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Re: [Perc] Last Call: <draft-ietf-perc-private-media-framework-08.txt> (A Solution Framework for Private Media in Privacy Enhanced RTP Conferencing) to Proposed Standard

Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com> Wed, 13 February 2019 17:34 UTC

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Subject: Re: [Perc] Last Call: <draft-ietf-perc-private-media-framework-08.txt> (A Solution Framework for Private Media in Privacy Enhanced RTP Conferencing) to Proposed Standard
To: Bernard Aboba <bernard.aboba@gmail.com>
Cc: Alexandre GOUAILLARD <alex.gouaillard@cosmosoftware.io>, Emad Omara <emadomara@google.com>, Emil Ivov <emcho@jitsi.org>, IETF discussion list <ietf@ietf.org>, Lorenzo Miniero <lorenzo@meetecho.com>, Nils Ohlmeier <nohlmeier@mozilla.com>, "hta@google.com" <hta@google.com>, perc@ietf.org
References: <154889546931.10496.2408974719921724953.idtracker@ietfa.amsl.com> <5486C91C-48EA-4AA1-85EE-05A0B01C1E70@meetecho.com> <C6FEAEB9-CF8E-48AF-B03F-1406FF9CB303@cosmosoftware.io> <CAOW+2ducgj400pk3xPFAkRYxnYvqwhMsE9rOO0u9PgLpniaaRA@mail.gmail.com> <CAPvvaaLYFeNkZ4Pfdh4pa2btNW6EGZBnAOvXzVZ9egU8V-gBNQ@mail.gmail.com> <CAOW+2dvom822NgjF7OAa2A8YDeqZ+mbCqA=fUcq-Y49oFyGpsA@mail.gmail.com> <CAPvvaa+EzwgMXB_t7ZVTBgZH2y4=neUm1RymUNKnMV-6zyGPaQ@mail.gmail.com> <a74a8239-27dc-5704-096b-05cc5e02bd18@gmail.com> <543375ED-9A4F-452C-AE51-9499DAD5CEE0@gmail.com> <80a1f634-0888-c5e2-f6be-729d4cca3b28@cosmosoftware.io> <06d91175-b071-49fe-01cc-4a1323ad85f7@gmail.com> <91A16283-A392-4217-97E1-B04A5C8AD245@mozilla.com> <9c4149c0-184b-5ee9-e0a4-2b41420d3279@gmail.com> <632D3A5E-0F15-40D8-B6F8-1307ECDCDBC9@gmail.com> <96e177cb-a407-bd41-767d-5f0951fb7ee8@gmail.com> <CAOW+2dvcQpgiV0Bjsj4Xv_RZMioPj7ywYwXL2jgtb214y8BZ3w@mail.gmail.com>
From: Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com>
Message-ID: <41224dad-ee0c-a128-850b-c3e0770a74fe@gmail.com>
Date: Wed, 13 Feb 2019 18:39:32 +0100
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On 13/02/2019 18:26, Bernard Aboba wrote:
> On Wed, Feb 13, 2019 at 9:12 AM Sergio Garcia Murillo 
> <sergio.garcia.murillo@gmail.com 
> <mailto:sergio.garcia.murillo@gmail.com>> wrote:
>
>
>     We have two deployments with PERC-Lite, one with VP8 and with
>     Jitsi for Symphony and another one with VP9 SVC and Medooze. 
>
>
> [BA] Wow. That makes PERC-lite the defacto standard for Finance. How 
> do you deal with the SSRC immutability issue?


The original rtp packet payload (without extension headers) is included 
in the outer encrypted payload, so any rtp params may be changed by the 
SFU as it would normally do. We proposed this to be consistent with perc 
double so it was less disruptive, but we have been working on 
alternative encryption algorithms with less overhead including full 
frame encryption ones.

Best regards

Sergio

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