cant encrypt to Werner Koch's public key!

[Florian Weimer]

"Giorgos Pallas" <gpall@hal.csd.auth.gr> writes:

> I have downloaded Werner Kochs public key
> (http://www.gnupg.org/gnupg-sigkey.html), i have imported it successfully. I
> want to send an encrypted file to him (foo.txt).
> I give :
> gpg -r dd9jn@gnu.org -e foo.txt
> 
> and i get :
> gpg: No key for user ID
> gpg: dd9jn@gnu.org: skipped: public key not found
> gpg: opsys.cc: encryption failed: public key not found

Werner's key is a sign-only key (because it uses the DSA algorithm).