Simple file verification: Difference between revisions

Revision as of 10:03, 18 April 2005

Revision as of 19:03, 4 May 2005

Line 9:

==Check sum==

Files can become [[Data corruption|corrupted]] for a variety of reasons including: faulty [[Computer Storage|storage media]], errors in [[Transmission (telecommunications)|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 function|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 alteralert the user that the authenticity of the file is in question.

One of the first programs to use the SFV format was [[WinSFV]].