Behavior of temperature dependent SRAM-PUFs, and consequences for secret-key capacity

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Abstract

Physical Unclonable Functions (PUFs) are a resource for generating and sharing secret keys.
The mutual information between two respective observations of the same PUF gives an upper bound for the achievable secret-key rate of a secret-sharing scheme that relies on this PUF.
This mutual information can be increased by including side information about the source.
We show for a given statistical model of the SRAM-PUFs, how side information can be estimated from multiple observations of an SRAM cell. Finally, we calculate the achievable increased secret-key rate given the estimated side information.
Original languageEnglish
Title of host publicationProceedings of the 2017 Symposium on Information Theory and Signal Processing in the Benelux, 11-12 May 2017, Delft, The Netherlands
Place of PublicationDelft
PublisherTechnische Universiteit Delft
Pages125-132
Publication statusPublished - 2017
EventSymposium on Information Theory and Signal Processing in the Benelux - Delft, Netherlands
Duration: 11 May 201712 May 2017

Conference

ConferenceSymposium on Information Theory and Signal Processing in the Benelux
Abbreviated titleSITB2017
CountryNetherlands
CityDelft
Period11/05/1712/05/17

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Kusters, C. J., Ignatenko, T., & Willems, F. M. J. (2017). Behavior of temperature dependent SRAM-PUFs, and consequences for secret-key capacity. In Proceedings of the 2017 Symposium on Information Theory and Signal Processing in the Benelux, 11-12 May 2017, Delft, The Netherlands (pp. 125-132). Delft: Technische Universiteit Delft.