[114552] in cryptography@c2.net mail archive
Re: Gutmann Soundwave Therapy
daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Sun Feb 3 19:08:47 2008
To: "James A. Donald" <jamesd@echeque.com>
Cc: Cryptography <cryptography@metzdowd.com>
From: "Perry E. Metzger" <perry@piermont.com>
Date: Sun, 03 Feb 2008 19:08:30 -0500
In-Reply-To: <47A52C2D.6080408@echeque.com> (James A. Donald's message of "Sun\, 03 Feb 2008 12\:51\:25 +1000")
"James A. Donald" <jamesd@echeque.com> writes:
> That point is of course true. But the developers wanted
> to transport IP and UDP. Peter should have known that
> SSL is incapable of transporting IP and UDP, because it
> will introduce large, unpredictable, and variable
> delays.
>
> If, for example, VOIP goes over SSL, the speakers would
> become entirely unintelligible.
That's just plain factually wrong. DTLS does fine for that purpose. At
the point where you are sending datagrams with voice data, you're just
doing conventional crypto over a fixed length packet each time, and
those algorithms are quite deterministic.
Indeed, DTLS was designed specifically for such applications.
Perry
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