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Date:      Wed, 15 Oct 1997 21:22:46 -0000 (GMT)
From:      Chris Dillon <cdillon@tri-lakes.net>
To:        Narvi <narvi@haldjas.folklore.ee>
Cc:        Terry Lambert <tlambert@primenet.com>, security@FreeBSD.ORG, benedict@echonyc.com
Subject:   Re: C2 Trusted FreeBSD?
Message-ID:  <XFMail.971015212530.cdillon@tri-lakes.net>
In-Reply-To: <Pine.BSF.3.96.971015093743.9017C-100000@haldjas.folklore.ee>

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On 15-Oct-97 Narvi wrote:
>
>On Wed, 15 Oct 1997, Snob Art Genre wrote:
>
>> On Tue, 14 Oct 1997, Chris Dillon wrote:
>> 
>> <snip>
>> > The point is, if someone stole your SIMMs out of your BOX to try and
>steal
>> > data from them, they're out of luck.. If they steal what you THINK is
>a
>> > totally blank hard drive or floppy disk that you previously wrote
>> > sensitive data to, think again.  This is why it is standard policy in
>some
>> > places for drives that went south to not just be thrown away, but
>> > completely destroyed with a sledge-hammer. :-)
>> 
>
>Or in other words - C2 or not, we are going to need a modified ffs that
>properly overwrites the freed (via unlink, truncate or other means)
>storage on disk anyways?

Not my area of expertise exactly, but from what I gather, yes.  This would
eat tremendous amounts of precious I/O, unless I suppose it was done at
idle times, but that might defeat the purpose of it.

--- Chris Dillon
--- cdillon@tri-lakes.net
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---- (http://www.freebsd.org)



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