IETF
stir
stir@jabber.ietf.org
Tuesday, July 22, 2014< ^ >
Dan York has set the subject to: STIR at IETF89
Room Configuration
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[12:58:32] <Simon Romano> Slide 1: STIR
[12:58:40] <Simon Romano> Current presenter: Robert Sparks
[12:58:41] <Simon Romano> Slide 1: STIR
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[13:01:08] <Eric Burger> Anybody home?
[13:01:17] <Simon Romano> Slide 1: STIR
[13:01:23] <Simon Romano> Current presenter: Robert Sparks
[13:01:24] <Simon Romano> Slide 1: STIR
[13:01:48] <Eric Burger> I've got mu3a audio, but not Meetecho audio.
[13:02:17] <Simon Romano> Wait a minute, Eric. Working on that.
[13:02:22] <Eric Burger> THanks
[13:02:40] <Simon Romano> Slide 2: Note Well
[13:02:42] <Simon Romano> Slide 3: Agenda
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[13:04:11] <Simon Romano> Back in aminute...
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[13:07:17] <ewb25> (1) do we have a Jabber scribe (Dan?)? (2) Meetecho seems to have disappeared.
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[13:09:03] <ewb25> Anybody home?
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[13:09:09] <Jonathan Lennox> I see Simon…
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[13:09:49] <ewb25> RJS: Don’t forget Jabber Scribe!
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[13:09:57] <Jonathan Lennox> Simon is rebooting their server.
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[13:10:11] <ewb25> Thanks. It looked like it was almost back.
[13:10:34] <Jonathan Lennox> I will Jabber scribe.
[13:10:42] <ewb25> Thanks Jonathan.
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[13:11:15] <burn> Oops, sorry Eric.  Was ignoring jabber for the last few minutes
[13:11:33] <ewb25> 💤
[13:11:35] <Jonathan Lennox> Prefix with "mic".  If I seem not to be paying attention say "Jonathan Lennox" and Adium will bounce to notify me.
[13:11:38] <burn> :)
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[13:11:52] <Simon Romano> Slide 1: rfc4474bis-01
[13:11:57] <Simon Romano> Current presenter: Jon Peterson
[13:11:58] <Simon Romano> Slide 1: rfc4474bis-01
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[13:12:07] <Simon Romano> Hello guys.
[13:12:16] <Simon Romano> Sorry for the delay :-)
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[13:12:36] <Simon Romano> Had some issues with the passive streams..
[13:12:42] <Simon Romano> Slide 2: First principles (yet again)
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[13:13:35] <Simon Romano> Slide 3: Recap
[13:14:07] <Simon Romano> @Eric: is audio ok now?
[13:14:12] <ewb25> yup
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[13:18:34] <Simon Romano> Slide 4: Canonicalization
[13:19:13] <Eric Burger> Note: I presume Jon means Prepend a country code, not Append a country code.
[13:21:13] <ewb25> GSM & CTIA addressed this, but came up with different answers. GSM says default CC is the CC where you are at. CTI says CC is the CC of the phone.
[13:21:26] <ewb25> ^CTI^CTIA
[13:21:36] <Jonathan Lennox> ewb: is that for hte mic?
[13:21:46] <ewb25> might as well. point is not a solvable problem
[13:22:12] <ewb25> that’s me :-)
[13:23:46] <ewb25> +1 to cullen’s point
[13:24:19] <ewb25> MIC: To is determined by carrier. See GSM vs. CTIA above. As Jon said, phone network works.
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[13:26:04] <ewb25> MIC: Can someone explain the value of the IETF specifying how this gets determined? As Richard said, the signer knows (1) where the call is going and as such (2) knows what to populate the field with.
[13:26:15] <ewb25> I.e., the text is “up to the signer”
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[13:27:41] <ewb25> My hand up!
[13:27:45] <ewb25> (for using ABCD)
[13:28:15] <Jonathan Lennox> Robert raises his hand.
[13:28:20] <ewb25> Not today, but in the 1980’s in Belgium
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[13:30:39] <ewb25> It was mostly signaling to the local switch or PBX
[13:30:56] <Jonathan Lennox> Any of this for the mic?
[13:31:03] <ewb25> Only if people care
[13:32:02] <ewb25> For the MIC: Does anyone know if E.164 specifies ABCD?
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[13:32:40] <ewb25> I’m looking. I don’t see it. That’s our out to drop ABCD.
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[13:33:07] <Simon Romano> Slide 5: Canonicalization (2)
[13:33:08] <ewb25> ITU-T E.164 2010: “The ten-digit decimal character set 0-9 is used throughout the numbering plan format including the subscriber number, national (significant) number and the country code.”
