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Bart Kerver Bart.kerver@surfnet.nl CAUDIT-meeting, Utrecht, 06 Oktober 2006

Bart Kerver Bart.kerver@surfnet.nl CAUDIT-meeting, Utrecht, 06 Oktober 2006. Federated Identity Management from local AAI towards federations. Agenda. Introduction Authentication & Authorization Infrastructures What is an AAI? Why the need for an AAI? SURFnet’s role for IdM Federations

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Bart Kerver Bart.kerver@surfnet.nl CAUDIT-meeting, Utrecht, 06 Oktober 2006

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  1. Bart Kerver Bart.kerver@surfnet.nl CAUDIT-meeting, Utrecht, 06 Oktober 2006 Federated Identity Management from local AAI towards federations

  2. Agenda Introduction Authentication & Authorization Infrastructures • What is an AAI? • Why the need for an AAI? • SURFnet’s role for IdM Federations • What is federation? • Why federate? • Federations are happening! • Federations in .NL • SURFnet’s role for federations • SURFnet Federation policies • Federation global flow and architecture Summary

  3. Introduction XACML monitoring network logging authorization WS* database accounting registration identification SAML sso dsml ID-FF authenticate directory provisioning access control management dirxml SPML users network resources identities

  4. What is an AAI? AAI: Authentication and AuthorizationInfrastructure: • identification/authentication of users; • gathering of identity information of a user (attributes); • authorize users (apply and release attributes); • transport of the assertions; • important component: ‘trust’. …and if this is all in place, you’re able to: • provision (eg. create a ‘profile’ for an ELO); • personalize (eg. apply a ‘role’ in an ELO); • control access to resources. Examples:Star Alliance, banking, eduroam, DigiD …

  5. Why the need for an AAI? • Ease of use: less passwords, Single Sign-On, authenticate at home institute; • Collaboration of institutes (national/international); • Mobility of users on the network and among institute (Bologna act, European Credit Transfer System - ECTS); • Growing need for access control and personalization; • Centralized AAI has great (positive) impact on for maintenance/management/security/costs, etcetera.; • Easy to add additional services (resources/content).

  6. SURFnet’s role for IdM • Awareness for Identity Management (IdM) • Reports on IdM • studies on current state of IdM in HE in .NL; • Scenarios to realize (upgrade) IdM; • Federated IdM (business drivers, solutions…). • Workshops on IdM • Workgroup for Library Access Management (‘BAM’) • Development and support of open source product A-Select • Stimulate deployment of A-Select (200k+ users)

  7. What is federation? • It’s a formal federation (‘collaboration’) of organizations focused on creating a common framework for trust in support of research and education. • A federation is an association of organizations that use a common set of attributes, practices and policies to exchange information about their users and resources in order to enable collaborations and transactions. • So… it’s all about sharing resources • Federation has two main pillars: • procedures/policies; • (fe. schema, trust, …) • technical implementation; • (fe. pki, eduperson, metadata, technology) • Federations are NOT about a certain product but should be build on standards (fe. SAML/Liberty/WS*), fe. IdP’s and SP’s are build using vendor specific implementations (Oracle, Sun, IBM, Novell etc...)

  8. Why federate? AAI on different levels with own complexity, bv: • Faculty (local management of identities) • University (centralize identities / setup IdM!) • National (federate) • International (con-federate) Growing number of service providers and inter-institutional communication results in 1 to N relationships... A B wanted ? C D Identity provider service provider central components for federation

  9. Federations are happening HAKA • Applications outsourcing their users • To the home institution of the user • To a single place at the home institution • Academic identity federations are operational • Real services used everyday by large amount of users • Research and educational applications are federated • Federation software available in the marketplace • Identity2.0 aka Infocard • Making "identity" tangible to users • Convergence is there • With SAML as lingua franca • How to connect all of these federations • ‘Con-federate’ DK-AAI JISC federation

  10. Federation initiatives - .NL

  11. SURFnet’s role for federations • This year (2006) Build a service “SURFnet Federation” • technical implementation (based on A-Select); • define: policies, contracts, legal organization…; • organize service providers (SP); • support identity providers (IdP). • Next year (2007): • stimulate deployment and join-in • workshops; • install fests for both IdP and SP. • interconnect federations (‘confederate’: both NL and EU) • support standards (SAML, WS*,eduGAIN) • translate assertions from SAML<>A-Select<>WS-Federations<>eduGAIN enabling federated SSO

  12. SURFnet Federation Policies Start simple: low level entry • Contract for IdP part of SURFnet contract?; • Contract for all SP’s standardized; • If an IdP is also SP, just one contract. • IdPs make best efforts: • to issue credentials to members only • to ensure accuracy of assertions • SPs agree to respect the privacy of users • don't aggregate attributes or disclose to others • report on use of federation

  13. SNF Global flow 1: Access resource at SP 2: you are not authenticated, go to federation 4: Select your IdP (WAYF) 3: What IdP’s are available? 5: I want to authenticate 6: Please supply credentials to authenticate 9: Access to resource granted 7: You are authenticated and authorized, go back to the federation and carry the authentication assertion 8: Redirect to SP with authentication assertion

  14. SAML (SAML) users identities central federation components resources

  15. Confederation in Europe • Geant2 Project JRA5: 3 lines: roaming, AAI and uSSO • AAI: eduGAIN • national level federations should be respected; • different federation technologies/software; • connect through eduGAIN: • SAML1.1 profiles + extensions to standard profiles • REST for communication • Bridging element (BE) to convert eduGAIN <> local federation • Initially BE’s central (per federation), in future at all home institutes?

  16. Confederation in eduGAIN

  17. Summary • The way forward: federated identity management; • The base: (high quality) identity management at institutes; • Standardizing attributes (schema’s) will be hard (in .NL); • Federations should be build based on standards, SAML and Liberty are important, besides you need WS-Federations. • A-Select has high penetration/deployment in .NL • A-Select is one of the products to implement a federation.

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