Cryptology ePrint Archive: Report 2013/610

Key-recovery Attacks on Various RO PUF Constructions via Helper Data Manipulation

Jeroen Delvaux and Ingrid Verbauwhede

Abstract: Physically Unclonable Functions (PUFs) are security primitives that exploit the unique manufacturing variations of an integrated circuit (IC). They are mainly used to generate secret keys. Ring oscillator (RO) PUFs are among the most widely researched PUFs. In this work, we claim various RO PUF constructions to be vulnerable against manipulation of their public helper data. Partial/full key-recovery is a threat for the following constructions, in chronological order. (1) Temperature-aware cooperative RO PUFs, proposed at HOST 2009. (2) The sequential pairing algorithm, proposed at HOST 2010. (3) Group-based RO PUFs, proposed at DATE 2013. (4) Or more general, all entropy distiller constructions proposed at DAC 2013.

Category / Keywords: ring oscillator PUF, helper data, fuzzy extractor

Original Publication (with minor differences): Design, Automation & Test in Europe (DATE 2014)

Date: received 20 Sep 2013, last revised 18 Mar 2014

Contact author: jeroen delvaux at esat kuleuven be

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Version: 20140319:024606 (All versions of this report)

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