Dear Colleagues,
We are excited to announce a special edition of our next RISC seminar, on the occasion of the upcoming PhD defense of Ludo Pulles and as a belated celebration of the recent PhD defense of Lynn Engelberts.
Topic: "Lattice Algorithms, Isomorphisms, and Cryptographic Hardness"
The schedule is as follows:
14:00 - Ludo Pulles: HAWK: Having Automorphisms Weakens Key
14:30 - Lynn Engelberts: A subexponential-time algorithm for solving the Short Integer Solution problem
15:00 - Coffee break
15:30 - Cong Ling: Spinor Genus and the Lattice Isomorphism Problem
16:00 - Phong Nguyen: Adelic Reduction of Module Lattices
16:30 - Thomas Debris: Worst-to-Average-Case Hardness of Sparse-LPN via Biased Fourier Analysis
See the RISC web page https://projects.cwi.nl/crypto/risc.php for the abstracts.
See you then and there!
Best regards,
— Léo Ducas and Ronald Cramer
Post-scriptum. Ludo will defend his PhD thesis, Lattice Cryptography:
Isomorphisms & Dual Attacks, on Wednesday, September 23rd, 2026, at 16:00h in the Academy Building, Rapenburg 73, 2311 GJ Leiden.
