One of the major challenges facing the security community today is how to prevent DE. DE is the unauthorized release of information from a computer system or network of systems. Current methods attempt to address this issue by controlling the information that is released over the Internet. In this paper, we present a host-level discretionary access control method that focuses on exfiltration vi...

Twitter is one of the most prominent social media platforms nowadays. A primary reason that has brought the medium at the spotlight of academic attention is its real-time nature, with people constantly uploading information regarding their surroundings. This trait, coupled with the service’s data access policy for researchers and developers, has allowed the community to explore Twitter’s potent...

The Freeband I-Share project aims to define the mechanisms for trust, willingness, resource discovery and sharing mechanisms in virtual communities. To improve the secure and performance of a 3D video streaming application, which is a research vehicle of the I-Share project, we propose a virtual community based access control approach for secure service discovery and access (VICSDA) which group...

Social networking is an essential part of life for people around the world these days. Social networking is a form of social media, used for interactive, educational, informational or entertaining purposes. Even though social media comes in many forms all of them are related to each other. Social networking is also a tool to create and join groups, learn about latest news and events, play games...

In an Ubiquitous Computing environment, sensors are actively collecting data, much of which can be very sensitive. Data will often be streaming at high rates (video and audio) and it must be dealt with in real-time. Protecting the privacy of users is of central importance. Effective solutions for controlling access to data in ubicomp settings remain to be developed. Dealing with these issues wi...

In this article we present RNET MAC a novel MAC protocol to be used in wireless ATM (WATM) environments. The MAC protocol features a distributed control for media access. Therefore RNET MAC ts well for spontaneous network setups and frequent network con guration changes. We discuss some design options and show basic performance results of RNET MAC in di erent network scenarios such as fully mes...

In this paper we describe three separate Media Access Control (MAC) address spoofing attacks that, when deployed in specific yet common layer 2 network topologies, circumvent Cisco’s port security. We show first that, with full knowledge of the network, the vendor recommended implementation of port security is both ineffective at preventing all three of these attacks, and actually decreases the...

In order enhance the network efficiency of Mobile ad hoc Networks (MANETs), an Power Unbiased Cooperative Media Access Control(PUC-MAC) protocol in MANETs was planned during this paper. It adopted the most effective partnership choice statement to select the cooperative node with higher channel condition, higher passing rate and additional balanced power consumption. Simulation results showed t...

ODMAC (On-Demand Media Access Control) is a recently proposed MAC protocol designed to support individual duty cycles for Energy Harvesting Wireless Sensor Networks (EH-WSNs). Individual duty cycles are vital for EH-WSNs, because they allow nodes to adapt their energy consumption to the ever-changing environmental energy sources. In this paper, we present an improved and extended version of ODM...

In this article we present RNET MAC-a novel MAC protocol to be used in wireless ATM (WATM) environments. The MAC protocol features a distributed control for media access. Therefore RNET MAC ts well for spontaneous network setups and frequent network connguration changes. We discuss some design options and show basic performance results of RNET MAC in diierent network scenarios such as fully mes...