Summary: Secure Group Communication in Asynchronous Networks with Failures:
Integration and Experiments 
Yair Amir, y Giuseppe Ateniese, y Damian Hasse, z Yongdae Kim, z
Cristina Nita­Rotaru, y Theo Schlossnagle, y John Schultz, y Jonathan Stanton y
Gene Tsudik x
Abstract
The increasing popularity and diversity of collaborative
applications prompts a need for highly secure and reliable
communication platforms for dynamic peer groups. Secu­
rity mechanisms for such groups tend to be both expensive
and complex and their integration with reliable group com­
munication services presents a formidable challenge.
This paper discusses some important integration issues,
reports on our implementation experience and provides ex­
perimental results. Our approach utilizes distributed group
key management developed by the Cliques project. We en­
hance it to handle processor and network faults (under a
fail­stop or crash­and­recover model) and asynchronous
membership events (such as joins, leaves, merges and net­
work partitions). Our approach leverages the strong prop­

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

Collections: Computer Technologies and Information Sciences