[13:33:10] <Simon Romano> Slide 4: Canonicalization
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[13:39:53] <rbarnes > just sign urn:service:sos.police :)
[13:40:04] <ewb25> 🎉
[13:41:07] <Simon Romano> Slide 5: Canonicalization (2)
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[13:50:21] <Simon Romano> Slide 6: Baiting Attacks
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[13:59:03] <Simon Romano> Slide 7: Fixing the baiting attack
[14:04:43] <ewb25> MIC: protecting the media will not help, unless we are protecting the media+E.164 number. Otherwise, the media signature gets dropped and you never know. However, protecting media+E.164 number gets broken when SBC’s hack the media. On the other hand, with the implosion of Acme, is this no longer an issue? [last part is a joke]
[14:07:24] <ewb25> I *feel* Jon :-)
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[14:10:05] <ewb25> MIC: Sorry, but if there is *EVER* a way for a REFER to leak, someone evil will find it and use it. Corner cases are where the attacks come from. So, depending on a mythical NNI to fix this problem is not a solution.
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[14:11:19] <ewb25> I’m saying the broader version of what Paul is trying to say.
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[14:12:25] <ewb25> Cannot hear people not at the mic
[14:12:32] <ewb25> oooohhh
[14:13:01] <Jonathan Lennox> We're discussing the temperature sensor that Jon knocked over.
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[14:13:09] <ewb25> thanks
[14:13:55] <ewb25> I forgot I could see video in Meetech. Just pulled it up.
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[14:15:07] <Simon Romano> Slide 8: Open Issue: STIR scope
[14:15:08] <burn> Ha, so you missed Jon shaking his finger at you?
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[14:15:36] <ewb25> I missed that 😞
[14:15:49] <ewb25> Now I’m ready for it 😘
[14:16:27] <Hala Mowafy> how did you get the video to work?
[14:16:54] <ewb25> MIC: I say we cannot ignore bad bugs, but cannot drag out the work group. Note these things and work on them as Individual drafts.
[14:17:31] <ewb25> Meetecho video: I opened up the Flash stream. I had been using the RTSP stream because of the latency advantage, but then I miss the wagged fingers.
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[14:24:56] <Simon Romano> Slide 9: Open Issue: Credential caching
[14:31:49] <Simon Romano> Slide 10: Open Issue: Partial Body Protection
[14:33:06] <Simon Romano> :-)
[14:33:23] <ewb25> You are right. I’m thinking body armor now.
[14:33:26] <Simon Romano> Next time I'll provide you with a higher quality (webrtc) video...
[14:33:57] <Eric Burger> .
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[14:38:12] <ewb25> Ooh - fighting words!
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[14:40:11] <ewb25> MIC: SIP is *designed* for man in the middle attacks (‘trusted’ proxies, SBC’s, etc). Therefore, how about this for why we are not bothering to protect against pervasive monitoring: We are not caring about man in the middle attacks, because they are there by design. Sad, but true.
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[14:45:15] <Simon Romano> Slide 11: Path Forward
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[14:46:11] <Simon Romano> Slide 10: Open Issue: Partial Body Protection
[14:46:32] <ewb25> I’m in :-)
[14:46:41] <Simon Romano> Slide 11: Path Forward
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[14:48:07] <Simon Romano> Presentation stopped
[14:48:19] <Simon Romano> Slide 1: Credentials Roadmap
[14:48:23] <Simon Romano> Slide 2: The Path Forward
[14:48:49] <Simon Romano> Slides in the room are not working :-)
[14:48:59] <Simon Romano> Current presenter: Sean Turner
[14:49:00] <Simon Romano> Slide 2: The Path Forward
[14:49:08] <ewb25> I can see them :-)
[14:50:15] <Simon Romano> Slide 3: draft-peterson-stir-certificates-00
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[14:51:18] <Simon Romano> Slide 4: draft-kaplan-stir-cider-00
[14:51:59] <Simon Romano> Slide 5: How to choose?
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[14:58:02] <Simon Romano> Slide 6: Choices or Hums
[14:58:07] <ewb25> Shockey says Yes, so the answer is Yes
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[14:58:43] <burn> rest of room is vewy vewy quiet
[14:58:53] <ewb25> 💤
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[15:00:15] <ewb25> Who’s butt am I looking at?
[15:00:21] <Simon Romano> :-)
[15:00:27] <Simon Romano> Audio technician...
[15:00:36] <Simon Romano> Change of batteries...
[15:00:44] <ewb25> 👽
[15:00:45] <Simon Romano> Nice view? :-)
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[15:03:41] <Jonathan Lennox> Any hums from the room?
[15:03:51] <ewb25> I’m happy either way
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[15:05:16] <Simon Romano> See you guys!
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[15:05:34] <Simon Romano> Shutting down the session in a second.
[15:05:39] <ewb25> Thanks Jonathan for Jabbering!
[15:05:42] <Simon Romano> Bye Eric ;-)
[15:05:52] <ewb25> Thanks Simon for making it work.
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[15:06:01] <Simon Romano> My pleasure, as usual.
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[15:06:10] <Simon Romano> And see you next time, in person!
[15:06:13] <Simon Romano> Presentation stopped
[15:06:28] <ewb25> Won’t be in Hawaii :-( Conflicting conference.
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[15:06:53] <Simon Romano> ...and that's a pity!
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[15:07:21] <Jonathan Lennox> Bye!
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[15:07:24] <ewb25> Yup. Looks like I will never make the November meeting. There is a tiny chance I will be out on Thursday of the November meeting, but don’t bank on it.
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