28 Feb
2005
28 Feb
'05
11:44 a.m.
Hi Klaus,
On Monday 28 February 2005 11:31, Klaus Darilion wrote:
Nils Ohlmeier wrote:
There are clients. See my previous mail. SRTP is completely transparent for SIP proxies.
How will the clients exchange the key for the RTP encryption? Will it be sent in the SDP? If yes, wouldn't I also need encrypted SIP to hide the RTP key?
Yes the keys will be exchanged within the SDP. So indeed you should crypt the SDP in signaling either by using TLS or S/MIME. Otherwise someone could read the keys from the signaling and decrypt the RTP streams.
Greetings Nils