Data delivery is only available for registered users, who need to present their username and password for access to the services using HTTP Authorization header with Basic scheme for HTTP based connections, and using SASL plain for AMQP connections. Users connecting to the public interfaces must present a valid EACP client certificate, which must be further whitelisted in the service based on the details of the Distinuished Name portions of the client certificate such as Common Name, Organisation, Email.