DETECTION DEVICE, DETECTION METHOD, AND DETECTION PROGRAM

DETECTION DEVICE, DETECTION METHOD, AND DETECTION PROGRAM

A detection device (10) acquires position information and a file size of a falsification detection target file. Then, the detection device (10) determines a change in the acquired position information or file size, and in a case where there is a change in the position information or file size, detec...

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Bibliographische Detailangaben
Hauptverfasser: NAKAJIMA, Yoshiaki, TAKIGUCHI, Hiroyoshi, CHIBA, Nobuhiro, KOYAMA, Takaaki
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A detection device (10) acquires position information and a file size of a falsification detection target file. Then, the detection device (10) determines a change in the acquired position information or file size, and in a case where there is a change in the position information or file size, detects falsification of the falsification detection target file.