2 papers
cs.CR2026
Reaction Attack on CKKS Deployments with Asymptotically Optimal Query Complexity
Song Bian, Hyeongmin Choe, Jiseung Kim +1
We study a protocol-level reaction leakage in CKKS deployments where public coefficient-to-slot (C2S) evaluation keys are combined with a client's 1-bit validity response. Under th…
math.NT2026
Adelic reduction of module lattices
Henry Bambury, Seungki Kim, Changmin Lee +1
We give a strict generalization of the LLL algorithm over number fields, based on the reduction theory of $\GL(n)$ over the adele ring of a number field. Our algorithm is free of h…