Efficient key generation scheme for SRAM-PUFs using polar codes

Bin Chen, Tanya Ignatenko, Frans Willems

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Samenvatting

Physical unclonable functions (PUFs) are a new promising means to realize cryptographic scenarios such as identification, authentication and secret key generation. PUFs avoid the need for key storage, because the device-unique randomness can be translated into a cryptographic key. SRAM-PUFs enjoy the properties that, while being easily evaluated (after a device power-up), they are unique, reproducible, physically unclonable and unpredictable. Error correction codes (ECCs) are essential blocks of secret-generation schemes, since PUF observations are always effected by noise and environmental changes. In this paper, we propose practical error correction schemes for PUF-based secret generation that are based on polar codes. The proposed scheme could generate a 128-bit key or 256-bit key using less PUF bits and helper data bits than before and achieve a low failure probability for a practical SRAM-PUFs application with error probability between 15% and 25%. Therefore SRAM-PUFs are considered to combine very well with authentication and unique cryptographic key generation for resource constrained devices.
Originele taal-2Engels
TitelPROCEEDINGS of the 2017 Symposium on Information Theory and Signal Processing in the Benelux
RedacteurenRichard Heusden, Jos H. Weber
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's32-40
Aantal pagina's8
ISBN van elektronische versie9778-94-6186-811-4
StatusGepubliceerd - 2017
EvenementSymposium on Information Theory and Signal Processing in the Benelux - Delft, Nederland
Duur: 11 mei 201712 mei 2017

Congres

CongresSymposium on Information Theory and Signal Processing in the Benelux
Verkorte titelSITB2017
LandNederland
StadDelft
Periode11/05/1712/05/17

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Chen, B., Ignatenko, T., & Willems, F. (2017). Efficient key generation scheme for SRAM-PUFs using polar codes. In R. Heusden, & J. H. Weber (editors), PROCEEDINGS of the 2017 Symposium on Information Theory and Signal Processing in the Benelux (blz. 32-40). Institute of Electrical and Electronics Engineers.