Re: [Jwt-reg-review] [EXTERNAL] [IANA #1158948] Requested review for IANA registration in draft-ietf-ace-oauth-params (jwt - JSON Web Token Claim)

[Mike Jones <[e-mail]>]

I'm OK with these registrations, but I don't believe that John, Chuck, or I are designated experts for the applicable registries.  Hannes is the expert for the OAuth Parameters registry.  Justin is the expert for the OAuth Introspection registry.

And I don't believe that the OAuth Parameters CBOR Mappings registry has been created yet.

I hope this helps...

				-- Mike

-----Original Message-----
From: Jwt-reg-review <[e-mail]> On Behalf Of Sabrina Tanamal via RT
Sent: Tuesday, February 18, 2020 1:03 PM
Cc: [e-mail]
Subject: [EXTERNAL] [Jwt-reg-review] [IANA #1158948] Requested review for IANA registration in draft-ietf-ace-oauth-params (jwt - JSON Web Token Claim)

Dear John, Michael, and Chuck,

Have you had a chance to review the registration in draft-ietf-ace-oauth-params?

https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-ace-oauth-params&amp;data=02%7C01%7CMichael.Jones%40microsoft.com%7Ce74ace3192cb4a52723608d7b4b60280%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637176566130853320&amp;sdata=5pmASiRTPR%2B7Ve5R1u8myHo6qh%2BGDVjEhKhm6K8hPgc%3D&amp;reserved=0

