Cryptography · Security · Privacy
Research at the intersection of cryptography and cryptocurrencies.
I am a postdoctoral researcher at Princeton University, supervised by Prof. Matt Weinberg. My research focuses on the security and privacy of cryptocurrencies. I especially enjoy practically motivated problems that lead to new cryptographic ideas.
I completed my PhD in Computer Science at Eötvös Loránd University (ELTE) in 2023. Before Princeton, I was a researcher at ELTE and completed research internships at IMDEA Software Institute and a16z crypto.
Research interests
Selected & recent work
2026 · Preprint
Private Delegation of (Non-)Membership Proof Updates in Cryptographic Accumulators
2026 · Preprint
A Tattered Cloak of Invisibility: Measuring Anonymity Loss in Railgun on Ethereum
ACM CCS 2025 · Distinguished Paper Award
Forking the RANDAO: Manipulating Ethereum’s Distributed Randomness Beacon
Featured talks
EthCC[8] · Cannes · 2025 · Video
poqeth: Efficient, post-quantum signature verification on Ethereum
Post-quantum signatures in the EVM.
Stanford Security Seminar · 2025
Manipulating and Fixing the RANDAO, Ethereum's Distributed Randomness Beacon Protocol
Invited seminar at Stanford.
Protocol Berg v2 · Video
Forking the RANDAO: Manipulating Ethereum’s Distributed Randomness Beacon
Protocol Berg v2.
ETHIstanbul 2025 · Video
Trustless Consensus Manipulation Through Bribing Contracts
ETHIstanbul 2025.
Students
I have advised B.Sc. and M.Sc. theses at ELTE on cryptography, blockchain security, privacy, and related topics.