A reduction from Hawk to the principal ideal problem in a quaternion algebra

Quand : 4 juin 2026 à 14:00

Où : IHP, 11 rue Pierre et Marie Curie, Paris 5e

Organisé par : Institut Henri Poincaré

Hawk is a signature published in 2023, whose security is based on a variant of the Lattice Isomorphism Problem, called module-LIP. The publication of this signature sparked an interest in the resolution of module-LIP. In this talk, we present a polynomial time reduction from this problem, to another mathematical problem that involves quaternion algebras. This result comes from a 2025 paper of ours