| 摘要 |
PURPOSE: Provided is to prevent waste of recourses caused by frequent replaced of security cards and to prevent the hacking of security card number. CONSTITUTION: In a memory of a mobile device (300), a virtualization client software used for a virtualization process for a security card number is downloaded (S301). A virtualization key server (340) transmits a virtual key value needed for the process to the mobile device (S340). The mobile device receives at least one number among the security card numbers (S307). Using the transmitted virtual key value, at least one number received is converted into a character (S308). A PC (310) which is performing internet baking receives the converted character (S309). From the PC to an internet baking server (302), the converted character is transmitted into the restored number (S310,S311). The internet baking server checks if it is valid or not for the internet baking based on the restored number or the converted character received from the PC (S312). [Reference numerals] (300) Mobile device; (305) Virtualization key delivery; (306) Internet banking launching; (320) Internet banking server; (330) Virtualization key DB; (340) Virtualization key server; (S301) Virtualization client download; (S302) Virtualization update needs determination; (S303) Virtualization key request; (S304) Virtualization key response; (S307) Security card original number input; (S308) Virtualized security card number creation; (S309) Virtualized security card number input; (S310) Transmission; (S311) Virtualization key; (S312) Identicalness determination; (S313) Result value transmission |
