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Lithe: Lightweight Secure CoAP for the Internet of Things
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Systems.
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2013 (English)In: IEEE Sensors Journal, ISSN 1530-437X, E-ISSN 1558-1748, Vol. 13, no 10, 3711-3720 p.Article in journal (Refereed) Published
Place, publisher, year, edition, pages
2013. Vol. 13, no 10, 3711-3720 p.
National Category
Communication Systems
Research subject
Computer Science with specialization in Computer Communication
Identifiers
URN: urn:nbn:se:uu:diva-210206DOI: 10.1109/JSEN.2013.2277656ISI: 000324337900006OAI: oai:DiVA.org:uu-210206DiVA: diva2:661460
Available from: 2013-08-28 Created: 2013-11-04 Last updated: 2017-12-06Bibliographically approved
In thesis
1. Towards a secure synchronous communication architecture for low-power wireless networks
Open this publication in new window or tab >>Towards a secure synchronous communication architecture for low-power wireless networks
2016 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The Internet of Things (IoT) is becoming the future Internet where most day-to-day devices are connected to the Internet. These devices are often resource constrained and use low-power wireless communication. Hence networks of them are called low-power and lossy networks (LLNs). LLN devices may be used in critical applications such as health care, traffic and industrial plants that concern privacy and security, thus their communication has to be protected from malicious activities. LLNs face threats at different levels ranging from transmitting bits wirelessly to applications.

In this thesis, we primarily explore LLN security issues related to application protocols and attacks that target the availability of LLNs. Particularly, we investigate compressing messages of a transport security protocol, DTLS, to make it efficient for LLNs. The IETF proposes to use DTLS for securing CoAP, a specialized web protocol for constrained devices. Furthermore, we experimentally study disrupting the communication of one of the state of the art LLN protocols, Glossy, by attacking its core mechanism.

Secondarily, we aim at improving the performance of TCP in LLNs with mobility over a reliable data link protocol. To this end, we use a Glossy-based communication protocol, LWB, as a reliable data link protocol. We plan to use the evaluation of this work as a stepping stone towards comparing the performance of secure Glossy-based communication protocols.

The main contributions of this thesis are threefold. We propose novel message compression mechanisms for DTLS messages. We also present novel attacks on Glossy, evaluate the effectiveness of them experimentally, and propose potential counter measures. Finally, we show that a reliable data link protocol can improve the performance of TCP in static and mobile settings.

Place, publisher, year, edition, pages
Uppsala University, 2016
Series
Information technology licentiate theses: Licentiate theses from the Department of Information Technology, ISSN 1404-5117 ; 2016-004
National Category
Computer Engineering Communication Systems
Research subject
Computer Science with specialization in Computer Communication
Identifiers
urn:nbn:se:uu:diva-284331 (URN)
Supervisors
Available from: 2016-02-02 Created: 2016-04-17 Last updated: 2017-08-31Bibliographically approved

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Hewage, KasunVoigt, Thiemo

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