MASSIMO OSTUZZI
CRYPTANALYSIS GROUP
Address: Universitätsstr. 140, Faculty of Computer Science
Ruhr-University Bochum
44801 Bochum
Germany
My Ph.D. is funded by the Marie Curie Doctoral Network Quantum Safe Internet, QSI.
Office: MC Building, 0.31
Office Hours: by arrangement
E-mail: massimo(dot)ostuzzi(at)rub(dot)de
Website: https://maxostuzzi.github.io
Teaching
- Probabilistic Algorithms (Winter23, Summer24)
- Seminar on Randomised Algorithms (Summer24)
- Cryptography (Winter24)
- Implementing Post-Quantum Standards (Winter24)
- Public-Key Cryptanalysis I (Summer26)
- Advanced Quantum Information and Computation (Summer25)
Publications
I’m interested on post-quantum public-key cryptanalysis.
-
Pseudo-Oil Subspaces and the Geometry of Underdetermined MQ Problems, submitted
Massimo Ostuzzi -
Just Guess: Improved (Quantum) Algorithm for the Underdetermined MQ Problem, Eurocrypt 2026
Alexander May, Massimo Ostuzzi, Henrik Ressler -
Snake Mackerel: An Isogeny-Based AKEM Leveraging Randomness Reuse, Preprint
Jonas Janneck, Jonas Meers, Massimo Ostuzzi, Doreen Riepel -
Multiple Group Action Dlogs with(out) Precomputation, Conference of Public Key Cryptography (PKC) 2025
Alexander May, Massimo Ostuzzi