Jincheol Ha

Paper 2023/1474 , Samsung SDS , Korea Advanced Institute of Science and Technology , Korea Advanced Institute of Science and Technology , Samsung SDS Post-quantum signature schemes based on the MPC-in-the-Head (MPCitH) paradigm are recently attracting significant attention as their security solely depends on the one-wayness of the underlying primitive, providing diversity for the hardness assumption in post-quantum cryptography. Kim et al.

Paper 2022/537 Rubato: Noisy Ciphers for Approximate Homomorphic Encryption (Full Version) Abstract A transciphering framework converts a symmetric ciphertext into a homomorphic ciphertext on the server-side, reducing computational and communication overload on the client-side. In Asiacrypt 2021, Cho et al. proposed the RtF framework that supports approximate computation.

Paper 2022/1387 AIM: Symmetric Primitive for Shorter Signatures with Stronger Security , Samsung SDS , Korea Advanced Institute of Science and Technology , Korea Advanced Institute of Science and Technology , Korea Advanced Institute of Science and Technology , Samsung SDS , Sungshin Women's University , Samsung SDS , Samsung SDS , Samsung SDS , Samsung SDS , Korea Advanced Institute of Science and Technology Abstract Post-quantum signature schemes based on the MPC-in-the-Head~(MPCitH)...