On Monday, March 10, 2014 11:59:48 Michael Muller wrote:
> Chris Knadle wrote:
> > On Monday, March 10, 2014 10:31:08 Joseph Apuzzo wrote:
> > > Any ideas now to recover from my double failure ( I created 2 backups,
> > > then
> > > removed one by accident and then when trying to access the thumb drive
> > > with
> > > second copy found it was dead )
> > 
> > You mentioned "removed one".  Depending on where you removed one of the
> > backups from, there may be some recovery tools you might try.  Assuming
> > the filesystem you removed the backup from was ext4, have a look at the
> > 'extundelete' package.  [However I think this won't work if you're using a
> > SSD drive with the 'discard' flag enabled to free unused blocks.]
> 
> I'd actually be somewhat disappointed if gpg didn't run something equivalent
> to "shred" when deleting a private key, but yeah, it's worth a shot.

It all depends on the method of removal.  One (poor) method of removal would 
be simply deleting the ~/.gnupg/secring.gpg file, in which case recovery might 
be possible.  Using wipe or shred would be better, and if either of those were 
used recovery is very unlikely.

I don't know the method GPG uses internally to remove a secret key from the 
local secret keyring -- that's a good question.  It would be good to know if 
that were some kind of secure removal.  [Because I don't know, I don't count 
on it being a secure removal.]

  -- Chris

--
Chris Knadle
[email protected]
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