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Title: Cashtags: Protecting the Input and Display of Sensitive Data.
Name(s): Mitchell, Michael J., 1984-, author
Wang, An-I Andy, professor directing dissertation
DeBrunner, Linda S. (Linda Sumners), university representative
Tyson, Gary Scott, committee member
Wang, Zhi, committee member
Florida State University, degree granting institution
College of Arts and Sciences, degree granting college
Department of Computer Science, degree granting department
Type of Resource: text
Genre: Text
Issuance: monographic
Date Issued: 2015
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource (114 pages)
Language(s): English
Abstract/Description: Mobile computing is the new norm. As people feel increasingly comfortable computing in public places such as coffee shops and transportation hubs, the threat of exposing sensitive information increases. While solutions exist to guard the communication channels used by mobile devices, the visual channel remains, to a significant degree, open. Shoulder surfing is becoming a viable threat in a world where users are frequently surrounded by high-power cameras, and where sensitive information from recorded images can be extracted with modest computing power. In response, this dissertation presents Cashtags: a system to defend against attacks on mobile devices based on visual observations. The system allows users to access sensitive information in public without the fear of visual leaks. This is accomplished by intercepting sensitive data elements before they are displayed on screen, then replacing them with non-sensitive information. In addition, the system provides a means of computing with sensitive data in a non-observable way. All of this is accomplished while maintaining full functionality and legacy compatibility across applications.
Identifier: FSU_migr_etd-9412 (IID)
Submitted Note: A Dissertation submitted to the Department of Computer Science in partial fulfillment of the Doctor of Philosophy.
Degree Awarded: Spring Semester, 2015.
Date of Defense: April 15, 2015.
Keywords: Anonymity, Human-computer Interaction, Mobile Systems, Privacy, Security
Bibliography Note: Includes bibliographical references.
Advisory Committee: An-I Andy Wang, Professor Directing Dissertation; Linda DeBrunner, University Representative; Gary Tyson, Committee Member; Zhi Wang, Committee Member.
Subject(s): Computer science
Persistent Link to This Record:
Owner Institution: FSU

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Mitchell, M. J. (2015). Cashtags: Protecting the Input and Display of Sensitive Data. Retrieved from