Software Networks With Predictive Emptive Certificate

Moreover, it is important to note that while cryptography is necessary for secure communications, this report is not by itself sufficient. The reader is advice then, that the topics covered in this paper only describe the first of the many steps necessary for better security in a number of situations.

(Samee Ullah Khan and Ishfaq Ahmad Department of Computer Science and Engineering University of Texas at Arlington, TX-76019, U.S.A.

The Ad-hoc network is a collection of mobile nodes which can communicate without each other with the help of wireless. There is no former communication infrastructure in MANETs [1]. There is no fixed infrastructure and centralized control in MANETs therefore nodes can communicate the network at any time. All nodes are supposed to be equal in processing power. All node can act either as a host or as a router to direct the packet from source to destination in the network. All nodes acts as routers and are capable of discovering and maintaining routes to propagate packets to the destinations.[2] There are lots of advantages promised of network in terms of cost and flexibility compared to network with infrastructures. Ad-hoc network are used for a great variety of applications such as data

Makerere University, Faculty of Computing and Information Technology, P.O. Box 7062, Kampala, Uganda, East Africa jlubeg@cit.mak.ac.ug 2 Department of Computer Science, University of Reading, P.O. Box 225, Whiteknights, Reading, Berkshire, RG6 6AY, United Kingdom shirley.williams@reading.ac.uk

On Lieskovsky et al\cite{Lieskovsky}, the authors present a solution for data distribution and replication in VANET(Vehicle Ad-hoc Networks) that allows the perception the whole VANET system as a simple distributed database system. However, the

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Group key management plays an important role in group communication. A common group key is required for individual users in the group for secure multicast communication. Group key have to be updated frequently whenever member joins and leaves in order to provide forward and backward secrecy. Forward secrecy ensures that an expelled member cannot gather information about future multicast communication and backward secrecy ensures that a joining member cannot gather information about past multicast communication [11]. For

Certic, S. (2013, February 18). The Future of Mobile Security. Computer Science - Cryptography and Security.

hacking threats. The main concern of this paper is to propose an efficient and secure air traffic

HC is the combination of VC and VuC where VC serves as both service provider and consumer at the same time. The motivation behind HC is that, vehicles moving on the road might rent their resources and might want to use cloud services at the same time. NaaS and P2P are the most suitable examples for such scenarios. Nevertheless due to the ephemeral nature of VANET, connection among vehicular nodes is very intermittent. But yet it can be argued that usually for P2P applications, the size of the files is fairly small making it suitable for short time connection. Other potential applications for this architecture include IaaS in case of VC.[3]

Vehicular communications (VC) will play a vital role in enabling safer, smarter and greener transportation, with envisioned applications providing, for example, warnings on environmental hazards (e.g., ice on the pavement), traffic and road conditions (e.g., emergency braking, congestion, or construction sites), and local (e.g., tourist) information.

Submitted in partial fulfillment of the requirements for the degree of Bachelor of Engineering in Computer Engineering

Abstract: In this paper, we study Group key agreement means multiple parties want to create a common secret key to be used to exchange information securely. The group key agreement with an arbitrary connectivity graph, where each user is only aware of his neighbor and has no information about the existence of other users. Further, he has no information about the network topology. We implement the existing system with more time efficient manner and provide a multicast key generation server which is expected in future scope by current authors. We replace the Diffie Hellman key exchange protocol by a new multicast key exchange protocol that can work with one to one and one to many functionality. We also tend to implement a strong symmetric encryption for improving file security in the system.

Fatima Alsaleh and Samir Elmasri PhD College of Computer and Information Systems, King Saud University, Saudi Arabia

The vehicle grid components (radios, access points, spectrum, standards and others) constitute the concept of VANET (Vehicle Adhoc Network) and they are going to be use in the build of car-to-car applications. There are a lot of emerging applications that are taking advantage of the VANET. The focus of this paper is to review the role of the Internet Infrastructure in supporting vehicular applications. The main different between the VANET and MANET (Mobile Ad hoc Networks) is that in VANET the wired Internet Infrastructure is accessible and omnipresent via Wi-Fi, DSRC, WiMAX, 3G, LTE.