| 摘要 |
<p>In a system to effect transactions with a multi-functional card with an integrated circuit, the circuit includes a bank application, assigned to the user's account-keeping bank, and at least one exchange application, assigned to a supplier of services or manufacturer. With the aid of a device communicating with the card, the card-user can load a selectable amount of money into the exchange application. The exchange supplier is provided with an authentic certificate of the amount loaded into the exchange and credited to the account of the exchange supplier, without the secret data necessary for issuing the certificate having to be stored in the exchange application or in the exchange terminal. <IMAGE></p> |
