WipeFreeSpace - a program for secure wiping of free space on file systems.
WipeFreeSpace wipes the following things (when supported by the backing library):
- free space (space in unused blocks/clusters)
- free space in partially used blocks (also called the "slack space")
- deleted files' names and other data that can be used to undelete a file (like the journal)
WipeFreeSpace does NOT decrease the amount of available free space when working.
The following method names (case-insensitive) are available:
- Gutmann (method similar to Gutmann's, the default, 36 passes)
- random (shred-like, 25 passes)
- schneier (Shneier's method, 7 passes, contains ITSG-06)
- dod (DoD, 3 passes, contains NAVSO P-5239-26 and German Federal Office for Information Security)
WipeFreeSpace also works for file systems created inside regular files on any host file system.
NOTE: it is best to use this program on unmounted file systems, what makes sure the journal is committed.
NOTE: if a block is damaged, it is only wiped until the first error. There is no guarantee that it will be fully wiped.
Author: Bogdan Drozdowski, bogdro (at) users . sourceforge . net
License: GPLv2+
The dev branch may contain code which is a work in progress and committed just for tests. The code here may not work properly or even compile.
The master branch may contain code which is committed just for quality tests.
The tags, matching the official packages on SourceForge, should be the most reliable points.