| 摘要 |
<p>The invention concerns the signing and/or authenticating of electronic messages in which a computing algorithm uses digital keys (N, e, d) implanted on chip cards; the keys comprising in particular an integer called module N. The method is characterised in that several keys (N, e, d), (N, e', d') comprise an identical module (N) and that these keys will be dedicated to the signature, verification and/or authentication of messages. The invention is particularly useful for identifying the user of the card keys or the identification of the services used by one or several users.</p> |
