Slide 1

Report
Connect. Communicate. Collaborate
Identity
confederations
Klaas Wierenga
[email protected]
Cambridge, 14 June 2006
Agenda
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Authentication & Authorisation
Federations
Drivers for (identity) federations
Key developments
Challenges
Summary
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Authentication
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No Dutch passport => no Worldcup for Holland for Salomon Kalou
Authorisation
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• Authentication is (unfortunately) not enough...
Federations
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Trust
Organisation A
Organisation B
Identity Provider
Resource Provider
User
Resource
Federations are about sharing resources across organisational borders
Drivers for (identity) federations
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Organisational
• Users are becoming increasingly mobile
– Bologna process, ECTS
– E-learning for everyone
• Research is getting to “large” to do alone
– Collaboration is common, projects cross organisational borders
– Grids
• Self serving interfaces, changes in workflow inside university
– Employees and students get tasks from administration
– Cutting cost
Technical
• Higher need for security without stopping people from studying or doing resarch
• Two-sided communication gets replaced by multidimensional web services, SOA
• Centralising applications in order to individualise services
– Personalisation gets more important
Political and societal
• Government AAI (and commercial IdPs)
– Interconnections
Federations are happening
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Applications outsourcing their users
– To the home institution of the user
– To a single place at the home institution
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HAKA
Academic identity federations are operational
– Real services used everyday by large amount
of users
– Research and educational applications are
federated
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Federation software available in the
marketplace
Infocard
– Making "identity" tangible to users
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Convergence is there
DK-AAI
– With SAML as lingua franca
JISC federation
Organisational Challenges
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• Local identity management
• Provisioning
– must be understood both on campus and in applications
• Managing roles and attributes
• Scalability problems (many sources of authority)
Technical Challenges (1)
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• Horizontal integration
– Government federations
– Commercial federations (Liberty Alliance, WS-*
based)
– Across national boundaries (confederations)
• Vertical integration
– Web SSO, eduroam, grids
– Lightpath provisioning (GLIF), measurement and
monitoring (PerfSonar)
– E-mail, IM, SIP, SSH
Technical Challenges (2)
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• External IdP’s
– Different levels of authentication
– Different levels of authorisation
• From authentication to authorisation
– Do those enterprise directories really contain authoritative
authorisation information?
• Security constraints
– Policy and technology
• N-tier problems
– Where are the attributes?
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Political and Societal challenges
• Privacy
– Locally
– Within federations
– Across Europe
– World-wide
• Interconnection policies
– building federations
– bridging federations
• Integration of enterprise and federated identity with personal identity
• Agreement on consistent approaches to authentication
Summary
• Educational federations are happening
• Convergence to (small number of) standards
– SAML
• Federations are moving up into the stack
• But campus issues remain a concern
• International confederations are emerging
– eduroam
– Grids
– Géant2 AAI (eduGAIN)
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Thanks to:
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Ken Klingenstein (Internet2)
Diego Lopez (RedIRIS)
Ingrid Melve (UNINETT)
Bob RL Morgan (Internet2)
Milan Sova (CESNET)
Torbjorn Wiberg (Umea University)
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