Smart card for providing financial transaction by using virtual card number
A system, a method, and a program for providing a financial transaction by a virtual card number, a virtual card number generating device, and a virtual card number verifying device are provided. The method includes receiving, by a virtual card number verifying means, a virtual card number provided from a virtual card number generating means, extracting, by the virtual card number verifying means, a plurality of detailed codes included in the virtual card number, searching, by the virtual card number verifying means, for a storage location of a real card number based on the plurality of detailed codes, and proceeding, by the virtual card number verifying means, with the financial transaction or requesting, by the virtual card number verifying means, to proceed with the financial transaction using the real card number extracted from the storage location.
1. A smart card for providing a financial transaction by using a virtual card number, the smart card comprising:
a display including at least one of a liquid crystal display,
a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and an electronic paper;
a printed circuit board (PCB);
an integrated circuit (IC) chip mounted on the PCB;
a processor,
wherein the processor is configured to:
generate a virtual card number by combining a plurality of detailed codes, wherein:
the plurality of detailed codes are selected according to a predetermined rule; and
the plurality of detailed codes comprises:
a first code indicating a start point for searching for a storage location of a real card number; and
a second code indicating a search path from the start point to the storage location of the real card number according to a specific search scheme;
generate the first code and the second code, respectively, by using a plurality of detailed code generation functions included in the virtual card number generation function, and automatically change the first code and the second code, respectively, as a predetermined time interval elapses; and
visually output the virtual card number by controlling the display to display the virtual card number, wherein the display comprises at least one organic light emitting diode (OLED) and further wherein the display is configured to automatically update the virtual card number displayed on the display in real time by modifying the at least one OLED in response to the change of the first code and the second code, respectively, as the predetermined time interval elapses; and
a non-transitory machine readable medium storing a virtual card number generation function and a rule of updating a virtual card number generation function.
2. The smart card of claim 1 , wherein the virtual card number further comprises a virtual security code corresponding to digits of a card security code.
3. The smart card of claim 1 , wherein, when the first code or the second code of N (N is a natural number) digits is generated with M (M is a natural number) characters, each of the plurality of detailed codes is matched to different M N codes, and
wherein the virtual card number generation function comprises a first function or a second function for sequentially providing the first code or the second code depending on a specific matching rule.
4. The smart card of claim 3 , wherein the first code is generated based on the predetermined time interval, which elapses from an initial time started to issue the real card number, and
wherein the second code is generated based on the predetermined time interval, which elapses from a time when a separate real card number is issued.
5. The smart card of claim 1 , further comprises:
a fixed code printed on a surface of the smart card,
wherein the virtual card number is consisted of the fixed code and a remaining code, and
wherein the display is configured to display the remaining code.