428 citations · 446 across the 9 of their papers we have counts for
12 papers
Exploring Security Practices of Smart Contract Developers
Tanusree Sharma, Zhixuan Zhou, Andrew Miller +1
Smart contracts are self-executing programs that run on blockchains (e.g., Ethereum). 680 million US dollars worth of digital assets controlled by smart contracts have been hacked…
Publicly Auditable MPC-as-a-Service with succinct verification and universal setup
Sanket Kanjalkar, Ye Zhang, Shreyas Gandlur +1
In recent years, multiparty computation as a service (MPCaaS) has gained popularity as a way to build distributed privacy-preserving systems. We argue that for many such applicatio…
Safer Illinois and RokWall: Privacy Preserving University Health Apps for COVID-19
Vikram Sharma Mailthody, James Wei, Nicholas Chen +14
COVID-19 has fundamentally disrupted the way we live. Government bodies, universities, and companies worldwide are rapidly developing technologies to combat the COVID-19 pandemic a…
An Empirical Analysis of Privacy in the Lightning Network
George Kappos, Haaroon Yousaf, Ania Piotrowska +4
Payment channel networks, and the Lightning Network in particular, seem to offer a solution to the lack of scalability and privacy offered by Bitcoin and other blockchain-based cry…
Brief Note: Asynchronous Verifiable Secret Sharing with Optimal Resilience and Linear Amortized Overhead
Aniket Kate, Andrew Miller, Tom Yurek
In this work we present hbAVSS, the Honey Badger of Asynchronous Verifiable Secret Sharing (AVSS) protocols - an AVSS protocol that guarantees linear amortized communication overhe…
TxProbe: Discovering Bitcoin's Network Topology Using Orphan Transactions
Sergi Delgado-Segura, Surya Bakshi, Cristina Pérez-Solà +4
Bitcoin relies on a peer-to-peer overlay network to broadcast transactions and blocks. From the viewpoint of network measurement, we would like to observe this topology so we can c…
Dandelion++: Lightweight Cryptocurrency Networking with Formal Anonymity Guarantees
Giulia Fanti, Shaileshh Bojja Venkatakrishnan, Surya Bakshi +4
Recent work has demonstrated significant anonymity vulnerabilities in Bitcoin's networking stack. In particular, the current mechanism for broadcasting Bitcoin transactions allows…
Ekiden: A Platform for Confidentiality-Preserving, Trustworthy, and Performant Smart Contract Execution
Raymond Cheng, Fan Zhang, Jernej Kos +6
Smart contracts are applications that execute on blockchains. Today they manage billions of dollars in value and motivate visionary plans for pervasive blockchain deployment. While…
An Empirical Analysis of Traceability in the Monero Blockchain
Malte Möser, Kyle Soska, Ethan Heilman +8
Monero is a privacy-centric cryptocurrency that allows users to obscure their transactions by including chaff coins, called "mixins," along with the actual coins they spend. In thi…
Instantaneous Decentralized Poker
Iddo Bentov, Ranjit Kumaresan, Andrew Miller
We present efficient protocols for amortized secure multiparty computation with penalties and secure cash distribution, of which poker is a prime example. Our protocols have an ini…
Sprites and State Channels: Payment Networks that Go Faster than Lightning
Andrew Miller, Iddo Bentov, Ranjit Kumaresan +2
Bitcoin, Ethereum and other blockchain-based cryptocurrencies, as deployed today, cannot scale for wide-spread use. A leading approach for cryptocurrency scaling is a smart contrac…
Zero-Collateral Lotteries in Bitcoin and Ethereum
Andrew Miller, Iddo Bentov
We present cryptocurrency-based lottery protocols that do not require any collateral from the players. Previous protocols for this task required a security deposit that is …