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Directories: The Next Stage

Directories: The Next Stage. Keith Hazelton, Senior IT Architect University of Wisconsin-Madison. N O T E ! ! !. For this morning’s session, send questions via email to: mw-vimm-questions@ internet2.edu. Directories, the Next Stage: Outline. MACE-Dir growth courtesy of NMI

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Directories: The Next Stage

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  1. Directories: The Next Stage Keith Hazelton, Senior IT Architect University of Wisconsin-Madison

  2. N O T E ! ! ! • For this morning’s session, send questions via email to: • mw-vimm-questions@ • internet2.edu

  3. Directories, the Next Stage: Outline • MACE-Dir growth courtesy of NMI • Game plan for this morning’s session • Projects directly under MACE-Dir • eduPerson, other object classes • Shibboleth support • Affiliated directories & VidMid dir bits

  4. MACE-Dir growth courtesy of NMI • NSF Middleware Initiative (NMI) • NSF-funded program ($12m) to establish standard environment for scientific and educational computing • Recipients: Internet2, Educause, SURA, Grids

  5. MACE-Dir growth courtesy of NMI • Directory work prominent in Internet2 NMI • Panelists: volunteers of yesteryear, their home institutions will now be reimbursed • The top tasks for year one? Watch today’s presentations

  6. MACE-Dir growth courtesy of NMI I2 Middleware Architecture Committee for Education HEPKI MACE-Dir Shibboleth Groups VidMid Metadir Affil. Dirs. . . .

  7. MACE-Dir growth courtesy of NMI • MACE-Dir Technical Advisory Board • World class experts like: • David Chadwick (X.500 fame) • Kurt Zeilenga (IBM, OpenLDAP) • Kim Cameron (MS, Zoomit) & more • To stress-test and improve our ideas

  8. Gameplan for this session • Keith Hazelton: eduObjects, affiliated dirs. • Michael Gettes: Dir. of Dirs. for Higher Ed. • Tom Barton: Groups and roles in directories • Richard Jones: Metadirectories • <Break> • Panel discussion / Q & A

  9. eduPerson, other eduObject classes • eduObjects: People, Organizations, Services, Resources,… • Widely implemented common attributes • Extensible object classes (your attr.here) • Lower impedance in application access to info • No need to invest in your own wheel factory

  10. eduPerson, other eduObject classes • The tough parts: • Being smart in picking the attributes worth the long, hard journey to consensus • Being modest about how much of the ocean to boil • Engaging the critical stakeholders • Promulgating achieved goodness

  11. eduObject win: Shibboleth support • Authenticate locally, access resources globally • Secure sharing of authorization information between home institution and target site • eduOrganization information essential

  12. eduObject win: Shibboleth support • Person taking a for-credit course at a different institution: • Need to define, create and share new data elements such as class names, majors, without risking naming chaos • Need to define equivalency mappings

  13. eduObject win: Shibboleth support • And further out there: • What if we had shareable object classes that could carry access control policies? • A more flexible and dynamic Shibboleth

  14. Affiliated directories • Discarded goal: Single huge institutional directory with all attributes anyone and any application will ever need • New goal: One institutional directory that manages identity across IT systems; • Plus a federation of special-purpose directories with complementary contents

  15. Affiliated directories wins • If we find a solid approach and offer tools: • NASA could launch object classes at the same time as a new International Space Station experimental module • Auto-linked to the assigned investigators at research centers and universities • Keep investigator contact info current

  16. Affiliated directories wins • MACE-VidMid could create vendor supported solution for authenticated, controlled access to video streams • Basic person information in general purpose directory • Video attributes in application-specific directory • Mappings from person to workstation

  17. Affiliated directories: the challenges • How to associate an attribute value with its ultimate, authoritative source, and trust that it has not been altered in transit • Digital signatures look like part of the solution • How to agree upon who is authoritative for what

  18. Affiliated directories: the challenges • How to link identities across directories • How to make the linkage persistent in the face of identifier changes • How not to degrade privacy as information repositories aggregate bits and pieces of personal information

  19. Affiliated directories: the challenges • Not to mention synchronizing data without benefit of synchronization standards • If MACE-Dir and its working groups can meet challenges such as these, NMI will have gotten real value for its investment

  20. Conclusion • Track NMI Directory work, or better yet, participate • http://middleware.internet2.edu

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