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Re: [MMUSIC] draft-dtls-sdp: Allow offerer to establish DTLS association before it has received the SDP answer?

Christer Holmberg <christer.holmberg@ericsson.com> Fri, 26 May 2017 11:32 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Martin Thomson <martin.thomson@gmail.com>, Eric Rescorla <ekr@rtfm.com>
CC: "mmusic@ietf.org" <mmusic@ietf.org>
Thread-Topic: [MMUSIC] draft-dtls-sdp: Allow offerer to establish DTLS association before it has received the SDP answer?
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Date: Fri, 26 May 2017 11:32:16 +0000
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Subject: Re: [MMUSIC] draft-dtls-sdp: Allow offerer to establish DTLS association before it has received the SDP answer?
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Hi,

You are the DTLS gurus - please suggest changes that makes the text
correct - and still hopefully keeps Cullen happy :)

Regards,

Christer


On 26/05/17 14:01, "Martin Thomson" <martin.thomson@gmail.com> wrote:

>On 26 May 2017 at 20:37, Eric Rescorla <ekr@rtfm.com> wrote:
>> Also, you say that if you initiate the handshake before the answer
>> is received you are vulnerable to attacks. What attacks are those?
>
>It should be "complete" - on the assumption that a completed handshake
>leads immediately to using the connection.  Really, it's using the
>connection (sending or receiving data or using exporters) that puts
>you at risk, but I don't think that it's worth putting that fine a
>distinction on it.

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