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EUROSYS
2011
ACM
8 years 7 months ago
Increasing performance in byzantine fault-tolerant systems with on-demand replica consistency
Traditional agreement-based Byzantine fault-tolerant (BFT) systems process all requests on all replicas to ensure consistency. In addition to the overhead for BFT protocol and sta...
Tobias Distler, Rüdiger Kapitza
NSDI
2007
9 years 6 months ago
Beyond One-Third Faulty Replicas in Byzantine Fault Tolerant Systems
Byzantine fault tolerant systems behave correctly when no more than f out of 3f + 1 replicas fail. When there are more than f failures, traditional BFT protocols make no guarantee...
Jinyuan Li, David Mazières
OSDI
2000
ACM
9 years 5 months ago
Proactive Recovery in a Byzantine-Fault-Tolerant System
This paper describes an asynchronous state-machine replication system that tolerates Byzantine faults, which can be caused by malicious attacks or software errors. Our system is t...
Miguel Castro, Barbara Liskov
SOSP
2007
ACM
10 years 26 days ago
Zyzzyva: speculative byzantine fault tolerance
We present Zyzzyva, a protocol that uses speculation to reduce the cost and simplify the design of Byzantine fault tolerant state machine replication. In Zyzzyva, replicas respond...
Ramakrishna Kotla, Lorenzo Alvisi, Michael Dahlin,...
OSDI
2006
ACM
10 years 4 months ago
HQ Replication: A Hybrid Quorum Protocol for Byzantine Fault Tolerance
There are currently two approaches to providing Byzantine-fault-tolerant state machine replication: a replica-based approach, e.g., BFT, that uses communication between replicas t...
James A. Cowling, Daniel S. Myers, Barbara Liskov,...
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