Issue No. 03 - July-September (2005 vol. 2)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TDSC.2005.39
Yair Amir , IEEE Computer Society
Cristina Nita-Rotaru , IEEE
Jonathan Stanton , IEEE Computer Society
Gene Tsudik , IEEE
Group communication systems are high-availability distributed systems providing reliable and ordered message delivery, as well as a membership service, to group-oriented applications. Many such systems are built using a distributed client-server architecture where a relatively small set of servers provide service to numerous clients. In this work, we show how group communication systems can be enhanced with security services without sacrificing robustness and performance. More specifically, we propose several integrated security architectures for distributed client-server group communication systems. In an integrated architecture, security services are implemented in servers, in contrast to a layered architecture, where the same services are implemented in clients. We discuss performance and accompanying trust issues of each proposed architecture and present experimental results that demonstrate the superior scalability of an integrated architecture.
Index Terms- Group key management, secure communication, peer groups, group communication.
Y. Amir, G. Tsudik, C. Nita-Rotaru and J. Stanton, "Secure Spread: An Integrated Architecture for Secure Group Communication," in IEEE Transactions on Dependable and Secure Computing, vol. 2, no. , pp. 248-261, 2005.