Messages in this thread | | | Date | Tue, 22 Dec 1998 18:10:49 +0100 (MET) | From | Clifford Wolf <> | Subject | Re: Wanted: Secure-delete utility for Linux |
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On Tue, 22 Dec 1998, Charles Cazabon wrote:
> Actually, it's all-bits-zero, all-bits-one, all-bits-zero. This prevents > people from reading the previous data from residual magnetic fields underneath > a disk which has simply been wiped with zeroes, etc. The complete cycle for > each bit is enough to minimize this risk.
'badblocks -w' does this multiple times. So someone could use badblocks to do a secure deletion ...
- clifford
-- -- -- -- -- -- -- -- -- -- -- -- -- Clifford Wolf (CEO and CTO) The ROCK Projects Workgoup IRC: IRCnet / clifford http://www.rock-projects.com/ http://www.clifford.at/ e-mail: c.wolf@rock-projects.com email: god@clifford.at
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