Dynamic byzantine quorum systems

Lorenzo Alvisi, Dahlia Malkhi, Evelyn Pierce, Michael K. Reiter, Rebecca N. Wright

Research output: Chapter in Book/Report/Conference proceedingConference contribution

29 Scopus citations

Abstract

Byzantine quorum systems [13] enhance the availability and efficiency of fault-tolerant replicated services when servers may suffer Byzantine failures. An important limitation of Byzantine quorum systems is their dependence on a static threshold limit on the number of server faults. The correctness of the system is only guaranteed if the actual number of faults is lower than the threshold at all times. However, a threshold chosen for the worst case wastes expensive replication in the common situation where the number of faults averages well below the worst case. In this paper, we present protocols for dynamically raising and lowering the resilience threshold of a quorum-based Byzantine fault-tolerant data service in response to current information on the number of server failures. Using such protocols, a system can operate in an efficient low-threshold mode with relatively small quorums in the absence of faults, increasing and decreasing the quorum size (and thus the tolerance) as faults appear and are dealt with, respectively.

Original languageEnglish (US)
Title of host publicationProceedings of the 2002 International Conference on Dependable Systems and Networks
Pages283-292
Number of pages10
DOIs
StatePublished - Dec 1 2000
Externally publishedYes
EventProceedings of the International Conference on Dependable Systems and Networks - New York, NY, United States
Duration: Jul 1 2001Jul 4 2001

Publication series

NameProceedings of the 2002 International Conference on Dependable Systems and Networks

Other

OtherProceedings of the International Conference on Dependable Systems and Networks
CountryUnited States
CityNew York, NY
Period7/1/017/4/01

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Alvisi, L., Malkhi, D., Pierce, E., Reiter, M. K., & Wright, R. N. (2000). Dynamic byzantine quorum systems. In Proceedings of the 2002 International Conference on Dependable Systems and Networks (pp. 283-292). (Proceedings of the 2002 International Conference on Dependable Systems and Networks). https://doi.org/10.1109/ICDSN.2000.857551