We propose several decentralized ceremonies for constructing a powers-of-tau structured
reference string (SRS). Our protocols make use of a blockchain platform to run in a …

Smart contracts present a uniform approach for deploying distributed computation and have
become a popular means to develop security critical applications. A major barrier to …

Decentralization has been touted as the principal security advantage which propelled
blockchain systems at the forefront of developments in the financial technology space. Its …

Minimizing the energy cost and carbon footprint of the Bitcoin blockchain and related
protocols is one of the most widely identified open questions in the cryptocurrency space …

Non-interactive zero-knowledge proofs (NIZKs) and in particular succinct NIZK arguments of
knowledge (so called zk-SNARKs) increasingly see real-world adoption in large and …

Zero-knowledge succinct non-interactive arguments (zk-SNARKs) rely on knowledge
assumptions for their security. Meanwhile, as the complexity and scale of cryptographic …

We propose Cornucopia, a distributed randomness beacon protocol combining
accumulators and verifiable delay functions. Cornucopia extends the Unicorn protocol of …

We propose Cornucopia, a protocol framework for distributed randomness beacons
combining accumulators and verifiable delay functions. Cornucopia generalizes the Unicorn …

Many cryptographic protocols rely upon an initial\emph {trusted setup} to generate public
parameters. While the concept is decades old, trusted setups have gained prominence with …

Non-interactive zero-knowledge proofs (NIZKs) and in particular succinct NIZK arguments of
knowledge (zk-SNARKs) increasingly see real-world adoption in large and complex …