A network of electronic appliance divided into a plurality of network units, comprising: a plurality of stem servers (400, 1400, 2400, 3400); and a plurality of peripheral devices (410, 420, 430, 440, 450), wherein each of the stem servers (400, 1400, 2400, 3400) includes at least a passcode and a list of registration codes (202, 403) formed with a plurality of the registration codes (202, 403) corresponding to each of the peripheral devices (410, 420, 430, 440, 450) connected to the stem server (400, 1400, 2400, 3400), and the registration codes (202, 403) are generated in response to the passcodes by using intrinsic physical randomness of each of the peripheral devices (410, 420, 430, 440, 450), and are stored in the stem server (400, 1400, 2400, 3400) in advance, wherein each of the peripheral devices (410, 420, 430, 440, 450) carries a different chip identification device sending output signals to the stem server (400, 1400, 2400, 3400) in response to the passcodes received from the stem server (400, 1400, 2400, 3400), and the output signals are generated based on the intrinsic physical randomness of each of the peripheral devices (410, 420, 430, 440, 450), wherein the stem server (400, 1400, 2400, 3400) compares each of the output signals with the list of the registration codes (202, 403), and determines a certification of each of the peripheral devices (410, 420, 430, 440, 450), wherein the network of electronic appliance is characterized in that: each of the stem servers (400, 1400, 2400, 3400) of the network conducts an inspection process, wherein the inspection process includes a step of reading internal memories of the peripheral devices (410, 420, 430, 440, 450) connecting to the stem server (400, 1400, 2400, 3400), a step of comparing with the passcodes stored in the stem server (400, 1400, 2400, 3400), a step of determining whether identical codes are present, if not present, determining as certificated, if present, further inspecting whether identical codes are present among the registration codes (202, 403) in the list of registration codes (202, 403) stored in the stem server (400, 1400, 2400, 3400), if not present, determining as certificated, if present, determining as uncertificated, wherein the inspection process is conducted on all of the peripheral devices (410, 420, 430, 440, 450) connected to the stem server (400, 1400, 2400, 3400). a plurality of stem servers (400, 1400, 2400, 3400); and a plurality of peripheral devices (410, 420, 430, 440, 450), wherein each of the stem servers (400, 1400, 2400, 3400) includes at least a passcode and a list of registration codes (202, 403) formed with a plurality of the registration codes (202, 403) corresponding to each of the peripheral devices (410, 420, 430, 440, 450) connected to the stem server (400, 1400, 2400, 3400), and the registration codes (202, 403) are generated in response to the passcodes by using intrinsic physical randomness of each of the peripheral devices (410, 420, 430, 440, 450), and are stored in the stem server (400, 1400, 2400, 3400) in advance, wherein each of the peripheral devices (410, 420, 430, 440, 450) carries a different chip identification device sending output signals to the stem server (400, 1400, 2400, 3400) in response to the passcodes received from the stem server (400, 1400, 2400, 3400), and the output signals are generated based on the intrinsic physical randomness of each of the peripheral devices (410, 420, 430, 440, 450), wherein the stem server (400, 1400, 2400, 3400) compares each of the output signals with the list of the registration codes (202, 403), and determines a certification of each of the peripheral devices (410, 420, 430, 440, 450), wherein the network of electronic appliance is characterized in that: each of the stem servers (400, 1400, 2400, 3400) of the network conducts an inspection process, wherein the inspection process includes a step of reading internal memories of the peripheral devices (410, 420, 430, 440, 450) connecting to the stem server (400, 1400, 2400, 3400), a step of comparing with the passcodes stored in the stem server (400, 1400, 2400, 3400), a step of determining whether identical codes are present, if not present, determining as certificated, if present, further inspecting whether identical codes are present among the registration codes (202, 403) in the list of registration codes (202, 403) stored in the stem server (400, 1400, 2400, 3400), if not present, determining as certificated, if present, determining as uncertificated, wherein the inspection process is conducted on all of the peripheral devices (410, 420, 430, 440, 450) connected to the stem server (400, 1400, 2400, 3400).