Mobile device, user authentication method and user authentication system of mobile device

Abstract

A mobile device is disclosed. The present mobile device comprises: a display for displaying an authentication information input screen for receiving user authentication information when the mobile device is connected to a server providing a service requiring input of the user authentication information; a first communication unit for transmitting, to the server, the user authentication information inputted through the authentication information input screen and first simple authentication information generated in the mobile device; a second communication unit for communicating with an electronic device to receive unique information of the electronic device; and a processor for generating second simple authentication information by using unique information of the mobile device and the unique information of the electronic device, transmitting the second simple authentication information to the server which matches the first simple authentication information to the user authentication information which are matched with each other, and controlling the display to display an authentication result screen provided from the server according to whether or not the first and the second simple authentication information are matched.

Dependencies are inferred from the claim text.