Of course, a _secure_ file wiper needs to do more than just write 0's to the disk. With the right equipment, that's fairly easy to recover the data. A more secure file wiper writes patterns, including random data, to each block to make the disk unrecoverable.
DBAN does a very good job of this, and so do others (GNU shred from GNU coreutils is very nice.) -jh On 9/24/07, Eric Auer <[EMAIL PROTECTED]> wrote: > > Hi Alain, > > I think in particular a slack space wiper would be nice. > Something which opens each file, adds 00s to make the > size a multiple of the cluster size, makes sure that the > changes are written to disk, and finally truncates the > file to normal size again. You can combine this with a > tool which creates a bogus file to fill all free space. > Those 2 steps together give you a tool to wipe empty > space without using sector based low level access :-). > > Note: This would not wipe unused / deleted directory > entries (you could add a bit of that by creating a > bunch of temp files to make directory size a multiple > of cluster size) but on the other hand it would be > quite nice that the tools suggested above would work > even in Windows and for non-FAT filesystems and with- > out the risks of messing with lowlevel access :-) > > Eric > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
