Simple File Verification

Simple File Verification ( SFV short, Eng. , "Simple File Verification" ) is a method for checking the integrity of files using CRC32 checksums. The usual file extension for SFV files. Sfv.

Operation

SFV files contain the names of files scanned and the corresponding checksums. With the help of " SFV validator " the CRC32 checksums of your files are calculated and compared with those of the SFV file. Thus it can be determined, for example, whether errors occurred during a file transfer. Do not match the checksum, the file it is declared as corrupt.

The most common use of the SFV format is to be noted in connection with FTP, since there the vulnerability to corrupt files by prematurely aborted file transfers, as well as by accidental transfers of binary files in text mode, is high.

Construction

SFV files consist line by line from the file name, followed by a CRC32 checksum. Lines beginning with a semicolon are considered comments. The following is an example of a SFV file is shown below:

; Generated by WIN- SFV32 v1.1a ( QuickSFV v2.32 Compatibility Mode ) on 2007-07-17 at 21:25:39; http://www.QuickSFV.org; ; 15874568 00:00:01 2007-07-18 01- audioglider_ - _crystalline.mp3; 16813047 00:00:01 2007-07-18 02- audioglider_ - _lens_flare_sky.mp3 01- audioglider_ - _crystalline.mp3 A5BE6EB3 02- audioglider_ - _lens_flare_sky.mp3 4D3C5BD4 see also

• Hash function
• MD5
• SHA1
• Tiger