Trapdoor Oneway Function used in encryption etc'

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Trapdoor One-way Function(used in encryption
etc.)

• Easy to set the trapdoor
• Hard to open the trapdoor
• But easy to open it if know the trapdoor key

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ANODR (anonymousuntraceable)

• Add route untraceability
• Untraceability
• Enemies cannot follow a packet flow to next hops,
  in particular the source and the destination
• Intrusion Tolerance
• Ensures no single point compromise in ad hoc
  routing
• Must capture all forwarding nodes to obtain
  source and receiver information
• Add route pseudonym update neighborhood traffic
  mixing
• More efficient, suitable for mobile ad hoc
  networks

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Multi-hop Broadcast-based Anonymity Model
D
S
(RtREQ Route REQuest)
(RtREP Route REPly)
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• TBO trapdoor boomerang onion
• TBOA KA(src)
• TBOB KB(NB, KA(src))
• TBOC KC(NC, KB(NB, KA(src)))
• TBOD KD(ND, KC(NC, KB(NB, KA(src)))
• routing picture

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New Multi-path ANODR

• The destination normally receives multiple RREQs
• Sends back multiple RREPs to establish multiple
  anonymous paths
• These paths are disjointed when RREQ forwarding
  is appropriately designed
• Help to improve performance metrics like data
  delivery ratio, end-to-end latency

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New Actual Cryptographic Operations in TBO

• Adding real encryption functions (e.g., RC5, AES,
  3DES) in TBO processing
• To verify that ANODRs cryptographic design works
• E.g., random onion collision also considered
• A new approach in network security protocol
  simulation (no previous work published)
• A security emulation Actual cryptographic
  algorithm matters!

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Improvement on delivery fraction when multipath
is added to ANODR
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Tradeoff number of control packet for multi-path
ANODR will increase
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Average data path length with multi-path
decreases b/c a later possible shorter path maybe
found
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