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Many emerging web and Internet applications are based on group communication model. In the Internet, multicast has been used successfully to provide an efficient, best-effort delivery service from a sender to a large group of receivers. Thus, securing group communication (i.e., providing confidentiality, authenticity, and integrity of messages delivered between group members) becomes an important Internet design issue. This paper presents a comprehensive summary of recent works addressing the number of scalable approaches which have been proposed for Key Distribution in Secure Multicast Communication.