Jordi Espasa Clofent wrote:
Hi all,
The subject is auto-descriptive ;)
After reading a while about wiping [1] I think there's not a unique
way to do it. Finally I've chosen a simple double-step method:
First,
$ dd if=/dev/urandom of=<disk_to_delete>
and next
$ dd if=/deb/zero of=<disk_to_delete>
?Do you think is it safe enough? I mean ?is it enough against the
common recovery low-level data tools?
[1] http://en.wikipedia.org/wiki/Data_erasure#Standards
Slightly tangential to your scripting but have you considered pre-made
tools? Overkill perhaps, but in Linux world there is secure-delete.
srm (the command) +options will provide 38 wipes with randomised numbers
as well as recursivity and a number of even more detailed capabilities.
I haven't checked, but perhaps this tool exists in OBSD world as well?
