A survey of security issues in multicast communications

The recent emergence and popularity of group-oriented applications on the W orld Wide Web has triggered a demand for scalable security solutions for gr oup communication. One such solution, secure multicast is appealing because it leverages the efficiency of multicast data delivery. However, it also p resents several research challenges, most notably in group communication ar chitecture, group key manage ment, and message source authentication. In th is survey, we discuss these issues and review proposed solutions to them.