Versions Compared

Old Version 12

changes.mady.by.user Tom Scavo

Saved on

compared with

New Version Current

changes.mady.by.user Rhys Smith

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.
Comment: Fixed incorrect SAML Attribute Name in SP EA stanza

This document is an attempt to rewrite the R&S specification for clarity and simplicity without breaking existing R&S deployments.

Note
The following draft text is for discussion only! For comparison, the official normative text is shown below the horizontal line. 

...

2. Syntax

The following URI is used as the attribute value for Attribute ReleaseAn Identity Provider supports the Research & Scholarship (R&S) category if, for some subset of the Identity Provider’s user population, the Identity Provider is willing and able to release the R&S attribute bundle to all conforming R&S Service Providers without administrative involvement, either automatically or subject to user consent.

The R&S attribute bundle consists of the following three meta-attributes:

Entity Category and Entity Category Support attribute:

http://refeds.org/category/research-and-scholarship

A Service Provider that conforms to R&S exhibits the following entity attribute in its metadata:

Code Block
titleAn entity attribute for SPs that conform to R&S
<mdattr:EntityAttributes xmlns:mdattr="urn:oasis:names:tc:SAML:metadata:attribute">
  <!-- entity attribute for SPs that conform to R&S -->
  <saml:Attribute
      xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
      NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"
      Name="http://macedir.org/entity-category">
    <!-- the refeds.org R&S entity attribute value -->
    <saml:AttributeValue>
      http://refeds.org/category/research-and-scholarship
    </saml:AttributeValue>
  </saml:Attribute>
</mdattr:EntityAttributes>

An Identity Provider that supports R&S self-asserts the following entity attribute in its metadata:

Code Block
titleAn entity attribute for IdPs that support R&S
<mdattr:EntityAttributes xmlns:mdattr="urn:oasis:names:tc:SAML:metadata:attribute">
  <!-- entity attribute for IdPs that support R&S -->
  <saml:Attribute
      xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
      NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"
      Name="http://macedir.org/entity-category-support">
    <!-- the refeds.org R&S entity attribute value -->
    <saml:AttributeValue>
      http://refeds.org/category/research-and-scholarship
    </saml:AttributeValue>
  </saml:Attribute>
</mdattr:EntityAttributes>

5. Attribute Bundle

The R&S attribute bundle consists of the following attributes:

  • shared non-private user identifier
  • person name
  • email address

where non-private user identifier is where shared user identifier is a persistent, non-reassigned, non-targeted identifier defined to be any one of the following:

  1. eduPersonPrincipalName (if non-reassigned)eduPersonUniqueId
  2. eduPersonPrincipalName + eduPersonTargetedID

and where where person name is  is defined to be any one of the following:

  1. displayName
  2. givenName + sn (surname)

and where where email address is  is defined to be the mail attribute.the mail attribute.

6. Attribute Request

Service Providers SHOULD request a subset of the R&S attribute bundle that represents only those attributes that the Service Provider requires to operate its service.

7. Attribute Release

An Identity Provider MUST release R&S attributes to any conforming supports the Research & Scholarship (R&S Service Provider upon request, in one of two ways:

...

) category if, for some subset of the Identity Provider’s user population, the Identity Provider is willing and able to release the R&S attribute bundle

...

to all conforming R&S

...

Service Providers without administrative involvement, either automatically or subject to user consent.

An Identity Provider  is NOT REQUIRED to MUST release the non-private user identifier meta-attribute to a given R&S attribute bundle to any conforming R&S Service Provider  unless one or more of eduPersonPrincipalName, eduPersonUniqueId, or eduPersonTargetedID is requested in Service Provider metadataupon request, without regard for the isRequired XML attribute. Similarly, an Identity Provider is NOT REQUIRED to release the person name meta-attribute to a given R&S Service Provider unless one or more of displayName, givenName, or sn (surname) is requested in Service Provider metadata, without regard for the isRequired XML attribute. Finally, an Identity Provider is NOT REQUIRED to release the email address meta-attribute unless the mail attribute is requested in Service Provider metadata, without regard for the isRequired XML attribute.

Any other attribute listed in Service Provider metadata is out of scope with respect to this specification.

any R&S attributes requested in Service Provider metadata.


...

2. Syntax

The following URI is used as the attribute value for the Entity Category and Entity Category Support attribute: http://refeds.org/category/research-and-scholarship

5. Attribute Request

Service Providers SHOULD request a subset of R&S Category Attributes that represent only those attributes that the Service Provider requires to operate its service. 

6. Attribute Release

Identity Providers are strongly encouraged to release the following bundle of attributes to R&S category Service Providers:

...

For the purposes of access control, a non-reassigned persistent identifier is required. If your deployment of eduPersonPrincipalName is non-reassigned, it will suffice. Otherwise you MUST release eduPersonTargetedID (which is non-reassigned by definition) in addition to eduPersonPrincipalName. In any case, release of both identifiers is RECOMMENDED.

7. Examples

Standard entity attribute for R&S Service Providers:

<EntityDescriptor xmlns=”urn:oasis:names:tc:SAML:2.0:metadata”
entityID=”https://service.example.com/sp”>
<Extensions xmlns:mdattr=”urn:oasis:names:tc:SAML:metadata:attribute”>
<mdattr:EntityAttributes xmlns:saml=”urn:oasis:names:tc:SAML:2.0:assertion”>
<saml:Attribute
Name=”http://macedir.org/entity-category”
NameFormat=”urn:oasis:names:tc:SAML:2.0:attrname-format:uri”>
<saml:AttributeValue>http://refeds.org/category/research-and-scholarship>
</saml:Attribute>
</mdattr:EntityAttributes>
</Extensions>
…
</EntityDescriptor>

Standard entity attribute for R&S Identity Providers:

<EntityDescriptor xmlns=”urn:oasis:names:tc:SAML:2.0:metadata”
entityID=”https://service.example.com/idp”>
<Extensions xmlns:mdattr=”urn:oasis:names:tc:SAML:metadata:attribute”>
<mdattr:EntityAttributes xmlns:saml=”urn:oasis:names:tc:SAML:2.0:assertion”>
<saml:Attribute
Name=”http://macedir.org/entity-category-support”
NameFormat=”urn:oasis:names:tc:SAML:2.0:attrname-format:uri”>
<saml:AttributeValue>http://refeds.org/category/research-and-scholarship> </saml:Attribute>
</mdattr:EntityAttributes>
</Extensions>
…
</EntityDescriptor>