| 摘要 |
PROBLEM TO BE SOLVED: To easily perform input operation of a password character string, and to more certainly prevent leakage of the password character string. SOLUTION: When distribution of a login screen is required from a client terminal, a password-inputting moving image including each image part corresponding to an individual character usable in a password as shown in Figure (B)-(F), wherein each display position of the individual image part corresponding to the individual character changes according to a time lapse is generated, a display of the client terminal is made to reproduction-display the moving image, click operation clicking a display position of a circle corresponding to a specific character constituting the password among circles corresponding to the respective characters inside the reproduction-displayed moving image is repeated by turns from the head character of the password, and information showing a click position and operation time in the each-time click operation is received from the client terminal. By deciding the letter to which the image part present in the each-time click position corresponds on the basis of the received information, the inputted password is recognized. COPYRIGHT: (C)2007,JPO&INPIT |
