| 摘要 |
A photographic subject authenticating device, a portable telephone, a photographic subject authenticating method and a photographic subject authenticating program are able to improve reliability of security with respect to disguise. Therefore, a controller of a photographic subject authenticating device for performing authentication processing for authenticating a photographic subject on the basis of a photographic image provided by photographing the photographic subject by photographing is constructed so as to execute authentication repeating processing for also repeatedly executing the authentication processing after it is judged as in conformity by the authentication processing; and timing determination processing for determining repetitious execution timing so as to become irregular timing.
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