Survivability Panel

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SurvivabilityPanel
Gene Tsudik gts_at_ics.uci.edu UC Irvine
http//sconce.ics.uci.edu
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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
• 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.ht
ml and ISW2000 CFP, respectively)
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What it is (imho)

• But, when I think of
• Survivability
• what comes to mind is

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What it is (imho)

• Or, better yet

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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!
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So

• Q Can we learn from viruses?

A I think so. Caveat we might not like what
we learn
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What it is (imho)

• What also comes to mind is

DARPA-speak (buzzword)
Probably invented by some well-meaning study
group
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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

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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

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Survivability and I

• Multi-round protocols
• N-party protocols (Ngt2)
• E.g., DPG key management must be survivable
  (handle arbitrary nested membership events)
• RAMPART
• CLIQUES
• ENSEMBLE KM