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Identifying time measurement tampering in the traversal time and hop count analysis (TTHCA) wormhole detection
Jonny Karlsson1, Laurence S Dooley, Göran Pulkkis
1Department of Communication and Systems, The Open University, Walton Hall, Milton Keynes, UK. jonny.karlsson@arcada.fi
Sensors (Basel, Switzerland)
|May 21, 2013
Summary
This study introduces ∆T Vector, an enhancement to the Traversal Time and Hop Count Analysis (TTHCA) algorithm for mobile ad hoc networks (MANET). It effectively detects time tampering attacks in participation mode wormholes, improving security.
Area of Science:
- Computer Science
- Network Security
Background:
- Mobile ad hoc networks (MANET) are vulnerable to wormhole attacks.
- Traversal Time and Hop Count Analysis (TTHCA) is a detection algorithm for MANETs.
- Participation Mode (PM) wormholes can evade TTHCA by altering time measurements.
Purpose of the Study:
- To analyze the conditions enabling time tampering attacks in PM wormholes.
- To introduce an extension to TTHCA to detect time tampering.
- To maintain low false positive rates in wormhole detection.
Main Methods:
- Analysis of time tampering attack conditions in PM wormholes.
- Development of the ∆T Vector extension for TTHCA.
- Simulation of the enhanced TTHCA algorithm.
Main Results:
- Identified prevailing conditions for successful time tampering attacks.
- ∆T Vector effectively detects time tampering attacks.
- The extension preserves low false positive rates.
Conclusions:
- The ∆T Vector extension significantly enhances the security of the TTHCA algorithm.
- This provides a robust defense against time tampering in MANETs.
- The proposed method improves the reliability of wormhole detection.
