Fault attack recovers deterministic CSIDH and OSIDH-LD keys
A binary search over faulted lane masks needs at most 297 queries for OSIDH-LD and 222 for CSIDH-512-sized keys.
Stories per day · 30 days
3 stories, newest first · one card per story
Stories tagged #isogeny
Post-quantum group actions from oriented superspecial abelian varieties
The paper gives tools for CM orientations and Shimura class group actions, including a CM form of Kani's lemma.
The Supersingular Isogeny Problem in Time and Memory $p^{1/3+o(1)}$, Unconditionally
An unconditional algorithm solves the supersingular isogeny problem in p to the 1/3-plus-little-o time and memory.