Updates

Decentralization of Ethereum’s Builder Market has been accepted at IEEE SP, 2025.
Context-Dependent Threshold Decryption is on eprint. Useful for improving the latency of encrypted transactions in atomic broadcast.
A Decentralized Thoughts post series explaining partially synchronous protocols: a post on the core ideas, a post explaining PBFT (Feb 2025)
Sarisht’s work on an inclusion list design for rational parties, AUCIL, is now available on eprint (Feb 2025)
Nibesh’s work on communication and round efficient protocols for parallel broadcast has been accepted at Financial Cryptography 2025 (Jan 2025)

Research

I am generally interested in applied cryptography and blockchains. I am currently focusing on two research topics:
1. Robust and efficient design of blockchain protocols.
2. Efficient privacy-preserving computation.

Teaching

Spring’25: Computer Security (CompSci 351-S25)

Past classes:
Foundations of Blockchains: Fall’22, Fall’24
Computer Security: Fall’20, Fall’21, Spring’22, Spring’24
Blockchain Consensus: Fall’19, Fall’21:
Applied Cryptography: Spring’21

I'm looking for students

I am always looking for highly motivated Ph.D. students. If you are interested in working on any of these topics, then: