| 摘要 |
PURPOSE: A credit card secret authentication is provided to increase security for a password and reduce a risk of password outflow through Korean alphabet code using reduced keyboard during payment for a product. CONSTITUTION: When a password inputted, following procedure is performed. A password is registered when a card is made for a financial transaction. The registered password is converted according to need after the card is made. The password is inputted as a secret authentication for confirming whether or not a user is a proper user during processing financial transaction. When he password is inputted, a specific character is displayed and a password outflow is prevented since the girth of the keyboard is covered. |
