An open discussion list for topics related to the eduGAIN interfederation service.

[Ian Young <ian AT iay.org.uk>]

On 19 Feb 2014, at 14:32, Lukas Hämmerle <lukas.haemmerle AT switch.ch> wrote:

> What you could consider is introducing an inner EntitiesDescriptor
> element (allows to easier creating attribute filters that apply to all
> eduGAIN entities) or to provide another metadata file with
> French-entities only.

We originally intended to go the inner EntitiesDescriptor route in the UK 
federation, but when we looked into it we found that there is a *lot* of 
software out there (basically, anything other than Shibboleth and 
simpleSAMLphp) that can't handle it properly. In most cases, the nested 
entities are just ignored.

In the end, we went for a single flat aggregate and suggested that people 
make use of the registrationAuthority to distinguish between registrars. We 
have a Shibboleth IdP extension to help with that which I think I've 
mentioned here before.

        -- Ian