My name is Michele Orrù (@mmaker). I am a postdoctoral researcher at UC Berkeley, under the supervision of Alessandro Chiesa. Before, I was a PhD student at École Normale Supérieure, under the supervision of Georg Fuchsbauer. I completed my graduate work in math at the University of Trento.

I am interested in zero-knowledge proofs, and more broadly in cryptography. My research includes building authentication mechanisms that preserve user privacy and anonymity. In the past, I have contributed to Python, Debian, and Tor.


  • Cryptography - ESILV
  • Numerical Python - CPES L3
  • Python - CPES L1
Students: Loreleï Lankester (PSL University, undergrad.), Anita Dürr (PSL Univeristy, undergrad.), Matthias Trannoy (PSL University, undergrad.)


  • A proposal for the standardization of ∑-protocols
    with S. Krenn. 4th ZKProof Workshop. [PDF] [Talk]
  • On the (in)security of ROS,
    with F. Benhamouda, T. Lepoint, J. Loss, M. Raykova. EUROCRYPT 2021. [ePrint] Best paper award!
  • Efficient Anonymous Tokens with Private Metadata Bit,
    with B. Kreuter, T. Lepoint, M. Raykova. CRYPTO 2020. [ePrint] [Talk]
  • Aggregate cash systems: A cryptographic investigation of Mimblewimble,
    with G. Fuchsbauer, Y. Seurin. EUROCRYPT 2019. [ePrint] [Talk]
  • Lattice-Based zk-SNARKs from SSPs,
    with R. Gennaro, M. Minelli, A. Niţulescu. ACM CCS 2018. [ePrint] [Talk]
  • Non-Interactive Zaps of Knowledge,
    with G. Fuchsbauer. ACNS 2018. [ePrint] Best student paper!
  • Homomorphic Secret Sharing: Optimizations and Applications,
    with E. Boyle, G. Couteau, N. Gilboa, Y. Ishai. ACM CCS 2017. [ePrint]
  • Actively Secure 1-out-of-N OT Extension with Application to Private Set Intersection,
    with E. Orsini, P. Scholl. CT-RSA 2017. [ePrint]
Fig 01. This is me. I'm also keeping a list of quotes.