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Filters: Author is Rajan, Anand  [Clear All Filters]
2017-11-13
Kar, Monodeep, Singh, Arvind, Mathew, Sanu, Rajan, Anand, De, Vivek, Mukhopadhyay, Saibal.  2016.  Exploiting Fully Integrated Inductive Voltage Regulators to Improve Side Channel Resistance of Encryption Engines. Proceedings of the 2016 International Symposium on Low Power Electronics and Design. :130–135.

This paper explores fully integrated inductive voltage regulators (FIVR) as a technique to improve the side channel resistance of encryption engines. We propose security aware design modes for low passive FIVR to improve robustness of an encryption-engine against statistical power attacks in time and frequency domain. A Correlation Power Analysis is used to attack a 128-bit AES engine synthesized in 130nm CMOS. The original design requires \textasciitilde250 Measurements to Disclose (MTD) the 1st byte of key; but with security-aware FIVR, the CPA was unsuccessful even after 20,000 traces. We present a reversibility based threat model for the FIVR-based protection improvement and show the robustness of security aware FIVR against such threat.