DSA/ElGamal key not usable by PGP v7 (imports but won't encrypt)

Werner Koch wk@gnupg.org
Thu Nov 1 11:36:02 2001

On Wed, 31 Oct 2001 13:05:08 -0800, Steve Butler said:

> attempting to encrypt data to send to us is unable to use the new public
> key.  They have PGP v7.  It attempts to encrypt but then blows up.  Their
> PGP support claims they don't support interaction with OpenPG.

I have seen a couple of these issues in the last time, but don't know
what the problem with PGP 7 is.  However those reports are about
problems _decrypting_ with PGP7.

> I've seen the notes about Type 16 versus Type 20 ElGamal.  However, I'm
> unable to determine which type we have and how to change it to the other
> type (without invalidating our public keys for all the other folks).

You can't change it

> pub  1024D
> sub  2048g

A small 'g' denotes type 16 (encrypt only) whereas a capital 'G'
denotes type 20 (sign+encrypt).

PGP should be able to use this key as this is the standard OpenPGP


Werner Koch        Omnis enim res, quae dando non deficit, dum habetur
g10 Code GmbH      et non datur, nondum habetur, quomodo habenda est.
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