Name Registration Protocol

The optional Name Registration Protocol is used by the service provider to create its own opaque handle to identify a principal when communicating with the identity provider.

The handle discussed in this section is not related to the opaque handle that is generated by the identity provider during federation as defined in Single Sign-On and Federation Protocol. The Name Registration Protocol can, however, be used by the identity provider to change the opaque handle that it registered with the service provider during initial federation.