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PPT foe EAACK which is an IDS for MANETs
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A Secure Intrusion-Detection
System for MANETs using EAACK scheme
1
By
Kshirsagar Sachin Laxman
WCE sangli.
Content
EAACK-Secure IDS For MANET's
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Introduction
Problem Statement
Objectives
Methodology
References
Introduction to MANETs
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Mobile Ad hoc Network(MANET) –
collection of mobile nodes equipped with both a wireless transmitter and a receiver that communicate with each other via bidirectional wireless links
No need of infrastructue
Vulnerable to malicious attacks
Types
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single-hop network:
-Nodes communicate directly
multi-hop network :
-relay of messages by neighbors
IDS in MANET
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Assumption that all nodes cooperate
Significant impact if some nodes are compromised
IDS work as a second layer in MANETS
IDS in MANET
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Watchdog
TWOACK
AACK
Watchdog
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Watchdog and pathrater
capable of detecting malicious nodes misbehaviors
in network
if node fails to forward packet within time,
increases failure counter
Problems with Watchdog
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1. False Misbehavior :
Node A sends back a misbehavior report even
through node B forwarded the packet to C
Fig:False Misbehavior
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2. Limited Transmission Power:
Node B intentionally limits its transmission power
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3)Receiver collision
TWOACK
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resolve receiver collision and limited transmission power problem
AACK
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combination of TACK and end to end ACK
first ACK is used if it fails switch to TACK
Digital Signature
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Digital Signature is an authentication mechanism
which Provide valid acknowledgement in manet.
Fig: communication with Digital signature
Problem Statement
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Design and implementation of an intrusion detection system
for Mobile Adhoc Networks using EAACK scheme.
Objectives
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Study of different Intrusion Detection Systems for MANETs
Study of NS2 and other required softwares.
Implementation of IDS for MANETs using
EAACK scheme.
Use of digital signatures in the EAACK scheme.
Comparison of EAACK performance analysis with other contemporary approaches like ACK and TWOACK
EAACK
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Enhanced Adaptive ACKnowledgement
Solves 3 problems with watchdog
EAACK consists of three major parts:
1.ACK
2.S-ACK
3.MRA
ACK
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Basically end to end acknowledgement.
Works as hybrid scheme in EAACK
S-ACK
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improved version of TWOACK
let every three consecutive nodes work in a group
to detect misbehaving nodes.
misbehavior report switch the system to MRA
mode
MRA
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resolve weakness of watchdog of detecting misbehaving nodes.
a) Source node
1)checks local knowledge base
2)if no path use DSR and send MRA to destination
b)Destination node
1)checks local knowledge base
2)if packet received then falsify the report
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Refferences
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[1] EAACK – A Secure Intrusion Detection System for MANETs Elhadi M. Shakshuki, Senior Member, IEEE, Nan Kang and Tarek R. Sheltami, Member, IEEE
[2]K. Liu, J. Deng, P. K. Varshney, and K. Balakrishnan, “An acknowledgment-based approach for the detection of routing misbehaviour in MANETs,” IEEE Trans. Mobile Comput., vol. 6, no. 5 pp. 536–550
[3] S. Marti, T. J. Giuli, K. Lai, and M. Baker, “Mitigating routing misbehaviour in mobile adhhoc networks,” in Proc. 6th Annu. Int. Conf. Mobile Comput. Netw., Boston, MA, 2000, pp. 255–265
[4] T. Sheltami, A. Al-Roubaiey, E. Shakshuki, and A. Mahmoud, “Video transmission enhancement in presence of misbehaving nodes inMANETs,” Int. J. Multimedia Syst., vol. 15 no. 5, pp. 273–282, Oct. 2009.
[5] J.-S. Lee, “A Petri net design of command filters for semiautonomous mobile networks,” IEEE Trans. Ind. Electron., vol. 55, no. 4,pp. 1835–1841, Apr. 2008.
[6] N. Kang, E. Shakshuki, and T. Sheltami, “Detecting forged acknowledgements in MANETs,” in Proc. IEEE 25th Int. Conf. AINA, Biopolis Singapore, Mar. 22–25, 2011, pp. 488–494.
[7] Nat. Inst. Std. Technol., Digital Signature Standard (DSS) Federal Information Processing Standards Publication, Gaithersburg, MD, 2009, Digital Signature Standard (DSS).
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THANK YOU