on Mon, Aug 13, 2001 at 11:17:50PM -0600, Rick Macdonald (rickmacd@home.com) wrote: > On Mon, 13 Aug 2001, Martin F. Krafft wrote: > > > also sprach harsha (on Tue, 14 Aug 2001 12:10:46AM +0530): > > > There is this option of shreding of a file in KDE What exactly does it do? > > > The progress bar shows making 36 passes if I delete about 150k file. > > > > it most likely overwrites the file several times with alternating > > patterns of 0's and 1's at the bit level, making it impossible to > > restore it through sophisticated recoveries using ever so tiny traces > > that files can leave on disk when overwritten only once. but i am not > > sure. > > Sounds like the Norton Utilities WipeInfo (WipeDisk/WipeFile). There is a > "Government Mode" that an old version of the manual (v8) says takes two > hours to wipe a 1.44 floppy. The manual says "Government Wipe executes a > government standard wipe using decimal character 246 as the last > character. You can change some parameters but if you do so it may no > longer meet government specifications". > > As you say, it makes several passes so the original info cannot be lifted > with fancy techniques, whatever they may be (electron microscopes or > something). Secure Deletion of Data from Magnetic and Solid-State Memory http://www.usenix.org/publications/library/proceedings/sec96/full_papers/gutmann/ -- Karsten M. Self <kmself@ix.netcom.com> http://kmself.home.netcom.com/ What part of "Gestalt" don't you understand? There is no K5 cabal http://gestalt-system.sourceforge.net/ http://www.kuro5hin.org Free Dmitry! Boycott Adobe! Repeal the DMCA! http://www.freesklyarov.org Geek for Hire http://kmself.home.netcom.com/resume.html
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