CREDIT CARD CERTIFICATION METHOD, CARD CERTIFICATION EQUIPMENT, AND RECORDING MEDIUM IN WHICH CARD CERTIFICATION PROGRAM IS RECORDED

摘要

PROBLEM TO BE SOLVED: To prevent certainly an illegal use of a credit card except the person himself or an illegal use of a counterfeit credit card. SOLUTION: A credit card certification equipment 5 retrieves a data-table strong credit card information using a card number of a credit cared 2 which is sent from a card-reader device 3 as a keyword. In the case that a record which has the proper cared number exists in the data-table and furthermore the credit card information registered in the record is valid, the card certification equipment 5 extracts the terminal identification number registered beforehand in the record and at the same time the above equipment 5 transmits the prescribed message inquiring the intention to use the certification of the credit card to the proper terminal identification number. When a prescribed response is returned from a communication terminal (for example, a cellular telephone 6a) which has the proper terminal identification number, the above equipment 5 issues the notice of success in the certification to the above card-reader device 3.