CIRCUIT DE CRYPTOGRAPHIE, PROTEGE NOTAMMENT CONTRE LES ATTAQUES PAR OBSERVATION DE FUITES D'INFORMATION PAR LEUR CHIFFREMENT.

摘要

A cryptography circuit, protected notably against information-leak observation attacks, comprises a functional key kc for executing a cryptography algorithm. It comprises a second key ki unique and specific to the circuit making it possible to protect by masking the functional and confidential key kc or a confidential implementation of the algorithm.