Aesun Park

TL;DR: The first Simple Power Analysis (SPA) attack on the ring-LWE encryption scheme is proposed, which exploits the chosen ciphertext and the vulnerability associated with the modular addition, which is applicable when a ring- lwe encryption scheme operates on 8-bit microcontroller devices.

TL;DR: This is the first result on the security of multivariate quadratic equations-based signature schemes using only CPA, and can be applied to Rainbow-like multi-layered schemes and UOV-like single layer schemes submitted to NIST for Post-Quantum Cryptography Standardization.

TL;DR: This is the first result on the security of multivariate quadratic equations-based signature schemes using only CPA, and can be applied to Rainbow-like multi-layered schemes and UOV-like single layer schemes submitted to NIST for Post-Quantum Cryptography Standardization.

TL;DR: This study proposes a chosen-ciphertext side-channel attack against a lattice-based key encapsulation mechanism (KEM), the third-round candidate of the national institute of standards and technology (NIST) standardization project.

TL;DR: A multiple-trace attack which enables to completely recover accurate secret indices and a singletrace attack which can even work when using ephemeral keys or applying Rossi et al.