Method of securely storing and retrieving monetary data

Details Method of securely storing and retrieving monetary data Method of securely storing and retrieving monetary data

G - Physics

07

F

G07F 7/10 (2006.01) G07F 7/08 (2006.01)

Patent

CA 2279248

A method of securely storing and retrieving monetary values, such as electronic cheques and electronic coins, is disclosed. In an interactive protocol between an issuer (e.g. a bank terminal) and a recipient (e.g. a smart card) of electronic money, authentication values (A, B, ...) are produced and are stored in an external storage (e.g. an electronic wallet). At a later stage, the protocol is repeated between the recipient and the storage to securely retrieve the stored authentication values.

La présente invention concerne un procédé de stockage et d'extraction en toute sécurité de valeurs monétaires, telles que des chèques électroniques et des pièces électroniques. Selon un protocole interactif entre un émetteur (par exemple, un terminal bancaire) et un bénéficiaire (par exemple, une carte intelligente) d'argent électronique, des valeurs d'authentification (A, B, ...) sont produites et stockées dans un stockage externe (par exemple, un portefeuille électronique). A un stade ultérieur, le protocole est répété entre le bénéficiaire et le stockage de façon à extraire en toute sécurité les valeurs d'authentification stockées.

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