MANET comprises mobile nodes, which are links to each other by wireless connections without any base infrastructure. MANETs are vulnarable to security attack due to thier features such as autonomus nature, infrastructure-less network and multi-hop communication. Therefore every node in MANET must be secure; node security can be provided by using node authentication techniques. Every node in manet consists of resources such as battery power, bandwidth, memory to keep routing information. These resources provided by MANET node are limited resources. MANET faces various security attacks; one of them is flooding attack whose aim is to drain off limited resources of MANET node by continuously sending Route Request control Packet, false route information or fake data packets. The main goal of our approach is to provide resource aware node authentication framework to prevent flooding attack in MANET.
Keywords: MANET, Node authentication, Flooding Attack, AODV.
Introduction
MANET comprises mobile nodes, which links to each other by wireless connections without any base infrastructure. MANET is an ad hoc network, therefore a node in MANET can join or leave the network at any time. In a MANET, every node has to co-operate with each other to forward packets hop-by-hop (see Fig 1). Therfore, every node acts as host as well as router. MANETs are highly vulnerable to security attacks because of their features such as autonomus nature, infrastructure-less network, multi-hop communication. Since all nodes in MANET receive data transimtted by a node, a malicious node could easily obtain data being transmitted in the network. Also, because of multi-hop communication MANET faces security problems during route discovery and packet for...
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The fundamental reason why security protocols are implemented in networks is simple – to protect data as it traverses the network. The mechanism associated with protecting data on its travels is called cryptography. This particular mechanism employs algorithms which encrypt data so that hackers are prevented from easily intercepting the data. Cryptography operates in tandem with a group of protocols which help to control the passing of data between network devices. Therefore, security protocols are a vital component in networks in order to increase data security and without them security would be compromised (Linn, 2014).
In conclusion, the information covered in this paper shows the different types of security that is associated with each level of the standard OSI model. From the physical layer to the application layer, each layer has a different type of security which must be applied at each layer to prevent any security leaks, spoofing, and infinite loops. These are just a few of the different vulnerabilities that must be protected on a WLAN or LAN.
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...s at a slight non-negligible cost, we cannot take chance by allowing the nodes to communicate without any authentication, as the network is wireless, any node (say, malicious) can join a cluster or intercept the transmission range of other valid nodes and then can transmit its’ information. Thus, authentication is also as important as routing.
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Abstract— Trusted Computing Group (TCG) is providing a great effort to provide network security at every level, that’s why the technologies of trusted computing group are spreading very rapidly and will become the most leading technologies in next few years. Always there are Threats to networks, which create need for some features to secure the network at end point admission. The flow of information must be confident and data integrity measures should also be followed. The models provided by trusted computing group provides high and powerful security features, TNC: Trusted Network Connect is a technology provided by TCG, which provides security both at hardware and software platforms. TNC is basically used for NAC (Authentication Purpose). The Architecture of NAC provides a clear background of how a network can be made secure and how to avoid unauthorized access. IEEE 802.1x is a standard which provide port based network access control and protect the network from unauthorized access. If the access register is unauthorized then access is given but access is not given when the access is unauthorized. IEEE 802.1x is basically used for authentication and authorization purpose. This paper aims to review the literature of trusted computing in context of trusted network connect and 802.1x port based authentication using NAC.
Insecure medium- In VANET, due to broadcasting nature communication is not secure. It is hard for these networks to support different ...
In recent years, Mobile ad hoc network is used due to increasing number of mobile devices such as mobile phones, laptops, PDA etc., An ad hoc network consists of infrastructure based ad hoc network that depends on pre-constructed infrastructure made of fixed nodes and infrastructure less ad hoc network that does not depend on pre-existing infrastructure and it is dynamically cooperate with set of independent nodes. A Mobile ad hoc network is self-organized network without infrastructure connected by wireless links. Due to de-centralized infrastructure, a node can act both as router and host. The nodes can directly communicate each other within their transmission range otherwise the multi-hop network is needed. The mobile ad hoc network is widely used in day-to-day life such as military operations where an infrastructure is unknown to the soldiers. Web services like e-mail can be used for file transfer and it also used in multimedia applications. It is also used in disaster recovery such as earthquake, tsunamis etc. In MANET, the nodes are free to move, it will change its connection to other devices frequently. An important issue in MANET is routing between two nodes, due to the changing topology of the network. The routing protocol should be secure to protocol to protect against network attacks such as Black hole attack, worm hole attack, Dos attack, grey hole attack. Mostly AODV, DSR, DSDV are prone to the attacks. Research work concentrates in the field of routing and security. MANET has attacks in all the layers. In the physical layer jamming, intercept and eavesdrop attacks may occur. In the data link layer, traffic analysis, monitoring, disruption may occur. In the network layer, wormhole, black hole, byzantin...
...obile Sink Replica In Wireless Sensor Network And Authenticate It With Key Distribution” (IJERT), ISSN:2278-0181, Vol. 2 Issue 6, June 2013.
This paper is going to discuss wireless security from a broad view where I will go into why exactly wireless security is so important especially today as the ways in which we are communicating is changing dramatically. From there I will discuss the multiple wireless securities that are available to give a better understanding of the options given. Then I will go into why exactly not protecting your wireless can be so dangerous with some descriptions on the most dangerous wireless attacks out there today. Finally I will then discuss how we can better prepare for these types of attacks with a synopsis on several effective security methods that will help to ensure data is securely passed and kept hidden.
Without proper protection, any part of any network can be susceptible to attacks or unauthorized activity. Routers, switches, and hosts can all be violated by professional hackers, company competitors. In fact, according to several studies, more than half of all network attacks are waged internally. To determine the best ways to protect against attacks, we should understand the many types of attacks that can be instigated and the damage that these attacks can cause to data. The most common types of attacks include Denial of Service (DoS), password, an...
Introduction: This is a 21th century, technology is the most important and improved thing of the human life. It makes life easier and faster. Development of faster sophisticated technology we have better and fast life. So all we are connect each other by computer network. There are two different way of network: Wired and wireless. Now day we can found network almost everywhere. Home, business, public place, Airport, Planes, hospitals, school, train everywhere we can found networking. Therefore, almost every sector of the economy that has affected by wired and wireless technology. Wired network and wireless protect both has security, But in general wireless network is less secure than wired networks. For proper security AP (access point) and its antenna should be right position. Also add a wireless access point or use a wireless router we can connect to network wirelessly. AS we using more and more of devices (smart phones, tablet and computers) rely on wireless networking, we have to improve our network security too.
Rayne, PB, Kulkarni, P, Patil, S & Meshram, BB 2012, ‘Authentication and Authorization:Tool for Ecommerce Security’, Engineering Science and Technology: An International Journal, vol. 2, no. 1, pp. 150-157.