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Panel: Dynamic Security in Active Networks

Panel: Dynamic Security in Active Networks. Roy Campbell University of Illinois at Urbana-Champaign. Panel: U of I Proposal. Dynamic Security Policies Secure Active Node Architecture Reference Monitor Active Capabilities Network Administration. Architecture: Dynamic Security Policies.

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Panel: Dynamic Security in Active Networks

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  1. Panel: Dynamic Security in Active Networks Roy Campbell University of Illinois at Urbana-Champaign

  2. Panel: U of I Proposal • Dynamic Security Policies • Secure Active Node Architecture • Reference Monitor • Active Capabilities • Network Administration

  3. Architecture: Dynamic Security Policies • Security is a Foundation!!! No afterthought. • Node security/integrity guarantees • A universal policy is inadequate for Active Networks • Allow varied security schemes for anticipated unknown applications

  4. Reference Monitor • All accesses to node resources go through reference monitor • Core security services verify the signature on the active capability • Reference monitor evaluates the active capability to check access

  5. Active Capabilities • Global capabilities • Specify access user has to node resources, independent of execution environment • Issued by the administrator • Local capabilities • Specific capabilities issued by the Administrative E.E. in response to global ones

  6. Network Administration • Administrative Execution Environment capsules have highest priority • Preempt all other capsules • Policy change • Capability revocations • Certificate revocations • Universal naming of node resources (e.g. like SNMP)

  7. Secure Active Node Architecture Resource Reference & Local Capability Local Capability Revocation Policy Change Flow Flow Flow Flow Flow Flow EE EE Admin. EE Node OS Core Reference Monitor Node Resources

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