Arpoon Checksum computes checksums of files. A checksum (message digest, hash value) is a kind of fingerprint that enables to uniquely identify a file or document. This can be used for authentication purposes or to track document modifications.By way of example, this tool can be utilized to:* uniquely identify a given file, thus using the checksum as a fingerprint.* survey a file i.e. to check if a file as been modified by comparing its actual checksum with a previously archived value.* look for possible duplicate of files by scanning hardware storage devices (hard disk, DVD, CD, memory sticks...)* verify the authenticity i.e. genuineness of a fingerprinted document that has been sent to you (e.g. as an EMail attachment or by way of a download) by comparing its on-the-fly computed checksum with its stored fingerprint.Builtin functionality:* Drag&Drop of files or directories* Recursive calculation for directories strucutres (optional)* Result list can be sorted (ascending/descending) by every single checksum type* Link to files can be resolved (optional)* Hash values can be displayed as hexadecimal or as a MIME-compatible base64 code* Display of detailled file properties like attributes, size, date of creation...* Result list may be exported to the clipboard or saved as CSV or HTML files* During long run calculation, the computing progression is displayed* Statistics on computation (average speed rate, file size ...) are automatically collected* A warning message may be displayed before a time consuming computation is started* Multiple files computation may be aborted during the calculation* Checksum calculation for a very big files may be aborted too* All options are maintened in an Ini-file, which is automatically saved in the current user's application data directory, allowing a per user configuration