Cryptology ePrint Archive: Report 2018/862

Attacking RO-PUFs with Enhanced Challenge-Response Pairs

Nils Wisiol and Marian Margraf

Abstract: This paper studies the security of Ring Oscillator Physically Unclonable Function (PUF) with Enhanced Challenge-Response Pairs as proposed by Delavar et al. We present an attack that can predict all PUF responses after querying the PUF with n+2 attacker-chosen queries. This result renders the proposed RO-PUF with Enhanced Challenge-Response Pairs inapt for most typical PUF use cases, including but not limited to all cases where an attacker has query access.

Category / Keywords: secret-key cryptography / PUF

Original Publication (in the same form): IFIP Advances in Information and Communication Technology

Date: received 13 Sep 2018

Contact author: nils wisiol at fu-berlin de

Available format(s): PDF | BibTeX Citation

Version: 20180922:175840 (All versions of this report)

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