Thank you. Really helps!
On May 1, 2015 6:57 AM, "Daniel Kahn Gillmor" <d...@fifthhorseman.net> wrote:
> On Fri 2015-05-01 02:37:03 -0400, Danny Crane wrote:
>
> > I have tried googling around. The closest solution I get is:
> >
> > private.key contains the private key file.
> >
> > $pgpdump -i private.key
> >
> > But this only gives me the following:
> >
> > ElGamal p
> > ElGamal g
> > ElGamal y
> > Encrypted Elgamal x
> > some other information of crypto
> >
> > It shows the value for p,g,y, but not x. How can I find out the value of
> x?
>
>
> pgpdump shows that x is encrypted. pgpdump isn't capable of decrypting
> it.
>
> If you remove the passphrase from your secret key, you should be able to
> produce a file that pgpdump can parse for you.
>
> however, note that this places your secret key material is a very
> exposed place -- anyone who gets that file can trivially compromise your
> key.
>
> Since el gamal keys are usually subkeys, you might try *only* exporting
> the subkey without a passphrase, so that at least you do not expose the
> secret key material for your primary key.
>
> Using gpg 1.4.x or 2.0.x, that should be possible with:
>
>
> gpg --export-options export-reset-subkey-passwd --export-secret-subkeys
> ${SUBKEYID}\! | pgpdump
>
> yes, that is a literal ! at the end. so if your subkey ID is
> 0x1234567890abcdef, then you would run:
>
> gpg --export-options export-reset-subkey-passwd --export-secret-subkeys
> 0x1234567890abcdef\! | pgpdump
>
> hth,
>
> --dkg
>
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