Procedure for accessing a service in a data communication...

H - Electricity – 04 – L

Patent

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H04L 9/32 (2006.01) G06F 21/20 (2006.01)

Patent

CA 2301938

A procedure and a data communication system in which a service provider provides to a remote user of a service a set of expendable passwords for use by the user in accessing the service via a telecommunication and/or data network. The user's terminal device is provided with means for automatically transmitting a password at log-on to the service, and a server to which the terminal device sets up a connection includes means for identifying the password and for allowing or denying access to the service on the basis of the supplied password. The terminal device further includes means for storing a set of passwords and for selecting, at log-on to a predetermined service, the correct password from the stored set of passwords for automatic addition of the password to a connection setup signal transmitted from the terminal device to the server.

L'invention se rapporte à une procédure et à un système de communication de données dans lequel un fournisseur de services offre à l'usager d'un service un ensemble de mots de passe évolutifs que l'utilisateur peut utiliser pour accéder au service par l'intermédiaire d'un réseau de télécommunications et/ou de données. Le système comprend un dispositif terminal d'utilisateur doté d'un moyen conçu pour transmettre un mot de passe au moment de l'accès au service, et un serveur avec lequel le dispositif terminal établit une connexion et qui possède un moyen d'identification du mot de passe et d'autorisation/refus de l'accès au service sur la base du mot de passe fourni. Le dispositif terminal comporte un organe de stockage d'un ensemble de mots de passe et de sélection du bon mot de passe dans l'ensemble stocké de mots de passe au moment de l'accès à un service préétabli de manière à permettre l'addition automatique du mot de passe à un signal d'établissement de la connexion devant être transmis du dispositif terminal vers le serveur.

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