Re: [rtcweb] Requiring ICE for RTC calls

Matthew Kaufman <matthew.kaufman@skype.net> Thu, 29 September 2011 22:24 UTC

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Date: Thu, 29 Sep 2011 15:25:47 -0700
From: Matthew Kaufman <matthew.kaufman@skype.net>
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To: Hadriel Kaplan <HKaplan@acmepacket.com>
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Cc: Randell Jesup <randell-ietf@jesup.org>, "<rtcweb@ietf.org>" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Requiring ICE for RTC calls
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On 9/29/2011 2:59 PM, Hadriel Kaplan wrote:
> ICE-Lite is easier for gateway-type devices, but it's still got to do the SHA-1 calc per STUN connectivity-check response packet, which is painful from a performance/scale perspective (and thus cost).

Ridiculous. We're not talking something like one SHA-1 HMAC per packet 
received... this is one SHA-1 per connectivity test. That's one or two 
packets *per call*. No way that increases the cost/complexity of any 
possible device that might be terminating or transcoding media.

Matthew Kaufman