IETF
ace
ace@jabber.ietf.org
Friday, March 29, 2019< ^ >
francesca has set the subject to: ACE meeting - IETF 102 - https://datatracker.ietf.org/meeting/102/materials/agenda-102-ace/
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[09:58:03] <francesca> Hi, I am your jabber scribe today, please preface your comments with "mic:" if you want them relayed to the mic
[09:58:47] <Renzo Navas> Hi, thanks Francesca.
[09:59:32] <francesca> No problem :)
[10:00:16] <francesca> I will also raise hands for you and report your +1 in the mic if you write so, make sure to indicate which options you are voting for!
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[10:08:48] <francesca> Please let me know if you want the name of the people on the floor mic reported here as well
[10:09:16] <kaduk@jabber.org/barnowl> I completely did not get the name of the previous speaker at the floor
mic, if you have that still in cache
[10:10:03] <francesca> Karan Saini
[10:10:36] <kaduk@jabber.org/barnowl> thank you!
[10:10:50] <francesca> no problem :)
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[10:20:24] <kaduk@jabber.org/barnowl>    If the token is intended for multiple recipients (i.e. an audience
   that is a group), integrity protection of the token with a
symmetric
   key is not sufficient, since any of the recipients could modify the
   token undetected by the other recipients.  Therefore a token with a
   multi-recipient audience MUST be protected with an asymmetric
   signature.
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[10:23:44] <francesca> Just checked the sec cons, section 6 3rd paragraph covers that
[10:24:09] <francesca> and ends with "Therefore a token with a multi-recipient audience MUST be protected with an asymmetric signature."
[10:24:19] <kaduk@jabber.org/barnowl> Yup -- I was doing the same thing
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[10:24:36] <francesca> oh right I didn't recognize the quote!
[10:24:43] <francesca> thanks :)
[10:24:59] <kaduk@jabber.org/barnowl> I'm going to go with "great minds think alike"
[10:25:07] <francesca> :D
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[10:30:55] <francesca> I'm up next presenting, could someone in the room pick up the jabber role during my presentation?
[10:32:21] <kaduk@jabber.org/barnowl> I can try to pay attention to jabber for your talk
[10:32:30] <zyxbac> I’m in the room. Will try my best.
[10:32:56] <kaduk@jabber.org/barnowl> zyxbac is probably less distracted than I am
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[10:33:05] <francesca> thanks!
[10:35:10] <jch> Francesca Palombini presenting https://datatracker.ietf.org/meeting/104/materials/slides-104-ace-06-key-provisioning-for-group-communication-01
[10:37:46] <zyxbac> Ludwig Seitz at mic
[10:38:10] <zyxbac> Carsten Bormann at mic
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[10:41:00] <zyxbac> Peter van der Stok at mic
[10:41:16] <zyxbac> Ludwig Seitz at mic
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[10:43:00] <zyxbac> Peter van der Stok @mic
[10:43:19] <kaduk@jabber.org/barnowl> Looks like
https://datatracker.ietf.org/doc/draft-bormann-core-ace-aif/ is
Carsten's expired draft
[10:44:34] <zyxbac> Ludwig Seitz @mic
[10:45:17] <jch> Off topic question: does ACE define a DTLS profile somewhere?
[10:45:34] <jch> Or more generally does it recommend crypto algorithms?
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[10:46:16] <kaduk@jabber.org/barnowl> https://tools.ietf.org/html/draft-ietf-ace-dtls-authorize-07
[10:46:23] <francesca> Thanks zyxbac
[10:46:36] <francesca> and thanks Ben
[10:46:55] <jch> ty, Kaduk.
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[10:51:38] <Michael> Ludwig Seitz @mic
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[10:56:43] <jch> Kaduk, that's interesting but not what I'm looking for.  How could I find about the kind of crypto algorithms that are recommended for constrained nodes?  Are you guys using Blake2s?  Which elliptic curves are computationally tractable on constrained devices?  That kind of thing.
[10:57:59] <francesca> jch see if this is more of interest: https://datatracker.ietf.org/wg/lwig/about/
[10:59:09] <jch> Looks good, thanks Francesca.
[11:09:11] <kaduk@jabber.org/barnowl> Hannes said likely to add as a transport in the next version of which
protocol?
[11:09:19] <francesca> LWM2M
[11:09:40] <francesca> https://www.omaspecworks.org/
[11:12:54] <francesca> https://www.omaspecworks.org/what-is-oma-specworks/iot/lightweight-m2m-lwm2m/
[11:13:03] <francesca> it is based on CoAP right now
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[11:21:35] Ludwig has set the subject to: ACE meeting - IETF 104 - https://datatracker.ietf.org/meeting/104/materials/agenda-104-ace/
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[11:29:11] kaduk@jabber.org/barnowl has set the subject to: ACE meeting - IETF 104 - https://datatracker.ietf.org/meeting/104/materials/agenda-104-ace/
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[11:33:33] <jch> Using what as certificate?
[11:33:51] <francesca> CWT (CBOR Web Token)
[11:33:52] <kaduk@jabber.org/barnowl> new TLS certificate type for CWT, with PoP tokens
[11:33:57] <jch> ty
[11:34:19] <francesca> https://tools.ietf.org/html/draft-tschofenig-tls-cwt-00
[11:35:44] <francesca> meeting is over, thank you
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[11:35:48] <jch> Thanks to all that have been answering my stupid questions.
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