An invite-only-model public key server.
Keys are stored in certificates. A certificate has some meta data that describes a key.
A server should
- Without auth
- Responsd with a certificate when queried with a public key
- With auth
- Store a certificate
- Replicate in a Master/Master Scenario according to any known servers in its database
- Provide a list of up to 5 of the most recently successful servers that it has replicated to
- Run on port 11372 (the next port after a well known port for the openPGP key server)