SHRED for EXT3?

[Mike McCarty]

Michael A. Peters wrote:
> On Mon, 2005-07-25 at 21:18 -0500, Mike McCarty wrote:
> 
>>Is there a secure file delete available for ext3 file systems?
> 
> 
> I don't know.
> Most of them just seem to write all 0's and then all 1's several times.
> If not - just reformat it with something that does have a secure file
> delete and then do that.
> 
> Or do you mean secure file delete without  wiping other files?
> I'm not familiar with shred.
> 
The latter. "Just" writing over a disc is not reliable for
making data unrecoverable. There are some patterns which
are much better than just 0s and 1s. In any case, I've heard
that ext3 does not rewrite files in place (it is journaled),
so the shred that ships with Fedora Core is most likely not
effective with ext3.

Mike
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