Matching Items (5)
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- All Subjects: Smartphones
- Creators: Doupe, Adam
- Creators: Langer, Shelby
- Resource Type: Text
Description
Android is currently the most widely used mobile operating system. The permission model in Android governs the resource access privileges of applications. The permission model however is amenable to various attacks, including re-delegation attacks, background snooping attacks and disclosure of private information. This thesis is aimed at understanding, analyzing and performing forensics on application behavior. This research sheds light on several security aspects, including the use of inter-process communications (IPC) to perform permission re-delegation attacks.
Android permission system is more of app-driven rather than user controlled, which means it is the applications that specify their permission requirement and the only thing which the user can do is choose not to install a particular application based on the requirements. Given the all or nothing choice, users succumb to pressures and needs to accept permissions requested. This thesis proposes a couple of ways for providing the users finer grained control of application privileges. The same methods can be used to evade the Permission Re-delegation attack.
This thesis also proposes and implements a novel methodology in Android that can be used to control the access privileges of an Android application, taking into consideration the context of the running application. This application-context based permission usage is further used to analyze a set of sample applications. We found the evidence of applications spoofing or divulging user sensitive information such as location information, contact information, phone id and numbers, in the background. Such activities can be used to track users for a variety of privacy-intrusive purposes. We have developed implementations that minimize several forms of privacy leaks that are routinely done by stock applications.
Android permission system is more of app-driven rather than user controlled, which means it is the applications that specify their permission requirement and the only thing which the user can do is choose not to install a particular application based on the requirements. Given the all or nothing choice, users succumb to pressures and needs to accept permissions requested. This thesis proposes a couple of ways for providing the users finer grained control of application privileges. The same methods can be used to evade the Permission Re-delegation attack.
This thesis also proposes and implements a novel methodology in Android that can be used to control the access privileges of an Android application, taking into consideration the context of the running application. This application-context based permission usage is further used to analyze a set of sample applications. We found the evidence of applications spoofing or divulging user sensitive information such as location information, contact information, phone id and numbers, in the background. Such activities can be used to track users for a variety of privacy-intrusive purposes. We have developed implementations that minimize several forms of privacy leaks that are routinely done by stock applications.
ContributorsGollapudi, Narasimha Aditya (Author) / Dasgupta, Partha (Thesis advisor) / Xue, Guoliang (Committee member) / Doupe, Adam (Committee member) / Arizona State University (Publisher)
Created2014
Description
Through a standpoint feminist perspective (Harding 2009) I conducted a situational analysis (Clarke, 2015) that examined academic literature and cancer support discussion boards (DBs) to identify how Western biomedicine, specifically oncology, can integrate complementary and alternative medicine (CAM) to improve cancer treatment in children. The aims of this project were: 1) to identify the CAM treatments that are being used to alleviate the side effects from oncological treatments and/or treat pediatric cancers; 2) to compare the subjective experience of CAM to Western biomedicine of cancer patients who leave comments on Group Loop, Cancer Compass and Cancer Forums, which are online support groups (N=20). I used grounded theory and situational mapping to analyze discussion threads. The participants identified using the following CAM treatments: herbs, imagery, prayer, stinging nettle, meditation, mind-body therapies and supplements. The participants turned to CAM treatments when their cancer was late-stage or terminal, often as an integrative and not exclusively to treat their cancer. CAM was more "effective" than biomedical oncology treatment at improving their overall quality of life and functionality. We found that youth on discussion boards did not discuss CAM treatments like the adult participants, but all participants visited these sites for support and verification of their cancer treatments. My main integration recommendation is to combine mind-body CAM therapies with biomedical treatment. This project fills the gap in literature that ignores the ideas of vulnerable populations by providing the experiences of adult and pediatric cancer patients, and that of their families. It is applicable to areas of the social studies of medicine, patient care, and families suffering from cancer. KEYWORDS: Cancer; Complementary and Alternative Medicine; Situational Analysis; Standpoint Feminism
ContributorsEsposito, Sydney Maria (Author) / Martinez, AirÃÂn (Thesis director) / Hruschka, Daniel (Committee member) / School of Human Evolution and Social Change (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
Almost sixty percent of adults within the United States are in a married or committed, cohabiting relationship. This study sought to examine the trajectory of relationship satisfaction over 14 consecutive days employing an ecological momentary assessment (EMA) method. Daily reports of relationship satisfaction were collected via a smartphone application developed from the LifeData platform. Phone-based interview questions posed one week after the 14-day EMA period afforded evaluation of usability and acceptability, in preparation for a much larger study of couples coping with cancer. Twenty-seven adults in a married or committed, cohabitating relationship served as participants, recruited from researchmatch.org. (These individuals were not coping with cancer.) Participants received a smartphone notification between 7:30pm and 8:30pm each day, with 45 minutes to begin recording their responses. A single item from the Dyadic Adjustment Scale (item #31) was used to assess relationship satisfaction. Findings revealed a marginally significant increase in satisfaction over the course of 14 days (b = 0.04, t = 1.85, p = .077). In addition, an intraclass correlation (ICC) value of 0.59 indicated larger between-person variability than within-person variability, suggesting that satisfaction varies more from one individual to another than it does within individuals over time. Finally, plots of mean relationship satisfaction by the standard deviation of relationship satisfaction showed lower variability in day-to-day satisfaction among those who were on average more satisfied with their relationship compared to those who were on average less satisfied. Feedback regarding convenience and ease of the application indicated favorable attitudes towards smartphone-based data collection.
