PPT foe EAACK which is an IDS for MANETs

1. A Secure Intrusion-Detection
System for MANETs using EAACK
scheme
1
By
Kshirsagar Sachin Laxman
WCE sangli.

2. Content
EAACK-Secure IDS For MANET's
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 Introduction
 Problem Statement
 Objectives
 Methodology
 References

3. 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

4. Types
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 single-hop network:
-Nodes communicate directly
 multi-hop network :
-relay of messages by neighbors

5. 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

6. IDS in MANET
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 Watchdog
 TWOACK
 AACK

7. 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

8. 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

9. 9
2. Limited Transmission Power:
 Node B intentionally limits its transmission power
EAACK-Secure IDS For MANET's

10. EAACK-Secure IDS For MANET's
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3)Receiver collision

11. TWOACK
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 resolve receiver collision and limited transmission
power problem


12. AACK
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combination of TACK and end to end ACK
first ACK is used if it fails switch to TACK

13. Digital Signature
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 Digital Signature is an authentication mechanism
which Provide valid acknowledgement in manet.
Fig: communication with Digital signature

14. Problem Statement
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 Design and implementation of an intrusion detection system
for Mobile Adhoc Networks using EAACK scheme.

15. 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

16. 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

17. ACK
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 Basically end to end acknowledgement.
Works as hybrid scheme in EAACK

18. 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

19. 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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21. 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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