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Date:      Fri, 21 May 1999 00:46:47 -0600
From:      Wes Peters <wes@softweyr.com>
To:        Joel Maslak <jmaslak@wind-river.com>
Cc:        security@FreeBSD.ORG
Subject:   Re: Secure Deletion
Message-ID:  <37450157.181A953@softweyr.com>
References:  <3.0.6.32.19990520095507.00840010@india.wind-river.com>

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Joel Maslak wrote:
> 
> Let's keep standard BSD semantics here, please!
> 
> As for "secure" deletion...  Why doesn't someone just write a simple
> user-space program to do that.  True, it wouldn't handle calls to unlink(),
> but one would think that someone could modify the library really quick
> (provided no one does a system call directly, but uses the libc interface
> instead).  I think this would be much better for everyone involved.

It'd be ever so much easier to do it with a MIB (kern.shred) or a 
filesystem superblock or mount-time option for somewhat finer control.
In general, if you're worried enough about files to obliterate them
on deletion, you want to do so to every file, so a MIB makes sense.

-- 
       "Where am I, and what am I doing in this handbasket?"

Wes Peters                                                 Softweyr LLC
http://www.softweyr.com/~softweyr                      wes@softweyr.com


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