Re: [rtcweb] SRTP for communications consent verification [was: New security draft]
Harald Alvestrand <harald@alvestrand.no> Thu, 08 September 2011 12:04 UTC
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Date: Thu, 08 Sep 2011 14:06:22 +0200
From: Harald Alvestrand <harald@alvestrand.no>
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To: Christer Holmberg <christer.holmberg@ericsson.com>
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] SRTP for communications consent verification [was: New security draft]
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On 09/08/11 13:57, Christer Holmberg wrote: > > Hi, > > One question regarding section 4.2 (Communications Consent Verification). > > When SRTP is used, could the security establishment procedure for SRTP also be used for communications consent verification purpose? > I don't think so, because if the other party lies about his IP address, this does not affect the key negotiation when the key negotiation is done out-of-band (with SDES). If using DTLS-SRTP, the ICE handshake has to complete before the keys can be negotiated, so verifying consent to communication comes for free with the ICE handshake anyway.
- [rtcweb] New security draft Cullen Jennings
- [rtcweb] SRTP for communications consent verifica… Christer Holmberg
- Re: [rtcweb] SRTP for communications consent veri… Harald Alvestrand