Authenticated key agreement algorithm for conference establishment in 3G mobile network
D.B. Milic, V. Šenk · 2005
This paper describes an authenticated key agreement procedure for establishing conference sessions between multiple users in IP multimedia subsystem (IMS) of 3G mobile network. The main presumption is a tightly coupled conference model with a central conference server (focus/mixer). The server has only basic functionalities of message distribution, whereby SIP messages are used as carriers for agreement information