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08/29/2023
Longest-chain Attacks: Difficulty Adjustment and Timestamp Verifiability
We study an adversary who attacks a Proof-of-Work (POW) blockchain by se...
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04/19/2023
Distributed Multi-writer Multi-reader Atomic Register with Optimistically Fast Read and Write
A distributed multi-writer multi-reader (MWMR) atomic register is an imp...
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08/19/2022
Technical Report: Asymmetric Mutual Exclusion for RDMA
Coordinating concurrent access to a shared resource using mutual exclusi...
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08/04/2022
Impact of the Consistency Model on Checkpointing of Distributed Shared Memory
In this report, we consider the impact of the consistency model on check...
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09/26/2021
Rabia: Simplifying State-Machine Replication Through Randomization
We introduce Rabia, a simple and high performance framework for implemen...
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11/15/2020
Echo-CGC: A Communication-Efficient Byzantine-tolerant Distributed Machine Learning Algorithm in Single-Hop Radio Network
In this paper, we focus on a popular DML framework – the parameter serve...
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08/26/2020
Amortized Constant Round Atomic Snapshot in Message-Passing Systems
We study the lattice agreement (LA) and atomic snapshot problems in asyn...
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07/29/2020
Reliable Broadcast in Practical Networks: Algorithm and Evaluation
Reliable broadcast is an important primitive to ensure that a source nod...
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04/20/2020
Asynchronous Byzantine Approximate Consensus in Directed Networks
In this work, we study the approximate consensus problem in asynchronous...
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11/13/2019
Exact Byzantine Consensus on Arbitrary Directed Graphs under Local Broadcast Model
We consider Byzantine consensus in a synchronous system where nodes are ...
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03/12/2018
Asynchronous Crash-Tolerant Consensus in Directed Graphs: Randomization and Topology Knowledge
Consider a directed point-to-point network. We are interested in the asy...
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11/06/2017