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Hi Etienne,<br>
<br>
By definition it is not possible to have the SAML friendly name
match one-on-one as OIDC does not support casing in the claim names,
so edupersonPrincipalName would need map to edupersonprincipalname.
I fear we can discuss endlessly if that is more beautiful and/or
more understandable as compared to eduperson_principal_name. While
indeed there is a extra underscore in the names I very much doubt
anybody will misinterpret the intent of e.g.
eduperson_principal_name. We simply followed what seems to be the
'norm' in the IANA JWT registry:
<a class="moz-txt-link-freetext" href="https://www.iana.org/assignments/jwt/jwt.xml">https://www.iana.org/assignments/jwt/jwt.xml</a><br>
<br>
However, since the document[2] was written, many have adopted the
proposal which means there are now multiple production instances
(including e.g. eduTEAMs, PERUN, SURF/Openconext) who use this
specification. I very much doubt they will be willing to change
there production platform and all connected RPs because of a few
underscores.<br>
<p>Best,<br>
</p>
<p>Niels</p>
<p> </p>
<div class="moz-cite-prefix">On 01-03-2021 16:58, Etienne Dysli
Metref wrote:<br>
</div>
<blockquote type="cite" cite="mid:6d684762-fd4b-2475-93c1-6d16c0ecdfdb@switch.ch">
<pre class="moz-quote-pre" wrap="">Hello everyone,
To get the ball rolling toward an official specification on how to map
one's SAML attributes to OpenID Connect claims, I've started writing
something and submitted a PR on Github [1].
Since the earlier white paper [2] proposed different attribute names
between the two worlds without any argument to justify this change, I
went the opposite direction and reused the exact same names where the
mapping is direct. This should help people familiar with SAML attributes
in implementing them on their OpenID Provider.
Cheers,
Etienne
[1] <a class="moz-txt-link-freetext" href="https://github.com/daserzw/oidc-edu-wg/pull/30">https://github.com/daserzw/oidc-edu-wg/pull/30</a>
[2]
<a class="moz-txt-link-freetext" href="https://wiki.refeds.org/download/attachments/38895621/20181011-OIDC-WP.pdf?version=2&modificationDate=1539619007924&api=v2">https://wiki.refeds.org/download/attachments/38895621/20181011-OIDC-WP.pdf?version=2&modificationDate=1539619007924&api=v2</a>
</pre>
<br>
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