4 papers
Crossroads: A Smart Contract Layer for Chain-Abstracted Assets
James Austgen, Dani Vilardell, Ari Juels
This paper introduces Crossroads, a smart contract layer for chain-abstracted assets. In Crossroads, assets from nearly any chain are represented on a single backend blockchain as…
Creds: Privately Inferred Credentials
Samuel Breckenridge, Dani Vilardell, Derek Leung +4
Decentralized verifiable credential systems have seen limited deployment in practice. Existing constructions, built on zero-knowledge proofs, are complex, application-specific, and…
B-Privacy: Defining and Enforcing Privacy in Weighted Voting
Samuel Breckenridge, Dani Vilardell, Andrés Fábrega +4
In traditional, one-vote-per-person voting systems, privacy equates with ballot secrecy: voting tallies are published, but individual voters' choices are concealed. Voting systems…
Liquefaction: Privately Liquefying Blockchain Assets
James Austgen, Andrés Fábrega, Mahimna Kelkar +5
Inherent in the world of cryptocurrency systems and their security models is the notion that private keys, and thus assets, are controlled by individuals or individual entities. We…