95822 20210902121801.0 doi 10.1109/ACCESS.2020.3020020 sideral 120161 ART-2020-120161 eng Garcia-Bosque, M. Universidad de Zaragoza (orcid)0000-0001-8648-6248 Proposal and Analysis of a Novel Class of PUFs Based on Galois Ring Oscillators 2020 Access copy available to the general public Unrestricted In this article, the possibility of using Galois ring oscillators to construct physically unclonable functions (PUFs) has been studied. The idea is to use novel PUF architectures, similar as the ring oscillator PUFs that, instead of comparing frequencies, compare the statistical bias of pairs of oscillators implemented in different locations. To study the viability of these systems, three different Galois oscillators have been implemented in several locations in several FPGAs and we have studied the main properties of their bias: repeatability, variability with the location, variability with the FPGA and spatial autocorrelation. Based on this study, we have determined that the bias of these oscillators meet the requirements that are needed to be used to construct a PUF. Finally, a PUF based on comparing the bias of neighboring 7-LUT Galois ring oscillators have been implemented and analyzed. The experimental results show that this PUF generates uniform responses that are highly reproducible and unique, making this PUF suitable for being used in identification applications. info:eu-repo/grantAgreement/ES/MINECO-FEDER/TEC2017-85867-R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.367 2020 COMPUTER SCIENCE, INFORMATION SYSTEMS 65 / 162 = 0.401 2020 Q2 T2 TELECOMMUNICATIONS 36 / 91 = 0.396 2020 Q2 T2 ENGINEERING, ELECTRICAL & ELECTRONIC 94 / 273 = 0.344 2020 Q2 T2 0.586 2020 Computer Science (miscellaneous) 2020 Q1 Materials Science (miscellaneous) 2020 Q1 Engineering (miscellaneous) 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Diez-Senorans, G. Universidad de Zaragoza (orcid)0000-0001-9131-0861 Sanchez-Azqueta, C. Universidad de Zaragoza (orcid)0000-0002-8236-825X Celma, S. Universidad de Zaragoza (orcid)0000-0003-0182-7723 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 5008 250 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Electrónica 8 (2020), 157830-157839 IEEE Access IEEE Access 2169-3536 6355181 http://zaguan.unizar.es/record/95822/files/texto_completo.pdf Versión publicada 529780 http://zaguan.unizar.es/record/95822/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:95822 articulos driver 2021-09-02-09:54:50 ARTICLE