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Survivability Panel. Gene Tsudik gts@ics.uci.edu UC Irvine. http://sconce.ics.uci.edu. What it is…. Survivability is the ability of a network computing system to provide essential services in the presence of attacks and failures, and recover full services in a timely manner. Or:
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SurvivabilityPanel Gene Tsudik gts@ics.uci.edu UC Irvine http://sconce.ics.uci.edu WITS'2002 Survivability Panel
What it is… • Survivability is the ability of a network computing system to provide essential services in the presence of attacks and failures, and recoverfull services in a timely manner. Or: • the ability of a system to continue to fulfill its mission in the presence of attacks, accidents, or failures (see CERT, http://www.cert.org/nav/index_purple.html and ISW’2000 CFP, respectively) WITS'2002 Survivability Panel
Resilient, ubiquitous, impossible-to-get-rid-of Garden WEED What it is… (imho) But, when I think of Survivability what comes to mind is WITS'2002 Survivability Panel
Well-written, stealthy, impossible-to-get-rid-of computer VIRUS What it is… (imho) Or, better yet: WITS'2002 Survivability Panel
So: • Q: Can we learn from weeds? • A: Probably; look out for papers drawing useful analogies and proposing to mimic weed DNA… • E.g., tumbleweed --- a mobile • weed! Alas, mobile only after death! WITS'2002 Survivability Panel
So: • Q: Can we learn from viruses? • A: I think so. • Caveat: we might not like what we learn… WITS'2002 Survivability Panel
What it is… (imho) What also comes to mind is: DARPA-speak (buzzword) Probably invented by some well-meaning study group WITS'2002 Survivability Panel
Seriously: • Survivability research is (likely) an attempt to unify: • Fault-tolerance in distributed systems (e.g., byzantine robustness, consensus) • Cryptographic techniques (e.g., threshold, proactive crypto) • Intrusion detection/response technology WITS'2002 Survivability Panel
Survivability and I Projects: • SUCSES: mediated encryption/signatures technology; fast revocation • CLIQUES, CLIQUES II: key management for dynamic peer groups • IMAHN: reliable broadcast in high-speed MANETs WITS'2002 Survivability Panel
Survivability and I • Multi-round protocols • N-party protocols (N>2) E.g., DPG key management must be “survivable” (handle arbitrary nested membership events) • RAMPART • CLIQUES • ENSEMBLE KM WITS'2002 Survivability Panel