Akshayappt

Enhanced Adaptive Acknowledgement[EAACK] -
A Secure Intrusion Detection Sysytem for MANETs
Akshaya Arunan
Guided By: Mrs Vrinda
Assistant Proﬀessor
MKALEIT041
February 12, 2015
Akshaya ArunanGuided By: Mrs VrindaAssistant Proﬀessor (MES College of Engineering)EAACK February 12, 2015 1 / 19

OUTLINE
1 OBJECTIVE
2 INTRODUCTION
Mobile Ad Hoc Networks(MANET)[3]
Attacks
3 LITERATURE SURVEY
4 PROPOSED SYSTEM
5 SCHEME DECRIPTION
6 CONCLUSION
7 REFERENCE

OBJECTIVE
EAACK demonstrates higher malicious behavior detection rates in certain
circumstances while does not greatly aﬀect the network performances.

INTRODUCTION
Most used networks - Wireless Local Area Network (WLAN).
A set of mobile nodes are connected to a ﬁxed wired backbone.
Short range
Risky

Mobile Ad Hoc Networks[3]
Self-conﬁguring.
Infrastructure-less network - without wires.
Each device is free to move independently in any direction
Example - A VANET (Vehicular Ad Hoc Network)- Allows vehicles to
communicate with roadside equipment.
Disadvantage - More vulnerable to attacks.

Atacks
Denial of service.
Eavesdropping.
Spooﬁng.

Figure : MANET

LITERATURE SURVEY
WATCHDOG[4]
TWOACK[5]
AACK[7]

WATCHDOG[4]
Aim: To improve throughput of network with the presence of malicious
nodes.
Consists of two parts:
Watchdog
Pathrater
Detection - Promiscuously listens to its next hops transmission.
If overhears that its next node failed - increases its failure counter.

Watchdog Limitations
Three problems of Watchdog scheme, namely:
Receiver collision
Limited transmission power
False misbehavior

Figure : RECIEVER COLLISION: Both node B and node X are trying to send
packet 2 to node c at the same time

Figure : LIMITED TRANSMISSION POWER: Node B limits its transmission
power so that the packet transmission can be overheard by node A but too weak
to reach node C

Figure : FALSE MISBEHAVIOUR REPORT: Node A sends back misbehaviour
report even though node B forwarded the packet to node C

TWOACK[5]
Aim: To resolve the receiver collision and limited transmission power
problems of Watchdog
TWOACK detects misbehaving links by
Acknowledging every data packets.
From the source to the destination.
Upon retrieval of a packet
Sends back an acknowledgement packet

Figure : TWOACK

AACK[7]
Similar to TWOACK, AACK is an acknowledgement based network layer
scheme.
ACK (identical to TWOACK) + End-to-End acknowledgement scheme
called ACK.
Reduces network overhead.

PROPOSED SYSTEM - EAACK[1]
Steps:
LOCAL INTEGRATION
GLOBAL INTEGRATION
HOME AGENT
CLASSIFIER

Description
LOCAL INTEGRATION: Self system and finds out the local anomaly
attacks.
GLOBAL INTEGRATION: Finds the intrusion result for entire network.
HOME AGENT: Gathers information about its system from application
layer to routing layer.
CLASSIFIER: The Home Agent calls the classifier construction to find out
the attacks.

Figure : PROPOSED SYSTEM ARCHITECTURE

SCHEME DESCRIPTION
EAACK consists of three major parts, namely:
Acknowledge (ACK)
Secure-Acknowledge (S-ACK)
Misbehaviour Report Authentication (MRA)

Figure : FLOW CHART OF EAACK

CONCLUSION
A comparative study of Secure Intrusion Detection Systems (SIDS) for
discovering malicious nodes and attacks on MANETs is presented.
Prevention mechanisms alone are not adequate to manage the secure
networks.
Thus, detection should be focused as another part before an attacker can
damage the structure of the system.

REFERENCE
[1] Elhadi M. Shakshuki - ”EAACK A Secure Intrusion Detection System
for MANETs” - International Journal of Latest Trends and Technology in
Engineering, 2013.
[2] R. Akbani, T. Korkmaz and G.V.S Raju - ”Mobile Ad hoc Network
Security” - Springer, 2012.

[3] D. Johnson and D. Maltz. - ”Dynamic Source Routing in Ad hoc
Wireless Networks” - Mobile Computing, Kluwer Academic Publishers,
1996.
[4] N. Kang, E. Shakshuki and T. Sheltami. - ”Detecting Misbehaving
Nodes in MANETs” - The 12th International Conference on Information
Integration and Web-based Applications Services, 2010.

[5] N. Kang, E. Shakshuki and T. Sheltami - ”Detecting Forged
Acknowledgements in MANETs” - The 25th International Conference on
Advanced Information Networking and Applications, 2011.
[6] Y. Kim - ”Remote Sensing and Control of an Irrigation System Using a
Distributed Wireless Sensor Network”- IEEE Transactions on
Instrumentation and Measurement, 2008.
[7]A. Patcha and A. Mishra - ”Collaborative Security Architecture for
Black Hole Attack Prevention in Mobile Ad hoc Networks” - Radio and
Wireless Conference, 2003.

THANK YOU.

Akshayappt

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