Dear Colleague,
You are cordially invited to a RISC seminar on **Lattice Cryptanalysis**.
It is organised on the occasion of the upcoming PhD defense of Ludo Pulles and
as a belated celebration of the recent PhD defense of Lynn Engelberts.
The event will take place at CWI Amsterdam on Tuesday, September 22nd, 2026,
in Room L016, starting at 14:00h.
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!
Feel free to forward this invitation to interested colleagues. If you
wish to register to this list at https://projects.cwi.nl/crypto/register.php .
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.
More info at: https://www.universiteitleiden.nl/en/events/2026/09/lattice-cryptography-isomorphisms--dual-attacks
