187 citations · 299 across the 14 of their papers we have counts for
15 papers · 1 filter
Robust, privacy-preserving, transparent, and auditable on-device blocklisting
Kurt Thomas, Sarah Meiklejohn, Michael A. Specter +4
With the accelerated adoption of end-to-end encryption, there is an opportunity to re-architect security and anti-abuse primitives in a manner that preserves new privacy expectatio…
How to Peel a Million: Validating and Expanding Bitcoin Clusters
George Kappos, Haaroon Yousaf, Rainer Stütz +3
One of the defining features of Bitcoin and the thousands of cryptocurrencies that have been derived from it is a globally visible transaction ledger. While Bitcoin uses pseudonyms…
SoK: SCT Auditing in Certificate Transparency
Sarah Meiklejohn, Joe DeBlasio, Devon O'Brien +3
The Web public key infrastructure is essential to providing secure communication on the Internet today, and certificate authorities play a crucial role in this ecosystem by issuing…
Forsage: Anatomy of a Smart-Contract Pyramid Scheme
Tyler Kell, Haaroon Yousaf, Sarah Allen +2
Pyramid schemes are investment scams in which top-level participants in a hierarchical network recruit and profit from an expanding base of defrauded newer participants. Pyramid sc…
Think Global, Act Local: Gossip and Client Audits in Verifiable Data Structures
Sarah Meiklejohn, Pavel Kalinnikov, Cindy S. Lin +4
In recent years, there has been increasing recognition of the benefits of having services provide auditable logs of data, as demonstrated by the deployment of Certificate Transpare…
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…
Why is a Ravencoin Like a TokenDesk? An Exploration of Code Diversity in the Cryptocurrency Landscape
Pierre Reibel, Haaroon Yousaf, Sarah Meiklejohn
Interest in cryptocurrencies has skyrocketed since their introduction a decade ago, with hundreds of billions of dollars now invested across a landscape of thousands of different c…
Tracing Transactions Across Cryptocurrency Ledgers
Haaroon Yousaf, George Kappos, Sarah Meiklejohn
One of the defining features of a cryptocurrency is that its ledger, containing all transactions that have evertaken place, is globally visible. As one consequenceof this degree of…
An Empirical Analysis of Anonymity in Zcash
George Kappos, Haaroon Yousaf, Mary Maller +1
Among the now numerous alternative cryptocurrencies derived from Bitcoin, Zcash is often touted as the one with the strongest anonymity guarantees, due to its basis in well-regarde…
Betting on Blockchain Consensus with Fantomette
Sarah Azouvi, Patrick McCorry, Sarah Meiklejohn
Blockchain-based consensus protocols present the opportunity to develop new protocols, due to their novel requirements of open participation and explicit incentivization of partici…
VAMS: Verifiable Auditing of Access to Confidential Data
Alexander Hicks, Vasilios Mavroudis, Mustafa Al-Bassam +2
We propose VAMS, a system that enables transparency for audits of access to data requests without compromising the privacy of parties in the system. VAMS supports audits on an aggr…
Winning the Caucus Race: Continuous Leader Election via Public Randomness
Sarah Azouvi, Patrick McCorry, Sarah Meiklejohn
Consensus protocols inherently rely on the notion of leader election, in which one or a subset of participants are temporarily elected to authorize and announce the network's lates…
Contour: A Practical System for Binary Transparency
Mustafa Al-Bassam, Sarah Meiklejohn
Transparency is crucial in security-critical applications that rely on authoritative information, as it provides a robust mechanism for holding these authorities accountable for th…
Consensus in the Age of Blockchains
Shehar Bano, Alberto Sonnino, Mustafa Al-Bassam +4
The blockchain initially gained traction in 2008 as the technology underlying bitcoin, but now has been employed in a diverse range of applications and created a global market wort…
Centrally Banked Cryptocurrencies
George Danezis, Sarah Meiklejohn
Current cryptocurrencies, starting with Bitcoin, build a decentralized blockchain-based transaction ledger, maintained through proofs-of-work that also generate a monetary supply.…