Discovery by Email, Domain, or entityID

[Scott Koranda]

> It's just not there yet, and there is no real field in
> metadata for "domain".  

There is <mdui:DomainHint> :

https://docs.oasis-open.org/security/saml/Post2.0/sstc-saml-metadata-ui/v1.0/cos01/sstc-saml-metadata-ui-v1.0-cos01.html#_Toc15657212

There are roughly 600 entities in the eduGAIN metadata that provide
<mdui:DomainHint>.

The current release of pyFF indexes (among other things)
<mdui:DomainHint> so that domains can be used with the search API. See

https://github.com/IdentityPython/pyFF/wiki/Extensions-to-MDQ

Scott K