With emerging of new cooperative applications, the group communication is clearly become a very important concept within the network architecture. The multicast transmission is appeared as the most efficient way to send some data to a specific group composed of several members. Moreover, the increasing interest in network communication through the using of the Internet requires somes services such as authentication, integrity and confidentiality to transport securely data. In this paper we present a survey about secure multicasting. We describe the different approaches existing to distribute and manage the keys within a group. We point out how the IP multicast security deals with. We show that presently no security model meets fully the requirements needed for group communication.