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Middleboxes present new requirements that need to be integrated with traffic engineering applications that are already complex and consider myriad factors (e.g., routing, QoS, load-balancing). While it is possible to revisit traffic engineering algorithms to explicitly integrate middleboxes, such an approach is not compositional. Existing efforts at compositional SDN application development do not...
Mobile ad hoc networks (MANETs) play a significant role for communication whenever infrastructure is not available. In MANET, the group communication-based applications use the multicast routing protocol, where there is a single sender node and a group of receiver nodes. The benefits of multicast routing protocols are the capability to reduce the communication costs and saving the network resources...
Mobile ad hoc networks (MANET) is a type of networks that consists of autonomous nodes connecting directly without a top-down network architecture or central controller. Absence of base stations in MANET force the nodes to rely on their adjacent nodes in transmitting messages. The dynamic nature of MANET makes the relationship between nodes untrusted due to mobility of nodes. A malicious node may...
Delay Tolerant Network is a buzz word in Mobile Adhoc Network. Research in this direction started with the approach for interplanetary communication. Delay Tolerant Network (in short) DTN is an evolving research area. A way to store, carry and forward messages over the underlying existing infrastructure. The intermittent connectivity and limited resources of a DTN node make the routing difficult to...
In this paper, we address the problem of routing disruption attacks in Cognitive Radio Networks (CRNs). In routing disruption attacks, the malicious node intentionally drop data packets to consume more network resources or degrade routing performance. We propose a trust management model to mitigate such attacks in CRNs. Through monitoring forwarding behaviors of secondary users (SUs), trusts of SUs...
5G Networks are anticipated to provide a diverse set of services over Network Slices (NS) using Network Function Virtualization (NFV) technologies. We propose solutions to enable NS selection and routing of traffic routing through a NS. A framework for enabling negotiation, selection and assignment of NSs for requesting applications in 5G networks is presented. A definition for service description...
In this paper, for secure routing optimization we are introducing dynamic trust management protocol in information centric network and delay tolerant network (DTN) environments. In the existing system, dynamic trust management for DTN is used to deal with the detection of the selfish, malicious misbehaving nodes and genuine loss nodes. To disrupt DTN operations, malicious nodes performing trust-related...
P2P networks constitute the foundation for many scalable and fault-tolerant applications. These networks may consist of millions of peers due to their decentralized design. While each peer advertises the same service interface, the actual data provided by common large-scale P2P applications often yields an imbalance, i.e., particular peer subsets are more frequently contacted than the rest of the...
WSN is a wide area communication, because of its wide variety of applications. The main limitations in WSN are its limited battery or energy, BW, memory and wireless communication capability. In traditional approach each sensor node is used to sense the surrounding environment and communicate with the sink node hence the battery consumption and bandwidth utilization is more. To overcome these two...
The Internet consists of a large number of interconnected heterogeneous ASs (Autonomous Systems), each owned and administered by an autonomous organization. Traffic in each AS is forwarded by routers that maintain a coherent picture of the network topology using an intra-AS routing protocol. The most popular intra-AS routing protocols are link-state protocols, such as OSPF and IS-IS. An attacker who...
Modern society is becoming increasingly dependent on various communication networks such as the Internet and the sensor networks. These networks need strong security measures to keep the traffic secure. If the security fails, many aspects of the society may suffer. In this paper, we address the network security challenge by focusing on one integral part of the network functionality: routing. Using...
Some unique attributes of P2P networks such as cost efficiency and scalability, contributed for the widespread adaptation of these networks. Since P2P applications are mostly used in file-sharing, preserving anonymity of users has become a very important subject for researchers. As a result, a lot of methods are suggested for P2P networks to preserve anonymity of users. Most of these methods, by relying...
Security is a major challenge in Opportunistic Networks (OppNets) due to its characteristics of being an open medium with dynamic topology, there is neither a centralized management nor clear lines of defence. A packet dropping attack is one of the major security threats in OppNets as neither source nodes nor destination nodes have any knowledge of when or where a packet will be dropped. In this paper,...
Detecting and handling routing loops is a critical issue in the design of anonymous peer-to-peer content sharing networks (apCSNs). A principal requirement of such a scheme is that it should not leak any message forwarding information that can undermine the user anonymity of the resulting apCSN. A number of loop handling schemes have been developed in apCSNs such as Freenet and GNUnet. However, they...
In this paper we present a distributed self organizing trust based clustering framework for securing ad hoc networks. The mobile nodes are vulnerable to security attacks, so ensuring the security of the network is essential. To enhance security, it is important to evaluate the trustworthiness of nodes without depending on central authorities. In our proposal the evidence of trustworthiness is captured...
Routing in Mobile ad hoc Sensor Network (MASNet) have become a dynamic research area owing to its impact on various science and engineering applications. A secure multipath algorithm has been presented in this research which facilitates the nodes in MASNet to execute on-demand discovery and forming set of paths. An Enhanced Secure Multipath Routing (ESMR) is formed with an adaptive behaviour on route...
Rapid advances in wireless ad hoc networks lead to increase their applications in real life. Since wireless ad hoc networks have no centralized infrastructure and management, they are vulnerable to several security threats. Malicious packet dropping is a serious attack against these networks. In this attack, an adversary node tries to drop all or partial received packets instead of forwarding them...
Information centric networking (ICN) architectures represent a conceptual shift from naming end-hosts in the Internet to naming content directly, and require either significant changes to the existing IP infrastructure or replacing it entirely. We present iDNS (information-centric DNS), an evolutionary path towards deploying ICN at Internet scale based on modifications to the DNS that leave the current...
Content Delivery Network (CDN) improves large scale data delivery with widely distributed data replicas; But the fundamental goal of IP is to connect two hosts. As a consequence, request routing, which selects the best server to serve the requested data, is introduced to meet the mismatch between CDN and IP. In contrast to IP, Named Data Networking (NDN) makes content the first-class citizen of the...
Ad-hoc networks are collection of self-organized, autonomous nodes (routers) and capable to communicate directly with neighbors' node through broadcast packet in within transmission range. Ad hoc network has a primary concern to provide protected communication between mobile nodes. In transmission channel, nodes can be a malicious node and compromise or breaches service, which makes security extremely...
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