Near-Optimal Signature-Free Byzantine Agreement Reduces Blockchain Communication Cost
New signature-free validated Byzantine agreement protocols achieve near-optimal bit complexity, fundamentally reducing the communication overhead for synchronous state machine replication.
Accountable Liveness Secures Consensus against Transaction Delay Attacks
This research extends accountable safety to liveness, introducing 'certificates of guilt' to cryptographically punish nodes that intentionally stall transaction finality.
Efficient Validated Agreement Bridges Complexity Gap for Secure State Replication
New signature-free validated Byzantine agreement protocols achieve optimal bit complexity, securing progress and external validity for high-performance state machine replication.
Formalizing Economic Security with Expensive to Attack in Absence of Collapse
A new EAAC property formally quantifies the economic security of consensus, proving that targeted slashing is only possible under strong synchronous network assumptions.
Adaptive Byzantine Agreement Reduces Communication Complexity Based on Actual Faults
A new synchronous protocol achieves adaptive word complexity in Byzantine Agreement, scaling communication with actual faults to unlock efficient, fault-tolerant consensus.