Comprising the authenticity judging device for determining the authenticity of an electronic device, provided in the authenticity determination apparatus or electronic device, and a detection device for detecting information of value to influence the environment information features, authenticity determining apparatus, identification a stimulus generator for generating an information stimulus to be applied to the output unit, and the allowable range calculation unit based on the value of information of the detected environment by detecting device calculates the allowable range of error of the identification information with respect to the reference value, the value of the identification information output from the identification information output unit for stimulation generation unit has generated stimulation, is compared with the tolerance permissible range calculation unit is calculated, if the value of the identification information is within an allowable range determines the electronic device is to be a genuine, provide the authenticity determination system.
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