Method for controlling financial chip of payment device
First Claim
1. A method for controlling a financial chip of a payment device, the method being performed by a hardware processor of the payment device that connects using long-distance wireless communication with a server of a first card company and a server of a second card company by a wireless network, the method comprising:
- dividing storage of a memory of the financial chip into multiple storage areas and assigning different sequence numbers to the respective divided storage areas;
receiving, via the wireless network using the long-distance wireless communication, a first request and first credit card information from the first card company server for recording of the first credit card information to the financial chip;
assigning a first sequence number of the assigned sequence numbers to the first card company server;
recording the first credit card information, an application for financial transactions issued by the first card company server, and an identifier for the application in a first storage area of the multiple storage areas identified by the first sequence number;
receiving a first derivation key generated by the first card company server using the identifier for the application, the first sequence number, and a card company code for the first card company server;
recording the first derivation key in the first storage area;
receiving, via the wireless network using the long-distance wireless communication, a second request and second credit card information from the second card company server for recording of the second credit card information to the financial chip;
providing via the wireless network using the long-distance wireless communication card arrangement information including information about the first sequence number, the first derivation key, and a second sequence number that identifies a second storage area of the multiple storage areas, the second sequence number being the next sequence number to the first sequence number, to the second card company server;
receiving a second derivation key generated by the second card company server using the first derivation key and the second sequence number; and
recording the second derivation key and the second credit card information in the second storage area as available for provision to a third card company server.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a method for controlling a financial chip of a payment device, in which information for multiple cards is stored in a single USIM chip, to enable the payment device to use credit cards from multiple card companies as a payment means. The method includes: dividing storage of the memory of the financial chip into multiple sections and allocating a turn to each storage section; allocating a first turn to the first card company server and recording information on the credit card issued by the first card company server, an application for financial transactions, and an identifier for the application when the first card company server and the second card company server sequentially make a request for the record of credit card information to the financial chip; and providing card arrangement information including information on the first turn and a second turn to the second card company server.
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Citations
11 Claims
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1. A method for controlling a financial chip of a payment device, the method being performed by a hardware processor of the payment device that connects using long-distance wireless communication with a server of a first card company and a server of a second card company by a wireless network, the method comprising:
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dividing storage of a memory of the financial chip into multiple storage areas and assigning different sequence numbers to the respective divided storage areas; receiving, via the wireless network using the long-distance wireless communication, a first request and first credit card information from the first card company server for recording of the first credit card information to the financial chip; assigning a first sequence number of the assigned sequence numbers to the first card company server; recording the first credit card information, an application for financial transactions issued by the first card company server, and an identifier for the application in a first storage area of the multiple storage areas identified by the first sequence number; receiving a first derivation key generated by the first card company server using the identifier for the application, the first sequence number, and a card company code for the first card company server; recording the first derivation key in the first storage area; receiving, via the wireless network using the long-distance wireless communication, a second request and second credit card information from the second card company server for recording of the second credit card information to the financial chip; providing via the wireless network using the long-distance wireless communication card arrangement information including information about the first sequence number, the first derivation key, and a second sequence number that identifies a second storage area of the multiple storage areas, the second sequence number being the next sequence number to the first sequence number, to the second card company server; receiving a second derivation key generated by the second card company server using the first derivation key and the second sequence number; and recording the second derivation key and the second credit card information in the second storage area as available for provision to a third card company server. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification