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In this article we discuss our research in developing general and systematic methods for intrusion detection. The key ideas are to use data mining techniques to discover consistent and useful patterns of system features that describe program and user behavior, and use the set of relevant system features to compute (inductively learned) classifiers that can recognize anomalies and known intrusions...
Many computer security technologies are at risk of proving failure to their extreme vulnerability. Our computers defense mechanisms have been going on for years now and yet have not resulted in an extremely flexible set of protections. Organizations focus on the ability of security technology to minimize risks but threats to computer security are continuing. In other disciplines, looking to nature...
Current routing protocols in WSNs or even in wireless Ad hoc networks are very susceptible to many attack i.e. stealthy attack. The most simple among those is where the adversary injects malicious routing information into the network. This results in routing inconsistencies leading to high increase in end-to-end delays or even packet losses in the network. In our paper, first, we abstract two fundamental...
Replication is used in data grid to enhance data availability and fault tolerance. The random burst of data requests may increase the frequency of dynamic replication thus putting system nodes under heavy storage load and delaying execution of jobs. We propose a load balancing replication strategy, Fair-Share Replication(FSR) that takes into account both the access load and storage load of the replica...
Wireless sensor networks have recently emerged as an important means to study and interact with physical world. In previous era, castles were surrounded by moats (deep trenches, filled with water, and even alligators) to prevent or discourage intrusion attempts. Today one can replace such barriers with stealthy and wireless sensors. In this paper, we develop mathematical foundations model using barriers...
Wireless sensor networks are increasingly being used in applications where QoS and low cost are the overriding considerations. Conventional schemes of using sensor nodes and incorporating these three phenomena (reliability, availability and serviceability) to attain QoS can effectively improve not only the reliability of the overall WSNs but security as well. We discuss the reverse look of QoS and...
Ecommerce technology can reduce poverty by improving people's access to educations, healthy, government and financial services. Ecommerce also can help small farmers and artisans by connecting them to markets. It is clear that in rural and urban East African countries (EAC) as well as in much of the developing world-realization of this potential is not guaranteed. We study a simple bilateral model...
The emergence of e-commerce has changed the way business is done world-wide. Opportunities have arisen for initiating new international and domestic business ventures. As individuals and businesses increase information sharing, vulnerability to attack or intrusion rises. Therefore, security is a necessity in an e-commerce transaction. The purpose of this paper is to investigate and present the new...
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