Re: [rtcweb] WebRTC-SIP interop: and why SDES-SRTP is a need

Roman Shpount <roman@telurix.com> Thu, 05 April 2012 18:37 UTC

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Date: Thu, 5 Apr 2012 14:37:23 -0400
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From: Roman Shpount <roman@telurix.com>
To: =?ISO-8859-1?Q?I=F1aki_Baz_Castillo?= <ibc@aliax.net>
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Cc: Randell Jesup <randell-ietf@jesup.org>, rtcweb@ietf.org
Subject: Re: [rtcweb] WebRTC-SIP interop: and why SDES-SRTP is a need
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On Thu, Apr 5, 2012 at 2:21 PM, Iñaki Baz Castillo <ibc@aliax.net> wrote:

> 2012/4/5 Roman Shpount <roman@telurix.com>:
> > I dislike SDES for being a "somewhat secure" protocol. This is a very
> > dangerous territory where end user is under impression of being
> protected,
> > but reality is different. IMHO, in such situations it is better to have
> no
> > security at all, so that users know not to do anything they will regret.
>
> And the same is true for DTLS, so?
>
> This can be mitigated with either identity validation or via fingerprint
validation via an independent channel. For SDES-SRTP the only way is secure
is that everything on its path is secure, which is much harder to validate.
_____________
Roman Shpount