Unknown key in gpg-agent

[Klaus Ethgen]

Hello,

I have one key in my gpg agent that I do not remember anymore and do not
know where it comes from.

`KEYINFO --list` showes me one key (no ssh key), that I do not know. I can
preseed that key with a known passphrase what suggests that I had it in
gnupg once.

However, `gpg --list-keys --list-options show-unusable-subkeys
--with-keygrip` does not display this keygrip.

Is there any posibility to export that key or get info about that key,
find it whatever?

As the key is in the agent, there is a corresponding .key file in
.gnupg/private-keys-v1.d.

So, ssh-add does not show the key (as well as KEYINFO --ssh-list) and
gpg doesnt show the key. What could have put that key there when it is
none of that commands?

By the way, using '&KEYGRIP' does not work with gpg to select a key for
listing by keygrip.

Regards
   Klaus

Ps. Please keep me explicitly in reply as I am not subscribet to the
    list.
-- 
Klaus Ethgen                                       http://www.ethgen.ch/
pub  4096R/4E20AF1C 2011-05-16            Klaus Ethgen <Klaus at Ethgen.ch>
Fingerprint: 85D4 CA42 952C 949B 1753  62B3 79D0 B06F 4E20 AF1C
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 688 bytes
Desc: not available
URL: <https://lists.gnupg.org/pipermail/gnupg-users/attachments/20200814/d4010979/attachment-0001.sig>