* Alice Vixie <
id81...@gmail.com> [2013-12-04 18:22]:
> to authproc.idp doesn't do the trick is suggested here<
http://simplesamlphp.org/docs/trunk/saml:nameid> and
> I am clueless now
That documentation is for enabling the generation of those NameIDs,
not the generation of SAML metadata elements.
Unless you're letting others pull metadata directly from your SSP
metadata endpoint (which provides no trust in any of the contained
information, so is rather pointless, IMO) you can easily add any
necessary NameIDFormat elements to the metadata XML before you pass it
on, e.g.
<NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:persistent</NameIDFormat>
before the IdP's <SingleSignOnService> element.
As to how to make SSP to do that, I don't know, sorry.
-peter