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Abstract Intrusion tolerant services are usually im Intrusion tolerant services are usually implemented as replicated systems. If replicas execute identical software, then they share the same vulnerabilities and the whole system can be easily compromised if a single flaw is found. One solution to this problem is to introduce diversity by using different server implementations, but this increases the chances of incompatibility between replicas. This paper studies various kinds of incompatibilities and presents a new methodology to evaluate the compliance of diverse server replicas. The methodology collects network traces to identify syntax and semantic violations, and to assist in their resolution. A tool called DiveInto was developed based on the methodology and was applied to three replication scenarios. The experiments demonstrate that DiveInto is capable of discovering various sorts of violations, including problems related with nondeterministic execution. s related with nondeterministic execution.
Author João Antunes + , Nuno Ferreira Neves +
Booktitle Proceedings of the Symposium on Reliable Distributed Systems (SRDS)  +
Key Antunes11b  +
Month oct  +
NumPubDate 2,011.1  +
Project Project:MASSIF + , Project:DIVERSE +
ResearchLine Fault And Intrusion Tolerance in Open Distributed Systems (FIT) +
Title DiveInto: Supporting Diversity in Intrusion-Tolerant Systems  +
Type inproceedings  +
Url  +
Year 2011  +
Categories Publication  +
Modification dateThis property is a special property in this wiki. 14 January 2013 14:40:49  +
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