1.6 Applicability Statement

The Passport SSI Version 1.4 Protocol applies to environments in which one or more services require HTTP-based authentication (as specified in [RFC2616] section 11) of members of a common base of users. In such cases, they might prefer to use a shared Authentication Service (AS). For example, if multiple enterprises prefer to offer web-based services specifically to members of a particular organization enrolled in such a shared AS, then they can choose to form a realm. The enterprises would become partner services associated with the realm, and members would be able to authenticate themselves to any of the partner servers using the shared AS and the Passport SSI Version 1.4 Protocol.