> > > Does ext2 support secure deletion (freed blocks are overwritten, possibly
> > > multiple times) rather than just released for reuse? Are there patches available to do this?
> >
> > It was supported in 1.2 I think, but got lost somewhere between 1.3 and 2.0
> > during the MM changes.
> >
> > I would just use a user space utility to do it - in Linux that's
> > straight-forward because ext2 doesn't suffer from the staying-tail
> > problem DOS FAT has (except when you use ftruncate()). Of course you
> > have to make sure too that the sensitive data doesn't stay on the swap
> > partition.
>
> what's wrong w/ using ftruncate? i've been using it after wipe passes
> to make it a little harder to get the file size. oh, did you mean how
> you can't find stray parts of the file if anothe program truncated it
> at some point?
Yes (except for filling up all free space, like I proposed)
-A.
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