Overview
Research interests are security, applied cryptography, distributed computing and blockchains. Recent focus topics include robust and efficient design of blockchain protocols and efficient privacy-preserving computation.
Current Appointments & Affiliations
Associate Professor of Computer Science
·
2025 - Present
Computer Science,
Trinity College of Arts & Sciences
Recent Publications
Optimistic, Signature-Free Reliable Broadcast and Its Applications
Conference Ccs 2025 Proceedings of the 2025 ACM Sigsac Conference on Computer and Communications Security · November 22, 2025 Reliable broadcast (RBC) is a key primitive in fault-tolerant distributed systems, and improving its efficiency can benefit a wide range of applications. This work focuses on signature-free RBC protocols, which are particularly attractive due to their comp ... Full text CiteDecentralization of Ethereum's Builder Market
Conference Proceedings IEEE Symposium on Security and Privacy · January 1, 2025 Blockchains protect an ecosystem worth more than $500bn with strong security properties derived from the principle of decentralization. Is today's blockchain decentralized? In this paper, we empirically studied one of the least decentralized parts of Ether ... Full text CiteSailfish: Towards Improving the Latency of DAG-Based BFT
Conference Proceedings IEEE Symposium on Security and Privacy · January 1, 2025 Directed Acyclic Graph (DAG) based BFT protocols balance consensus efforts across different parties and maintain high throughput even when some designated parties fail. However, existing DAG-based BFT protocols exhibit long latency to commit decisions, pri ... Full text CiteRecent Grants
CAREER: Scalable Consensus Protocol Design with Accountability and Privacy under Practical Failure Models
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2023 - 2028Disentangling Transaction Privacy and Consensus in Ethereum
ResearchPrincipal Investigator · Awarded by Ethereum Foundation · 2022 - 2027Collaborative Research: SaTC: CORE: Medium: Quicksilver: a Write-oriented, Private, Outsourced Relational Database Management System
ResearchPrincipal Investigator · Awarded by National Science Foundation · 2020 - 2025View All Grants
Education, Training & Certifications
University of Maryland, College Park ·
2018
Ph.D.