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Perspectives of Integrating AAI with Grid in EGEE-2

Perspectives of Integrating AAI with Grid in EGEE-2. Christoph Witzig Amsterdam, October 17, 2005. Outline . Introduction Overview of SWITCH SWITCH activities in AAI and Grid SWITCHaai: The Swiss Shibboleth-based AAI How it works Shibboleth concepts EGEE security framework

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Perspectives of Integrating AAI with Grid in EGEE-2

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  1. Perspectives of Integrating AAI with Grid in EGEE-2 Christoph Witzig Amsterdam, October 17, 2005

  2. Outline • Introduction • Overview of SWITCH • SWITCH activities in AAI and Grid • SWITCHaai: The Swiss Shibboleth-based AAI • How it works • Shibboleth concepts • EGEE security framework • Introduction EGEE • How it works • Grid security concepts • SWITCH proposal for interoperability Shibboleth - gLite • Related efforts • Summary

  3. Introduction • SWITCH has four strategic business areas • Network: operating the Swiss Research and Eduction network • Domain name registration for .ch and .li • Security • Operates (among other things) SWITCHpki • NetServices • providing services on top of the network for academic users • NetServices • Video conferences, streaming technologies, support for (physical) mobility • SWITCHaai: Shibboleth-based AAI for the Swiss academic sector • Grid: targeted Grid services as new strategic direction • There is no Swiss grid program • Various grid efforts at some universities Introduction

  4. SWITCHaai • Main efforts: • > 110’000 users ( 50%) of the Swiss higher education sector are currently “AAI-enabled”. • Federally funded cooperation projects will complete the national roll-out and increase the number of new resources. • Define cooperation with other federations. • Develop accounting (AAAI) services. SWITCHaai = federated, national, Shibboleth-based authentication and authorization infrastructure (AAI). Introduction

  5. SWITCH Activities in Grid Computing • Two main strategic efforts: • Within the context of EGEE-2 we want to add interoperability between Shibboleth and the gLite middleware stack. • Within the national context we want to work together with our partners (universities, computing centers) to build up such a national grid infrastructure based on the AAI-enabled gLite middleware. Grid support = new strategic direction: national AAI-enabled grid infrastructure in Switzerland. Introduction

  6. Disclaimer • Decision of EU regarding EGEE-2 proposal is pending • Assuming a positive answer from the EU EGEE-2 will start in April 2006 and last for two years Introduction

  7. The World without AAI University A • Tedious user registration at all resources • Unreliable and outdated user data at resources • Different login processes • Many different passwords • Many resources not protected due to difficulties • Often IP-based authorization • Costly implementation of inter-institutional access Student Admin Web Mail e-Learning Library B e-Journals Literature DB University C Research DB e-Learning User Administration Authentication Authorization Resource Credentials SWITCHaai

  8. The World with AAI University A • No user registration and user data maintenance at resource needed • Single login process for the users • Many new resources available for the users • Enlarged user communities for resources • Authorization independent of location • Efficient implementation of inter-institutional access AAI Student Admin Web Mail e-Learning Library B e-Journals Literature DB University C Research DB e-Learning User Administration Authentication Authorization Resource Credentials SWITCHaai

  9. How it works SWITCHaai

  10. Shibboleth Concepts • Based on SAML • Initial focus on Web-based resources SWITCHaai

  11. EGEE: Enabling Grids for E-sciencE • EU sponsored grid project within FP6 • Funding 2004 - 2006: 32 Mio € • Proposal for second phase submitted (2006 - 2008) • Emphasis is on • not software development • operating a production grid and supporting the end-users • Hardening, re-engineering and extending existing middleware functionality • Large collaboration • > 180 sites • 20 VO’s • > 800 registered users EGEE

  12. EGEE Security Framework EGEE

  13. EGEE Security Concepts EGEE

  14. Interoperability Shibboleth - gLite • Part of EGEE-2 proposal (by SWITCH in EGEE NREN Federation) • Focus is on • Interoperability (NO replacement for X.509) • Specific for EGEE infrastructure (VOMS etc) • Integrate, re-use, re-engineer existing code, write new code only as needed • Key Concepts: • Home institution of the user should be the Identity Provider • Home institution provides some attributes • But VO is needed for (grid specific) attributes • Proposal of doing work in three phases: • Two initial, shorter phases with the intention of hooking SWITCHaai up to the grid with a minimal amount of effort to have a working system • A third phase with adding support for SAML at the resource (service provider) Interop. Shib gLite

  15. Phase 1 and 2 • Note: • no changes at the Resource • Work is more than just software (policies) Interop. Shib gLite

  16. Access for Grid Users to Shib SP • Intention: add “symmetry” between enabling access for Shib and grid users • Test-bed between SWITCH and INFN in 2006 Interop. Shib gLite

  17. SAML Support at the Resource • Third (and main) phase of project • Goal: Support for SAML for authentication and authorization without relying on X.509 (on a configurable basis) • Should be based on SAML2 • Supports ECP Profile (constrained delegation) • Will be used in Shibboleth 2 Interop. Shib gLite

  18. Related Efforts • GridShib: • Emphasis is on providing attributes based authorization • Based on GT4 and Shib 1.3 • Beta version available since Sept 05 • OGSA authZ working group: • Defines specifications for basic interoperability and pluggability of authorization modules in OGSA framework • Condor Shibboleth Merger Project • Phase I: Shib enabled Condor web portal • Phase II: Shib enabled Condor fat client • Shibboleth - grid activities in UK • ESP-Grid • Further work is planned (JISC) to look at CA/Shib issues • Issue of attribute management between IdP and VO (e.g. Signet) Related Efforts

  19. Summary • There is interest and activity for interoperability AAI / Shibboleth - grid • But X.509 is still the standard security mechanism for grids (and likely to remain so for quite some time) • Issue is not only authentication but also attribute sharing between IdP, VO, SP • Opportunity and need for NREN and Grid communities to interoperate • GridShib: • beta version available • GT4 and Shib 1.3 • SWITCH participates in EGEE-2 to add interoperability Shibboleth - gLite • Pending approval by EU (expected in November) • We are interested in learn about other activities, share experiences and coordinate efforts

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