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Reliable low-overhead arbiter-based physical unclonable functions for resource-constrained IoT devices
KTH, School of Information and Communication Technology (ICT), Electronics.
KTH, School of Information and Communication Technology (ICT), Electronics.
2017 (English)In: ACM International Conference Proceeding Series, Association for Computing Machinery (ACM), 2017, 1-6 p., 3031837Conference paper (Refereed)
Abstract [en]

Physical unclonable functions (PUFs) are promising hardware security primitives suitable for resource-constrained devices requiring lightweight cryptographic methods. However, PUF responses frequently suffer from instability due to varying environmental conditions such as voltage and temperature. In this paper, we introduce circuit-level techniques to enhance the reliability of delay-based PUFs against temperature variation. We propose a voltage controlled current starved (VCCS) delay element that can effectively reduce temperature sensitivity and thus improve the reliability of PUF responses. Built on the VCCS delay element, two test-case arbiter-based PUF architectures are implemented in a standard 65nm CMOS technology and validated through post-layout Monte-Carlo simulation. Evaluation results show that two proposed PUF designs satisfy requirements on randomness, uniqueness, and reliability over a wide temperature range. Moreover, the proposed approach imposes only a marginal overhead leading to one of the most energy-efficient PUFs in the state-of-the-art.

Place, publisher, year, edition, pages
Association for Computing Machinery (ACM), 2017. 1-6 p., 3031837
Keyword [en]
Delay-based PUF, Hardware security, IoT security, Physical unclonable function (PUF), Temperature variation
National Category
Embedded Systems
Identifiers
URN: urn:nbn:se:kth:diva-208447DOI: 10.1145/3031836.3031837ScopusID: 2-s2.0-85015217196ISBN: 9781450348690 OAI: oai:DiVA.org:kth-208447DiVA: diva2:1107181
Conference
24 January 2017, Article number 3031837, Pages 1-64th Workshop on Cryptography and Security in Computing Systems, CS2 2017, Stockholm, Sweden, 24 January 2017
Note

QC 20170609

Available from: 2017-06-09 Created: 2017-06-09 Last updated: 2017-06-09Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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Output format
  • html
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  • asciidoc
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