list at xenhideout.nl
Sun Dec 3 07:21:41 UTC 2017
Colin Watson schreef op 03-12-2017 1:55:
> On Sun, Dec 03, 2017 at 08:49:22AM +0900, Joel Rees wrote:
>> If you are doing things that your local version of the NSA has
>> interest in
>> (or your local organized crime guys), for the cost of a scanning
>> microscope and a bit of time, all sorts of things are recoverable.
> Do you have a citation for a case where this has in fact been done
> a single straightforward pass of overwriting with (e.g.) zeroes? This
> idea has been wandering around for a long time, but it often seems to
> resist substantiation.
> https://www.nber.org/sys-admin/overwritten-data-gutmann.html and
> (aside from the annoying popup in the latter case) look like plausible
Shred by default overwrites something like 20-30 times.
"At worst, they are a waste of time and electricity."
I was installing Debian the other day on some system. The "secure erase"
option probably used shred in its default state.
This meant that instead of taking 10 minutes to clear a 50GB partition,
it would probably have taken hours.
This is what I mean with "misjudgement of priorities".
I had to manually go into a shell that at first I had forgotten how to
and issue a manual dd if=/dev/zero command to 2 partitions.
For no other reason than that paranoid people want me to take several
hours clearing a rather smallish partition.
The same paranoia underlies the gygantum VeraCrypt iteration design that
asks people to wait 30 seconds for every password attempt.
This misjudgement of priorities renders Linux unusable.
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