Practical Instantaneous Frequency Analysis Experiments

Korkikian, Roman; Naccache, David; Almeida, Guilherme Ozari de; Canto, Rodrigo Portella do

doi:10.1007/978-3-662-44788-8_2

Cited by 1 publication

(1 citation statement)

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“…Dynamic voltage scrambling is one of the side-channel countermeasures that randomly changes power supply voltage level in order to decorrelate the leaked signal from the processed data [13]- [16], [22]- [24]. This technique has low area and power overhead and has proved to be very effective against power attacks when applied to multiphase switched-capacitor dc-dc converters.…”

Section: Sc Dc-dc Converter Specificationsmentioning

confidence: 99%

EM Side-Channel Countermeasure for Switched-Capacitor DC–DC Converters Based on Amplitude Modulation

Jevtić

Ylitolva

Calonge

et al. 2021

IEEE Trans. VLSI Syst.

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The security of IoT devices is becoming a major concern in industry. Noninvasive side-channel attacks pose a serious threat as they are capable of extracting secret information from distance while using low-cost equipment. In this article, we propose an efficient countermeasure technique against the electromagnetic (EM) side-channel attacks. The technique is applied to switched-capacitor (SC) dc-dc converters and is based on amplitude modulation of the load signal by the converter capacitance that acts as a carrier. We verify the proposed technique by using a reliable evaluation metric that predicts the correlation between the encryption secret key and the attacker's measured signal. The results show that the proposed technique can achieve cross correlation coefficients as low as 0.2, disabling the attacker from extracting the sensitive information. In addition, test vector leakage assessment (TVLA) ρ-test indicates that the number of leaky points for advanced encryption standard (AES) execution drops from 62 for unprotected circuit to zero for the circuit secured by the proposed technique. TVLA t-statistic is decreased by three orders of magnitude in the protected AES execution.

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Section: Sc Dc-dc Converter Specificationsmentioning

confidence: 99%