A Secure and Scalable Framework for Group Communication

Critical networking issues in group communication involve security, scalability and dynamic membership changes. Security provides confidentiality, authenticity, and integrity of messages exchanged between group members. Tree Group Diffie Hellman is an efficient key agreement protocol for peer groups. But, it is not scalable beyond 100 members. On the other hand, large multicast groups don´t support dynamic membership changes. In this Paper, we propose a new framework, which addresses the problems of scalability and dynamic membership change.