The keys attached to this document are for testing purposes, because the secret key is published below. So everybody can use them to sign or decrypt. Intended use is for problem reports and reproducible testing.
We plan to add key-pairs to reflect typical use in the future. Once added here and used, key-pairs shall not be modified and published. (They are not intended to be uploaded to public keyservers.) Please ask on gnupg-devel@ if you think we would need more key-pairs.