Hi all.
I'm looking on the way to secure RTP / RTCP sessions and I've found the SRTP Draft.
I've read it but I still have a problem with one point that don't seem to be clear for me.
I've understand how session's keys are generate and how all the mechanisms of encryption and signature are performs but I don't understand HOW initial masters keys are exchange ?
Nowhere in the SRTP draft is specify key exchange protocols or something like this. Or I've not see an important part in the draft.
Does it rely on external protocol like SIP / SAP / SDP ?
Or is there a key exchange mechanism in the SRTP protocol ?
Really thanks to u.
Jacky BUYCK
France Telecom R&D - Caen - DMI/SIR/SSI
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