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Observations on the CAS architecture made from the Generic AAA perspective.

Observations on the CAS architecture made from the Generic AAA perspective. 3rd Global Gridforum Oct. 7-10th 2001 Frascati - Italy Leon Gommans lgommans@science.uva.nl University of Amsterdam Advanced Internet Research Group. Objectives. Give a better feeling of AAA environments.

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Observations on the CAS architecture made from the Generic AAA perspective.

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  1. Observations on the CAS architecture made from the Generic AAA perspective. 3rd Global Gridforum Oct. 7-10th 2001 Frascati - Italy Leon Gommans lgommans@science.uva.nl University of Amsterdam Advanced Internet Research Group GGF - 3 / Leon Gommans - UvA

  2. Objectives • Give a better feeling of AAA environments. • AAA concepts regarding user administration in multi-domain environments. • Envisaged examples: • Role generic AAA in combination with CAS expanded towards the user • Role generic AAA in combination with CAS expanded towards the service. • More info: http://www.aaaarch.org GGF - 3 / Leon Gommans - UvA

  3. USER SERVICE ORGANIZATION USER HOME ORGANIZATION ISP AAA UU.NL ALICE@ UU.NL NETWORK ACCESS SERVERS RADIUS ALICE ANNE ARIE ……. AAA BOB@ UVA.NL RADIUS AAA UVA.NL RADIUS BILL BOB CAROL ……. Internet Roots • AAA roots in the “dial-in” environment where NAS use AAA servers to Authenticate & Authorize users and allow Accounting. • Need was generated by recognition that user-administration at or near the service equipment does not scale very well. GGF - 3 / Leon Gommans - UvA

  4. The “VO” from AAA perspective • Example based on a highly simplified model of the SURFNET “Student Online” facility. • The “VO” can be defined as the group of students and University Employees. The VO is offered free internet access if they belong to any Dutch University • User administration is done by each individual university • Each university is responsible for their own users towards the service. GGF - 3 / Leon Gommans - UvA

  5. Flexibility of AAA allows: • User organizations to outsourcing their dail-in service to one or more 3rd parties. • Service organizations to host multiple organizations requiring dail-in facilities. • Agreements can be implemented using a standards based protocol (RADIUS). • RADIUS allows User organizations or Agents to migrate to other Service Providers. • An agent, using proxy AAA to change its service without affecting the agreement with its customers. • A service organization to have ultimate authority over its users. GGF - 3 / Leon Gommans - UvA

  6. USER SERVICE ORGANIZATIONS ISP-A ANNE@ UU.NL NETWORK ACCESS SERVERS AAA USER HOME ORGANIZATIONS BILL@ UVA.NL RADIUS RADIUS AAA UU.NL ALICE ANNE ARIE ……. Internet AAA UVA.NL ISP-B ALICE@ UU.NL NETWORK ACCESS SERVERS BILL BOB CAROL ……. RADIUS AAA BOB@ UVA.NL RADIUS Internet GGF - 3 / Leon Gommans - UvA

  7. USER SERVICE ORGANIZATIONS ISP-A ANNE@ UU.NL NETWORK ACCESS SERVERS AAA USER HOME ORGANIZATIONS AGENT BILL@ UVA.NL RADIUS RADIUS AAA UU.NL RADIUS ALICE ANNE ARIE ……. Internet Proxy AAA AAA UVA.NL ISP-B RADIUS ALICE@ UU.NL NETWORK ACCESS SERVERS BILL BOB CAROL ……. RADIUS AAA BOB@ UVA.NL RADIUS Internet GGF - 3 / Leon Gommans - UvA

  8. AAA PUSH MODEL USER HOME ORGANIZATION USER CAS User authentication & authorization AAA can play a role in both area’s SERVICE ORGANIZATION GRID RESOURCES Resource Management in combining resources GGF - 3 / Leon Gommans - UvA

  9. USER SERVICE ORGANIZATIONS ASP-A BILL@ UVA.NL CAS GRID RE- SOURCES USER HOME ORGANIZATIONS UU.NL ALICE.UU.NL ANNE.UU.NL ARIE.UU.NL BILL.UVA.NL BOB.UVA.NL CAROL.UVA.NL ……. UVA.NL ASP-B ALICE@ UU.NL GRID RE- SOURCES GGF - 3 / Leon Gommans - UvA

  10. USER SERVICE ORGANIZATIONS AGENTS USER HOME ORGANIZATIONS ASP-A AAA MIT.EDU BILL@ UVA.NL AL AMY ANN AAA GRID RE- SOURCES CAS A AAA UU.NL ALICE ANNE ARIE ……. AAA UVA.NL CAS B ASP-B BILL BOB CAROL ……. ALICE@ UU.NL AAA GRID RE- SOURCES AAA INFN.IT DARIO FABRIZIO GIORGIO ……. Possible AAA role in user authentication & authorization ? GGF - 3 / Leon Gommans - UvA

  11. USER CAS ALICE@ UU.NL SERVICE ORGANIZATIONS ASP-A ASP-B AAA AAA BROKER BROKER GRID RE- SOURCES GRID RE- SOURCES GRID RE- SOURCES GRID RE- SOURCES GRID RE- SOURCES GRID RE- SOURCES Possible AAA role in resource management ? GGF - 3 / Leon Gommans - UvA

  12. Thank you http://www.aaaarch.org GGF - 3 / Leon Gommans - UvA

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