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'''SFV''' is an [[acronym]] for ''simple file verification'', a [[checksum]] format using the [[CRC32]] algorithm to verify the integrity of files. [[CRC32]], and thus also SFV, is not an ideal format for [[Computer security|securely]] verifying data integrity, since the CRC32 format is vulnerable to intentional modification that cannot be detected. Other formats, such as [[MD5]], are better suited for ensuring the authenticity of files.
== Check
Files can become corrupted for a variety of reasons including: faulty storage media, errors in transmission, write errors during copying or moving, and so on. SFV allows a person to ensure that a file has not become corrupted by comparing a [[hash]] applied a file to see that they are equal. SFV also allows users to verify the authenticity of files, since if a file was changed (say, with the addition of malicious code) the hash 'fingerprint' of the file would change and alter the user that the authenticity of the file is in question.
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== External
* [http://www.fodder.org/cksfv/ Check SFV]
* [http://www.traction-software.co.uk/SFVChecker/ SFV Checker]
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