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Published byDeirdre West Modified over 9 years ago
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Project Orda Secure Key Distribution Over Ad Hoc Networks Security in Ad Hoc Networks – Team A Lane Westlund, Roderic Campbell, Mark Allen, Dima Novikov, David Campbell
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Agenda Review of Iolus, Key Graph Theories Goals & Non-Goals Schedule Review Current Status System Overview Testing & Performance Demonstration
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Review of Iolus, Key Graph Theories Goal of the Papers: Scalable, secure strategy for securely distributing re-key messages As previously explained, Group-Oriented Re-keying: –Takes advantage of multicasting to send re-key messages –Needs small number of messages on join/leave –Outperforms User- and Key-Oriented Re-key
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Review of Iolus, Key Graph Theories (Cont’d) Problems with paper: –Makes assumptions about server’s capabilities –Ignores common problems (mass drop-off, etc.) –Doesn’t map well to ad hoc setting
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Goals & Non-Goals Goals –Secure Key Distribution –Scalable Key Distribution –No Static Central Authority/Server –Dynamic Topology –Mass Drop-Off Tolerant –Unique Keys for Each Server
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Goals & Non-Goals Non-Goals –User authentication –Access control –Malicious initial user –Preventing attacks by trusted members –Simultaneous joins
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System Overview Implemented our own rekeying algorithm, which uses ideas from the Iolus and Key Graph papers. Minimizes necessary messages for secure key distribution Algorithm example...
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Schedule Week 5: –Implementation –Class testing –Limited integration –Code review Week 6: –Implementation –Unit testing (contractual) –Unit integration –Code review Week 7: –Full integration –Stress testing –Documentation finalization Week 8: –Submit project
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Current Status Not Mass-Join Tolerant Synchronization Issues Demo Application Works with Orda
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Testing & Performance Constant-time (roughly 12 seconds on CS machines) system updating after a user has left Could not test scalability effectively
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Demonstration & Questions Code, javadoc, paper on website: http://www.cs.rit.edu/~p590-01a/ http://www.cs.rit.edu/~p590-01a
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