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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> Mon, 05 June 2017 15:39 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Cullen Jennings <fluffy@iii.ca>, Roman Shpount <roman@telurix.com>
CC: Ben Campbell <ben@nostrum.com>, Eric Rescorla <ekr@rtfm.com>, Martin Thomson <martin.thomson@gmail.com>, "mmusic-chairs@ietf.org" <mmusic-chairs@ietf.org>, mmusic <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: Mon, 05 Jun 2017 15:36:05 +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,

>> 1. Starting DTLS handshake until the corresponded answer is received is NOT RECOMMENDED since it can
>> result in unauthenticated media. If unauthenticated media is played to the end user, in cases such as early 
>> media in SIP calls, this should be indicated to the end user.
>
> No. Doing the handshake as quickly as possible is recommend - it's what you do with the media before
> you know who you are talking to that is the issue you are concerned with. And knowing who you are 
> talking often involves much more than checking the fingerprint. So I don't agree this is not recommended. 

Could you suggest text that you WOULD agree to? :)

Regards,

Christer

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