METHOD AND SYSTEM FOR SETTLING FINANCIAL TRANSACTION WITH MOBILE COMMUNICATIONS PORTABLE TERMINAL CONTAINING FINANCIAL INFORMATION

摘要

A method and system for settling financial transactions with a mobile communications terminal (10) containing financial information is disclosed. Financial information such as a card number and a valid date is encrypted by using a customer's inherent electronic wallet management number such as a secret number at the time of application of a card issuance, and then the encrypted financial information is input to a mobile communications terminal (10) designated by a customer, directly or via a communications network. When a customer wishes to settle financial transactions through the mobile communications terminal (10), he or she inputs his or her electronic wallet management number to optically transmit the encrypted financial information and electronic wallet management number to a POS terminal (20) or card inquiry machine in an affiliated store. The POS terminal (20) or card inquiry machine which has received the optically transmitted financial information and electronic wallet management number decodes the encrypted financial information by using the received electronic wallet management number. Thus, unless customer's electronic wallet management number such as a secret number is exposed illegally, no one who knows an encryption algorithm can use the customer's financial information illegally.