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Scaling Secure Group Communication Systems: Beyond Peer-to-Peer Cristina Nita-Rotaru

Summary: Scaling Secure Group Communication Systems: Beyond Peer-to-Peer
Yair Amir

Cristina Nita-Rotaru

Jonathan Stanton

Gene Tsudik

This paper develops several integrated security architecture scenarios for 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 benefits and drawbacks of each proposed architecture and present
experimental results that demonstrate the superior scalability of an integrated architecture.
Keywords: secure group communication, contributory group key agreement, peer groups, group communica-
tion, system architecture.
1 Introduction
Many routine activities in modern, everyday life involve the Internet: shopping for goods (such as books,
cars, software and even groceries), administering bank or credit card accounts and making financial transfers,
participating in voice or video-conferences, or simply playing games. Most such activities are in fact supported by


Source: Amir, Yair - Department of Computer Science, Johns Hopkins University


Collections: Computer Technologies and Information Sciences