Producing representative hashes for segments of a file

A file is divided into plural segments, and for each of at least some of the plural segments, plural windows covering different portions of the corresponding segment are defined. According to a predefined criterion, one of the windows associated with the corresponding segment is selected. A represen...

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Bibliographische Detailangaben
Hauptverfasser: Eshghi, Kave, Forman, George H
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A file is divided into plural segments, and for each of at least some of the plural segments, plural windows covering different portions of the corresponding segment are defined. According to a predefined criterion, one of the windows associated with the corresponding segment is selected. A representative hash based on the portion in the selected window is calculated for representing the corresponding segment.