DETECTION DEVICE, DETECTION METHOD, AND DETECTION PROGRAM

DETECTION DEVICE, DETECTION METHOD, AND DETECTION PROGRAM

This detection device (10) acquires the position information and file size of a file that is a falsification detection target. Then, the detection device (10) evaluates changes in the acquired position information or file size, and, if there was a change in the position information or file size, det...

Ausführliche Beschreibung

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