As an immediate result of this work, we suggest to use XOR Arbiter PUFs with odd numbers of arbiter chains whenever possible. Furthermore, our analysis technique can be applied to future types of PUF designs and can hence be used to identify design weaknesses, in particular when using Arbiter PUFs as building blocks and when developing designs with challenge pre-processing. Finally, we discuss consequences for the parameter recommendations of the Interpose PUF.
Investigating the reason of the systematic bias of XOR Arbiter PUF, we exhibit that Arbiter PUFs suffer from a systematic uniqueness weakness.
Category / Keywords: applications / Physically Unclonable Function, Bias, Arbiter PUF, Interpose PUF Date: received 24 Sep 2019 Contact author: nils wisiol at fu-berlin de Available format(s): PDF | BibTeX Citation Version: 20190929:183134 (All versions of this report) Short URL: ia.cr/2019/1091