Some of the earliest work of The Open Group Security Forum is around authentication. The X/Open Single Sign-On Service (XSSO) Preliminary Specification was published in 1997, with its Technical Corrigendum following in 1999. The XSSO Preliminary Specification describes a standard interface between applications and sign-on systems so that whatever the underlying technology of the application's authentication technology, they will plug-and-play with a 'coordinating primary' single sign-on system. The Role-Based Access Control (RBAC) standard defines a set of authorizations consistent with the generally accepted tasks assigned to administrative users, granting them the privileges necessary to perform their administrative duties, within a common set of administrative roles to be predefined on UNIX® systems.
- X/Open Single Sign-On Service (XSSO) – Pluggable Authentication
- X/Open Single Sign-On Service (XSSO) – Pluggable Authentication (Technical Corrigendum 1)
- Role-Based Access Control (RBAC)
- Authorization Roles Managed on RBAC (O-ARMOR)
- Authorization (AZN) API