APPARATUS AND METHOD FOR INPUTTING PERSONAL IDENTIFICATION NUMBER WITH ENHANCED SECURITY

摘要

According to the present invention, a method for inputting a pin number by recognizing sound corresponding to each number when a personal identification number (PIN) to authenticate a user is inputted, comprises the steps of: arranging from 0 to 9 in a random order; sequentially outputting a piece of sound of number arranged in a random order, every time a target area of a touch pad is touched; selecting a corresponding number as the PIN when a touched state is maintained and slid in the specific direction at the same time while the target area of the touch pad is touched; and rearranging numbers from 0 to 9 in a random order when the PIN is set.