Thanks,

Sabrina Tanamal
Senior IANA Services Specialist

On Thu Jan 30 00:40:53 2020, sabrina.tanamal wrote:
> Dear John, Michael, and Chuck,
> 
> Have you had a chance to review the registration in draft-ietf-ace- 
> oauth-params?
> 
> https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool
> s.ietf.org%2Fhtml%2Fdraft-ietf-ace-oauth-params&amp;data=02%7C01%7CMic
> hael.Jones%40microsoft.com%7Ce74ace3192cb4a52723608d7b4b60280%7C72f988
> bf86f141af91ab2d7cd011db47%7C1%7C0%7C637176566130863324&amp;sdata=85Yy
> 8GkBoL92w09RdviHOCrUY%2BvNF0Pqe8hJQxZ3Ps0%3D&amp;reserved=0
> 
> Thanks,
> 
> Sabrina Tanamal
> Senior IANA Services Specialist
> 
> > On Thu, Jan 23, 2020 at 02:31:20PM -0700, Brian Campbell wrote:
> > > Apologies, I forgot to reply-all at some earlier point and dropped 
> > > the mailing lists and other cc's off the thread. Added back now.
> > >
> > > And also apologies because I think I need to recuse myself from 
> > > the DE responsibility on the JWT registry request here. I've spent 
> > > more time than I'd like to admit or really have to spare on it and 
> > > am still struggling to understand.
> > >
> > > I appreciate you pointing out the authz-info endpoint in ACE but I 
> > > still don't follow how "rs_cnf" in an access token would really 
> > > work in practice.
> > > The client sends the token to the RS's authz-info endpoint on an 
> > > insecure connection or one that has the server auth with 
> > > potentially different key and the RS stores the access token for 
> > > later use. Then on resource access the RS looks up the access 
> > > token (with respect to the cnf key in
> > > it)
> > > based
> > > on the key the client used in establishing a new mutually 
> > > authentication connection to the RS. For the RS to choose a key 
> > > for server it will use during the handshake (and as far as I know 
> > > the server key is the first in the authn process of the handshake) 
> > > based on the "rs_cnf" in the access token, it needs to remember 
> > > and associate that client and the access token with something else 
> > > (IP address?) that will be available during the handshake. It 
> > > doesn't fit together for me in a way that seems likely to work or 
> > > be interoperable but, like I said, I'm really struggling to 
> > > understand.
> > >
> > > On Thu, Jan 16, 2020 at 12:54 AM Seitz Ludwig 
> > > <[e-mail]>
> > > wrote:
> > >
> > > > Hi Brian,
> > > >
> > > >
> > > >
> > > > Comments inline.
> > > >
> > > >
> > > >
> > > > /Ludwig
> > > >
> > > >
> > > >
> > > > *From:* Brian Campbell <[e-mail]>
> > > > *Sent:* den 13 januari 2020 21:22
> > > > *To:* Seitz Ludwig <[e-mail]>
> > > > *Subject:* Re: [Ace] Requested review for IANA registration in 
> > > > draft-ietf-ace-oauth-params
> > > >
> > > >
> > > >
> > > > Thanks for the response and updates Ludwig,
> > > >
> > > >
> > > >
> > > > Please bear with me while I try to wrap my head around some 
> > > > things.
> > > >
> > > >
> > > >
> > > > The JWT registration request for the "rs_cnf" claim points to 
> > > > Sec
> > > > 3.3
> > > > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F
> > > > %2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-ace-oauth-params-&amp;data
> > > > =02%7C01%7CMichael.Jones%40microsoft.com%7Ce74ace3192cb4a5272360
> > > > 8d7b4b60280%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C6371765
> > > > 66130863324&amp;sdata=0wG8HJXLxcR4YKWlF%2FFGZSB49uZ0u4bg89S2dhyz
> > > > 5Ok%3D&amp;reserved=0
> > > > 08#section-3.3>
> > > > saying it is "a hint [in the access token] to the RS about which 
> > > > key it should use to authenticate towards the client".  But 
> > > > doesn't the client have to go through the DTLS/TLS handshake 
> > > > with the RS (which is presumably when it authenticates to the 
> > > > client) before it presents the access token?
> > > > I'm not seeing how this would work as seems the RS won't see the 
> > > > hint until after it needs it.
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > [LS] Not in the ACE flow. We use the access token to establish 
> > > > keys at the RS both for the client and the RS. We have therefore 
> > > > defined a new ACE-OAuth endpoint (authz-info) at the RS. The 
> > > > client can POST access tokens to this endpoint without prior 
> > > > authentication.
> > > >
> > > > At that point, the RS only validates the signature/MAC by the AS.
> > > >
> > > >
> > > >
> > > > Later at the time of access, the corresponding token is linked 
> > > > to the access request via the pop-mechanism and the 
> > > > client/access specific parts are validated (e.g. scope, 
> > > > subject).
> > > >
> > > >
> > > >
> > > > Hope that clarifies things a bit.
> > > >
> > > >
> > > >
> > > > On Sat, Jan 11, 2020 at 8:30 AM Seitz Ludwig 
> > > > <[e-mail]>
> > > > wrote:
> > > >
> > > > Hello again Brian,
> > > >
> > > >
> > > >
> > > > Thank you for reviewing this! Indeed the handling of JWT/JSON 
> > > > interactions was handled sloppily here. I will soon issue a 
> > > > draft update that specifies that the JSON-based interactions 
> > > > should use the syntax from
> > > > RFC7800
> > > > while
> > > > the CBOR-based ones should use ID.ietf-ace-cwt-proof-of- 
> > > > possession.
> > > >
> > > >
> > > >
> > > > This correction goes for all the use of “cnf”, “req_cnf” and 
> > > > “rs_cnf”.
> > > >
> > > >
> > > >
> > > > Regards,
> > > >
> > > >
> > > >
> > > > Ludwig
> > > >
> > > >
> > > >
> > > > *From:* Ace <[e-mail]> *On Behalf Of *Brian Campbell
> > > > *Sent:* den 10 januari 2020 22:12
> > > > *To:* Ludwig Seitz <[e-mail]>
> > > > *Cc:* Roman Danyliw <[e-mail]>; [e-mail]; Jim 
> > > > Schaad < [e-mail]>; The IESG <[e-mail]>; 
> > > > [e-mail]; [e-mail]; Benjamin Kaduk 
> > > > <[e-mail]>
> > > > *Subject:* Re: [Ace] Requested review for IANA registration in 
> > > > draft-ietf-ace-oauth-params
> > > >
> > > >
> > > >
> > > > That  "rs_cnf" claim registration request in 9.1 points to 3.3 
> > > > which says it has 'the same syntax and semantics as defined in 
> > > > for the "rs_cnf"
> > > > parameter', which I think is in 4.1. And 4.1 says that the 
> > > > "rs_cnf"
> > > > values
> > > > 'follow the syntax of the "cnf" claim from section 3.1 of 
> > > > [I-D.ietf-ace-cwt-proof-of-possession].' Similar to other 
> > > > comments I've made today, I don't follow what that would mean 
> > > > for the value of the claim when it's a JWT. And that seems like 
> > > > something that's important to understand for the purpose of a 
> > > > JWT claims registry request.
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > On Sat, Dec 21, 2019 at 4:11 AM Ludwig Seitz 
> > > > <[e-mail]>
> > > > wrote:
> > > >
> > > > Hello JWT registry reviewers,
> > > >
> > > > the IESG-designated experts for the JWT claims registry have 
> > > > asked me to send a review request to you about the "rs_cnf" 
> > > > claim registered
> > > > here:
> > > >
> > > > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%
> > > > 2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-ace-oauth-params-&amp;data=
> > > > 02%7C01%7CMichael.Jones%40microsoft.com%7Ce74ace3192cb4a52723608
> > > > d7b4b60280%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C63717656
> > > > 6130863324&amp;sdata=0wG8HJXLxcR4YKWlF%2FFGZSB49uZ0u4bg89S2dhyz5
> > > > Ok%3D&amp;reserved=0
> > > > 07#section-
> > > > 9.1
> > > >
> > > > Thank you in advance for you review comments.
> > > >
> > > > Regards,
> > > >
> > > > Ludwig
> > > >
> > > > _______________________________________________
> > > > Ace mailing list
> > > > [e-mail]
> > > > https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%
> > > > 2Fwww.ietf.org%2Fmailman%2Flistinfo%2Face&amp;data=02%7C01%7CMic
> > > > hael.Jones%40microsoft.com%7Ce74ace3192cb4a52723608d7b4b60280%7C
> > > > 72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637176566130863324&am
> > > > p;sdata=PmTfR3Vpg60L%2BF4Bp9lTFrh%2FpDHhff2b%2B%2FnvUxOXoFw%3D&a
> > > > mp;reserved=0
> > > >
> > > >
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