UbiPAL : secure messaging and access control for ubiquitous computing

dc.contributor.advisorAlvisi, Lorenzoen
dc.contributor.advisorDickerson, Robert F.en
dc.creatorBielstein, Cameron Tayloren
dc.creator.orcid0000-0003-3461-6084en
dc.date.accessioned2015-10-22T15:52:45Zen
dc.date.available2015-10-22T15:52:45Zen
dc.date.issued2015-05en
dc.date.submittedMay 2015en
dc.date.updated2015-10-22T15:52:45Zen
dc.descriptiontexten
dc.description.abstractThe ubiquitous computing environment and modern trends in personal computing, such as body sensor networks and smart houses, create unique challenges in privacy and access control. Lack of centralized computing and the dynamic nature of human environments and access rules render most access control systems insufficient for this new category of systems. UbiPAL is an object-oriented communication framework for ubiquitous systems which provides secure communication and decentralized access control. UbiPAL uses a modified SecPAL implementation to provide reliable, ad hoc access control. The UbiPAL system uses cryptographically signed, publicly held namespace certificates and access control lists in the style of TLS certificates. This approach allows message authentication and authorization in an ad hoc, completely decentralized method while maintaining human readability of policy language. UbiPAL was implemented as a C++ library, made freely available at (1), and evaluated to have minimized overhead. Even on the slowest device evaluated, a Raspberry Pi, UbiPAL authentication and authorization adds less than 20 milliseconds to the delivery a message with a message overhead of 153 bytes. The UbiPAL programming model separates access policy from application programming and results in small amounts of code required from the application programmer, creating an accessible paradigm for programming ubiquitous computing systems.en
dc.description.departmentComputer Sciencesen
dc.format.mimetypeapplication/pdfen
dc.identifierdoi:10.15781/T2KG7Ten
dc.identifier.urihttp://hdl.handle.net/2152/31851en
dc.language.isoenen
dc.subjectUbiquitous computingen
dc.subjectMobile computingen
dc.subjectDistributed systemsen
dc.subjectAccess controlen
dc.subjectSecure messagingen
dc.subjectPrivacyen
dc.subjectSecurityen
dc.subjectLanguagesen
dc.titleUbiPAL : secure messaging and access control for ubiquitous computingen
dc.typeThesisen
thesis.degree.departmentComputer Sciencesen
thesis.degree.disciplineComputer Scienceen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelMastersen
thesis.degree.nameMaster of Science in Computer Sciencesen

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