| 摘要 |
PURPOSE: A payment system using a mobile phone is provided to enable a user to pay the price using a mobile phone, and to increase the security by enabling the user to input a password and a resident registration number which the user previously designated, thereby performing a user authentication. CONSTITUTION: A user makes a request for processing the amount of money for payment in a store. A feedback of an authentication number is performed. The amount of money requested from the store is processed. The user carrying a mobile phone purchases a product in the store. After that, the user selects a payment through the mobile phone. The user inputs a password and a resident registration number of the user for authenticating a payment authentication number for a user authentication. In case that the password and the resident registration number inputted from the user are confirmed, the payment is processed. The feedback of the authentication number is performed. A message for confirming the payment is outputted. The payment is completed.
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