An information card includes two display panels as a user interface, which constitute a card body, and display visible information constituted by a portrait image and ID information. An internal memory is incorporated in a card body, for storing verification information of that the visible information has been verified externally. Furthermore, a mode selector selectively sets an employee ID card mode or driver license mode. The display panels change over the visible information according to the employee ID card mode or driver license mode. Also, an interface is accessed by a rewriting digital still camera to rewrite the portrait image. The interface receives an encrypted form of the image data from the digital still camera. A microcomputer decrypts the image data.