Joseph Bonneau

I teach and research security engineering and applied cryptography. I'm currently most interested in verifiable lotteries, distributed randomness, cryptocurrencies, applications of cryptographic proofs, secure messaging protocols and HTTPS. I'm co-author of a textbook on cryptocurrencies which you can read for free online.

Selected publications

Merkle Mountain Ranges are Optimal: On witness update frequency for cryptographic accumulators
J. Bonneau, J. Chen, M. Christ and I. Karantaidou. CRYPTO 2025.
Good Things Come to Those Who Wait: Dishonest-Majority Coin-Flipping Requires Delay Functions
J. Bonneau, B. Bünz, M. Christ and Y. Efron. Eurocrypt 2025.
NOPE: Strengthening domain authentication with zero-knowledge proofs
Z. DeStefano, J. J. Ma, J. Bonneau and M. Walfish. SOSP 2024.
Atomic and Fair Data Exchange via Blockchain
E. Nusret Tas, I. András Seres, Y. Zhang, M. Melczer, M. Kelkar, J. Bonneau and V. Nikolaenko. ACM CCS 2024.
Cornucopia: Distributed randomness beacons at scale
M. Christ, K. Choi and J. Bonneau. AFT 2024.
Zombie: Middleboxes that Don’t Snoop
C. Zhang, Z. DeStefano, A. Arun, J. Bonneau, P. Grubbs and M. Walfish. NSDI 2024.
SoK: Distributed Randomness Beacons
K. Choi, A. Manoj and J. Bonneau. IEEE Security & Privacy (Oakland) 2023.
Bicorn: An optimistically efficient distributed randomness beacon
K. Choi, A. Arun, N. Tyagi and J. Bonneau. FC 2023.
Short-lived zero-knowledge proofs and signatures
A. Arun, J. Bonneau and J. Clark. Asiacrypt 2022.
VeRSA: Verifiable Registries with Efficient Client Audits from RSA Authenticated Dictionaries
N. Tyagi, B. Fisch, A. Zitek, J. Bonneau and S. Tessaro. ACM CCS 2022.
Zero-Knowledge Middleboxes
P. Grubbs, A. Arun, Y. Zhang, J. Bonneau and M. Walfish. USENIX Security 2022.
Verifiable Delay Functions
D. Boneh, J. Bonneau, B. Bünz and B. Fisch. CRYPTO 2018.
CONIKS: Bringing Key Transparency to End Users
M. S. Melara, A. Blankstein, J. Bonneau, M. J. Freedman and E. W. Felten. USENIX Security 2015.