System and method for making secure data transmissions

Details System and method for making secure data transmissions System and method for making secure data transmissions

G - Physics

07

F

G07F 19/00 (2006.01) G06Q 20/00 (2006.01)

Patent

CA 2398317

The invention concerns a system for making secure transactions by mail-order purchasing, in particular on the Internet, with delivery of a unique and non-reusable code for each completed transaction. The system involves a third party (20, 50) between the purchaser (10) and the seller (30, 60). Said third party has a table (80) likewise stored in an electronic fill device (70) of the purchaser (10). The third party validates the purchase when the code, issued from the electronic fill device (70) and transmitted by the purchaser, is identical to a code present in the table located at the third party's. Said code advantageously comprises the value of an incremental counter associated with a certification number randomly determined when the electronic fill device (70) is initialised.

L'invention concerne un système de sécurisation des transactions lors d'achat par correspondance, notamment sur Internet, avec délivrance d'un code unique et non réutilisable pour chaque transaction effectuée. Le système fait intervenir un tiers de confiance (20, 50) entre l'acheteur (10) et le marchand (30, 60). Ce tiers de confiance possède une table (80) également stockée dans un boîtier électronique (70) de l'acheteur (10). Le tiers de confiance valide l'achat lorsqu'un code, provenant du boîtier électronique (70) et transmis par l'acheteur, est identique à un code présent dans la table localisée chez ce tiers de confiance. Ce code comprend avantageusement la valeur d'un compteur incrémental associé à un numéro de certification déterminé de façon aléatoire lors de l'initialisation du boîtier (70).

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