Zyzzyva: Speculative Byzantine Fault Tolerance

Paper: Zyzzyva: Speculative Byzantine Fault Tolerance. Ramakrishna Kotla, Lorenzo Alvisi, Mike Dahlin, Allen Clement, and Edmund Wong. 2007

Notes

It is an SMR protocol.
It uses the traditional SMR definition.
It is in the partially synchronous model.
Although not explicitly mentioned, this protocol is adaptively secure*. (There is an attack on this paper.)

References

Ramakrishna Kotla, Lorenzo Alvisi, Mike Dahlin, Allen Clement, and Edmund Wong. 2007. “Zyzzyva: Speculative Byzantine Fault Tolerance.” http://portal.acm.org/citation.cfm?doid=1294261.1294267.