Jianyu Niu

MECURY: Practical Cross-Chain Exchange via Trusted Hardware

2024 · arXiv (Cornell University)

The proliferation of blockchain-backed cryptocurrencies has sparked the need for cross-chain exchanges of diverse digital assets. Unfortunately, current exchanges suffer from high on-chain verification costs, weak threat models of central trusted parties, or synchronous requirements, …

Demystifying Private Transactions and Their Impact in PoW and PoS Ethereum

2025 · arXiv (Cornell University)

In Ethereum, private transactions, a specialized transaction type employed to evade public Peer-to-Peer (P2P) network broadcasting, remain largely unexplored, particularly in the context of the transition from Proof-of-Work (PoW) to Proof-of-Stake (PoS) consensus mechanisms. To …