Exploiting Fully Integrated Inductive Voltage Regulators to Improve Side Channel Resistance of Encryption Engines
| Title | Exploiting Fully Integrated Inductive Voltage Regulators to Improve Side Channel Resistance of Encryption Engines |
| Publication Type | Conference Paper |
| Year of Publication | 2016 |
| Authors | Kar, Monodeep, Singh, Arvind, Mathew, Sanu, Rajan, Anand, De, Vivek, Mukhopadhyay, Saibal |
| Conference Name | Proceedings of the 2016 International Symposium on Low Power Electronics and Design |
| Publisher | ACM |
| Conference Location | New York, NY, USA |
| ISBN Number | 978-1-4503-4185-1 |
| Keywords | countermeasures, Integrated Voltage Regulators, Metrics, pubcrawl, Resiliency, Scalability, security, side channel attacks, Time Frequency Analysis |
| Abstract | 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. |
| URL | http://doi.acm.org/10.1145/2934583.2934607 |
| DOI | 10.1145/2934583.2934607 |
| Citation Key | kar_exploiting_2016 |