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
Context-Dependent Threshold Decryption and Its Applications
Conference Lecture Notes in Computer Science · January 1, 2026 In a threshold decryption system, a secret key is split across a number of parties so that any threshold of them can decrypt a given ciphertext. We introduce a new concept in threshold decryption called a decryption context, which is an additional argument ... Full text CiteCommunication and Round Efficient Parallel Broadcast Protocols
Conference Lecture Notes in Computer Science · January 1, 2026 This work focuses on the parallel broadcast primitive, where each of the n parties wish to broadcast their ℓ-bit input in parallel. We consider the authenticated model with PKI and digital signatures that is secure against t Full text CiteOptimistic, 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 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
University of Maryland, College Park ·
2018
Ph.D.