High Performance, Robust and Secure Group Communication
Quarterly Technical Report, January 2003
Progress:This period we focused on two directions: The first was working with the red team and the experimentation conducted by BBN and SRI. The second was the integrated architecture.
With regards to the experimentation and red team effort, we participated in the weekly teleconferences and provided fixes to the code base of the layered architecture. We also provided feedback on the experimentation documents. Separately, we participated in some discussions with the red team directly.
Our main research effort concentrated on the integrated architecture.
We investigated a high-performance security architecture for Spread, under two
well-known group semantics: Virtual Synchrony and Extended Virtual Synchrony
Both models support network partitions and merges. Our approach entails
using contributory group key management in a light-weight/heavy-weight
group architecture such that the cost of key management is amortized
over many groups, while each group has its own unique key.
We have completed our evaluation effort of the layered architecture and its performance in the face of network partitions and merges.
We conducted a presentation and demonstration of Secure Spread, both layered architecture and a preliminary version of the integrated architecture at Colorado Springs for Strategic Command.
We also conducted a presentation and demonstration for the Boeing OASIS Dem/Val team as they evaluated Secure Spread for their project.
Software:So far, we registered about 400 downloads for Secure Spread from our web site and about 5000 for Spread.
Plans for Next Quarter: