• Publications
  • Influence
Hawk: The Blockchain Model of Cryptography and Privacy-Preserving Smart Contracts
TLDR
We present Hawk, a decentralized smart contract system that does not store financial transactions in the clear on the blockchain, thus retaining transactional privacy from the public's view. Expand
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SoK: Research Perspectives and Challenges for Bitcoin and Cryptocurrencies
TLDR
We provide the first systematic exposition Bit coin and the many related crypto currencies or 'altcoins.' Drawing from a scattered body of knowledge, we identify three key components of Bit coin's design that can be decoupled. Expand
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The Honey Badger of BFT Protocols
TLDR
We present an alternative, HoneyBadgerBFT, the first practical asynchronous BFT protocol, which guarantees liveness without making any timing assumptions. Expand
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Bitcoin and Cryptocurrency Technologies - A Comprehensive Introduction
TLDR
Bitcoin and Cryptocurrency Technologies provides a comprehensive introduction to the revolutionary yet often misunderstood new technologies of digital currency. Expand
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On Scaling Decentralized Blockchains - (A Position Paper)
TLDR
We analyze how fundamental and circumstantial bottlenecks in Bitcoin limit the ability of its current peer-to-peer overlay network to support substantially higher throughputs and lower latencies. Expand
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Stubborn Mining: Generalizing Selfish Mining and Combining with an Eclipse Attack
TLDR
We expand the mining strategy space to include novel "stubborn" strategies that, for a large range of parameters, earn the miner more revenue. Expand
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Mixcoin: Anonymity for Bitcoin with Accountable Mixes
TLDR
We propose Mixcoin, a protocol to facilitate anonymous payments in Bitcoin and similar cryptocurrencies. Expand
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Step by Step Towards Creating a Safe Smart Contract: Lessons and Insights from a Cryptocurrency Lab
TLDR
We document our experiences in teaching smart contract programming to undergraduate students at the University of Maryland, the first pedagogical attempt of its kind. Expand
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Permacoin: Repurposing Bitcoin Work for Data Preservation
TLDR
We propose a modification to Bit coin that repurposes its mining resources to achieve a more broadly useful goal: distributed storage of archival data. Expand
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Sprites: Payment Channels that Go Faster than Lightning
TLDR
We develop a novel construction for payment channels that reduces the worst-case “collateral cost” for offchain payments. Expand
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