registration? (standards tree only):  NO
> >
> > 2. CoAP content type registy
> >    https://www.iana.org/assignments/core-parameters/core-parameters.xhtml#content-formats
> >
> >    Media type                    Encoding   ID  References
> >    ----------------------------  --------- ---- ----------
> >    application/voucher-cose+cbor           TBD3 [draft-ietf-anima-constrained-voucher]
> >
> >
> > The ANIMA WG chairs have verified that the required conditions for
> > early allocation from RFC7120, Section 2 are met:
> >
> > a) Standards Action (document is standards track ANIMA WG draft)
> >
> > b) The WG draft adequately describes the desired semantics.
> >
> > c) The WG participants actively working on implementations of the
> >    draft have confirmed that the semantic of the code point is
> >    stable to the extend that it is clear that the final
> >    RFC will need it, and active interoperability testing is ongoing,
> >    only challenged by availability of an early allocation.
> >
> > d) The working group chairs think that it would be highly helpful to
> >    receive an early allocation code point now to support further
> >    interoperability testing, ensuring that the final RFC has the
> >    highest level of practical vetting and can be finished as soon
> >    as possible.
> >
> > The request for early allocation was brought up in the working group
> > and was faced with no disagreement. The working group chairs also
> > understand that there is no risk of depletion of the registry in question.
> >
> > Thank you very much
> >     Toerless (for the chairs)
> 
> 
> 
> -- 
> The computing scientist’s main challenge is not to get confused by the
> complexities of his own making.
>   -- E. W. Dijkstra


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Date: Thu, 31 Mar 2022 13:52:51 -0400
Cc: Michael Richardson <mcr+ietf@sandelman.ca>, Robert Wilton <rwilton@cisco.com>, Mark Nottingham <mnot@mnot.net>, "Roman D. Danyliw" <rdd@cert.org>, "spasm@ietf.org" <spasm@ietf.org>, "david.von.oheimb@siemens.com" <david.von.oheimb@siemens.com>, "Fries, Steffen" <steffen.fries@siemens.com>, "anima@ietf.org" <anima@ietf.org>, John Gray <John.Gray@entrust.com>
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Subject: Re: [Anima] [lamps] /.well-known/brski reference to brski-registry
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> On Mar 31, 2022, at 12:20 PM, Brockhaus, Hendrik =
<hendrik.brockhaus@siemens.com> wrote:
>=20
> Thank you Michael for rising the questions.
>=20
>> Von: Anima <anima-bounces@ietf.org> Im Auftrag von Michael Richardson
>> Gesendet: Donnerstag, 31. M=C3=A4rz 2022 17:48
>>=20
>>=20
>> We were discussing the /.well-known/cmp that is in being proposed in =
draft-ietf-
>> lamps-cmp-updates, We were comparing it to /.well-known/brski and =
/.well-
>> known/est.
>>=20
>> Question 2)
>>   Should the CMP document be establishing a registry or not?
>>=20
> As discussed during IETF 113 I plan to do these things in CMP Updates
> - register 'cmp' in the "Well-Known URIs" registry
> - define a protocol registry group "Certificate Management Protocol =
(CMP)"
> - define a registry for "CMP Well-Known Arbitrary Label URI Segments" =
defining 'p' to be followed by a <profileLabel>.
> In addition I would define a registry for "CMP Well-Known Operation =
Label URI Segments" in Lightweight CMP Profile containing the path =
segments defined three for http and coap use.
>=20
> Does this makes sense?

Hendrik:

That is consistent with the discussion lat week.

Russ=


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Subject: Re: [Anima] /.well-known/brski reference to brski-registry
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=46rom a registry expert POV -

> On 1 Apr 2022, at 2:47 am, Michael Richardson <mcr+ietf@sandelman.ca> =
wrote:
>=20
>=20
> We were discussing the /.well-known/cmp that is in being proposed in =
draft-ietf-lamps-cmp-updates,
> We were comparing it to /.well-known/brski and /.well-known/est.
>   =
https://www.iana.org/assignments/well-known-uris/well-known-uris.xhtml#wel=
l-known-uris-1
>=20
> BRSKI has a sub-registry at:
>   =
https://www.iana.org/assignments/brski-parameters/brski-parameters.xhtml#b=
rski-well-known-uris
>=20
> Question 1)
>   Why isn't the sub-registry referenced in the /.well-known registry?
>   It seems like the sub-registry should be linked in the related
>   information.

Because they didn't ask for it, I imagine. Does seem like a good idea if =
that's the case.

> Question 2)
>   Should the CMP document be establishing a registry or not?

Completely up to you -- how you manage the name spec "under" your =
registration depends on the application at hand.=20

Cheers,

--
Mark Nottingham   https://www.mnot.net/


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A new Request for Comments is now available in online RFC libraries.

        
        RFC 9222

        Title:      Guidelines for Autonomic Service Agents 
        Author:     B. E. Carpenter,
                    L. Ciavaglia,
                    S. Jiang,
                    P. Peloso
        Status:     Informational
        Stream:     IETF
        Date:       March 2022
        Mailbox:    brian.e.carpenter@gmail.com,
                    laurent.ciavaglia@rakuten.com,
                    jiangsheng@huawei.com,
                    pierre.peloso@nokia.com
        Pages:      23
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-anima-asa-guidelines-07.txt

        URL:        https://www.rfc-editor.org/info/rfc9222

        DOI:        10.17487/RFC9222

This document proposes guidelines for the design of Autonomic Service
Agents for autonomic networks. Autonomic Service Agents, together
with the Autonomic Network Infrastructure, the Autonomic Control
Plane, and the GeneRic Autonomic Signaling Protocol, constitute base
elements of an autonomic networking ecosystem.

This document is a product of the Autonomic Networking Integrated Model and Approach Working Group of the IETF.


INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.

This announcement is sent to the IETF-Announce and rfc-dist lists.
To subscribe or unsubscribe, see
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specifically noted otherwise on the RFC itself, all RFCs are for
unlimited distribution.


The RFC Editor Team
Association Management Solutions, LLC



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From: "Brockhaus, Hendrik" <hendrik.brockhaus@siemens.com>
To: Russ Housley <housley@vigilsec.com>
CC: Michael Richardson <mcr+ietf@sandelman.ca>, Robert Wilton <rwilton@cisco.com>, Mark Nottingham <mnot@mnot.net>, "Roman D. Danyliw" <rdd@cert.org>, "spasm@ietf.org" <spasm@ietf.org>, "david.von.oheimb@siemens.com" <david.von.oheimb@siemens.com>, "Fries, Steffen" <steffen.fries@siemens.com>, "anima@ietf.org" <anima@ietf.org>, John Gray <John.Gray@entrust.com>
Thread-Topic: [lamps] [Anima] /.well-known/brski reference to brski-registry
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Archived-At: <https://mailarchive.ietf.org/arch/msg/anima/imVYZBENfXPjWqhhXwVo9knHftA>
Subject: Re: [Anima] [lamps] /.well-known/brski reference to brski-registry
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