> On 19 Feb 2017, at 08:41, Stefano Tranquillini
> <stefano.tranquill...@gmail.com> wrote:
>
> wait, If i've a subkey E (called E1) and I lose it (e.g. it was on the
> smartcard).
> Can't I create a new E (called E2) from my master and decrypt the data? Or
> the data encrypted are decriptable only by the exact E (E1 in this case) that
> was used to encrypt it?
You need the *exact* subkey. This is why I make such a big deal about backups!
Subkeys are not "created from" the primary, but completely at random. If you
create a new subkey it will be completely different from any previous ones.
Attaching the subkey to a primary is just a statement saying "don't use the
primary key, use this subkey instead". The keys are not mathematically related.
This is a feature! ;-)
> Can't I export the subkeys to a file and backup that file and then move the
> keys to the card? Will I be able to restore the keys if they get lost?
Easier to just back up the entire .gnupg directory. Why complicate the restore
process?
A
_______________________________________________
Gnupg-users mailing list
Gnupg-users@gnupg.org
http://lists.gnupg.org/mailman/listinfo/gnupg-users
