Exploiting on-chip power management for side-channel security. Singh, A., Kar, M., Mathew, S., Rajan, A., De, V., & Mukhopadhyay, S. In 2018 Design, Automation Test in Europe Conference Exhibition (DATE), pages 401–406, March, 2018. doi abstract bibtex The high-performance and energy-efficient encryption engines have emerged as a key component for modern System-On-Chip (SoC) in various platforms including servers, desktops, mobile, and IoT edge devices. A key bottleneck to secure operation of encryption engines is leakage of information through various side-channels. For example, an adversary can extract the secret key by performing statistical analysis on measured power and electromagnetic (EM) emission signatures generated by the hardware during encryption. Countermeasures to such side-channel attacks often come at high power, area, or performance overheads. Therefore, design of side-channel secure encryption engines is a critical challenge for high-performance and/or power-/energy efficient operations. This paper reviews that although low-power requirement imposes critical challenge for side-channel security, but circuit techniques traditionally developed for power management also present new opportunities for side-channel resistance. As a case study, we review the feasibility of using integrated voltage regulator and dynamic voltage frequency scaling normally used for efficient power management, for increasing power-side-channel resistance of AES engines. The hardware measurement results from test-chip fabricated in 130nm process are presented to demonstrate the impact of power management circuits on side-channel security.
@inproceedings{singh_exploiting_2018,
title = {Exploiting on-chip power management for side-channel security},
doi = {10.23919/DATE.2018.8342043},
abstract = {The high-performance and energy-efficient encryption engines have emerged as a key component for modern System-On-Chip (SoC) in various platforms including servers, desktops, mobile, and IoT edge devices. A key bottleneck to secure operation of encryption engines is leakage of information through various side-channels. For example, an adversary can extract the secret key by performing statistical analysis on measured power and electromagnetic (EM) emission signatures generated by the hardware during encryption. Countermeasures to such side-channel attacks often come at high power, area, or performance overheads. Therefore, design of side-channel secure encryption engines is a critical challenge for high-performance and/or power-/energy efficient operations. This paper reviews that although low-power requirement imposes critical challenge for side-channel security, but circuit techniques traditionally developed for power management also present new opportunities for side-channel resistance. As a case study, we review the feasibility of using integrated voltage regulator and dynamic voltage frequency scaling normally used for efficient power management, for increasing power-side-channel resistance of AES engines. The hardware measurement results from test-chip fabricated in 130nm process are presented to demonstrate the impact of power management circuits on side-channel security.},
booktitle = {2018 {Design}, {Automation} {Test} in {Europe} {Conference} {Exhibition} ({DATE})},
author = {Singh, A. and Kar, M. and Mathew, S. and Rajan, A. and De, V. and Mukhopadhyay, S.},
month = mar,
year = {2018},
pages = {401--406}
}
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