Security of WSNs Based on a Trust-Aware Shell

Miss. Ketaki Deshmukh

(Amrutvahini College of Engineering)

Overview

• Introduction

• Existing System

• Proposed System

• Architectural Diagram

• Features

• Application

• Future Scope

• Conclusion

• References

What is WSN?

• A sensor node wirelessly sends messages to a base station via multi-hop path

Fig: Wireless sensor network

Introduction

• Security of WSNs

• Trust Aware Shell :A robust trust aware routing framework for dynamic

WSNs

provides trustworthy and energy-efficient route

effective against harmful attacks

Existing System

• Hackers aggravate network conditions

• A traditional techniques does not address the severe problems:tampering nodescreate traffic collisiondrop or misdirect messages in routesjam the communication channel by creating radio

interference

Proposed System

• Protect WSNs from the harmful attacks exploiting the replay of routing information

• Centres on trustworthiness and energy efficiency

• Allow existing routing protocols to incorporate our implementation

• No tight time synchronization & known geographic information

Attacks on WSN

Selective forwarding

Wormhole attack

Sinkhole attack

Sybil attack

Wormhole Attack

Sinkhole Attack

Architectural Diagram

Energy Watcher

Neighbor Energy Cost

Neighborhood Table

Fig. Working of Energy Watcher

Energy Watcher

ENb = EN–>b + Eb

ENb: Average Energy Cost.

EN–>b:Average Energy Cost of successfully delivering a data packet from N to its neighbour b.

Eb: Energy Cost for b.

Trust Manager

• Trust manager is to get neighbor trust level from a neighborhood table

Fig: Example To Illustrate Working Of Trust Manager

Secure Routing With Trust Evaluation

Malicious Node

Source node

Destination Node

Source node

Response Node 1

Destination Node

Response Node 2

Source node

Malicious Node

Destination Node

(a)Routing request

(b)Routing response

(c)Data conformation form the destination node

Example

Fig: Trust manager level table

Features

High Throughput

Energy efficient

Scalable

Adaptable

Disadvantages

Low Latency

No Balanced Network Load

Denial-Of-Service Attacks cannot be addressed

Applications

Mobile Target Detection in the Presence of an Anti-Detection Mechanism

Authenticated Routing

Node-to-Node Key Agreement

Secure Military Application

Healthcare Application

Conclusion

References

• G. Zhan, W. Shi, and J. Deng, “Tarf: A trust-aware routing framework for wireless sensor networks,” in Proceeding of the 7th European Conference on Wireless Sensor Networks (EWSN’12), 2012.

• F. Zhao and L. Guibas, Wireless Sensor Networks: An Information Processing Approach. Morgan Kaufmann Publishers, 2004.

• C. Karlof and D. Wagner, “Secure routing in wireless sensor networks: attacks and countermeasures,” in Proceedings of the1st IEEE International Workshop on Sensor Network Protocols and Applications, 2003.

• M. Jain and H. Kandwal, “A survey on complex wormhole attack in wireless ad hoc networks,” in Proceedings of International Con-ference on Advances in Computing, Control, and Telecommunication Technologies (ACT ’09), 28-29 2009

Thank You!