There have been some requests to enhance OpenPGP card specifications.
This ticket is to collect all of them.
- More keys than three
- Data object for User ID of OpenPGP (which includes email address, usually)
- Data object for self signature packet of OpenPGP
- with timestamp, User ID and signature, public key of OpenPGP can be constructed on host
- New way of authentication (not admin and user), for each key, just like gpg-agent