Fast Detection Of Mobile Replica Node Attacks in Wireless Sensor Networks


  Fast Detection Of Mobile Replica.ppt (Size: 775 KB / Downloads: 1)

Abstract

An adversary can capture and compromise unattended sensor nodes.
Make replicas and mount a variety of attacks.
Replica node attacks are dangerous.
They allow the attacker to leverage whole network.
Mobile replica node detection using the Sequential Probability Ratio Test.

Existing System

The adversary shares the compromised node’s keying materials and ID.
It spreads these replicas throughout the network.
Rely only on fixed sensor locations in static sensor networks.
Techniques :
Report location claims that identify their positions.
Tamper resistant hardware.

Drawbacks


The adversary, have keying materials that seem like authorized participants.
The security of unattended mobile nodes is extremely critical.
Possible to bypass Tamper resistance for a small number of nodes.
Location claims :
Approach requires fixed node locations, it cannot be used for mobile nodes.
The adversary can then leverage this insider position in many ways.
Network traffic
Jam legitimate signals from benign nodes
Inject falsified data

Proposed System

To design an effective, fast, and robust mobile replica detection scheme.
Detection scheme based on the Sequential Probability Ratio Test (SPRT) .
SPRT is performed on every node.
Using a null hypothesis that the mobile node has not been replicated .
The occurrence of speed that is less than system configured speed exceeds the system configured speed will lead to Null or Alternate Hypotheses.
Once the alternate hypothesis is accepted.
The replica nodes will be revoked from the network.
Also through quarantine analysis the replicas can impact the network is very limited.