Digital data false alteration detection program and digital data false alteration detection apparatus
A digital data false alteration detection program causes a computer to execute (a) a step (S) of dividing digital data into a plurality of smaller block data, (b) a step (S) of extracting noise inherent to a digital data acquisition device for each of the small block data, (c) a step (S) of calculat...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A digital data false alteration detection program causes a computer to execute (a) a step (S) of dividing digital data into a plurality of smaller block data, (b) a step (S) of extracting noise inherent to a digital data acquisition device for each of the small block data, (c) a step (S) of calculating correlation of the noise between adjacent small block data, and (d) a step (S) of detecting small block data having noise correlation lower than a level predetermined for the surrounding small block data, as falsely altered data. |
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