Security for Ubiquitous Internet-Connected Smart Objects

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Sethi, Mohit
dc.date.accessioned 2016-12-21T10:01:35Z
dc.date.available 2016-12-21T10:01:35Z
dc.date.issued 2016
dc.identifier.isbn 978-952-60-7224-1 (electronic)
dc.identifier.isbn 978-952-60-7225-8 (printed)
dc.identifier.issn 1799-4942 (electronic)
dc.identifier.issn 1799-4934 (printed)
dc.identifier.issn 1799-4934 (ISSN-L)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/23874
dc.description.abstract Ubiquitous computing, also called the Internet of Things (IoT), is rapidly transforming our lives and our society. The vision of an interconnected world where physical devices are seamlessly integrated into the Internet is becoming a reality. The emergence of low-cost microcontrollers, energy-efficient wireless communications, and embedded sensors and actuators has transformed everyday devices into connected smart objects that can understand and react to their environment. These devices include both resource-constrained battery-operated devices, such as body sensors, and more powerful Internet-connected appliances, such as televisions and cameras. However, the security mechanisms for smart objects are still not ready for wide-scale deployment. There is additionally a concern that the existing solutions are not sufficiently usable for adoption in everyday devices, which often have very limited user interfaces. In this dissertation, we develop new secure deployment and communication methods for connected smart objects that are simple, user-friendly, and also energy efficient. We take into account the entire lifecycle of a smart object. We first build a secure and energy-efficient communication model that uses a proxy to serve data on behalf of sleeping resource-constrained smart objects, thereby allowing them to appear as always-online web servers. Next, we demonstrate how these smart objects can leverage the existing mobile network infrastructure to securely authenticate and communicate with Internet services. Thereafter, we study the deployment challenges of electronic displays. We found that deploying large numbers of ubiquitous displays is cumbersome as they need to be correctly configured to access both the Internet and online servers, despite their minimal input capabilities. In our secure bootstrapping solution, the displays show a bar code which, when scanned by the user, enables automatic configuration of the wireless network along with the online management service and content to be shown. For effortless deployment, we build our solution on standard protocols without requiring changes to the network infrastructure. Finally, we develop a solution for securely pairing mobile devices. Instead of relying on inconvenient user-entered codes, our solution uses an out-of-band (OOB) channel which is secret from anyone that is not physically present. The protocol development was motivated by the invention of a new human source for fuzzy secrets: synchronized drawing with two fingers of the same hand on two touch screens or surfaces. We show the feasibility of each of our proposed solutions with prototype implementation. Where relevant, we also provide experimental results confirming that our solutions incur minimal memory and computational overhead, while also being energy efficient and easy to use. Lastly, we actively contribute the research results to relevant standards bodies. en
dc.format.extent 113 + app. 69
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Aalto University en
dc.publisher Aalto-yliopisto fi
dc.relation.ispartofseries Aalto University publication series DOCTORAL DISSERTATIONS en
dc.relation.ispartofseries 278/2016
dc.relation.haspart [Publication 1]: Mohit Sethi, Ari Keränen and Jari Arkko. End-to-end Security for Sleepy Smart Object Networks. In Proceedings of the 37th IEEE Conference on Local Computer Networks Workshops (LCN Work- shops), Clearwater, FL, pp. 964-972, ISBN 978-1-4673-2130-3, October 2012. DOI: 10.1109/LCNW.2012.6424089
dc.relation.haspart [Publication 2]: Mohit Sethi, Pranvera Kortoçi, Mario Di Francesco and Tuomas Aura. Secure and Low-Power Authentication for Resource- Constrained Devices. In Proceedings of the 5th International Conference on the Internet of Things (IoT 2015), Seoul, pp. 30-36, ISBN 978-1-4673-8058-4, October 2015. DOI: 10.1109/IOT.2015.7356545
dc.relation.haspart [Publication 3]: Mohit Sethi, Elena Oat, Mario Di Francesco and Tuomas Aura. Secure Bootstrapping of Cloud-Managed Ubiquitous Displays. Proceedings of the ACM International Joint Conference on Pervasive and Ubiquitous Computing (Ubicomp ’14), Seattle, WA, pp. 739-750, ISBN 978-1-4503-2968-2, September 2014. DOI: 10.1145/2632048.2632049
dc.relation.haspart [Publication 4]: Mohit Sethi, Maria Lijding, Mario Di Francesco and Tuomas Aura. Flexible Management of Cloud-Connected Digital Signage. In Proceedings of the 12th IEEE International Conference on Ubiquitous Intelligence and Computing (UIC), Beijing, pp. 205-212, ISBN 978- 1-4673-7211-4, August 2015. DOI: 10.1109/UIC-ATC-ScalCom-CBDCom-IoP.2015.52
dc.relation.haspart [Publication 5]: Mohit Sethi, Markku Antikainen and Tuomas Aura. Commitment-based device pairing with synchronized drawing. In Proceedings of the IEEE International Conference on Pervasive Computing and Communications (PerCom), Budapest, pp. 181-189, ISBN 978-1- 4799-3445-4, March 2014. DOI: 10.1109/PerCom.2014.6813959
dc.relation.haspart [Publication 6]: Markku Antikainen, Mohit Sethi, Sinisa Matetic and Tuomas Aura. Commitment-based device-pairing protocol with synchronized drawings and comparison metrics. Pervasive and Mobile Computing (PMC), Volume 16, Part B, pp. 205–219, ISSN 1574-1192, January 2015. DOI: 10.1016/j.pmcj.2014.10.006
dc.subject.other Computer science en
dc.subject.other Telecommunications engineering
dc.title Security for Ubiquitous Internet-Connected Smart Objects en
dc.type G5 Artikkeliväitöskirja fi
dc.contributor.school Perustieteiden korkeakoulu fi
dc.contributor.school School of Science en
dc.contributor.department Tietotekniikan laitos fi
dc.contributor.department Department of Computer Science en
dc.subject.keyword IoT en
dc.subject.keyword ubiquitous computing en
dc.subject.keyword security en
dc.subject.keyword standards en
dc.subject.keyword bootstrapping en
dc.identifier.urn URN:ISBN:978-952-60-7224-1
dc.type.dcmitype text en
dc.type.ontasot Doctoral dissertation (article-based) en
dc.type.ontasot Väitöskirja (artikkeli) fi
dc.contributor.supervisor Aura, Tuomas, Prof., Aalto University, Department of Computer Science, Finland
dc.opn Google, Iulia Ion, Dr., United States of America (USA)
dc.rev Martinovic, Ivan, Prof., University of Oxford, UK
dc.rev Lagesse, Brent, Prof., University of Washington, USA
dc.date.defence 2017-01-20


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