The service may offer unauthenticated/public use.
If the use is authenticated, the service shall ensure consumer authentication in accordance with the EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile through the use of a X.509 certificate or the use of a username/password (SASL).
The service shall ensure provider authentication in accordance with EUROCONTROL Specification for SWIM Technical Infrastructure (TI) Yellow Profile through the use of a X.509 certificate.