Scientific knowledge map · Paper #9
PRISM: Privacy-Friendly Routing in Suspicious MANETs (and VANETs)
2008 · IEEE International Conference on Network Protocols (ICNP)
- Theory
- Applied
- protocol
Research question
What does the paper try to establish?
Can reactive routing in a suspicious MANET avoid persistent identities and global topology disclosure while still authenticating communicating nodes and supporting later accountability?
Central answer
What is the proposed answer?
PRISM makes communication location-centric and adapts AODV: a group-signed route request names a destination area and temporary key; a responding node returns its exact location and a session key encrypted to the source. Hash-linked route state hides persistent identifiers, and an offline group manager can open logged signatures after misbehavior. Simulations compare routing overhead and topology exposure with ALARM.
Evidence profile
Six dimensions, kept separate
The chart summarizes documented evidence and process. It is not a correctness probability, confidence score, or ranking, and no composite score is calculated.
LowMediumHighN/A = not assessed
A smaller value means less documented support for that dimension, not that the paper is false or unimportant.
- Epistemic evidence Medium
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The protocol and threat boundaries are detailed and overhead/topology exposure are simulated, but security is informal and no implementation, formal proof, or independent reproduction is supplied.
RREQ/RREP protocol Security analysis and active-insider boundary Simulation design and overhead results Topology-exposure results - Auditability High
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A fixed author-hosted full text is checked in with page count and hash, making protocol details, caveats, and simulation claims directly inspectable.
Author-copy provenance RREQ/RREP protocol Topology-exposure results - Production provenance Medium
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Named authorship, author-copy provenance, and official metadata are documented; roles, revisions, tool use, and simulation lineage are not.
Author-copy provenance Official publication metadata - External scrutiny Medium
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The paper has an official full-conference publication record; review reports, formal verification, and independent reproduction were not located.
Official publication metadata - Reception Low
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No citations were verifiably located in the constrained dated search. Under the author's 0-8 rule this is low, but it is not a claim that the paper has no citations.
Citation search attempted - Contribution significance High
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PRISM articulates a location-centric alternative to identity-centric reactive routing, integrates privacy with accountability, and quantifies the topology/overhead tradeoff.
Problem, goals, and contributions RREQ/RREP protocol Topology-exposure results Conclusions and future work
Assessment: Ai draft author review pending · 2026-07-11 · rubric 0.2. These dimensions describe documented support and process, not truth, correctness, or a universal ranking. No composite score is calculated.
Top-down and bottom-up view
Hierarchical knowledge map
Collapse a branch for a top-level reading, or follow its source links and child nodes to audit the evidence and boundaries underneath it.
PRISM
A privacy-oriented, location-centric reactive MANET routing protocol using group-signed requests and replies, temporary keys, and offline accountability.
Problem, goals, and contributions Official publication metadata-
question Research question
research questionCan on-demand routing protect movement privacy without preshared source-destination secrets, online identity servers, or full topology advertisement?
Problem, goals, and contributions -
contribution Central answer
proposed and simulatedAddress a geographic area, authenticate only the source and responding destination with unlinkable group signatures, and keep intermediate state under hashes of one-time route messages.
RREQ/RREP protocol Simulation design and overhead results Topology-exposure results -
scope Location-centric environment explicitly scoped
Communication decisions are assumed to depend on current areas rather than persistent identities; nodes have GPS-like location, uniform range, public-key capability, and predeployment credentials from an offline TTP.
Environment, adversary, and trust assumptions-
threat model Adversary model
explicitly scopedOutsiders may be active or passive, but insiders in the primary privacy analysis are honest-but-curious. DoS, topology attacks, false location claims, and other active-insider behavior are excluded from the core guarantee.
Environment, adversary, and trust assumptions Security analysis and active-insider boundary
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protocol PRISM route discovery specified
A RREQ contains a destination area, temporary public key, timestamp, and source group signature. A destination returns the RREQ hash, exact location, session key encrypted to the temporary key, and its group signature.
RREQ/RREP protocol-
component Hash-linked route state
specifiedIntermediate nodes cache request and reply hashes and forward unchanged messages; the two hashes identify the established bidirectional route without exposing stable source or destination names.
RREQ/RREP protocol
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claim group Privacy and authentication claims informally argued
Fresh group signatures and keys resist cross-route linkage, the MANET-wide key hides routing from outsiders, and source/destination logs let the TTP de-anonymize disputed messages later.
Security analysis and active-insider boundary Offline audit of excessive probing-
limitation Active-insider attacks
explicitly vulnerableA member can lie about location, suppress or drop messages, create Sybil replies, or probe many areas. Some probing can be detected only after logs are submitted; real-time prevention is not provided.
Security analysis and active-insider boundary Offline audit of excessive probing
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evidence group PRISM versus ALARM simulation
Simulations use 100 nodes under random-waypoint and reference-point group mobility, varying the number of destination areas to compare routing messages and topology exposure.
Simulation design and overhead results Topology-exposure results-
result Workload-dependent efficiency and exposure
simulation supportedPRISM has lower total routing traffic than ALARM when each source contacts relatively few areas and exposes a smaller topology fraction; its advantage shrinks as destination probing grows, and discovery can take longer.
Simulation design and overhead results Topology-exposure results
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limitation group Applicability limits
materialEmpty destination areas cause timeout or expansion, destination interests are visible in RREQs, hop count is not verified, evaluation simplifies to at most one receiver per area, and no implementation or formal proof is supplied.
Environment, adversary, and trust assumptions RREQ/RREP protocol Security analysis and active-insider boundary Conclusions and future work -
artifact Artifacts
paper available no codeA fixed author copy is available locally; protocol implementation, simulator code/configuration, and result data were not located.
Simulation design and overhead results Author-copy provenance -
scrutiny Scrutiny
peer reviewedPRISM appeared at IEEE ICNP 2008 and explicitly compares itself with ALARM and other anonymous routing designs; independent reproduction was not located.
Simulation design and overhead results Official publication metadata
Audit trail
Source index
Locators state the depth of the current audit. PDF page numbers, where present, are one-based file pages; metadata-, summary-, and abstract-bounded records explicitly identify their limitations.
- Problem, goals, and contributions Abstract and Sections I-II, PDF pages 1-3
- Environment, adversary, and trust assumptions Section III, PDF pages 3-4
- RREQ/RREP protocol Section IV-A-C, PDF pages 4-6
- Security analysis and active-insider boundary Section IV-D, PDF pages 6-7
- Offline audit of excessive probing Section IV-D, PDF page 7
- Simulation design and overhead results Section VI and Figures 1-3, PDF pages 8-9
- Topology-exposure results Section VI.3 and Figure 4, PDF page 9
- Conclusions and future work Section VII, PDF page 9
- Author-copy provenance Public UCI author-hosted PDF
- Official publication metadata DOI 10.1109/ICNP.2008.4697044
- Citation search attempted Exact-title search, 2026-07-11; no verified count retrieved