Transient Effect Ring Oscillators Leak Too - Archive ouverte HAL
Communication Dans Un Congrès Année : 2019

Transient Effect Ring Oscillators Leak Too

Ugo Mureddu
Brice Colombier
Nathalie Bochard
Lilian Bossuet
Viktor Fischer

Résumé

Up to now, the transient effect ring oscillator (TERO) seemed to be a better building block for PUFs than a standard ring oscillator, since it was thought to be immune to electromagnetic analysis. Here, we report for the first time that TERO PUFs are in fact vulnerable to electromagnetic analysis too. First, we propose a spectral model of a TERO cell output, showing how to fit it to experimental data obtained with the help of a spectrum analyser to recover the number of oscillations of a TERO cell. We then extend it to two TERO cells oscillating simultaneously, and show how this ability can be used to fully clone a TERO PUF. These results should help designers to better plan for susceptibility of TERO PUFs to electromagnetic analysis in their future designs.
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hal-02118620 , version 1 (06-09-2024)

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Ugo Mureddu, Brice Colombier, Nathalie Bochard, Lilian Bossuet, Viktor Fischer. Transient Effect Ring Oscillators Leak Too. IEEE Computer Society Annual Symposium on VLSI (ISVLSI 2019), Jul 2019, Miami, FL, United States. ⟨10.1109/ISVLSI.2019.00016⟩. ⟨hal-02118620⟩
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