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Re: [rtcweb] DTLS, DTLS-SRTP, and 5-tuples

Christer Holmberg <christer.holmberg@ericsson.com> Wed, 04 March 2015 22:05 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Roman Shpount <roman@telurix.com>, Eric Rescorla <ekr@rtfm.com>
Thread-Topic: [rtcweb] DTLS, DTLS-SRTP, and 5-tuples
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Subject: Re: [rtcweb] DTLS, DTLS-SRTP, and 5-tuples
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Hi,

I am not objecting to the idea, but as far as I know this "logical channel" concept is not defined anywhere, so before we can start referring to it it needs to be anchored somewhere on DTLS level.

Regards,

Christer

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________________________________
From: Roman Shpount<mailto:roman@telurix.com>
Sent: ‎04/‎03/‎2015 22:51
To: Eric Rescorla<mailto:ekr@rtfm.com>
Cc: Christer Holmberg<mailto:christer.holmberg@ericsson.com>; rtcweb@ietf.org<mailto:rtcweb@ietf.org>
Subject: Re: [rtcweb] DTLS, DTLS-SRTP, and 5-tuples

On Wed, Mar 4, 2015 at 3:07 PM, Eric Rescorla <ekr@rtfm.com<mailto:ekr@rtfm.com>> wrote:

On Wed, Mar 4, 2015 at 12:04 PM, Christer Holmberg <christer.holmberg@ericsson.com<mailto:christer.holmberg@ericsson.com>> wrote:
What if you jump from an UDP candidate to a TCP candidate? At the same time you would be jumping from DTLS to TLS (even for SRTP, where DTLS is only used for key management).

No. You do DTLS even with TCP.

And this is still continues to be the same logical channel, i.e. this does not constitute a transport change.
_____________
Roman Shpount

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