A security architecture for Mobile Ad Hoc Networks

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Security in Mobile Ad-Hoc Network Ramchandra Reddy Research Work By (07571A12 37 )

Introduction of Ad-Hoc Networks:

Above Figure: - A small examples for Peer to Peer communication. A Mobile Ad Hoc Network (MANET) is a self-organizing, infrastructure less, multi-hop network, Ad-hoc networks are configured to communicate from machine to an other machine ( peer to peer), And it allows you to communicate with other wireless Ethernet systems without using a wireless access point, The wireless and distributed nature of MANETs poses a great challenge to system security designers. Introduction of Ad-Hoc Networks

What is the difference between wireless mesh networks and mobile ad hoc networks?:

What is the difference between wireless mesh networks and mobile ad hoc networks? A wireless mesh network is a type of ad hoc network. The difference would be that, In wireless network, a central node which is called "base station" or "access point" exists in the network that all the connections are done through this central node. I mean if node ‘A’ wants to send a packet to node ‘B’, the process is as follow: A Central Node B. But when we configure the network in ad hoc mode, every couple of nodes can communicate with each other independent of the central node. I mean if node ‘A’ wants to send a packet to node, the process is as follow: A B.

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A security architecture for Mobile Ad Hoc Networks There are five main security services for MANETs:- Authentication, Confidentiality, Integrity, Non-Repudiation, Availability.

Classic example of Ad hoc network hacking:-:

Classic example of Ad hoc network hacking:- Attacker Above Figure: - A group of people establish a wireless network through their laptops.

Introduces Related Work to Security in MANETs:-:

Introduces Related Work to Security in MANETs:- Providing basic security infrastructure, Secure routing, Misbehavior/Intrusion detection and response.

Providing basic security infrastructure:

Misbehavior/Intrusion detection & response:- Misbehaviors and intrusion are different, Intrusion means an attack launched by adversaries, Misbehavior usually means “selfish” nodes that do not contribute their resources to the maintenance of network connectivity. Providing basic security infrastructure The first step is to setup the basic security infrastructure and establish security associations between communicating nodes, The MANET network should have a system pair PK/SK. Secure routing : There are two concepts in secure routing:- Exchanging outing information to keep the network connected, secure data packet forwarding, Security-Aware Ad-hoc Routing (SAR), Shortest route Secure route Secure Node with the key Other nodes in the network

OSI reference model’s:

OSI reference model’s A layered architecture can provide such advantages as Modularity, Simplicity, Flexibility, & Standardization of protocols.

Firewall (computing):

Firewall (computing) Part of a computer system or network, Which block unauthorized access, It can be implemented in either hardware or software (Layer1 or Layer7), or a combination of both.

Proposed Security in MANETs:-:

Proposed Security in MANETs:- In this paper we proposed a five-layer security architecture for MANETs, SL5 End-to-End Security SL4 Network Security SL3 Routing Security SL2 Communications Security SL1 Trust Infrastructure

CONCLUSIONS :

CONCLUSIONS In this work we have dealt with security issues in mobile ad hoc networks. We have focused on designing a security architecture in tackling security challenges mobile ad hoc networks are facing. We present a security architecture in a layered view and analyze the reasoning for such a security architecture “ The way you live, Is the way you leed ” , “ The way you leed, Is the technology you use “ , “ The technology you use, Is the Security it provide “ .

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ACKNOWLEDGEMENTS I would like to thank the collage Sree Visvesvaraya Institute of Technology & Science for supporting this research work. And also I thank Smt. G.SWAPNA, Assistant professor for the department Information Technology, for her invaluable guidance throughout the compilation of this paper. REFERENCES B. Dahill, B. Levine, E. Royer, and C. Shields. A Secure Routing Protocol for Ad Hoc Networks. Technical Report UM-CS-2001-037, CS Dept, Routing Security in Ad Hoc Networks, Janne Lundberg, Helsinki University of Technology.