[VOIPSEC] Thoughts on VoIP security for Groups

[Hannes Tschofenig]

You might also be interested in the following specification: 
http://tools.ietf.org/html/draft-wing-avt-dtls-srtp-key-transport-03

It had received good feedback in the IETF and will soon become a WG item (if
I recall it correctly). 

Ciao
Hannes
 
>-----Original Message-----
>From: voipsec-bounces at voipsa.org 
>[mailto:voipsec-bounces at voipsa.org] On Behalf Of Lewis Adam-CAL022
>Sent: 14 April, 2009 18:45
>To: voipsec at voipsa.org
>Subject: [VOIPSEC] Thoughts on VoIP security for Groups
>
>I'm curious how much thought the industry has given to the 
>idea of establishing group keys for VoIP.  This could be done 
>with MIKEY/SRTP (MIKEY supports establishment of a group 
>encryption key, and this is the path being taken by the 3GPP 
>standards/secure MBMS) or could be done with GDOI and IPsec 
>(though I question the maturity of GDOI).  This could be used 
>in a conference bridge type scenario, where all participating 
>members would receive the same group encryption key; hence 
>allowing VoIP endpoints to encrypt the packet a single time, 
>rather than having to learn keys of each group member.  This 
>would of course also support the multicasting of the media 
>stream as well.
> 
>Tx!
>Adam
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