Regarding an electronic device capable of registration in order to maintain linkage relationships with other devices and the like, simplification of device registration is provided by eliminating the need of input of the secret identification numbers or the like. The electronic device includes a device information acquisition unit obtaining device information from a counterpart device which is a registration target; a storage unit storing device information representative of the registration target; and a secret identification information generation unit comparing the device information stored in the storage unit with the device information obtained from the counterpart device and generating secret identification information applied to the counterpart device if both of the device information are identical.