Authentication method, e.g. for use with a smart card, whereby a secret quantity or key is delivered to an integrated circuit forming part of an external device or reader used in authentication

摘要

Method for delivery of a secret quantity or key (s) to an integrated circuit forming part of an external device or reader used in an authentication process. The secret quantity is a function of a signature of at least one memory (4, 10, 11, 12) associated with an integrated circuit, for verification of the integrity of the memory. A signature comprises a binary word representative of the contents of one or more integrated circuit memories. The invention also relates to a corresponding authentication method and integrated circuit.