SECURITY ISSUES IN MOBILE AD-HOC NETWORKMukul A. Khairatkar

AGENDA

Introduction to MANET

Various Security Model

Operations

Introduction to IPSec

IPSec Operation

Simulation Details

Conclusion

MOBILE AD-HOC NETWORK

No Infrastructure No Server Nothing Everybody acts like a Router Security Problem

Network Resources Source Spoofing Eavesdropping Data Transformation

SECURITY

Key Pre-Distribution Scheme Web of Trust Public Key Certification IPSec

SOME SECURITY TERMS

Public Key

Private Key

Digital Signature

Certificate

Digital Signature

Certificate Of Authority

Certificates

Public Key Infrastructure

X.509

KEY PRE-DISTRIBUTION SCHEME

Node 1

Node 3

Node 4

Node 2

Key

Key

Key

Key

Key

Key

WEB OF TRUST

Node 1

Node 2

Node 3

PGP

PGP

PGP

Public

Key

Public Key

PUBLIC KEY INFRASTRUCTURE

X.509

Certificate Authority CA

CA CA Root Certificate

Root certificate

Distributed with Web Browser ..etc

SSL/TLS web pages

IPSEC

Why IPSec?

Open Standard Freely Available

Modular

Integrates in Existing IP structure

Transparent to application layer entities

For IPv6

SECURITY ARCHITECTURE

MODES

Transport Mode Payload Encrypted IP header is Intact Routing is Intact

Tunnel Mode New IP packet New Routing NW-NW Communication (tunnel)

IPSEC PACKET

NETWORK MODEL

IP TUNNEL

PERFORMANCE

FOR AD-HOC NETWORK

IPSEC FOR AD-HOC

IP Cloud

Subnet 1 Subnet 2

SECURITY

PROBLEMS

Latency Increases

Overhead Increases

Throughput Decreases

Complexity Increases

CONCLUSION

Ad-hoc Network uses various security

methods

Do not violate existing protocol

IPSec is a new approach to secure IPv4 and

IPv6 packets

Better approach can be used than IPSec

REFERENCES

[1] Trust- and Clustering-Based Authentication Services in Mobile Ad Hoc Networks, Edith C. H. Ngai and

Michael R. Lyu ,Department of Computer Science and Engineering ,The Chinese University of Hong Kong, IEEE

2004.

[2] Secure Ad Hoc Networking, Panagiotis Papadimitratos, Virginia Polytechnic Institute and State University,

IEEE 2006.

[3] Data Security in Ad hoc Networks Using MultiPath Routing, Souheila BOUAM. Jalel HEN-O rlIMAN

Laboratoirc CNRS-PRiSM. University of Versailles.

[4]Securing Ad-Hoc Networks by IPSEC, Abhrajit Ghosh, Telcordia Technologies Applied Research Piscataway,

NJ, IEEE paper 2004.

[5] Securing Ad Hoc Networks, Lidong Zhou and Zygmunt J. Haas Cornell University, IEEE 1999.

[6] C. Adams and S. Farrell “Internet X.509 Public Key Infrastructure Certificate Management Protocols”, RFC

2510, Mar 1999

[7] K. Young et. al. “Ad Hoc Mobility Protocol Suite for the MOSAIC ATD”, Milcom 2003.

[8] D. Boneh and M. Franklin “Identity based encryption from the Weil pairing”, SIAM J. of Computing, Vol. 32,

No. 3, pp. 586-615, 2003.