| 摘要 |
PURPOSE: A method for supplying a disposable credit card number is provided to activate electronic commerce by enabling a user to safely pay the price for a product without the need for issuing a special credit card, and by enabling the user to easily purchase the product through the Internet. CONSTITUTION: A credit card holder registers a number and a password of a credit card. In case that the credit card holder makes a request, a disposable password is issued to the credit card holder. In case that there's a request for authenticating the disposable password or paying a price with the credit card, the credit card is authenticated and the price is paid by the credit card according to conditions determined by issuing the disposable number of the credit card.
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