ContributorsHagan, Rachel Claire (Author) / Langer, Shelby (Thesis director) / Randall, Ashley (Committee member) / Todd, Michael (Committee member) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Chemotherapy refers to the use of chemical agents to inhibit or stop the growth of rapidly dividing cancer cells. There are many side effects of systemic chemotherapy, which are caused because the drug not only kills cancer cells but healthy cells as well (American Cancer Society, 2017). Common side effects include fatigue, hair loss, bruising/ bleeding, infection, anemia, nausea and vomiting, appetite changes, constipation, diarrhea, oral sores, nerve and muscle pain, dry skin and color change, kidney dysfunction, weight loss, cognitive difficulties, mood changes, sexual dysfunction, and fertility problems (American Cancer Society, 2017). Research shows that complementary and alternative medicine (CAM) may help relieve some of the side effects of chemotherapy. Examples of CAM include herbal medicine, dietary supplements, acupuncture, yoga, Tai Chi, massage, electromagnetic therapy, meditation, biofeedback, music, dance, and guided imagery (Johns Hopkins Medicine, 2017). The aim of this creative project was to design a third-party website to provide information to patients undergoing chemotherapy and their family members regarding the use of CAM for the treatment of chemotherapy-induced side effects. Rationale for this project stemmed from a preliminary research step. We analyzed and coded for presence or absence of CAM-specific information on the websites of 20 National Cancer Institute-designated comprehensive cancer centers across the United States. Fifty percent of websites were double-coded. Inter-rater reliabilities (kappa values) for coding of the presence or absence of specific CAM therapies ranged from 0.38 for acupuncture to 1.00 for exercise and yoga, expressive arts, and herbs (mean kappa = 0.75). Fourteen of the 20 websites mentioned meditation or mindfulness; 13 mentioned nutrition; 12 mentioned acupuncture; 11 mentioned exercise or yoga; 11 mentioned massage; 8 mentioned expressive arts; and 3 mentioned herbs. Frequencies for presence of either a description of the specific CAM therapy or an explanation of how the therapy works were lower. We then conducted a literature review using PUBMED to find peer-reviewed research on the efficacy of the previously described seven CAM therapies. The literature search focused on systematic reviews and meta-analyses published within the past 10 years. Based on the literature obtained, we created summaries of the scientific evidence for each CAM therapy. This information is now provided on our third-party website in tabular form with summative statements. The website describes in lay language: chemotherapy, chemotherapy side effects, CAM, seven specific CAM therapies, and evidence for the efficacy or lack thereof of each. Per the American Nurses Association (2015), it is our responsibility to advocate for our patients through education and holistic treatment. The role of the nurse is to educate the patient about treatment options; however, it is not within the nurse's scope of practice to prescribe a treatment. As such, this website should not be viewed as a prescription for CAM therapies, but instead as a user-friendly and easily accessible resource for informed decision-making regarding the adjunctive use of CAM therapies.
ContributorsNichols, Abrianna (Co-author) / Varosky, Maxwell (Co-author) / Langer, Shelby (Thesis director) / Morris, Brenda (Committee member) / Arizona State University. College of Nursing & Healthcare Innovation (Contributor) / Sanford School of Social and Family Dynamics (Contributor) / Barrett, The Honors College (Contributor)
Created2017-12
Description
Smartphones are pervasive nowadays. They are supported by mobile platforms that allow users to download and run feature-rich mobile applications (apps). While mobile apps help users conveniently process personal data on mobile devices, they also pose security and privacy threats and put user's data at risk. Even though modern mobile platforms such as Android have integrated security mechanisms to protect users, most mechanisms do not easily adapt to user's security requirements and rapidly evolving threats. They either fail to provide sufficient intelligence for a user to make informed security decisions, or require great sophistication to configure the mechanisms for enforcing security decisions. These limitations lead to a situation where users are disadvantageous against emerging malware on modern mobile platforms. To remedy this situation, I propose automated and systematic approaches to address three security management tasks: monitoring, assessment, and confinement of mobile apps. In particular, monitoring apps helps a user observe and record apps' runtime behaviors as controlled under security mechanisms. Automated assessment distills intelligence from the observed behaviors and the security configurations of security mechanisms. The distilled intelligence further fuels enhanced confinement mechanisms that flexibly and accurately shape apps' behaviors. To demonstrate the feasibility of my approaches, I design and implement a suite of proof-of-concept prototypes that support the three tasks respectively.
ContributorsJing, Yiming (Author) / Ahn, Gail-Joon (Thesis advisor) / Doupe, Adam (Committee member) / Huang, Dijiang (Committee member) / Zhang, Yanchao (Committee member) / Arizona State University (Publisher)
Created2015