| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To ensure safely in inputting a personal identification number even if the numbers of the PIN code are stolen during the input. <P>SOLUTION: A personal identification number input device for inputting a personal identification number includes: a numerical keypad 117 with 10 keys for 0-9 arranged thereon to be used for inputting numbers; a random number generation part 124 which randomly rearranges the numbers of 0-9 by generating random numbers; a storage part 122 which stores, with respect to the number arranged on each key of the keypad, a rearranged number layout state in which the numbers randomly rearranged by the random generation part are disposed as a table; a screen display part 112 which displays a number layout image having the same key arrangement as the keypad; and a control part 121 which displays, with respect to each key of the number layout image by the screen display part, randomly rearranged numbers arranged in the rearranged number layout state in the table of the storage part, and decides, with respect to numbers input through the keypad, the randomly rearranged numbers disposed in the rearranged number layout state in the table of the storage part as input of the personal identification number. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
