Proactive Obfuscation

dc.contributor.author	Roeder, Tom
dc.contributor.author	Schneider, Fred B.
dc.date.accessioned	2009-03-28T00:33:56Z
dc.date.available	2009-03-28T00:33:56Z
dc.date.issued	2009-03-28T00:33:56Z
dc.description.abstract	Proactive obfuscation is a new method for creating server replicas that are likely to have fewer shared vulnerabilities. It uses semantics-preserving code transformations to generate diverse executables, periodically restarting servers with these fresh versions. The periodic restarts help bound the number of compromised replicas that a service ever concurrently runs, and therefore proactive obfuscation makes an adversary's job harder. Proactive obfuscation was used in implementing two prototypes: a distributed firewall based on state-machine replication and a distributed storage service based on quorum systems. Costs intrinsic to supporting proactive obfuscation were quantified by measuring the performance of these prototypes.	en_US
dc.description.sponsorship	Supported in part by AFOSR grant F9550-06-0019, National Science Foundation Grants 0430161 and CCF-0424422 (TRUST), and Microsoft Corporation.	en_US
dc.identifier.uri	https://hdl.handle.net/1813/12138
dc.language.iso	en_US	en_US
dc.subject	fault tolerance	en_US
dc.subject	security	en_US
dc.subject	reliability	en_US
dc.subject	distributed systems	en_US
dc.title	Proactive Obfuscation	en_US
dc.type	article	en_US

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