Communication method and device

H - Electricity – 04 – L

Patent

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Details

H04L 9/30 (2006.01) H04L 9/32 (2006.01) H04Q 7/38 (2006.01) H04Q 7/32 (2006.01)

Patent

CA 2191668

A system (100) and method of improving activation security allows a remote device (104) to identify that there is a difference between a first signal transmitted by a central site (102) and a first signal received by the remote device. A derived number is used. The derived number can be displayed to the user for verbal verification by the user, or the derived number can be used internally of the remote device, or the central site, for verification that is transparent to the user. A significant amount of security is added without substantially altering the communication protocol.

n système (100) et une méthode pour améliorer la sécurité d'activation permettent à un dispositif à distance (104) de constater une différence entre un premier signal transmis par un site central (102) et un premier signal reçu par le dispositif à distance. Un numéro dérivé est utilisé. Le numéro dérivé peut être affiché à l'intention de l'utilisateur pour vérification verbale par celui-ci, ou le numéro dérivé peut être utilisé de façon interne par le dispositif à distance ou le site central en vue d'une vérification qui est transparente pour l'utilisateur. La sécurité est accrue de façon notable sans que ne soit modifié substantiellement le protocole de communication.

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