Re: [rtcweb] Unsolicited DTLS Handshake

Martin Thomson <martin.thomson@gmail.com> Tue, 02 December 2014 07:28 UTC

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Date: Mon, 1 Dec 2014 21:28:02 -1000
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From: Martin Thomson <martin.thomson@gmail.com>
To: Roman Shpount <roman@telurix.com>
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Subject: Re: [rtcweb] Unsolicited DTLS Handshake
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On 1 December 2014 at 16:29, Roman Shpount <roman@telurix.com> wrote:
> I am talking about renegotiation, such as in
> https://tools.ietf.org/html/rfc5764#section-5.2, which is essentially a new
> handshake.

ekr corrected me.  Firefox explicitly disables renegotiation.  We
don't have the machinery in place to re-export SRTP keying material
anyway (I suspect that it requires use of MKI).

As for the text in RFC 5763, I read that as : if you have a
connection, use it; if you don't, or the existing one is "bad" for any
reason, make a new one.  That is not renegotiation.