Selection of a secret key at random from a set of possible keys for use in personalization of an electronic component, especially a chip card so that protection against side channel attacks or crypto analysis is improved

摘要

Method for generation of secret secure keys for a cryptographic algorithm has the following steps: extraction of a set of possible keys; extraction of a sub-set of keys; and generation of secret keys from a sub-set of keys. The invention also relates to a corresponding device for personalization of an electronic component using a secret key chosen at random from a sub-set of possible keys using the inventive method.