A first electronic device adapted to execute authentication, the first electronic device comprising: a first authentication unit configured to perform authentication with respect to a second electronic device that is adapted to request authentication for controlling the first electronic device, through a first communication mode; and a second authentication unit configured to perform authentication with respect to the second electronic device , through a second communication mode, wherein the first authentication unit is further configured to: transmit first information to be used for controlling the first electronic device to the second electronic device through the first communication mode, when the second electronic device is authenticated, and transfer second information indicating that the second electronic device is authenticated by the first authentication unit, to the second authentication unit, further comprising a controller configured to determine whether the second electronic device is authenticated based on the second information that is transferred to the second authentication unit, wherein when the first electronic device receives a control signal from the second electronic device through the second communication mode, the second authentication unit adapted to determine whether to perform the authentication with respect to the second electronic device based on the second information. a first authentication unit configured to perform authentication with respect to a second electronic device that is adapted to request authentication for controlling the first electronic device, through a first communication mode; and a second authentication unit configured to perform authentication with respect to the second electronic device , through a second communication mode, wherein the first authentication unit is further configured to: transmit first information to be used for controlling the first electronic device to the second electronic device through the first communication mode, when the second electronic device is authenticated, and transfer second information indicating that the second electronic device is authenticated by the first authentication unit, to the second authentication unit, further comprising a controller configured to determine whether the second electronic device is authenticated based on the second information that is transferred to the second authentication unit, wherein when the first electronic device receives a control signal from the second electronic device through the second communication mode, the second authentication unit adapted to determine whether to perform the authentication with respect to the second electronic device based on the second information. transmit first information to be used for controlling the first electronic device to the second electronic device through the first communication mode, when the second electronic device is authenticated, and transfer second information indicating that the second electronic device is authenticated by the first authentication unit, to the second authentication unit, further comprising a controller configured to determine whether the second electronic device is authenticated based on the second information that is transferred to the second authentication unit, wherein when the first electronic device receives a control signal from the second electronic device through the second communication mode, the second authentication unit adapted to determine whether to perform the authentication with respect to the second electronic device based on the second information. <EOS>