Modular Over-the-Wire Configurable Security for Long-Lived Critical Infrastructure Monitoring Systems

Solum, E., Hauser, C., Bakken, D., Chakravarthy, R.

ACM International Conference on Distributed Event-based Systems (DEBS '09). ACM, New York, NY, USA, Article 13, 9 pages, 2009.

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This paper presents a modular, software-based, over-the-wire configurable, end-to-end security architecture for critical infrastructure monitoring systems. The architecture provides mechanisms allowing it to evolve, during operation, over the long lifetimes typically encountered in these systems by allowing security modules to be securely added and replaced at runtime. Our security architecture addresses these systems' need for high-performance secure multi-cast with modules for confidentiality, integrity, authentication, and obfuscation. The variety of available modules provides tradeoffs between performance and security now and for the future. Experimental performance results for various existing modules, in the context of the architecture, are presented. To achieve long system lifetime a secure management system, using protocols based on symmetric-key cryptography, is described.

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