H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/32 (2006.01) G07F 7/10 (2006.01)
Patent
CA 2271989
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.
La présente invention concerne le domaine de la signature et/ou de l'authentification de messages électroniques dans lequel un algorithme de calcul utilise des clefs numériques (N, e, d) implantées sur des cartes à puce; les clefs comportant notamment un nombre entier appelé module N. Le procédé selon l'invention prévoit que plusieurs clefs (N, e, d), (N, e', d') comportent un module (N) identique et que ces clefs seront consacrées à la signature, la vérification et/ou à l'authentification de messages. L'invention s'applique notamment à la reconnaissance de l'utilisateur de clefs de la carte ou à la reconnaissance des services utilisées par un ou par plusieurs utilisateurs.
Levy-Dit-Vehel Francoise
Naccache David
Stern Jacques
Gemplus
Robic
LandOfFree
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