Wiping files
File wiping means that you remove a file in a way that
it cannot be restored. If you just delete a file it can be very
easily restored with special software, after some time the task
becomes more harder but it can still be done by a professional
using special hardware.
Now, this can be a problem if you have some very sensitive data
on your computer, for example credit card information.
jv16 PowerTools offers a very good solution to this problem.
You can wipe your sensitive files with it very easily, just
start the file tool, drag the files you want to wipe to it,
select them and click Wipe under the More functions button.
Technical details
The file wiping procedure in jv16 PowerTools works by overwriting
the data many times.
First the file is written over with 0s, then with 1s. This is
done three times. After that the file is written over with totally
random data for ten times. The random data is generated by cryptographically
safe pseudo random number generator (PRNG). And, of course,
the file buffers are flushed after each write.
And by the way, if you wipe files yet still tell the program
to backup them first the program remembers that the files were
wiped. So, if you later decide to remove the backups with the
backup tool it knows automatically to wipe also the backup files.
If you feel that this method of wiping isn't secure enough for
you or for some other reason you would like to change the procedure
you can define the amount of rounds in the Settings.dat.
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