9 Mar
2011
9 Mar
'11
12:41 p.m.
In article <201103091946.p29Jkhmo021388 at imr-da06.mx.aol.com>,
<vintagecoder at aol.com> writes:
On Tue, 08 Mar 2011 18:14:38 -0600
cctalk-request at classiccmp.org wrote:
You can't use dd to erase an individual file.
In addition, there are all the machinations that Al mentioned. The device
pretends to be a disk, but it isn't a disk.
Read recent issues of comp.risks on usenet for more discussion on this.
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From: Richard <legalize at xmission.com>
Subject: Re: Who will be the last HD maker down the road?
To: cctalk <cctalk at classiccmp.org>
Message-ID: <E1Px1RU-000789-Ic at shell.xmission.com>
In article <4D75366B.21696.2604652 at cclist.sydex.com>,
"Chuck Guzis" <cclist at sydex.com> writes:
I don't know how that can be true. I can understand deleting doesn't work
but is it true a simple dd if=/dev/zero of=/dev/sdx onto the flash card
doesn't fill it with zeros? We may be using flash both for external storage
and internal storage.
Flash memory is problematic for secure data. Basically, its nearly
impossible to securely erase a file from flash based disks.