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Computer Science > Networking and Internet Architecture

arXiv:2207.07486 (cs)
[Submitted on 15 Jul 2022]

Title:Securing name resolution in the IoT: DNS over CoAP

Authors:Martine S. Lenders, Christian Amsuss, Cenk Gundogan, Marcin
Nawrocki, Thomas C. Schmidt, Matthias Wahlisch
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    Abstract: In this paper, we present the design, implementation,
    and analysis of DNS over CoAP (DoC), a new proposal for secure
    and privacy-friendly name resolution of constrained IoT devices.
    We implement different design choices of DoC in RIOT, an
    open-source operating system for the IoT, evaluate performance
    measures in a testbed, compare with DNS over UDP and DNS over
    DTLS, and validate our protocol design based on empirical DNS IoT
    data. Our findings indicate that plain DoC is on par with common
    DNS solutions for the constrained IoT but significantly
    outperforms when additional, CoAP standard features are used such
    as block-wise transfer or caching. With OSCORE for end-to-end
    security, we can save more than 10 kBytes of code memory compared
    to DTLS while enabling group communication without compromising
    the trust chain when using intermediate proxies or caches. We
    also discuss a scheme for very restricted links that compresses
    redundant or excessive information by up to 70%.

Comments: 12 pages, 13 figures, 4 tables
Subjects: Networking and Internet Architecture (cs.NI)
Cite as:  arXiv:2207.07486 [cs.NI]
          (or arXiv:2207.07486v1 [cs.NI] for this version)
          https://doi.org/10.48550/arXiv.2207.07486
          Focus to learn more
          arXiv-issued DOI via DataCite

Submission history

From: Martine Sophie Lenders [view email]
[v1] Fri, 15 Jul 2022 14:10:53 UTC (1,814 KB)
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