SAML2 attribute names breaking standards

[Nate Klingenstein]

Keith,

>I'm sure this breaks some accepted standards out there.

Yes, it does.

>Other than that, is there a technical reason I shouldn't do this?

If they're committed to this kind of attribute atrocity, then I'd at least ask them to do this in the "unspecified" attribute NameFormat rather than "URI" since it's pretty obviously not a URI.

Beyond that, it's just the typical issues of loose data definition and naming and the resultant complexity of your IdP's configuration files.

Thanks,
Nate.