• Publications
  • Influence
HotStuff: BFT Consensus with Linearity and Responsiveness
TLDR
HotStuff is the first partially synchronous BFT replication protocol exhibiting these combined properties, and its simplicity enables it to be further pipelined and simplified into a practical, concise protocol for building large-scale replication services.
Byzantine quorum systems
TLDR
This paper considers the arbitrary (Byzantine) failure of data repositories and presents the first study of quorum system requirements and constructions that ensure data availability and consistency despite these failures, and demonstrates quorum systems over n servers with a load of O(\frac{1}{\sqrt{n}})$, thus meeting the lower bound on load for benignly fault-tolerant quorum Systems.
Viceroy: a scalable and dynamic emulation of the butterfly
TLDR
The construction derives from recent advances in the study of peer-to-peer lookup networks, where rapid changes require efficient and distributed maintenance, and where the lookup efficiency is impacted both by the lengths of paths to requested data and the presence or elimination of bottlenecks in the network.
Fairplay - Secure Two-Party Computation System
TLDR
Fairplay is introduced, a full-fledged system that implements generic secure function evaluation (SFE) and provides a test-bed of ideas and enhancements concerning SFE, whether by replacing parts of it, or by integrating with it.
Probabilistic quorum systems
TLDR
It is shown that this technique offers effective load reduction on servers and high availability, and bounds on the server load that can be achieved with these techniques are proved.
SBFT: A Scalable and Decentralized Trust Infrastructure
TLDR
The results show that SBFT simultaneously provides almost 2x better throughput and about 1.5x better latency relative to a highly optimized system that implements the PBFT protocol.
HotStuff: BFT Consensus in the Lens of Blockchain
TLDR
This work presents HotStuff, a leader-based Byzantine fault-tolerant replication protocol for the partially synchronous model that enables a correct leader to drive the protocol to consensus at the pace of actual network delay with communication complexity that is linear in the number of replicas.
SBFT: a Scalable Decentralized Trust Infrastructure for Blockchains
TLDR
SBFT provides a smart contract execution environment based on Ethereum's EVM byte-code that addresses the challenges of scalability and decentralization and shows speedups both in throughput and in latency.
LLS: a locality aware location service for mobile ad hoc networks
TLDR
LLS is presented, the first location service for the Unit Disk Graph model whose lookup and publish algorithms have worst case locality guarantees and average case locality awareness efficiency for any source destination pair.
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