Abstract. Many emerging group oriented and collaborative applications such as audio/video conferences use the peer-to-peer (P2P) paradigm. Confidentiality is an often demanded feature for such applications, e.g. in business meetings, to provide group privacy. How to build a secure P2P video conference system is still an open issue. In this paper several possible solutions are discussed. We present a security architecture used for P2P video conferences that ensures confidential talks in an enterprise environment whose branches might be geographically dispersed
