Yair Amir, Johns Hopkins University, Baltimore, MD
John Lane, Johns Hopkins University, Baltimore
This paper presents the first hierarchical Byzantine fault-tolerant replication architecture suitable to systems that span multiple wide area sites. The architecture con- fines the effects of any malicious replica to its local site, reduces message complexity of wide area communication, and allows read-only queries to be performed locally within a site for the price of additional hardware. A prototype implementation is evaluated over several network topologies and is compared with a flat Byzantine fault-tolerant approach.
Citation:
Yair Amir, Claudiu Danilov, Jonathan Kirsch, John Lane, Danny Dolev, Cristina Nita-Rotaru, Josh Olsen, David Zage, "Scaling Byzantine Fault-Tolerant Replication toWide Area Networks," dsn, pp.105-114, International Conference on Dependable Systems and Networks (DSN'06), 2006