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Enhancing Multicast Networks: Security, User Identification, and Accounting Solutions at Concordia

The Concordia University High-Speed Protocols Laboratory addresses the challenge of generating revenue from multicast networks. This initiative focuses on integrating security, user identification, and comprehensive accounting solutions to create a fully AAA-enabled IP multicast environment. Key collaborations with the IETF's MBONED Working Group outline the essential requirements for multicast accounting and a robust AAA framework, recognizing the necessity of Quality of Service and effective participant management. The laboratory's ongoing PhD research contributes to innovative mechanisms and policies to enhance multicast network deployment and security.

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Enhancing Multicast Networks: Security, User Identification, and Accounting Solutions at Concordia

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  1. Group Communications at Concordia J. William Atwood High Speed Protocols Laboratory Concordia University Montreal, Quebec, Canada

  2. Problem Statement • No one can make money using multicast • Solution • Add Security • Add User Identification • Add (distributed) Accounting Group Communications at Concordia

  3. IETF Mboned Working Group • Multicast Accounting Requirements • draft-ietf-mboned-macct-req-04.txt • Multicast AAA Framework • draft-ietf-mboned-multiaaa-framework-02.txt Group Communications at Concordia

  4. IETF Multicast Accounting Requirements • What is needed for a “fully AAA enabled IP multicast network”? • Recognition that “proprietary solutions” are not desirable • Recognition that requirements include provision of Quality of Service • 14 identified functional requirements Group Communications at Concordia

  5. IETF Framework • Provides a framework for AAA • End User (EU) • Content Provider (CP) • Network Service Provider (NSP) Group Communications at Concordia

  6. An Architecture for Group Management • More interacting components than are discussed in the IETF work • Actors • Content provider (CP) • Merchant (MR) • Financial Institution (FI) • Network Service Provider (NSP) • End User (EU) Group Communications at Concordia

  7. Component Interactions CP MR FI NSP EU EU EU Group Communications at Concordia

  8. Requirements • Identify participants (Authentication) • Authorize Participants (Authorization) • Account for resource usage • Authenticate sender • Confidentiality (if required) Group Communications at Concordia

  9. Subdividing the CP and NSP • Content provider • Content server • Network Service Provider • AAA Server • Core Routers • Access Routers Group Communications at Concordia

  10. Sequence of Actions CP MR FI NSP EU AAAS NAS/AR NAS/ AR CR CR EU NAS/AR RP CR CR EU NAS/AR Group Communications at Concordia

  11. Status 1 • Key management • PhD Dissertation on use of Proxy Encryption completed • MCS Thesis on Packet Manipulation completed • Visiting colleague: paper on use of HIP Group Communications at Concordia

  12. Status 2 • User Identification and AAA • MCS Thesis on EU/AR/AAAS interactions completed • PhD Dissertation on mechanisms and policies in progress – presented today Group Communications at Concordia

  13. Status 3 • Deployment • PhD Dissertation on deployment strategies and mechanisms almost completed Group Communications at Concordia

  14. Status 4 • Securing the business and financial interactions • MCS Thesis completed • PhD Dissertation beginning Group Communications at Concordia

  15. For more information • http://users.encs.concordia.ca/~bill/hspl • bill@cse.concordia.ca Group Communications at Concordia

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