KEYBOARD HACKING PROTECTION METHOD USING THE VIRTUAL KEYBOARD

摘要

A method for preventing keyboard hacking with a virtual keyboard is provided to prevent hacking of mouse input coordinates while providing convenience maximally to enable a user to find a key easily by changing a coordinate value of each key while keeping a key arrangement, as the virtual keyboard is rotated or enlarged in operation. It is detected that a focus is moved to a text box of a browser(S100). A rotating angle of a virtual keyboard is set up(S110). The rotated virtual keyboard is generated by rotating the virtual keyboard according to the rotating angle(S120). Mouse input is detected when a user clicks keys of the rotated virtual keyboard(S130). An input key value of the rotated virtual keyboard is calculated by coordinates of the detected mouse input(S140). A corresponding character is output in the text box by transmitting the calculated input key value to the web browser(S150). It is determined whether virtual keyboard input is terminated(S160). The virtual keyboard is terminated when the virtual keyboard input is terminated(S170).