Protecting patients’ electronic health records using enhanced active bundles

We propose a solution that provides protection for patients' electronic health/medical records disseminated among different authorized healthcare information systems. The solution is known as Active Bundles using a Trusted Third Party (ABTTP). It is based on the use of trusted third parties, and the construct named active bundles. The latter keep electronic health/medical records as sensitive data; include metadata with information describing sensitive data and prescribing their use; and encompass a virtual machine (VM), which controls and manages how its active bundle behaves. An essential task of the VM is enforcement of the privacy and other policies specified by metadata. We also propose enhancements to the ABTTP scheme. They include adding to ABTTP an algorithm finding the degree of privacy policy inclusion between two privacy policies, and a scheme, known as Agent-Based Active Bundles, which replaces trusted third parties with intelligent agents

A simulation study of ad hoc networking of UAVs with opportunistic resource utilization networks

Specialized ad hoc networks of unmanned aerial vehicles (UAVs) have been playing increasingly important roles in applications for homeland defense and security. Common resource virtualization techniques are mainly designed for stable networks; they fall short in providing optimal performance in more dynamic networks---such as mobile ad hoc networks (MANETs)---due to their highly dynamic and unstable nature. We propose application of Opportunistic Resource Utilization Networks (Oppnets), a novel type of MANETs, for UAV ad hoc networking. Oppnets provide middleware to facilitate building flexible and adaptive distributed systems that provide all kinds of resources or services to the requesting application via a helper mechanism. We simulated a homeland defense use case for Oppnets that involves detecting a suspicious watercraft. Our simulation compares performance of an Oppnet with a baseline case in which no Oppnet is used. The simulation results show that Oppnets are a promising framework for high-performance ad hoc UAV networking. They provide excellent performance even under imperfect (and realistic) conditions, such as a less invasive use of helpers, denial of help by some of the candidate helpers, and imperfect detection capabilities of Oppnet components