APPAREIL ET PROCÉDÉ POUR EFFECTUER UNE OPÉRATION SÉCURISÉE CONTRE UNE ATTAQUE PAR CANAUX AUXILIAIRES

摘要

An apparatus (100) and method for performing operation being secure against side channel attack are provided. The apparatus and method generate values equal to values obtained through an exponentiation operation or a scalar multiplication operation of a point using values extracted from previously generated parameter candidate value sets and an operation secure against side-channel attack, thereby improving security against side-channel attack without degrading performance.