Re: [rtcweb] New use-case proposed
Harald Alvestrand <harald@alvestrand.no> Fri, 11 May 2012 20:52 UTC
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Date: Fri, 11 May 2012 22:52:14 +0200
From: Harald Alvestrand <harald@alvestrand.no>
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To: Göran Eriksson AP <goran.ap.eriksson@ericsson.com>
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] New use-case proposed
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On 05/11/2012 06:38 PM, Göran Eriksson AP wrote: > > 11 maj 2012 kl. 18:21 skrev "Harald Alvestrand"<harald@alvestrand.no>: > >> I propose to reject this use case because it requires yet another >> security redesign. >> The clue is here: >> >>> - The keying solution must allow each participants to encrypt to >>> multiple receivers without any decryption+encryption in the middle node >>> >> This means that each participant must use the same encryption keys to >> all other participants; this in turn means that when someone leaves the >> group, all participants must change their encryption keys; it also means >> that as long as shared keys are used for authentication, all >> participants can impersonate all other participants. >> >> In fact, this solution has most of the issues (except for the network >> layer deployment issue) that leads me to strongly advocate leaving >> multicast out of scope for this effort. > You mean for this phase of webrtc std efforts or for ever? Until we've got an usage scenario with a deployment story that I find credible. The point I'm pretty vehement on - that lack of multicast support should not be a blocker for finalizing the specs we are working on. Harald
- Re: [rtcweb] New use-case proposed Magnus Westerlund
- Re: [rtcweb] New use-case proposed Roman Shpount
- Re: [rtcweb] New use-case proposed Göran Eriksson AP
- [rtcweb] New use-case proposed Stefan Hakansson LK
- Re: [rtcweb] New use-case proposed Justin Uberti
- Re: [rtcweb] New use-case proposed Göran Eriksson AP
- Re: [rtcweb] New use-case proposed Harald Alvestrand
- Re: [rtcweb] New use-case proposed Henry Lum
- Re: [rtcweb] New use-case proposed Harald Alvestrand
- Re: [rtcweb] New use-case proposed Göran Eriksson AP
- Re: [rtcweb] New use-case proposed Dan Wing
- Re: [rtcweb] New use-case proposed Marshall Eubanks
- Re: [rtcweb] New use-case proposed Dan Wing
- Re: [rtcweb] New use-case proposed Michael Welzl
- Re: [rtcweb] New use-case proposed Magnus Westerlund
- Re: [rtcweb] New use-case proposed Oscar Ohlsson