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- Genre: Masters Thesis
Description
In modern healthcare environments, there is a strong need to create an infrastructure that reduces time-consuming efforts and costly operations to obtain a patient's complete medical record and uniformly integrates this heterogeneous collection of medical data to deliver it to the healthcare professionals. As a result, healthcare providers are more willing to shift their electronic medical record (EMR) systems to clouds that can remove the geographical distance barriers among providers and patient. Even though cloud-based EMRs have received considerable attention since it would help achieve lower operational cost and better interoperability with other healthcare providers, the adoption of security-aware cloud systems has become an extremely important prerequisite for bringing interoperability and efficient management to the healthcare industry. Since a shared electronic health record (EHR) essentially represents a virtualized aggregation of distributed clinical records from multiple healthcare providers, sharing of such integrated EHRs may comply with various authorization policies from these data providers. In this work, we focus on the authorized and selective sharing of EHRs among several parties with different duties and objectives that satisfies access control and compliance issues in healthcare cloud computing environments. We present a secure medical data sharing framework to support selective sharing of composite EHRs aggregated from various healthcare providers and compliance of HIPAA regulations. Our approach also ensures that privacy concerns need to be accommodated for processing access requests to patients' healthcare information. To realize our proposed approach, we design and implement a cloud-based EHRs sharing system. In addition, we describe case studies and evaluation results to demonstrate the effectiveness and efficiency of our approach.
ContributorsWu, Ruoyu (Author) / Ahn, Gail-Joon (Thesis advisor) / Yau, Stephen S. (Committee member) / Huang, Dijiang (Committee member) / Arizona State University (Publisher)
Created2012
Description
Very little experimental work has been done to investigate the psychological underpinnings of perceptions of privacy. This issue is especially pressing with the advent of powerful and inexpensive technologies that allow access to all but our most private thoughts -and these too are at risk (Farah, Smith, Gawuga, Lindsell, &Foster;, 2009). Recently the Supreme Court ruled that the use of a global positioning system (GPS) device to covertly follow a criminal suspect, without first obtaining a search warrant, is a violation of a suspect's fourth amendment right to protection from unlawful search and seizure (United States v. Jones, 2012). However, the Court has also ruled in the past that a law enforcement officer can covertly follow a suspect's vehicle and collect the same information without a search warrant and this is not considered a violation of the suspect's rights (Katz v. United States). In the case of GPS surveillance the Supreme Court Justices did not agree on whether the GPS device constituted a trespassing violation because it was placed on the suspect's vehicle (the majority) or if it violated a person's reasonable expectation of privacy. This incongruence is an example of how the absence of a clear and predictable model of privacy makes it difficult for even the country's highest moral authority to articulate when and why privacy has been violated. This research investigated whether public perceptions of support for the use of each surveillance technique also vary across different monitoring types that collect the same information and whether these differences are mediated by similar factors as argued by the Supreme Court. Results suggest that under some circumstances participants do demonstrate differential support and this is mediated by a general privacy concern. However, under other circumstances differential support is the result of an interaction between the type of monitoring and its cost to employ -not simply type; this differential support was mediated by both perceived violations of private-space and general privacy. Results are discussed in terms of how these findings might contribute to understanding the psychological foundation of perceived privacy violations and how they might inform policy decision.
ContributorsBaker, Denise, M.S (Author) / Schweitzer, Nicholas J (Thesis advisor) / Newman, Matt (Committee member) / Risko, Evan (Committee member) / Arizona State University (Publisher)
Created2012
Description
This thesis, Impressive Mastermind, examines notions of privacy and the law, particularly with regard to the USA Patriot Act implemented following the events of 9/11. The author/artist believes that numerous freedoms related to personal privacy, especially those rights protected by the Fourth Amendment, were diminished in order to ostensibly seek out potential terrorists. Through the vehicle of a theatrical dance performance, Impressive Mastermind investigates these privacy issues on a public and personal level and also asks the audience to question their own views on government policies regarding personal privacy, including illegal search and seizure. Drawing on the previous work of other intervention artists, this thesis explores the realm of public intervention. Moving away from the usual spectacle of traditional theater, this multi-dimensional piece explores an experiential examination of how the public relates to what is real and what is considered performative.
ContributorsFerrell, Rebecca A (Author) / Murphey, Claudia (Thesis advisor) / Dove, Simon (Committee member) / Mcgurgan, Melissa (Committee member) / Arizona State University (Publisher)
Created2011
Description
Sparked by the Virginia Tech Shooting of 2007 and the resultant changes to the Family Educational Rights and Privacy Act, a review was conducted of FERPA's impact on university policies regarding student privacy and safety. A single, private university's policies were reviewed and a survey was distributed to 500 campus employees who had recently completed the university's FERPA training to determine if the university's current training was effective in training employees to understand FERPA's health and safety exceptions clause. The results showed that while the university's training was effective in training employees how to safeguard students' academic records, employees did not have a clear understanding of which information they could or should share in response to a threat to health and safety or to which university entity they should route safety concerns. The survey suggests that the university's FERPA training should be expanded to include training on FERPA's health and safety exceptions, including the communication of clear reporting lines for possible threats to campus safety and security.
ContributorsGilbert, Byron Jesse (Author) / Edwards, David A. (Thesis advisor) / Hild, Nicholas R. (Committee member) / Peterson, Danny M. (Committee member) / Arizona State University (Publisher)
Created2010
Description
Mobile Augmented Reality (MAR) is a portable, powerful, and suitable technology that integrates 3D virtual content into the physical world in real-time. It has been implemented for multiple intents as it enhances people’s interaction, e.g., shopping, entertainment, gaming, etc. Thus, MAR is expected to grow at a tremendous rate in the upcoming years, as its popularity via mobile devices has increased. But, unfortunately, the applications that implement MAR, hereby referred to as MAR-Apps, bear security issues. Such are imaged in worldwide recorded incidents caused by MAR-Apps, e.g., robberies, authorities requesting banning MAR at specific locations, etc. To further explore these concerns, a case study analyzed several MAR-Apps available in the market to identify the security problems in MAR. As a result of this study, the threats found were classified into three categories. First, Space Invasion implies the intrusive modification through MAR of sensitive spaces, e.g., hospitals, memorials, etc. Then, Space Affectation means the degradation of users’ experience via interaction with undesirable MAR or malicious entities. Finally, MAR-Apps mishandling sensitive data leads to Privacy Leaks. SpaceMediator, a proof-of-concept MAR-App that imitates the well-known and successful MAR-App Pokémon GO, implements the solution approach of a Policy-Governed MAR-App, which assists in preventing the aforementioned mentioned security issues. Furthermore, its feasibility is evaluated through a user study with 40 participants. As a result, uncovering understandability over the security issues as participants recognized and prevented them with success rates as high as 92.50%. Furthermore, there is an enriched interest in Policy-Governed MAR-Apps as 87.50% of participants agreed with restricted MAR-Apps within sensitive spaces, and 82.50% would implement constraints in MAR-Apps. These promising results encourage adopting the Policy-Governed solution approach in future MAR-Apps.
ContributorsClaramunt, Luis Manuel (Author) / Ahn, Gail-Joon (Thesis advisor) / Rubio-Medrano, Carlos E (Committee member) / Baek, Jaejong (Committee member) / Arizona State University (Publisher)
Created2022