Re: [rtcweb] Encryption mandate (and offer/answer)

Jonathan Lennox <jonathan@vidyo.com> Wed, 07 September 2011 20:16 UTC

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From: Jonathan Lennox <jonathan@vidyo.com>
To: Randell Jesup <randell-ietf@jesup.org>
Date: Wed, 7 Sep 2011 16:18:06 -0400
Thread-Topic: [rtcweb] Encryption mandate (and offer/answer)
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Encryption mandate (and offer/answer)
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On Sep 7, 2011, at 3:20 PM, Randell Jesup wrote:
> You could make forced-encryption the default, and allow the application 
> control over whether to allow it is turned off for specific cases, like 
> a PSTN call, or under the server's control.  Signalling is secure, so it 
> could even use a direct optional downgrade from SAVP* to AVP* (i.e. 
> similar to the best-effort-strp draft)

This has implications for the parallel thread about the use of SDP offer/answer.

The solution MMUSIC has standardized for best-effort SRTP is SDP CapNeg, RFC 5939.  Do we want to require CapNeg support in browsers?

--
Jonathan Lennox
jonathan@vidyo.com