there is srm (secure rm) somewhere on the net
here srm.sourceforge.net
srm - secure file deletion for posix systems
happy srm,
Zoran
srm is a secure replacement for rm(1). Unlike the standard rm, it
overwrites the data in the target files before unlinking them. This
prevents command-line recovery of the data by examining the raw block
device. It may also help frustrate physical examination of the disk,
although it's unlikely that it can completely prevent that type of
recovery. It is, essentially, a paper shredder for sensitive files.
srm is ideal for personal computers or workstations with Internet
connections. It can help prevent malicious users from breaking in and
undeleting personal files, such as old emails. It's also useful for
permanently removing files from expensive media. For example, cleaning
your diary off the zip disk you're using to send vacation pictures to
Uncle Lou. Because it uses the exact same options as rm(1), srm is
simple to use. Just subsitute it for rm whenever you want to destroy
files, rather than just unlinking them.
On Tue, 12 Feb 2002, Roy Sigurd Karlsbakk wrote:
> Date: Tue, 12 Feb 2002 14:12:49 +0100 (CET)
> From: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
> To: linux-kernel@vger.kernel.org
> Subject: secure erasure of files?
>
> hi all
>
> Does anyone know if it'll be hard to enable a <em>secure</em> deletion of
> files? What I mean is not merely overwriting it with NULLs, but rather
> using a more sophisticated overwrite, like the IBAS ExpertEraser software
> (http://www.ibas.com/erasure/)
>
> Is this hard/possible/doable?
>
> roy
>
> --
> Roy Sigurd Karlsbakk, MCSE, MCNE, CLS, LCA
>
> Computers are like air conditioners.
> They stop working when you open Windows.
>
> -
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This archive was generated by hypermail 2b29 : Fri Feb 15 2002 - 21:00:49 EST